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HomeMy WebLinkAboutPermit L06-037 - WA STATE DEPARTMENT OF TRANSPORTATION / RAY ALLISON - SHORELINE SUBSTANTIAL DEVELOPMENTNICKEL IMPROVEMENT PROJECT SHORELINE SUBSTANTIAL DEVELOPMENT I-405 & I-5 to SR -169 'enton L06-037 • Ld( — 0 51 SEE LIBRARY UNDER TUKWILA ENVIRONMENT FOR: SPRINGBROOK CREEK WETLAND AND HABITAT MITIGATION BANK MITIGATION BANK INSTRUMENT AUGUST 8, 2006 INTERSTATE orridor Program Congestion Relief & Bus Rapid Transit Projects DETERMINATION OF NONSIGNIFICANCE (DNS) AND ADOPTION OF EXISTING ENVIRONMENTAL DOCUMENT 1 -405 SR 181 and SR 167 Ramp and Safety Improvement Project Description of proposal: This Project will widen three existing ramps along 1 -405, two ramps at the SR 181 interchange and one ramp at the SR 167 interchange. These improvements address both safety and traffic operations. The ramp improvements at the SR 181 interchange will widen the off -ramp from northbound 1 -405 to SR 181. In addition, i.mprovemen.ts at the SR 181 interchange will widen the on -ramp from SR 181 to northbound I -405. New ramp meter equipment and a signal cabinet will be installed at the on -ramp. There will be a slight increase in capacity as the new configuration will have two metered general- purpose lanes and an HOV bypass shoulder. The existing configuration has one general- purpose lane and an HOV bypass lane. A new traffic signal with a dual protected left turn arrow will be added to SR 181 at the intersection with the 1- 405 ramp termini. The ramp improvement at the SR 167 interchange will widen the on -ramp from southbound SR 167 to southbound 1 -405. New ramp meter equipment and a signal cabinet will also be installed. There will be a slight increase in capacity as the new configuration will have two metered general- purpose lanes and an HOV bypass lane. The existing configuration only has a general- purpose lane. These improvements add a total of 23,523 square feet of impervious surface. The Highway Runoff Manual will be followed to provide detention and treatment for the new impervious surface. Water quantity detention will be provided by constructing a new detention pond within the southwest quadrant of the SR 181 interchange and modifying the detention pond on the south side of I -405 at milepost 1.90. Water quality treatment will be provided through the construction of new ecology embankments. The Project occurs entirely within existing WSDOT right -of -way. Therefore, there are no Zoning issues. Location of proposal, including street address, if any: The Ramp and Safety Improvement Project extends for approximately 0.23 miles along I -405 at the 1 -405 northbound off and on ramps at SR 181 and the southbound SR 167 to southbound I -405 on -ramp. Title and Description of documents being adopted: • 1 -405, SR 181. and SR 167 Ramp and Safety Improvement Project Environmental Classification Summary and Supplemental SEPA Checklist Package (WSDOT, March 2007) We have identified and adopted this document as being appropriate for this proposal after independent review. The document meets our environmental review needs for the current proposal and will accompany the proposal to the decision maker. Name of agency adopting document: Washington State Department of Transportation Urban Corridors Office Proponent/Lead Agency: Washington State Department of Transportation Determination: The lead agency for this proposal has determined that it does not have a probable significant adverse impact on the environment. An environmental impact statement (EIS) is not required under RCW 43.21C.030 (2)(c). This decision was made after review of a completed environmental checklist and the supporting documentation on file with the lead. agency. This information is available to the public on request. Please note that our SEPA checklist document is titled 1405, SR 181 and SR 167 Ramp and Safety Improvement Project Environmental Classification Summary and it was completed in March 2007. The document is available to view during normal business hours at: 1-405 Project Office, 600 - 108th Avenue NE, Suite 405, Foster Library; Highlands Public Library; Renton. Public Library; Tukwila Regional Library; and the University of Washington Library (Suzzalo and Bothell). ❑ There is no comment period for this DNS. Q This DNS is issued under WAC 197 -11- 340(2); the lead agency will not act on this proposal for 14 days from the date below. Comments must be submitted by April 16th, 2007. Responsible Official: Allison Hanson PositiontTitle: WSDOT 1. -405 Project Environmental Manager Address: 1 -405 Project Office 600 - 108th Avenue NE, Suite 405 Bellevue, WA 98004 Phone: 425 - 456 -8610 Date: April 2, 2006 Signature: 4v/\ ccev\./ Federal Aid Project Number , y Route 405 P roject Decr Date Created 3 -28 -2007 F � • Re- Evaluate Intent of Submittal • Preliminary ® Final Agency WSDOT Federal Program ® 20.205 Title • 20.209 • Other Project Title 1-405, SR 181 and SR 167 Ramp and Safety Improvement Project Begin Mp 0.85,2.00 End Mp KP 1.04,2.20 Miles 0.23 Townships 23 Ranges 4,5 KP KM Sections SW 24, NW 19 County I Water Resource Inventory Area (WRIA) No. & Name King 9 Green/Duwamish & Central Puget Sound Within Puget Sound No Basin? C.. Yes • Project Description - Describe the proposed project, including the purpose of need for the project. See attached Project Description � Washington State �I/ Department of Transportation NEPA ❑ Class I - Environmental Impact Statement (EIS) ❑ Class II - Categorically Excluded (CE) CE Type (from 23 CFR 771.117) ❑ Projects Requiring Documentation (Documented CE) (LAG 24.22) O Class III - Environmental Assessment (EA) ® Programmatic CE MOU �v6r�r+n cam tat #assyflcat SEPA ❑ Categorically exempt per WAC 197 -11 -800 CE Type (from SEPA Checklist) ® Determination of Non - Significance (DNS) ❑ Environmental Impact Statement (EIS) ❑ Adoption ❑ Addendum ❑ Supplemental Local Agency Approving Authority Regional Local Programs Engineer / Assistant Secretary DOT Form 140 -100 EF Revrsed 1/2007 Federal Highway Administration NEPA Approval Signatures Highways and Local Programs Environmental Engineer Page 1 of 7 Local Agency Environmental Classification Summary Date Date ft Pr Date Date Completed By (Print Official's Name) Telephone (include area code) Fax (include area code) F ., ' t .. ' °�` : , J?�art3. Pertiitts and Appovals,Regwireti . , , .,. .._ Yes No Permit or Approval Yes No Permit or Approval • ►:+ Corps of Engineers • Sec. 10 • Sec. 404 • :+ Shoreline Permit • Nationwide Type • ►I State Waste Discharge Permit • Individual Permit No. • ❑ ■.i Section 4(f) /6(f): Wildlife Refuges, Recreation Areas, Historic Properties • ►: Coast Guard Permit • ■:+ Coastal Zone Management Certification ►'e TESC Plans Completed ® Water Rights Permit • ,+ Critical Area Ordinance (CAO) Permit • .+ • ESA and EFH Compliance (See Part 5) • Water Quality Certification - Sec. 401 ❑ ❑ ❑ Issued by ►:+ Flood Plain Development Permit :+ Forest Practice Act Permit • ►:+ Tribal Permit(s), (if any) ►.+ Hydraulic Project Approval • _+ Local Building or Site Development Permits • ❑ ■:+ Local Clearing and Grading Permit ® Natl. Historic Preservation Act - Section 106 • ►_ Other Permits, including GMA (List): i;:4 ❑ IN National Pollutant Discharge Elimination System (NPDES) Baseline General for Construction _+ ROW Acquisition Required Etivirofineti t7Ulsiderations Will the project involve work in or affect any of the following? Identify proposed mitigation. Attach additional pages or supplemental information if necessary. 1. Air Quality - Identify any anticipated air quality issues. Is the project included in the Metropolitan Transportation Plan? ❑ Yes ® No If Yes, date Metropolitan Transportation Plan was adopted. Is the project located in an Air Quality Non - Attainment Area or Maintenance Area (for carbon monoxide, ozone, or PM10)? ® Yes ❑ No Is the project exempt from Air Quality conformity requirements? ® Yes ❑ No (If Yes, identify exemption below.) Shoulder improvements WAC 173 - 420 -110 -1 (f) 40 CFR 93.126 2. Critical /Sensitive Areas - Identify any known Critical or Sensitive Areas as designated by local Growth Management Act ordinances. a. Aquifer Recharge Area, Wellhead Protection Area, or Sole Source Aquifer. If located within a sole source aquifer, is project exempt from EPA approval? ® Yes ❑ No Project is over 10 - year recharge area for the Cedar Valley Aquifer, but not within the protection area. b. Geologically Hazardous Area N/A c. Habitat. List known fish and wildlife species present and describe general habitat. N/A d. Are wetlands present within the project area? ❑ Yes ® No If Yes, estimated area of impact in acre(s): The wetland buffer for the Nelson side channel is within the project area. There will be approximately 0.06 acres of buffer impacts. DOT Form 140 -100 EF Revised 1/2007 Page 2 of 7 DOT Form 140 -100 EF Revised 1/2007 Page 3 of 7 y w hytronmentat COt'1Sidera i s 'Continued .,„ 7 4- r t ; - it 3. Cultural Resources /Historic Structures - Identify any historic, archaeological, or cultural resources present with the project's area of potential effects. Does the project fit into any of the exempt types of projects listed in Sect. 24.82(a) of the LAG Manual? .I Yes • No If Yes, note exemption below. All work between highway and adjacent frontage road per LAG 24.81 (c) If No: Date of DAHP consultation Date of Tribal consultation(s) (if applicable) Adverse affects on cultural/historic resources? 0 Yes 0 No If Yes, date of approved Section 106 MOA 4. Flood Plains or Ways Is the project located in a 100 -year flood plain? • Yes ® No If yes, is the project located in a 100 -year floodway? • Yes • No Will the project impact a 100 -year flood plain? • Yes ■:4 No (If Yes, describe impacts and analysis conducted.) 5. Hazardous and Problem Waste - Identify potential sources and type. Is the project likely to involve site clean -up? ❑ Yes ■:4 No Will the project create any hazardous waste? ❑ Yes Ci No (If Yes, describe waste handling and disposal.) 6. Noise - Identify potential sensitive receptors or previous mitigation commitments. Briefly describe your impacts to the sensitive receptor, if present. See attached Noise Effects Determination 7. Parks, Recreation Areas, Wildlife Refuges, Historic Properties, or Scenic Rivers /Byways, 4(f) /6(f) Lands - Identify any properties within the project limits and, if any are present, describe impacts to properties present. N/A DOT Form 140 -100 EF Revised 1/2007 Page 3 of 7 ' . a b S . z .. .:.... �J „ „�'..� „ a I t, EFiViro t a l C arl a j d e r ation s Conf Ih Y ed ;: - 3 � S . �'�� 8. Resource Lands - Identify arty of the following resource lands within 300 feet of the project limits and those otherwise impacted by the project. Describe any impacts to any resource lands identified. a. N/A If present, is resource considered to be prime and unique farmland? • Yes ■ No If Yes, date of approval from Natural Resources Conservation Service (NRCS) b. Forest/Timber N/A c. Mineral N/A 9. Rivers, Streams (Continuous, Intermittent), or Tidal Waters a. Identify all waterbodies within 300 feet of the project limits or that will otherwise be impacted. Fisheries WA Stream No. Ecology 303d Report No. OWW -134 Reason for 303d listing Oxygen, Fecal, Temperature Date of Report 6/2/04 Green River - WA -09 -1020 is 303d listed Rolling Hills Creek b. Identify stream crossing structures by type. There are no streams crossed by structures associated with this project. 10. Tribal Lands - Identify whether the project will impact any Tribal lands. No tribal lands will be. affected. 11. Visual Quality Will the project impact roadside classification or visual aspects? • Yes ® No (If Yes, identify the impacts.) DOT Form 140 -100 EF Revised 112007 Page 4 of 7 —. ' c< - m N--pv "r ..3. ::.., ;Part;4a Enviroti en#ai onsideratton.S ;:Contincie 12. Water Quality /Storm Water Has NPDES municipal general permit been issued for this WRIA? • Yes ■5 No Amount of existing impervious surface within project limits: 93,947 s/f Net new impervious surface to be created as a result of project: 23,523 s/f Will this project's proposed stormwater treatment facility be consistent with the guidelines provided by either WSDOT's HRM, DOE's westem or eastern Washington stormwater manuals, or a local agency equivalent manual? ® Yes • No If no, explain proposed water quality /quantity treatment for new and any existing impervious surface associated with proposed project. 13. Previous Environmental Commitments Have previous environmental commitments been made in the project area? _+ Yes • No Describe commitments. If commitments are a result of permit conditions, identify issuing agency, permit number and date, and how commitments will be met. This project will follow commitments made for the 1 -405, 1 -5 to SR 169 Stage 1 Widening Project. 14. Long -Term Maintenance Commitments Are long -term maintenance commitments necessary for this project? ■ Yes : No Identify. 15. Environmental Justice Are minority and/or low income communities impacted by the project? • Yes No Of Yes, identify the impacts.) DOT Form 140 -100 EF Revised 112007 Page 5 of 7 .. S yBi ologicat **.s l*ilt and >E ' Y4.1 X00. ,,, ,,= Answer Permits 1. Location 4. 8. 12a. ALL questions. Refer to the Part 5 Biological Assessment Checklist Instructions as indicated in Part 2, required: permits related to critical or sensitive before completing this section. HPA, 404 wetlands, or Are any of the following environmental permits, local clearing and grading, shorelines, or areas ordinances? • Yes ® No 2. Will any construction work occur within 0.5 miles of any of the following: 3. Does the project involve blasting, pile driving, concrete sawing, rock drilling, or rock scaling activities within 1 mile of any of the following? Bald eagle nesting territories, winter concentration areas, or bald eagle communal roosts? • Yes .I No • Don't Know 0 Yes ►:.� No ❑ Don't Know Spotted owl management circles or designated critical habitat? • Yes ® No • Don't Know • Yes ►.+ No • Don't Know Marbled murretet nest or occupied stand, or designated critical habitat? • Yes 0 :1 No ❑ Don't Know ■Yes ►.� No ❑ Don't Know Western snowy plover designated critical habitat? • Yes ® No 0 Don't Know • Yes .+ No ❑ Don't Know Federal threatened, endangered, proposed, or candidate plant species locations or documented habitat? 0 Yes ►'_ No • Don't Know 0 Yes ►'_ No • Don't Know Canada lynx habitat? ❑ Yes ® No • Don't Know ❑ Yes ® No • Don't Know Gray wolf habitat? 0 Yes ■:21 No • Don't Know • Yes ® No • Don't Know Grizzly bear habitat? 0 Yes i■ No • Don't Know • Yes ►'e No • Don't Know Brown pelican night roosts? • Yes ■5 No • Don't Know • Yes ® No • Don't Know Woodland caribou habitat? 0 Yes _1 No • Don't Know • Yes ►_+ No • Don't Know A mature coniferous or mixed fixed forest stand? • Yes ® No • Don't Know ■Yes El No ■Don't Know Will any construction work occur within 300 feet of Puget Sound, Strait of Juan or the Pacific Ocean? 5 . Will any construction work occur within 300 feet of any permanent or intermittent waterbody, which supports or drains into a listed fish supporting waterbody? 6 . Will any construction work occur within 300 feet of any wetland, pond, or lake that connected to any permanent or intermittent waterbody? 7. Does the action have the potential to directly or indirectly impact designated critical habitat for salmonids (including adjacent riparian zones)? Stormwater Will this project's proposed stormwater treatment facility be consistent with the guidelines provided by either WSDOT's 2004 HRM, DOE's western or eastern Washington stormwater manuals, or a local agency equivalent manual? Construction Activities 9. Will any construction waste materials (e.g., asphalt or concrete grindings or byproducts, construction- related chemicals, fill materials, or excavated materials) from the disposed of at a location other than a permitted disposal site? 10. Will the project involve any in -water work? 11. Will the project effect the water regime of, or utilize any water from a waterbody, supports or drains into a listed fish supporting waterbody; or any wetland, pond, 12. Will construction work occur outside the existing pavement? If Yes, go to 12a. Will construction activities occurring outside the existing pavement involve clearing, grading, filling, or modifications of vegetation or tree cutting? de Fuca, • Yes .I No ■�, Yes • No • Don't Know is Yes 0 No • Don't Know • Yes ® No • Don't Know ® Yes • No • Yes ® No • Don't Know project be ■ Yes ►ii No • Don't Know which ■Yes ►�� No ■Don't Know lake? or �4 Yes • No �_ Yes ❑ No DOT Form 140 -100 EF Revised 112007 Page 6 of 7 Determination If all the above questions were marked No (with the exception of Question 8a), or if any of the above items were checked Yes or Don't know, but an adequate justification has been provided to support a no effect determination, then check No Effect. If any of the above items were checked Yes or Don't Know (with the exception of Question 8a.), a biologist is required to conduct a review and evaluate the project; complete the section 7 consultation process per section 24.7 of the LAG manual. Note: If a biologist is required to conduct a review and evaluate the project, this does not preclude a no effect determination. ❑ No Effect ❑ NLTAA Date of Concurrence ❑ LTAA Date BO Issued Date of First 6 Mo. Update Essential Fish Habitat Determination: ❑ No Effect ❑ Adverse Effect. Date of NOAA Concurrence NOAA Fisheries USFWS Analysis for No Effects Determination (Required if any item In Section 5 was checked Yes). Please see attached No Effects Letter Part 6 FHWA Comments Use Supplement Sheet if additional space is required to complete this section. DOT Form 140 -100 EF Revised 1/2007 Page 7 of 7 Environmental Classification Summary 1 -405, SR 181 and SR 167 Ramp and Safety Improvement Project Items not contained within the ECS form, but required to complete the SEPA checklist per the NEPA Categorical Exclusions Implementing Agreement (June, 1996) between Washington State Department of Transportation and the Washington State Department of Ecology, Section III [2(c)]: i. Proposed timing of project This project is expected to begin construction in July 2007 and conclude by June 2010 . ii. List of future additions, expansions, or further activity related to the project This project was included within the Selected Alternative as described in the 1 -405 Corridor Program Final EIS and Record of Decision (October 2002). There are future phases planned beyond this project to achieve the full build out of the Program. The next known phase is the Tukwila to Renton Improvement Project, Phase 2, which is currently going through NEPAJSEPA review. iii. List any environmental information that has been prepared, or will he prepared that relates to this project Attached to this ESC packet is a memo from WSDOT Cultural Resources staff documenting that the project will have no potential to effect historic properties (March 8, 2007) and also a memo from WSDOT Biology staff documenting the project will have No Effect on endangered species (March 7, 2007). iv. Give complete project description, and location information, including zoning classification of site This Project will widen three existing ramps along 1 -405, two ramps at the SR 181 interchange and one ramp at the SR 167 interchange. These improvements address both safety and traffic operations. The ramp improvements at the SR 181 interchange will widen the off - ramp from. northbound I -405 to SR 181. In addition, improvements at the SR 181 interchange will widen the on -ramp from SR 181 to northbound 1-405. New ramp meter equipment and a signal cabinet will be installed at the on -ramp. There will be a slight increase in capacity as the new configuration will have two metered general- purpose lanes and an HOV bypass shoulder. The existing configuration has one general - purpose lane and an HOV bypass lane. A new traffic signal with a dual protected left turn arrow will be added to SR 1 at the intersection with the 1 -405 ramp termini. - 1- The ramp improvement at the SR 167 interchange will widen the on- ramp from southbound SR 167 to southbound 1 -405. New ramp meter equipment and a signal cabinet will also be installed. There will be a slight increase in capacity as the new configuration will have two metered general - purpose lanes and an HOV bypass lane. The existing configuration only has a general - purpose lane. These improvements add a total of 23,523 square feet of impervious surface. The Highway Runoff Manual will be followed to provide detention and treatment for the new impervious surface. Water quantity detention will be provided by constructing a new detention pond within the southwest quadrant of the SR 181 interchange and modifying the detention pond on the south side of I-405 at milepost 1.90. Water quality treatment will be provided through the construction of new ecology embankments. The Project occurs entirely within existing WSDOT right -of -way. Therefore, there are no zoning issues. v, Earth: give approximate slope of site, soil type, source of fill material, percent of increase impervious surfaces, erosion potential, and measures to reduce erosion. The project area at SR 181 slopes approximately 6.0% and the project area at SR 167 slope is generally flat. Both project areas are contained within fill material. The new source of fill material will be either native material available on site or clean imported fill. The new fill will be free of deleterious material, wood, roots, bark or other extraneous material. The existing project area has 93,947 square feet of impervious surface. The proposed project will add 23,523 square feet square feet of impervious surface for an increase of approximately 25% in impervious surfaces. This project has some potential for erosion, in particular at the SR 181 area. The project will follow standard BMP's. Below is a list of BMP's the project will follow: a Develop and implement a temporary erosion and sediment control plan for clearing, vegetation removal, grading, ditching, filling, embankment compaction, or excavation. The BM.Ps in the plan will be used to control sediment input from all vegetation or ground- disturbance activities. • Use effective erosion control measures, such as filter -fabric fence, straw mulch, straw bales, and plastic sheeting to prevent silt and soil from entering surface waters (including wetlands). • Hydroseed bare soil areas following grading per environmental regulations. • Clearly label streams and stream buffers on the construction plans and in the field. - 7- • Mark clearing limits with orange barrier fencing wherever clearing is proposed in or near critical areas. • Locate staging areas and equipment storage areas away from sensitive areas (e.g., streams and wetlands). • Identify and develop staging areas for equipment repair and maintenance away from all drainage courses. WSDOT will require that washout from concrete trucks not be dumped into storm drains or onto soil or pavement that carries stormwater runoff. Thinners and solvents will not be used to wash oil, grease, or similar substances from heavy machinery or machine parts. WSDOT will designate a washdown area for equipment and concrete trucks. • Contain excavated sediment in tanks, or other appropriate containers, to avoid discharge to surface water, and transport the contained sediments to an approved disposal site. This Project will also be constructed under the provisions of NPDES permit #WAR- 006736, issued for the 1- 405,1 -5 to SR 169 Widening Project. vi. Water: List and describe any impacts to lakes or other surface waters not included in the ECS form. List any proposed surface or ground water withdrawals, diversions or discharges. There are no other water bodies affected by the project, that are not listed in the ECS. The project at SR 181 will discharge through an existing culvert into a wetland referred to as the Nelson Side Channel. The Project at SR 167 will discharge into Springbrook Creek through an outfall built for the 1- 405,1 -5 to SR 169 Widening Project. Environmental Classification Summary I -405, SR 181 and SR 167 Ramp and Safety Improvement Project Noise Effect Determination: The I-405 Renton Nickel Improvement Project EA identified three receptors near the project areas. At SR 181, the EA identified the Interurban Trail and the Green River Trial. At the SR 167 Interchange, the EA identified a residence at SW 13th. This project will not impact these receptors. Al Wash: Washington State rnent of Transportation March 8, 2007 Jason McKinney Project Environmental Manager 1 -405 Project Team 600 -108 AVE NE, STE 405 Bellevue, WA 98004 Tel (425) 456 -8562 RE: I -405, I -5 to SR 169 Ramp /Safety Improvement Project Dear Jason: Based on a thorough review of the project description for SR 405 /SR 169 and SR 405 /SR 181 intersection work areas, and of aerial photographs, topographic maps, and a cross - section profile of the SR 405 /SR 181 work area, it is my professional opinion that this project has no potential to effect historic properties. This project meets criteria for an exemption from cultural resources assessment under Exemption B -2 under the Statewide Programmatic Agreement working final draft of 2007 to be signed by the Federal Highway Administration, the Washington State Department of Transportation, the Washington State Historic Preservation Officer, and the Advisory Council on Historic Preservation. This project thus may proceed without regard to cultural resources. Project Description Northwest Washington Division Urban Corridors Office 401 Second Avenue South, Suite 560 Seattle, WA 98104 206 - 464 -1221 /Fax 206 - 464 -1189 www.wsdot.wa.gov This project will widen three existing ramps along 1 -405, two ramps at the SR 181 interchange and one ramp at the SR 167 interchange. These improvements address both safety and traffic operations. The ramp improvements at the SR 181 interchange will widen the off -ramp from northbound 1 -405 to SR 181. In addition, the on -ramp from SR. 181 to northbound I -405 will be widened to accommodate an. HOV bypass, and ramp meter equipment. A new traffic signal with a dual protected left turn arrow will be added to SR 181. The ramp improvement at the SR 167 interchange will widen the on -ramp from southbound SR 167 to southbound 1 -405. New ramp meter equipment and a signal cabinet will also be installed. There will be a slight increase in capacity as the new configuration will have two metered general - purpose lanes and a HOV bypass lane. The existing configuration only has a general- purpose lane. These improvements add a total of 23,523 square feet of impervious surface. The Highway Runoff Manual will be followed to provide detention and treatment for the new impervious surface. Water quantity detention will be provided by constructing a new detention pond within the southwest quadrant of the SR 181 interchange and modifying the detention pond on the south side of I -405 at milepost 1.90. Water quality treatment will be provided through the construction of new ecology embankments. Lastly, a new retaining wall will be built along the outside edge of the SR 181 off -ramp, south - southeast of the proposed new detention pond. Project Ground Disturbance and Potential Effects to Buried Historic Properties All ramp widening improvements involve removal of sod that covers previously placed imported fill and placement of new imported fill. No cutting of substrate below existing fill is planned. The relative elevations shown on the topographic maps and the cross - section profile for the SR 405 /SR 181 off -ramp indicate that both basal elevations for the proposed detention pond and retaining wall will remain within previously placed imported fill. No excavation to an elevation below fill and within native substrate is planned. No native soil or substrate will be encountered by the proposed project. Thus the project has NO potential to effect historic properties. Pleas let me know if you require additional information from me. Thanks. Sincerely, Kenneth E. Juell Cultural Resources Specialist Urban Corridors Office 401 Second Avenue South, Suite 400, TB85 -95 Seattle, WA 98104 cc. Allison Ray, WSDOT Sandie Turner, WSDOT Sharon Love, FHWA Figure 1, SR 167 Ramp Pavement Area, Cultural Resources Memo, 3/08/07 1 ....I j i . I ' it U.. • ...'' ••.....t , ' - , '"' .. ' ••' . r. , ri ft • -- - ..) tr., ...„2 .4 - .. - .. ... • , ;; - ._.,....,•,• • -• , rA ' ', - -°---;:::.. i3:•';`a.,.." ' - ••:,• ..• •,, ; .....,...„,....— • ,. t , I , . :: is,-.'" -4 -., ,.,. ... - ' 4-1 .tif i,..0!,1, . • , . •-,.:- .1, . rt ii 4 ''' 'cl, . / - L i i , ...-:......„ • - L.3 Zz..t,.. __ „ ......,___.,.. . 'r 4 :7 - <-4,,, t 'r •• rr_1., -•—. . 4,.,.../„. ,-;r ±,-'"•* • ' .4 • i t 14 '; R.WR H''''' .. ; t r , , t •,' ,., t ,,,i--%=.; ..''''''.._, --"'-:-- T.' .$,?',..' ! 11 - 7 ,f 1 li • i', ' i — ., •Y t• i t, ; . ; i t " ' r:' -,-‘-'- -:' ,,, g • 1' 4 i : . : . 1 t rr I' + :,... i:. . r.:•:•F• -• Figure 2, SR 181 Ramps Pavement Area, Cultural Resource Memo, 3/08/07 I .1 I , I r ' •:,•■ - ,""" '•= ' Figure 3, Wall Location, Cultural Resource Memo, 3/08/07 20 0 ;0 2 1 -405 tfc5VO4/ leTW Figure 4, Profile of Excavation, Cultural Resource Memo, 3/08/07 43 405-S8181 EXISTI40 G80080 0 50 100 St ALE IN FELT ONWU EL i4.0 FT 16,04 31. t L,L1 iL± 1.ILL tNAVDt 88 :o 0 158E5E01 158811/E03 ME SIOE CH4k8EL "7 r 3,-- ---•-■ in ifEMSE1K I -- - t 1 r Figure 3, Wall Location, Cultural Resource Memo, 3/08/07 20 0 ;0 2 1 -405 tfc5VO4/ leTW Figure 4, Profile of Excavation, Cultural Resource Memo, 3/08/07 43 405-S8181 EXISTI40 G80080 0 50 100 St ALE IN FELT ONWU EL i4.0 FT 16,04 31. t L,L1 iL± 1.ILL tNAVDt 88 :o 0 /24/2 (109) Carol Lumb - Re: L06 -040 POT 1 -405 Renton Nickel Project - Memo - Temporary Buffer Impacts at Gilliiitang@ From: To: Date: Subject: Impacts at Gilliam Creek.p CC: Hi Alicia: If you have any questions, please let me know. Alicia, Thanks, Carol Lumb Alicia Toney 12/24/2009 11:35 AM Re: L06 -040 WSDOT I -405 Renton Nickel Project - Memo for Temporary Buffer Jennifer Horwitz; Minnie Dhaliwal; Sandra Whiting Thank you very much for your continued coordination on the environmental aspects of the I -405 as the project has continued to unfold in the field, keeping the City informed as new impacts are identified. I understand from Gary Stendsland's memo and attached drawings provided to WSDOT and from our telephone conversation today that new, temporary impacts of approximately 600 sq. feet have been identified to the Gilliam Creek buffer area adjacent to the I -405 northbound on -ramp from Tukwila Parkway. The temporary impacts will occur in order to move soil amendment to the portion of the site being restored, per mitigation agreed to under L06 -040, Sensitive Areas Ordinance Special Permission permit. We agree that the needed access using steel plates over the grassy area will impact the stream buffer and concur with your proposed mitigation. As noted in your e-mail, you will provided documentation of the "before" and "after" conditions in the impacted area to the City upon completion of the mitigation. Carol »> "Toney, Alicia" <ToneyA @wsdot.wa.00v> 12/24/2009 10:32 AM »> Hi Carol, As we discussed this morning, I'm sending you a memo to request temporary buffer impacts at Gilliam Creek in order to complete buffer enhancement planting. We will initiate this work on January 4, 2010. When the work is complete we will send you documentation that we have left the area in the same condition as existing (grass). We will use use steel plates to protect the ground and seed as needed. Thank you, Alicia Toney WSDOT Environmental Compliance 206 - 718 -9078 From: Gary Stensland Jmailto:gary stensland @pbsenv.com] Sent: Friday, December 18, 2009 9:29 AM To: Toney, Alicia Cc: Jennifer Horwitz; WilliamJordan; iasoncadle @tristatecon.com; jimgleiq @tristatecon.com; Harris, Jonathon; JakeRiley Subject: Permit Revision Memo for Temporary Buffer Impacts at Gilliam Creek.pdf Attached is the request from TSI for temporary buffer impacts at Gilliam Creek associated with accessing the planting area on the east side of the on ramp to NB I -405 from Tukwila Parkway. I would anticipate that the soil amendment and planting work would be completed in approximately 1 to 2 weeks. TSI's subcontractor OMA would like to commence work on Monday January 4th, 2010 if agency approval is received. If you have any questions, comments, or need additional information please let me know. 12/24/2009 Carol Lumb - Re: L06 -040 SDOT 1 -405 Renton Nickel Pro ect - Memo tor t em ora butter Im acts at GiUI r� Gary * ** eSafel scanned this email for malicious content * ** * ** IMPORTANT: Do not open attachments from unrecognized senders * ** Carol Lumb, AICP Dept. of Community Development City of Tukwila 6300 Southcenter Blvd., Suite 100 Tukwila, WA 98188 206- 431 -3661 (Fax: 206 -431 -3665) clumb @ci.tukwila.wa.us PBS Attachments: Engineering + Environmental MEMORANDUM DATE: December 18, 2009 TO: WSDOT FROM: Gary Stensland Environmental Compliance Manager, TSI PROJECT: 1-405:1-5 to SR 167 Stage 1 - Widening PROJECT NO: 40778.000 RE: Permit Revision Request for Temporary Stream Buffer Impact to Access Gilliam Creek Buffer Enhancement Planting Area Tri -State Construction, Inc. (TSI) has identified that there are access issues to completing the Gilliam Creek buffer enhancement planting work on the east side of the Tukwila on -ramp to NB 1 -405 within the identified limits of work for the project. TSI requests that WSDOT submit a request to the MAP Team for additional temporary stream buffer impacts to Gilliam Creek to provide access across the Seattle Public Utilities (SPU) right of way to the buffer enhancement planting area from Tukwila. Attached are a marked -up landscape plan sheet (LS2) and JARPA plan sheet showing the access area needed to perform the stream buffer enhancement work. The additional area of temporary buffer impact is approximately 600 square feet. The area of temporary impact is currently mowed grass associated with the SPU underground water line. TSI is proposing to place steel sheets on the ground to protect the buried SPU water line and the grass vegetation between Tukwila Parkway and the stream buffer enhancement planting area. The existing grass roadside vegetation will be temporarily impacted and the area disturbed will be hydro- seeded with native seed mix following the completion of the stream buffer enhancement planting work and removal of the steel sheet. Revised Landscape Plan Sheet LS2 Revised JARPA Plan Sheet 3 of 27 • • WSDOT December 18, 2009 Page 1 of 1 WARM MAMA) 00RRiY =Vara 070006 Rao 06484 1 0 G ; \'\\\ \\� \\ \ \ \\\\ \\ \ \ \ \\ 0 \ \\ \'0 MO LOP PS SI ' ,c.c . 0 0 7 61818007 23 8 7 • 0 .1.r 7 1 005201 API a 01 11 7 4037032 RE0074 MARC. 00001 704 a a a 1 a a u S MOM 0404.40 COMM 1111.08 a a N 0 0110 MAW a 3 a 0 136 OR 2)000 OP PUN MP REOOWD2 004.22040 a IS 74 1 014 0.05100117 a a a 1 6494? 164 a a N 1 4F000 MC 067M ONO 14.0 Rom 1110010 Pao) 44707S (I7704 000 001001987 10 41 20 a 131 4118 6061087 (Cr) 24 47 a Al 0. OR MOO 0V 14104 F» 2.7 *4 L L 4070• eww PAP= =Vara alas 041 PAWN It 6 1406 RD14, roc 137 0 m 8 RED 4GNDEO 01.1111107 137 8 raw 148 137 8 M9 000021311170 737 0 /8100603 14060 0107 wine WED 600 118 1410010 14 0000 SOL 30B0107 (C0 212 0 08 007007 1M ALL 136 OR 2)000 OP PUN MP L 79 s LEGEND Au 44* . 2016.74.0 108rr OM/ /ir/Jiiiiiri /i7c 0007 P 147 14240210 KIM WRNS 10004, -J 4200940 00.11011017 70080 N6u !1111411 MR MANE Tae DATE ft N. 11 i 19238 PN 4asm00 PLOTTED BY 811041 DESIGNED BY E. BOWERS EMTEIIED BY F. ELGHARABLI =BOZO BY F GROO:MK PROA MGR. L. HODGSON REGIONAL ADEL DAM 9-- 161661110 0907 ARP 14 1413 7.01867101 •1001A10810 ARE0 14 WWII 00x1, 0067 LOPORTLAN0140000W77RJ471 11 TO 107 8acp 110W01BTJV0002_PS LB 406400 7130 = ,,_-- - , ►,,.,/ 7� . -•- -•-•- •-• --• . .................. .........•lac • ••••• L. % f . 137 0606 4,0 Pe 11001. REP ‚"/1 10710 01427 67720 0® 2073 114 7600000 pay 1 000010 08 OR2' 062110 a® 00 01001 RE0 040•0 pv 6013 SEED PC AID MONO pay f00 08N01Eir7 70» DATE BY 10 WASH Nyialta 00.1100 10 T. 23 N., R. 4 E., W.M. Ac cess 4n44q Afea Meal 1 01801. REY a was 137828 1001003 0 0 0 0616 742 0.004211160 CW1VR um I IO D 12.0000/4322 SD1r9 W 7,04, r04, 400D or/ 407714 QED 100 AI0 1014814 0018) *06 307077 07» 44.0 0020027 R'ri am a 1044 04 14404 (CO 0711770 A 0 is A 10 ra 143 ra 223 1 a 11 02 1 7D 07 04 FEDJUD PROJ.NO. o ' x 30' .u. SUFFER PAP 001101I0 • Pa 884,7 0117 OD— : gip 4- 5 «m rn (('Ii L 6405F0 48001407 020074, 00411101. 414 MP 172806 Rag 46 1010112 301130008117 EROPON Carina MED 0:400072.12007 110 00000 pay 0311100 011 00 -3- Corridor Program m' 12 EILRNGER . 1'G!1 T(j; �Oiw4.•°r•=a 1 { ®� 11I.$rA'r4co,.TR4CooN. 160 DATE: DESIGN PACKAGE 405 4406 1.6 TO 8R169 STAGE 1 - WIDENING LANDSCAPE PLAN MAY 2 2 2008 ISSUED FOR CONSTRUCTION H e a /8 SCALE 34 FEET STATE OF WASHINGTON REGISTERED DSG1P! FRANK CEKMGTION NO. 721 Plot 2 LS2 14102afze Tema Pe= /11d%J a• Tam Rem 09.GR -0.2 0 0 0 Batr Buffer 0.41. 0.01 0.08 0 0.05 0.21 0.51 0 0.05 0 0 0 Maw Tama R rat Wiwi Tam 52ofbr Perm Bate 09.GR -0.2 0 0 0 -3974 10441 • I (Stream 09.GC-0.4) 1 S ▪ • ▪ ♦ rNC.44 4 & Y 1 ~ ♦` o d _ .•4a: • \• " - • 0.40 . (IRAQ, r` t. .. o ... • WETLAND IMPACTS STREAM IMPACTS Cottage Creek Wetland 0.4L clURPOSE: Roadway Improvements z 1 4,57 Y . ' V 7 't Gilliam Creek (Stream 09.GR -0.2) /NTfQSTKT /.405 N.p. TUKWILA PKY 17 y Sir B u fie r (ooSf 1-408,1-5 to SR169 8m SR167, 4408 to 8W 41ST ST REFERENCES: 200600 APPLICANT: WSDOT PERMIT DRAWINGS Wetland 0.5L PROPO8EDIRETAIN: 1.7 acres of Impacts to wetlands and other waters of the U.& IN: Streams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4/28/08 �w : 180 • . d X 1g 0 .50 C14 1 • • Legend .\ 1 T Unswayed Vlktlanda ® Proposed Stonnwaler Paid Prapased Storm Dram Proposed RIghtY •••■.■■•• Eg R y Eaaemsnt We u? r Biting Dramege Culvert IN- WM ID cr Piped Stream Culvert nth ID and diredlan of flow —• Flow Arrow ® Eooiogy Embankment Crass Section Location v .9 drown on D Sheet Cross S%dion direction 1 -� on 0eta0 Sheet Ditch Talent Ditch Open Channel Stream t.Imlla of Work ExtstIng Storm Wets Writing Storm ManMka edetlng Grate elder Proposed Wall ..- .•--+- Underdrain Emoting Edge of Impervious Surface Proper Edge 01 tmpeMoua Suafaae - n, ti, . cut Lne .a. —.�.._ FBI Line Erdatmg Guardrail Permanent Wetland Impact Temp. Welland Impact Rammed Stream Impact • Stream and Worland • Buffer TeptP-5NNcam 8 "At t NoOac all legend elements are C farad on every sheet Wtldn this - 1 1P drawing set KEY PLAN + l HORIZONTAL DATUM NAD 8341 VERTICAL DATUM: NAVD 88 SHEET 3 OF 27 100 Feet 200 Carol Lumb - Planting Renton Nickel Stage 1 From: Jennifer Horwitz To: 'Carol Lumb' Date: 06/03/2009 1:02 PM Subject: Planting Renton Nickel Stage 1 CC: "'Toney, Alicia "' Hi Carol, • Let me know if you have any questions or need additional information. —jlh Jennifer Horwitz Environmental Support Services Manager I -405 Project Team jennifer.horwitz@i405.wsdot.wa.gov 425.456.8523 (desk) 206.902.8002 (cell) • Page 1 of 1 41 2N, t, fkiZ Gu& ` 1,41 - S o plat/40y 0,,-e_ fucea W tux When we spoke a few weeks ago, you asked what the planting schedule is for the 1-405 Renton Nickel project. Right now, some is scheduled for June 29, with more to follow on July 7. If you'd like to arrange for a site visit, please contact Alicia Toney (Environmental Compliance Assurance Inspector) directly. The best number to reach her is 206.718.9078. This e-mail and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are NOT the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be advised that you have received this e-mail in error and that any use, dissemination, forwarding, printing or copying this e-mail is strictly prohibited. file : / /C:\ temp\ XPgrnwise\ 4A267456tuk- mail6300 -no 100136616211 CC551 \GW 1 00001.... 06/09/2009 E(02/24/2009) Carol Lumb - RE: l-405 Re in Nickel Shoreline Zone - -Re uest for Min From: Carol Lumb To: Jennifer Horwitz Date: 02/24/2009 5:57 PM Subject: RE: I -405, Renton Nickel Shoreline Zone -- Request for Minor Modification to L06 -037 Hi Jennifer: Thank you for the explanation. We have reviewed the material you provided and determined that the additional permanent disturbance of six square feet is a minor modification to the original shoreline substantial development permit issued for this project. Please let me know if you have any questions. Thank you for keeping us informed about changes to the project as it proceed. Carol Carol Lumb, Senior Planner Dept. of Community Development City of Tukwila 6300 Southcenter Blvd., Suite 100 Tukwila, WA 98188 206 - 431 -3661 (Fax: 206 - 431 -3665) clumb @ci.tukwila.wa.us »> Jennifer Horwitz <Jennifer. Horwitz- consultant@i405.wsdot.wa.gov> 02/24/2009 5:48 PM »> Hi Carol, Thanks for getting back to me so quickly. A new catch basin (CB) and associated piping are shown on the drainage plan sheet DR3 as structure # DR3 -16 and they collect stormwater from the shoulder of the off -ramp to SR 181 which is designed to be connected to the existing storm drain with another new CB (structure # DR3 -24). The new CB and piping (structure #DR3 -16) are located within the original area of impact identified on the permits. The new CB (structure #DR3 -24) is located outside of and adjacent to the existing impact line and that is the additional area of disturbance /impact requested. The new CB (structure #DR3 -24) will have a permanent impact of 6 SQ FT and a temporary impact of 90 SQ FT to install the CB. No new piping will be installed beyond the new CB (structure #DR3- 24);CB structure DR3 -24 will connect into the existing storm drain outfall. Please let me know if you have any other questions. Jennifer Horwitz Environmental Support Services Manager I-405 Project Team iennifer.horwitz@i405.wsdot.wa.gov 425.456.8523 (desk) 206.902.8002 (cell) Original Message From: Carol Lumb fmailto:clumb @ci.tukwila.wa.usl Sent: Tuesday, February 24, 2009 2:55 PM To: Jennifer Horwitz Subject: Re: I -405, Renton Nickel Shoreline Zone -- Request for Minor Modification to L06 -037 Jennifer: odification to L06 - 037 Page 1 thank you for your e-mail and the attachments. One question for you - where is the drainage pipe located that is conveying 02/24/2009 Carol Lumb - RE: 1-405, Re. •n Nickel Shoreline Zone-- Re •uest for Min • odification to L06 -037 Page 2 the storm water to the catch basin? I'm assuming that installation of the pipe is part of the temporary impacts to the shoreline. Carol Carol Lumb, Senior Planner Dept. of Community Development City of Tukwila 6300 Southcenter Blvd., Suite 100 Tukwila, WA 98188 206 - 431 -3661 (Fax: 206 - 431 -3665) clumb @ci.tukwila.wa.us »> Jennifer Horwitz < Jennifer. Horwitz - consultant @i405.wsdot.wa.gov> 02/20/2009 9:52 AM »> Hi Carol, This message is a follow -up to a voice message I left for you yesterday. The design -build contractor for the Renton Nickel Improvement Project has finalized the drainage design for the project. We have identified a small amount of additional unavoidable impacts within the 200 -foot Green River Shoreline Zone, but outside of the 100 -foot stream buffer, associated with installation of a catch basin on the southeast side of the Green River Bridge along the south side of the SR 181 off -ramp from northbound I -405. There will be 90 square feet of additional temporary impacts and 6 square feet of permanent impacts. After the work is complete, we will hydro -seed the area of temporary impacts with erosion control seed mix. Please see the attached memo and maps for more details about this drainage feature. We are requesting a minor modification to the Shoreline Substantial Development Permit (L06 -037) issued by the City of Tukwila to cover these unavoidable impacts. Please let me know if you need additional information or if you have any questions. Thank you for your help with this. Jennifer Horwitz Environmental Support Services Manager I -405 Project Team ien n ifer. horwitz@i405.wsdot.wa.gov 425.456.8523 (desk) 206.902.8002 (cell) This e -mail and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are NOT the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be advised that you have received this e-mail in error and that any use, dissemination, forwarding, printing or copying this e-mail is strictly prohibited. • Page 1 of 1 !4Pw - 04) Carol Lumb - I -405, Renton Nickel Shoreline Zone -- Request for Minor Modification to L06 -037 From: To: Date: Subject: CC: Attachments: Hi Carol, Jennifer Horwitz 'Carol Lumb' 02/20/2009 9:57 AM I -405, Renton Nickel Shoreline Zone -- Request for Minor Modification to L06 -037 William Jordan , "'Toney, Alicia "' , Jennifer Horwitz William Jordan , "'Toney, Alicia'" , Jennifer Horwitz This message is a follow -up to a voice message I left for you yesterday. The design -build contractor for the Renton Nickel Improvement Project has finalized the drainage design for the project. We have identified a small amount of additional unavoidable impacts within the 200 -foot Green River Shoreline Zone, but outside of the 100 -foot stream buffer, associated with installation of a catch basin on the southeast side of the Green River Bridge along the south side of the SR 181 off -ramp from northbound 1 -405. There will be 90 square feet of additional temporary impacts and 6 square feet of permanent impacts. After the work is complete, we will hydro -seed the area of temporary impacts with erosion control seed mix. Please see the attached memo and maps for more details about this drainage feature. We are requesting a minor modification to the Shoreline Substantial Development Permit (L06 -037) issued by the City of Tukwila to cover these unavoidable impacts. Please let me know if you need additional information or if you have any questions. Thank you for your help with this. Jennifer Horwitz Environmental Support Services Manager 1-405 Project Team jennifer.horwitz@i405.wsdot.wa.gov 425.456.8523 (desk) 206.902.8002 (cell) This e-mail and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are NOT the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be advised that you have received this e-mail in error and that any use, dissemination, forwarding, printing or copying this e-mail is strictly prohibited. file : / /C:\ temp \ XPgrpwise \499E7E6Dtuk- mail6300 -po 100136616211 B7F91 \GW } 00001.... 02/20/2009 PBS Engineering + Environmental • • MEMORANDUM DATE: February 20, 2009 TO: WSDOT FROM: Gary Stensland Environmental Compliance Manager, TSI PROJECT: 1 -405: 1 -5 to SR 167 Stage 1 - Widening PROJECT NO: 40778.000 RE: Permit Revision Request for Revised Drainage Structure Impacts to Green River Shoreline Zone Tri -State Construction, Inc. (TSI) has identified that there are additional unavoidable minor impacts within the 200 - foot Green River Shoreline Zone based on the final drainage design. The original identification of potential project impacts by WSDOT, when they completed the Joint Aquatic Resource Permit Application (JARPA), was based on a conceptual level design (15 %). TSI requests that WSDOT submit a request for a minor modification to the City of Tukwila's Shoreline Substantial Development Permit issued for the 1 -405 Improvements through land use file L06 -037. The proposed work along 1 -405 now includes some minor additional disturbance impacts within the 200 -foot Green River Shoreline Zone, but outside of the 100 -foot Green River stream buffer. The additional area of disturbance is associated with the installation of a Type 2-48" catch basin, drainage structure DR3 -24, on the southeast side of the 1 -405 Green River Bridge along the south side of SR 181 off-ramp from northbound 1-405. This work will result in an additional temporary disturbance of approximately 90 square feet to install the structure and a permanent disturbance of 6 square feet within the 200 -foot shoreline zone. See the revised City of Tukwila Shoreline Substantial Development Permit Attachment B and TSI's drainage plan sheet DR3 of the impacts enclosed at the back of this memo. The area to be permanently and temporarily disturbed by the work is adjacent to the shoulder of the off -ramp from northbound 1 -405 to SR 181 and will not require the removal of any trees within the shoreline zone and is located outside of the buffer to the Green River. The existing grass roadside vegetation will be temporarily impacted and the area disturbed will be hydro- seeded with permanent erosion control seed mix. Several options were considered for providing drainage to the roadway in this area during the conceptual design prepared by WSDOT as well as the final drainage design process by TSI. The final drainage design prepared by the TSI team will avoid additional stream buffer impacts and minimize additional impacts within the Green River Shoreline Zone. Enclosures: Revised Shoreline Substantial Development Permit Attachment B Drainage Plan Sheet DR3 WSDOT February 20, 2009 Page 1 of 1 • ` ` --. � , it ' � : %%�. ' / / / • I S. r ' 'd(1 N_0 soa- i-9k"_ u6p'ienpueete POP08000Xdb \sia►\s6ulmeiPWOMBuNseut6ua Md 1 g • • s Cti ss %Rye 1 900Z/E FIE NAME ... -.. TUB 11St3S AE DATE MOOOOi PLOTTED BY m WSW/ZED BY J. BEAIR ENTERED BY B. WHITE CHECKED BY J. TORRIE PROD. EUOR L HOD080N REOIONAL ADSL D. DYE NDO 66 - EEVISIOIS FOR IFC UDC w -MALL MAWS HOC SS . REVISIONS ISSUED AT RISE smaTifsa Corridor Program 4405 1.5 TO SR169 STAGE 1 - WIDENING CONSTRUCTION NOTES 0 a 0 0 0 061617 WALLS OUTSELL PEA ran v:ua Tae C E QM. ammo sm. REaa OA AMMON IMMO CATa1 OWE MOVE an .a"laall 00SEM0 STORK PVC ELl*ai m. Rana) WATCH Sal Oral our FOR Oars WO OCT. V ea 0 DRAINAGE LEGEND QUARRY WALLS DRAINAGE STRUCTURE NUMBER co EO8TIR0 CATCH BASIN EXIST= INUDI01E Alamo STORE DRAM C S= UNDER DRAM &777U& CULVERT =TM DIME ENE WONT OF WAY NEW CATCH BANN NEW ORA7! INLET NEW BTORU CRAM NEW UNDERDRAIN NEW DRCN LDS RETAD0110 TILL TEN ECOLOGY ESANIUEENT BUFFER LME O _' *7 o GENERAL NOTES I LEI MEETS 1 .1.On.8P1;OP'LELm OP'0 FOE 'naafi *50 57570800 aPORWTNW T. 23 N., R. 4 E., W.M. ITIONAL AREA OF IMPACT FOR DRAINAGE WORK WITHIN 200-FT SHORELINE ZONE. 0 SO FT OF TEMPORARY IMPACT D 6 SO FT OF PERMANENT IMPACT. _ . - - F O G �-- ^* '—___- 0-- Y._�_.__^ - r" -' ' �O 0 � /� O I 0 ■ _ 0 s 0 *'° `a ll. A ` ~ -' M• •. / l ` 71 ° u �/ .l l .1 I PASTAN POI PSIS unman CU ?Yc new wTRCWSTRTKTTOgNC 0 0 tourociPil µTD DESIGN PACKAGE 405 DRAINAGE PLAN DATE: 8-07-2.00,2) ISSUED FOR CONSTRUCTION 1 ■ 1 6 o w 7TC SCALE M FEET DRS 0 0 0 0 0 FILE NAME TIME DATE - ADDITIONALTAREKOF IMPACT FO b a R DRAINAGE; WITHI 200-FT >SHORELINE ZONE 90'SQ FT OF'TEMP, IMPACT,; AND 6 SO FT OF:PERMAN IMPACT:: 084R1111 LINE CONSTRUCTION NOTES PLATTED BY did DESIGNED BY ENTERED. BY CHECKED BY QUARRY SPALLB OUWALL PAD. FOR DETAIL SEE DU . EXTEND EJiISnAta RPE. REMOVE OR ABANDON EXLYTING CATCH BASIN. REMOVE OR ABANDON EX16NNE; STORM PIPE ADJUST TO GRADE_ J. BLAIR S. WHITE • J. TORRIE - PROJ. ENGR. I HODG8ON REGIONAL ADM. D. DYE TRETICII SECTION FOA OPEN CUT. FOR DETAIL BEE DDT. • C:WJorMProJOctWI6018TJV000A e01222iBTJV8002,_P8 0R;„405.dtin 11:62:36 AM T/30/2008 NDC 65.- fiEVISIONS•FOR •WC NDC 69 -WALL DRAWS NEC 68 - REVISIONS ISSUED AT 'RISK REVISION • DRAINAGE LEGEND QUARRY $PALLS DRAINAGE STRUCTURE NUMBERED EXISTING CATCH BASIN EXISTING MANHOLE EXISTING STORM DRAIN EXISTING UNDER DRAIN EXISTING CULVERT EXISTING DITCH UNE RIGHT OF WAY ST — UD — NEW CATCH BASIN NEW GRATE INLET NEW STORM DRAIN NEW UNDERDRAIN NOV DITCH UNE RETAINING WALL NEW ECOLOGY EMBANKMENT IMPACT AREA UNE BUFFER UNE .k 16 I OU o '1 ` _ - - - \ -- g0 O 0 1 ) ----- -.-..--- /:3 ' CT -. o O r I --. 0 0 ■ -�; t om •' ? • • 0 � ,� a` �� o. --. \� f `tA. GENERAL NOTES 1. SEE SHEETS OPI,DP7 DP1$DPU.AND DPIO FOR PROFILE AND STRUCTURE INFORMATION. 08101/38 PAST 08118/38 .� T 05190108 3 88T 04ID1108 JMSx DATE BY ft i REOI 1 ' WAIL 10 WASH MS MS= 00111GCI MO. W T 23 N., R. 4 E., FED.AID PROJ.NO. LOCATION NO. 0 • f,�f i'• 1 • 11 . • ii .i � > 7/1 ,pi : I / / 0 0 •,. .,' •I • • �� . .11 ; I. " .If .II PLATO 80X OATS PASTAq 001 y DATW tali .... Stet* Olosammt oftgan•merko GREENNVER Corridor Program ILFIUGiA �B $ EAGEA O a•ASOOmATIM • Mint Iq TRI -STATE CONSTRUCTION. INC. 0 .... " tom DESIGN PACKAGE 405 1-405 1-5 TO SR169 STAGE • 1 - WIDENING DRAINAGE • PLAN unTE • . 8 -07 -2.o0e . ISSUED FOR CONSTRUCTION 0 60 100 SCALE IN FEET a 0 Ptot.3 DR3 MET OF 1 07/11/2008) Carol Lumb - RE: landsca a plan From: To: Date: Subject: CC: Hi Carol, Jennifer Horwitz < jennifer .horwitz @i405.wsdot.wa.gov> 'Carol Lumb' <clumb @ci.tukwila.wa.us> 07/09/2008 12:26 PM RE: landscape plan Jennifer Horwitz < jennifer .horwitz @i405.wsdot.wa.gov> The botancial name for the Tall Oregon Grape will be revised and corrected. The plan sheet incorrectly had the botanical name for Cascade Oregon Grape. As for watering, the contractor is obligated to certain plant survivability, and associated re- planting, over the first three years. This is tied to our ESA consultation. Whether they will water or not will depend on the time of year for the planting and the rainfall in a given period. I hope this helps. - -jlh Jennifer Horwitz Environmental Support Services Manager 1-405 Project Team jenniferhorwitz@i405.wsdot.wa.gov 425.456.8523 (desk) 206 - 902 -8002 (cell) Don't forget: It's crunch time...closures on southbound 1-405 coming in August! Original Message From: Carol Lumb [mailto:clumb @ci.tukwila.wa.us] Sent: Thursday, July 03, 2008 11:17 AM To: Jennifer Horwitz Subject: landscape plan Hi Jennifer: Our in -house landscape person looked over the landscape plans and said they look good. She had comment on the plant material list and notes. The plans call for Tall Oregon Grape but the botanical name listed is incorrect - it should be Mahonia aquifolium. We also wondered if WSDOT or the contractor will be watering the plants to make sure they get established and whether there is a maintenance plan for the first year or two? Thanks. Have a great holiday weekend. Carol This e-mail and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are NOT the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be advised that you have received this e -mail in error and that any use, dissemination, forwarding, printing or copying this e-mail is strictly prohibited. Pag P s Enclosures: Engineering + Environmental • • MEMORANDUM DATE: June 11, 2008 TO: WSDOT FROM: Gary Stensland ZO Environmental Compliance Manager, BTJV PROJECT: 1 -405: 1 -5 to SR 167 Stage 1 - Widening PROJECT NO: 40778.000 RE: Permit Revision Request for Revised Stream Buffer Impacts to Green River The existing permits for the 1 -405, 1 -5 to SR 169 Stage 1 — Widening project include 1,245 square feet of permanent impact and 395 square feet of temporary buffer impact to the Green River and 867 square feet of new pavement and impacts to 6,556 square feet of area within the shoreline zone. During design it has been identified by the Bilfinger/Tri -State Joint Venture (BTJV) that there are unavoidable additional impacts to the Green River stream buffer based on the advancement of the design. The original identification of potential project impacts by WSDOT when they completed the Joint Aquatic Resource Permit Application (JARPA) were based on a conceptual level design (15 %). The proposed work along 1 -405 now includes some minor additional temporary and permanent stream buffer impacts associated with the installation of an additional luminaire, junction box, and conduit on the northeast side of the 1 -405 Green River Bridge along the northwest side of SR 181 on -ramp to southbound 1 -405. This work will result in an additional 400 square feet of temporary buffer impact and 15 square feet of permanent buffer impact to the Green River and an additional disturbance of 1,600 square feet within the 200 -foot shoreline zone. See the revised JARPA plan sheet 7 of 27, revised City of Tukwila Shoreline Substantial Development Permit Exhibit B and the BTJV's Impact Exhibit A plan sheet of the impacts enclosed at the back of this memo. The area to be permanently and temporarily disturbed by the work is adjacent to the shoulder of the on -ramp from SR 181 to southbound 1-405 and will not require the removal of any trees (> 6" diameter at brea t height) within the stream buffer or shoreline zone. The existing grass and shrubs will be temporarily impacted nd the area disturbed will be replanted with native vegetation; identified on the Landscape Plan sheets for the o her areas of Green River stream buffer temporarily disturbed on the project. t' (A I , < " Several options were considered for providing illumination to the roadway in this area during the conceptual design prepared by WSDOT as well as the final design process by the BTJV. The final design prepared by the BTJV team will minimize permanent stream buffer impacts, from those included in the JARPA, and will result in a reduction in permanent impact to the stream buffer; which will off -set these minor permanent and temporary impacts to the buffer associated with the additional illumination work. Revised JARPA Plan Sheet 7 of 27 Revised Shoreline Substantial Development Permit Exhibit B Impact Exhibit A WSDOT June 11, 2008 Page 1 of 1 „ NI LINE . 1,1*— • - - ISSUED FOR CONSTRUCTION FIE NAME CONNYIPENNSONABBTABOOMBANNECOBTAVDDIELPILEOWTAAn TIME 117AN PO DATE inumos PLOTTED BY _ OESICOCED DY ra. OHLSTRON ENTERED BY D. FRAKKUN =WEED or J. ST. JOHN PROA ENOR. L HODGSON REGIONAL NHL D. DYE DATE — BY 1.00/40111 0. MIN 110 01.11 lits.murAltimex _ _ TIU4TATE CONSTRUCTION, INC 1-405 1-5 TO SR1139 STAGE 1 - WIDENING IMPACT EXHIBIT A Corridor Program Congestion Relief & Bus Rapid Transit Projects June 18, 2008 Carol Lumb, AICP Senior Planner City of Tukwila, Department of Community Development 6300 Southcenter Boulevard, Suite 100 Tukwila, Washington 98188 -2544 Re: 1-405, 1-5 to SR 169, Renton Nickel Improvement Project Permit Revision Request for Revised Buffer Impacts to the Green River Buffer Dear Ms. Lumb: The Washington State Department of Transportation (WSDOT) applied for and obtained permits for unavoidable impacts to waters /wetlands for the I -405, I -5 to SR 169, Renton Nickel Improvement Project (Renton Nickel Project) in late 2006 and early 2007. The purpose of this letter is to request a permit revision for additional unavoidable impacts, 400 square feet of temporary impact and 15 square feet of permanent impact, to the Green River Stream Buffer. A separate attachment is included to document and quantify additional proposed impacts to the Green River Stream Buffer resources and to describe construction activities that will impact the resources. The WSDOT I -405 Project Office is requesting that the permit listed below for the Renton Nickel Project be amended or modified to reflect these new impacts: • Shoreline Substantial Development Permit No. L06 -037; issued on November 26, 2006 Please see separately attached memo and drawings for the proposed additional impact and description of construction activities. Washington State e � Department of Transportation REC EIVED JUN 19 COMMUNITY DEVELOPMENT 600 — 108 Avenue, NE, Suite 405 Bellevue, WA 98004 Main 425 -456 -8500 Fax 425 -456 -8600 • • Thank you for your willingness to work with our project team on the permitting issues unique to this project. Please contact Alicia Toney by e -mail at toneya@wsdot.wa.gov or by phone at (206) 718 -9078. IAN141744t IA.Tivigho1/4) 2, — 1 - 1 5 1 tg on COI% UCO 1a °ector — Environmental Services Appendices Appendix 1— Permit Revision Request with Revised JARPA Plan Sheet 7 of 27 cc (with attachment): William H. Jordan, I -405 Project Environmental Manager Lisa Hodgson, Project Engineer Jennifer Horwitz, Environmental Support Services Manager Allison Hanson, UCO Environmental Services Director Washington State �� Department of Transportation 2 • (07/02/2008) Carol Lumb Re: Buffer Im From: To: Date: Subject: Hi Jennifer: Thank you for the drawings - particularly the Illumination Plan, which makes it much clearer where the light and junction box will be located. I will work on a revision to the permit and hopefully have something out next week. I reviewed the Notice of Decision for the Special Permission Director permit and unfortunately it looks like Condition 3 just requires that a copy of the landscape plan for the proposed under -story plantings along Gilliam Creek and the wetland buffer plantings be provided prior to the start of construction. It doesn't say anything about being able to approve the plan. We'll review the proposed plantings and I'll let you know if there are any that we have concerns about. Thanks. carol Carol Lumb, Senior Planner Dept. of Community Development City of Tukwila 6300 Southcenter Blvd., Suite 100 Tukwila, WA 98188 206 -431 -3661 (Fax: 206 -431 -3665) »> Jennifer Horwitz < iennifer .horwitzCa1i405.wsdot.wa.00v> 07/02/2008 3:24 PM »> Hi Carol, Per our conversation, here are the drawings that show the location of the permanent buffer impacts. Let me know if you have any other questions. Thanks for your help, - -jlh Jennifer Horwitz Environmental Support Services Manager I -405 Project Team jen nifer. horwitzCa1 i405.wsdot.wa.gov 425.456.8523 (desk) 206- 902 -8002 (cell) Jennifer, Carol Lumb Jennifer Horwitz 07/02/2008 5:02 PM Re: Buffer Impacts Green River (L06 -040) Don't forget: It's crunch time...closures on southbound I-405 coming in August! <httD: / /www.wsdot.wa.cov /NR/rdon !ores /DFF5944A- 22A7 -406C -85D5- E7C30A452D62/0 /WilburtonDetour 061108.pdf> From: Gary Stensland rmailto:gary stenslandapbsenv.coml Sent: Wednesday, July 02, 2008 2:57 PM To: Jennifer Horwitz Subject: COT Plan Sheets 07%02/2008 Carol Lumb - Re: Buffer Irnacts Green River (L06 Thanks, Gary Attached is a marked up JARPA sheet and the Illumination plan sheet with the location of the proposed new luminaire and junction box. Please let me know if you or the city needs anything else. This e-mail and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are NOT the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be advised that you have received this e-mail in error and that any use, dissemination, forwarding, printing or copying this e-mail is strictly prohibited. July 14, 2008 TO Jack Pace, Director, Dep =. t of Community Development FM: Carol Lumb, Senior P • �l er RE: Minor Modification to L06 -037, Shoreline Substantial Development Permit for I- 405 Improvements The Washington State Department of Transportation has requested a minor modification to the Shoreline Substantial Development Permit issued for the I -405 Improvements through land use file L06 -037. The minor modification is to install a light pole and junction box near the end of the south -bound on -ramp from Interurban Avenue to I -405. The luminaire and junction box are approximately 80 feet from the ordinary high water mark within the 200 -foot shoreline jurisdiction. The minor modification involves the temporary disturbance of 1,600 square feet of shoreline buffer and fifteen (15) square feet of permanent impact to the buffer for the placement of the junction box and luminaire. This request does not reach the threshold of a permit revision, which is a substantive change to the design, terms or conditions of a project from what has been approved under the original permit. WAC 173 -27 -100 defines substantive changes as those which materially alter the project in a manner that relates to its conformance to the terms and conditions of the permit. The WAC states that changes that are not substantive in effect do not require approval of a revision. If you concur with this assessment, please sign below. This memo will be placed in the file for L06 -037. • Cizy of Tukwila Department of Community Development Jack Pace, Director `3"S 1/ Pace, Director ate Department of Community Development CL Page l of I Q: \Nickle Fund Improvements \L06 -037 Minor Modification Jim Haggerton, Mayor 07/09/2008 12:47:00 PM 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 httn. / /mans diaitalmancentral cnm /TEMP mcu7c /nlutn (17 (16 FNFT R1 R6764R 1 71 5F1On59971 ROR19 117 /09 /7f1(1R FILE NAME TIME DATE PLOTTED BY chit 10a3:38 AM 6/7/2008 DESIGNED BY J. GELUNc3S ENTERED BY D. FRANKUM CHECKED BY K. OSWEU. PRIM ENG& L HODGSON REGIONAL ADM. D. DYE ... Rin r•-•-• , • 11°. ‘, • `. GENERAL NOTES: I So P 1. SEE SHEETS MNIAN2A. MAD FOR CONSTRUCTION NOTES. LUNDUURE SCHEDULES AND MARE NOTES CAWorlAProjeaVilseIBTJV00021dms012221BTJV0002_PSJL.405.dan ISSUED FOR CONSTRUCTION REVISION V '; • < ' 7.. .. 1 ,.:„....... , ... . ir 1. Y . s.. J i .. ,......:-.... ii , . , . 1 i 05105t2008 DATE KOO BY EEG= STATE 10 WASH JOE NEMER CONTRACT NO. -. • el , .- --- -4.,,- - ty T. 23 N., R. 4 - E405--LIN FEDAID PROJ.NO. LOCATION NO. .k I 11 lAt. MAIM 00X 41 .*•,-.( • - PE STAMP BOX OA= BILFHIGER ea i • ij r 1 , t • , BERGER GS Os Washing= Mb OsPOOnsat Towspeemiss 71111 Corridor Program WAD WANE assAllOOCOATS1 TRI-STATE OONSTRIXTION, INC ILLUMINATION LEGEND E/GSTING NEW RIGHT OF JUNCTION JUNCTION JUNCTION JUNCTION DA s coutaKir 0 k.0.0 14.1 7 A DESIGN PACKAGE 405 1-405 1-5 TO SR169 STAGE 1 - WIDENING ILLUMINATION PLAN ISSUED FOR CONSTRUCTION 0 60 100 SCALE 01 FEET WAY BOX TYPE 1 (TYPE 4 IF IN BOX TYPE 2 (TYPE 5 IF IN BOX TYPE 7 (TYPE 6 IF IN BOX PIERIA PAVED PAVED PAVED LIGHT STANDARD DOUBLE METAL LIGHT STANDARD SINGLE METAL UNDER DECIC LUMINAIRE SERVICE CABINET CONDUIT WIRE NOTE CONSTRUCTION NOTE TRANSFORMER CABINET (SEE ITS PLANS) MAY 1 6 2008 00X s AREA) AREA) AREA) Plot 4 IL3 OF RECEIVED JUN 2 0 2008 c OMMUNITY DEVELOPMEN Congestion Relief & Bus Rapid Transit Projects June 18, 2008 Carol Lumb Senior Planner City of Tukwila, Department of Community Development. 6300 Southcenter Boulevard, Suite 100 Tukwila, WA 98188 RE: Renton Nickel (LO6 -040) Special Permission, Director Dear Ms. Lumb: ordan 1-405 F roe °ct Environmental Manager willia i405.wsdot.wa. • ov cc: Alicia Toney, WSDOT 600 — 108 Avenue, NE, Suite 405 Bellevue, WA 98004 Main 425 -456 -8500 Fax 425 -456 -8600 As required by the Amended Special Permission, Director, Sensitive Areas Ordinance Deviation, we are transmitting to you the Landscape Plans for the 1-405, 1 -5 to SR 167 Stage 1 Widening Project. If you have any questions or need additional information, please do not hesitate to contact me. Sdeam Temp. /ism AO Ma Temp. Bahl Pena &Mr 09.GR-0.2 0 0 0 3974 10441 09.DW-0.8 0 0 0 395 1245 Name Temp Pam /naf,ed Temp Buffer Rm. &Ay 0.6L 0.01 0.01 0 0.07 0.51 14(0i asi T Tema I Ilwa k karma T Tama P Pella 0.9 R 0 0.01 0 0.01 0 0 0 0.04 0 0.19 »14a ATM Aw&vd refaa Pam fteifsr Barer 00.DW-0.8 0 0 0 395 1245 1 Wetland 0.6L WETLAND IMPACTS c TUKWILA. PKT Gilliam Creek (Stream 09.GR-0.2) STREAM IMPACTS te PURPOSE: Roadway improvements Unnamed trib. (Stream 09.GC-0.7) • 1-405,1-5 to SR169 & 8R167, 1.405 to SW 41ST ST REFERENCE 0: 200600097 APPUCANT: WSDOT PERMIT DRAWINGS to Gilliam Green River . 7 1 ,(Stream optoW-o.8) TD-2035L / '1 : • - ... • - ......- ... .• • • .. ..... . ' ‘ • . 5 •••....... .9 won, i . . ‘ • • HMM • . • / , • • . • •-•......••-••••-..--•••••••- ......■ / . • • • : • • • • PROPOSED/RETAIN: 1.7 acres of impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4128/08 M.P 0.60 C14 1POSE: Roadway improvaments F ,or . 100 200 Feet HORIZONTAL DAMN: NAD SIVOI VERTICAL DATUM: NAVD SS SHEET 5 OF 27 •-•. OF STREAM BUFFER N. ....--"-- I IMPACT FOR ...k N. •-''''. ILLUMINATION : WORK. 400 SQ FT OF TEMPORARY BUFFER .i. FT OF PERMANENT ..,....-- : .....1 IMPACT AND 15 SO BUFFER IMPACT. M 8thC C ti Proposed i Ecology t Embankment 0 „c3 0 ID-2047R • • • • • • • * :Wetland 0.9R .• • _ -Proposed Stormwater ••. Pond #MP 0.9 -sir•— ••••• •••• .." •• 1.405.1-510 811189 & SR167, 1-405 to SW 41ST ST REFERENCE a: 200600097 APPLICANT: WSDOT PERMIT DRAWINGS 1 1 WETLAND IMPACTS (Ac STREAM IMPACTS at 1 11D-2050R s I0 rii ij PROPOSED/RETAIN: 1./ awns of impacts to wetlands and other watena of the U.S. IN: Stroams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4/26/08 • Letteni, ms4 A 14 -.....aumayad Wetlands Proposed Slornavaior Paul PfdpeSed Stoma Onto Proposed RIghhot-Way Eels** Flioht-ol-Way Easement lino I „As Deans Dratted algved to- WM ID ct Fired Strom Outwit watt ID and cercelon of law •—■ Flow Arrow 1.—...-...1ClEote.oey Embankment Cross Sodas Locaton 03 sheen on D Meat Cross Seaton &roam on Data/ Shoot thIls - TAW Wad) on Channel Strom Limits of wor4 edging Storm Wolf Extsfng Storm Mahan • &otos Grata Ned Proposed Wall Undordraln lisisling Edge of soponieus Sodas° Proposed Edge of Imponfous Sudsco Cut Lino Fid Una Eiristmg Guardia Pemmnent Vlittland Impact Temp. Welland Impact Parma:vial Sham Impact Temp. Stamm Impact • • • • " • ' '• Stroam and Waiblid Buffer Notes Not se legend o'ornonls aro found on 0801 sheet math this drawing sot KEY PLAN (O 0 100 200 Foal IMMORTAL CUOMO OD 03181 VERTICAL DATUM; NAVD SHEET 7 OF 27 1 Wetland 0.6L WETLAND IMPACTS c TUKWILA. PKT Gilliam Creek (Stream 09.GR-0.2) STREAM IMPACTS te PURPOSE: Roadway improvements Unnamed trib. (Stream 09.GC-0.7) • 1-405,1-5 to SR169 & 8R167, 1.405 to SW 41ST ST REFERENCE 0: 200600097 APPUCANT: WSDOT PERMIT DRAWINGS to Gilliam Green River . 7 1 ,(Stream optoW-o.8) TD-2035L / '1 : • - ... • - ......- ... .• • • .. ..... . ' ‘ • . 5 •••....... .9 won, i . . ‘ • • HMM • . • / , • • . • •-•......••-••••-..--•••••••- ......■ / . • • • : • • • • PROPOSED/RETAIN: 1.7 acres of impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4128/08 M.P 0.60 C14 1POSE: Roadway improvaments F ,or . 100 200 Feet HORIZONTAL DAMN: NAD SIVOI VERTICAL DATUM: NAVD SS SHEET 5 OF 27 •-•. OF STREAM BUFFER N. ....--"-- I IMPACT FOR ...k N. •-''''. ILLUMINATION : WORK. 400 SQ FT OF TEMPORARY BUFFER .i. FT OF PERMANENT ..,....-- : .....1 IMPACT AND 15 SO BUFFER IMPACT. M 8thC C ti Proposed i Ecology t Embankment 0 „c3 0 ID-2047R • • • • • • • * :Wetland 0.9R .• • _ -Proposed Stormwater ••. Pond #MP 0.9 -sir•— ••••• •••• .." •• 1.405.1-510 811189 & SR167, 1-405 to SW 41ST ST REFERENCE a: 200600097 APPLICANT: WSDOT PERMIT DRAWINGS 1 1 WETLAND IMPACTS (Ac STREAM IMPACTS at 1 11D-2050R s I0 rii ij PROPOSED/RETAIN: 1./ awns of impacts to wetlands and other watena of the U.S. IN: Stroams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4/26/08 • Letteni, ms4 A 14 -.....aumayad Wetlands Proposed Slornavaior Paul PfdpeSed Stoma Onto Proposed RIghhot-Way Eels** Flioht-ol-Way Easement lino I „As Deans Dratted algved to- WM ID ct Fired Strom Outwit watt ID and cercelon of law •—■ Flow Arrow 1.—...-...1ClEote.oey Embankment Cross Sodas Locaton 03 sheen on D Meat Cross Seaton &roam on Data/ Shoot thIls - TAW Wad) on Channel Strom Limits of wor4 edging Storm Wolf Extsfng Storm Mahan • &otos Grata Ned Proposed Wall Undordraln lisisling Edge of soponieus Sodas° Proposed Edge of Imponfous Sudsco Cut Lino Fid Una Eiristmg Guardia Pemmnent Vlittland Impact Temp. Welland Impact Parma:vial Sham Impact Temp. Stamm Impact • • • • " • ' '• Stroam and Waiblid Buffer Notes Not se legend o'ornonls aro found on 0801 sheet math this drawing sot KEY PLAN (O 0 100 200 Foal IMMORTAL CUOMO OD 03181 VERTICAL DATUM; NAVD SHEET 7 OF 27 NATIVE SHRUB PLANTING QUANTITY SYMBOL ITEM SPACING 0 E 1 NOOTKA ROSE 015 33 20 RED FLOWERING CURRANT / 33 20 PLUM vac. 33 20 / INDUN WILD MOCKORANGE 33 20 / SNOWEERRY 33 20 SEEDING (WET NATIVE SEED MCC AND MULCHING (ACRE) 0,08 0.08 SOIL AMENDMENT (CY) 38.2 229 FINE COMPOST (CO 12.7 7.d BARK OR WOOD CHIP MULCH (0» 1.2 0.7 PERMANENT EROSION CONTROL SEED MIX QUANTITY SY9 30L ITEM A B 1 SEEDING (PERMANENT EROSION CONTROL SEED 9100, FERTIMINO AND MULCHING (ACRE) 015 0.52 WET NATIVE SEED MIX QUANTITY SYMBOL REM C P7 \ � /� SEEDING (WET NATIVE SEED MDQ AND MULCHING (ACRE) 0.17 ECOLOGY EMBANONFNr QUANTITY SYMBOL ITEM ET SEEDING (WET NATIVE SEED MOO AND MIRCNING (SQ FEET) 1038 LEGEND .AU, &LL AIL WETLAND • < TALENT DITCH // RIGNT OF WAY WETLAND BUFFER WETLAND BOUNDARY ECOLOGY EMBANKMENT RETAINING WALL BARRIER • 1— —1— —1— —1- GUARDRAIL O; i -- `- -- 1— —1— —1— -- 1075 ..... 0 / / /�/ / / / / \' / / / /� / / -' 1 / / / / I4Hy /j rD / ///// / / / / . • • #0 0- / /// / T. 23 N., R. 4 E., W.M. / RKTHT of WAY • • sir a / i1LF1V) DliCYf _ -- • • • • • • • / 7. • • • • / • . • / • i • —I. --1— ..I `I 3 \� \ • •-'- ' " • / / / •� / / //� - f • Au. J U' AU, „ aw A. / / / / 0 �'� /. K a �+ a�' / / // //7 -// . 1 ,11. au. a'' a a>. al .)1J ', / / / . / // / • • /" aw e .„.,,. / / / / / /� / , , , .. / j/ // /. ' � �� y �`fo�,Yt F490 �• `.: , �1. ill` �v ' ill "� —n_ V PLANT QUANTITIES •TT1IS SHEET ONLY DATE: DESIGN PACKAGE 405 MAY 2 2 2008 ISSUED FOR CONSTRUCTION 1 1 1 0 5o 100 SCALE IN FEET STATE OF WASHINGTON REGISTERED DSCAPE ARCHITE .Le FRANK GROZNIK CERTIFICATION NO. 721 FILE NAME LAPORTLAND■40000140778_4406 1-8 TO 167 Stage 11DWG1BTJV0002 PS_LS 405.dgn TIME 11:41:14 AM DATE 5(1412008 PLOTTED BY fouade DESIGNED BY E. BOWERS ENTERED BY F. ELGHARABLI CHECKED BY F. GROZNIK PROJ. ENGR. L HODGSON REGIONAL ADM. D. DYE REVISION DATE BY REGION NO. 10 STAR WASH JOB Nu 03ER CONTRACT NO FED.AID PROJ.NO. LOCATION NO. P.E. STAMP BOX DATE P.E. STAMP BOX DATE Or BILFINGER[BERGER I 111!lI11 Corridor Program DAVID NANO ..AS.00IATRG -. L TM-STATE CONSTRUC.I ION. INC. 1-405 1 -5 TO SR169 STAGE 1 - WIDENING LANDSCAPE PLAN Plot 1 LS1 SHEET OF SLEETS RIPARIAN PLANTING QUAN7RY SYMBOL REM SPACING 8 D 0 H ---/ / ��% BIG LEAF MAPLE VINE MAPLE 12 32 7 4 i PAPER BIRCH f0'O.G 12 32 7 4 /i OREGON ASH DOUGLAS HR 12 32 7 4 �___ WESTERN REDCEDAR WESTERN HAZELNUT Z9 60 19 7 i PACIFIC NINEBARK CASCARA 25 65 14 8 PACIFIC DOGWOOD 25 65 14 8 � i SOIL AMENDMENT (0» /i�� SCOULER'S WILLOW PWM 25 65 14 8 7- -----------..... S/!IU WSW SO.G 25 65 14 8 �i REDOSIER DOGWOOD SNOWBERRY 25 65 14 8 / iii RED ELDERBERRY aoi 25 65 14 8 .� //� BALD4 P ROSE 25 65 14 8 SEEDING (WET NATIVE SEED M BAR)( OR WOOD was MULCH (CY) 0.2 9.4 AND MHACIONO (ACRE) 019095 0.07 aW SOIL AMENDMENT (CY) 51 us 90 tae FINE COMPOST ICY) 18 47 10 56 BARK OR WOOD CHIP MULCH (CY) 1.7 4.4 0.9 0.6 URBAN FOREST PLANTING QUANTIY SYMBOL REM SPACING A C •'•' �, :.'r :,•;,' :. +; �••� VINE MAPLE 1 67 SOIL AMENDMENT (CY) 186 � WESTERN REDCEDAR 1 Q7 .��1 �.��.• DOUGLAS HR 1170.0 1 67 N IT. 44 WESTERN HAZELNUT 9 126 ►••1•••4••j� CASCARA 4 195 �• • �• 144, • , RED FL01AER/N0 CURRANT 0.15 4 193 SOIL AMENDMENT (0» 282 ► !ET PWM 5'0.C. 4 193 7 4;2 0 W . ..1 4 , WILD MOCKORANGE 83 4 193 �• •• •• ••' SNOWBERRY 4 193 SEEDWO (DRY NATIVE SEED UDC AND MULCHING (ACRE,) aoi 0.71 SOB. AMENDMENT (C1) 6.0 299 FOPS COMPOST (C1) 2 f00 BAR)( OR WOOD was MULCH (CY) 0.2 9.4 NATIVE SHRUB PLANTING QUANTITY SYMBOL /7E 61 K E L •'•' �, :.'r :,•;,' :. +; SEEDING (DR( NATIVE SEED M00 AND MULCHING (ACRE N00 ROSE 227 51 SOIL AMENDMENT (CY) 186 RED FLOWERING CURRANT 227 61 INDIA PLU woo 227 51 WID MOCK ORANGE 227 51 / SNOWBFRRY 227 51 SEEDING AET NATIVE SEED MAO AND MULCHING (ACRE) 0.65 0.15 SOIL AMENDMENT (0» 282 Se FINE COMPOST (CY) 67378.8 BARK OR WOOD CHOP MULCH (CY) 83 1.9 DRY NATIVE Std MIX QUANTITY SYMBOL REM K J •'•' �, :.'r :,•;,' :. +; SEEDING (DR( NATIVE SEED M00 AND MULCHING (ACRE 0.46 SOIL AMENDMENT (CY) 186 WET NATIVE SEED MIX QUANTITY SYMBOL ITEM 1 J :r0 . , SEEDING (A/FT NATIVE SEED MDQ AND MULCHING (ACRE) 0.07 PERMANENT ER031011 CONTROL SEED MD( QUANTITY SYMBOL ITEM F J SEEDING (PERMANENT EROSION CONTROL SEED M0Q, FERTIIJ7JNG AND MULCHING (ACRE) 0.16044 FILE NAME TIME DATE r' T w�c� ��•�� � it/ '•^• ASKS , - �i{�j,( /(/�(!� iq�-- •+R..,�, •,•, �,'�'.''Tt',- +fir'+., _ - . . - - LEGEND ill& 515 ALL WETLAND • < TALENT DITCH /uiuiiuuuii RIGHT OF WAY WETLAND BUFFER WET7AN0 BOUNDARY ECOLOGY EMBANKMENT RETAINING WALL BARRIER GUARDRAIL IMPACT AREA 1:02:65 PM 4/2.3(2008 PLOTTED BY remade DESIGNED BY E. BOWERS ENTERED BY F. ELGHARABLI CHECKED BY F. GROZNIK PROD. ENGR L. HODGSON REGIONAL ADM. D. DYE • • SELECTIVE CLEAR/NO AREA SEE NOTE 7, SHEET LD1 • OF WAY INIERPIANRNG AREAS — SEE SETBACK CHART, SHEET LD2 L•1PORTLAND140000140778 4405 1-5 TO 167 Stage 1lDWGtBTJV0002 PS,LS 405.dgn REVISION DATE BY REGION 1 STATE WASH JOB NNI86R CONTRACT NO. r T. 23 N., R. 4 E., W.M. FED.AID PROJ.NO. LOCATION NO. P.E. STAIN. BOX BUFFER BATE PLANT QUANTITIES - THIS SHEET ONLY P.E.STAMP BOX BUFFER DATE 405 BUFFER • ~Mgt= ebb 1 Corridor Program `- (' *AVM !W M* BILPINGERi BERCEfl .eA..oOU'rn,r. LYJ YC. YYU 'I•RI- STATE CONSTituc-TIQN. INC. DESIGN PACKAGE 405 1-405 1 -5 TO SR169 STAGE 1 - WIDENING LANDSCAPE PLAN DATE: MAY 2 2 2008 ISSUED FOR CONSTRUCTION 0 60 100 SCALE IN FEET co mow RIO STATE OF WASHINGTON REGISTERED LANDSCAPE ARCH FRANK GROZNIK CERTIRCATION NO. 72) Plot 2 LS2 OF SHEETS URBAN FOREST PLANTING QUANTITY SYMBOL ITEM SPACING H ,�✓�� SEEDING (WET NATIVE SEED MAO AND MULCHING (ACRE) 0.28 i i: : ::0 4, 4,4 : 4 : 4 13: 4 1111111 � %f %�i It* 11 1 11 1 11 1 j r1 NXE MAPLE 10'O.0 18 0.03 REDCEDAR TB 124 DOUGLAS FIR 18 INDIAN PLUM 6'O.0 WESTERN HAZELNUT 34 P *sr** r, .. 1 j 1 1 1 i 1: 1 11 i 4 ► 11 1 1 1 1 1 1 1 1 1 1 11 1 111 1 1 1 Moo MOCKORANGE 1 11 1 1 1 11 1 1 , CASCARA 6'O.C. 52 / RED FLOWERING CURRANT 52 124 INDIAN PLUM SEEDING (WET NATIVE SEED MOO 52 0.35 SN 52 143 SEEDING (DRY NATIVE SEED MDO AND MULCHING (ACRE,( 0.2 48 SOIL AMENDMENT (CY) 81 4.5 FINE COMPOST (C1) 27 BARK OR WOOD CHIP MULCH (CY) 2.5 NATIVE SHRUB PLANTING QUANTITY SYMBOL REM SPACING A ,�✓�� SEEDING (WET NATIVE SEED MAO AND MULCHING (ACRE) 0.28 /7 NOOTKA ROSE 007 124 0.03 RED FLOWERING CURRANT 124 INDIAN PLUM 6'O.0 124 WILD MOCKORWQE 124 / SNOWBERRY 124 SEEDING (WET NATIVE SEED MOO AND MULCHING (ACRE) 0.35 SOIL AMENDMENT (CY) 143 FINE COMPOST (CV) 48 BARK OR WOOD CHIP MARCH (Cr 4.5 WET NATIVE SEED NEC QUANTITY SYM801. ITEM C D GP ,�✓�� SEEDING (WET NATIVE SEED MAO AND MULCHING (ACRE) 0.28 0.01 0.35 007 PERMANENT EROSION CONTROL SEED MIX QUANTITY SYM801 ITEM B GP I SEEDING (PERMANENT EROSION CONTROL SEED MDO. PERTIUZING AND MULCHING (ACRE) 0.35 007 0,08 0.03 !+3 ■ $1\ / I�l \L���i� ►��WSrr 'Ae1omeRNIMIONISM111 1 ' ���� iii � "'—�. � :. -: ,..:: :.._: �. -'.: . - ,..,.- Y!*� �ir�� T)l!\ osmoosonsmoma � iii __ •i;. ` a� iii Yip T= `!G'_ir- ___J.?l�-? }�1t �7i1i�ifi.� \:_ Tim:�. �_i_ . LEGEND A u, Au, .515 WETLAND TALENT DITCH RIGHT OF WAY WETLAND BUFFER WETLAND BOUNDARY ECOLOGY EMBANKMENT RETAINING WALL BARRIER GUARDRAIL IMPACT AREA 100 YEAR FLOOD • • BUFFER BUFFER UNNAMED TRIBUTARY OHWM T. 23 N., R. 4 E., W.M. • • .• BUFFER • PLANT QUANTITIES -1311S SHEET ONLY W ORT OF w17( 100 YEAR FLOOD DATE: TALEI4T D1TCI! • BUFFER DESIGN PACKAGE 405 MAY 2 2 2008 ISSUED FOR CONSTRUCTION I I I 0 50 100 SCALE IN FEET 5 Z e) 3 W tu 3w N STATE OF WASHINGTON REGISTERED LANDSCAPE ARCHITE ,c am. FRANK GROZNK CERTIFICATION NO. 721 FILE NAME LAPORTLAND140000k07784•405 1-5 TO 167 Stage 11DWGIETJV0002 PS LS 405.dgn TIME 1:03:23 PM DATE PLOTTED BY 4/23/2008 touade DESIGNED BY E. BOWERS ENTERED BY F. ELGHARABLI CHECKED BY F. GROZNIK PROD. ENOR. L. HODGSON REGIONAL ADM. D. DYE REVISION rerun. N0. 10 STATE WASH JOB NUMBER DATE BY CONTRACT NO FED.AID PROJ.NO. LOCATION NO. P.E. STAMP BO5 DATE PE STAMP 80% A11114,1 :a1A 405 Waattroten Mrs D°apart+A.AT of TranapamMan Corridor Program BILFING = •r.AiioD1 rod to TRI- STATE CONSTRUCTION, INC. 1-405 1 -5 TO SR169 STAGE 1 - WIDENING LANDSCAPE PLAN Plot 3 LS3 MEET OF INIEETS URBAN FOREST PLANTING QUAMTTY SYMBOL ITEM SPACING A B I SEEDING . ' :•��1��• *;•j VINE MAPLE 0.060.15 21 30 1=====i %.� WESTER1J RE CEDAR 21 S0 /�•��•��• • DOUQtAS FIR 10'0.0 21 30 Att.* !.;•:.•.•, •; WESTERN HAZELNUT 40 57 *1�•��•if t • CAS CARA 51 87 0,147p$4 x•1. RED FLOWERI NO CURRANT 61 87 '••�,�,•�� e INDIAN PLUM 519.0. 61 67 1 1� • • �� S�i� WILD MOCKORANGE 61 87 ! • �• A'• �• SNO WBF -Nt 61 87 SEEDING (DRY NATIVE SLED MDQ AND MULCHING ( 0.23 0.33 SOIL AMENDMENT (Cr 95 135 FINE COMPOST (Cr 31.5 45 BARK OR WOOD CHIP MULCH (CY) 3 4.2 ECOLOGY ENDAMGSFM QUANTITY SYMBOL nut 51 D E I SEEDING . ' SEEDING (WET NATIVE SEED M0Q AND MULCHING (SQ FEET) 709 0.060.15 I 1 1=====i PERMANENT EROSION CONTROL SEED MIX QUANTITY SYMBOL ITEM C D E I SEEDING . ' (PERMANENT EROSION CONTROL SEED MDQ, FERTILfZNG AND MULCHING (ACRE) 0.18 0.060.15 %l1 1 / / / • !II1U�'•,►��f !� `�! �'��� � �.111►� � �'.�I► �'.i►�(i► iiWf . BUFFER 1 1 i INTERPLANTING AREAS SEE SETBACK CHART: SHEET LD2 1 1 ' �y' \ i k\ \ \ \ \ \ OP 7 * ' 4*-'4111 k ill WI/WAN '1: — / / 11/IL T. 23 N., R. 4 ED, W.M. • 1 1 1 11 \ q LEGEND TALENT DITCH I //! / / / / / / / / / /// RIGHT OF WAY WETLAND BUFFER WETLAND BOUNDARY ECOLOGY EMBANKMENT RETAINING WALL BARRIER •1- -1- -1- -1- GUARDRAIL IMPACT AREA q is rte i `` 11 1 1✓(', /p — 1 1 1 1 1 i1 1 1 MATCH LINE SEE SHEET LS5 .z. PLANT QUANATIES - THIS SHEET ONLY RIGHT OF WAY ----- c= s. §xi.•aacz�sS: =-saw DATE: DESIGN PACKAGE 405 MAY 2 2 2008 ISSUED FOR CONSTRUCTION 0 60 100 SCALE IN FEET STATE OF WASHINGTON REGISTERED LANDSCAPE ARCHITECT FRANK GROZNIK CERTIFICATION NO. 721 0 Z 3i r FILE NAME L:IPORTLANDt40000140778 1-5 TO 107 Stage 11DYVGIBTJV0002 PS_LS 405.dgn TIME 1:03:54 PM DATE PLOTTED BY 4123(2008 fouade DESIGNED BY E. BOWERS ENTERED BY F. ELGHARABLI CHECKED BY F. GROZNIK PROJ. ENGR. L. HODGSON REGIONAL ADM. D. DYE REVISION DATE BY REGION NO. 10 STATE WASH 108 NUMBER CONTACT ND. FED.AID PROJ.NO. LOCATION N0. ME !MANE BOX DATE P.E. STAMP BOX DATE ®■ BILFINGER BERGER :ml Lc ra 5.1. 0 TRI -STATE CONSTRUCTION. INC Ifni DAVID EVANS r ASSOCIATED r. 1-405 1-5 TO SR169 STAGE 1 - WIDENING LANDSCAPE PLAN Plot 4 LS4 *055T OF SHEETS NATIVE SHRUB PLANTING QUANTITY SYMBOL REM SPACING A E2 E3 F /7 NOO7KA ROSE 6'0.17. 101 71S 024 874 RED FLOWERING CURRANT {01 / GE 01 101 SNOWBERFW SEEDING (WET NATIVE SEED MOO AND MULCHING (ACRE) 0.26 SOIL AMENDMENT (CY) 116 FINE COMPOST (CY) 32 BARK OR WOOD CHIP MULCH (CY) 3.7 WET NATIVE WED MIX QUANTITY SYMBOL REM C E2 E3 F -" ✓/ ' SEEDING NET NATIVE SEED MDQ AND MULCHING LACt4 0.2 71S 024 874 ECOLOGY EtLWMALENT QU.Wfl7Y SYMBOL 778)4 El E2 E3 F ' ♦♦' SEEDING (WET NATIVE SEED MOQ AND MULCHING (SQ FEET) M83 71S 024 874 PERMANENT EROSION CONTROL SEED MIX QUANTITY SYMBOL REM B D E F ' ♦♦' SEEDING (PERMANENT EROSION CONTROL SEED Mal FERTILIZING. AND MULCHING MORE) 0.28 0,05 0,12 874 LEGEND Uh WEnAND TALENT DITCH �uuiuuiiii�! RIGHT co WAY WETLAND BUFFER WETLAND BOUNDARY Pam ECOLOGY ENBAN MEET RETAINING WALL BARRIER •I— —I— —I— —I- GUARDRAIL MATCH UNE SEE SHEET LS4 a T. 23 N., R. 4 E., W.M. PLANT QUANTITIES - THIS SHEET ONLY RIGHT OF WAY DATE: DESIGN PACKAGE 405 MAY 2 2 2008 ISSUED FOR CONSTRUCTION 1 1 I 0 60 100 SALE IN FEET STATE OF WASHINGTON REGISTERED LANDSCAPE ARCHITECT L FRANK GROZt11K CERTIFICATION NO. 721 FILE NAME TIME L IPORTLAND140000140778 1406 7-5 TO 167 Stage 11DWG1BTJV0002P8 1:68 :66 PM DATE PLOTTED BY 6/1612000 touade DESIGNED BY E. BOWERS ENTERED BY F. ELGHARABU CHECKED BY F. GROZNIK PROJ. ENGR. L. HODGSON REGIONAL ADM. D. DYE REVISION DATE REGION STATE N0. 10 WASH AOD MASTER BY CONTRACT N0. FED.AID PROJ.NO. IACATIQI N0. PE. BUMP 80X DATE PE STAMP .OX DATE BILPINOE DAVID IMAM. CT(R1T rASSOCIATIIw NO be {YI1YI 117 TRI -STATE CONSTRUCTION, INC 1-405 1 -5 TO SR169 STAGE 1 - WIDENING LANDSCAPE PLAN Plot 6 LS5 SHEET Of SHEETS NATIVE SHRUB PLANTING QUANTITY SYMBOL ITEM SPACING E C D F G NOOTKA ROSE 5'0.Q 112 0030.09 a0B 7/ RED FLOWERING CURRANT 112 fir' �IC .►i �Y -Itinae �r" PLUM 112 !!lIW.LW / INDIAN W AD M OCKORAN GE 112 J -_ - — —- — — - SNOWBERRY 112 N67'16'00 "E 86it464'E SEEDING (WET NATIVE SEED MDQ / AND MULCHING (ACRE) 0.32 SOIL AMENDMENT (CY) 129 FINE COMPOST (Cr 43 ON AMT0111111111MILINIm. BARK OR WOOD CHIP MULCH (Cr 4.1 �T r i 1l PrP--- PERMANENT EROSION CONTROL SEED 0.(O( QUANTITY SYMBOL ITEM A B C D F G H ' ' ♦♦ SEEDING (PERMANENT EROSION CONTROL SEED MIX), FERTILIZING. AND MULCHING (ACRE) 0030.09 a0B a090.05039 !lri! /L♦ fir' �IC .►i �Y -Itinae •X RIGHT OF WAY i I I I I . I / / F -{G) -(� r I 1 1 I I ! !lri! /L♦ fir' �IC .►i �Y -Itinae �r" X /Cl !!lIW.LW - - r J -_ - — —- — — - 12 5 N67'16'00 "E 86it464'E / RIGHT OF WAY ON AMT0111111111MILINIm. �T r i 1l PrP--- LEGEND WL. ,&I1 ' WETLAND TALENT arm RGHT OF WAY WETLAND BUFFER WETLAND BOUNDARY ECOLOGY EMBAMWENT RETAINING WALL BARRIER GUARDRAIL IMPACT AREA fTh T. 23 N., R. 4 E., W.M. 100 YEAR FLOOD — PLANT QUANTITIES -THIS SHEET ONLY DATE: DESIGN PACKAGE 405 MAY 2 2 2008 ISSUED FOR CONSTRUCTION 1 1 1 0 60 100 SCALE IN FEET STATE OF WASHINGTON REGISTERED LANDSCAPE ARCHITE FRANK GROZNIK CERTIFICATION NO. 721 FILE NAME L:IPORTLAND140000140778_•405 I-6 TO 167 Stage 1%DWG1BTJV0002 PS_LS 405.dgn TIME 11:43:48 AM DATE 5114/2008 PLOTTED BY (wade DESIGNED BY E. BOWERS ENTERED BY F. ELGHARABLI CHECKED BY F. GROZNIK PROJ. ENGR. L HODGSON REGIONAL ADM. D. DYE REVISION DATE BY *TAM 10 WASH JOB NUMBER CONTRACT NO. FED.AID PROJ.NO. LOCATION NO. P.E. WARP BOX BATE P.E. STAMP BOX BATE t,�• BJLFINOER BERGER Sn'16c ,.., in TRI-STATE coNsTl:ccrlo,, Owal CLAIM NANB ANSOCI ATIL.-o. 1-405 1 -5 TO SR169 STAGE 1 - WIDENING LANDSCAPE PLAN Plot 6 LS6 WEST OF MEETS PLANT MATERIAL LIST • P-2, 1 -0, 2-0 INDICATES SEEDLING AGE. THE FIRST NUMBER DENOTES YEARS IN GREENHOUSE OR SEEDBED; THE SECOND NUMBER DENOTES YEARS GROWN IN A TRANSPLANT BED. THE LETTER *" DENOTES A PLUG SEEDLING. •• SEE AMERICAN NURSERY STANDARDS FOR NURSERY STOCK' LATEST EDITION, FOR GRADE CLASS DEFINITIONS. ••• PER THE RENTON NICKEL IMPROVEMENT PROJECT SHORELINE PERMIT (LUA08-018SM) UP TO 89 TREES MAYBE REMOVED WITHIN THE SHORELINE OF SPRINGBROOK CREEK. EACH TREE REMOVED MUST BE REPLACED BY A TREE WITH A MINIMUM 2" CALIPER AT RA770 OF UP TO 21. LANDSCAPE NOTES 1. See "American Standard for Nursery Stock" (ANLA 2004) for plant quality minimum standards. 2. See Section 8-01 and 8-02 of the Standard Specifications and Special Provisions for specific information on seed application and planting methods. 3. Trees and tall shrubs shall not be planted within the clear zone. 4. Seed will not be applied on trails or access roads, and the "no vegetation zone" of ecology embankments. 5. Save and protect all desirable vegetation as specified in Section 1 -07.16 (2) of the Standard Specifications. • WESTERN REDCEDAR SHALL BE PLANTED AT A RATE OF 90 TREES PER ACRE WITHIN URBAN FOREST PLANTING, AND 170 TREES PER ACRE WITHIN RIPARIAN BUFFER PLANTING. '• NOOTKA ROSE AND SNOWBERRY ARE PLANTED AS SHOWN FOR THE WALL PLANTING AREAS (SEE SHEET LS7 AND LS8), AND PLANTED AT RATE SHOWN ABOVE PER ACRE (AS INDICATED ON OTHER SHEETS) IN OTHER PLANTING AREAS. • ' SEE SPECIAL PROVISIONS FOR SPECIFIC SEED MIX INFORMATION. 6. In areas of dense existing vegetation, adjust plant spacing and quantities to availability of space. See setback chart for details. 7. For selective clearing areas, control weeds per weed control plan. 8. In areas of dense existing vegetation, adjust plant spacing and quantities to availability of space. See setback chart for details. 9. My disturbed areas that are not identified with a specific planting plan shall be seeded with the approprate seed mix, applied at the rate shown above, or applied with the appropriate plant mix as determined by the landscape architect. 10. Trees and shrubs shall be randomly intermixed at the rate and approximate spacing as shown for each planting area, see Random Planting Planting Pattern Detail. DATE: DESIGN PACKAGE 405 MAY 2 2 2008 ISSUED FOR CONSTRUCTION STATE OF WASHINGTON REGISTERED LANDSCAPE ARCH FRANK GROZMIK CERTIFICATION NO. 721 FILE NAME TIME L:IPORTLAND140000140778_I.4o5 IS TO 167 Stage 1IDWO BTJV0002,PS_LS 405.dgn 1:57:25 PM DATE 511512008 PLOTTED BY fouade DESIGNED BY E. BOWERS ENTERED BY F. ELGHARABLI CHECKED BY F. GROZNIK PROJ.ENGR L HODGSON REGIONAL ADM. D. DYE REVISION DATE REOXIN Na 10 STATE WASH JOB NURSER BY CONTRACT NO FED.AID PROJ.NO. LOCATION NO. PE STAMP BOX DATE P.e aTA.IP BOX DATE Corridor Program BI LFINGERIBERGER c.a h� ___IIUIWWIYYY �v'_ntrt L7 I � T RI- 51'.4'I'CCO\SI'ItGC "I'ID \.I\C. DAVID NANO ..- ASSOCIATBOr 1-405 1 -5 TO SR169 STAGE 1 - WIDENING PLANT MATERIAL LIST & NOTES Plot 11 LD1 SHEET OP INEET8 COMMON NAME BOTANICAL NAME SiZE 8 DESCRIPTION GRADE CLASS QUANTITY PER ACRE MEASURING UNIT QUANTITY SHEET LS1 SHEET LS2 SHEET LS3 SHEET LS4 (SHEET LS5 SHEET LS8 SHEET LS7 SHEFT LS8 SHEET LS9 SHEET LS10 SHEET LS11 SHEET LS12 TOTAL TREES VINE MAPLE Acer cIclnatum 24" HT. SEEDLING 2-0 10.21 90 ITEM 68 18 61 137 DOUGLAS FIR Pseudotsuga menzlesli 2 GALLON CONTAINER CLASS 0 2 10.3 90 ITEM 68 18 61 137 WESTERN HAZELNUT Corylus comuta Califomica' 24" HT. SEEDLING 2-0 10.2.1 170 WW 911 � 2 2 2 b 0 m N N 129 34 97 259 BIG LEAF MAPLE Acer macrophyllum 2 GALLON CONTAINER CLASS 90 54 _ 40•• 94 PAPER BIRCH Betula papyrftera 2 GALLON CONTAINER CLASS 90 54 40••• 94 OREGON ASH Fraxinus latlfolfa 2 GALLON CONTAINER CLASS 0 2 10.3 90 54 40••• 94 WESTERN REDCEDAR Thuja plicate 24" HT. SEEDLING P -2 10.2.2 90/170 • 170 18 51 75••• 314 SHRUBS PACIFIC NINE-BARK Physocatpus capitafus 1 GALLON CONTAINER CLASS 185 111 82 193 PACIFIC DOGWOOD Comus nuttalli 1 GALLON CONTAINER CLASS 185 111 82 193 SCOULERS WILLOW Salix scouleriane 18' HT. BARE -ROOT SEEDLING 185 111 82 193 SiTKA WILLOW Salk sitchensls 18" HT. BARE -ROOT SEEDLING 185 111 82 193 REDOSIER DOGWOOD Comus serfcea _ 18' HT. SEEDLING 1-0 2.3.1 185 111 82 193 RED ELDERBERRY Sambucus moemosa 18" Hr SEEDLING 1-0 2.3.1 185 111 82 193 BALD -HIP ROSE Rosa gymnocarpa 18' HT. SEEDLING 2-0 2.3.1 185 111 82 193 CASCARA Rhamnus purshlana 18" HT SEEDLING 2-0 2.3.1 350 278 62 148 397 NOOTKA ROSE •• Rosa nutkana 18° HT. SEEDLING 2-0 Z3.1 350 •• 475 124 101 112 298 276 1242 RED FLOWERING CURRANT Ribes sangulneum 18' HT. SEEDLING 2-0 260 475 176 148 101 112 239 1303 INDIAN PLUM Oelmeria cerashbrmis 18" HT. SEEDLING 2-0 260 475 178 148 101 112 238 1303 WILD MOCKORANGE Phlladelphus lewisil i8" HT. SEEDLING 1-0 2.3.1 260 475 176 148 101 112 238 1303 SNOWBERRY •' Symphorfcarpus alba 18" HT. SEEDLING 1-0 2.3.1 260 •' 475 178 148 101 112 298 278 1839 TALL OREGON GRAPE Mahonia nervosa _ 18' HT. SEEDLING 2-0 _ 2.3.1 12.6 AS SHOWN AS SHOWN 80 276 338 BOSTON IVY Parthenoclssus Mcuspldata "VeitchiF 1 GALLON CONTAINER CLASS # 1 58 278 334 PERMANENT EROSION CONTROL SEED MIX '•' 76 lb 47 39 30 80 58 124 134 107 59 50 28 788 DRY NATIVE SEED MIX ••• , 97 lb 116 19 53 188 WET NATIVE SEED MIX ••• 85 lb 123 55 1 48 27 121 25 59 7 494 SOiL SOiL AMENDMENT (CY) 1054 224 229 118 129 452 278 281 2822 FiNE FINE COMPOST (CY) 289 75 78 39 43 151 53 748 BARK OR WOOD CHIP MULCH (CY) 27 7 7 4 4 14 158 224 PLANT MATERIAL LIST • P-2, 1 -0, 2-0 INDICATES SEEDLING AGE. THE FIRST NUMBER DENOTES YEARS IN GREENHOUSE OR SEEDBED; THE SECOND NUMBER DENOTES YEARS GROWN IN A TRANSPLANT BED. THE LETTER *" DENOTES A PLUG SEEDLING. •• SEE AMERICAN NURSERY STANDARDS FOR NURSERY STOCK' LATEST EDITION, FOR GRADE CLASS DEFINITIONS. ••• PER THE RENTON NICKEL IMPROVEMENT PROJECT SHORELINE PERMIT (LUA08-018SM) UP TO 89 TREES MAYBE REMOVED WITHIN THE SHORELINE OF SPRINGBROOK CREEK. EACH TREE REMOVED MUST BE REPLACED BY A TREE WITH A MINIMUM 2" CALIPER AT RA770 OF UP TO 21. LANDSCAPE NOTES 1. See "American Standard for Nursery Stock" (ANLA 2004) for plant quality minimum standards. 2. See Section 8-01 and 8-02 of the Standard Specifications and Special Provisions for specific information on seed application and planting methods. 3. Trees and tall shrubs shall not be planted within the clear zone. 4. Seed will not be applied on trails or access roads, and the "no vegetation zone" of ecology embankments. 5. Save and protect all desirable vegetation as specified in Section 1 -07.16 (2) of the Standard Specifications. • WESTERN REDCEDAR SHALL BE PLANTED AT A RATE OF 90 TREES PER ACRE WITHIN URBAN FOREST PLANTING, AND 170 TREES PER ACRE WITHIN RIPARIAN BUFFER PLANTING. '• NOOTKA ROSE AND SNOWBERRY ARE PLANTED AS SHOWN FOR THE WALL PLANTING AREAS (SEE SHEET LS7 AND LS8), AND PLANTED AT RATE SHOWN ABOVE PER ACRE (AS INDICATED ON OTHER SHEETS) IN OTHER PLANTING AREAS. • ' SEE SPECIAL PROVISIONS FOR SPECIFIC SEED MIX INFORMATION. 6. In areas of dense existing vegetation, adjust plant spacing and quantities to availability of space. See setback chart for details. 7. For selective clearing areas, control weeds per weed control plan. 8. In areas of dense existing vegetation, adjust plant spacing and quantities to availability of space. See setback chart for details. 9. My disturbed areas that are not identified with a specific planting plan shall be seeded with the approprate seed mix, applied at the rate shown above, or applied with the appropriate plant mix as determined by the landscape architect. 10. Trees and shrubs shall be randomly intermixed at the rate and approximate spacing as shown for each planting area, see Random Planting Planting Pattern Detail. DATE: DESIGN PACKAGE 405 MAY 2 2 2008 ISSUED FOR CONSTRUCTION STATE OF WASHINGTON REGISTERED LANDSCAPE ARCH FRANK GROZMIK CERTIFICATION NO. 721 FILE NAME TIME L:IPORTLAND140000140778_I.4o5 IS TO 167 Stage 1IDWO BTJV0002,PS_LS 405.dgn 1:57:25 PM DATE 511512008 PLOTTED BY fouade DESIGNED BY E. BOWERS ENTERED BY F. ELGHARABLI CHECKED BY F. GROZNIK PROJ.ENGR L HODGSON REGIONAL ADM. D. DYE REVISION DATE REOXIN Na 10 STATE WASH JOB NURSER BY CONTRACT NO FED.AID PROJ.NO. LOCATION NO. PE STAMP BOX DATE P.e aTA.IP BOX DATE Corridor Program BI LFINGERIBERGER c.a h� ___IIUIWWIYYY �v'_ntrt L7 I � T RI- 51'.4'I'CCO\SI'ItGC "I'ID \.I\C. DAVID NANO ..- ASSOCIATBOr 1-405 1 -5 TO SR169 STAGE 1 - WIDENING PLANT MATERIAL LIST & NOTES Plot 11 LD1 SHEET OP INEET8 RANDOM PLANTING PATTERN PLANT MATERIAL MIN. SETBACK CHART THIS CHART SUPPLEMENT SECTION 8.0231(7) OF 771E STANDARD SPECIFICA77 NOTE: TYPICAL SETBACKS FOR PLANT MATERIAL UNLESS OTHERWISE DIRECTED BY THE ENGINEER DURING LAYOUT AND STAKING OF PLANT LOCATIONS. DISTANCE NOTED IS TO STEM OR TRUNK OF PLANT. IF VEGETATION EXISTS WITHIN PLANTING AREA, SEE SETBACK CHART AREA FOR SPACING ADJUSTMENT X = PLANT SPACING (SEE PLANTING PLAN) ®= PLANT EXISTING VEGETATION SEE SETBACK CHART ®®® ®®®®®® ® PLANTING AREA WEED CONTROL SHALL INCLUDE 771E AREA BOUNDED BY THE BACK OF THE PLANT INSTALLATION AREA, THE FRONT OF EXISTING VEGETATION, AND THE ROADWAY. SEE SECTION 8.023(3) PLANTING AREA WEED CONTROL NOT 70 SCALE 20 X BARRIER, GUARDRAIL OR EDGE OF ROADWAY PLANTING AREA LAYOUT, SETBACK, AND WEED CONTROL OFFSET PLANTS TO AVOID STRAIGHT ROWS RANDOMLY MIX PLANT SPECIES TYPICAL O.C. (ON CENTER) PLANTING GRID CLUMP AND SCATTER PLANTS SO THAT AVERAGE PLANTING DENSITY IS EQUIVALENT TO GRID SPACING IF PLANTING WITHIN EXISTING VEGETATION, SEE SPECIAL PROVISIONS FOR SELECTIVE CLEARING AND PRUNING NOT TO SCALE GRADE EXISTING GRADE 3' SOIL AMENDMENT �� 00_eoe 017 STEP I SECTION VIEW STEP 2 RETAINING WALL 1 -- 2" WATER RETENTION BASIN — BOSTON IVY - LOCATION AS SPECIFIED ON PLANTING PLAN (SHEET LS8) SET PLANT VERTICALLY AT FACE OF THE WALL DIRECT VINE TOWARD THE WALL WITH DM. BAMBO STAKE. I -I I I I -I I I I -I I I I -I I I I -I I I LI 11-1111-1111-1111-1111-1111-11 EXISTING SOIL PLANTING AREA ALONG THE WALL STEP 3 STEP 4 STEP 5 NOT 70 SCALE STEP 1 PLACE 3' SOIL AMENDMENT STEP 2 INCORPORATE SOIL AMENDMENT 70 10' DEPTH PLANTING AREA SOIL PREPARATION - SEQUENCE OF WORK PLACE (' COMPOST STEP 4 INSTALL RANT (SEE PLANTING DETAIL) STEP 5 N.T.S. DATE: SHRUB - LOCATION AS SPECIFIED ON PLANTING PLAN (SHEET LS8) 3' BARK OR WOOD CHIP MULCH - FEATHER TO STEM. MULCH SHALL NOT CONTACT STEM 1' FINE COMPOST INCORPORATE 3' SOIL AMENDMENT INTO EXISTING SOIL TO 10' DEPTH PLANTING AREA PREPARATION (SEE SPECIAL PROVISIONS) INSTALL BARK OR WOOD CHIP MULCH 3' DEEP IN THE 12' RADIUS RING ONLY AROUND SEEDLINGS. (SEE PLANTING DETAIL) DESIGN PACKAGE 405 ISSUED FOR CONSTRUCTION MAY 2 2 2008 STATE OF WASHINGTON REGISTERED LANDSCAPE ARCHITECT FRANK GROZNIK CERTIFICATION NO. 721 FILE NAME L.'IPORTLAND140000W07751.405 1-5 TO 157 Stage 11DWGIBTJV0002 PS LS 405.dgn TIME 1117:16 AM DATE PLOTTED BY 412312008 fouade DESIGNED BY E. BOWERS ENTERED BY F. ELGHARABLI CHECKED BY F. GROZNIK PROJ. ENGR. L HODGSON REGIONAL ADM. D. DYE REVISION DATE REGION NO. 10 STATE WASH JOB NUMBER BY CONTRACT NA FED.AID PROJ.NO. LOCATION NA P.S. STAIN' BOX MATE P.S. STAMP BOX DATE BLLFLNGE BERGER cent {I{I T RL Sr:A rE coNsTaCCTIo\. I \C DAVID [VANS .rASSOCIATEN'w 1-405 1 -5 TO SR169 STAGE 1 - WIDENING PLANTING DETAILS Piot 12 LD2 SHEET OP AHEM GUARDRAIL BARRIER EDGE OF ROADWAY WALL FENCE SIGNS EXISTING TREE, TRUNK EXISTING VEGETATION MASS CORRIDOR EVERGREEN WEE 15' 10' 10' 10' 15' 15' 10' CORRIDOR DECIDUOUS TREE 15' 10' 10' 10' 15' 15' 10' SHRUB 8' 15' 2' 6' 6' 10' 10• RANDOM PLANTING PATTERN PLANT MATERIAL MIN. SETBACK CHART THIS CHART SUPPLEMENT SECTION 8.0231(7) OF 771E STANDARD SPECIFICA77 NOTE: TYPICAL SETBACKS FOR PLANT MATERIAL UNLESS OTHERWISE DIRECTED BY THE ENGINEER DURING LAYOUT AND STAKING OF PLANT LOCATIONS. DISTANCE NOTED IS TO STEM OR TRUNK OF PLANT. IF VEGETATION EXISTS WITHIN PLANTING AREA, SEE SETBACK CHART AREA FOR SPACING ADJUSTMENT X = PLANT SPACING (SEE PLANTING PLAN) ®= PLANT EXISTING VEGETATION SEE SETBACK CHART ®®® ®®®®®® ® PLANTING AREA WEED CONTROL SHALL INCLUDE 771E AREA BOUNDED BY THE BACK OF THE PLANT INSTALLATION AREA, THE FRONT OF EXISTING VEGETATION, AND THE ROADWAY. SEE SECTION 8.023(3) PLANTING AREA WEED CONTROL NOT 70 SCALE 20 X BARRIER, GUARDRAIL OR EDGE OF ROADWAY PLANTING AREA LAYOUT, SETBACK, AND WEED CONTROL OFFSET PLANTS TO AVOID STRAIGHT ROWS RANDOMLY MIX PLANT SPECIES TYPICAL O.C. (ON CENTER) PLANTING GRID CLUMP AND SCATTER PLANTS SO THAT AVERAGE PLANTING DENSITY IS EQUIVALENT TO GRID SPACING IF PLANTING WITHIN EXISTING VEGETATION, SEE SPECIAL PROVISIONS FOR SELECTIVE CLEARING AND PRUNING NOT TO SCALE GRADE EXISTING GRADE 3' SOIL AMENDMENT �� 00_eoe 017 STEP I SECTION VIEW STEP 2 RETAINING WALL 1 -- 2" WATER RETENTION BASIN — BOSTON IVY - LOCATION AS SPECIFIED ON PLANTING PLAN (SHEET LS8) SET PLANT VERTICALLY AT FACE OF THE WALL DIRECT VINE TOWARD THE WALL WITH DM. BAMBO STAKE. I -I I I I -I I I I -I I I I -I I I I -I I I LI 11-1111-1111-1111-1111-1111-11 EXISTING SOIL PLANTING AREA ALONG THE WALL STEP 3 STEP 4 STEP 5 NOT 70 SCALE STEP 1 PLACE 3' SOIL AMENDMENT STEP 2 INCORPORATE SOIL AMENDMENT 70 10' DEPTH PLANTING AREA SOIL PREPARATION - SEQUENCE OF WORK PLACE (' COMPOST STEP 4 INSTALL RANT (SEE PLANTING DETAIL) STEP 5 N.T.S. DATE: SHRUB - LOCATION AS SPECIFIED ON PLANTING PLAN (SHEET LS8) 3' BARK OR WOOD CHIP MULCH - FEATHER TO STEM. MULCH SHALL NOT CONTACT STEM 1' FINE COMPOST INCORPORATE 3' SOIL AMENDMENT INTO EXISTING SOIL TO 10' DEPTH PLANTING AREA PREPARATION (SEE SPECIAL PROVISIONS) INSTALL BARK OR WOOD CHIP MULCH 3' DEEP IN THE 12' RADIUS RING ONLY AROUND SEEDLINGS. (SEE PLANTING DETAIL) DESIGN PACKAGE 405 ISSUED FOR CONSTRUCTION MAY 2 2 2008 STATE OF WASHINGTON REGISTERED LANDSCAPE ARCHITECT FRANK GROZNIK CERTIFICATION NO. 721 FILE NAME L.'IPORTLAND140000W07751.405 1-5 TO 157 Stage 11DWGIBTJV0002 PS LS 405.dgn TIME 1117:16 AM DATE PLOTTED BY 412312008 fouade DESIGNED BY E. BOWERS ENTERED BY F. ELGHARABLI CHECKED BY F. GROZNIK PROJ. ENGR. L HODGSON REGIONAL ADM. D. DYE REVISION DATE REGION NO. 10 STATE WASH JOB NUMBER BY CONTRACT NA FED.AID PROJ.NO. LOCATION NA P.S. STAIN' BOX MATE P.S. STAMP BOX DATE BLLFLNGE BERGER cent {I{I T RL Sr:A rE coNsTaCCTIo\. I \C DAVID [VANS .rASSOCIATEN'w 1-405 1 -5 TO SR169 STAGE 1 - WIDENING PLANTING DETAILS Piot 12 LD2 SHEET OP AHEM APPLY WET NATIVE SEED MIX AT 85 POUNDS/ACRE SLOPE PLANTING BARE ROOT AND CONTAINER NO VEGETATION ZONE zs NOTE 1. PLANTING PIT DIAMETER FOR TREES SHALL BE NO GREATER THAN ROOTBALL DIAMETER. 2. PLANTING PIT DIAMETER FOR SHRUBS SHALL BE NO GREATER THAN ROOTBALL DIAMETER. NOTE SEE SHEET DOS FOR ADDEONAL NOTES AND DETAILS SET PLANT VERTICALLY NOT PERPENDICULAR TO SLOPE SEE PLANT MATERIAL LIST FOR SIZE AND TYPE — UPPERMOST ROOT JUST BELOW SOIL SURFACE PLACE FERTILIZER PRIOR TO BARK OR WOOD CHIP MULCH APPLICATION 3' DEPTH OF BARK OR WOOD CHIP MULCH - FEATHER DEPTH TO STEM. MULCH SHALL NOT CONTACT STEM 2' WATER RETENTION BASIN ECOLOGY MIX BED AMENDED SOIL BACKFILL WITH AMENDED SOIL SOIL LOOSENED 3' DEEPER THAN ROOTBALL DEPTH LESS THAN 5 TIMES LESS THAN 3 TIMES TREE & SHRUB PLANTING ECOLOGY EMBANKMENT PLANTING DETAIL NOT TO SCALE T 3. BARK OR WOOD CHIP MULCH SHALL BE PLACED IN 12'RADIUS AROUND EACH PLANT 4. SOAK PLANTING PIT AFTER INSTALLATION. NOT TO SCALE BALLED AND BURLAPPED FOR UNAMENDED SOIL, DIG PLANTING HOLE 3 TIMES ROOT SPREAD OR ROOT BALL DIAMETER PREVAILING WIND 4 TIMES TRUNK D/AM. 2' X r WOOD STAKE OR #6 REBAR PLAN TREE PLANTING AND STAKING 12 GAUGE GALV. WIRE OR APPROVED SUBSTITUTE TURN WIRE TIGHT AND CUT OFF EXCESS WIRE ENDS. REINFORCED BLACK RUBBER HOSE, 1' DIAM. OR APPROVED EQUAL TREE TRUNK TREE TYING NOT TO SCALE Ilh I'I 2X2 WOOD STAKES OR #6 REBAR, SEE TREE TYING DETAIL HOSEAMRE TIE OR APPROVED SUBSTITUTE SEE TREE TYING DETAIL UPPERMOST ROOT JUST BELOW SOIL SURFACE 3' WATER RETENTION BASIN, TYP PLACE FERTILIZER PRIOR TO BARK APPLICATION (SEE SPECIAL PROVISION) BACKFILL WITH EXISTING SOIL - EXCAVATED FOR PLANTING. THOROUGHLY WATER BACKFILL SOIL AFTER PLANTING EXISTING SOIL NOT TO SCALE r PREVAILING WIND ELEVATION 5" DATE: 3'DEPTH BARK OR WOOD CHIP MULCH FEATHER BARK MULCH TO BASE OF PLANT. MULCH SHALL NOT CONTACT TREE TRUNK REMOVE AS MUCH BURLAP AS POSSIBLE TO A MINIMUM DEPTH OF HALF THE ROOTBALL AFTER PLACING IN PLANTING HOLE. COMPLETELY REMOVE NON -ORGANIC OR TREATED BURLAP AND ALL STRING LACING DESIGN PACKAGE 405 MAY 2 2 2008 ISSUED FOR CONSTRUCTION STATE OF WASHINGTON REGISTERED LANDSCAPE ARCH FRANK GROZFi1K CERTIFICATION NO. 721 FILE NAME LAPORTLAND140000140778 1-5 TO 187 Stage 11DWG1BTJV0002 P8_LS 405.dgn TIME 11:03:45 AM DATE 4125/2008 PLOTTED BY fouade DESIGNED BY E. BOWERS ENTERED BY F. ELGHARABU CHECKED BY F. GROZNIK PROJ. ENGR. L HODGSON REGIONAL ADM. D. DYE REVISION DATE REO.ON STATE Na 10 WASH Joe NURSER BY CONTRACT NO. FED.AID PROJ.NO. LOCATION NO. PE STAMP SOX DATE P.S. STAMP SOS 1t. BILFINGER,BERGER a OAVIS UflHS 0 .�ASSOOIATSS.n. DATE 'MI-STATE CONSTnUCTION. 1-405 1-5 TO SR169 STAGE 1 - WIDENING PLANTING DETAILS Piot 13 LD3 MIST OF SINUS February 26, 2007 Dear Katie: Ms. Katie Chamberline Washington State Department of Transportation I -405 Project Team Permit Lead 600 — 108 Ave. NE, Suite 405 Bellevue, WA 98004 RE: Plantings for Shoreline CL Q: \Nickle Fund Project \Shoreline Plantings.doc • Thank you for your e -mail of February 13, 2007 regarding the shoreline substantial development permit issued under file number L06 -037 (Ecology permit #2006NW 80067 1). WSDOT is proposing a modification to the permit to provide up to .32 acres of new trees with a mix of native conifers, such as Sitka spruce, hemlock or cedar trees. The trees will be planted approximately 10 feet on center. You provided a plan sheet with the location of the proposed plantings identified. WAC 173 -27 -100 addresses revisions to shoreline permits. A formal permit revision is required when a substantive change is proposed to the design, terms or conditions of a project approved through a shoreline substantial development permit. Changes are considered substantive "...if they materially alter the project in a manner that relates to its conformance to the terms and conditions of the permit, the master program and/or the policies and provisions of chapter 90.58 RCW." We have determined that the proposed modification is not a substantive revision to the shoreline substantial development permit approved by the City, as defined by WAC 173- 27 -100. We strongly recommend that the landscaping plan prepared by the Design -build contractor provide the following: 1. prior to planting, the planting area be amended with organic material; 2. that the planting area be mulched with wood chips or bark after planting and 3. that irrigation be provided at least during the first season to ensure tree survival. Page 1 of 2 02/26/2007 9:31:00 AM Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 Ms. Katie Chambertine Washington State Department of Transportation I -405 Project Team February 26, 2006 • • We look forward to reviewing the landscaping plans when they are available. Please let me know if you have any questions. I can be reached at 206 - 431 -3661. Sincerely, Carol Lumb Senior Planner cc: Steve Lancaster, Director, Department of Community Development Nora Gierloff, Planning Manager Sandra Whiting, Urban Environmentalist Karen Walter, Muckleshoot Indian Tribe Allison Ray, I -405 Project Environmental Manager Sandra Lange, Planner, Department of Ecology CL Page 2 of 2 02/26/2007 9:31:00 AM Q:\Nickle Fund Project \Shoreline Plantings.doc [Mr1 1 1 A0 4 PAVING LEGEND; 095 S .ft 0.1'11"0.,W "V—• Ammare4NPen.1.0 ...A_ _ - ..mmemNiSAATI. AmMANAT7m...••• ■efare. •sge: ' TREE PLANTING AREA BEGIN PAVING E405 1107.12.20. BEGIN PAVING E405 1101.60.08 \ END PAVING E405 1105434.30 ' 'BEGIN PAVING EROS 1101.40.20 • IMPACT AREA BUFFER 5- IMPACT AREA LINE - REMOVE EXISTING IMPERVIOUS CEMENT CONCRETE SIDEWALK • REPLACE PCCP PANELS - GRIND AND OVERLAY <Ay,. IMPACT AREA LINE - PCCP APPROACH SLAB NMA OVERLAY - NMA PAVEMENT MOMENT SLAB FILE NAME PWI\EngIneer;n0004\drowIngs\shees\ TIME 1 .22.15 PM DATE 2/6/2007 PLOTTED BY chriss DESIGNED BY B. BABY ENTERED BY C. SAXE CHECKED BY L. SMITH PROJ. ENGR. R. FENTON REGIONAL ADM. 0. DYE REVISION NJ DATE TCE 'BUFFER MM. 1100. RETAINING PALL 4000 MOP 10 'MASH 100 YEAR FLOOD ,r oovrOP .vvr7tllirrefir1777 ..'""4.44.4.A." 4 4 .17 . • RETAINING WAi4 /7/ C ." • .. 14■1,411 " .1"'11".. . 'r7f.00mmk. MA N FED.AIO PROJ.NO. LOCA. ILO 09. E405 1100461.99 CS EROS 1102.67.99 ST • I 1 05 _____ __ ___ 7 d• • • 741 I,. STRIP DR . RETAINING WALL 4009 • ' • • . ... • • END PAVING • IMPA ccutrzcie.a.c...med..e.ecalr. acced cud? 1 • •.I. SlaW• 110.1 Nat BurfER--\. MACTAO 405 Corridor Program ;CO .EAR FLOOD 50041,0 BLVD T AREA LINE scurtsccatrAce eurEEN 1-405 1-5 TO SR 169 STAGE 1 - WIDENING ALIGNMENT AND PAVING 0 50 100 SCALE 10-4tE 15• Design NOT FOR CONSTRUCTION P V 3 Carol Lumb - Re: Nickel Fund shoreline plantings n � From: Sandra Whiting To: Carol Lumb Date: 02/21/2007 11:23 AM Subject: Re: Nickel Fund shoreline plantings Carol, The proposed density and the proposed tree species look fine. Maybe we could require that the entire planting area be amended with organic material prior to planting, that the planting area be mulched with wood chips or bark after planting, and that irrigation be provided at least during the first season to ensure tree survival. Sandra »> Carol Lumb 02/16/2007 5:57 pm »> Hi Sandra: I think you were cc'd on the e-mail from Katie Chamberlin on the shoreline plantings WSDOT is proposing to address some concerns of the Muckleshoots. Do you have any concerns about what they want to do? I need to do a small amendment to their shoreline permit. thanks. Carol • Page 1 of 1 file: / /C: \Documents and Settings \CAROL -L \Local Settings\ Temp\ XPGrpWise \45DC2BCOtuk- mail6300... 02/22/2007 FILE NAME PW, \Engineering \004 \drOVings \sheets \400000040d.pV003.dgn - -- ..F. s..v aa, Mit - ..a. Fur• aa. - u+rzmAR- I-405 I 5 T O SR 169 STAGE 1 - WIDENING TIME 1,22.15 PM .41. 0.. m. EED.AID PROJ.NO. P1J3 DATE 2/6/200T 10 WASH PLOTTED BY chriss 405 Corridor Program G �(/ +>,..r DESIGNED BY B. HART ..14 mm„ Y SRC, ENTERED BY C. SAXE CHECKED BY L. SMITH 0• °i4 "O' 1.1:411011 0 ' PROJ. ENGR. R. FENTON ALIGNMENT AND PAVING REGIONAL ADM. O. DYE REVISION DATE BY 09 5 \ \ \ RETAINING WALL 4008 1100 E405 1100.67.99 CS E405 1102.67.99 ST E405 LINE •1105 • • • 6 r4 .¢iR.N' .3r .1 .. .WW Pyw RETAINING WALL 4009 `«�4uc�.•'— w•,•.as+"' - w••- +..s..d o rs : !. _ ± ►- _'�"s° +'s - ir y� - 4 °"•e { uZZG L . ‘ 1,44 r(LS4lLLtLY • G„ C F K CHUM 100 YEAR FLOOD fi i�• AF 4ry �Ft PAVING LEGPDI IMPACT AREA LINE - REMOVE EXISTING IMPERVIOUS - CEMENT CONCRETE SIDEWALK - REPLACE PCCP PANELS - GRIND AND OVERLAY NUM IMPACT AREA LINE I yP yFS N RO BUFFER & • 100 R FLOOD ' 1 7 171 1 n y111711 0.61 �� n�EAR � �� "1Jfosn?snissnin7ris7m�sl���m �'�^��5�+r+a 1LL�� . - - ._ ` RETAINING WAIL 4115 "4� . 'i � id F ' 4'• T �� � - +3i K � ° •��i+ �� � +7 N 6yd�• �:s�+�� .a�.ih � . _ - PCCP APPROACH SLAB - NAM OVERLAY - AMA PAVEMENT Nv - MOMENT SLAB IMPACT AREA'LINE TCE BUFFER 41 BUFFER py7 • 711 7117T'7 TREE PLANTING AREA BEGIN PAVING 0405 1107.72.20 BEGIN PAVING E405 1107.60.OB' END PAVING 0405 1105.3..30 ' BEGIN PAVING 0405 1107..8.20 END PAVING 0405 1105.04.30 m. Pa \ \_-OHWM 100 YEAR FLOOD --\\ SOUTHCENTER BOO T AREA LINE (CR!!(LbYtl.44W4!/t! BUFFER 0 10 100 SCALE IJIifSET 15% Design NOT FOR CONSTRUCTION Carol Lumb - RE: Modification to the 1-4 5, 1 -5 to SR 169 Project Shoreline Substanti Development Permit From: "Katie Chamberlin" < katie .chamberlin @i405.wsdot.wa.gov> To: "Carol Lumb" <clumb @ci.tukwila.wa.us> Date: 02/13/2007 12:32 pm Subject: RE: Modification to the 1-405, 1 -5 to SR 169 Project Shoreline Substantial Development Permit CC: Hi all, "Sandra Whiting" <swhiting @ci.tukwila.wa.us >, "... I would like to make one correction to the email I sent out earlier today. It should have stated that WSDOT will plant up to 0.32 acres of trees in the buffer of the Green River. Please let me know if you have any questions. Thanks, Katie Katie Chamberlin 1-405 Project Team Permit Lead Direct Line: (425) 456 -8570 Original Message From: Katie Chamberlin Sent: Tuesday, February 13, 2007 10:22 AM To: 'Carol Lumb' Cc: Sandra Whiting; Allison Ray Subject: Modification to the 1-405, 1 -5 to SR 169 Project Shoreline Substantial Development Permit Hi Carol, As you know, during negotiations with the Muckleshoot Indian Tribe Fisheries Division, WSDOT committed to planting urban forest vegetation within the buffer of the Green River. This activity was not included in the Shoreline Substantial Development Permit (L06 -037) issued by the City on November 22, 2006. This email is in response to your February 6, 2007, email, in which you asked for some additional information related to the proposed plantings. WSDOT will plant urban forest in the Green River buffer located within WSDOT's right -of -way. Please see the "Tree planting area" on the attached plan sheet for the proposed planting area. The stream buffer will be planted with native conifers, such as Sitka spruce, hemlock, or cedar trees. A total of 0.32 acres of trees will be planted at approximately 10 feet on- center. The planting plans will be created by the Design -Build contractor at a later phase of design. WSDOT will provide copies of the planting plans to the City once we receive them from the contractor. If you need any additional information, please do not hesitate to contact me. Carol Lumb RE: Modification to the I-4 I -5 to SR 169 Project Shoreline Substanti Development Permit Thanks, Carol. Katie Katie Chamberlin 1-405 Project Team Permit Lead Direct Line: (425) 456 -8570 Original Message From: Carol Lumb [mailto:clumb @ci.tukwila.wa.us] Sent: Tuesday, February 06, 2007 11:19 AM To: Katie Chamberlin Cc: Sandra Whiting; Allison Ray Subject: Re: Clarifications on the Special Permission, Director, fromthe City Hi Katie: Thanks for your e-mail and the request for clarifications on a couple of the conditions of approval for the Special Permission Director permit. For condition #2, it is ok to install BMPs prior to sending us the final TESC and SPCC documents. We will have had a chance to review the BMPs prior to their implementation, per condition #4. For condition #3, it is ok to provide the landscaping plans when you receive them, whether it is before construction begins or after. On the shoreline permit, we would welcome plantings in the shoreline. This is a minor modification to the shoreline permit, so please provide us with a brief explanation of what you plan to do and a site plan that identifies the area and generally what you plan to plant. If any trees are involved, we will need to review their location so there are no conflicts if there is a levee adjacent. Let me know if you need any thing else. Carol »> "Katie Chamberlin" < katie .chamberlin @i405.wsdot.wa.gov> 02/01/2007 4:33 pm »> Hi Carol, Thanks for sending on the Special Permission, Director, Sensitive Areas Ordinance Deviations late last week! We've reviewed the document and have just two comments /clarifications for you. On page 2, # 2 - WSDOT would like to clarify that it is permissible to provide the City with the final TESC and SPCC plans prior to the beginning of earth- moving activities in Tukwila. We foresee that there could be some site preparation activities, such as installation of BMPs, that occur before final TESC and SPCC plans are completed for the entire project. Can you confirm that this would be considered allowable by the City? On page 2, # 3 - WSDOT will not have the landscaping plans prior to the Caro m l Lub - RE: Modification to the 1 -44 1 -5 to SR 169 Project Shoreline Substan Development Permit start of construction, but can commit to providing the plans to the City when they are submitted to us. Lastly, and this is not an issue that has to do with the Special Permission issued by the Director, we are thinking of planting about 0.33 acres of native vegetation along the east bank of the Green River, just north of 1-405. The plantings would occur in an area that does not have much existing vegetation at all. The native vegetation plantings in this area was a suggestion made by Karen Walters of the Muckleshoot Indian Tribe. What impacts would this have on the Shoreline Substantial Development Permit issued by the City, given the fact that this enhancement work was not included in the permit? If you want to give a call rather than email, I am available at 206.372.3159 all day on Friday. Thanks! Katie Katie Chamberlin 1 -405 Project Team Permit Lead 600 108th Ave NE, Suite 405 Bellevue, WA, 98004 Direct Line: (425) 456 -8570 Fax: (425) 456 -8600 This e-mail and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are NOT the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be advised that you have received this e-mail in error and that any use, dissemination, forwarding, printing or copying this e-mail is strictly prohibited. 1... FHA .+ r 09 5 ti S 1 1100. E405 1100.57.99 CS E405 1102.67.99 ST • I -a 05 � OS � IN E '1105 ��__� �. �._._.�•.1�_ -PC E405 1101.72.20 BEGIN PAVING ENOS 1107.60.08: \ END PAVING ENDS 1105.34.30 BEGIN PAVING (405 1107.48.20 4 PAVING LEGEND; TIME 1122:15 PM DATE 2/G/200T PLOTTED BY chrism DESIGNED BY B. HART ENTERED BY C. S AVE CHECKED BY L. SMITH PROJ. ENGR R. FENT) REGIONAL ADM. D. DYE 100 YEAR FLOOD W ' 1Vir' • n'n;f F7Y77 Pwor f AR wN, %4 l '>;iy /rte - < A. p 0.6L 'n�+Ainniss L, \ RETAINING WAIL 41I5 \ "� i T - - i IL WG� —..—. —.. -- —_ — • - ---- Pt" - yam, F L( to •r — RETAINING WALL 4008 Y'r _ � ��: : M RETAINING WALL 4009 ��� -• - -• _ IMPACT AREA LINE �i — T - REMOVE EXISTING IMPERVIOUS - CEMENT CONCRETE SIDEWALK - REPLACE PCCP PANELS - GRIND AND OVERLAY vv IT' IMPACT AREA LINE LO /SAO fyFNE REVISION IMPACT AREA-LINE BUFFER T �T 3 fis.v� % ICE BUFFER - PCCP APPROACH SLAB - HMA OVERLAY - NINA PAVEMENT - MOMENT SLAB FILE NAME PW1 \EngIneer in0\ 004 \OrXMIngs \Sheet s\4p30000040C_pV003.0n DATE BY 74Ky44 VHF 10 JON $na WASH FEO.AID PROJ.NO. LOLA T ION NO. BUFFER /7 817 2 "Vn TREE PLANTING AREA BEGIN PAVING ENO PAVING �( E405 1105.04.30 I MPA f. OHWu 0 00 YEAR FLODD 511457,1E 405 Corridor Program 50UTHCENTER BLVD AREA LINE (LCUILFI/raCt.M4/ • '\- - - BUFFER 1 -405 1 -5 TO SR 169 STAGE 1 - WIDENING ALIGNMENT AND PAYING La N 0 50 100 SCALE lyi4'EET 15% Design NOT FOR CONSTRUCTION PV3 December 4, 2006 Ms. Katie Chamberlin Washington State Dept. of Transportation 600 — 108 Avenue NE, Suite 405 Bellevue, WA 98004 Dear Ms Chamberlin: • STATE OF WASHINGTON DEPARTMENT OF ECOLOGY • Northwest Regional Office • 3190 160th Avenue SE • Bellevue, Washington 98008 -5452 • (425) 649 -7000 I certify that I mailed a copy of this document to the persons and addresses listed herein, postage prepaid, in a re eptacle for United States mail in 13e i t e u Washington, 11 2.. / 4 I) 6 Signature Subject: City of Tukwila Permit # L06 -037 — Approved Katie Chamberlin, WSDOT - Applicant Shoreline Substantial Development Permit # 2006 NW 80067 1 Purpose: Notification of Receipt of Approved Substantial Development Permit (SDP) RECEIVE ' 0 5 2006 o commuN Y On November 28, 2006, the Department of Ecology received notice that the City of Tukwila approved your application for an SDP. Your permit is for paving 867 feet of new pavement on Interstate 405, within shoreline jurisdiction of the Green River. By law, local governments must review all SDPs for compliance with the following: • The Shoreline Management Act (Chapter 90.58 RCW) • Ecology's Substantial Development Permit approval criteria (Chapter 173 -27 -150 WAC) • The Tukwila Local Shoreline Master Program Local governments, after reviewing the SDP for compliance, are required to submit the SDPs to Ecology for filing. Your approved SDP has been received and filed by Ecology. What Happens Next? Before you begin activities authorized by this permit, the law requires you to wait at least 21 days from the date we received the decision letter from Tukwila on November 28, 2006. This waiting period allows anyone who (including you) disagrees with any aspect of this permit, to appeal the decision to the state Shorelines Hearings Board. You must wait for the conclusion of an appeal before you can begin the activities authorized by this permit. Katie Chamberlin December 4, 2006 Page 2 of 2 • • If no appeal is submitted you may begin activities any time after December 19, 2006. The Shorelines Hearings Board will notify you by letter if they receive an appeal. We recommend, however, you contact the Shorelines Hearings Board before you begin permit activities to ensure no appeal has been received. They can be reached at (360) 459 -6327 or http: / /www.eho.wa. govBoards /SHB.asp. If yo want to appeal this decision, you can find appeal instructions (Chapter 461-08 WAC) at the Shorelines Hearings Board website above. They are also posted of the website of the Washington State Legislature at: http: / /apps.leg.wa.gov /wac. Other federal, state and local permits may be required in addition to this shoreline permit. If you have any questions about this letter, please contact Betty Renkor at (425) 649 -4309. Sincerely, BR:ca Betty Renkor, Shorelands Specialist Shorelands and Environmental Assistance Program cc: Carol Lumb, City of Tukwila From: City of Tukwila Department of Community Development 6300 Southcenter Blvd. Suite 100 Seattle, WA 98188 Is the applicant the property owner? Yes Shoreline Management Act Permit Data Sheet and Transmittal Letter To: Betty Renkor Department of Ecology, NW Office Shoreland & Environmental Assistance Program 3190 160 Ave. SE Bellevue, WA 98008 Date of Transmittal: November 24, 2006 Date of Receipt: Type of Permit: Substantial Development Local Government Decision: Approval Applicant's Representative: Name: Katie Chamberlin Address: same Applicant Information: Name: Washington State DOT Address: 600 -108 Ave. N.E., Suite 405 Bellevue, WA 98004 ATTN: I -405 Nickel Fund Improvements Phone: same Phone: 425- 456 -8570 Location of the property: Interstate 405 right of way from Interstate 5 east to Tukwila city limits Water Body Name: Green River Shoreline of Statewide Significance: yes Environment Designation: Urban Description of Project: minor road widening Notice of Application Date: June 21, 2006 Final Decision Date: November 22, 2006 By: Carol Lumb, Senior Planner, City of Tukwila DCD Phone Number: (206) 431 -3661 CL Page 1 of 1 11/22/2006 12:03:00 PM Q;Wickel Fund Improvements \Shoreline- cover.doc City of 7'Idk4P/d Comprehensive Plan N/A (road right of way) Designation/Zoning N/A (road right of way) District: CL Q: \Nickel Fund Improvements \L06 -037 NOD.doc Department of Community Development Steve Lancaster, Director NOTICE OF DECISION TO: Allison Ray, Washington State DOT Applicant King County Assessor, Accounting Division Washington State Department of Ecology U.S. Army Corps of Engineers Karen Walter, Muckleshoot Indian Tribe This letter serves as a notice of decision and is issued pursuant to TMC 18.104.170 on the following project and permit approval. I. PROJECT INFORMATION Project File Number: L06 -037 Applicant: Washington State Department of Transportation Type of Permit Applied for: Shoreline Substantial Development Permit Project Description: Minor road widening in the Low Impact and High Impact Shoreline Environment Location: Along I -405 right of way adjacent to the Green River, east of I -5 Associated Files: L06 -040, Special Permission Director II. DECISION • November 22, 2006 SEPA Determination: The Washington State DOT acted as the SEPA Responsible Official and previously: 1 determined that this application does not require a SEPA threshold determination because it is categorically exempt. determined that the project, as proposed, does not require a threshold determination under SEPA because it qualifies as a planned action pursuant to WAC 197 -11 -172, that the probable significant adverse environmental impacts of the project were adequately analyzed in the EIS previously prepared for the planned action and will implement the conditions and mitigation measures imposed by the planned action approval. X determined that the project, as proposed, does not create a probable significant environmental impact and issued a Determination of Non- Significance (DNS), or Page I of 2 11/22/2006 1:49:00 PM Steven M. Mullet, Mayor 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 } • determined that the project does not create a probable significant environmental impact if specific mitigation conditions are imposed on the project and issued a Mitigated Determination of Non - Significance (MDNS) requiring compliance with those mitigation conditions, or determined that the project creates a probable significant environmental impact and required preparation of an Environmental Impact Statement (EIS) on the project. Decision on Substantive Permit: The City Community Development Director has determined that the application for a Shoreline Substantial Development Permit does comply with applicable City and state code requirements and has approved that application based on the findings and conclusions contained in the staff report. The Decision on this Permit Application is a Type 2 decision pursuant to Tukwila Municipal Code §18.104.010. Other land use applications related to this project may still be pending. III. YOUR APPEAL RIGHTS One administrative appeal to the Shorelines Hearings Board of the Decision is permitted. Any person appealing to the Shorelines Hearings Board may raise certain SEPA issues as part of the appeal to the Shorelines Hearings Board. Appellants should consult the rules and procedures of the Shorelines Hearings Board for details. IV. PROCEDURES AND TIME FOR APPEALING The requirements and procedures for appeals to the Shorelines Hearings Board are set forth in RCW 90.58 and WAC 461.08. V. INSPECTION OF INFORMATION ON THE APPLICATION Project materials including the application, any staff reports, and other studies related to the Shoreline Substantial Development Permit are available for inspection at the Tukwila Department of Community Development, 6300 Southcenter Blvd., Suite 100, Tukwila, Washington 98188 from Monday through Friday between 8:30 a.m. and 5:00 p.m. The project planner is Carol Lumb, who may be contacted at 206-431 - 3661for further information. Property owners affected by this decision may request a change in valuation for their property tax purposes. Contact the King County Assessor's Office for further information regarding property tax valuation changes. G artp gtfA4A � Department of Community Development City of Tukwila CL Q: \Nickel Fund Improvements \L06 -037 NOD.doc Page 2 of 2 11/22/2006 1:49:00 PM 1 0 0 a WETLAND 0.1R WETLAND 0.15R WETLAND 0.25M WETLAND 0.3R WETLAND 0.4L WETLAND 0.5L WETLAND 0.81 WETLAND 0.9R WETLAND 1.7R 11 8 PURPOSE: Roadway improvements z WETLAND 2.2R WETLAND 2.31R WETLAND 2.6L WETLAND 2.811 WETLAND 2.9L WETLAND 24.7R WETLAND 25.71 WETLAND 25.0L O STREAM 09.GR -0.2 11 STREAM 09.RH -3.0 2 O STREAM 09.GR -0.4 12 STREAM 09.RH -3.0 O STREAM 09.GR -0.7 13 STREAM 0811N-3.7 0 STREAM 09.0W-0.8 14 STREAM 09.SC -2.8 0 STREAM 09.GR -1.8 15 STREAM 09.SC -25.7 © STREAM 09.SC -2.8 o 0 STREAM 09.SC -2.8 9froro 0 STREAM 09.RH -2.8 0 STREAM 09.RH -2.8 10 STREAM 09.SC -2.8 PRING MI IOck I-405,1 -5 to SR169 SR167, 1405 to SW 41ST ST REFERENCE {: 200600097 APPLICANT: WSDOT Key Map & Vicinity Map SW 7TH ST SUNSET �S BOTH ST) E • O El a a El TD -20151 TD -20351 TD -2045R TD -2047R TD -2050R TD -20541 TD -2108L 2 PROPOSEDIRETAIN: 1.7 acres of impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEARIAT: Renton COUNTY: King STATE: WA DATE: 428/08 0 a 10 m TD -2117L TO -21181 TD -2116R TD -2119L TD -2119R TD -2120R TD -2127L e� (SOUH): ONG: - 122 °13'02" LAT: 47 °2636" 20 TD -2128L TD -2148L TD -2158L TD -21551 TD -2159L TD -2162R TD -1065L HORMONTAL DATUM: NAD 83191 VERTICAL OATUM: NAVD 88 SHEET 2 OF 27 u6pyianuuaaio p0b0e000xdms jeAs6up/teapmcOupeaui SSIJyO 900Z /E SHORELINE MANAGEMENT ACT OF 1971 PERMIT FOR SHORELINE MANAGEMENT SUBSTANTIAL DEVELOPMENT File Number: L06 -037 Applied: 05/23/2006 Approved: 11/22/2006 Expiration: 11/27/2008 City *Tukwila Steven M. Mullet, Mayor Department of Community Development 6300 Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 Phone: 206 - 431 -3670 Fax: 206 - 431 -3665 Web site: http://www.ci.tukwila.wa.us Upon the following property: Address: Parcel Number: Section/Township /Range: SE 23- 23 -0 -4 AND SW 24 -23 -04 The following master program provisions are applicable to this development: Circulation Element Goals Conservation Element Goals Development under this permit shall comply with the following conditions. Steve Lancaster, Director A permit is hereby granted to: WASHINGTON STATE DOT, ATTN ALLISON RAY to: SHORELINE SUBSTANTIAL DEVELOPMENT PERMIT FOR I -405, "NICKEL FUND" IMPROVEMENTS FROM I -5 TO SR -169, TO INCLUDE HIGHWAY WIDENING AND RE- STRIPING SOME OF WHICH FALL WITHIN THE SHORELINE ENVIRONMENT. This permit is granted pursuant to the Shoreline Management Act of 1971 and nothing in this permit shall excuse the applicant from compliance with any other Federal, State or local statutes, ordinances or regulations applicable to this project, but not inconsistent with the Shoreline Management Act (Chapter 90.58 RCW). This permit may be rescinded pursuant to RCW 90.58.140(8) in the event the permittee fails to comply with the project as approved and any conditions thereof. CONSTRUCTION PURSUANT TO THIS PERMIT MAY NOT BEGIN AND IS NOT AUTHORIZED UNTIL TWENTY -ONE (21) DAYS FROM THE DATE OF FILING WITH THE DEPARTMENT OF ECOLOGY (D.O.E.) AS DEFINED IN RCW 90.58.140(6) AND WAC 173 -14 -090, OR UNTIL ALL REVIEW PROCEEDINGS INITIATED WITHIN TWENTY -ONE (21) DAYS FROM THE DATE OF SUCH FILING HAVE TERMINATED; EXCEPT AS PROVIDED IN RCW 90.58.140(5)(a)(b)(c). Pursuant to RCW 90.58.180 the decision by the City of Tukwila to issue this Shoreline Substantial Development Permit may only be appealed to the Shoreline Hearing Board. Appeals must be filed with the Shorelines Hearing Board within 21 -days from the filing of this permit with D.O.E. as defined in RCW 90.58.140. For more detail information on appeals, refer to RCW 90.58 and WAC 461.08. /VQ{Ea...∎a e 22, 2,01 10 Date: Steve Lancaster, Director of Department of Community Development Construction or substantial progress toward construction must begin within two (2) years from the effective date of the permit (the date the permit is filed with D.O.E.), per RCW 90.58.143(4). doc: SHORELINE2 L06 -037 Printed: 11 -22 -2006 November 22, 2006 • City of Tukwila Department of Community Development Steve Lancaster, Director 1. PROJECT DESCRIPTION: 2. POLICIES OF THE SMA/SMP: MEMORANDUM TO: Steve Lancaster, Director FM: Carol Lumb, Se or Planner RE: Shoreline Substantial Development Permit: L06 -037, Washington State Department of Transportation I -405 Nickel Fund Project The Washington State Department of Transportation (WSDOT) will be constructing improvements along I -405 between I -5 and the Cedar River in Renton. The work in the shoreline involves the 867 square feet of new pavement and impacts to 6,556 sq. ft. The paving takes place only in the High Impact Environment of the shoreline. Attachment A is a copy of the site plan identifying the area within the shoreline where work will take place. The site is within the jurisdiction of the Tukwila Shoreline Management Program (SMP). This program was adopted in June, 1974 and amended March 16, 1982. The City's SMP was reviewed and approved by the State Department of Ecology as being consistent with the State Shoreline Management Act, adopted in 1971. The Shoreline Master Plan establishes three management zones adjacent to the Green/Duwamish River: River Zone: An impact buffer area which provides for resource protection, flood control maintenance, pollution control and landscape enhancement. This zone includes the first 40 feet from the mean high water mark. Low Impact Zone: A transition area intended to minimize physical and visual impact on the river zone while accommodating shoreline development. This zone includes the second 60 feet from the mean high water mark. High Impact Zone: An area to provide for more intensive use of the shoreline resource. This zone includes the area from 100 feet to 200 feet from the mean high water mark. Steven M Mullet, Mayor CL Page 1 of R 11/22/2006 3:29:00 PM . \N:,,A„ I f' ..d I1 J.,..! \©b r t3...ff 5300 Southcenter Boulevard, . Suite #I?. u • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 L06 -037: 1-405 Nickel Fund Improvements Shoreline Substantial Development Permit • • The applicable policies of the City's Shoreline Management Program are set forth below along with a discussion of the proposed project. City of Tukwila Shoreline Master Plan Goals and Policies: Overall Goals: 1. Promote reasonable and appropriate use of the shorelines, which will promote and enhance public interest. 2. Protect against adverse effects against the public health, the land, its vegetation and wildlife and the waters and their aquatic life within Tukwila. 3. Protect public rights of navigation. 4. Recognize and protect private property rights consistent with public interest. 5. Preserve and protect fragile natural resources and culturally significant features. 6. Preserve and protect fragile natural resources and culturally significant features. 7. Provide safe and reasonable access for the public to the shorelines. 8. Recognize, protect, and improve aquatic habitats and spawning grounds of the Green River, which are invaluable natural resources. 9. Recognize, protect and improve those wildlife habitats, which are valuable natural resources of the State. 10. Encourage recreational activities unique to or dependent upon the use of the river which benefit the public interest. Response: Many of the above criteria do not apply to this project as it is a proposal to pave 867 square feet of additional roadway along the existing I -405 corridor in Tukwila in the high impact environment of the shoreline and 6,556 sq. ft. of "impact area" identified by WSDOT. WSDOT provides the following description of the impact areas: "The impact areas indicated on the permit drawings will have a series of phased activities that will precede the final paving that is identified. Roadway clearing and grubbing will be conducted first to clear the project footprint, and then drainage facilities will be installed for catchments and conveyance of stormwater to treatment facilities. The construction and installation of walls, traffic barriers and minor pavement widening will be followed by the installation of signing, lighting, and traffic technologies. All of these activities will be confined to the "limit of construction" line indicated on the permit drawings." The paving takes place primarily in the High Impact Environment of the shoreline, and is a permitted use. Adjacent land uses consist of other office uses and Southcenter Shopping Towne shopping center. The Green River Trail runs underneath the I -405 overpass along the river. The project will not discharge storm water directly into the river or otherwise impact the shoreline environment. A new stormwater detention pond will be constructed outside the shoreline environment as part of this project, which will detain water runoff CL Page 2 of R 11/22/2006 3:29:00 PM Q: \Nickel Fund Project \SMP Staff Rpt.doc L06 -037: I -405 Nickel Fund Improvements Shoreline Substantial Development Permit • • from the freeway and then discharge it to the Nelson Side Channel, a Type 2 wetland adjacent to the river. To the extent that minor road widening improves the flow of traffic along I -405, the project might promote economic development in the City, which is one aspect of enhancing the public interest, however, this project is expected to have minimal impact on the local economy. The project will not interfere with the navigation of the Green River. There are no culturally significant features on the site. The project will not interfere with the aquatic habitat and spawning grounds found in the Green River. While the Green River trail runs underneath the I -405 overpass, public access to the trail is not directly available from the freeway. Circulation Element Goals: 1. Encourage a safe, convenient and diversified circulation system to assure efficient movement of persons during their daily and other activities with minimum disruption to the shoreline environment and minimum conflict between the different users. 2. Encourage a balanced system for transporting people and moving goods in exiting corridors. The Circulation Element of the City's Shoreline Master Program applies to the location of proposed major roads, transportation routes and other public facilities within the shoreline. The proposed project involves the minor expansion of an existing major regional interstate highway that crosses the Green River. Conservation Element Goals: 1. Encourage preservation of unique, fragile and scenic elements, and of non- renewable natural resources; assure continued utilization of the renewable resources. 2. Encourage the preservation of as much as possible of the natural character of the river and its shoreline. 3. Encourage the preservation of resources and ecology of the river and its shoreline. 4. Water quality in the river should be sufficiently high to permit human use and provide a suitable use and habitat for desirable forms of aquatic life. Response: The natural character along most of the river in the City has been altered to a major extent due to the construction of levees and revetments to provide flood protection and the construction of urban uses. The minor widening of I -405 will not affect the resources or ecology of the river. CL Page 3 of 8 11/22/2006 3:29:00 PM Q: \Nickel Fund Project \SMP Staff Rpt.doc L06 -037: I -405 Nickel Fund Improvements Shoreline Substantial Development Permit 3. SHORELINE REGULATIONS • Following are the review criteria as contained in the Tukwila Shoreline Regulations located in Tukwila Municipal Code, Chapter. A. TMC 18.44.110 General Shoreline Regulations All uses within the shoreline overlay district must conform to the following general regulations: 1. The use is in conformance with the regulations of the underlying zone district. Response: The site is highway right of way. The widening is consistent with the function of the highway as one of the major interstates in the region. 2. The use does not conflict with the goals and policies of the shoreline master program or the provisions of the Shoreline Act and shoreline regulations. Response: Section 2 (pages 1 -3), above is a discussion of the goals of the City's adopted Shoreline Management Program. The proposed project is consistent with the City's adopted Shoreline Management Program. 3. No structures or accessory facilities shall be located over the river unless such structure protects or promotes the public interest. Response: A highway overpass spanning the Green River already exists in the location where the road widening is taking place. The road widening does not take place in the River Environment; some clearing and a very small amount of paving, takes place in the Low Impact Environment; the majority of the clearing and paving take place in the High Impact Environment, the portion of the shoreline environment where more intensive uses are permitted. 4. There shall be no disruption of existing trees or vegetation within the river environment unless necessary for public safety or flood control, or if allowed as part of an approved shoreline substantial development permit; Response: No disruption of any existing vegetation in the River Environment will take place as the overpass spans this area. 5. No effluent shall be discharged into the Green River which exceeds the water quality classification as established by the State for the adjacent portion of the river. Response: No effluent will be discharged into the Green River. 6. All State and federal water quality regulations shall be strictly complied with. CL Page 4 of 8 11/22/2006 3:29:00 PM Q: \Nickel Fund Project \SMP Staff Rpt.doc L06 -037: I -405 Nickel Fund Improvements Shoreline Substantial Development Permit • Response: The project will comply with all State and federal water quality regulations. 7. Wildlife habitat in and along the river should be protected. Response: Wildlife habitat in and along the river will not be altered by the construction of this project. 8. All perimeters of landfills or other land forms susceptible to erosion shall be provided with vegetation, retaining walls or other satisfactory mechanisms for erosion prevention. Response: WSDOT uses the Highway Runoff Manual to address stormwater runoff for their projects. Ecology Embankments will be used for water quality treatment and flow control will be achieved by using detention ponds. Ecology Embankments are a stormwater treatment facility constructed in the pervious shoulder area of a highway, consisting of a vegetation- covered French drain containing filter media. Stormwater from the freeway will be directed to a new stormwater pond that will be constructed outside the shoreline environment. Water from the stormwater pond will discharge into the Nelson Side Channel wetland, adjacent to the river. 9. All necessary permits shall be obtained from federal, State, County or municipal agencies. Response: A Joint Aquatic Resource Permit Application has been made to the appropriate State and Federal Agencies for the filling of wetlands that will occur outside of the shoreline. The State Department of Ecology will review the shoreline permit. 10. Dredging for purposes other than for navigational improvements or flood control is prohibited. Response: No dredging is involved with this project. 11. Mining is prohibited along the river shoreline. Response: No mining is involved with this project. 12. Solid waste disposal is prohibited along the river shoreline. Response: No solid waste disposal is involved with this project. 13. No property will be acquired for public use without dedication by or just compensation to the owner. CL Page 5 of 8 11/22/2006 3:29:00 PM Q: \Nickel Fund Project \SMP Staff Rpt.doc L06 -037: I -405 Nickel Fund Improvements Shoreline Substantial Development Permit • Response: No property is proposed for acquisition with this project. 14. Landfilling is prohibited within the river channel unless such landfill is determined by the Planning Commission to protect or promote the public interest. Response: This project does not propose any landfilling within the river channel. 15. (R)emoval of any cottonwood tree within the river environment or the low impact environment, which tree is 12 inches or greater in diameter as measured 4.5 feet above grade, shall be subject to the requirements of TMC Chapter 18.54, Tree Regulations. Response: Trees will be removed as part of this project. The City's Tree Regulations exempts construction and maintenance of streets and utilities within City approved rights -of -way and easements. Removal of hazardous trees is also permitted — some trees will be too close to the widened road for safety purposes. B. TMC 18.44.130 Specific shoreline regulations — river environment. The River Environment consists of a 40 -foot wide management zone, measured from the mean high water mark. Uses in the River Environment are restricted to such uses as footpaths or trails, recreation facilities, dikes, bridges, or fire lanes. No work is taking place within the River Environment. C. TMC 18.44.140 Specific shoreline regulations — low impact environment The low impact environment consists of a 60 -foot wide management zone, beginning at the end of the river environment and proceeding 60 feet landward. Types of uses permitted in the low impact environment include structures not exceeding 35 feet in height, adequately screened or landscaped parking/loading and storage facilities, utilities, public or private streets or signs. Within the low impact environment for this project, a small portion of the 867 sq. ft. of new paving will occur and approximately 2400 sq. ft. of "impact area" will be affected. The activities taking place in the impact area are as follows: first, roadway clearing and grubbing to clear the project footprint, then drainage facilities will be installed for catchments and conveyance of stormwater to treatment facilities. After the minor pavement widening occurs in the low impact environment, any needed signage and lighting will be installed. D. TMC 18.44.150 Specific shoreline regulations — high impact environment The high impact environment permits all uses allowed in the underlying zoning district. The majority of the paving (867 sq. ft.) takes place in the high impact environment, along with approximately 4300 sq. ft. of impact area identified in the high impact environment. CL Page 6 of 8 11/22/2006 3:29:00 PM Q: \Nickel Fund Project \SMP Staff Rpt.doc L06 -037: I -405 Nickel Fund Improvements Shoreline Substantial Development Permit 4. COMMENTS: • • Notice of Application for this project was issued on June 21, 2006. The comment period closed on July 21, 2006. On October 25, 2006, the Muckleshoot Indian Tribe provided a copy of a letter sent to the U.S. Army Corps of Engineers on this project. The Tribe's concerns relate primarily to impacts to proposed wetland fill and impacts to riparian habitat associated with Gilliam Creek. The Tribe's comments do not relate specifically to the work taking place in the shoreline environment and will be addressed in the Special Permission Director staff report. WSDOT is in the process of responding to the comments. (See Attachment F). 5. SEPA: WSDOT issued its own SEPA determination, a Determination of Nonsignificance on October 2, 2006. CONCLUSIONS 1. The project site is located along the I -405 corridor right -of -way, a portion of which falls within the shoreline environment. The project will construct an additional 867 sq. ft. of paved roadway, the majority of which will be located in the High Impact shoreline environment. 2. The I -405 corridor runs through the urban center of Tukwila, with office and multifamily uses on the north side and retail and warehousing uses on the south side. The interstate links I -5 and the Eastside cities of Newcastle, Bellevue, Redmond, Kirkland and Bothell. 3. As a minor road widening, the project will have minimal impact on the economy of Tukwila. The project will not interfere with the navigation of the Green River. 4. There are no culturally significant features on the site. Development of the site will not interfere with the aquatic habitat and spawning grounds found in the Green River. 5. Public access is not directly available to the river from the highway. The Green River Trail runs underneath the overpass that crosses the River. 6. The project is consistent with the General Shoreline Regulations set forth in TMC 18.44.110: A. The use is consistent with the goals and policies of the City's adopted Shoreline Management Program. B. No additional structures or accessory facilities will be located over the river; C. The project will not disrupt existing trees or vegetation within the river environment. No cottonwood trees within the river environment will be removed; CL Page 7 of 8 11/22/2006 3:29:00 PM Q: \Nickel Fund Project \SMP Staff Rpt.doc L06 -037: I -405 Nickel Fund Improvements Shoreline Substantial Development Permit 6. RECOMMENDATION • • some trees in the Low and High Impact Environment will be removed for safety purposes to add road area. This is exempt under the City's Tree Ordinance. D. No effluent will be discharged into the Green River; storm water will be addressed via the Highway Runoff Manual using Ecology Embankments and a new stormwater detention pond that will then discharge into the Nelson Side Channel wetland adjacent to the river. E. All state and federal water quality regulations will be strictly complied with. F. Wildlife habitat in and along the river will not be disturbed by the construction of this project G. All necessary permits will be obtained for this project. H. No dredging or mining will occur with the project. I. No property will be acquired for public use without dedication by or just compensation to the owner. J. No landfilling is proposed within the river channel. 7. The project is consistent with the requirements of TMC 18.44.130, river environment. No work is taking place in the River Environment. 8. The project is consistent with the requirements of TMC 18.44.140, low impact environment — with a very small amount of the 867 sq. ft. of paving occurring in this environment along with approximately 2400 sq. ft. of impacts from the construction occur in this environment The majority of the work takes place in the High Impact Environment. 9. The project is consistent with the requirements of TMC 18.44.150, high impact environment. The majority of the paving, approximately 850 sq. ft., takes place in this environment. 10. Comments were received from the Muckleshoot Indian Tribe after the close of the 30 day comment period. The issues raised by these comments relate to the fill of wetlands and riparian impacts to Gilliam Creek. 11. A determination of non - significance was issued by the Washington State Department of Transportation on October 2, 2006; no appeals were received by the October 14, 2006 deadline. Approve the shoreline substantial development permit. Attachments: A. Shoreline Substantial Development Permit Application Narrative B. Permit Drawings C. Photos of Project Area D. DCD Technical Comments Letter E. WSDOT response to Technical Comments Letter F. Muckleshoot Indian Tribe Comments to US Army Corps of Engineers CL Page 8 of 8 11/22/2006 3:29:00 PM Q: \Nickel Fund Project \SMP Staff Rpt.doc • • ATTACHMENT 4 General Shoreline Use Memorandum RECENED VW232O COMMUNITY DEVELOPMENT a,dre •..,cnfi �or:Id Congestion Relief & Bus Rapid Transit Projects GENERAL SHORELINE USE MEMO 600 – 108th Avenue NE, Suite 405 Bellevue, WA 98004 Main 425- 456 -8500 Fax 425- 456 -8600 May 23, 2006 By Joseph Pursley, Permit Coordinator Subject I -405, I -5 to SR -169– Renton Nickel Improvement Project (Project) City of Tukwila Shoreline Application— Criteria for Projects Subject to the City of Tukwila Shoreline Regulations Below are responses to the "Criteria for projects subject to the City of Tukwila Shoreline Regulations" as defined under the (Tukwila Municipal Code [TMC] 18.44.110) General Shoreline Regulations. All uses within the shoreline overlay district must conform to the following general regulations. Responses to the following criteria are based on the use activities in and around the Green River. 1. The use is in conformance with the regulations of the underlying zone district. All Project elements are within conformance with the Urban Zone district regulations. 2. The use does not conflict with the goals and policies of the shoreline master program or the provisions of the Shoreline Act and shoreline regulations. The Project does not conflict with the goals and policies of the Shoreline Master Program. 3. No structures or accessory facilities shall be located over the river unless such structure protects or promotes the public interest. The Project does not propose to construct any structures or accessory facilities over the Green River. 4. There shall be no disruption of existing trees or vegetation within the river environment unless necessary for public safety or flood control, or if allowed as a part of an approved shoreline substantial development permit. • The Project does not propose to disturb any existing trees within the river environment. A small portion of roadside vegetation will be disturbed on the west side of the Green River buffer. 5. No effluent shall be discharged into the Green River which exceeds the water quality classification as established by the State for the adjacent portion of the river. The Project does not propose to discharge effluent into the Green River: 6. All State and federal water quality regulations shall be strictly complied with. The Project will meet the requirements of all state and federal water quality regulations and will obtain all required permits. 7. Wildlife habitat in and along the river should be protected. The Project will not disturb wildlife or wildlife habitat in and along the Green River. 8. All perimeters of landfills or other land forms susceptible to erosion shall be provided with vegetation, retaining walls, or other satisfactory mechanisms for erosion prevention. The Project will incorporate the applicable measures in order to prevent erosion and ensure compliance with all water quality regulations. 9. All necessary permits shall be obtained from federal, State, County or municipal agencies. The Project will obtain all federal, state, and local permits. 10. Dredging for purposes other than for navigational improvements or flood control is prohibited. The Project does not propose dredging in the Green River. 11. Mining is prohibited along the river shoreline. The Project does not propose mining along the Green River shoreline. 12. Solid waste disposal is prohibited along the river shoreline. The Project does not propose to dispose solid v•'aste along the Green River shoreline. 13. No property will be acquired for public use without dedication by or just compensation to the owner. The Project will not acquire properties for public use without dedication or just compensation to the owner. T: \Environmental (Project Level)\South_Renton_Nickel\ 1 2-Permitting\Tukwila shoreline permit (Final)\Attachment 4 (General Shoreline Use Memo)`.Gencral Shoreline Regulations.doc 2 } JP • 14. Landfilling is prohibited within the river channel unless such landfill is determined by the Planning Commission to protect or promote the public interest. The Project does not propose to place fill within the Green River channel. 15. Not withstanding any provisions of this Code to the contrary, removal of any cottonwood tree within the river environment or the low- impact environment, which tree is 12 inches or greater in diameter as measured 4.5 feet above grade, shall be subject to the requirements of TMC Chapter 18.54, Tree Regulations. The Project does not propose to impact any trees within the river environment. T: \Environmental (Project Level) \South_ Renton _Nickel \12 -Pe rmitting\Tukwila shoreline permit (Final)\Attachment 4 (General Shoreline Use Memo)\General Shoreline Regulations.doc 3 ATTCHMENT C 1-405 NICKEL FUND PHOTOS 1-405 Northbound looking west from exit to West Valley Highway; High Impact Environment area 1-405 Northbound, Christianson Rd. overpass in background, Green River Trail on lower left; road shoulder is located in River Environment. Attachment C Page 1 of 4 11/22/2006 5:29:00 PM Q; \Nickel Fund Improvements \Attactunent C.doc ATTCHMENT C 1-405 NICKEL FUND PHOTOS ,11,11111tiii MI) E 491 ...141. ...!.1 7.1.4.S. J..1,11, 1, 1Vn t l • ' ' • 13 4,4 1114 1-405 looking west, close up of Green River Trail in lower left corner; shoulder area located in River Environment. 1-405 Northbound looking east toward West Valley Highway exit; shoulder area located in River Environment. Attachment C Page 2 of 4 11/22/2006 5:29:00 PM Q;Nickel Fund Improvements \Attachment C.doc ATTCHMENT C • -405 NICKEL FUND PHOTOS I -405 looking north at southbound lanes; shoulder area located in River Environment. Attachment C Page 3 of 4 11/22/2006 5:29:00 PM Q;\Nickel Fund Improvements\Attachment C.doc ATTCHMENT C S NICKEL FUND PHOTOS I -405 Northbound, looking west; shoulder area located in High Impact Environment. Attachment C Page 4 of 4 11/22/2006 5:29:00 PM Q;Wickel Fund Improvements\Attachment C.doc HIGH IMPACT' —:t .• , . 2258 SO FT IMPACT AREA 100YR-FL • PL13013 0 4 MAY .6 I CALCULATEI:kUS / CONVERSION El EN gg • • c ` TItE P TOT NY TAKEN' Vf41,30T411,,, I PURPOSE: Congestion Relief 1-406,1-6 to SR1E.....4' SRI 67, 1-406 to SW 41ST ST REFERENCE #: 200600097 APPLICANT: WSDOT PERMIT DRAWINGS 4' .....` ` • , \ I" ,-:'' - - , :k. - -: .- _;- , ' -..-- ::,, , ..4 .,e..., - - .,-.:.': \\ :- - _-;_V,,,1 ‘ \ III g . 1 i 111 II. 4 40 t ! 1 1 1. \I / 1 I ONLSIDAD STUDID WM, DOM i WV t V 41 ‘ 1 \ \ - ‘—RIVERELEC/ATIONS I-405 CROSS GI ,, .„ ,..__ OF GREEN RIVE ' t t . 1 ,.• OHWM: i IS, i ■ EL. 9.83LEFT BANK EL 8,58 RIGHT BANK t loo YR. FLOOD 4:1 Al PROPOSED/RETAIN: 0.15 acres of wetland impacts in the City of Tukwila IN: Wetlands NEAR/AT: Tukwila COUNTY: King STATE: WA DATE: 3/28/06 HORIZONTAL DATUM: HAD 83/91 VERTICAL DATUM: NAVD 88 SHEET 1 OF 1 ATTACIDDENT D + 0 E Feet 100 20( Dept. Of Community Development City of Tukwila AFFIDAVIT OF DISTRIBUTION I, HE DECLARE THAT: Notice of Public Hearing Project Number: ),,(N - Qj 7 Determination of Non - Significance Person requesting mailing: Notice of Public Meeting Mitigated Determination of Non - Significance Board of Adjustment Agenda Pkt Determination of Significance & Scoping Notice Board of Appeals Agenda Pkt Notice of Action Planning Commission Agenda Pkt Official Notice Short Subdivision Agenda Notice of Application Shoreline Mgmt Permit Notice of Application for Shoreline Mgmt Permit -- __ FAX To Seattle Times Classifieds Mail: Gail Muller Classifieds PO Box 70 - Seattle WA 98111 Other Was mailed to each of the addresses listed on this ?Iday of i/0©l).in the year 20 PAADMINISTRATIVEFORMS \FORMS\AFFIDAVITOFDISTRIBUTION Project Name: c. S - Q h i Project Number: ),,(N - Qj 7 Mailer's Signature: EA/0(k Person requesting mailing: 1/6 4 Was mailed to each of the addresses listed on this ?Iday of i/0©l).in the year 20 PAADMINISTRATIVEFORMS \FORMS\AFFIDAVITOFDISTRIBUTION efrAt CA n PaQi\opi — RS ( ) F DERAL HIGHWAY ADMINISTRATION ( ) DEPT OF FISH & WILDLIFE OFFICE OF ARCHAEOLOGY TRANSPORTATION DEPARTMENT (l DEPT NATURAL RESOURCES () OFFICE OF THE GOVERNOR ( DEPT OF COMM. TRADE & ECONOMIC DEV. () DEPT OF FISHERIES & WILDLIFE > () BOUNDARY REVIEW BOARD () FIRE DISTRICT #11 () FIRE DISTRICT #2 () K.C. WASTEWATER TREATMENT DIVISION () KC. DEPT OF PARKS &REC () KC. ASSESSORS OFFICE () TUKWILA SCH ■•OL DISTRICT RENTON LIBRARY () KENT LIBRARY () CITY OF SEATTLE LIBRARY ( ) OWEST () SEATTLE CITY LIGHT ( ) PUGET SOUND ENERGY () HIGHLINE WATER DISTRICT () SEATTLE WATER DEPARTMENT ( ) AT&T CABLE SERVICES ( ) KENT PLANNING DEPT ( ) TUKWILA CITY DEPARTMENTS: () PUBLIC WORKS () FIRE () POLICE () FINANCE () PLANNING () BUILDING () PARKS & REC. () MAYOR () CITY CLERK ( ) PUGET SOUND REGIONAL COUNCIL j:4 / SW K C CHAMBER OF COMMERCE MUCKLESHOOT INDIAN TRIBE )( ) CULTURAL RESOURCES PROGRAM :FISHERIES PROGRAM () WILDLIFE PROGRAM ( ) SEATTLE TIMES ( ) SOUTH COUNTY JOURNAL P:WDMINISTRATIV E\FORMSICHKLIST. DOC FEDERAL AGENCIES WASHINGTON STATE AGENCIES () DEPT OF SOCIAL & HEALTH SERV. (DEPT OF ECOLOGY. SHORELAND DI () DEPT OF ECOLOGY. SEPA DIVISION' OFFICE OF ATTORNEY GENERAL 1 / • SEND CHK ILIL Sf W/ DETERMINATIONS • SEND SITE MAPS WITH DECISION KING COUNTY AGENCIES SCHOOLS/LIBRARIES UTILITIES CITY AGENCIES OTHER LOCAL AGEN MEDIA CIES DUWAMISH INDIAN TRIBE P.S. AIR POLLUTION CLEAN AGENCY ( ) SOUND TRANSIT () DUWAMISH RIVER CLEAN -UP COALITION 'SEND NOTICE OF ALL APPUCATIONS ON DUWAMISH RIVER () U.S. ENVIMENTAL PROTECTION AGENCY () U.S. DEPT OF H.U.D. () NATIONAL MARINE FISHERIES SERVICE ( ) FOSTER LIBRARY ( ) K C PUBLIC LIBRARY ( ) HIGHLINE SCHOOL DISTRICT ( ) SEATTLE SCHOOL DISTRICT ( ) RENTON SCHOOL DISTRICT () HEALTH DEPT () PORT OF SEATTLE () K.C. DEV & ENVIR SERVICES-SEPA INFO CNTR ( ) KC. TRANSIT DIVISION - SEPA OFFICIAL ( ) KC. LAND & WATER RESOURCES )4 t ( u Ci-tb'1: f ( ) OLYMPIC PIPELINE ( ) VAL -VUE SEWER DISTRICT ( ) WATER DISTRICT #20 ( ) WATER DISTRICT #125 ( ) CITY OF RENTON PUBLIC WORKS ( ) BRYN MAWR- LAKERIDGE SEWERNVATER DISTRICT () CITY OF SEA -TAC () CITY OF BURIEN ( ) TUKWILA PLANNING COMMISSION MEMBERS ( ) TUKWILA CITY COUNCIL MEMBERS () CITY OF SEATTLE - SEPA INFO CENTER - DCLU () STRATEGIC PLANNING OFFICE' • NOTICE OF ALL SEATTLE RELATED PLNG PROJ. ( ) HIGHLINE TIMES () CI.TUKWILA.WA.US.WWW 63" 4340- 0 FJ I 5 � h -t rr�y Nkv ti , --- P; NOTICE MAILINGS FOR PETS SEPA MAILINGS Mail to: (comment period starts on date of mailing) Dept. of Ecology Environmental Review Section 'Applicant 'Other agencies as necessary (checked off on attached list) 'Any parties of record ' send only the staff report, site plan and the SEPA Determination KC Transit Division — SEPA Official would like to receive information about all projects that might affect transit demand Send These Documents to DOE: SEPA Determination (3 -part from Sierra) Findings (staff report, usu. with MDNS) SEPA Checklist (filled out by applicant) Drawings/Plans of project (site plan, elevations, etc. from PMT's) Affidavit of Distribution (notice was mailed or sent to newspaper) SHORELINE MAILINGS: Notice of Application for a Substantial Development Permit must be mailed to owners and to property owners within 500 feet of subject property, comments are due 30 days after the notice of application is mailed/posted. The notice of Application for Shoreline Substantial Development Permit must include a statement that any person desiring to submit written comments on the application or desiring to receive notification of the final decision on the application may do so within 30 days of the notice of application. If a hearing will be held on the application, the hearing notice must include the information that writtencomments may be submitted, or oral presentation made at the hearing. Shoreline Permit Notice of Decision: Mail to: (within 8 days of decision; 21 -day appeal period begins date received by DOE) Department of Ecology Shorelands Section State Attorney General 'Applicant 'Indian Tribes ' Other agencies as necessary (checked off on attached list). ' Any parties of record ' send only the staff report, site plan and the SEPA Determination Send These Documents to DOE and Attorney General: Permit Data Sheet Shoreline Substantial Development Permit (3 -part from Sierra) Findings (staff report or memo) . Shoreline Permit Application Form (filled out by applicant) Drawings/Plans of project (site plan, elevations, etc. from PMT"s) - Site plan, with mean high water mark & improvements — Cross - sections of site with structures & shoreline - Grading Plan — Vicinity map SEPA determination (3 -part from Sierra) Findings (staff report or memo) SEPA Checklist (filled out by applicant) Any background studies related to impacts on shoreline Notice of Application Affidavit of Distribution (notice was mailed) P: W DMINISTRATIVEIFORMSICHKLIST.DOC Congestion Relief & Bus Rapid Transit Projects November 8, 2006 Carol Lumb City of Tukwila Department of Community Development 6300 Southcenter Boulevard, Suite 100 Tukwila, Washington 98118 Re: Response to City of Tukwila comments —L06 -037, Shoreline Substantial Development Permit, L040, Special Permission Director for I -405 Nickel Fund Improvements Dear Ms. Lumb: AMA *71 Washington State Department of Transportation RECEIVED NOV 15 2006 COMMUNITY DEVELOPMENT This letter is in response to the comments you shared with us in your August 25, 2006 letter and in two emails on September 27, 2006. Below in italics are the comments from your letter and emails with the I -405 Project Team responses directly below each comment. We appreciate your review of the permit application and hope our responses to your comments provide the additional information you need to complete your review. Comments from the City sent by mail, dated August 25, 2006: 1. For Wetland 0.9R, Please explain how the proposed storm water outfall into the Nelson Side Channel complies with TMC 18.45.070 B.3 which permits new surface water discharges to sensitive areas or their buffers from detention facilities provided that the discharge meets the clean water standards of RCW 90.45 and WAC 173.200 and 173.201 as amended and does not adversely affect water level fluctuations in the wetland. Response: Under existing conditions, much of the stormwater that currently drains to Wetland 0.9R is only partially treated or untreated. With the addition of the proposed stormwater treatment pond, a greater level of water quality treatment and flow control will be provided than currently exists for this stormwater runoff. The I -405, Renton Nickel Improvement Project is designed to meet the standards of the Washington State Department of Transportation (WSDOT) Highway Runoff Manual (HRM), which has been developed for the design of stormwater management facilities for existing and new Washington State highways, rest areas, park- and -ride lots, ferry terminals, and highway maintenance facilities throughout the state. The HRM meets the level of stormwater management established by Washington State Department of Ecology (Ecology) in their Stormwater Management Manual for Western Washington. As such, the project is designed to meet or exceed the state water quality standards as defined by Washington Administrative Code (WAC) 173.200 and 173.201. Based on our evaluation of Wetland 0.9R, the primary hydrologic influences to the — ATTACHMENT E Congestion Relief & Bus Rapid Transit Projects wetland are from the seasonal groundwater level, the level of water in the nearby Green River, and stormwater runoff. Since the stormwater treatment pond will provide both water quality and flow control (detention) for an area that currently drains to Wetland 0.9R, no adverse changes to water levels within Wetland 0.9R are expected. Therefore, the proposal meets the requirements of Tukwila Municipal Code (TMC) 18.45.070 B.3. 2. In Table 2, page 5 of the wetland Mitigation Memorandum, it states that the stormwater outfall has been designed to minimize impacts to wetland 0.9R. Please explain this statement. Response: In order to ensure treated stormwater flows from the stormwater treatment pond to Wetland 0.9R, even during seasonally high water levels within the wetland, the stormwater conveyance pipe must be sufficiently sloped from the stormwater pond to Wetland 0.9R. Since the area between the proposed stormwater pond location and Wetland 0.9R is flat, the outfall of the stormwater conveyance pipe must be located lower and closer to the wetland. A quarry spall pad must be placed at the conveyance pipe outfall to prevent erosion. To reduce impacts to the wetland, the stormwater conveyance pipe outfall has been located as far out of the wetland as possible and the size of the quarry spall pad has been reduced to the smallest area necessary to perform its intended function. 3. The Tukwila Sensitive Areas Ordinance requires mitigation for impacts to wetlands at a ratio of 1.5:1 for restoration or creation and 3:1 for enhancement. It is not clear from the Wetland Mitigation Memorandum how the mitigation credits relate to the requirements of TMC. Please explain. Response: TMC 18.45 does not easily address the expansion of a large linear essential public facility such as Interstate 405 (I -405), particularly when such a project proposes to mitigate for sensitive area impacts in advance of the design -build construction impacts. Additionally, TMC 18.45.90 does not specifically acknowledge the use of a wetland mitigation bank as an option to satisfy wetland mitigation requirements. TMC 18.45.90 is clearly written with the intent of addressing wetland impacts as a result of smaller site development projects that propose wetland mitigation to be constructed concurrently with or after the project impacts. In a concurrent mitigation scenario, it is generally accepted that mitigation ratios are greater than 1:1, such as is specified in TMC 18.45.90. The primary reasons for an increased mitigation ratio are the uncertainty of mitigation success (mitigation site may not function as proposed, resulting in a failure to adequately compensate for the wetland loss) and the temporal loss of wetland functions (it may take a period of time for the mitigation site to achieve the "functional equivalency" of the wetland that was impacted). In contrast, wetland mitigation banks typically have lower required mitigation ratios than concurrent mitigation proposals because they are large contiguous habitat sites constructed in advance of the project impact, provide significantly greater functions than the wetlands affected by the project, can demonstrate a much higher ■ Washington State T, Department of Transportation 2 INTERSTATE\ 405 Corridor Program likelihood of performance standard success, and are preserved and protected in perpetuity by a permanent conservation easement. Credits are the "currency" of a mitigation bank. The value of each credit is equal to its net ecological benefit. For the Springbrook Wetland and Habitat Mitigation Bank (Springbrook Bank), the value of 1 credit was developed to be equal in value to 1 acre of Category II wetland. In other words, Springbrook Bank credits were developed to compensate at a 1:1 ratio for adverse impacts to a Category II wetland. The number of credits required to compensate for each acre of Category I, III, or IV wetland impact differs because each wetland category has a different level of function on a per -acre basis. Table 5 from the attached updated Wetland Mitigation Memorandum (Attachment 1) illustrates the Springbrook Bank credit compensation ratio for each category of wetland impact. Instrument. Congestion Relief & Bus Rapid Transit Projects Table 5 Credits Required for Wetland Impacts' Washington State Vair Department of Transportation Category of lmpa Wetland I I III IV Credit Required per Impact Acre Case -by -Case 1.00 0.85 0.70 1 —Table 4 -2 of Springbrook Wetland and Habitat Mitigation Banking For example, if a proposed project would impact 3 acres of Category II wetlands, a total of 3 credits would be debited from the Springbrook Bank to compensate for that impact. If a proposed project would impact 3 acres of Category III wetlands, a total of 2.55 credits would be debited from the Springbrook Bank to compensate for that impact. These mitigation replacement ratios were developed in coordination with and have been approved by the members of the Mitigation Bank Oversight Committee, which includes members from the U.S. Army Corps of Engineers, U.S. Fish and Wildlife Service, U.S. Environmental Protection Agency, Ecology, and in coordination with the Muckleshoot Indian Tribe. A hardcopy of the approved Springbrook Creek Wetland and Habitat Mitigation Bank Instrument is attached (Attachment 2) to this letter. The I -405, Renton Nickel Improvement Project proposes to use Springbrook Bank credits to compensate for project wetland impacts. We believe the use of credits from the Springbrook Bank for 3 Corridor Program Congestion Relief & Bus Rapid Transit Projects wetland mitigation meets the substantive requirements and purpose of the City of Tukwila's Sensitive Areas Ordinance (TMC 18.45). 4. Can you please provide the survey data for the wetlands you flagged. Response: The I -405 Project Team has recorded onto a CD the CADD survey data for wetlands and streams flagged in the City of Tukwila. This CD is included it as Attachment 3 to this letter. 5. In Table 3 -2, Wetland Ratings, for wetland 0.9R, the Nelson side channel, the City has identified this wetland on our wetland inventory. Response: We spoke with Carol Lumb of the City of Tukwila on September 25, 2006 and clarified this statement. Comment noted. 6. Tables 3 -1 and 3 -2 both classify wetland 0.9R as PAB, Palustrine Aquatic Bed (PAB), however the description of the "Wetland Classification" on page 3 -7 states the wetland is a Palustrine open Water (POW) wetland that is seasonally inundated. The wetland data sheets classify the wetland as a POW. Please clarify which classification the wetland is. In addition, we disagree that the wetland is seasonally inundated- most of it is permanently inundated. What percentage of the wetland is open water? Response: The Cowardin classification of Wetland 0.9R is Palustrine Aquatic Bed (PAB). This classification is based on the best professional judgment of the wetland biologist and is functionally due to the observed water regime and vegetation subclasses. We do acknowledge that much of Wetland 0.9R is permanently inundated, but the remainder of the wetland area is only seasonally inundated. Due to historic land use practices in the area and the previous manipulations of the Green River, Wetland 0.9R has become a dynamic system. The water level within Wetland 0.9R appears to be influenced by stormwater runoff, seasonal groundwater levels, and the water level in the nearby Green River. As the seasonal groundwater level increases and high water events occur in the Green River, Wetland 0.9R responds with similarly high water levels. The vegetation communities found within Wetland 0.9R are reflective of this hydrologic regime. The percentage of vegetation coverage within portions of Wetland 0.9R varies through the seasons based on seasonal water levels and the seasonal amount of scrub - shrub, emergent, floating, and rooted aquatic vegetation. Deeper portions of Wetland 0.9R support colonies of both rooted and floating aquatic vegetation that increase in cover and density as the growing season progresses, leaving open water areas to occupy less than 25 percent of the total wetland area. �► 4 v71 Wingttate , Depaashrtmeon nt S of Transportation Congestion Relief & Bus Rapid Transit Projects 7. On the permit drawings for the shoreline substantial development permit, please explain what activities are taking place in the identified impact areas beside the small amount of paving that is identified. Response: The impact areas indicated on the permit drawings will have a series of phased activities that will precede the final paving that is identified. Roadway clearing and grubbing will be conducted first to clear the project footprint, and then drainage facilities will be installed for catchments and conveyance of stormwater to treatment facilities. The construction and installation of walls, traffic barriers and minor pavement widening will be followed by the installation of signing, lighting, and traffic technologies. All of these activities will be confined to the "limit of construction" line indicated on the permit drawings. 8. What trees will be removed during the course of construction? If they are located in a sensitive area or its buffer, then the requirements of TMC 18.54 must be met, in particular TMC 18.54.130. The city prefers that trees be replaced inside the city limits, possibly around wetland 0.9R. Response: Project impacts to sensitive areas will be mitigated by using credits from the Springbrook Bank. To satisfy vegetation replacement commitments made during the Endangered Species Act consultation process, the project will be replanting approximately 11.84 acres of native woody vegetation (trees and shrubs) throughout the project corridor. Some of this vegetation replanting area may reside within the City of Tukwila. However, since this is a design/build project, the exact locations of these woody vegetation plantings will be determined by the design -build contractor. Planting locations must comply with WSDOT design and safety standards and be compatible with known future highway widening plans. WSDOT does not intend to plant new trees around Wetland 0.9R because future planned highway widening activities would likely impact any trees planted in that area. To maintain design and safety standards, the I -405, Renton Nickel Improvement Project is required to remove any trees or other obstructing vegetation that will impede safe vision or operational traffic flow. Per TMC 18.54.050(2)(c) and (f), the I -405, Renton Nickel Improvement Project appears to be exempt from the application of the City of Tukwila's Tree Ordinance (TMC 18.54) because the I -405, Renton Nickel Improvement Project is located within the City - recognized I -405 right -of -way. Specifically, TMC 18.54.050(2)(f) states that "construction and maintenance of streets and utilities within City- approved rights -of -way and easements" is exempt from the application of TMC 18.54. Additionally, TMC 18.54.050(2)(c) exempts removal of hazardous trees, which is defined by TMC 18.06.395 as "a tree with a structural defect or disease, or which impedes safe vision or traffic flow, or otherwise currently poses a threat to life or property." Washington State 5 V1 Department of Transportation Congestion Relief & Bus Rapid Transit Projects Comments from the City of Tukwila sent via email on September 27, 2006: 9. Stormwater: (1) the TIR says (pg. 2) that two proposed ponds would provide detention for the new roadway. I don't find a map that shows where the pond that discharges to a storm manhole which drains to Gilliam Creek is located. Can you please identify the location of this pond? (2) What kind of treatment will there be for water in the ponds before it is discharged to either Gilliam Creek or the Nelson side channel? (3) What is the existing storm water collection and treatment system like for this area? Response: (1) Two map sheets that graphically depict the locations of the two proposed stormwater ponds within the City of Tukwila are provided as Attachment 4. (2) Water quality treatment will be achieved by using Ecology Embankments, while flow control will be achieved using detention ponds. In order of treatment, water quality treatment will occur first and flow control will occur second. (3) This area of I-405 currently receives minimal water quality treatment by routing stormwater flows through the grass median or shoulders. Also, no flow control is currently provided for this area of I-405. 10. Wetlands: (1) what is meant by "rehabilitating" portions of the Springbrook Creek wetland? Is there a definition for this term? It doesn't equate to our SAO options (restore, create or enhance). (2) Can I get a copy of the Mitigation Bank Instrument to review please? (3) There is no information that addresses whether there will be impacts to fish, wildlife or their habitat. This criteria is from TMC 18.45.090 B. and is one of six that must be addressed to approve alterations to a wetland. Response: (1) Wetland "rehabilitation" is defined by the U.S. Army Corps of Engineers and Washington State Department of Ecology and is a type of wetland restoration. It refers to the manipulation of the physical, chemical, or biological characteristics of a site with the goal of repairing natural or historic functions of a degraded wetland. Rehabilitation results in a gain in wetland function but does not result in a gain in wetland acres. A more detailed explanation can be found in the Glossary of the MBI, as well as other various sections throughout the MBI. (2) A copy of the approved MBI is included with this letter as Attachment 2. (3) A copy of the updated Wetland Mitigation Memorandum is included with this letter as Attachment 1. The updates made to the Wetland Mitigation Memorandum, which were required by Ecology, now provide a more detailed discussion about how the project impacts and adequately mitigates for water quality, hydrologic and habitat functional attributes. When reading the Wetland Mitigation Memorandum, please keep in mind that this document discusses all wetlands within the project corridor, but only wetlands 0.4L, 0.5L, 0.6L and 0.9L are located within the City of Tukwila. Washington State 6 v7471 Departmen of Transportation Congestion Relief & Bus Rapid Transit Projects 11. Streams: We talked about which streams will experience temporary impacts to their buffers due to construction. The Sensitive Areas Review Memo says there are two streams that will have temporary impacts & we identified Cottage Creek as one of the streams. Is there a second stream that will experience temporary impacts? If so, which one. Response: Approximately 3,974 square feet of Gilliam Creek stream buffer will be impacted by the proposed project. The area to be impacted is vegetated with grass vegetation and is located on the existing highway fill prism immediately off the paved shoulder of I -405. 12. Maybe the MBI discusses this, but in selecting off -site mitigation sites, there is a hierarchy of preference for the types of area to use for mitigation. See page 5 of the draft staff report, item #4 for the preferred locations for mitigation. I'm wondering where the Springbrook wetland falls in the order of preference. Response: To fully compensate for unavoidable permanent impacts to wetlands from the I- 405, Renton Nickel Improvement Project, WSDOT proposes to debit wetland mitigation credits from the Springbrook Bank. Springbrook Bank is a large site located along significant habitat corridors (Springbrook Creek and BNSF railroad right -of -way) that targets habitat functional improvements at a large scale with potential for benefits beyond the bank site boundaries. Through these habitat corridors, the Springbrook Bank is connected to other nearby mitigation sites and Springbrook Creek. As a result of wetland creation, rehabilitation, enhancement activities, the Springbrook Bank provides a greater surface water connection between onsite wetlands and Springbrook Creek. As identified in the I -405 Congestion Relief and Bus Rapid Transit Projects Final Environmental Impact Statement, mitigation banking is an option where on -site mitigation is not possible or is less environmentally beneficial. Mitigation banking would allow acquisition of credits, which go toward enhancing, creating, or restoring wetlands at a designated site. Wetland mitigation credits would adequately compensate for unavoidable project wetland impacts. In highly urban - developed watersheds such as those where this project is located, suitable vacant parcels available for wetland mitigation are rare. Identification of available parcels for mitigation is dependent upon specific land use and real estate conditions. Also, since future phases of I -405 widening are planned, wetland creation within existing I -405 right -of- way or within the future I -405 widening footprint is unfeasible. As much as possible, mitigation sites should provide connectivity with the remaining wetlands within the basin. Finding non - wetland property in proximity to a suitable hydrologic source is increasingly difficult due to increased land use development pressures. In some instances, off -site and /or out -of -kind mitigation options may provide adequate or even higher levels of wetland /watershed functions than onsite and /or in -kind wetland replacement. 7 W ashington State �� D epartment of Transportation Sincerely, Congestion Relief & Bus Rapid Transit Projects Due to the constraints listed above, all of which apply, this project determined that an off - site mitigation option in the form of a large wetland mitigation bank was the preferred option to meet the wetland mitigation needs of this project. Section 1.1.3 in the MBI further discusses the site selection rationale for the Springbrook Bank. We completed SEPA for this project on October 29, 2006, and have included the Determination of Nonsignificance (DNS) as Attachment 5 to this letter. The I -405 Project Team appreciates the comments received from the City of Tukwila. Thank you for your help in developing improved documents for the I -405, Renton Nickel Improvement Project. We look forward to future coordination. Allison Ray I -405 Project Environmental Manager (425) 456 -8610 rayalli@wsdot.wa.gov Cc: Nora Gierloff, Planning Manager Sandra Whiting, Urban Environmentalist Attachments: Attachment 1- Updated Wetland Mitigation Memorandum Attachment 2 - Approved Springbrook Wetland and Habitat Mitigation Bank Instrument Attachment 3 - CADD Wetland and Stream Survey Data Attachment 4 - Stormwater Ponds Maps Attachment 5 - SEPA DNS INK 8 Washington State Department of Transportation 0 '0-)( RECEIV,i NOV 15 AN COMMUNITY Attachment 3 OEvaoPmEb CADD Wetland and Stream Survey Data ccoliN, out \ Q - t(\ RECEIVED NOV 15 1006 • DEVCLOPOLNT Attachment 4 Stormwater Ponds Maps La 1Cor.r_idor_P_r_ogram_ EXIST. DRAINAGE DITCH PROP. DRAINAGE DITCH EXIST. STORMDRAIN PROP. STORMDRAIN EXIST. CATCHBASIN PROP. CATCHBASIN BIOFILTRATION SWALE PRA BOUNDARY PROP. DETENTION POND PROPOSED RETAINING WALL EXISTING RIGHT OF WAY ECOLOGY EMBANKMENT LEGEND � > ,�jr1� CATCHMENT AREA WETLAND 100 YR. FLOOD ZONE 0 200 400 SCALE IN FEET I -405 CONGESTION RELIEF & BUS RAPID TRANSIT PROJECTS 405 RENTON NICKEL IMPROVEMENT PROJECT - DRAINAGE CONCEPT r.. IQ' , P.AVEME TS CATCHMENT.20... . 2ARE A7%-f 2•; 635' ; � y: fa,f O EXIST. DRAINAGE DITCH PROP. DRAINAGE DITCH EXIST. STORMDRAIN PROP. STORMDRAIN EXIST. CATCHBASIN PROP. CATCHBASIN BIOFILTRAT1ON SWALE PRA BOUNDARY PROP. DETENTION POND PROPOSED RETAINING WALL EXISTING RIGHT OF WAY ECOLOGY EMBANKMENT LEGEND `2.>2;2: CATCHMENT AREA WETLAND V v v 100 YR. FLOOD ZONE �W\ 0 200 400 SCALE IN FEET Weddestas State Daputmuit at Trasparesdon I -405 CON BUS RAPID 405 RENTON PROJECT - GESTION RELIEF & TRANSIT PROJECTS NICKEL IMPROVEMENT DRAINAGE CONCEPT SHEET 2 6 SHEETS • 0 RECEIVED NOV 15 211f6+ nev yT Attachment 5 SEPA DNS Congestion Relief & Bus Rapid Transit Projects 600 — 108 Avenue, NE, Suite 405 Bellevue, WA 93004 .. Main 415- 456.0500 Fax 415 - 456..8600 DETERMINATION OF NONSIGNIFICANCE (DNS) 1405 Renton Mickel Improvement Project, 1 -5 to SR 169 Description of proposal: WSDOT intends to improve Interstate. 405 (1 -4Q5) from Interstate 5 (1 - to SR 1.69. These improvements are a part of the I - 405 Corridor Program. The Proposed Action includes the following improvements to support construction and operation of the facility: • Constructing one new northbound . general- purpose lane. and one new . southbound general-purpose lane on 1 - 405 from 1 -5 to 1 167 and from SR 167 to SR 169; • Constructing one new southbound general-purpose lane on SR 167 from 1 -405 to the SW 41st Street off -ramp; • Extending the.SR•16 � 7 southbound 1- 1C:)V lane north to begin at I =405; • Replacing the Benson Road Bridge on a necv alignment that will include bike and pedestrian facilities; and • Replacing the I -105 bridges over .Springbrook Side Channel and Oakesdale Avenue with new southbound and nod hihound bridges. Other features of the project include: • Replacing the bridge rails an the 1405 bridges. twer the Burlington Northern /Santa Fe (BNISF) and Union Pacific (UP) railroad tracks, and over SR 515 (Talbot Road); • Improving stormwater treatment detention and conveyance; s Using design: principles and adding architectural treatments to improve the highway's appearance; and • Incorporating numerous ,7 to avoid or minimize effects to the environment. The Renton Nickel Improvement Project will provide many short- and long -term benefits. Some of thes e benefits are • Reducing travel times and improving oper;:xtions in the project area; Improving response time for emergency service vehicles along 1 -405 and SR 167;,.:.. Building a noise wall along the north side of the Talbot Hill reduce highway noise; Removing the existing box culvert at Springbrook Creek and improving the streambed; and • Mitigating for fill in lower- quality wetlands by using credits from Springbrook Creek Mitigation Bank, a higher - quality wetland complex. Location of proposal, including street address, if any: The Renton Nickel Improvement Project extends for approximately 3.6 miles along I -405 from I -5 to SR 169 and along SR 167 from I -405 to the SW 41st Street ramp off - connection. Proponent/Lead Agency: Washington State Department of Transportation Determination: The lead agency for this proposal has determined that it does not have a probable significant adverse impact on the environment. An environmental impact statement (EIS) is not required under RCW 43.21C.030 (2)(c). This decision was made after review of a completed environmental checklist and other information on file with the lead agency. This information is available to the public on request. Please note that our checklist document is titled 1-405 Renton Nickel Improvement Project, 1 -5 to SR 169, Environmental Assessment and it was completed in October 2006. The document is available to view during normal business hours at: I -405 Project Office, 600 — 108th Avenue NE, Suite 405, Bellevue; Bellevue Regional Library; Bellevue Community College; Foster Library; Highlands Public Library; Renton Public Library; Skyway Library; Tukwila Regional Library; and the University of Washington Library (Suzzalo and Bothell). The document is also available electronically at www. wsdot.wa.gov/projects/i405/corridor/library/rente a ❑ There is no comment period for this DNS. El This DNS is issued under WAC 197 -11- 340(2); the lead agency will not act on this proposal for 14 days from the date below. Comments must be submitted by October 16, 2006. Responsible Official: Position/Title: Address: Allison Ray WSDOT I-405 Project Environmental `Manager 1-405 Project Office 600 -108 Avenue NE, Suite 405 Rebecca McAndrew Project Manager U.S. Army Corps of Engineers Regulatory Branch P.O. Box 3755 Seattle WA 98124 -3755 Dear Ms. McAndrew: • Fisheries Division 39015 - 172 Avenue SE • Auburn, Washington 98092 -9763 Phone: (253) 939 -3311 • Fax: (253) 931 -0752 October 25, 2006 Cc: Sean Callahen, NMFS, Emily Teachout, USFWS Sandi Manning, ACOE and Gail Terzi, ACOE Krista Rave - Perkins, EPA Jim Fraser, WDFW Rebecca Ponzio, WDOE, NW Region, Kim Harper, WDOE, NW Region Carol Lumb, City of Tukwila • RECEWED OCT 2 'r 2006 MUCKLESHOOT INDIAN TRIBE COMMUNITY DEVELOPMEN RE: I -405 Renton Nickel Improvement, Washington State Department of Transportation 200600097 INDI TRIBE The Muckleshoot Indian Tribe Fisheries Division has reviewed the above referenced permit and appendices 1 - 11- 14, and 16 -20. The project, as described in the Public Notice, will widen 3.7 miles of Interstate 405 (I -405) from Interstate 5 (I -5) to State Route (SR) 169 and widen 1.6 miles of SR 167 from I-405 to Southwest 41 Street. On I- 405, a new general purpose and a merging lane will be added in each direction. On SR 167, a new high occupancy vehicle land and a merging lane will be added southbound. As a result of this project, there will be 1.57 acres of aquatic bed, emergent, and shrub wetland filled, 0.08 acre of fill in the riparian areas of Springbrook and the West Fork Panther Creek, and 0.05 acre of fill in jurisdictional roadside ditch segments. In addition, there will be 3.62 acres of permanent wetland buffer impacts and 0.22 acre of temporary wetland buffer impacts. Finally, there will be 1.51 acres of permanent stream buffer impacts and 0.88 acre of temporary stream buffer impacts affecting Gilliam Creek, the Green River, Springbrook Creek, Rolling Hills Creek, Thunder Hills Creek, and Panther Creek. We have several concerns with this project; in particular the proposed mitigation plan does not sufficiently offset the potential impacts associated with this project, as noted in the attached comments. Our comments include specific comments to some of the appendices that we reviewed. These comments are in the interest of protecting and restoring the Tribe's fisheries resources and are not addressing any other potential resource concerns. Thank you for the opportunity to comment on this proposal. If you have any questions or would like to meet to discuss these comments, please call me at (253) 876 -3116. • cerely, , K en Walter Watersheds and Land Use Team Leader Attachments ATTACHMENT F • • Muckleshoot Indian Tribe Fisheries Division October 25, 2006 Comments to Public Notice 200600097 Page 2 General As noted above, we are concerned about this project's proposed mitigation plan for impacts to Gilliam Creek and its unnamed tributary, Cottage Creek, Green River, Rolling Hills Creek and its unnamed tributary, Thunder Hills Creek, Stream 09.DW -0.8, Springbrook Creek and the East and West Forks of Panther Creek. At this time, this project proposes to mitigate for all stream and stream buffer impacts at Springbrook Creek by removing an existing (non- barrier) box culvert and replacing it with a bridge that includes a new abutment in the ordinary high water mark of Springbrook Creek. In addition, this project proposes to enhance 0.13 acre of an existing "side channel" of Springbrook Creek and enhance 0.06 acre of riparian habitat on the banks of Springbrook Creek within the project area for 0.33 acre of instream impacts and 0.95 acre of permanent riparian buffer impacts. This approach is not even a 1:1 ratio for the impacts and will not mitigate for all impacts for this project, as noted below. A major impact from this project is that none of the existing known fish barriers in the project area will be replaced or retrofitted at this time.: The project should replace all culverts to fish - bearing waters to make them fish passable. To our knowledge, no culvert will be made fish passable with this project, which renders this project as unacceptable. A key example is the flapgate /culvert conveying Gilliam Creek to the Green River at River Mile 12.7. The replacement of this flapgate /culvert was identified in the WRIA 9 Salmon recovery plan as an action to take to assist in the restoration of chinook populations (see project LG -16 in ftp: / /dnr.metrokc. gov /dnr/library /2005 /kcr1876 /CHAPTERS /Ch7- LowerGreen. pdf). This plan also recommended the restoration of the lower mile of Springbrook Creek (project LG -19 at the same website) to benefit chinook and other salmon populations. Finally, the Black River Pump Station is at a barrier to adult and juvenile salmonids as noted on page 24 of the Fisheries and Aquatic Resources Discipline Report. None of these projects were considered as a potential mitigation measures for the impacts to the Green River, Springbrook Creek and its tributaries, and Gilliam Creek discussed on page 19 of the Fisheries and Aquatic Resources Discipline Report. Comments specific to the JARPA The project lacks any discussion about potential impacts to riparian areas of the Green and Cedar Rivers. Please clarify if the project will be removing existing vegetation (sizes and species) and if there will be shading impacts as a result of this project. The response regarding water quality impaired waters may be incorrect as the applicant used an outdated version of the 303 (d) list (1998 versus 2002/2004). Comments to Attachment 3 (Talent Ditch Package) It is important to note that the ditch survey was conducted in February 2005 when the Puget Sound was experiencing a winter drought, with rainfall less the normal. (See http: / /drought.unl.edu/dm/ archive /2005 /drmon0215.htm). This is important because some of the ditches determined to be non jurisdictional may actually be connected to streams and wetlands. For example, TD 2022 -R is considered non-jurisdictional; hoWdVer, given the low gradient and its proximity Gilliam Creek, this ditch may actually be connected to Gilliam Creek and provide fish habitat. To our knowledge, none of the ditches were evaluated for their potential to provide fish habitat, despite the acknowledgement in the attachment that the entire project area is in a low gradient valley that historically flooded throughout the project boundaries. The surveyed ditches in proximity to streams or that drain to streams should be re- evaluated for their potential to provide fish habitat or alternatively they should be treated as streams for purposes of the impact analysis and mitigation. Our evaluation indicates that Talent Ditches TD- 2022R, TD- 2045R, TD- 2116R, TD- 2120L, TD -2146L would meet the Comments to Attachment 4 (Stormwater Management Concept) • • Muckleshoot Indian Tribe Fisheries Division October 25, 2006 Comments to Public Notice 200600097 Page 3 On page 2 of this attachment, there is a proposal to take an existing open ditch that drains to Springbrook Creek and put it into a closed conveyance system. Please elaborate on this proposal and explain which Talent Ditch this proposal references. There is no discussion in this attachment about the potential to infiltrate treated stormwater. Infiltration is the first method that should be used to avoid impacts to waterbodies and should be considered particularly for the Nelson side channel of the Green River and Gilliam Creek, as these are fish- bearing streams likely already adversely impacted by stormwater. Please explain why the project proposes to treat only a portion of existing and new impervious surfaces. Please provide an analysis to demonstrate the existing and new water treatment facilities will enable the receiving waterbodies to meet Washington's water quality standards. This analysis should be completed for total suspended solids, total copper, total zinc, cadmium, chromium, oil and grease, which are common pollutants found in stormwater from motor vehicles (WDOE, 2006). In order to analyze whether the proposed project will cause violations of Washington State water quality standards and cause degradation to the existing quality of the surface water, a more comprehensive set of parameters, which are relevant to highways, should be analyzed. In addition, the range (maximum and minimum) of concentrations (and loads) of each pollutant should be estimated for the comparison of No -Build and Proposed Project effects, not just the medians. Comments to Attachment 5- Section 404(b)(1) Alternatives Analysis We did not receive a copy of this attachment and reserve the right to comment on it once we have received it and have had a chance to review it. Hopefully, this alternative analysis includes discussion about the Tukwila Renton I- 405 project as well as the Renton to Bellevue I -405 project so that cumulative impacts may be appropriately assessed. Comments to Attachment 6 Stream and Wetland Impact Tables Please clarify the extent of permanent wetland impacts. The Public Notice indicates that there will be 1.57 acres of impact and the wetland summary table indicates that 1.66 acres of wetland will be impacted. Similarly, the Public Notice indicates that there will be 0.57 acre of temporary wetland impacts, while the summary table indicates 0.62 acre. Comments to Attachment 7 Wetland Biology report The amount of wetland acres that will be impacted permanently and temporarily differs from the numbers shown in the Attachment 6 and the JARPA. Panther Creek wetlands are identified as priority habitat in WDFW's PHS database. As a result, they may be regulated differently by Renton. See Renton's Municipal Code 4- 3- 050(K). Please elaborate on the status wetland 0.15 R as a previous WSDOT mitigation wetland site that is associated with Gilliam Creek. For example, explain what project this mitigation is for, what the success of this mitigation site is, how the new project will affect this wetland, etc. Please clarify how the "riparian association" column in Table 3 -1 was determined. There are some wetlands (i.e. 1.7R, 2.81L, and 2.9L) that are noted as have surface connections to streams. Also, the project proposed to fill all of Wetland 1.7R (0.46 acre). The project also proposes to permanently fill 0.99 acre, temporarily impact 0.55 acre, directly impact 2.71 acres of buffer and 0.42 acre of "temporary" buffer impacts to Wetland 25.0L, which is a 5.88 acre wetland in the Panther Creek subbasin. Since both 1.7R and 25.0L wetlands are associated with a stream and support rearing and refugia salmon habitat (see page 37 of the Fisheries and Aquatic Resources Discipline Report), it • • Muckleshoot Indian Tribe Fisheries Division October 25, 2006 Comments to Public Notice 200600097 Page 4 is important to ensure that the wetland mitigation for these areas is sufficient for these impacts. Juvenile salmon rearing and refugia habitat is lacking in the Lower Green River (KC DNR 2004) and should be mitigated where it will be impacted. As we have noted in our April 26 2006 comments to the Springbrook Creek wetland mitigation . • bank, this bank is not fully restoring the connectivity between Springbrook Creek and the mitigation area wetlands. For example the existing levee system and stream channel dredging that occurs in Springbrook Creek will continue despite the mitigation site. Wood cannot be placed into Springbrook Creek to create fish habitat because of constraints with the local drainage district. As a result, the mitigation bank is insufficient to mitigate for stream associated impacts that will occur as the result of fill and buffer reduction for wetlands 1.7R and wetland 25.0. Additional mitigation will be needed. See also this statement from the report: Because of the implementation of stormwater BMPs as part of the project, stormwater quality will be significantly improved for the corridor as a whole, but wetland loss will reduce the flood water desynchronization, sediment removal, nutrient and toxicant removal, and erosion control functions provided by the impacted wetlands. The project will also result in a reduction of habitat functions provided by wetland areas, and those habitat functions will not be mitigated through stormwater treatment and detention or other water quality BMPs. Therefore compensatory wetland mitigation (discussion in Section 6.0) will be implemented primarily for impacts to wetland habitat. Comments to the Attachment 8 Draft Wetland Mitigation Bank Instrument We previously sent the Corps comments (26 April 2006) to this document in response to the Joint Public Notice 200600100. We received a response from the Corps, who disagreed with our recommendations for language changes to the instrument. As a result, our concerns have not been addressed sufficiently at this time. Comments to Attachment 11- Fish and Aquatic Resources Discipline Report (DR) Discuss the nature of streams shown on Exhibit 2 to Gilliam Creek. It is not clear if the streams shown are piped or open channel. If they pied :then 'project does not propose to daylight these streams as partial mitigation for impacts to Gilliam Creek. Please discuss if the bridge replacement project proposed over Springbrook Creek is necessary to complete the project as proposed or not. In the wetland report it was described as necessary improvements to Oakesdale Ave SW. See also page 11 of the Fish report. If this is the case, then the new bridge over Springbrook Creek is not a mitigation measure for stream impacts in the project area. For Exhibit 5, please explain if the dashed lines for streams shown on this exhibit represent pipes or not. If they are pipes, then please explain why the project does not propose to daylight these streams as part of this project. For Exhibit 6, please discuss what the mitigation is for Staging area 3 and the future stormwater pond that will be built in Panther Creek. For Exhibit 7, please discuss what the mitigation is for the impacts to Panther Creek as the result of road widening and likely culvert extensions. Rolling Hills Creek. 1 • • Muckleshoot Indian Tribe Fisheries Division October 25, 2006 Comments to Public Notice 200600097 Page 5 On page 11, please clarify what will happen to the Springbrook Culvert under I -405. It is our understanding that the new bridge over Springbrook Creek will result in this culvert being replaced. On page 21, to our knowledge the biologists working on I -405 did not consult with the Muckleshoot Indian Tribe Fisheries Division on this project. Also the Muckleshoot Indian Tribe is a sovereign government, not an "interest" group as implied on this page. On pages 21 -22, please explain how the biologists determined that a riparian area of 18 m ( -59 feet) is an "optimal" riparian zone (also shown on page B -1). This distance is insufficient to provide 100% of riparian functions, such as microclimates and wood recruitment (Spence et al 1996; FEMAT 1993) to the affected waterbodies, which all lack wood based on the habitat survey data. On page 22, the statement regarding the Yakama Tribes' usual and accustomed fishing areas is correct; however, the ability for Yakama Tribe to fish in the area identified is pre - conditioned on consent by the Tribes in the region including the Muckleshoot Indian Tribe. The District Court held that the Yakama are preceded with limitations based on the statement that "they took these fish there by the consent of the tribes in this region" (See 384 F.Supp.380 (WD Wn. 1974)). This consent still applies today. On page 24, please note that depending on where one is on the Lower Green River, there is spawning of adult salmon. It is important to discuss the area in terms of River Miles and not just a general description, as these vary from person to person. Also, as far as rearing habitat goes, the King County report cited noted limitations to rearing habitat; however, the Lower Green River is used by all salmonids acclimating to salt water; they have no other choice. On page 25, there is stream flowing from the north into the Cedar River in the 1 -405 project area. It appears to be in a pipe and is shown on Exhibit 9. On page 28, steelhead have been proposed for listing under the Endangered Species Act. See http: / /www.nwr.noaa.gov/ESA- Salmon - Listings/ Salmon - Populations /upload/lpgr06- 06.pdf. Coho is one of the EFH species to be considered by the project. Please note that measures to mitigate for impacts to chinook and their habitat may not be the same as those needed by coho. The two species have very different life history traits and this should be considered in a complete EFH analysis. On page 30, the DR should elaborate on the number of culverts that are fish barriers or partial fish barriers, who owns them, and plans to repair or replace these culverts so they are no longer fish barriers as required by state law. On page 31, as noted on this page the I -405 culvert on Cottage Creek is a complete fish passage barrier and should be repaired or replaced. Similarly the 1 -405 culvert on the unnamed tributary to Gilliam Creek should be repaired or replaced to provide fish passage. On page 32, please elaborate on the "complete fish passage barriers" on the unnamed tributary to Gilliam Creek, including their size, ownership, etc. On page 33, a fifth engineering project not discussed on this page has had a profound effect on the hydrology and channel of the Green River, which is the construction and maintenance of the flood control levees. Also on this page, footnote 19 may be in error and should reference the Limiting Factors Report for WRIA 9, not WRIA 8. On page 34, footnote 24 should include a date of the observation. • • Muckleshoot Indian Tribe Fisheries Division October 25, 2006 Comments to Public Notice 200600097 Page 6 On page 36, the two culverts conveying the West Fork of Panther Creek under SR 167 should be replaced or retrofitted so they are no longer fish barriers. Also on this page, please discuss whether or not the fish ladder that conveys the East Fork of Panther Creek under SR 167 is fish passable for all salmonids' life history stages. On page 36 and 37, the potential loss of rearing and refugia habitat in the Panther Creek wetland should be mitigated. The current proposal for the Springbrook Creek Wetland mitigation bank will not mitigate for this impact as the proposed project is constrained by existing levees and flood control management practices of the Drainage District. The lower portion of Springbrook Creek where the new bridge will be placed is also constrained by existing berms on site and any refuge habitat may be negated by stormwater discharges in this area. In addition, Panther Creek is likely the rearing habitat within the Springbrook Creek system; therefore, any lost rearing habitat should be replaced in this watershed. On page 39, please discuss the fish passability of the I -405 culvert that conveys the Rolling Hills Creek unnamed tributary. If this culvert is not fish passable, it should be replaced or retrofitted as part of this project. Similarly the I-405 culvert that is a partial barrier to fish passage conveying Rolling Hills Creek (page 40) should be replaced or retrofitted to provide passage. On page 40, the culvert under I-405 conveying Thunder Hills Creek should be replaced or retrofitted so that it is no longer a fish passage barrier. On page 44, the Public Notice project drawings show an abutment in the ordinary high water mark of Springbrook Creek. The DR fails to note this on this page. Also, please note that if the all of the blocking culverts are not repaired or replaced as part of this project, then fish barriers will continue as part of this project and will likely be permanent. On page 45, please clarify if the project is constructing two or three lanes over Springbrook Creek. Also note that the purpose of the new bridge over Springbrook Creek is to accommodate new lanes, not fish passage. The bridge will result in permanent impacts to 11,960 square feet of the Springbrook Creek channel and 11,540 square feet of riparian buffer impacts. On page 46, it is noted that the project will permanently impacts 2,590 square feet of the West Fork of Panther Creek as well as "temporarily" impact 0.42 acre of buffer to Wetland 25.9 (a wetland associated with the creek that provides rearing habitat). In addition, 1,850 feet of riparian buffer of the East Fork of Panther Creek will be permanently affected by the project. The impacts to Panther Creek and its riparian areas should be mitigated in this area or alternatively another portion of this watershed that provides rearing and refuge habitat for salmon throughout the wet seasons. On page 49, please note that high flows (not just peaks) can cause harm to juvenile salmonids by affecting their feeding and avoidance behavior as well as energy reserves that enable them to fight disease. Several of these potential impacts were identified on pages 52 -53. Also, to our knowledge,,She Runoff Manual has not demonstrated that it is capable of protecting all aquatic life. Furthermore, creating stormvater facilities to control runoff from new impervious surfaces does not necessarily address existing stormwater conditions that are adverse to fish. Finally, please note that the areas that will receive stormwater (i.e. Springbrook Creek) are simplified and degraded and already are limited in rearing and refuge habitat that juvenile salmonids need to avoid stormwater. On page 50, please elaborate on the statement that there will be no negative effects to baseflows by providing an • • Muckleshoot Indian Tribe Fisheries Division October 25, 2006 Comments to Public Notice 200600097 Page 7 analysis to demonstrate this statement for each of the affected waterbodies. This analysis should also discuss the relationship that water quantity has on water quality parameters such as temperature and dissolved oxygen, which are exceeded in several of the affected streams. On page 51, please discuss if the water quality of stormwater discharged for this project will meet Washington water quality standards or not. Also on page 51, as noted in comments above, the project should replace or retrofit all culverts identified to be fish passage barriers. On page 52, please elaborate which streams are proposed for de- watering. This section of the DR lacks any discussion about the how the light on the existing highway may shine directly on surface waters, causing enhanced predation opportunities, and the potential for the project to increase or decrease this impact. The DR also lacks a quantification of the amount, type and size of trees greater than 6" in diameter within 200 feet of affected waterbodies that may be removed as part of this project; therefore, it is impossible to analyze the project for its potential to adversely affect wood recruitment from the riparian area for the affected waterbodies. On page 55, there will be impacts to salmon habitat for chinook, coho, steelhead and other salmonids that may adversely affect the fish themselves. Also on page 55, we were unable to review potential cumulative impacts as the result of this and other projects, including but not limited to SR 518 expansion, SR 167 Stage 3 HOV, Renton's Village Storm system project, etc., because the separate Cumulative Effects DR was not included in the information we received from the applicant. On page 58, see our previous comments regarding concerns with the proposed mitigation plan for impacts to streams and riparian areas affected by the project. The project should mitigate for these impacts in the streams /rivers where they occur. In addition, the mitigation should address the impacts. For example, removing a 25 -30 year old tree that provides shade to a stream and replacing it with a 5 gallon tree is not sufficient mitigation for the loss of shade or future wood recruitment. Additional mitigation will be necessary. Finally, we do not support the opinion that it is okay to allow additional impacts without sufficient on -site mitigation to streams and rivers that already have degraded conditions. On -site mitigation will ensure that the affected waterbodies won't be worse off as the result of the project. On page, 59, please identify the streams that will "experience work within or above the OHWM ". Comment to Appendix 13 Biological Assessment Page ii- I think all of the streams in the project area are critical habitat for chinook. On page 1, as previously discussed in comments above, the replacement of the box culvert on Springbrook Creek is necessary due to the roadwork for this project and should not be considered mitigation. In addition, the new bridge over Springbrook Creek is likely a necessary feature to enable the project to construct 2 new lanes in each direction as proposed in the Master Plan for 1 -405. On page 8, The BA states: "Storinwater detention is not required for discharge to the Cedar River because it is large enough that no measurable increase in hydraulic conditions and velocities will occur with increased runoff. The Cedar River • • Muckleshoot Indian Tribe Fisheries Division October 25, 2006 Comments to Public Notice 200600097 Page 8 is designated as an exempt waterbody, per updates to the HRM completed in February, 2005 (WSDOT 2005a)." While this statement may be true from a regulatory context, there is also no data to show that the stormwater discharges into the Cedar River do not have a measurable increase in water velocities where these discharges occur (localized effect) that may be detrimental to salmon. On page 10, please send us a copy of "Compliance Implementing Agreement Regarding Compliance with the State of Washington Surface Water Quality Standards between WSDOT and Ecology (WSDOT and Ecology 1998), and WAC 173- 201(A): Water Quality Standards for Surface Waters of the State of Washington ". On page 11, With respect to Koellman and Patterson 2005, this information should be made available. On pages 11 -1 and 19, the description of the two forks of Panther Creek is inconsistent with the description on pages 36 -37 of the Fisheries DR. According to the DR, the wetlands and both forks are connected and accessible by fish. We would agree with the DR and believe that the BA is incorrect. On page 22, please clarify if the stormwater ponds will be designed based on an undeveloped, forested condition or not. On page 23, please identify the mitigation for the 256 fl of riprap that will be placed into the Springbrook Creek side channel. On page 29, please clarify the exact number of piles to be placed in Springbrook Creek as part of the new bridge. The Corps Permit Sheet 11 shows 1 column; however, the BA indicates there will be 9 columns within the OHWM. Please indicate what mitigation will occur for stream channel impacts associated with the pile(s). Also if a temporary bridge is constructed, then there may be additional inwater impacts that will need mitigation. We reserve the right to comment on any temporary bridge, if one is needed. On page 39, the lighting section discusses how lighting will be managed during construction to avoid impacts, but what about operations? On page 43 (and elsewhere), the Fisheries DR indicates that chinook are found in Springbrook Creek based on the limiting factors report for WRIA 9 (Kerwin 2001). Several pages in the BA indicate that there is no listed fish species in Springbrook Creek. On page 44, please clarify the statement about no impact within the OHWM of Cottage Creek, a tributary to Gilliam Creek. Exhibit 2 from the Fisheries DR shows an area of construction that overlaps with the stream. Also please clarify where the stormwater will outfall to for the new detention pond shown on Exhibit 2 of the Fisheries DR. On page 55, the Green River will be affected by this project as 1,250 & of riparian buffer will be affected. In addition, there is a new detention pond that will be built and ultimately drain to the Green River via Wetland 0.9R. On page 56, the evaluation of the potential for stormwater to affect the various waterbodies appears to consider only water resources and not aquatic resources within these areas. Vil pi;�C ; , hull: J, ,.i.J I. lit 111,,av .l. <IS u i..JU.I VA .11.J IA V}C•I. a this determination. • • Muckleshoot Indian Tribe Fisheries Division October 25, 2006 Comments to Public Notice 200600097 Page 9 On page 74, the percent of impervious surfaces analysis should discuss the increase in impervious surface for each affected subbasin, not the overall project area. On page 75, please define what is meant by a "temporary impact" as the result of riparian vegetation removal. Also, please define what is meant by "mature" and "immature" vegetation. Finally, the affected streams and the Green River are already degraded with respect to riparian buffers and instream habitat and any loss of additional instream or riparian habitat should be viewed as a significant impact. On page 77, the BA fails to consider the impacts of permanent lighting that may adversely affect fish and aquatic resources. On page 78, the BA assumes that the new bridge structure will improve fish habitat in Springbrook Creek; however, there will be new abutments within the Ordinary High Water Mark, which will cause a direct loss of habitat and will likely affect channel conditions and floodplain connectivity (i.e. 11,200 ft of fill in the Springbrook Creek floodplain). Bridge maintenance actions will also likely result in the removal of any wood that may be considered a threat to the abutments. In addition, the proposed channel "improvements" do not address limiting factors and are constrained by current flood control district policies. Finally, there will be a new stormwater outfall, which will impact instream habitat as well as cause adverse impacts that may exceed any benefits derived from the habitat improvements. On page 79, the BA lacks any discussion about the fact that current blocking culverts in the project area will not be replaced as part of this project. On page 80, the BA should quantify the existing and potential pollutant loading for total suspended solids, total copper, total zinc, cadmium, chromium, oil and grease which are common pollutants found in stormwater from motor vehicles (WDOE, 2006). This analysis should determine whether the proposed project will cause violations of Washington State water quality standards and cause degradation to the existing quality of the surface water. The range (maximum and minimum) of concentrations (and loads) of each pollutant should be estimated for the comparison of No- Build and Proposed Project effects. On pages 80 -81, the ability for juvenile salmon to maintain station in a stream during storm events is only one potential impact that may occur due to stormwater. There are other impacts not considered in the BA such as the inability to feed and thus an increased risk of disease and predation. On page 81, please elaborate on the proposal to compensate the loss of floodplain storage with the removal of fill at the Springbrook Creek wetland mitigation bank. On page 82, the BA fails to note several projects that are interrelated and independent effects including, but not limited to, the expansion of SR 518 and the stormwater improvement project at the Renton Village. On page 83, please see our comments regarding concerns with the Springbrook Creek wetland mitigation bank (attached). On page 86, the BA fails to consider cumulative impacts as the result of other projects in or near the project area including the construction of a trail within the Springbrook Creek wetland mitigation bank, the expansion of SR 518, the next phase of I -405 Tukwila to Renton, etc. • Muckleshoot Indian Tribe Fisheries Division October 25, 2006 Comments to Public Notice 200600097 Page 10 On page 88, critical habitat for Puget Sound chinook will be adversely affected by this project as noted in the comments above. The project will also adversely affect EFH habitat for coho. Comments to the Surface Water and Water Quality Discipline Report On page 19, please clarify which version of the WSDOT Highway Runoff Manual will be used for this project and if this manual version has been approved by the Washington Department of Ecology. On page 25, the portion of the Green River in the study area is on the 303(d) list for Dissolved Oxygen. Also, there is a report available from King County's Green - Duwamish Water Quality Assessment that should be used for this project (Herrera 2005). See also ftp: / /dnr. metrokc .gov /dnr/library/2004/KCR1636/7- black - river.pdf Finally, it seems that there should be water quality data available for the historic coalmine drainage as a requirement to discharge into Thunder Creek. On page 26, several of the substances listed on this page that can be found in stormwater can directly harm salmon by causing physical problems. For example, copper is harmful to salmon (see Baldwin et al 2003; Chapman 1978). Stormwater can also cause temperature and dissolved oxygen problems. On page 27, this DR should quantify existing stormwater facilities' ability to meet water quality standards, as well as the new facilities. Also on this page, please provide documentation that the National Marine Fisheries Service has agreed that the WSDOT Highway Runoff Manual complies with ESA requirements. On page 28, if the new stormwater ponds will not have a permanent wetpool due to concerns with the creating waterfowl habitat, then there should be an analysis to demonstrate that the new ponds will remove suspended solids and meet water quality standards. Also, please quantify the capacity of the existing stormwater ponds. Finally, please quantify the current treatment efficiency of the existing biofiltration swales. On page 29, please identify which pollutants can be removed up to 90% via ecology embankments. On page 30, please identify how much of the project area is within 10000 feet of the Renton Municipal airport. On page 31, the pollutant loading calculations were completed for total suspended solids, total copper and total zinc for the three basins in the project area. These calculations did not include other parameters, such as cadmium, chromium, oil and grease, which are also common pollutants found in stormwater from motor vehicles (WDOE, 2006). In order to analyze whether the proposed project will cause violations of Washington State water quality standards and cause degradation to the existing quality of the surface water, a more comprehensive set of parameters, which are relevant to highways, should be analyzed. In addition, the range (maximum and minimum) of concentrations (and loads) of each pollutant should be estimated for the comparison of No -Build and Proposed Project effects, not just the means. On page 33, the Best Management Practices (BMPs) should include both sediment and erosion controls given that several of the streams in the project area are already adversely affected by sediment embeddedness. On page 39, we did not get a copy of the cumulative effects analysis discipline report; hence we were unable to review it. There is a potential for cumulative impacts to occur to salmon and their habitats, including water quality as the result of this project and the SR 518 expansion. • • Muckleshoot Indian Tribe Fisheries Division October 25, 2006 Comments to Public Notice 200600097 Page 11 References Baldwin, D.H., J.F. Sandahl, J.S. Labenia, and N.L. Scholz 2003. Sublethal effects of copper on coho salmon: impacts on nonoverlapping receptor pathways in the peripheral olfactory nervous system. Environ. Toxicol. Chem. 2003 Oct; 22(10):2266 -74 Chapman, G.A. 1978. Toxicities of cadmium, copper and zinc to four juvenile stages of chinook salmon and steelhead. Trans. Am. Fish. Soc. Vol. 107 (6): pp 841 -847. Herrera Enviromental Consultants, Inc. 2005. Year 2003 Water Quality Data Report, Green - Duwamish Watershed Water Quality Assessment. Report prepared for King County Department of Natural Resources and Parks in association with Anchor Environmental, LLC and Northwest Hydraulic Consultants, Inc. King County Department of Natural Resources (KC DNR) 2004. Lower Green River Baseline Habitat Survey Report. Available at: http:// dnr. metrokc. gov /WRIAS /9 /LowerGreenBaseline.htm Spence, B.C., G.A. Lomnicky, R.M. Hughes, and R.P. Novitizki. 1996. An ecosystem approach to salmonid conservation. TR- 4501 -96 -6057. ManTech Environmental Research Services Corp., Corvallis, OR (Available from the National Marine Fisheries Service, Portland, Oregon and http: / /www.nwr.noaa. gov/Publications / Guidance- Documents/ManTech- Report.cfm) U.S. Forest Service 1993. Forest Ecosystem Management: An Ecological, Economic and Social Assessment Report of the Forest Ecosystem Management Assessment Team, July 1993. Known as the FEMAT report. WDOE, 2006. Phase I Draft Fact Sheet for National Pollutant Discharge Elimination System (NPDES) and State Waste discharge General Permit for Discharges from Large and Medium Municipal Separate Storm Sewers. Washington State Department of Ecology, Lacey, WA. US Army Corps of Engineers Regulatory Branch P.O. Box 3755 Seattle, WA 98124 -3755 Attn: Sandra Manning, Project Manager Dear Ms. Manning and Ms. Ponzio: erely alien atershed and Land Use Team Leader Cc: Mike Grady, NOAAF Emily Teachout, USFWS Krista Rave - Perkins, EPA Allison Ray, WSDOT, 1-405 project Larry Fisher, WDFW, Region 4 Lc; .},1 i,uiabui i, ►v Lt tiV, riegion 4 • MUCKLESHOOT INDIAN TRIBE Fisheries Division 39015 - 172 nd Avenue SE • Auburn, Washington 98092 -9763 Phone: (253) 939 -3311 • Fax: (253) 931 -0752 April 26, 2006 Washington Department of Ecology SEA Program 3190 160 Ave SE Bellevue, WA 98008 -5452 Attn: Rebecca Ponzio, PM RE: Joint Public Notice for Proposal and Application for a Wetland Mitigation Bank (200600100, Springbrook Mitigation Bank) The Muckleshoot Indian Tribe Fisheries Division has reviewed the above referenced Joint Public Notice and the applicant's prospectus to create a wetland mitigation bank in the Springbrook Creek watershed, a subbasin in the Green - Duwamish basin. The project proposes to create, enhance, and rehabilitate wetlands in five locations on approximately 131 acres within the Springbrook Creek watershed by creating a wetland mitigation bank that would be protected in perpetuity by a conservation easement. The "service area" for this bank would include portions of Watershed Resource Inventory Areas (WRIAs) 8 and 9, notably the Green River, the Black River, Lake Washington, May Creek, Mill Creek and the Cedar River. We offer the following comments in the interest of protecting and restoring the Tribe's fisheries resources. We are attaching our comments to the project aspects, permitting processes and the Mitigation Bank Instrument. We would also be happy to meet with the Bank Oversight Committee to discuss and address these concerns, since we are not a member of the Bank Oversight Committee. We reserve the right to comment further on this issue as additional details are identified. Thank you for the opportunity to comment on this proposal. Please call me at 253- 876 -3116 if you have any questions or would like to set up a meeting. Muckleshoot Indian Tribe Fisheries Division Comments to the Joint Public Notice 200600100 Project Aspects Concerns • • April 26, 2006 Page 2 Our main concern with the proposed Springbrook Creek wetland mitigation banking is with the proposed service area. First, the proposed service area where potential impacts could occur and would be mitigated by the bank is too large and should not include any portion of WRIA 8, the Lake Washington/Cedar /Sammamish watershed. The primary reason for this concern is that, according to NOAA Fisheries, there are different chinook populations (i.e. Green River versus Cedar River and northern Lake Washington tributaries) in these two basins (see www.nwfsc .noaa.gov /trt/puget/ponid.udf). The current conditions of these two populations are very different and the WRIA 8 chinook populations are much lower than the WRIA 9 populations. Therefore, it is inappropriate and precedent setting to allow impacts to WRIA 8 chinook habitat to be mitigated in WRIA 9. Also, there may be differences in coho and steelhead populations between WRIAs 8 and 9; these populations would also suffer similar impacts if the service area remains as proposed. We recommend that the service area be reduced substantially as follows: The northern boundary should include those portions of WRIA 9 that are affected by the I-405 project from I -5 to the Cedar River bridge crossing. The eastern boundary should include the areas to the west of SR 515 as shown on Figure 2. The southern boundary should be SR 516 and the western boundary should be SR 181. See the attached Figure for a general representation of these proposed boundary changes. The other reason that the service area should be reduced or otherwise modified is that there is the potential for projects to propose to mitigate stream and river impacts at the wetland mitigation bank. Generally, we do not support exchanging wetland mitigation for stream and river impacts, as these habitat types provide different ecological functions and are not interchangeable. For example, with the I-405 Renton Nickel project, there will be stream impacts that could potentially be mitigated by restoring Springbrook Creek, where it is adjacent to wetland mitigation sites A and B, for direct salmon habitat benefits. However, to our knowledge there is no such proposal and our concern is that the wetland bank will be proposed to mitigate for stream impacts due to highway widening. Such an approach would likely further set back salmon restoration efforts and create a bad precedence. A third concern with the project is the lack of detail about potential projects that will seek credits from the bank. It appears that any project within the proposed service area could seek credits from the bank. Since various projects (housing developments versus roadways versus industrial, etc.) do not have equal environmental impacts, it is important to limit the types of projects that could be eligible to receive credits from the bank. It is also important to ensure that future development in the mitigation area does not direct stormwater to the bank, to avoid additional impacts that could occur and limit the mitigation results of the bank. Wetland Mitigation Concerns Overall, the proposed wetland mitigation actions should improve the five units of the proposed bank compared to existing conditions. However, the City of Renton is proposing to construct a non - motorized trail within 40 feet of Springbrook Creek, which will limit the restoration efforts needed to make Springbrook Creek fully functional in Unit A. The proposed 18 foot trail construction swath will remove existing trees from the riparian corridor. This temporal impact is not considered in the Public Notice nor is there mitigation proposed. In addition, the operation and maintenance of the trail will permanently eliminate the opportunity for trees to grow along the eastern portion of Springbrook Creek, which is an additional impact. Both of these actions require mitigation. People using the trail will introduce an element of disturbance to fish using Springbrook Creek that does not currently exist. This impact was also not considered. In previous conversations with WSDOT, we recommended that the trail be relocated to avoid the riparian area of Springbrook Creek. If it was determined that the trail had to go along the stream, then we recommended that sufficiently sized wood be placed into Springbrook Creek to partially mitigate for these impacts, particularly at Site E to benefit salmonids in Springbrook Creek. Figure 8 of the Permit shows some wood; however, • Muckleshoot Indian Tribe Fisheries Division April 26, 2006 Comments to the Joint Public Notice 200600100 Page 3 there is no technical basis for the amount shown on this figure, nor are the sizes of wood indicated. We could not find this information in the prospectus. Furthermore, it is not clear if the wood shown in Figure 8 is necessary for the enhancement of the site or is mitigation for the loss of trees at the trail site. Another concern is the potential success of the wetland mitigation banking units. Figure 1 shows other areas near the site, including the Seattle Times Mitigation site and the Long Acres Mitigation site. It would be useful for reviewers to have additional information about these existing sites to assist with determining the likely success (or failure) of the bank site. An additional issue for the wetland mitigation bank is the proposal to use herbicides to eliminate reed canarygrass growing on the units. On page 9 of the prospectus, the plan is to mow and spray herbicides on reed canarygrass on Units A, B and C. Since Units A and B parallel Springbrook Creek, there is the potential for the applied herbicide to enter the stream and adversely affect aquatic resources. Additional information is needed before this action be approved. Permitting and Mitigation Banking Instrument The Tribe's Fisheries Division would like to receive information and proposals (including applications and/or JARPAs) for projects that will be using this wetland bank, as early as possible. The mitigation banking instrument should include language that includes notification to the Tribe's Fisheries Division as a requirement. The Tribe's Fisheries Division should also be given an opportunity to meet with the Banking Oversight Committee to address any concerns it may have. Carol Lumb - RE: 1-405 Nickel Fund Pr Sorry it hasn't gotten out sooner. Karen t[Scanned] From: "Karen Walter" < Karen .Walter @muckleshoot.nsn.us> To: "Carol Lumb" <clumb @ci.tukwila.wa.us> Date: 9/25/06 3:34PM Subject: RE: 1-405 Nickel Fund Project[Scanned] Hi Carol, The letter to the Corps permit (with a Cc to you) is still in review. I hope to have it out this week. Original Message From: Carol Lumb [mailto:clumb @ci.tukwila.wa.us] Sent: Monday, September 25, 2006 2:07 PM To: Karen Walter Subject: 1 -405 Nickel Fund Project[Scanned] Hi Karen: I am back from vacation and trying to re-join the working world here - it's tough! When we talked just before I left, I thought you were going to send a letter to WSDOT and send me a copy discussing your concerns about the project, but I did not find anything in my in -box when I got back. Have the issues you were concerned about been addressed by WSDOT? I am expecting a response from WSDOT to my letter in the next day or two and would like to wrap up my staff reports soon, so if you have any comments I need to have them asap. Thanks much - hope your week is going well so far. Carol Page 1 s Carol Lumb - RE: Wetland Data Sheets fnr 1-405 Renton Nickel project Page 1 From: Carol Lumb To: Terry Drochak Date: 8/31/06 11:21 AM Subject: RE: Wetland Data Sheets for 1-405 Renton Nickel project Thanks Terry! »> "Terry Drochak" < terry.drochak @i405.wsdot.wa.gov> 08/31/06 10:39AM Hi Carol, We did receive your letter and Joe and I will coordinate our responses to your letter when he returns next week. Talk to ya soon. Terry Original Message From: Carol Lumb Finailto :clumb(a�ci.tukwila.wa.usl Sent: Wednesday, August 30, 2006 11:39 AM To: Terry Drochak Subject: RE: Wetland Data Sheets for 1-405 Renton Nickel project Hi Terry: Joe was able to provide the data sheets and Sandra has had a chance to review. The review of the project is on hold (i.e. I haven't started work on either of the staff reports) - mostly waiting for a response from WSDOT to the letter that went out last week with some questions we have. If you haven't seen it yet, let me know and I'll e-mail an unsigned copy to you. I do need to review the environmental information as part of the shoreline review, as some of this information is incorporated into the staff report. Once we get a response to the questions and the SEPA/NEPA determination with supporting checklists, then it will take a couple weeks probably to get the staff report done and Shoreline permit signed by the Director. Just so you know, I will be out of the office on vacation 9/8 through 9/22. What is WSDOT's time frame for construction? Let me know if you need me to e-mail you the letter that went out last week. Carol »> "Terry Drochak" < terry.drochak(a)i405.wsdot.wa.gov> 08/30/06 11:29AM >» »> Hi Carol, Just checking in to see if Joe was able to place the Wetland Data Sheets on the FTP site for you and you successfully downloaded them. Joe is out on paternity leave this week so I'm just following up on this while he's out. Also, is our review totally on hold until we submit the DNS? How long do you anticipate the remainder of the review will take once the DNS is »> Carol Lumb - RE: Wetland Data Sheets f r 1 -405 Renton Nickel project • submitted, particularly since the public notice period has concluded. I'm having to answer some internal questions about the schedule. Thanks. Terry Terry Drochak WSDOT 1-405 Project Team 600 - 108th Ave. NE Suite 405 Bellevue, WA 98004 Office: (425) 456 -8595 Cell: (206) 818 -0996 Email: terry.drochak c(D i405.wsdot.wa.gov Original Message From: Carol Lumb [ mailto :clumb Sent: Thursday, August 24, 2006 8:58 AM To: Terry Drochak Subject: Wetland Data Sheets Hi Terry: just checking to see if you were able to separate out the data sheets for Tukwila to put on the FTP site? If not, if you could just put the whole document on the FTP site, we'll try to find the pages that relate to Tukwila wetlands. thanks! Carol This e -mail and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are NOT the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be advised that you have received this e-mail in error and that any use, dissemination, forwarding, printing or copying this e-mail is strictly prohibited. August 25, 2006 Mr. Terry Drochak Project Team, I-405 Nickel Fund Improvements 600 -108` Avenue N.E., Suite 405 Bellevue, WA 98004 RE: L06 -037, Shoreline Substantial Development Permit, L040, Special Permission Director for I -405 Nickel Fund Improvements Dear Terry: We have had a chance to review the Wetland Sensitive Area Study, Wetland Mitigation Memorandum, the Stormwater Technical Information Report, Tree Mitigation Memo and the General Shoreline Use Memorandum in more detail and have the following questions relating to these information items: CL 0 • City of Tukwila Department of Community Development Steve Lancaster, Director 1. For Wetland 0.9R, please explain how the proposed storm water outfall into the Nelson Side Channel complies with TMC 18.45.070 B.3 which permits new surface water discharges to sensitive areas or their buffers from detention facilities provided that the discharge meets the clean water standards of RCW 90.45 and WAC 173.200 and 173.201 as amended and does not adversely affect water level fluctuations in the wetland. 2. In Table 2, page 5 of the Wetland Mitigation Memorandum, it states that the stormwater outfall has been designed to minimize impacts to wetland 0.9R. Please explain this statement. 3. The Tukwila Sensitive Areas Ordinance requires mitigation for impacts to wetlands at a ratio of 1.5:1 for restoration or creation and 3:1 for enhancement. It is not clear from the Wetland Mitigation Memorandum how the mitigation credits relate to the requirements of the TMC. Please explain. 4. Can you please provide the survey data for the wetlands you flagged? 5. In Table 3 -2, Wetland Ratings, for wetland 0.9R, the Nelson side channel, the City has identified this wetland on our wetland inventory. Page 1 of 2 08/25 /2006 10:07:00 AM Steven M. Mullet, Mayor ATTACHMENT D � ' • 1 Mr. Terry Rocha " Y I -405 Nickel Fund Project Team August 25, 2006 6. Tables 3 -1 and 3 -2 both classify wetland 0.9R as PAB, Palustrine Aquatic Bed (PAB), however the description of the wetland under "Wetland Classification" on page 3 -7 states the wetland is a Palustrine Open Water (POW) wetland that is seasonally inundated. The wetland data sheets classify the wetland as a POW. Please clarify which classification the wetland is. In addition, we disagree that the wetland is seasonally inundated — most of it is permanently inundated. What percentage of the wetland is open water? 7. On the permit drawing for the shoreline substantial development permit, please explain what activities are taking place in the identified impact areas besides the small amount of paving that is identified. 8. What trees will be removed during the course of construction? If they are located in a sensitive area or its buffer, then the requirements of TMC 18.54 must be met, in particular TMC 18.54.130 3. The City prefers that trees be replaced inside the City limits, possibly around wetland 0.9R. If you have any questions, please let me know. I can be reached at 206 - 431 -3661. Sincerely, Carol Lumb Senior Planner cc: Nora Gierloff, Planning Manager Sandra Whiting, Urban Environmentalist Joe Pursley, I -405 Nickel Fund Team CL Page 2 of 2 08/25/2006 10:07:00 AM Q:\Nickel Fund Improvements\Drochak2.doc 4411r, Carol Res onse to Comment pip C i o f Tukwila From: Carol Lumb To: Joseph Pursley Date: 9/27/06 3:24PM Subject: Re: Response to Comments form City of Tukwila Hi Joe: No problem with getting me the response next week. As I mentioned on the phone just now, I am out of the office on Monday, but in the rest of the week. I will summarize the questions that I've come up with as I've worked through the staff reports. I will also attach a draft of the staff report below so you can see the criteria that must be met in order for the Director to approve the Special Permission permit. Please remember the report is still very much a draft and needs a lot more work. I'm attaching it just so you can see the "decision tree" that we go through. Stormwater: (1) the TIR says (pg. 2) that two proposed ponds would provide detention for the new roadway. I don't find a map that shows where the pond that discharges to a storm manhole which drains to Gilliam Creek is located. Can you please identify the location of this pond? (2) what kind of treatment will there be for water in the ponds before it is discharged to either Gilliam Creek or the Nelson side channel? (3) What is the existing storm water collection and treatment system like for this area? Wetlands: (1) what is meant by "rehabilitating" portions of the Springbrook Creek wetland? Is there a definition for this term? It doesn't equate to our SAO options (restore, create or enhance). (2) Can I get a copy of the Mitigation Bank Instrument to review please? (3) There is no information that addresses whether there will be impacts to fish, wildlife or their habitat. This criteria is from TMC 18.45.090 B. and is one of six that must be addressed to approve alterations to a wetland. Streams: we talked about which streams will experience temporary impacts to their buffers due to construction. The Sensitive Areas Review Memo says there are two streams that will have temporary impacts & we identified Cottage Creek as one of the streams. Is there a second stream that will experience temporary impacts? If so, which one. Thanks for your help with answers to these questions. Carol »> "Joseph Pursley" <joseph.purslev(i405.wsdot.wa.gov> 09/27/06 10:53AM Carol, Allison Ray the 1-405 Project Manager will be out of the office until Monday the 2nd. We need to have here review and sign the Response to Comments letter before we send it to you. Her review and signature ensures consistency of correspondence with all the permitting agencies and Cities. I apologize for this delay. On Monday I will also be including an updated Wetland Mitigation Memo and Plan Sheet. Please contact me if you have any questions or comments. Cheers, Joe Joseph R. Pursley 1-405 Project Team 425 -456 -8605 »> This e-mail and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are NOT the intended recipient or the person Page 11 Mr. Terry Drochak Project Team, I -405 Nickel Fund Improvements 600 -108 Avenue N.E., Suite 405 Bellevue, WA 98004 RE: L06 -037, Shoreline Substantial Development Permit, L040, Special Permission Director for I -405 Nickel Fund Improvements Dear Terry: This letter is a follow up to our conversation today about the Nickel Fund road improvements along I -405 in Tukwila and the status of the environmental review for the project. The State is taking the lead on environmental review. I understand from our conversation that you expect agreement with the National Oceanic and Atmospheric Administration on the Environmental Assessment for this project by the end of August, and issuance of a DNS soon thereafter. We need to review the SEPA/NEPA documentation before we can complete our review of the shoreline substantial development permit application and the Special Permission, Director application to fill certain Type 3 wetlands within the project boundaries. As a result, the 120 -day clock has been stopped until we receive that information, as well as the wetland data sheets for review. Upon receipt of these items, the City will re- review them for completeness and will mail you written notification of completeness or incompleteness within 14 days. These applications will expire if we do not receive the additional information within ninety days of the date of this letter unless an extension is granted pursuant to Section 18.104.070(E). Please let me know if you have any questions. I can be reached at 206 - 431 -3661. As I mentioned, I will be out of the office September 8 through September 22, 2006. Sincerely, Carol Lumb Senior Planning cc: Nora Gierloff, DCD Planning Manager Joe Pursley, I -405 Project Team CL Q: \Nickel Fund Improvements \Drochak.doc • city of Tukwila • Department of Community Development Steve Lancaster, Director August 15, 2006 Page 1 of I 08/15/2006 5:27:00 PM Steven M. Mullet, Mayor 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 F Carol Lumb - RE Project Status From: "Terry Drochak" < terry.drochak @i405.wsdot.wa.gov> To: "Carol Lumb" <clumb @ci.tukwila.wa.us> Date: 8/14/06 1:44PM Subject: RE: Project Status Hi Carol, I'm out of the office today but I wanted to quickly let you know I received your email. I'll get back to you about the items below either tomorrow (8/15) or Wednesday (8/16). Thanks. Terry PS- Sorry about the voicemail glitch. Hopefully the tech folks are working on that. From: Carol Lumb [mailto:clumb @ci.tukwila.wa.us] Sent: Mon 8/14/2006 1:37 PM To: Terry Drochak Subject: Project Status Hi Terry: I started to leave you a voice mail, but your system seems to be impatient today as it disconnects before you have a chance to finish the message - this happened to me earlier today when leaving a message for Joe Pursley and again when I called the main number. I understand Joe is working remotely from another location and he suggested I contact you with my questions. ( O i4 ' ,A/ /1, 41' Anyway, I wanted to check on a couple things: , p - arg' col r: 1. the status of the NEPA/SEPA for the 1 -405 Nickel Fund improvemen ( 2. has WSDOT responded to the Muckleshoot Tribe comments that w re sent on 7/21? I will need to espond in the context of my shoreline staff report to the comments tha pertain to the Nickel Fund project. `3. I had asked for a copy of the Appendix B to the wetland study prepa ed for this project. Joe sent me a P site to access the study, but I had trouble accessing it, so I was ho ing I could just get a hard copy of the Appendix. Thanks very much. Carol Lumb Senior Planner 206 -431 -3661 • 51-40 c O k i HI ' `156 — a0 This e-mail and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are NOT the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be advised that you have received this e -mail in error and that any use, dissemination, forwarding, printing or copying this e-mail is strictly prohibited. 6o -4017 b w - a.-, a- .r a,.� 6S 'I 4• '3c, c c-. 0 or oft (d' is/' 3.4. tilt ' c ., . r- e-trs..[- Page 1i 21 6-43-Vs — 1 6-n ptafuo'!` tw t .Dv' 1 Dept. Of Communi Development City of Tukwila AFFIDAVIT OF DISTRIBUTION I , Sc., (E HEREBY DECLARE THAT: Project Number: LOS — D3 - 7 L 6 C.e "C 1 Mailer's Signature: (/ it II Notice of Public Hearing Determination of Non - Significance Notice of Public Meeting Mitigated Determination of Non - Significance Board of Adjustment Agenda Pkt Determination of Significance & Scoping Notice Board of Appeals Agenda Pkt Notice of Action Planning Commission Agenda Pkt . Official Notice Short Subdivision Agenda otice of Application Shoreline Mgmt Permit Notice of Application for Shoreline Mgmt Permit • __ __ FAX To Seattle Times Classifieds Mail: Gail Muller Classifieds PO Box 70 - Seattle WA 98111 Other • s� Was mailed to each of the addresses listed on this I day of:JLL,i&in the year 20.cQ P: GINAWYNETTA/FORMS /AFFIDAVIT -MAIL 08/29/003:31 PM • Project Name: 113,__c - D i Project Number: LOS — D3 - 7 L 6 C.e "C 1 Mailer's Signature: (/ it II Person requesting mailing: Ci i'�,c' LA • s� Was mailed to each of the addresses listed on this I day of:JLL,i&in the year 20.cQ P: GINAWYNETTA/FORMS /AFFIDAVIT -MAIL 08/29/003:31 PM • CITY OF TUKWILA NOTIC OF APPLICATION PROJECT INFORMATION Allison Ray, for Washington State Department of Transportation has filed applications for the I-405 Nickel Fund Improvement project along the Interstate 405 corridor between I -5 and State Route 169 in Renton to widen pavement and re- stripe lanes to create additional north and southbound general purpose and auxiliary lanes. Portions of the project fall within the shoreline of the Green River. The project also involves filling portions of Type 3 wetlands and adding an outfall from a new stormwater treatment facility to discharge into the Nelson side channel wetland. Permits applied for include: L06-037 and L06 -040 Other known required permits include: Joint Aquatic Resources Permit Application (JARPA); Clean Water Act Section 404 (US Army Corps of Engineers) permit; Section 402 National Pollution Discharge Elimination System (NPDES) permit (Ecology); Section 401 Water Quality Certification (Ecology). Studies submitted with the applications include: Technical Information Report (Stormwater); Wetland Sensitive Area Study; General Shoreline Use memorandum; Design Geotechnical Memorandum; Tree Mitigation Memorandum. A National Environmental Policy Act (NEPA) /State Environmental Policy Act environmental assessment is being conducted for the project. A SEPA determination has not been issued for this project yet. FILES AVAILABLE FOR PUBLIC REVIEW The project files are available at the City of Tukwila. To view the files, you may request them at the counter at the Department of Community Development (DCD), located at 6300 Southcenter Blvd. #100, Tukwila, WA, 98188. Please call (206) 431 -3661 to ensure the availability of the files. Project Files include: L06 -037, Shoreline Substantial Development Permit and L06 -040, Special Permission Director, Sensitive Areas Ordinance Departure. OPPORTUNITY FOR PUBLIC COMMENT Your written comments on the project are requested. They must be delivered to DCD at the address above or postmarked no later than 5:00 P.M., Friday, July 21, 2006. Any person may comment on the application and /or request a copy of the decision and any hearing held on the project and the appeal process by requesting such notification at the address noted above. APPEALS You may request a copy of any decision, information on hearings, and your appeal rights by calling DCD at (206) 431 -3670. The decision on L06-037, Shoreline Substantial Development Permit may be appealed to the Washington State Shoreline Hearings Board. The decision on L06 -040, Special Permission Director, may be appealed to the City of Tukwila Planning Commission. For further information on these proposals, contact Carol Lumb at (206) 431 -3661 or visit our offices at 6300 Southcenter Boulevard, Suite #100, Monday through Friday, 8:30 a.m. to 5:00 p.m. Application Filed: May 23, 2006 Notice of Completeness Issued: June 7, 2006 Notice of Application Issued: June 21, 2006 CL Page 1 of 1 06/16/2006 9:47 AM q:\Nickel Fund Improvements\L06 -037 NOA.doc l 0 WETLAND 0.1R 10 WETLAND 2.2R 0 WETLAND 0.15R 11 WETLAND 2.31R WETLAND 0.25M ® WETLAND 0.3R 3 WETLAND 2.81L Q WETLAND 0.4L (3 WETLAND 2.9L I © WETLAND 0.5L 3 WETLAND 24.7R 0 WETLAND 0.6L 3 WETLAND 25.7L § © WETLAND 0.9R 1© WETLAND 25.0L 3i 9O WETLAND 1.7R PURPOSE: Roadway improvements O STREAM 09.GR -0.2 11 STREAM 09.RH -3.0 O STREAM 09.GR -0.4 12 STREAM 09.RH -3.0 0 STREAM 09.GR -0.7 13 STREAM 08.LVV -3.7 ® STREAM 09.DW-0.8 14 STREAM 09.SC -2.8 5O STREAM 09.GR -1.8 15 STREAM 09.SC -25.7 © STREAM 09.SC -2.8 o 7O STREAM 09.SC -2.8 Nr pvF. ® STREAM 09.RH -2.8 O STREAM 09.RH -2.8 10 STREAM 09.SC -2.8 : lock PRING 1-405,1-5 to SR169 & SR167,1.405 to SW 41ST ST REFERENCE /: 200600097 APPLICANT: WSDOT Key Map & Vicinity Map sp SW ITS ST IS 180TH s 0 EI 0 0 1 PROPOSED/RETAIN: 1.7 acres of impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4/28/08 TD -2015L 0 TD -2117L ® TD -2128L TD -2035L 0 TD -2118L TD -2148L TD -2045R 10 TD -2116R m TD -2158L TD -2047R m TD -2119L m TD -2155L TD -2050R ® TD -2119R m TD -2159L TD -2054L m TD -2120R 20 TD -2162R TD -2108L 14 TD -2127L ® TD -1065L (SOOfH): ONG: - 122 °13'02" LAT: 47 °26'36" HORIZONTAL DATUM: NAD 8391 VERTICAL DATUM NAVD 88 SHEET 2 OF 27 • FEDERAL AGENCIES ( U.S. ARMY CORPS OF ENGINEERS FEDERAL HIGHWAY ADMINISTRATION ( ) DEPT OF FISH & WILDLIFE WASHINGTON STATE AGENCIES ( ) OFFICE OF ARCHAEOLOGY () DEPT OF SOCIAL & HEALTH SERV. ( ) TRANSPORTATION DEPARTMENT ADEPT OF ECOLOGY, SHORELAND DIV () DEPT NATURAL RESOURCES () DEPT OF ECOLOGY, SEPA DIVISION' () OFFICE OF THE GOVERNOR 04 OFFICE OF ATTORNEY GENERAL () DEPT OF COMM. TRADE & ECONOMIC DEV. • SEND SITE CHKLIST DE DEPT OF FISHERIES & WILDLIFE > KING COUNTY AGENCIES () BOUNDARY REVIEW BOARD () FIRE DISTRICT #11 () FIRE DISTRICT #2 () K.C. WASTEWATER TREATMENT DIVISION () K.C. DEPT OF PARKS & REC () KC. ASSESSOR'S OFFICE ( ) TUKWILA SCHOOL DISTRICT , TUKMLA LIBRARY () RENTON UBRARY ( ) KENT LIBRARY () CITY OF SEATTLE LIBRARY () QWEST ( ) SEATTLE CITY LIGHT () PUGET SOUND ENERGY () HIGHLNE WATER DISTRICT () SEATTLE WATER DEPARTMENT ( ) AT &T CABLE SERVICES () KENT PLANNING DEPT ( TUKWILA CITY DEPARTMENTS: -ik1 �)C PUBLIC WORKS () FIRE () POLICE () FINANCE ( ) PLANNING () BUILDING () PARKS & REC. () MAYOR ( ) CITY CLERK () PUGET SOUND REGIONAL COUNCIL ( ) SW K C CHAMBER OF COMMERCE KMUCKLESHOOT INDIAN TRIBE p CULTURAL RESOURCES PROGRAM pQ FISHERIES PROGRAM poiWILDLIFE PROGRAM ( ) SEATTLE TIMES ( ) SOUTH COUNTY JOURNAL p:\ADMINISTRATIV E \FORMS \CHKLIST.DOC SCHOOLS/LIBRARIES UTILITIES CITY AGENCIES OTHER MEDIA • () U.S. ENVIRONMENTAL PROTECTION AGENCY () U.S. DEPT OF H.U.D. () NATIONAL MARINE FISHERIES SERVICE ( ) HEALTH DEPT () PORT OF SEATTLE gorKC. DEV & ENVIR SERVICES-SEPA INFO CNTR ( ) KC. TRANSIT DIVISION - SEPA OFFICIAL ( ) KC. LAND & WATER RESOURCES )(POSTER LIBRARY 'O C PUBLIC LIBRARY ( ) HIGHLINE SCHOOL DISTRICT ( ) SEATTLE SCHOOL DISTRICT () RENTON SCHOOL DISTRICT ( ) OLYMPIC PIPELINE ( ) VAL -VUE SEWER DISTRICT () WATER DISTRICT #20 ( ) WATER DISTRICT #125 ( ) CITY OF RENTON PUBLIC WORKS ( ) BRYN MAWR- LAKERIDGE SEWEWWATER DISTRICT )(RENTON PLANNING DEPT () CITY OF SEA -TAC ( ) CITY OF BURIEN ( ) TUKWILA PLANNING COMMISSION MEMBERS ( ) TUKWILA CITY COUNCIL MEMBERS () CITY OF SEATTLE - SEPA INFO CENTER - DCLU ( ) STRATEGIC PLANNING OFFICE' NOTICE OF ALL SEATTLE RELATED PLNG PROJ. LOCAL AGENCIES >erbUWAMISH INDIAN TRIBE () P.S. AIR POLLUTION CLEAN AGENCY () SOUND TRANSIT () DUWAMISH RIVER CLEAN -UP COALITION *SEND NOTICE OF ALL APPLICATIONS ON DUWAMISH RIVER ( ) HIGHLINE TIMES ( '' ) G ';!'/I"« far uc ltt^e()- ,2 1 044V A i Ia.ce, Shoreline Permit Notice of Decision: Mail to: (within 8 days of decision; 21-day appeal period begins date received by DOE) Department of Ecology Shorelands Section State Attorney General *Applicant *Indian Tribes *Other agencies as necessary (checked off on attached list). * Any parties of record * send only the staff report, site plan and the SEPA Determination Send These Documents to DOE and Attorney General: Permit Data Sheet Shoreline Substantial Development Permit (3 -part from Sierra) Findings (staff report or memo) Shoreline Permit Application Form (filled out by applicant) Drawings/Plans of project (site plan, elevations, etc. from PMI's) — Site plan, with mean high water mark & improvements — Cross - sections of site with structures & shoreline - Grading Plan — Vicinity map SEPA determination (3 -part from Sierra) Findings (staff report or memo) SEPA Checklist (filled out by applicant) Any background studies related to impacts on shoreline Notice of Application Affidavit of Distribution (notice was mailed) AI,IC NOTICE MAILINGS FOR P.IITS SEPA MAILINGS Mail to: (comment period starts on date of mailing) Dept. of Ecology Environmental Review Section *Applicant *Other agencies as necessary (checked off on attached list) 'Any parties of record * send only the staff report, site plan and the SEPA Determination KC Transit Division — SEPA Official would like to receive information about all projects that might affect transit demand Send These Documents to DOE: SEPA Determination (3 -part from Sierra) Findings (staff report, usu. with MDNS) SEPA Checklist (filled out by applicant) Drawings/Plans of project (site plan, elevations, etc. from PMT's) Affidavit of Distribution (notice was mailed or sent to newspaper) SHORELINE MAILINGS: Notice of Application for a Substantial Development Permit must be mailed to owners and to property owners within 500 feet of subject property, comments are due 30 days after the notice of application is mailed/posted. The notice of Application for Shoreline Substantial Development Permit must include a statement that any person desiring to submit written comments on the application or desiring to receive notification of the final decision on the application may do so within 30 days of the notice of application. If a hearing will be held on the application, the hearing notice must include the information that written comments may be submitted, or oral presentation made at the hearing. P: IADMMISTRATNEIFORMS\CHKLIST.DOC Impression antibourrage eta sechage rapide www.avery.com Utilisez le gabarit 5160® • 1- 800 -GO- AVERY410 ALHADEFF MICHAEL D 6305 BEACH DR SW SEATTLE, WA 98136 CITY OF LA CITY OF TUKrLA CITY OF LA 6200 SO CENTER BLVD 6200 SO CENTER BLVD 6200 SO CENTER BLVD TU LA, WA 98188 TUK A, WA 98188 TU LA, WA 98188 EQUIVA SERVICES LLC PO BOX 4369 HOUSTON, TX 77210 NELSEN JA FROHMUTH LOREN 16113 WV EY HWY TUK A, WA 98188 RODRIGUEZ DAVID 6550 SOUTHCENTER BLVD TUKWILA, WA 98188 SCHNEIDER HOMES INC 6510 SOUTHCENTER BLVD , TUKWILA, WA 98188 TUKWILA CI F 6200 SOU CENTER BLVD TUK A, WA 98188 _ Aft 1 \•AML/ Ci51 BUTTACAVOLI GINA . 4724 SW 312TH PL FEDERAL WAY, WA 98023 KLOTZ KEVIN G 6532 S 154TH ST TUKWILA, WA 98188 NELSEN JAMES R & LOREN S FROHMUTH 16113 W VALLEY HWY TUKWILA, WA 98188 SCHNEIDER GERALD E 15523 7517 GREENWOOD AVE N SEATTLE, WA 98103 SEATTLE CITY OF PO BOX 34018 SEATTLE, WA 98124 Joseph Pursley 1-405 Project Team 600 - 108th Ave NE, #405 Bellevue, WA 98004 Aa3AV - I. L CITY OF A 15460 65 AVE S T LA, WA 98188 LOWE'S HIW INC 101 ANDOVER PARK E 200 TUKWILA, WA 98188 ROBB WILLIAM E PO BOX 88510 TUKWILA, WA 98138 SCHNEIDER GERALD E 15523 7517 GREENWOOD AVE N SEATTLE, WA 98103 TAX DEPARTMENT EXTENDED STAY HOTELS 100 DUNBAR ST SPARTANBURG, SC 29306 U AVERY® 5160® ®0915 31V1dIN3i eatleAll ®SA SEATTLE CIT i BETA HOLDINGS LTD BARTH RALPH DARWIN PO BOX 3 : 8 18827 BOTHELL WAY NE 15344 62ND AVE S A -1 SEA , WA 98124 BOTHELL, WA 98011 TUKWILA, WA 98188 FIDECARO RAYMOND E 15346 62ND AVE S A -2 TUKWILA, WA 98188 JACKSON OSCAR 15354 62ND AVE S TUKWILA, WA 98188 ARNZEN LORAN F 15364 62ND AVE S TUKWILA, WA 98188 ELLERBY CAROL J 15370 S 62ND B 4 AVE TUKWILA, WA 98188 PAUL DEBORAH M 9946 RAINIER AVE S SEATTLE, WA 98118 MILLER J LEE & CORA A 15386 S 62ND C 2 AVE TUKWILA, WA 98188 TEELING DOROTHY M 15392 S 62ND C 5 AVE TUKWILA, WA 98188 ARESVIK CLARENCE 6235 S 153RD ST D -3 TUKWILA, WA 98188 ROPER BARBARA M 6241 S 153RD STD -6 TUKWILA, WA 98188 • • CHAN YIPING 15348 62ND AV S A -3 TUKWILA, WA 98188 CAMPBELL FREDERICK T & MESHIA 15356 62ND AVE S A -6 TUKWILA, WA 98188 PRIEST BRANDI 15366 62ND AVE S B -2 TUKWILA, WA 98188 ELDER JOHN W 15372 62ND AVE S B -5 TUKWILA, WA 98188 ROSE ELIZABETH 15378 62ND AVE S B8 TUKWILA, WA 98188 YAMAGUCHI TERRY 15388 62ND AVE S C -3 TUKWILA, WA 98188 ESCAME AURORA A 6231 S 153RD ST 1 -D TUKWILA, WA 98188 KASALKO TANJA F 6237 S 153RD ST D -4 TUKWILA, WA 98188 CAMPBELL PHILLIP D 6245 S 153RD ST TUKWILA, WA 98188 FROID LORRI L 4510 21ST AVE NE SEATTLE, WA 98105 FALUDI JACQUELYN 15358 62ND AVE S A -7 TUKWILA, WA 98188 WILLIAMS PAULA 18777 2ND AVE SW NORMANDY PARK, WA 98166 HANCOCK JAMES J 15374 62ND AVE S B6 • TUKWILA, WA 98188 GENTRY WANDA F 15384 62ND AVE S 1 TUKWILA, WA 98188 RANDALL BRIAN MAX 15390 62ND AVE S C -4 TUKWILA, WA 98188 MACOUREK COREY D & MACOUREK MELISSA J 6233 S 153RD ST D2 TUKWILA, WA 98188 BURBACH JAMES B & DONNA M 17625 161ST AVE SE RENTON, WA 98058 BROOM FRED & DOLORES J 6247 S 153RD ST 2 -E TUKWILA, WA 98188 KELLY JOHN CLINTON 6249 S 153RD ST TUKWILA, WA 98188 EASTERDAY PATRICK D 15344 62ND AVE S E6 TUKWILA, WA 98188 TANOVAN JENNY MAI 6263 S 153RD ST 3 TUKWILA, WA 98188 KING CO HOUSING AUTHORITY 600 ANDOVER PARK W TUKWILA, WA 98188 CITY OF TUKWILA 6200 SOUTHCENT ' : VD TUKWILA, :188 PACIFIC RIM HOLDINGS L L C 6000 SOUTHCENTER BLVD 70 TUKWILA, WA 98188 SOUTHCENTER 6450 BUILDING LLC 190 QUEEN ANNE AVE N 500 SEATTLE, WA 98109 PLUEGER DOROTHY 6273 S 153RD ST TUKWILA, WA 98188 LARSON DAVE N 6285 S 153RD ST H2 TUKWILA, WA 98188 DOWELL ROBERT E 6291 S 153RD ST TUKWILA, WA 98188 • • THEPBOUPHA SOMCHAY 6259 S 153RD ST TUKWILA, WA 98188 TYER THELMA L 6265 S 153RD ST F4 TUKWILA, WA 98188 BANK OF AMERICA PO BOX 2818 ALPHARETTA, GA 30023 CITY OF TUKWILA MSI TRIANGLE LLC 6200 SOUTHCE ► " • : LVD 83 S KING ST 606 TUKWIL:, "A 98188 SEATTLE, WA 98104 KATO KAZUE & ORIN 15419 62ND AVE S TUKWILA, WA 98188 ALLEN MICHAEL 6269 S 153RD ST TUKWILA, WA 98188 CARIVEAU RHONDA L 6275 S 153RD ST G4 TUKWILA, WA 98188 CHEW DENISE S 6287 S 153RD ST 1 -1 TUKWILA, WA 98188 SMITH SUSAN M 4254 SW 323RD ST FEDERAL WAY, WA 98023 LINDSTROM BRUCE D 6253 S 153RD ST TUKWILA, WA 98188 JACOBS LORRAINE PO BOX 88503 TUKWILA, WA 98138 WESTFIELD CORPO ON INC 11601 WILSHI D 11TH LOS A S, CA 90025 CITY OF TUKWILA 6200 SOUTHCENT TUKWILA - • 8188 SEATTLE MENTAL HEALTH INST INC 6100 SOUTHCENTER BLVD I TUKWILA, WA 98188 LOCKHART HOPE E 6271 S 153RD ST G -2 TUKWILA, WA 98188 BRESLICH SANDRA K 6283 S 153RD ST 1H TUKWILA, WA 98188 ANDERSON DONNA MAY 6289 S 153RD ST I -2 TUKWILA, WA 98188 AGMATA STACEY C 6295 S 153RD ST K1 TUKWILA, WA 98188 WISE DANIEL J 306 S 165TH ST BURIEN, WA 98148 • • SEATTLE CITY OF PO BOX 34018 SEATTLE, WA 98124 BP WEST COAST PRODUCTS LLC 6 CENTERPOINTE DR LA PALMA, CA 90623 JOHNS KENNETH III 15330 SUNWOOD BLVD E TUKWILA, WA 98188 STACEY MORGAN 15330 SUNWOOD BLVD E202 TUKWILA, WA 98188 GREWE GLENNA G 15330 SUNWOOD BLVD E301 TUKWILA, WA 98188 ELIZALDE RACHEL R 15330 SUNWOOD BLVD TUKWILA, WA 98188 JONES SYLVIA E 15310 SUNWOOD BLVD F1 -201 TUKWILA, WA 98188 WILBUR WENDY E 15325 SUNWOOD BLVD F1302 TUKWILA, WA 98188 CLARK GARY B 98 FOREST GLEN CT TERRE HAUTE, IN 47802 • • WESTFIELD CORPORATION INC 11601 WILSHIRE BLVD 11TH LOS ANGELES, CA 90025 RASH & ASSOCIATES 47 PO BOX 260888 PLANO, TX 75026 ENMAN JAMES 15330 SUNWOOD BLVD E101 TUKWILA, WA 98188 YANTZ RONALD E 15330 SUNWOOD BLVD E104 TUKWILA, WA 98188 MOFFAT ALYSON 15330 SUNWOOD BLVD E203 TUKWILA, WA 98188 SUPIYA PRASAT 15330 SUNWOOD BLVD E302 TUKWILA, WA 98188 WITSOE GIL & BRENDA 8537 E ROSE LN SCOTTSDALE, AZ 85250 RAINES V SIDNEY 15310 SUNWOOD BLVD F1 -202 TUKWILA, WA 98188 FERRELL PHILIP J PO BOX 65287 PORT LUDLOW, WA 98365 TONG YUK -LING 15350 SUNWOOD BLVD F2 -202 TUKWILA, WA 98188 NORTH HILL APTS INC 85 S WASHINGTON ST 308 SEATTLE, WA 98104 HAWK CHARLES PO BOX 535 EDMONDS, WA 98020 MARTIN FRANCINE D 15330 E SUWOOD BLVD 102 TUKWILA, WA 98188 WADA KYLE R 15330 SUNWOOD BLVD E201 TUKWILA, WA 98188 JACKSON SHAARON 15330 SUNWOOD BLVD E204 TUKWILA, WA 98188 MURCHISON ANDRENE 15325 SUNWOOD BLVD E -303 TUKWILA, WA 98188 FUJIMOTO AKIRA & KATHLEEN M 15310 SUNWOOD BLVD F1 -102 TUKWILA, WA 98188 KARR LAWRENCE N 15310 SUNWOOD BLVD TUKWILA, WA 98188 ROSS MARCIA G 15330 SUNWOOD BLVD F2 -102 TUKWILA, WA 98188 BAKER MICHAEL WILLIAM 15350 SUNWOOD BLVD F2 -301 TUKWILA, WA 98188 BROWN BRENDA 15350 SUNWOOD BLVD F2 -302 TUKWILA, WA 98188 VATRENJAK NEDZAD &Z'ABINA DUGDALE RONALD D 15315 SUNWOOD BLVD A202 TUKWILA, WA 98188 ARCHER LEONA 15315 SUNWOOD BLVD A301 TUKWILA, WA 98188 MUELLER MARIA C 15315 SUNWOOD BLVD A TUKWILA, WA 98188 LANE SEAN 15325 SUNWOOD BLVD B103 TUKWILA, WA 98188 EDWARDS GENE & EDWARDS LISA M 15325 SUNWOOD BLVD B202 TUKWILA, WA 98188 HUYNH VINH C 15325 SUNWOOD BLVD B TUKWILA, WA 98188 NGUYEN CHLOE 15325 SUNWOOD BLVD B304 TUKWILA, WA 98188 GOODS DAVID H 15335 SUNWOOD BLVD C103 TUKWILA, WA 98188 • • HENDERSON DOUGLAS N 8639 11TH AVE SW SEATTLE, WA 98106 BROWN PATRICIA L & THOMAS W 15315 SUNWOOD BLVD A104 TUKWILA, WA 98188 LAVIGNE MILLY 15315 SUNWOOD BLVD A203 TUKWILA, WA 98188 BUTUYAN DONA A 15315 SUNWOOD BLVD A TUKWILA, WA 98188 JO TO H 15325 SUNWOOD BLVD B101 TUKWILA, WA 98188 NICKERSON KRISTINE M 15325 SUNWOOD BLVD B104 TUKWILA, WA 98188 KOBUKI ROY M 15325 SUNWOOD BLVD B203 TUKWILA, WA 98188 MURRAY ORA 15325 SUNWOOD BLVD B302 TUKWILA, WA 98188 O'BOYLE MICHAEL D 15335 SUNWOOD BLVD C101 TUKWILA, WA 98188 RAINVILLE WILLIAM 15335 SUNWOOD BLVD C TUKWILA, WA 98188 SCHNEIDER HOMES INC 6510 SOUTHCENTER BLVD TUKWILA, WA 98188 BANKS LAVADA M 15315 SUNWOOD BLVD A201 TUKWILA, WA 98188 LAYER JEAN E 15315 SUNWOOD BLVD A204 TUKWILA, WA 98188 HOLIWELL DARRION K 15315 SUNWOOD BLVD A303 TUKWILA, WA 98188 MCCRUM CHERYL A 15325 SUNWOOD BLVD B102 TUKWILA, WA 98188 GREER GEYLAR II 15325 SUNWOOD BLVD B201 TUKWILA, WA 98188 BELLER JESSICA L 15325 SUNWOOD BLVD B204 TUKWILA, WA 98188 GREGG KRISTINA M 15325 SUNWOOD BLVD B303 TUKWILA, WA 98188 PALMER JASON D 15335 SUNWOOD BLVD C102 TUKWILA, WA 98188 LARSON RYAN W & SCOTT AMBER E 15335 SUNWOOD BLVD C201 TUKWILA, WA 98188 BLAIR RAEANN 15335 SUNWOOD BLVD C202 TUKWILA, WA 98188 RICHES DAVID L 15335 SUNWOOD BLVD C301 TUKWILA, WA 98188 PARDEY ERIC 15335 SUNWOOD BLVD C304 TUKWILA, WA 98188 CAMPBELL TANIA P 15345 SUNWOOD BLVD D103 TUKWILA, WA 98188 HITCHCOCK MAUREEN H 15345 SUNWOOD BLVD D202 TUKWILA, WA 98188 KIEN HOLLY N 15345 SUNWOOD BLVD D301 TUKWILA, WA 98188 HARRISON MARY E 15345 SUNWOOD BLVD D304 TUKWILA, WA 98188 KATO HISAKO 9316 39TH AVE S SEATTLE, WA 98118 WESTFIELD CORPO ION INC 11601 WILSHI VD 1ITH LOS ANG , CA 90025 STETSON DAVID B 15335 SUNWOOD BLVD C203 TUKWILA, WA 98188 WALKER BRIAN M 15335 SUNWOOD BLVD C302 TUKWILA, WA 98188 BECK JAMES E SR & DAVIS NORINE L 15345 SUNWOOD BLVD TUKWILA, WA 98188 CHI RAYMOND RUI QUING 15345 SUNWOOD BLVD D104 TUKWILA, WA 98188 BICKNELL MARIE 15345 SUNWOOD BLVD D203 TUKWILA, WA 98188 KOROLEV ROMAN 15345 SUNWOOD BLVD D302 TUKWILA, WA 98188 KATO KAZUE & ORIN 15419 62ND AVE S TUKWILA, WA 98188 PACIFIC RIM HOLDINGS L L C 6000 SOUTHCENTER BLVD 70 TUKWILA, WA 98188 PLOWS JENIENE 15335 SUNWOOD BLVD C TUKWILA, WA 98188 VALOV MARIN & TATIANA 15335 SUNWOOD BLVD C303 TUKWILA, WA 98188 JENNINGS GARY D 15345 SUNWOOD BLVD D102 TUKWILA, WA 98188 NOGAKI ANNE M 15345 SUNWOOD BLVD D201 TUKWILA, WA 98188 STRANDBERG KAREN L 15345 SUNWOOD BLVD D204 TUKWILA, WA 98188 DAVIS -IFRIM DEBORAH A 15345 SUNWOOD BLVD D303 TUKWILA, WA 98188 KATO DORIS M 133 S 168TH ST BURIEN, WA 98148 SEATTLE MENTAL HEALTH INST INC 6100 SOUTHCENTER BLVD TUKWILA, WA 98188 Impression antibourrage et a s &chage rapi e Utilisez le gabarit 5160 ALHADEFF MICHAEL D 6305 BEACH DR SW SEATTLE, WA 98136 CITY OF A 6200 SO CENTER BLVD LA, WA 98188 EQUIVA SERVICES LLC PO BOX 4369 HOUSTON, TX 77210 NELSEN JA FROHMUTH LOREN 16113 WV EY HWY TUK A, WA 98188 RODRIGUEZ DAVID 6550 SOUTHCENTER BLVD TUKWILA, WA 98188 SCHNEIDER HOMES INC 6510 SOUTHCENTER BLVD TUKWILA, WA 98188 TUKWILA CIT F 6200 SOU CENTER BLVD TUK A, WA 98188 BUTTACAVOLI GINA 4724 SW 312TH PL FEDERAL WAY, WA 98023 CITY OF TU&LA 6200 SO,JTHCENTER BLVD TUK A, WA 98188 KLOTZ KEVIN G 6532 S 154TH ST TUKWILA, WA 98188 NELSEN JAMES R & LOREN S FROHMUTH 16113 W VALLEY HWY TUKWILA, WA 98188 SCHNEIDER GERALD E 15523 7517 GREENWOOD AVE N SEATTLE, WA 98103 SEATTLE CITY OF PO BOX 34018 SEATTLE, WA 98124 Aa3AV www.averycom 1- 800-GO -AVERY 901 CITY OF TU A 15460 65 AVE S TUKWILA, WA 98188 ROBB WILLIAM E PO BOX 88510 TUKWILA, WA 98138 • • • U AVERY 5160® CITY OF A 6200 SO CENTER BLVD T LA, WA 98188 LOWE'S HIW INC 101 ANDOVER PARK E 200 TUKWILA, WA 98188 SCHNEIDER GERALD E 15523 7517 GREENWOOD AVE N SEATTLE, WA 98103 TAX DEPARTMENT EXTENDED STAY HOTELS 100 DUNBAR ST SPARTANBURG, SC 29306 ®0915 31V1dW31®A+eAV asn Ca rol Lumb - Re: Renton Nickel Wetlan r)ata Sheets From: Carol Lumb To: Joseph Pursley Date: 7/12/06 4:31 PM Subject: Re: Renton Nickel Wetland Data Sheets thanks. Carol ftp: / /ftp.wsdot.wa.gov /incoming /New %20Folder %20(7)/ Cheers, Joe 1-405 Project Team 425 - 456 -8605 21 0 Kt. ' Hi Joe: I find I can't open the pdf file that you sent - can you just copy the data sheets that are from Tukwila and send them to Sandra Whiting, Urban Environmentalist, City of Tukwila DCD, 6300 Southcenter Blvd., Suite 100, Tukwila, WA 98188? FYI - I will be out of the office July 19 -25, back on the 26th. Sandra is currently out of the office, but back on July 25. »> "Joseph Pursley" < joseph .pursley @i405.wsdot.wa.gov> 07/07/06 04:03PM »> Carol, Below is a FTP site you can use to down load the PDF of the Wetland Data Sheets. Please let me know if you have any problems. This e-mail and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are NOT the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be advised that you have received this e -mail in error and that any use, dissemination, forwarding, printing, or copying of this e-mail is strictly prohibited... • • N0 c.. 3( td c c, , �i. :Carol Lumb - Re: Renton Nickel Wetla o ata Sheets From: Carol Lumb To: Joseph Pursley Date: 7/7/06 5:21 PM Subject: Re: Renton Nickel Wetland Data Sheets Thanks Joe - Sandra will be back in the office on July 24, so I'll let her navigate through the data sheets. We'll let you know if there is a problem accessing the data. Any movement on the NEPA/SEPA front? The comment period for the shoreline permit is up on July 21, so if SEPA is complete, then I can move forward on the staff reports for the shoreline permit and special permission director permit. My understanding is that we can't issue the shoreline permit until SEPA has been issued. Thanks. Have a good weekend. Carol ftp: / /ftp.wsdot.wa.gov /incoming /New %20Folder %20(7)/ Cheers, Joe 1-405 Project Team 425 -456 -8605 »> "Joseph Pursley" < joseph .pursley @i405.wsdot.wa.gov> 07/07/06 04:03PM »> Carol, Below is a FTP site you can use to down load the PDF of the Wetland Data Sheets. Please let me know if you have any problems. This e-mail and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are NOT the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be advised that you have received this e -mail in error and that any use, dissemination, forwarding, printing, or copying of this e-mail is strictly prohibited... State of Washington County of King City of Tukwila U1A, • • CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3670 FAX (206) 431 -3665 E -mail: tukplan( /)ci.tukwila.wa.us AFFIDAVIT OF INSTALLATION AND POSTING OF PUBLIC INFORMATION SIGN(S) RE CEIVED JUN 3 0 1006 D MMUNI7 Ei 'oPisiENT (PRINT NAME) understand that Section 18.104.110 of the Tukwila Municipal Code requires me to post t e property no later than fourteen (14) days following the issuance of the Notice of Completeness. I certify that on �e ,2(90e the Public Notice Board(s) in accor ance with Section 18.104.110,nd the other applicable guidelines were posted on the property located at _)14 ,4- -t- l,,4,-is/.se,4 / . so as to be clearly seen from each right -of -way primary vehicular access to the propeity for application file number Lo6-037 I herewith authorize the City of Tukwila or its representative to remove and immediately dispose of the sign at the property owner's expense, if not removed in a timely manner or within fourteen (14) days of a Notice letter. A A %Kg A splicant or ∎ oj'ct Mana :er's Sig On this day personally appeared before me -' 57// 7 L , ' Al I T// to me known to be the individual who executed the foregoing instrument and acknowledged that heishe signed the same as his /iier voluntary act and deed for the uses and purposes mentioned therein. SUBSCRIBED AND SWORN to before me this(8 p day of N • ARY PUBLIC in and for the State of Washington residing at My commission expires on 68 4(1-rei:e CLi ; .4, o■-' ' ::. r .,.. �., • �;� • Carol.Lumb -1 -405 Nickel Fund Improvnts Page 1 From: Sandra Whiting To: Carol Lumb Date: 6/30/06 8:38AM Subject: 1-405 Nickel Fund Improvements Carol, Can we request a copy of Appendix B to Attachment 6, the Wetland Sensitive Area Study? These are the Wetland Data Sheets (delineation forms, functional assessment forms and wetland rating forms). Thanks, Sandra r Carol Lumb - Fwd: 1-405 Nickel Fund I vements From: Carol Lumb To: Joseph Pursley Date: 6/30/06 8:52AM Subject: Fwd: 1-405 Nickel Fund Improvements Hi Joe: I am forwarding a request I've received from our environmental staff person for some additional information that is referenced I think in either the JARPA or one of the other memos that WSDOT provided. Can you please let me know if this info is available, and if so, can you send me a copy? Thanks much. Carol Project: - T -iio5 N•d(cei 1 � 011)C0 s, -tvvr5 Address: y -Lie .0 - )a-Tw 2e-✓\ T _ 5 d.vd S IZ (Co ci Date transmitted: L' - 1 -06 Response requested by: ((-/ - Staff coordinator: :, ',(3.1/ LUM Date response received: 1' LAND USE PE Building Planning TO: • R ECEIVED City of Tukwila JUN 0 7 2006 Department of Community Development TUKWILA PUBLIC WORKS REVIEWERS: Please specify how the attached plans conflict with your ADOPTED development regulations, including citations. Be specific in describing the types of changes you want made to the plans. When referencing codes, please identify the actual requirement and plan change needed. The Planning Division review does not supplant each department's ability to administer its own regulations and permits. However, project consistency at the Planning review stage is important to minimize significant later design changes. More than minimal design changes require further Planning Commission review, even if alteration is required to satisfy a City requirement. This further review is typically a minimum 60 -day process. Requirements based on SEPA (e.g., not required by an adopted development regulation) MUST identify the impact being mitigated, the policy basis for requiring mitigation, and the method used to calculate the mitigation required. Calculations of project impacts and the mitigation required (e.g., water capacity, road level of service analyses, or turning analyses) may be required of the applicant. COMMENTS (Attach additional comment sheets and/or support materials as needed.) f t V 1 ser of (Dtf to Je t 2cJ � t /wov K - d moo, QL3 cAtA -1- 1) Zl c d■L. , PA okt) Plan check date: Comments /' ; Update date: 06, S 1prepared by: h cu--O j File Number Lo 6 03 `RublictClaloik _ Fire Dept. _ , Police Dept. _ Parks /Rec IT ROUTING FORM CI vd. �c1:v.5 ')— Z.. Cft Vc From: Ryan Larson To: Jill Mosqueda Date: 6/15/06 1:56PM Subject: WSDOT 1-405 Jill, I have the following comment on this project: Storm water will be discharged to the old river channel (Nelson Side Channel). This area is designated as a Zone AH with an elevation of 18 on the Flood Insurance Rate Map. This area is a closed depression and the water elevation appears to be tied to the river by groundwater migration. This project will be required to obtain a Tukwila Flood Permit and the flood elevation the City uses for this channel is the flood elevation of the river (approximately 22.8). This increased flood elevation is due to the closed nature of this system and the possibility that the disconnected side channel will be reconnected to the river in the future. - Ryan • • Project: - T -K os - N ir,Kedl T nth Vo 4 Address: y —q !o, ' k•etwe-e \ S - 5 a ti S2 l( Date transmitted: (a - 9 _0 (o Response requested by: (n -Z3 Staff coordinator: «0A/01 LUI-46 Date response received: • • City of Tukwila Department of Community Development File Number Lob- 0 3-7 LAND USE PERMIT ROUTING FORM TO: Building Planning ilPublic Works Fire Dept. Police Dept. _- Parks /Rec REVIEWERS: Please specify how the attached plans conflict with your ADOPTED development regulations, including citations. Be specific in describing the types of changes you want made to the plans. When referencing codes, please identify the actual requirement and plan change needed. The Planning Division review does not supplant each department's ability to administer its own regulations and permits. However, project consistency at the Planning review stage is important to minimize significant later design changes. More than minimal design changes require further Planning Commission review, even if alteration is required to satisfy a City requirement. This further review is typically a minimum 60 -day process. Requirements based on SEPA (e.g., not required by an adopted development regulation) MUST identify the impact being mitigated, the policy basis for requiring mitigation, and the method used to calculate the mitigation required. Calculations of project impacts and the mitigation required (e.g., water capacity, road level of service analyses, or turning analyses) may be required of the applicant. hiv•PC ( Set' 0 F coLo✓ SA- -P/4 GIVGL uJ v,; S — (el y)- L K- "L°G.) 1f l�J W Ct ∎T' to J e t J4) Plan check date: COMMENTS (Attach additional connnent sheets and/or support materials as needed.) Comments prepared by: Update date: From: Carol Lumb To: Joseph Pursley Date: 6/15/06 9:27AM Subject: Re: 1-405 SSDP Sign Let me know if you have any questions. Thanks. Carol • • Joe: For the most part the sign looks good - just a couple items that need to be added. On the top line, under "Type of Action ", please put the file # for the project, i.e. L06 -037, Shoreline Substantial Development Permit. Then also add the following to the "Type of Action" line: L06 -040, Special Permission, Director. As I worked on the Notice of Application I realized we should have had DOT also apply for a Special Permission Director land use decision for the sensitive area ordinance deviations that DOT is requesting. I apologize for any confusion this creates at your end. We will need the application fee, which is $340. The tree cutting permit will be folded into the Special Permission decision, as they are both decisions by the Director. I will add the Special Permission file number to the Notice of Application so there won't be any delay in getting the Notice out for public comment. »> "Joseph Pursley" < joseph .pursley @i405.wsdot.wa.gov> 06/14/06 04:39PM »> Carol, Attached is a proof of the sign we will install for the SSDP. Please take a look at the image and let me know what you think before they print. Cheers, Joe From: Store 280601 E mailto :store.280601(fastsigns.coml Sent: Wednesday, June 14, 2006 4:30 PM To: Joseph Pursley Subject: layout for land use sign # 39620 PLEASE REPLY BACK THAT YOU HAVE RECIEVED THIS E -MAIL FASTSIGNS, Southcenter 16870 Southcenter Pkwy Tukwila, Wa. 98188 (P)206- 575 -2110 (Fax)206- 575 -1806 This e -mail and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are NOT the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be advised that you have received this e -mail in error and that any use, dissemination, forwarding, printing, or copying of this e-mail is strictly prohibited.. NOTICE OF LAND USE ACTION / Ot -w Type of Action: SUBSTANTIAL DEVELOPMENT PERMIT; w& --a'o s •> J Project Name: 1 -405, 1 -5 TO SR 169, RENTON NICKEL IMPROVEMENT PROJECT. Site Address: 1 -405, MILEPOST 0.78 TO 0.83, BRIDGE OVER THE GREEN RIVER Applicant: WASHINGTON STATE DEPARTMENT OF TRANSPORTATION Notice of Application Public Notice TO SUBMIT COMMENTS OR OBTAIN ADDITIONAL INFORMATION PLEASE CONTACT THE PROJECT PLANNER AT (206) 431 -3670 Tukwila Planning Department 6300 Southcenter Blvd. Tukwila, WA 98188 Thanks. Carol Cheers, Joe «Notice Board Location.pdf» • • From: Carol Lumb To: Joseph Pursley Date: 6/13/06 4:01 PM Subject: Re: Notice Board location - SSDP 1-405 Joe: the location on Tukwila Parkway is the best as far as visibility. If anyone want's to look at it in more detail they can park behind the former gas station and come up the sidewalk. I will have the Notice of Application ready for you to pick up on Wednesday. If the sign is going up on Tuesday, let me know so I can adjust the date when comments are due as well as the mailing that goes out. »> "Joseph Pursley" < Joseph .pursley @i405.wsdot.wa.gov> 06/13/06 02:39PM »> Carol, I have attached a PDF file which indicates two placement options (green dots) for the Notice board. Please let me know if one of these options is favored over the other. We received this image from Nora Gierloff on March 3rd. This e-mail and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are NOT the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be advised that you have received this e -mail in error and that any use, dissemination, forwarding, printing, or copying of this e-mail is strictly prohibited.. I \\./ � vi - .: 4' C ' e .r , ,� f ;,) k`' c ' 1: • d v • C.. 4 .-" It z l �� • From: "Joseph Pursley" < Joseph .pursley @i405.wsdot.wa.gov> To: <clumb @ci.tukwila.wa. us> Date: 6/13/06 11:41 AM Subject: City of Tukwila SSDP Notice of land Use Action Carol, Thanks again for your answers to my questions this morning. We are listing the project location from Ordinary High Water Mark (OHWM) to OHWM. 1-405 Milepost 0.78 to 0.83. We will give you three days lead time for printing and laminating the Notice of Application. I will call you when that time arrives. Please contact me if you have any questions or concerns. Cheers, Joe 1-405 Project Team This e-mail and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are NOT the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be advised that you have received this e -mail in error and that any use, dissemination, forwarding, printing, or copying of this e-mail is strictly prohibited.. From: "Joseph Pursley" < joseph .pursley @i405.wsdot.wa.gov> To: "Carol Lumb" <clumb @ci.tukwila.wa.us> Date: 6/13/06 4:35PM Subject: RE: 1-405 SSDP Sign Installation 1 • Carol, We are currently in a holding pattern due to National Marine Fisheries (NMFS) review of ESA species. We cant get a SEPA signoff until NMFS send us a concurrence letter. We worked hard to give them all the needed information, but it has become a waiting game. We will let you know as soon as they can give us a date. Thanks, Joe Original Message From: Carol Lumb [mailto:clumb @ci.tukwila.wa.us] Sent: Tuesday, June 13, 2006 4:27 PM To: Joseph Pursley Subject: Re: 1 -405 SSDP Sign Installation Joe: I meant to ask you about the status of your NEPA/SEPA application with the State. We need to have a copy for the file as well as the SEPA Determination when it is issued. We can't issue the shoreline permit without it (there is a 30 day comment period for the Notice of Application). Thanks. Carol »> "Joseph Pursley" < joseph .pursley @i405.wsdot.wa.gov> 06/13/06 03:27PM >» »> Carol, I would like to inform you that we are planning to install the Land Use Notification Sign on Tuesday or Wednesday of next week. I will coordinate with you, City of Tukwila, to pick up the "Notice of Application" just before the sign is installed. I will then return to the City with a signed and notarized "Affidavit of Installation ". We will make sure to follow all the installation guidelines outlined in Figure 2 of the Shoreline Application document. Please contact me if this time frame is not achievable. Cheers, Joseph R. Pursley 1-405 Project Team This e -mail and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are NOT the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be advised that you have received this e-mail in error and that any use, dissemination, forwarding, printing, or copying of this e-mail is strictly prohibited.. • CC: "Terry Drochak" < terry.drochak @i405.wsdot.wa.gov> 41 City of Tukwila Department of Community Development Steve Lancaster, Director Ms. Allison Ray I -405 Project Environmental Manager 600 — 108 Street NE, Suite 405 Bellevue, WA 98004 NOTICE OF COMPLETE APPLICATION RE: L06 -037: I -405 Nickel Fund Improvements, I -5 to SR 169, Renton Dear Ms. Ray: Your application for a shoreline substantial development permit, sensitive areas buffer reduction and tree cutting permit located along the I -405 corridor between I -5 and West Valley Highway in Tukwila has been found to be complete on June 7, 2006 for the purposes of meeting state mandated time requirements. The next step is for you to install the notice board on the site within 14 days of the date of this letter. You received information on how to prepare and install the sign with your application packet. If you need another set of those instructions, you may obtain them at the Department of Community Development (DCD). Also, you must obtain a laminated copy of the Notice of Application to post on the board. Please call me 3 days prior to installing the notice board to arrange the pick up of the laminated Notice of Application. After installing the sign with the laminated notice, you must return the signed Affidavit of Posting to our office. This determination of complete application does not preclude the City from requesting additional plans or information, if in our estimation such information is necessary to ensure the project meets the substantive requirements of the City or to complete the review process. You noted in your May 23, 2006 letter that you expect SEPA to be issued this month. Please forward a copy of the SEPA determination and supporting documents for our file as soon as possible. If you have any questions, please feel free to call me at 431 -3661. Sincerely, r Carol Lumb Senior Planner cc: Reviewing City Departments CL Page 1 of 1 06/07/2006 9:58 AM Steven M. Mullet, Mayor June 7, 2006 CITY OFFICIALS TUKWILA CITY COUNCIL June 5, 2006 - 7:00 PM Council Chambers — City Hall REGULAR MEETING MINUTES CALL TO ORDER/PLEDGE OF ALLEGIANCE Dennis Robertson, Mayor Pro Tem, called the Regular meeting to order at 7:05 PM and led the audience in the Pledge of Allegiance. MOVED BY GRIFFIN, SECONDED BY DUFFIE TO EXCUSE THE ABSENCE OF COUNCILMEMBER PAMELA LINDER. MOTION CARRIED 6 -0. ROLL CALL Jane Cantu, City Clerk, called the roll of the Council. Present were Dennis Robertson, Council President; Councilmembers Joe Duffie, Joan Hernandez, Pam Carter, Jim Haggerton, and Verna Griffin. Steven M. Mullet, Mayor, and Councilmember Pamela Linder were absent. Rhonda Berry, City Administrator; Shelley Kerslake, City Attorney; Kevin Fuhrer, Finance Director; Steve Lancaster, Community Development Director; Bruce Fletcher, Parks & Recreation Director; Chief Dave Haynes, Police Department; Bob Giberson, Acting Public Works Director; Mary Miotke, IT Manager; Jane Cantu, City Clerk; Barbara Saxton, Administrative Support Coordinator SPECIAL PRESENTATIONS a. Update of the 1-405 Corridor Program (as it relates to Tukwila); Ross Fenton, WSDOT 1-405 Project Team Member Bob Giberson, Acting Public Works Director, introduced Stacy Trussler, 1-405 Project Manager from WSDOT. She has been involved in the development of the 1-405 corridor program congestion relief and bus rapid transit projects since the initial corridor EIS started in 1999. She has presented to Council several times in the past on program development and was here tonight to present information on the current status. Ms Trussler had a Powerpoint presentation, in which she noted that during the 2003 and 2005 legislature, $1.47 billion came forward to 1-405. In the southern half of the corridor that means the entire corridor from 1 -5 in Tukwila up through Bellevue beyond the 1 -90 interchange is funded for construction or for further environmental study and preliminary engineering. There is $486 million currently funded south of 1 -90, and $30 million currently funded to do investments in Tukwila. Springbrook Bank is a project they hope to advertise in August, September or October to develop 130 acres of wetland investments prior to the transportation project construction. Two large regional projects, which are important as they relate to Tukwila, are the Alaska Way viaduct and 520 bridge replacement. These will both have large impacts to the traveling public while under construction. Most of the smaller regional projects have been planned so they will be finished prior to the Highway 99/Viaduct project (in 2011), as a large amount of traffic will need to be diverted throughout the area during that construction. Two major projects planned in Tukwila (the Klickitat project and Westfield Mall expansion) will need to be coordinated with other WSDOT projects in order to ease congestion concerns and lessen impact on local traffic. A meeting with City staff will probably occur within the next month. • • The 1-405 project was formerly known as the Renton Nickel. The 2003 legislature brought forward $136 million for this project, and in 2005 more money was brought and it is now formally known as the 1 -5 to SR 169 W;dening project (Phase 1). Phase 1 is a fully funded construction project, and will go to ad next February. The scope of work is to start in Tukwila at the 1 -5 interchange and add one lane of capacity from 1 -5 up through the Maple Valley Highway (SR 169) in both directions, and work southbound on SR 167 to the 180 interchange. This vicinity of 1-405 in Tukwila is a high accident corridor, and it is hoped congestion relief in this location will help reduce accidents. Environmental work was started in January 2005, and will conclude with a Finding of No Significant Impact (FONSI) in September 2006. They are on schedule to advertise for proposals in February 2007, with construction complete in June 2010. Prior to February 2007 (and hopefully by October 2006 to stay on schedule), they would like a Memorandum of Agreement with the City addressing all the terms and conditions of the design /build contract. The agreement would address items such as communication issues, noise concerns, traffic management — especially during the holiday season, access for emergency response, and utilities issues. The Phase 2 investment is mostly unfunded. Phase 2 is a full rebuild of the I- 405 /SR 167 interchange, which is one of the top two congested interchanges in the state. WSDOT has funds for the environmental study, which was started last month (May 2006). Only one piece of this project is funded (at SR 515 aka old Benson Hwy. or Talbot Road). The current I- 405 /SR 167 interchange is a cloverleaf, including local access and system access, which is very congested and dangerous. The plan is to separate local access (in and out of the valley) and system -to- system access. The environmental document will be studied for 18 months (through November 2007). The funded piece will be advertised in May 2008, with completion in June 2011. Several Councilmembers commented that the project had been in the works for a long time and was badly needed and expressed appreciation for WSDOT's efforts in coordinating and minimizing the impacts for Tukwila. Councilmember Haggerton questioned one chart showing construction impacts with regard to the Klickitat project in 2007. His understanding was that the project would impact the City in 2008 and asked if it was now expected to have an impact for two years in a row. Bob Giberson, Acting Public Works Director, explained the City is in the grant funding process right now. The results of that process will lock in the construction schedule. If the funding is not successful, it might push the project into 2008. We will also see a special benefits study for a local improvement district soon. That will also help lock in the funding. Either way, there will be only one construction season, so there will be minimal impact on DOT projects and the Westfield construction. Ms. Trussler clarified that the ultimate plan for 1-405 is to add two lanes in each direction. In the south end they are studying a step -down from the original plan. From the SR 167 interchange to the north, it is the full rebuild (2 lanes each direction). From SR 167 towards Tukwila, it is rebuilding the interchange, but the HOV direct connect ramps have been pushed off to sometime in the future. b. Introduction of New Employees Mayor Pro Tem Robertson announced there was a change to item 2.b of the agenda as Diane Jenkins, Council Administrative Assistant, was not present for introductions. Scott Droubay, IT Specialist: Mary Miotke, IT Manager, introduced Scott, who started with the City in October 2005 as the Police Department's IT technician. This involves work with law enforcement technology both internally and in the vehicles. Scott has numerous certificates and degrees in Novell and Microsoft and experience working for large corporations. Tami Eberle- Harris, IT Database Administrator. Mary also introduced Tami, who has worked in database management for the past 10 years. She has already made a big impact with the City, having worked with the tourism office, the community center and the permit center to date. Barbara Saxton, Administrative Support Coordinator (promotion), City Clerk's Office. Jane Cantu, City Clerk, announced Barbara's promotion, which was made after Christy O'Flaherty moved to the • • Deputy City Clerk position at the first of the year. Barbara has been with the City for the past 8 years, previously at the front desk in the City Clerk's Office. Dana Almberg, Administrative Support Technician, City Clerk's Office. Jane also introduced Dana, who previously worked for the Port of Seattle for 5 years. Dana has been very busy learning the responsibilities of the front desk during the past two weeks. CITIZEN COMMENTS Joanne McManus, 5610 S. 133 St., asked if the City still has an animal control officer coming around. There is a dog in her neighborhood that runs wild most of the time. Rhonda Berry, City Administrator, stated that we still have a continuing contract with King County for animal control, but noted they have been short staffed. They have been providing periodic control and do respond on a complaint basis. She also noted that a loose dog would be considered a priority. The City will get contact information for King County Animal Control to Mrs. McManus so that she may contact them easily when needed. CONSENT AGENDA a. Approval of Minutes: 5/15/06 (Regular); 5/22/06 (Special) b. Approval of Vouchers #323925 - 324152 in the amount of $1,091,046.52 c. Accept as complete the 2005 Overlay and Repair Program Project with Western Asphalt, Inc.; authorize release of retainage subject to the standard claim and lien release procedures. (Final cost of project: $550,584.36.) d. Accept turnover of storm drainage system, constructed within street right -of -way and a public easement; street infrastructure including street lighting, constructed within public right -of -way, all as part of the development known as the Fosterview Estates Development located between 42 Ave. S. and 44 Ave. S., and within S. 137 Street, S. 137 Place, and 43 Place S. (Value of transferred assets from the developer to the City of Tukwila is $1,490,943.00.) e. Authorize the Mayor to sign an interlocal agreement with valley cities for cooperation in acceptance and use of Department of Justice /Cops More grant funds in the amount of $98,723.00 for a regional wi -fi network feasibility study. MOVED BY DUFFIE, SECONDED BY HERNANDEZ TO APPROVE THE CONSENT AGENDA AS SUBMITTED. MOTION CARRIED 6 -0 (LINDER ABSENT). PUBLIC HEARING An ordinance amending various sections of TMC Title 17, Subdivisions and Plats. Steve Lancaster, Community Development Director, stated the ordinance would amend the City's Subdivision Code. There are two basic issues. First, it would clarify City policy regarding the completion of infrastructure improvements prior to final short plat or subdivision approval. The second set of changes is intended to fully implement an earlier decision by the City Council to delegate authority for hearing preliminary plats on subdivisions to the Planning Commission. Those policy changes have already been made in the Zoning Code, but also need to be reflected in the Subdivision Code. Mayor Pro Tem Dennis Robertson opened the public hearing at 7:46 PM and called for citizen comment. None was received. Mayor Pro Tem Dennis Robertson referenced a letter he had received from Garrett Huffman, South King County Manager for the Master Builders Association. It stated that while Tukwila is not known for residential development, there are opportunities here. They feel the proposed changes will make Tukwila less attractive to home builders and developers and raise the cost of any project in the City. They pointed • • out that homebuilders and developers do not absorb the costs —the consumer does. They suggested the city focus on how they can work together with the home building industry to keep costs low and recommended the City review what other cities do to provide affordable housing. Several Councilmembers expressed their understanding that this ordinance is not really a change but just clarifies the regulations to remove some confusion that now exists. Mr. Lancaster stated that he does not feel it increases the cost of development, but that it does affect the timing of when those costs might be incurred. In terms of the carrying costs of a project, that could marginally increase costs, but essentially the same improvements have to be done; it's just a matter of timing. This has been our practice in terms of how we have carried out infrastructure improvements for short plats and subdivisions. He further clarified that an alternative would be to allow bonding of significant improvements to a subdivision. Our practice has been to require that the infrastructure be built and to bond only those minor, final improvements that may not be practical to install before the homes are built. Councilmember Carter asked if most other cities allowed bonding or whether it was common practice to put in roads before building homes. Mr. Lancaster replied that most of the cities he is familiar with require the majority of the public infrastructure (roads, etc.) to be put in place prior to filing final plat for record and allowing sale of individual lots. Jim Haggerton asked if a representative from the Master Builders Association had attended any of the Planning Commission meetings. Mr. Lancaster was not aware of one, but was not personally in attendance. He was aware that a building industry representative was at a Community Affairs & Parks Committee meeting where this issue was first discussed. That individual had been in touch with the Master Builders Association and seemed agreeable. Mayor Pro Tem Dennis Robertson closed the public hearing at 7:54 PM. UNFINISHED BUSINESS a. An ordinance amending various sections of TMC Title 17, Subdivisions and Plats. AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF TUKWILA, WASHINGTON, AMENDING VARIOUS SECTIONS OF TMC TITLE 17, "SUBDIVISIONS AND PLATS," TO CLARIFY ACCEPTANCE OF INFRASTRUCTURE BONDS, AND CHANGE PRELIMINARY PLATS FROM A TYPE 5 TO A TYPE 4 LAND USE DECISION; PROVIDING FOR SEVERABILITY; AND ESTABLISHING AN EFFECTIVE DATE. MOVED BY HERNANDEZ, SECONDED BY DUFFIE THAT THE PROPOSED ORDINANCE BE READ BY TITLE ONLY. MOTION CARRIED 6 -0 (LINDER ABSENT). City Attorney Shelley Kerslake read the proposed ordinance by title only. MOVED BY HERNANDEZ, SECONDED BY DUFFIE THAT THE PROPOSED ORDINANCE BE ADOPTED AS READ. MOTION CARRIED 6 -0 (LINDER ABSENT) TO APPROVE ORDINANCE NO. 2124. b. Authorize the Mayor to sign an interlocal agreement with the City of Seattle for hearing examiner services. MOVED BY HERNANDEZ, SECONDED BY DUFFIE TO AUTHORIZE THE MAYOR TO SIGN AN INTERLOCAL AGREEMENT WITH THE CITY OF SEATTLE FOR HEARING EXAMINER SERVICES. MOTION CARRIED 6 -0 (LINDER ABSENT). c. Authorize the Mayor to sign a contract with Securitas Security for court security not to exceed $45,000.00. Councilmember Carter noted the Court staff was pleased with the security services provided, and that this contract is identical to the previous contract with the exception of a small cost -of- living increase. MOVED BY CARTER, SECONDED BY HAGGERTON TO AUTHORIZE THE MAYOR TO SIGN A CONTRACT WITH SECURITAS SECURITY FOR COURT SECURITY NOT TO EXCEED $45,000.00. MOTION CARRIED 6 -0 (LINDER ABSENT). d. Authorize the Mayor to sign an agreement with Mirai Transportation Planning & Engineering for concurrency modeling in the amount of $38,364.00. MOVED BY DUFFIE, SECONDED BY CARTER TO AUTHORIZE THE MAYOR TO SIGN AN AGREEMENT WITH MIRAI TRANSPORTATION PLANNING & ENGINEERING FOR CONCURRENCY MODELING IN THE AMOUNT OF $38,364.00. MOTION CARRIED 6 -0 (LINDER ABSENT). e. Motion to approve Volunteer Coordinator position. Councilmember Carter noted that this position had been budgeted at .5 FTE, and this proposal would increase that to .75. MOVED BY CARTER TO AUTHORIZE INCREASE IN THIS POSITION OF .25 FTE SO THE VOLUNTEER COORDINATOR POSITION WOULD BE .75. SECONDED BY GRIFFIN. MOTION CARRIED 6 -0 (LINDER ABSENT). NEW BUSINESS None. REPORTS a. Mayor. No report. b. City Council • • Joe Duffie reported that he had to call the Police again this week due to the illegal parking all over 53rd Ave. S. and on the grass at Foster Park during ball games. He said the situation is so bad that emergency vehicles would not be able to get through, and in many cases the cars have blocked access to residents' homes. Bruce Fletcher, Parks & Recreation Director, reported that he met on site with Mr. Duffle and Paul Surek, Parks Superintendent. They have sent e-mails to the Police Department and the softball organization notifying them that tickets will be given out for illegal parking. They also plan to have staff there this Sunday, which will be the last game for this season. He suggested the City negotiate this problem next season if it is determined the City wants to rent to them again. Mr. Duffle also reported attendance at a presentation of the "Grow with Prayer" event at the stadium that was sponsored by local churches on Saturday and Sunday (June 3 and 4). A citizen also reported to him that there are still coyotes in their neighborhood (around Foster Park). Joan Hernandez attended the National Police Officers Memorial Day Ceremony on May 16 at City Hall, and the Farmer's Market opening on May 17. She just returned from a vacation in Germany. Pam Carter attended the Puget Sound Regional Council (PSRC) meeting regarding Vision 2020 on May 23. The draft EIS was to be released but is not out yet. She does have part of the Executive Summary, to which Suburban Cities is working on a response. She has also talked to Steve Lancaster about how the City wants to weigh in on this plan regarding housing growth. Ms. Carter also attended the transportation technology conference sponsored by the Discovery Institute at Microsoft on June 1. Jim Haggerton reported the application period closed on May 26 for the position of Finance Director of Cascade Water Alliance. This was the second time around, with the position criteria having been changed slightly from the first time, resulting in 35 applications. He also attended a finance meeting for Cascade Water Alliance on June 1. They are starting a new policy of having a revised budget at each monthly board meeting, including an operating statement and balance sheet, to better keep their members informed. Mr. Haggerton also attended the Alliance for Community Media Northwest Region conference hosted by Puget Sound Access in Kent on June 2, which included a panel discussion on • • telecommunications issues. He was pleased to note that the group was hosted at ACME Bowling in Tukwila for lunch on Saturday, June 3. Verna Griffin was in Washington DC beginning May 21st attending her first National League of Cities Family Institute meeting focusing on strengthening families and outreach to youth. She also attended the "Afterschool for All Challenge," featuring ideas for "out of school" programs to make cities more attractive for families and youth. The overriding theme she heard was of cities being able to get corporate sponsors and corporate support for their programs. A representative from America's Promise (Colin Powell's initiative) also spoke; they have a partnership with NLC. Ms. Griffin also attended the presentation at the Museum of Flight on Memorial Day (May 29), where she found the program with the Tuskegee Airmen very moving and inspirational. Dennis Robertson attended the entrance conference for the state audit on May 31. We have a new auditor from the state this year, David Howitz. The subject of performance audits was discussed, and the City was advised that it would probably be two years before they get to local audits. Those will follow "yellow book" standards. Mr. Robertson also reminded everyone of a Sound Transit noise variance meeting tomorrow (April 6) at 6:30 PM. Shelley Kerslake, City Attorney, clarified that Council will not be asked to make a decision on this issue so Councilmembers are free to attend the meeting and make comments if they live in an affected area. c. Staff Rhonda Berry, City Administrator, noted that the City had its Washington Cities Insurance Authority audit the week prior to the audit entrance conference with the state auditor. The focus of the WCIA audit was recreation and special events. They had quite an extensive questionnaire for the City to complete. The outcome showed that we are in great shape and have several unique partnerships (such as with Fort Dent) that WCIA does not see at other cities. Ms. Berry also noted that the flower baskets are back up for the summer. She reported that during the 2007 budget process administration will try something a little different than in previous years. Rather than presenting Council with a draft budget and then looking at what Council wants, they are requesting initiatives from the Council first. Ms. Berry asked Kevin Fuhrer, Finance Director, to address the matter further. Mr. Fuhrer stated they are working out a schedule to be distributed shortly. The Mayor would like to solicit ideas over the next 2 to 3 weeks. There are several items that will likely have a financial impact on the 2007 budget, including the Southcenter Mall remodel, settling of personnel contracts, and a possible increase in pension contribution rates. Mayor Pro Tem Dennis Robertson requested that initiatives suggested by individual Councilmembers be compiled into a single list and distributed to Council before the budget analysis begins. Ms. Berry suggested that each Councilmember turn in a list of suggestions by June 15. One master list will then be compiled and distributed back to Council. Staff will then research and estimate costs to implement each item. She also clarified that items for which direction has already been given by Council —such as the CERT program —would not need to be included on these new lists. Ms. Berry reported that Jim Morrow is in Maine, where his mother is ill. Bob Giberson and Frank Iriarte are handling duties in his absence. She also reported she will be on vacation starting Wednesday, June 7, returning June 28. Kevin Fuhrer will be serving as Acting City Administrator in her absence. d. City Attorney The City Attorney had no report. e. Intergovenmental No report. MISCELLANEOUS Verna Griffin asked if the Comcast e-mail problem had been resolved. Jim Haggerton responded that it was his understanding the problem was temporary and was corrected by that same night. ADJOURNMENT Dennis Robertson, Mayor Pro Tem Barbara Saxton, Recording Clerk • • 8:37 PM. MOVED BY DUFFIE, SECONDED BY CARTER THAT THE TUKWILA CITY COUNCIL MEETING BE ADJOURNED. MOTION CARRIED 6 -0. • • From: Carol Lumb To: Internet :terry.drochak @l405.wsdot.wa.gov Date: 3/2/06 12:45PM Subject: Nickle Fund Improvements Hi Terry: I wanted to get back to you on the citation to use in the Special Permission Director application for using the off - channel wetland to discharge storm water to - please use TMC 18.45.070 B.3., New surface water discharges to sensitive areas or their buffers...." This is permitted subject to Director approval. I checked with Ryan Larson, the City's Surface Water Engineer in Public Works on the use of the wetland. He has not been contacted by anyone from WSDOT on discharging to the off - channel wetland, so maybe you could pass his name and phone # along to the appropriate person(s) working the storm water angle. His telephone # is 206 -433 -0179 or they can e-mail him at rlarson(c�ci.tukwila.wa.us. Nora is still waiting to hear back from Parks on locating the public notice board. She will be in touch as soon as she has information for you. Let me know if you have any other questions. Carol CC: Nora Gierloff; Ryan Larson L- Mails Mt, v✓ fib E i ► i1. (FOR: FROM: . 04 DATE: 3/ 3 L( 0 6 ❑ AM OF: TIME: U', 15 r MESSAGE: �„ v ,tivV:a Vito G%4C. 1>u; uZia PHONE ( ) 4 j d,�, FAX ( ) 1 (,,,,g.„/ I Y ° c ,a+ Es..�u ❑ Phoned you ❑ Please ❑ Wiit.call again ❑ Returned your call ❑ Come to see you l ants to you 1 URGENT' FOR: t1 7 .O ;,." DATE: ❑ AM OF: D d,•y TIME: ❑ PM MESSAGE: vo) =4 - 4_ -4t . S )1) PHONE ( ) O p`' ,r �uE• Lz1 FAX ( ) - BY: FROM: ❑ Phoned you Please c ❑ Will call gain U. Returned your call ❑ Carne to es you ❑ Wants to s ee ynu ❑ URGENT MESSAGE FOR: FROM: li-ca mat, n41j 4& DATE: OF: pv"N'+'c.'�c TIME: MESSAGE: PHONE ( ) - EXT: FAX ( ) - BY: ❑ AM ❑ PM ❑ Phoned ❑ Please ❑ Witco] again ❑ Returned your call ❑ Came to see you to see you • URGENT • • From: "Adam Merrill" <amerrill @adolfson.com> To: "Carol Lumb" <ci'umb @ci.tukwila.wa.us> Date: 4/3/06 9:57AM Subject: RE: Parcel 2423046666 - Green River mitigation site? Carol - That is some very helpful information, thanks for your efforts! Adam Original Message From: Carol Lumb [mailto:clumb @ci.tukwila.wa.us] Sent: Friday, March 31, 2006 4:52 PM To: Adam Merrill Subject: RE: Parcel 2423046666 - Green River mitigation site? Hi Adam: I just talked with Gary Schulz who used to be the Urban Environmentalist here in Tukwila. He said that the site you are interested in was not mitigation for wetland impacts - his recollection is that it is an enhanced storm water pond and was created as part of the work done on the HOV lanes on 1-405. Gary couldn't remember if there are 2 cells or 1 for the storm water pond and also wasn't sure if there was a maintenance road to provide access to the pond. Hope this helps. I will not be in on Monday, but am in the rest of the week if you have other questions. Have a great weekend. Carol »> "Adam Merrill" <amerrill @adolfson.com> 03/30/06 10:14AM »> Hi Carol, Thanks again for looking into this. That's the right parcel, and in particular we're interested in the piece of land between Interurban Avenue and the 1-405 off -ramp. We're currently in the process of getting information from WSDOT on this, but we haven't heard back yet. To give you more information, we conducted a field visit to this parcel and observed saturated soil and planted wetland shrubs. We did not observe hydric soil, so the Corps of Engineers determined that the area was not jurisdictional wetland. Based on our site visit, it appeared that the area might be a wetland mitigation site, and that hydric soil indicators hadn't formed yet. But, were not totally sure. Any information you may have on this would be very helpful. Thanks again, Adam Original Message From: Carol Lumb [mailto:clumb @ci.tukwila.wa.us] Sent: Thursday, March 30, 2006 9:15 AM To: Adam Merrill Subject: Re: Parcel 2423046666 - Green River mitigation site? Hi Adam: I am attaching an aerial photo of the site I think you are talking about - I want to make sure I have the right one before I do any more investigating. So far, no one I've talked to here knows anything about wetland mitigation on the site below. Does WSDOT have any information about the site? 1 • Anyway, please let me know if I have the right site. Carol »> "Adam Merrill" <amerrill @adolfson.com> 03/29/06 11:02AM »> Hi Carol, I am working for WSDOT with Terry Drochak and Brad Thiele on the 1-405 Project in Renton and Tukwila. Brad thought that you may be able to help me with a question regarding a wetland in Renton or be able to forward me on to someone at the City that might be able to assist me. I would appreciate your help greatly. Last year we conducted wetland delineations that identified a wetland on parcel # 2423046666 in the City of Tukwila. It is located immediately east of Interurban Ave South and south of the Green River. Based on the plants and existing flagging, it appeared that this area may have been a wetland mitigation site at one time. However, it may also be an area where wetlands have been planted with trees and shrubs as part of WSDOT's corridor vegetation management program and /or to provide future screening for the roadway and were not intended as wetland mitigation. The jurisdictional determination of this wetland by the Army Corps of Engineers is dependent on whether or not this was constructed as a mitigation site. Is there any way you could confirm this or forward my email on to someone else that might be able to help me? Thanks so much for your assistance. Adam Adam Merrill Project Scientist Adolfson Associates, Inc. < ?xml:namespace prefix = o ns = " urn: schemas - microsoft- com:office:office" /> 5309 Shilshole Ave. NW, Ste. 200 Seattle, Washington 98107 P 206 - 789 -9658 1F 206 - 789 -9684 email @adolfson.com www.adolfson.com <http: / /www.adolfson.com /> <http: / /www.adolfson.com /> • • A Scale: 1" 1138 ' i • 1 Page 1 of 1 N CityGIS5 Copyrigli tigi 2004, All Its Reserved The information ccntained herein is the proprietary property d the contributors supplied under license and may not be reproduced except as licensed by I:idtal Map Products Parcel Map and Data 0 i t1 242 f - � ii o i=a1 i 3 Lirj A a1 tn, q).265-14119.0c4111 { t Ai y pp: ��� i < f u Ss Parcel Number 2423046666 Address Zipcode Taxpayer The information incuded on this map has been compiled by King County staff from a variety of sources and is subject to change without notice. King County makes no representations or warranties. express or implied, as to accuracy, completeness, timeliness, or rights to the use of such information. King County shall not be liable for any general, special, indirect, incidental, or consequential damages including, but not limited to, lost revenues or lost profits resulting from the use or misuse of the information contained on this map. Any sale of this map or information on this map is prohibited except by written permission of King County." King County Horne rr.& a 'r i'News, Servicest 1 _Comments:; King County 1 GIS Center I News 1 Services 1 Comments 1 Search By visiting this and other King County web pages, you expressly agree to be bound by terns and conditions of the site. The details. ySearch • f Scale: 1" = 200 ' N CityGIS5 Copyright ® 2004. All Rigits Reserved The information contained herein is the proprietary property d the cantributcrs supplied u license and may not be reproduced except as licensed by agtal Map Products From: Ryan Larson To: Carol Lumb Date: 3/1/06 8:10AM Subject: Re: 1-405 Nickle Fund Project Carol, You are the first to contact me regarding this issue. I do know the pond has two discharges from the Fairfield Inn (Name ?) and the Northbound on -ramp to NB 1 -405. I am not apposed to an additional discharge to this pond following detention and Water Quality treatment. I am not sure if the Department of Fish and Wildlife regulate this area since it is a former river channel and appears to be mapped by the King County Assessor as part of the Green River. Also, need to ensure that WSDOT owns or has easement for any new drainage discharge. - Ryan »> Carol Lumb 02/28/06 09:42AM »> Hi Ryan: Nora & I met yesterday with Terry Drochak and Brad Thiele who are working on the environmental mitigation for Nickle Fund 1-405 improvements. Others on the team have been working on storm water aspects of the project, and it looks like there is going to be a storm water detention pond near the Neilson side channel wetland which will then discharge into the wetland. Have you been in contact with their storm water folks? If so, can we talk briefly about the discharge to the wetland? I'm thinking it is a permitted use subject to Director's approval under TMC 18.45.070 B.3. but want to talk to you before I get back to the 1-405 folks. Thanks. Carol • • Imagery Copyrightt 2006 4 Scale: 1" = 200 ' N CityGIS5 Copyright ® 2004. All Rlgits Reserved The information contained herein is the proprietary property d the contri butors supplied under license and may rot be reproduced except as licensed by Oigtal Map Products APN OWNER NAME 000320 -0007 NELSEN JAMES R & LOREN 000320 -0010 SCHNEIDER GERALD E 155: 000320 -0010 SCHNEIDER GERALD E 155: 000320 -0013 BUTTACAVOLI GINA 000320 -0014 SCHNEIDER HOMES INC 000320 -0015 KLOTZ KEVIN G 000320 -0017 STATE OF WASHINGTON 000320 -0018 ROBB WILLIAM E 000320 -0019 RODRIGUEZ DAVID 000320 -0021 SEATTLE CITY OF 000320 -0022 CITY OF TUKWILA 000320 -0023 CITY OF TUKWILA 000320 -0025 CITY OF TUKWILA 000580 -0002 NELSEN JAMES FROHMUTF 000580 -0010 TUKWILA CITY OF 000580 -0015 TAX DEPARTMENT EXTENC 022300 -0030 LOWE'S HIW INC 022300 -0040 EQUIVA SERVICES LLC 232304 -6666 232304 -6666 232304 -6666 232304 -6666 242304 -6666 242304 -6666 242304 -6666 242304 -6666 359700 -0500 CITY OF TUKWILA 359700 -0520 ALHADEFF MICHAEL D 359700 -6666 359700 -6666 OWNER ADDRESS 16113 W VALLEY HWY 7517 GREENWOOD AVE N 7517 GREENWOOD AVE N 4724 SW 312TH PL 6510 SOUTHCENTER BLVD 6532 S 154TH ST PO BOX 88510 6550 SOUTHCENTER BLVD PO BOX 34018 6200 SOUTHCENTER BLVD 6200 SOUTHCENTER BLVD 6200 SOUTHCENTER BLVD 16113 W VALLEY HWY 6200 SOUTHCENTER BLVD 100 DUNBAR ST 101 ANDOVER PARK E 200 PO BOX 4369 15460 65TH AVE S 6305 BEACH DR SW OWNER CITY TUKWILA SEATTLE SEATTLE FEDERAL WAY TUKWILA TUKWILA TUKWILA TUKWILA SEATTLE TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA SPARTANBURG TUKWILA HOUSTON TUKWILA SEATTLE OWNER S OWNER Z WA 98188 WA WA WA WA WA WA WA WA WA WA WA WA WA SC WA TX WA WA 98103 98103 98023 98188 98188 98138 98188 98124 98188 98188 98188 98188 98188 29306 98188 77210 98188 98136 PROP ADDRESS 6510 SOUTHCENTER BLVD 6510 SOUTHCENTER BLVD 15460 65TH AVE S 6532 S 154TH ST 6542 S 154TH ST 6550 SOUTHCENTER BLVD 15635 W VALLEY HWY 401 TUKWILA PKWY 501 TUKWILA PKWY PROP CITY PROP STA PROP ZIP ID WA 1.53E +15 TUKWILA WA 98188 1.53E +15 TUKWILA WA 98188 1.53E +15 TUKWILA WA 98188 1.53E +15 WA 1.53E +15 TUKWILA WA 98188 1.53E +15 WA 1.53E +15 TUKWILA WA 98188 1.53E +15 TUKWILA WA 98188 1.53E +15 WA 1.53E +15 WA 1.53E +15 WA 1.53E +15 WA 1.53E +15 WA 1.53E +15 WA 1.53E +15 TUKWILA WA 98188 1.53E +15 WA 98188 1.53E +15 TUKWILA WA 98188 1.53E +15 WA 1.53E +15 WA 1.53E +15 WA 1.53E +15 WA 1.53E +15 WA 1.53E +15 WA 1.53E +15 WA 1.53E +15 WA 1.53E +15 WA 1.53E +15 WA 1.53E +15 WA 1.53E +15 WA 1.53E +15 • • Imagery Copyright© 2008 Scale: 1" = 945 ' N CityGIS5 Copyright ® 2004. All Rights Reserved The information contained herein is the proprietary property d the contributors supplied under license and may not be reproduced except as licensed by Digital Map Products imagery Copyright© 2000 i t Scale: 1" = 807 ' N CityGIS5 Copyright ® 2004, All Rgits Reserved The information contained herein i s the proprietary property cf the ccntrilxutcrs supplied under license and may not be reproduced except as licensed by Digtal Map Products APN Owner Name f 1 0p W9SPAhr TRIAN%JE V ®� m3006 C, f 1OUSING 3 000320 -0005 CITY OF TUKWILA 4 000320 0011 SOUTHCENTER 6450 BUILDING LLC 5 000320 -0021 SEATTLE CITY OF 6 022300 -0010 BETA HOLDINGS LTD 7 177050.0000 8 177050-0010 BARTH RALPH DARWIN 9 177050 -0020 E DECARO RAYMOND 15344 62ND AVE S 2 10 177050.0030 CHAN YIPING 11 177050-0040 FROID LORRI L 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 r NO DESCRIPTION 12 177050 0050 JACKSON OSCAR CAMPBELL 13 177050 -0060 FREDERICK T & MESHIA 177050.0070 FALUDI JACQUELYN 177050 -0080 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WILLIAM LARSON RYAN W & SCOTT AMBER E BLAIR RAEANN STETSON DAVID B PLOWS JENIENE ENMAN JAMES MARTIN FRANCINE D JOHNS KENNETH III YANTZ RONALD E WADA KYLE R STACEY MORGAN MOFFAT ALYSON JACKSON SHAARON GREWE GLENNA G SUPIYA PRASAT WESTFIELD CORPORATION INC PACIFIC RIM HOLDINGS L L C KATO KAZUE & ORIN KATO HISAKO SEATTLE MENTAL HEALTH INST INC HAWK CHARLES NORTH HILL APTS INC KATO DORIS M RASH & ASSOCIATES 47 BP WEST COAST PRODUCTS LLC RICHES DAVID L WALKER BRIAN M 15325 SUNWOOD BLVD B203 15325 SUNWOOD BLVD B204 15325 SUNWOOD BLVD B 15325 SUNWOOD BLVD B302 15325 SUNWOOD BLVD B303 15325 SUNWOOD BLVD B304 15335 SUNWOOD BLVD C101 15335 SUNWOOD BLVD C102 15335 SUNWOOD BLVD C103 15335 SUNWOOD BLVD C 15335 SUNWOOD BLVD C201 15335 SUNWOOD BLVD C202 15335 SUNWOOD BLVD C203 15335 SUNWOOD BLVD C 15330 SUNWOOD BLVD E101 15330 E SUWOOD BLVD 102 15330 SUNWOOD BLVD E 15330 SUNWOOD BLVD E104 15330 SUNWOOD BLVD E201 15330 SUNWOOD BLVD E202 15330 SUNWOOD BLVD E203 15330 SUNWOOD BLVD E204 15330 SUNWOOD 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15325 SUNWOOD BLVD 304 15325 SUNWOOD BLVD 101 15325 SUNWOOD BLVD 102 15325 SUNWOOD BLVD 103 15325 SUNWOOD BLVD 104 15325 SUNWOOD BLVD 201 15325 SUNWOOD BLVD 202 15325 SUNWOOD BLVD 203 15325 SUNWOOD BLVD 204 15325 SUNWOOD BLVD 15325 SUNWOOD BLVD 101 15325 SUNWOOD BLVD 102 15325 SUNWOOD BLVD 103 15325 SUNWOOD BLVD 104 15325 SUNWOOD BLVD 201 15325 SUNWOOD BLVD 202 15325 SUNWOOD BLVD 203 15325 SUNWOOD BLVD 204 15325 SUNWOOD BLVD 301 15325 SUNWOOD BLVD 302 6000 SOUTHCENTER BLVD 70 TUKWILA 15419 62ND AVE S TUKWILA 6100 SOUTHCENTER BLVD 5711 S 152ND PL 5820 SOUTHCENTER BLVD 5820 SOUTHCENTER BLVD 5700 SOUTHCENTER BLVD 5800 SOUTHCENTER BLVD 15325 SUNWOOD BLVD 301 15325 SUNWOOD BLVD 302 TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA • • 186520 -0590 186520 -0600 186520 -0610 186520 -0620 186520 -0630 186520 -0640 186520 -0650 186520 -0660 186520 -0670 186520 -0680 186520 -0690 186520 -0700 VALOV MARIN & TATIANA PARDEY ERIC BECK JAMES E SR & DAVIS NORINE L JENNINGS GARY D CAMPBELL TANIA P CHI RAYMOND RUI QUING NOGAKI ANNE M HITCHCOCK MAUREEN H BICKNELL MARIE STRANDBERG KAREN L KIEN HOLLY N KOROLEV ROMAN 15335 SUNWOOD BLVD C303 15335 SUNWOOD BLVD C304 15345 SUNWOOD BLVD 15345 SUNWOOD BLVD D102 15345 SUNWOOD BLVD D103 15345 SUNWOOD BLVD D104 15345 SUNWOOD BLVD D201 15345 SUNWOOD BLVD D202 15345 SUNWOOD BLVD D203 15345 SUNWOOD BLVD D204 15345 SUNWOOD BLVD D301 15345 SUNWOOD BLVD D302 TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA WA WA WA WA WA WA WA WA WA WA WA WA 98188 15325 SUNWOOD BLVD 303 98188 15325 SUNWOOD BLVD 304 98188 15325 SUNWOOD BLVD 101 98188 15325 SUNWOOD BLVD 102 98188 15325 SUNWOOD BLVD 103 98188 15325 SUNWOOD BLVD 104 98188 15325 SUNWOOD BLVD 201 98188 15325 SUNWOOD BLVD 202 98188 15325 SUNWOOD BLVD 203 98188 15325 SUNWOOD BLVD 204 98188 15325 SUNWOOD BLVD 301 98188 15325 SUNWOOD BLVD 302 TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA PROP STA PROP ZIP ID WA 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 • WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 • WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 • WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 1.53E +15 WA 98188 1.53E +15 • WA 98188 1.53E +15 WA 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 • WA 98188 1.53E +15 • APN 000320 -0021 022300 -0010 177050 -0010 177050 -0020 177050 -0030 177050 -0040 177050 -0050 177050 -0060 177050 -0070 • 177050 -0080 177050 -0090 177050 -0100 177050 -0110 177050 -0120 177050 -0130 177050 -0140 177050 -0150 177050 -0160 177050 -0170 177050 -0180 177050 -0190 177050 -0200 177050 -0210 177050 -0220 177050 -0230 • 177050 -0240 177050 -0250 177050 -0260 177050 -0270 177050 -0280 177050 -0290 177050 -0300 177050 -0310 177050 -0320 177050 -0330 177050 -0340 OWNER NAME SEATTLE CITY OF BETA HOLDINGS LTD BARTH RALPH DARWIN FIDECARO RAYMOND E CHAN YIPING FROID LORRI L JACKSON OSCAR CAMPBELL FREDERICK T & MESHIA FALUDI JACQUELYN ARNZEN LORAN F PRIEST BRANDI WILLIAMS PAULA ELLERBY CAROL J ELDER JOHN W HANCOCK JAMES J PAUL DEBORAH M ROSE ELIZABETH GENTRY WANDA F MILLER J LEE & CORA A YAMAGUCHI TERRY RANDALL BRIAN MAX TEELING DOROTHY M ESCAME AURORA A MACOUREK COREY D & MACOUREK MELISSA J ARESVIK CLARENCE KASALKO TANJA F BURBACH JAMES B & DONNA M ROPER BARBARA M CAMPBELL PHILLIP D BROOM FRED & DOLORES J KELLY JOHN CLINTON WISE DANIEL J LINDSTROM BRUCE D EASTERDAY PATRICK D THEPBOUPHA SOMCHAY JACOBS LORRAINE OWNER ADDRESS PO BOX 34018 18827 BOTHELL WAY NE 15344 62ND AVE S A -1 15346 62ND AVE S A -2 15348 62ND AV S A -3 4510 21ST AVE NE 15354 62ND AVE S 15356 62ND AVE S A -6 15358 62ND AVE S A -7 15364 62ND AVE S 15366 62ND AVE S B -2 18777 2ND AVE SW 15370 S 62ND B 4 AVE 15372 62ND AVE S B -5 15374 62ND AVE S B6 9946 RAINIER AVE S 15378 62ND AVE S B8 15384 62ND AVE S 1 15386 S 62ND C 2 AVE 15388 62ND AVE S C -3 15390 62ND AVE S C-4 15392 S 62ND C 5 AVE 6231 S 153RD ST 1 -D 6233 S 153RD ST D2 6235 S 153RD ST D -3 6237 S 153RD ST D-4 17625 161ST AVE SE 6241 S 153RD ST D -6 6245 S 153RD ST 6247 S 153RD ST 2 -E 6249 S 153RD ST 6253 S 153RD ST 15344 62ND AVE S E6 6259 S 153RD ST PO BOX 88503 OWNER CITY SEATTLE BOTHELL TUKWILA TUKWILA TUKWILA SEATTLE TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA NORMANDY PARK TUKWILA TUKWILA TUKWILA SEATTLE TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA RENTON TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA OWNER S OWNER Z PROP ADDRESS PROP CIT WA 98124 WA 98011 301 TUKWILA PKWY TUKWILA WA 98188 15344 62ND AVE S 1 TUKWILA WA 98188 15344 62ND AVE S 2 TUKWILA WA 98188 15344 62ND AVE S 3 TUKWILA WA 98105 15344 62ND AVE S 4 TUKWILA WA 98188 15344 62ND AVE S 5 TUKWILA WA 98188 15344 62ND AVE S 6 TUKWILA WA 98188 15344 62ND AVE S 7 TU KWI LA WA 98188 15344 62ND AVE S 1 TUKWILA WA 98188 15344 62ND AVE S 2 TUKWILA WA 98166 15344 62ND AVE S 3 TUKWILA WA 98188 15344 62ND AVE S 4 TUKWILA WA 98188 15344 62ND AVE S 5 TUKWILA WA 98188 15344 62ND AVE S 6 TUKWILA WA 98118 15344 62ND AVE S 7 TUKWILA WA 98188 15344 62ND AVE S 8 TUKWILA WA 98188 15344 62ND AVE S 1 TUKWILA WA 98188 15344 62ND AVE S 2 TUKWILA WA 98188 15344 62ND AVE S 3 TUKWILA WA 98188 15344 62ND AVE S 4 TUKWILA WA 98188 15344 62ND AVE S 5 TUKWILA WA 98188 15344 62ND AVE S 1 TUKWILA WA 98188 15344 62ND AVE S 2 TUKWILA WA 98188 15344 62ND AVE S 3 TUKWILA WA 98188 15344 62ND AVE S 4 TUKWILA WA 98058 15344 62ND AVE S 5 TUKWILA WA 98188 15344 62ND AVE S 6 TUKWILA WA 98188 15344 62ND AVE S 1 TUKWILA WA 98188 15344 62ND AVE S 2 TUKWILA WA 98188 15344 62ND AVE S 3 TUKWILA 15344 62ND AVE S 4 TUKWILA WA 98188 15344 62ND AVE S 5 TUKWILA WA 98188 15344 62ND AVE S 6 TUKWILA WA 98188 15344 62ND AVE S 1 TUKWILA WA 98138 15344 62ND AVE S 2 TUKWILA 177050 -0350 177050 -0360 359700 -0245 000320 -0004 359700 -0257 359700 -0282 359700 -0320 000320 -0005 000320 -0003 359700 -0220 • 359700 -0201 359700 -0222 000320 -0011 177050 -0370 177050 -0380 177050 -0390 177050 -0400 177050 -0410 177050 -0420 177050 -0430 177050 -0440 177050 -0450 177050 -0460 177050 -0470 177050 -0480 177050 -0000 • TANOVAN JENNY MAI TYER THELMA L WESTFIELD CORPORATION INC KING CO HOUSING AUTHORITY BANK OF AMERICA CITY OF TUKWILA CITY OF TUKWILA CITY OF TUKWILA MSI TRIANGLE LLC PACIFIC RIM HOLDINGS L L C KATO KAZUE & ORIN SEATTLE MENTAL HEALTH INST INC SOUTHCENTER 6450 BUILDING LLC ALLEN MICHAEL LOCKHART HOPE E PLUEGER DOROTHY CARIVEAU RHONDA L BRESLICH SANDRA K LARSON DAVE N CHEW DENISE S ANDERSON DONNA MAY DOWELL ROBERT E SMITH SUSAN M AGMATA STACEY C WISE DANIEL J 6263 S 153RD ST 3 TUKWILA 6265 S 153RD ST F4 TUKWILA 11601 WILSHIRE BLVD 11TH LOS ANGELES 600 ANDOVER PARK W TUKWILA PO BOX 2818 ALPHARETTA 6200 SOUTHCENTER BLVD TUKWILA 6200 SOUTHCENTER BLVD TUKWILA 6200 SOUTHCENTER BLVD TUKWILA 83 S KING ST 606 SEATTLE 6000 SOUTHCENTER BLVD 7 TUKWILA 15419 62ND AVE S TUKWILA 6100 SOUTHCENTER BLVD TUKWILA 190 QUEEN ANNE AVE N 500 SEATTLE 6269 S 153RD ST 6271 S 153RD ST G -2 6273 S 153RD ST 6275 S 153RD ST G4 6283 S 153RD ST 1H 6285 S 153RD ST H2 6287 S 153RD ST 1 -1 6289 S 153RD ST 1 -2 6291 S 153RD ST 4254 SW 323RD ST 6295 S 153RD ST K1 306 S 165TH ST TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA FEDERAL WAY TUKWILA BURIEN WA 98188 15344 62ND AVE S 3 WA 98188 15344 62ND AVE S 4 CA 90025 WA 98188 GA 30023 WA 98188 WA 98188 WA 98188 WA 98104 WA 98188 WA 98188 WA 98188 WA 98109 WA 98188 WA 98188 WA 98188 WA 98188 WA 98188 WA 98188 WA 98188 WA 98188 WA 98188 WA 98023 WA 98188 WA 98148 15455 65TH AVE S 225 TUKWILA PKWY 6200 SOUTHCENTER 6300 SOUTHCENTER 6400 SOUTHCENTER 6000 SOUTHCENTER 15419 62ND AVE S 6100 SOUTHCENTER 6450 SOUTHCENTER 15344 62ND AVE S 1 15344 62ND AVE S 2 15344 62ND AVE S 3 15344 62ND AVE S4 15344 62ND AVE S 1 15344 62ND AVE S 2 15344 62ND AVE S 1 15344 62ND AVE S 2 15344 62ND AVE S 1 15344 62ND AVE S 2 15344 62ND AVE S 1 15344 62ND AVE S 2 15344 62ND AVE S TUKWILA TUKWILA TUKWILA TUKWILA BL TUKWILA BL TUKWILA BL TUKWILA BL TUKWILA TUKWILA BL TUKWILA BL TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TU KWI LA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA TUKWILA PROP STA PROP ZIP ID WA 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 • WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 • WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 • • WA 98188 1.53E +15 WA 98188 1.53E +15 WA 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 WA 98188 1.53E +15 Corridor Program 'INTERSTATE Congestion Relief & Bus Rapid Transit Projects May 23, 2006 Carol Lumb, AICP Senior Planner City of Tukwila, Department of Community Development 6300 Southcenter Boulevard, Suite 100 Tukwila, Washington 98188 -2544 RECEIVED MAY 2 3 2006 COMMUNITY DEVELOPMENT 600 - 108th Avenue NE, Suite 405 Bellevue, WA 98004 Main 425 - 456 -8500 Fax 425 -456 -8600 Re: Request for a Shoreline Substantial Development Permit, Critical Areas Ordinance and Tree Ordinance Approval for the I -405, I -5 to SR- 169 - Renton Nickel Improvement Project Dear Ms. Lumb: The Washington State Department of Transportation (WSDOT) Interstate 405 (I -405) Project Team (Team) is currently designing traffic improvements within the I -405 corridor right -of -way (ROW) that are within the jurisdictional boundaries of the City of Tukwila. Additionally, part of the work for these improvements will take place within areas under the jurisdiction of the City of Tukwila Shoreline Master Program at the Green River. Activities within Shoreline - designated areas at the Green River include highway widening and re- striping. Activities under the jurisdiction of the City of Tukwila Critical Areas Ordinance (CAO) include wetland fill and sensitive areas buffer encroachment. Shoreline Substantial Development Permit (SSDP) submittal requirements were defined in the pre - application meeting held on February 18, 2006, based on the Shoreline Application Checklist and the CAO Application Checklist. All applicable items identified during the pre - application meeting are included as attachments in this SSDP application. Applicable requirements are discussed below. SSDP SUBMITTAL REQUIREMENTS Shoreline Checklist - Application Materials • Shoreline Application Checklist (Attachment 1). • Shoreline Application Form (Attachment 2). • Joint Aquatic Resources Permit Application (JARPA) Drawings (Attachment 3). • Application Fee: A $2,370 check is enclosed, which includes the application fee and public noticing fees. • National Environmental Policy Act (NEPA) /State Environmental Policy Act (SEPA) Environmental Assessment is being conducted for this project. We anticipate a SEPA Determination of Non - Significance (DNS) in June 2006. r' • • Shoreline Checklist - Public Notice Materials • King County Assessor's map: An additional $100 has been added to the permit application fee check for the City to provide this service. • Two sets of mailing labels: The cost of the mailing labels is included in the additional $100 mentioned above. • A 4' x 4' public notice board: WSDOT will post the public notice board in a location suggested by the City. Shoreline Checklist - Project Description and Analysis • Vicinity Map with Site Location, JARPA Drawings (Attachment 3). • General Shoreline Use Memorandum (Attachment 4). • Technical Information Report (Stormwater) (Attachment 5). • Wetland Sensitive Area Study (Attachment 6). • Design Geotechnical Memorandum (Attachment 7). Shoreline Checklist - Landscape Plan • Tree Mitigation Memorandum (Attachment 8). Shoreline Checklist - Sensitive Areas Plan • JARPA Drawings (Attachment 3). Shoreline Checklist - Civil Plans • Civil Plans, JARPA Drawings (Attachment 3). Shoreline Checklist - Shoreline Site Plan • Green River Shoreline Zone Site Plan (5 copies) (Attachment 9). CAO DEVIATION SUBMITTAL REQUIREMENTS CAO Checklist - Application Materials • CAO Application Checklist (Attachment 10). • CAO Application and Affidavit (Attachment 11). • Permit fee: There is no separate CAO permit fee. • General Shoreline Use Memorandum (Attachment 4). CAO Checklist - Tree Regulation Deviation • Tree Mitigation Memorandum (Attachment 8). CAO Checklist - Sensitive Area Ordinance Administratively Approved Uses of Deviations • Site Plan, JARPA Drawings (Attachment 3). T:IEnvironmental (Project Level)1South_ Renton _Nicke1112 - Permitting \Tukwila shoreline permit (Final)ICover Letter\Final Cover letter.doc 2 • Sensitive Areas Memorandum (Attachment 12). Please accept this letter as an official request from WSDOT for an SSDP, Tree Ordinance, and CAO approval for the I -405, I -5 to SR- 169 — Renton Nickel Improvement Project. Thank you in advance for taking the time to process our request. If you have any questions, please feel free to contact Terry Drochak at (425) 456 -8595 or terry.drochak @i405.wsdot.wa.gov. Sincerely, • • Allison Ray I -405 Project Environmental Manager (425) 456 -8610 rayalli@wsdot.wa.gov Attachments Attachment 1: Shoreline Application Checklist Attachment 2: Shoreline Application Form Attachment 3: JARPA Drawings Attachment 4: General Shoreline Use Memorandum Attachment 5: Technical Information Report (Stormwater) Attachment 6: Wetland Sensitive Area Study Attachment 7: Design Geotechnical Memorandum Attachment 8: Tree Mitigation Memorandum Attachment 9: Green River Crossing Project Plans Attachment 10: CAO Application Checklist Attachment 11: CAO Application and Affidavit Attachment 12: Sensitive Areas Memorandum Attachment 13: Wetland Mitigation Memorandum T:IEnvironmental (Project Level)1South_ Renton _Nickel112 - Permitting \Tukwila shoreline permit (Final)1Cover Letter\Final Cover letter.doc 3 • • ATTACHMENT 1 Shoreline Application Checklist RECEIVED MAY 2 3 2006 COMMUNITY DEVELOPMENT Check items submitted with application Information Required. May be waived in unusual cases, upon approval of both Public Works and Planning APPLICATION MATERIALS: X 1. Application Checklist (1 copy) indicating items submitted with application. X 2. Completed Application Form and drawings (5 copies). N/A 3. One set of 8 1/2" by 11" PMTs of the complete drawing set. X 4. Application Fee $2,000. Pending 5. SEPA Environmental Checklist (if required, see SEPA Application Packet) PUBLIC NOTICE MATERIALS: Pending 6. King County Assessor's map(s) which shows the location of each property within 500 ft. of the subject lot Pending 7. Two (2) sets of mailing labels for all property owners and tenants (residents or businesses) within 500 feet of the subject property. Note: Each unit in multiple - family buildings - -e.g. apartments, condos, trailer parks - -must be included (see Public Notice Materials section) Pending 8. A 4' x 4' public notice board will be required on site within 14 days of the Department determining that the application is complete (see Public Notice Materials section). PROJECT DESCRIPTION AND ANALYSIS: X 9. Vicinity Map with site location. X 10. A written discussion of project consistency with decision criteria (See Application). Check with a planner if you are unsure of what criteria apply to your project. X 11. If additional impervious surface is proposed provide a Technical Information Report (TIR) including feasibility analysis per King County Surface Water Design Manual (KCSWDM). For additional guidance contact Public Works. t(' • kmear COMPL E APPLICATION ECKLIST The materials listed below must be submitted with your application unless specifically waived in writing by the Public Works Department and the Department of Community Development. Please contact each Department if you feel that certain items are not applicable to your project and should be waived, or should be submitted at a later date for use at the public hearing (e.g., colored renderings). Application review will not begin until it is determined to be complete. ADDITIONAL MATERIALS MAY BE REQUIRED. The initial application materials allow starting project review and vesting the applicant's rights. However, they in no way limit the City's ability to require additional information as needed to establish consistency with development standards. City staff are available to answer questions about application materials at 206 - 431 -3670 (Department of Community Development) and 206 -433 -0179 (Department of Public Works). COMPLETE APPLICATION CHECKLIST TABLE T: \Environmental (Project Level) \South_Renton_Nickel \ 1 2-Permitting\Tukwila shoreline permit (Final)\Attachment 1 (Checklist) \Checklist.doc 1 X 12. Pro ensitive area studies as needed per Tu s Sensitive Areas Ordinance (TMC 18.45). Provide a geotechnical analysis of river bank stability if alteration is proposed. LANDSCAPE PLAN: N/A 13. (a) Landscape planting plan by a Washington State licensed landscape architect. One set of all plans and analyses shall have an original Washington State registered Landscape Architect stamp and signature. Plans must include the type, quantity, spacing and location of all plantings. Maximum size 24" x 36 ". N/A (b) Show all existing trees to be retained and any tree protection measures required (for example fencing at drip line). SENSITIVE AREAS PLAN: * ** JARPA drawings attachment - 3 (Feb. 18, 2006 meeting minutes) * ** 14. (a) Location of all sensitive areas (e.g. streams, wetlands, slopes over 15 %, coal mine areas and important geological and archaeological sites). For stream frontage provide existing and proposed top of stream bank, stream bank toe, stream mean high water mark, and base flood elevation (i.e., 100 yr. flood). Maximum size 24" x 36 ". * ** (b) Location of all required sensitive area buffers, setbacks tracts and protection measures. N/A (c) Show all trees over 4" caliper, indicating those to be retained. CIVIL PLANS: * ** JARPA drawings attachment - 3 (Feb. 18, 2006 meeting minutes) * ** 15. (a) One set of all civil plans and analyses shall be stamped, signed and dated by a licensed professional engineer. Include a graphic scale and north arrow. Maximum size 24" x 36 ". * ** (b) Vertical datum NAVD 1988 and horizontal datum NAD 83/91. Conversion calculations to NGVD 1929, if in a flood zone or flood -prone area. * ** (c) Existing (dashed) and proposed (solid) topography at 2' intervals. * ** (d) Construction limit lines, areas of clearing/grading/filling and volume and type of expected cut and fill. * ** (e) Existing and proposed utility easements and improvements, on site and in street (water, sewer, power, natural gas, telephone, cable). Schematic designs to be provided regardless of purveyor (e.g. site line size, location, and size of public main). No capacity calcs, invert depth, valve locations or the like are needed. * ** (f) If additional impervious surface is proposed provide a storm drainage design at least 90% complete, which meets the TIR and KCSWDM. Include all storm drainage maintenance access and safety features. Call out total existing and proposed impervious surface in square feet. * ** (g) Show the 100 yr. flood plain boundary and elevation as shown on FEMA maps. * ** (h) Footprints of all existing and proposed buildings. * ** (i) Fences, rockeries and retaining walls. SHORELINE SITE PLAN: X 16. (a) Existing top of bank, landward catch point toe of levee, riverbank toe, mean high water mark and base flood elevation. T:\Environmental (Project Level)\South_ Renton _Nickel112 - Permitting \Tukwila shoreline permit (Final)Wttachment 1 (Checklist) \Checklist.doc 2 X (b) For ork riverward of the MHWM show the dice the work extends into the river and distance to Federal projects and navigation channels. X (c) If the project is within the Tukwila Shoreline Master Program show the limits of the 40' River, 100' Low Impact and 200' High Impact Environments. X (d) Dike /riverbank maintenance easement if applicable (minimum 30' from the top of bank). X (e) Public access and/or trails. X (f) Construction limit lines, areas of clearing/grading /filling X (g) Parking lots, loading and service areas. X (h) Street furniture such as benches and bike racks. SHORELINE CROSS SECTIONS: N/A 17 (a) Provide shoreline cross sections at maximum 75' intervals along the project riverfront. N/A (b) Show all existing and proposed improvements. N/A (c) If the project is within the Tukwila Shoreline Master Program show the limits of the 40' River, 100' Low Impact and 200' High Impact Environments. N/A (d) Existing top of bank, landward catch point toe of levee, riverbank toe, mean high water mark and base flood elevation. OTHER: N/A 18.If project is not subject to design review submit dimensioned and scalable building elevations with keyed colors and materials. Show mechanical equipment and/or any proposed screening. N/A 19. Luminaire plan including location and type of street and site lighting. Include proposed fixture cut sheets, site light levels (foot - candles), and measures to shield adjacent properties from glare. T:\Environmental (Project Level)\South_ Renton _Nickel \12 - Permitting \Tukwila shoreline permit (Final)Wttachment I (Checklist) \Checklist.doc 3 • • ATTACHMENT 2 Shoreline Application Form RECEIVED 'MAY 2 3 2006 COMMUNITY DEVELOPMENT FOR STAFF USE ONLY 1. Sierra Type: P -SHORE �� File Number: �` �, c�G _ a O �'O tt Planner: Application Complete (Date: ) 04, Project File Number: p 0 b .. o01 Ft o j06, �G ti O Application Incomplete (Date: ) A ,. Other File Numbers: e,. Name: Allison Ray • CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3670 FAX (206) 431 -3665 E -mail: tukplan @ci.tukwila.wa.us APPLICATION NAME OF PROJECT/DEVELOPMENT: I -405, I -5 to SR- 169 — Renton Nickel Improvement Project LOCATION OF PROJECT/DEVELOPMENT: Give street address or, if vacant, indicate lot(s), block and subdivision, access street, and nearest intersection. LIST ALL 10 DIGIT PARCEL NUMBERS. The I -405, I -5 to SR169— Renton Nickel Improvement Project (the Project) spans from I -5 are not available. The portion of the project within the City of Tukwila's Shoreline Zone is located at the I -405, Green River crossing, an area that has no address. Quarter: Section: 23 Township: 23N Range: 4E (This information may be found on your tax statement.) DEVELOPMENT COORDINATOR: The individual who: • has decision making authority on behalf of the applicant in meetings with City staff, • has full responsibility for identifying and satisfying all relevant and sometimes overlapping development standards, and • is the primary contact with the City, to whom all notices and reports will be sent. Address: I -405 Project Office, 600 108th Avenue NE, Suite 405, Bellevue, WA 98004 Phone: (425) 456 -86.10 FAX: (425) 456 -8600 Signature: • Date: May 23, 2006 SHORELINE PERMIT STATE OF WASHINGTON COUNTY OF KING 00111 • CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3670 FAX (206) 431 -3665 E - mail: tukplan AFFIDAVIT OF OWNERSHIP AND HOLD HARMLESS PERMISSION TO ENTER PROPERTY SS The undersigned being duly sworn and upon oath states as follows: 1. I am the current owner of the property which is the subject of this application. 2. All statements contained in the applications have been prepared by me or my agents and are true and correct to the best of my knowledge 3. The application is being submitted with my knowledge and consent 4. Owner grants the City, its employees, agents, engineers, contractors or other representatives the right to enter upon Owners real property, located at the I -405, Green River crossing for the purpose of application review, for the limited time necessary to complete that purpose. 5. Owner agrees to hold the City harmless for any loss or damage to persons or property occurring on the private property during the CitYs entry upon the property, unless the loss or damage is the result of the sole negligence of the City. 6. The City shall, at its discretion, cancel the application without refund of fees, if the applicant does not respond to specific requests for items on the "Complete Application Checklist" within ninety (90) days. 7. Non - responsiveness to a City information request for ninety (90) or more days, shall be cause to cancel the apphcation(s) without refundoff EXECUTED at � U �IZ (state), on 'vn Jl Allison Rav (Print Name) I-405 Project Office, 600 108th Avenue NE, Suite 405, Bellevue, WA 98004 (Address) RECEIVED I MAY 2 3 2006 COMMUNITY DEVELOPMENT On this day persona1y appeared before me (Al s ( /\ to me known to be the individual who executed the foregoing instrument and acknowledged that he /she signed the same as his /her voluntary act and deed for the and purposes mentioned therein. SUBSCRIBED AND SWORN TO BEFORE ME ON THIS V. f »-dt DAY OF rr k 6AAAA., ( 1k, Uta- NOTARY PUBI1 in and for the State of Washington `�� tE,� • residing at 4csv� It ; My Commission expires on On- a'VC�—.... \ (.-12.) e t _ . ,�.� �+ s•�• '' ArL‘ 4 s� 1 ' '* f r i ? vel)\South_Renton_Nickel \12- Permitting \Tukwila shoreline permit (Final)Wttachment 2 (Application Form)\shoreline application covetegau gAI avtt.rif 2 t • • ATTACHMENT 3 JARPA Drawings RECEIVED NAY 2 3 2006 COMMUNITY DEVELOPMENT ATTACHMENT 4 General Shoreline Use Memorandum RECEIVED MAY 2 3 2006 COMMUNITY DEVELOPMENT INTERSTATE 405 Corridor Program Congestion Relief & Bus Rapid Transit Projects GENERAL SHORELINE USE MEMO 600 – 108th Avenue NE, Suite 405 Bellevue, WA 98004 Main 425- 456 -8500 Fax 425- 456 -8600 May 23, 2006 By Joseph Pursley, Permit Coordinator Subject I -405, I -5 to SR -169– Renton Nickel Improvement Project (Project) City of Tukwila Shoreline Application—Criteria for Projects Subject to the City of Tukwila Shoreline Regulations Below are responses to the "Criteria for projects subject to the City of Tukwila Shoreline Regulations" as defined under the (Tukwila Municipal Code [TMC] 18.44.110) General Shoreline Regulations. All uses within the shoreline overlay district must conform to the following general regulations. Responses to the following criteria are based on the use activities in and around the Green River. 1. The use is in conformance with the regulations of the underlying zone district. All Project elements are within conformance with the Urban Zone district regulations. 2. The use does not conflict with the goals and policies of the shoreline master program or the provisions of the Shoreline Act and shoreline regulations. The Project does not conflict with the goals and policies of the Shoreline Master Program. 3. No structures or accessory facilities shall be located over the river unless such structure protects or promotes the public interest. The Project does not propose to construct any structures or accessory facilities over the Green River. 4. There shall be no disruption of existing trees or vegetation within the river environment unless necessary for public safety or flood control, or if allowed as a part of an approved shoreline substantial development permit. The Project does not propose to disturb any existing trees within the river environment. A small portion of roadside vegetation will be disturbed on the west side of the Green River buffer. 5. No effluent shall be discharged into the Green River which exceeds the water quality classification as established by the State for the adjacent portion of the river. The Project does not propose to discharge effluent into the Green River. 6. All State and federal water quality regulations shall be strictly complied with. The Project will meet the requirements of all state and federal water quality regulations and will obtain all required permits. 7. Wildlife habitat in and along the river should be protected. The Project will not disturb wildlife or wildlife habitat in and along the Green River. 8. All perimeters of landfills or other land forms susceptible to erosion shall be provided with vegetation, retaining walls, or other satisfactory mechanisms for erosion prevention. The Project will incorporate the applicable measures in order to prevent erosion and ensure compliance with all water quality regulations. 9. All necessary permits shall be obtained from federal, State, County or municipal agencies. The Project will obtain all federal, state, and local permits. 10. Dredging for purposes other than for navigational improvements or flood control is prohibited. The Project does not propose dredging in the Green River. 11. Mining is prohibited along the river shoreline. The Project does not propose mining along the Green River shoreline. 12. Solid waste disposal is prohibited along the river shoreline. The Project does not propose to dispose solid waste along the Green River shoreline. 13. No property will be acquired for public use without dedication by or just compensation to the owner. The Project will not acquire properties for public use without dedication or just compensation to the owner. T: \Environmental (Project Level)\South_Renton_Nickel \12- Permitting \Tukwila shoreline permit (Final)Wttachment 4 (General Shoreline Use Memo) \General Shoreline Regulations.doc 2 14. Landfilling is prohibited within the river channel unless such landfill is determined by the Planning Commission to protect or promote the public interest. The Project does not propose to place fill within the Green River channel. 15. Not withstanding any provisions of this Code to the contrary, removal of any cottonwood tree within the river environment or the low- impact environment, which tree is 12 inches or greater in diameter as measured 4.5 feet above grade, shall be subject to the requirements of TMC Chapter 18.54, Tree Regulations. The Project does not propose to impact any trees within the river environment. JP T:\Environmental (Project Level)\South_Renton.Nickel \12- Permitting \Tukwila shoreline permit (Final)Wttachment 4 (General Shoreline Use Memo) \General Shoreline Regulations.doc 3 I ATTACHMENT 5 Technical Information Report (Stormwater) RECEIVED MAY 2 3 2006 COMMUNITY DEVELOPMENT Corridor Program Congestion Relief & Bus Rapid Transit Projects 600 — 108th Avenue NE, Suite 405 Bellevue, WA 98004 Main 425 -456 -8500 Fax 425- 456 -8600 May 23, 2006 TECHNICAL INFORMATION REPORT (STORMWATER) By Joseph Pursley, Permit Coordinator Subject I -405, I -5 to SR- 169 – Renton Nickel Improvement Project —City of Tukwila, Sensitive Areas Special Studies Review On March 20, 2006, a meeting regarding the I -405, I -5 to SR-169--Renton Nickel Improvement Project (Project) occurred between the Washington State Department of Transportation (WSDOT) Team and City of Tukwila staff. Included in the meeting topics was the Renton Nickel drainage design proposal. The Team conveyed that the Project is designed to be in compliance with the WSDOT Highway Runoff Manual (HRM), not the King County Surface Water Design Manual (KCSWDM). This memorandum summarizes preliminary stormwater planning and design within the Project limits. Note that the final design will continue to develop these preliminary stormwater management concepts following the requirements of the WSDOT HRM. Introduction The Project improvements include a combination of pavement widening and lane re- striping to create additional north and southbound general purpose and auxiliary lanes, bridge replacements, improvements to the SR -167/I -405 interchange, and reconfiguration of the stormwater drainage system. Highway widening involves cutting into banks and filling depressions within the highway prism. In some locations, fill will be placed in wetlands to widen the highway and to accommodate related highway infrastructure. The proposed stormwater drainage system for existing and new impervious surfaces includes stormwater collection and treatment facilities. The stormwater collection facilities include drainage ditches and pipes, ecology embankments, detention facilities, and flow control structures. The Project within the City of Tukwila is part of a design/build project, which means "contracting with a single entity for performing both design and construction on an entire project." The proposed Project requires working with a Multi- Agency Permitting (MAP) Team to obtain permits that focus primarily on water quality issues. The permits to be obtained for the Project include Clean Water Act Section 404 (U.S. Army Corps of Engineers [Corps]), Section 402 National Pollution Discharge Elimination System (NPDES) (Ecology), Section 401 Water Quality Certification (Ecology), Coastal Zone Management Act (Ecology), Hydraulic Project Approval (Washington Department of Fish and Wildlife [WDFW]), and Shoreline Substantial Development Permit and Critical Areas Ordinance Approval (Cities of Renton and Tukwila). The Project activities in the City of Tukwila are located in the Lower Green River Sub -Basin of the Green - Duwamish River Watershed. This sub -basin is further divided into Threshold Discharge Areas (TDAs). Two TDAs are located in the City of Tukwila (Table 1). Table 1 WRIA 9— Green- Duwamish River Watershed, Lower Green River Sub -Basin Threshold Discharge Area : r G1.1 G1.2 Gilliam Creek tributary Areas contributing to the east side of the Green River (including the Nelson Side Channel) Sub -Basin Limits Along 1.405 Unless Otherwise Noted 1 -5 to the Green River Green River to the BNSF railroad tracks Stormwater Management Existing stormwater collection and conveyance systems will be modified as required for the new roadway geometry and as required for stormwater management. Stormwater collection will assess three components: flow control, water quality treatment, and conveyance. Each stormwater component for the TDAs is addressed below. Flow Control Detention ponds are the preferred flow control best management practices (BMPs), although vaults may be used where right -of -way is limited. The two proposed ponds would provide a combined detention volume of 0.88 acre -feet. The proposed detention ponds are summarized below in Table 2. Table 2 Flow Control Facility 1.13. G1.1 G1.2 Total Mllepoat 0.2 1.0 Net New Pavement (ac) 1.05 1.05 Catchment Area (ac) 0.97 2.08 Facility Type Detention Pond Detention Pond Volume Required (ac -tt) 0.47 0.41 0.88 Discharges to a storm manhole, which drains to Gilliam Creek. Discharges to Nelson Side Channel and is outside the 100 -year flood plain. T:Environmental (Project Level) \South_ Renton_Nickel \12 - Permitting \Tukwila shoreline permit (Final)Attachment 5 (T1R Stormwater) \Technical Information Report (Stormwater).doc 2 Water Quality Treatment Enhanced water quality BMPs have been proposed for stormwater treatment. Ecology embankments are proposed extensively and some modifications have been made to enhance the treatment function. Overall, the runoff treatment would be provided to a minimum of 1.05 acres of new and existing pavement, or 133 percent of the pavement area specified for treatment by criteria. Existing ecology embankments would be reconstructed if they are to be removed by roadway widening. The runoff treatment facilities are summarized in Table 3. Table 3 Water Quality Treatment Basin Name G1.1 G1.2 Facility I.D. PGIS Catchment Area (ac) 0.29 0.2 — 0.3 0.8 — 1.0 RT G1.1 RT G1.2 Water Quality Totals 1.40 New Pavement Area (ac) 1.05 1.05 Percent Treatment of Pavement Area 133% 133% Ecology Embankment Ecology Embankment Facility Length Required (ft} 500 162 662 Conveyance The proposed Project retains much of the existing drainage structures and systems within the Project area. Closed conveyance systems would be used as the preferred conveyance method along the I -405 Corridor. New drainage structures added to the proposed edge of shoulders should be conveyed to the proposed stormwater management facilities. Summary Two TDAs, G1.1 and G1.2, are located within the City of Tukwila and the Project boundaries. Two detention ponds (2.08 acres) are the proposed stormwater flow control measure for the 1.5 -acre increase in new pavement. The proposed water quality treatment measure, ecology embankments, will treat 133 percent of the pavement area. The Project will retain many of the existing drainage features for conveyance of stormwater to the proposed detention ponds. T: \Environmental (Project Level)\South Renton_Nickel \l2- Permitting \Tukwila shoreline permit (Final)Wttachment 5 (TIR Stormwater)1Technical Information Report (Stormwater).doc 3 ATTACHMENT 6 Wetland Sensitive Area Study RECEIVED MAY 2 3 2006 COMMUNITY DEVELOPMENT 1 -405, 1 -5 to SR- 169 — Renton Nickel Improvement Project City of Tukwila: Wetlands Sensitive Area Study Information in this report was directly derived from the 1 -405, 1 -5 to SR -169 — Renton Nickel Improvement Project Wetland /Biology Report dated May 2006. Washington State Department of Transportation May 2006 Table of Contents Table of Contents Acronyms and Abbreviations Glossary v Summary S -1 1.0 Introduction 1 -1 1.1 Purpose and Goals 1 -1 1.2 Project Description 1 -1 2.0 Methods 2 -1 2.1 Wetland Identification, Delineation, and Classification 2 -1 2.2 Wetland Functional Assessment 2 -1 2.3 Agency Coordination and Field Review of Information 2 -2 3.0 Affected Environment 3 -1 3.1 Project Area Setting 3 -1 3.2 Wetland Determination 3 -1 3.2.1 Wetland Descriptions 3 -2 3.2.2 Wetland Rating and Classification Summary 3 -8 3.2.3 Wetland Functions and Values Summary 3 -8 4.0 Impacts 4 -1 4.1 Permanent Impacts 4 -1 4.2 Temporary Impacts 4 -1 4.3 Functions and Values 4 -1 5.0 Recommendations 5 -1 5.1 Avoidance and Minimization Measures 5 -1 5.2 Mitigation Sequence 5 -1 6.0 Preliminary Compensatory Mitigation 6 -1 . 7.0 References 7 -1 City of Tukwila: Wetlands Sensitive Area Study May 2006 Table 2 -1 City of Tukwila Wetland Regulations 2 -3 Table 3 -1 Summary of Wetlands Located within the City of Tukwila 3 -2 Table 3 -2 Wetland Ratings, City of Tukwila 3 -8 Table 3 -3 Wetland Functions and Values 3 -9 Table 4 -1 Filled or Disturbed Wetlands, City of Tukwila 4 -2 Table 4 -2 Summary of City of Tukwila Impacted Wetland Area 4 -2 Table 5 -1 Avoidance and Minimization Measures 5 -1 List of Tables List of Appendices Appendix A: Common and Taxonomic Names of Plants Observed in the Study Area Appendix B: Wetland Data Sheets Compact Disc (CD) Wetland Delineation Forms Functional Assessment Forms Wetland Rating Forms City of Tukwila: Wetlands Sensitive Area Study May 2006 ii Acronyms and Abbreviations BMP CEQ Corps Ecology FAC FACU FACW FEIS GMA HOV 1-405 1 -5 MBI MP NI NL NMFS NRCS NWI OBL Project PAB PEM PFO POW PSS ROW SMA TMC UPL USFWS City of Tukwila: Wetlands Sensitive Area Study best management practice Council on Environmental Quality United States Army Corps of Engineers Washington Department of Ecology facultative facultative upland facultative wetland Final Environmental Impact Statement Growth Management Act high occupancy vehicle Interstate 405 Interstate 5 mitigation banking instrument milepost no indicator status not listed National Marine Fisheries Service Natural Resources Conservation Service National Wetlands Inventory obligate 1 -405, 1 -5 to SR- 169 — Renton Nickel Improvement Project palustrine aquatic bed palustrine emergent palustrine forested palustrine open water palustrine scrub -shrub right of way Shoreline Management Act Tukwila Municipal Code upland United States Fish and Wildlife Service J. May 2006 iii :4 WAC WDFW WDNR WIS WSDOT Wit f ,<,g Meanin City of Tukwila: Wet /ands Sensitive Area Study r.. • Lei Washington Administrative Code Washington Department of Fish and Wildlife Washington Department of Natural Resources wetland indicator status Washington State Department of Transportation YLY2. • •. May 2006 iv Glossary buffer emergent emergent wetland enhancement fill material forested wetland hydrology in -kind compensation mitigation City of Tukwila: Wetlands Sensitive Area Study A designated area along the buffer of a stream or wetland that is regulated to control the negative effects of adjacent development from intruding into the aquatic resource. A plant that grows rooted in shallow water, the bulk of which emerges from the water and stands vertically. In the USFWS classification system (Cowardin et al. 1979), a wetland characterized by erect, rooted, herbaceous hydrophytes, excluding mosses and lichens. An improvement in the functions and values of an existing wetland typically through the planting of native plant species. Any material placed in an area to increase surface elevation. In the USFWS classification system (Cowardin et al. 1979), a wetland characterized by woody vegetation that is 20 feet tall or taller. groundwater That portion of the water below the ground surface that is under greater than atmospheric pressure. herbaceous Having the characteristics of an herb; a plant with no persistent woody stem above the ground. hydric soil A soil that formed under conditions of saturation, flooding, or ponding long enough to develop anaerobic conditions in the upper part. The science dealing with the properties, distribution, and circulation of water. Compensation for lost wetland habitat with a replacement wetland of the same habitat type. Defined in WAC 197 -11 -766 as: (1) avoiding the impact altogether by not taking a certain action or parts of an action; (2) minimizing impacts by limiting the degree or magnitude of the action and its implementation, by using appropriate technology, or by taking affirmative steps to avoid or reduce impacts; (3) rectifying the impact by repairing, rehabilitating, or restoring the affected environment; (4) reducing or eliminating the impact over time by preservation and maintenance operations during the life of the action; (5) compensating for the impact by replacing, enhancing, or providing substitute resources or environments; and /or (6) monitoring the impact and taking appropriate corrective measures. May 2006 v 1 , , ,,,,,, . Words . n , ... ,eye 4 �; out -of -kind compensation palustrine project area restoration saturated soil conditions scrub -shrub soil matrix study area wetland City of Tukwila: Wetlands Sensitive Area Study M eaning n} Y , A ' t h � 1 �g rel#i`N .�yaiJrI7A 3 f i � . y dN.t�itPri% •Y A�`. .5' * 4-' T. � 5 µ 'C£[1+s kNxi�'e' Nnr'� e . , e.•�- . Compensation for lost wetland habitat with a replacement wetland of a different habitat type. In the USFWS classification system (Cowardin et al. 1979), freshwater areas (having less than 0.5 parts per thousand ocean - derived salts) dominated by trees, shrubs, persistent emergents, mosses, or lichens. They can be non -tidal or tidal. Palustrine also includes wetlands lacking this vegetation but having the following characteristics: (1) area less than 20 acres; (2) no active wave - formed or bedrock shoreline; and (3) water depth in the deepest part is less than 6.6 feet at low water. The entire area within the 1-405, 1 -5 to SR- 169 — Renton Nickel Improvement Project. To improve a disturbed or altered wetland by returning wetland parameters that may be missing. The restoration may return a wetland habitat to its original state. A condition in which all easily drained voids (pores between soil particles) in the root zone are temporarily or permanently filled with water to the soil surface at pressures greater than atmospheric. In the USFWS classification system (Cowardin et al. 1979), areas dominated by woody vegetation less than 20 feet tall. The species include tree shrubs, young trees, and trees or shrubs that are stunted because of environmental conditions. The portion of a given soil having the dominant color. In most cases, the matrix will be the portion of the soil having more than 50 percent of the same color. Areas that were specifically evaluated for the presence of wetlands as defined by the Scope of Work for this project. This area is similar to the project area, but only includes areas within the 1 -405 right of way and stormwater facilities footprints. Wetlands are formally defined by the Corps (Federal Register 1982), the U.S. Environmental Protection Agency (Federal Register 1988), the Washington State SMA of 1971 (Ecology 1991), and the GMA (Ecology 1992) as: ... those areas that are inundated or saturated by surface or groundwater at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas. (Federal Register 1982, 1986). May 2006 vi wetland, continued The SMA and the GMA definitions add: Wetlands do not include those artificial wetlands intentionally created from non - wetland sites, including, but not limited to, irrigation and drainage ditches, grass - lined swales, canals, detention facilities, wastewater treatment facilities, farm ponds, and landscape amenities, or those wetlands created after July 1, 1990 that were unintentionally created as a result of the construction of a road, street, or highway. Wetlands may Include those artificially- created wetlands intentionally created from non - wetland areas to mitigate the conversion of wetlands. wetland boundary The point on the ground at which a shift from wetlands to non - wetlands or aquatic habitat occurs. These boundaries usually follow topographic contours. wetland hydrology The total of all wetness characteristics in areas that are inundated or have saturated soils for a sufficient duration to support hydrophytic vegetation. wetland indicator status Categories of plant species based upon the estimated (WIS) probabilities (expressed as a frequency of occurrence) of a species occurring in a wetland or non - wetland. Wetland indicator status categories include the following: Obligate (OBL): species that almost always occur wetlands under natural conditions (estimated probability is greater than 99 percent). City of Tukwila: Wetlands Sensitive Area Study Facultative wetland (FACW): species that usually occur in wetlands (estimated probability is 67 to 99 percent), but are occasionally found in non - wetlands. Facultative (FAC): species that are equally likely to occur in wetlands (estimated probability is 34 to 66 percent) or non - wetlands. Facultative upland (FACU): species that usually occur in non - wetlands (estimated probability is 67 to 99 percent), but are occasionally found in wetlands. Upland (UPL): species that almost always occur in non - wetlands under normal conditions (estimated probability is greater than 99 percent). Not listed (NL): species that are not listed and are presumed to be upland species. May 2006 vii gt$x '+'�.," n ^.Y_n'.; svia,� i.a m:'se9` 1 • WOrds, 1 y. '' � ..„ . f,.:„ n i ` �, Y`� . . .' 1:1 „4- : .+ o A s r s� V �•{r!:i °- ia?r.YF 3..7' ^err, � ., ..4a�p,„.a.A wetland indicator status No indicator status (NI): species that have not yet (WIS), continued been evaluated. A ( +) or ( -) following the WIS of a given species signifies a greater or lesser likelihood of being found in wetland conditions. City of Tukwila: Wetlands Sensitive Area Study May 2006 viii Su m ma ry The Washington State Department of Transportation (WSDOT) is planning construction to improve Interstate 405 (1 -405) between Interstate 5 (1 -5) in the City of Tukwila and the Cedar River in the City of Renton in King County, Washington. WSDOT project activities near the shoreline of the Green River in the City of Tukwila, require a Wetland Sensitive Area Study as part of the City of Tukwila's Shoreline Permit process. City of Tukwila wetlands that occur within the 1-405, 1 -5 to SR-169--Renton Nickel Improvement Project (Project) are summarized in this document. Nine wetlands were delineated in the City of Tukwila by WSDOT. Overall, wetlands in the affected environment are generally degraded with a history of disturbance due to road or interchange construction and past development. The wetlands are grouped into three wetland types: emergent, scrub- shrub, and forested. Emergent wetlands are primarily dominated by non - native vegetation such as reed canarygrass, bentgrass, Himalayan blackberry, and soft rush. The majority of wetlands in the affected environment are emergent. Scrub -shrub and forested wetlands are characterized by deciduous species such as red alder, willow, and black cottonwood. Five wetlands in the City of Tukwila are Category IV wetlands according to the Washington Department of Ecology Wetlands Rating System. Four Category 111 wetlands also occur within the study area. There are no Category 1 or 11 wetlands in the City of Tukwila study area. Construction would result in the Toss (filling) or temporarily disturbance of an estimated 0.18 acres of wetland. Of this total, approximately 0.15 acres would be permanently filled and 0.03 acres would be temporarily disturbed during construction and subsequently restored. Temporary construction impacts may include sediment transport and erosion from disturbed soils on site due to construction activities. During the preliminary design process, WSDOT made several adjustments to avoid or minimize impacts to wetlands and their buffers. The most common avoidance and minimization measures included moving stormwater facilities and requiring retaining walls to reduce the extent of fill necessary to construct the road improvements. WSDOT proposes several measures to compensate for impacted wetland functions and values using a combination of wetland creation and enhancement of existing degraded wetlands at an off -site location. WSDOT will also implement drainage system improvements to provide stormwater treatment and detention within each basin. During project -level design, WSDOT will identify specific best management practices (BMPs) and other measures to be incorporated into construction specifications developed during the final design process. BMPs will be implemented during construction and operation of the Project to minimize sedimentation and /or contamination of wetlands. Prior to final development of project - specific BMPs, WSDOT will meet with federal, state, and local agencies to identify mitigation priorities and options for avoiding or minimizing wetland losses, and to compensate for any losses. In accordance with Council on Environmental Quality (CEQ) regulations pertaining to mitigation, BMP sequencing includes: 1. Avoidance measures that eliminate the onset of impacts. City of Tukwila: Wetlands Sensitive Area Study May 2006 S -1 4 2. Minimization measures proposed to decrease the magnitude or severity of the impact. 3. Rectification measures that are part of the Project and repair or restore resources. 4. Reduction or elimination measures that soften the impacts. 5. Compensation measures designed to offset unavoidable adverse impacts. 6. Monitoring measures that become part of the project to ensure that resources are not further degraded by the Project. City of Tukwila: Wetlands Sensitive Area Study May 2006 S -2 1.0 Introduction 1.1 Purpose and Goals This Wetlands Sensitive Area Study has been prepared to meet requirements for the City of Tukwila Shoreline Permit. Project biologists completed wetland investigations and prepared this report. The objectives of the wetland study include: • Determine the location and condition of wetlands within the City of Tukwila. • Evaluate project - related impacts. • Outline appropriate measures for project planning and to help the project team meet federal, state, and local regulatory requirements. 1.2 Project Description The Project is a WSDOT project that will result in improvements to the 1-405 corridor in and around the City of Tukwila, Washington. The project area begins just east of the 1- 5/1 -405 interchange and extends east past the border between Tukwila and Renton. Improvements will also be made to local roads, freeway structures, and the stormwater drainage system associated with the Project. The Project also includes new stormwater management facilities and a substantial upgrade of existing drainage structures and systems. City of Tukwila: Wetlands Sensitive Area Study May 2006 1 -1 2.0 Methods This section describes the methodology used for preparing this Wetlands Sensitive Area Study, including the review of existing information and field investigation procedures. These methods are consistent with current federal, WSDOT, and other state agency requirements. 2.1 Wetland Identification, Delineation, and Classification Wetlands were delineated using the Routine Determination Method outlined in the Washington State Wetlands Identification and Delineation Manual (Ecology 1997), a manual consistent with the Corps of Engineers Wetlands Delineation Manual (Environmental Laboratory 1987). Wetlands were then classified according to the U.S. Fish and Wildlife Service (USFWS) classification system (Cowardin et al. 1979) and rated using the Washington State Wetland Rating System for Westem Washington, Revised developed by the Washington State Department of Ecology (Ecology; Hruby 2004). Wetlands were also rated according to the local jurisdiction's sensitive or critical areas ordinance (Table 2 -1). All wetlands located in the WSDOT right -of -way (ROW) in the study area were delineated and classified. In general, wetland delineation consisted of three main tasks: (1) assessing vegetation, soil, and hydrologic characteristics to identify areas meeting the wetland determination criteria; (2) evaluating constructed drainage features to determine if they would be regulated as wetlands; and (3) marking wetland boundaries. Common plant names are used throughout this report. A list of corresponding taxonomic names is provided in Appendix A. 2.2 Wetland Functional Assessment Wetlands perform a variety of biological, physical (hydrologic), and chemical (water quality) functions. For this Project, wetlari `unctions were , evaluated using the WSDOT Wetland Functions Characterization Tool for Linear Projects manual (Null et al. 2000) and were assessed based on best professional judgment. The manual is a qualitative tool designed for linear projects to enable the rapid documentation and characterization of the functions provided by a given wetland. The methodology does r. quantitative values to a particular function, but identifies functional strengths and weaknesses to help guide management decisions and aid in mitigation choices. Wetland functions are divided into the following 14 categories: • Flood flow alteration • Sediment removal • Nutrient and toxicant removal • Erosion control and shoreline stabilization • Production of organic matter and its export • General habitat suitability • Habitat for aquatic invertebrates City of Tukwila: Wetlands Sensitive Area Study May 2006 2 -1 • Habitat for amphibians • Habitat for wetland- associated mammals • Habitat for wetland- associated birds • General fish habitat • Native plant richness • Educational or scientific value • Uniqueness and heritage 2.3 Agency Coordination and Field Review of Information The following data sources were reviewed for information on vegetation patterns, topography, drainage, and potential or known wetlands or wildlife habitats in the Project vicinity: • National Wetland Inventory (NWI) Maps (USFWS 1987 and 1988) • U.S. Geological Survey 1:24,000 Topographic Maps • Natural Resources Conservation Service (NRCS) soils surveys and county hydric soils lists (NRCS 1995 and Snyder et al. 1973) • King County Sensitive Areas Map Folio (King County 1990) • City of Tukwila Wetland/Watercourse Buffer Map (City of Tukwila 2004) • Correspondence with Services: USFWS, National Marine Fisheries Service (NMFS), Washington Department of Fish and Wildlife (WDFW), and Washington Department of Natural Resources (WDNR) Wetlands and associated buffers are regulated by the local jurisdiction. For the Project, the local jurisdictions include the City of Tukwila. Project biologists rated the wetlands based on the pertinent city critical areas regulations, which then determined wetland buffer widths and mitigation ratios. Wetland buffers are vegetated upland areas immediately adjacent to wetlands that protect the many functions and values of wetlands. Scientific literature indicates that buffer widths are directly related to the degree of protection for a particular function. The following sections extract wetland information contained in the critical areas ordinances of Tukwila. The full text of critical areas regulations should be consulted during application. City of Tukwila As required by the Growth Management Act (GMA), the City of Tukwila updated the Tukwila Municipal Code (TMC) Chapter 18.45 Environmentally Sensitive Areas in accordance with best available science in December 2004. TMC 18.45 classifies wetlands into three types as described below. Type 1 wetlands meet any of the following criteria: • Contain species listed by the federal government or state as endangered or threatened, or the presence of critical or outstanding habitat for listed species City of Tukwila: Wetlands Sensitive Aiea Study May 2006 2 -2 .. Wetland Classification- • • Buffer Requirement: 100 feet ' Type 1 Type 2 80 feet Type 3 50 feet • Have 40 to 60 percent permanent open water in dispersed patches with two or more classes of vegetation • Are equal to or greater than 5 acres in size and have three or more wetland classes, one of which may be substituted by permanent or open water • Documented as regionally significant waterfowl or shorebird areas by WDFW Type 2 wetlands meet any of the following criteria: • Are equal to or greater than 1 acre in size • Have three or more wetland classes and are Tess than 5 acres • Contain nesting sites for priority species as listed by the WDFW • Hydrologically connected (non - isolated) to a Type 1 or Type 2 watercourse Type 3 wetlands are those wetlands not meeting the definition of Type 1 or 2 wetlands that are greater than 1,000 square feet (sf) and less than 1 acre in size with two or fewer wetland classes. According to the TMC 18.45.080, buffers from the wetland edge are required (see Table 2 -1). The TMC also requires that commercial and industrial buildings shall be set back 15 feet from the buffer's edge, and all other development be set back 10 feet (TMC 18.45.080 [F]). Impacts to wetlands are to be mitigated according to the provisions under TMC 18.45.090: Wetland Uses, Alterations, and Mitigation. Section D2 states that "in order to achieve the City's goal of no net Toss of wetland functions and acreage, alteration of wetlands will require the applicant to provide a restoration or creation plan." Mitigation shall be implemented through the creation of wetlands (from non - wetland areas) or through the restoration of degraded wetlands. Table 2 -1 provides a summary of the City of Tukwila's wetland buffer requirements. Table 2 -1 City of Tukwila Wetland Regulations City of Tukwila: Wetlands Sensitive Area Study May 2006 2 -3 300 Affected Environment The following sections describe existing environmental information for the project vicinity and the findings of the wetland determinations made in the field. Wetland ratings established by state and local jurisdictions, wetland classifications, wetland functions and values, and wetland proximity to streams are also described below. The NWI (USFWS 1987 and 1988) and King County Sensitive Areas Map Folio (King County 1990) contain few mapped wetlands in the study area. Palustrine forested (PFO) and palustrine scrub -shrub (PSS) wetlands identified in these documents are associated with the Green River basin. These resources also contain maps of a few smaller palustrine emergent (PEM) and /or PSS wetlands. The City of Tukwila Wetland/Watercourse Buffer Map (City of Tukwila 2004) shows locations of wetlands and streams in the city. The map identifies two wetlands associated with Gilliam Creek that are not given specific names. The wetlands are located south of the 1 -5 northbound to 1-405 northbound ramp, and west of 61st Avenue South. The wetlands were identified and delineated by project biologists. The U.S. Soil Conservation Service, now called the NRCS, has mapped the majority of the project area as Urban land soils. Two soil units (Puget silty clay loam and Tukwila Muck) occur in the project vicinity and are classified as hydric soils. 3.1 Project Area Setting The Project area is located within the City of Tukwila. The majority of the Project area where road improvements will occur is WSDOT ROW, with small portions in city, county, or private ownership. The topography in the Project vicinity is typical of lowland areas south of Lake Washington. The entire Project lies within the western hemlock vegetation zone of westem Washington (Franklin and Dyrness 1988). Vegetation is dominated by needle - leaved, evergreen tree species such as Douglas -fir, western hemlock, and western red cedar. Other dominant tree species include red alder and big -leaf maple, which occur in scattered patches of deciduous forest habitats in the vicinity of the Project. Uplands in the Project vicinity consist of areas adjacent to the existing roadway, residential properties, and disturbed areas. Vegetation in the ROW upland areas includes species typically associated with disturbance and past land - clearing activities. Himalayan blackberry, bentgrass, fescue, quackgrass, and other weeds have colonized these areas. Other uplands are landscaped residential areas or undisturbed mixed deciduous forest dominated by big -leaf maple, black cottonwood, Douglas -fir, and red alder. Dominant native understory shrubs include snowberry, Indian -plum, and beaked hazelnut. Upland soils in the study area have been intensively disturbed by roadway construction and maintenance, and ditching. 3.2 Wetland Determination Project biologists delineated nine wetlands totaling approximately 3.75 acres within the City of Tukwila. Table 3 -1 presents a summary of these wetlands. The wetland areas shown represent the total area of wetland delineated. City of Tukwila: Wetlands Sensitive Area Study May 2006 3 -1 { E Wetland Identifier Area 1 (acres) Washington State. , Cowardin Rating Classification' (Ecology) Local Jurisdiction and Rating Local Jurisdiction Buffer Requirement" (feet) Identified on Local Jurisdiction Wetland Inventory? 0.15R I 0.52 0.1R ._.... - - 0.05 0.25M i 0.07 0.3R 1.29 0.4L i } 0.11 0.5L ! 0.05 0.6L 1 0.17 0.94L l 0.48 0.9R 1.01 TOTAL i 3.75 PEM PEM _.__........._. PEM PFO 4_ — - u..__......_.._. I PEM PEM PSS PSS PAB III IV IV III - - ._...__...._..._....._.._- IV IV IV III III Tukwila -2 Tukwila -3 Tukwila -3 Tukwila -2 ___.._.....r..._.._.._._ Tukwila 3 a Tukwila - 3 Tukwila - 3 Tukwila -2 Tukwila -2 80 50 50 80 _.....- 50 ._._.___._. ._.__....__..__..._ 50 _. _. _r_ - 50 __�.._..._ 80 80 Y N - N Y — ...._ - ... _._.__ ..._.._....___.__._....._...... _..----- _ - N _. - . .__.._._ — .._ N .....__._.__.._.. N n.t.. �.:. 3.2.2 Wetland Rating and Classification Summary Table 3 -2 provides a summary of the wetland ratings identified in the wetland descriptions and identifies local wetland buffer requirements. Table 3 -2 Wetland Ratings, City of Tukwila 1 PAB - Palustrine Aquatic Bed; PEM - Palustrine Emergent; PFO - Palustrine Forested; PSS - Scrub -Shrub City of Tukwila: Wetlands Sensitive Area Study 3.2.3 Wetland Functions and Values Summary Table 3 -3 summarizes the wetland functional assessment for each wetland as determined on the functional assessment data sheets (Appendix B). Many of the nine wetlands within the entire study area are small (less than one -third acre). Generally, larger wetlands in the study area are typically located in flat, low -lying areas. The smaller wetlands tend to be located in small closed topographic depressions, or are hydrologically connected (linked to or associated with a water source) to hillside seeps or roadside drainage ditches. Due to their size and topographic location, larger wetlands within the study area are more likely to provide a higher number and higher value of beneficial functions than smaller wetlands. The study area is located within the Urban Growth Area, with most of the study area comprised of existing road ROW. All of the wetlands within the study area have been disturbed to some extent by development, including the construction of 1-405 and commercial or residential development in the surrounding area. Consequently, the wetlands are compromised in their ability to provide functions and values. More than one -half of the wetlands were found to have the potential to provide valuable stormwater management functions including: flood flow alteration, sediment removal, nutrient and toxicant removal, and erosion control. Some of these areas have constricted outlets and dense woody vegetation, slowing floodwaters during storm events. Most wetlands have dense herbaceous vegetation that can remove sediment and toxicants present in road runoff. May 2006 3 -8 Wetland 0.1R Size and location: The 0.05 -acre wetland is located in the southeast portion of the 1- 405/1-5 interchange, between 1 -5 northbound lanes and the 1 -5 northbound to SR -518 ramp. The wetland is a small, isolated depression that receives road runoff. Vegetation: Dominated by reed canarygrass, soft rush, Himalayan blackberry, and bentgrass. Soils: Soils consist of an A layer of very dark brown (10YR 2/2) sandy loam extending to 8 inches, over a B horizon of dark gray (2.5Y 4/1) clay loam with brown (7.5YR 4/4) mottles. Hydrology. Soils saturated to the surface in the soil pit, with free water present at 15 inches deep. Areas of standing water are present elsewhere in wetland. Wetland Classification: Wetland 0.1 R is a PEM wetland that is seasonally saturated /inundated. It is a Category IV under Ecology's rating system, and a Type 3 under the City of Tukwila's sensitive areas regulations. Wetland Functional Assessment Primary functions of Wetland 0.1 R are flood flow alteration and sediment removal. The wetland receives road runoff from 1-405 and has a long duration for water retention. Wetland Determination: The boundary of Wetland 0.1R was flagged where indicators of wetland vegetation, hydric soil, and wetland hydrology were present. These corresponded to the base of fill for adjacent roads and topographic changes. Adjacent uplands were distinguished from the wetland by the lack of hydric soils or indicators of wetland hydrology, and the presence of upland plant species. Wetland 0.15R Size and location: The 0.52 -acre wetland is located north of Southcenter Parkway and south of 1 -5 northbound to 1 -405 northbound ramp. Wetland 0.15R is a previous WSDOT mitigation area that is associated with Gilliam Creek. Vegetation: Dominated by reed canarygrass. Soils: A layer of very dark gray (2.5Y 3/1) clay loam extending to 7 inches, over a B horizon of very dark gray (2.5Y 3/1) clay loam with dark brown (7.5YR 3/3) mottles. Hydrology. Soils are saturated to the surface, with free water occurring at a depth of 6 inches. Areas of ponding are present elsewhere in the wetland. Wetland Classification: Wetland 0.15R is a PEM wetland that is seasonally saturated /inundated. It is a Category III wetland under Ecology's rating system and a Type 2 under the City of Tukwila's sensitive areas regulations. Wetland Functional Assessment Primary functions of Wetland 0.15R are flood flow alteration, sediment removal, nutrient and toxicant removal, and production and export of organic matter. The wetland receives road runoff from adjacent roads, contains dense herbaceous vegetation, and has a surface water connection to a stream. Wetland Determination: The boundary of Wetland 0.15R was flagged where indicators of wetland vegetation, hydric soil, and wetland hydrology were present. These corresponded to the base of the fill for adjacent roads or topographical changes. Adjacent uplands were distinguished from the wetland by the lack of soil saturation or hydric soil indicators, and the presence of upland plant species. City of Tukwila: Wetlands Sensitive Area Study May 2006 3 -3 Wetland 0.25M Size and location: The 0.07 -acre wetland is located in the median between 1-405 northbound lanes and the 1-405 to 1 -5 northbound high occupancy vehicle (HOV) ramp. Wetland 0.25M is a maintained swale that receives road runoff and discharges to a culvert. Vegetation: Dominated by reed canarygrass and red alder saplings. Soils: An Al horizon of very dark gray (10YR 3/1) sandy loam extending to 4 inches, over an A2 horizon of black (10YR 2/1) sandy loam with dark yellowish brown (10YR 4/4) mottles. The B horizon, extending from 8 to 13 inches, consists of very dark gray (2.5Y 3/1) sandy loam with dark yellowish brown (10YR 4/4) mottles. Soils were too compact to sample below 13 inches deep. Hydrology. Soils are saturated to the surface and free water is present at a depth of 9 inches. The area is likely inundated during the early portion of the growing season. Wetland Classification: Wetland 0.25M is a broad, swale PEM wetland that is seasonally inundated /saturated. It is a Category IV wetland under Ecology's rating system and a Type 3 under the City of Tukwila's sensitive areas regulations. Wetland Functional Assessment: Primary functions of Wetland 0.25M are sediment removal, and production and export of organic matter. The wetland receives road runoff, contains dense herbaceous vegetation, and has a surface water connection to a stream. Wetland Determination: The boundary of Wetland 0.25M was flagged where indicators of wetland vegetation, hydric soil, and wetland hydrology were present. These corresponded to the base of the fill for adjacent roads or topographical changes. Adjacent uplands were distinguished from the wetland by the lack of soil saturation or hydric soil indicators. Wetland 0.3R Size and location: The 1.29 -acre wetland is located south of 1 -405 northbound lanes, and northwest of Tukwila Parkway /61st Avenue South intersection. The wetland is located in a depression and is associated with Gilliam Creek. Vegetation: Dominated by reed canarygrass in the emergent area, and red alder, Himalayan blackberry, western red cedar, and Pacific willow in the forested area. Soils: Soils in the eastem portion of the wetland are characterized by a dark grayish brown (10YR 4/2) sandy loam extending to 10 inches deep, over a subsoil layer of olive gray (5Y 5/2) loam with dark yellowish brown (10YR 4/4) mottles. Soils in the western portion of the wetland are a very dark grayish brown (10YR 3/2) silty clay loam extending to 6 inches deep, over a subsoil layer of very dark gray (2.5Y 3/1) clay loam with dark yellowish brown (10YR 4/4) mottles. Hydrology. Soils are saturated to the surface in both test pits. Large areas of standing water are present elsewhere in the wetland. Wetland Classification: Wetland 0.3R is a PFO wetland that is seasonally inundated. It is a Category III under Ecology's rating system and a Type 2 under the City of Tukwila's sensitive areas regulations. Wetland Functional Assessment. Primary functions of Wetland 0.3R are flood flow alteration, sediment removal, nutrient and toxicant removal, and production and City of Tukwila: Wetlands Sensitive Area Study May 2006 3-4 export of organic matter. The wetland receives road runoff, contains dense herbaceous and deciduous vegetation, and has a surface water connection to Gilliam Creek. Additionally, the wetland has fine- grained mineral soils and large depression areas. Wetland Determination: The boundary of Wetland 0.3R was flagged where indicators of wetland vegetation, hydric soil, and wetland hydrology were present. These corresponded to the base of the fill for adjacent roads or topographical changes. Adjacent uplands were distinguished from the wetland by the lack of soil saturation or hydric soil indicators, and the presence of upland plant species. Wetland 0.4L Size and location: The 0.11 -acre wetland is located southeast of the Southcenter Boulevard /61st Avenue South intersection. Wetland 0.4L is a long, narrow ditch adjacent to 1-405 southbound lanes. Vegetation: Dominated by reed canarygrass, common cattail, and bentgrass. Soils: An A horizon of black (5Y 2.5/2) loamy sand extending to 4 inches deep, over a B horizon of light olive gray (5Y 6/2) sand with yellowish brown (10YR 5/6) mottles. The soil below 8 inches was too compact to sample. Hydrology. Saturated soil at the surface with free water within 3 inches of the surface in the soil pit. Wetland Classification: Wetland 0.4L is a ditch- associated PEM wetland that is seasonally saturatedlinundated. It is a Category IV under Ecology's rating system and a Type 3 under the City of Tukwila's sensitive areas regulations. Wetland Functional Assessment: The primary function of Wetland 0.4L is sediment removal. The wetland receives road runoff and contains dense herbaceous vegetation. Wetland Determination: The boundary of Wetland 0.4L was flagged where indicators of wetland vegetation, hydric soil, and wetland hydrology were present. These corresponded to the base of fill for adjacent roads and topographic changes. Adjacent uplands were distinguished from the wetland by the lack of soil saturation or hydric soil indicators, and the presence of upland plant species. Wetland 0.5L Size and location: The 0.05 -acre wetland is located between Southcenter Boulevard and southbound 1-405. The wetland is a long, narrow ditch that is situated adjacent to 1 -405 southbound lanes. Vegetation: Dominated by reed canarygrass and soft rush. Soils: Soils in the wetland consist of an A horizon, extending from the surface to 10 inches deep, of a black (10YR 2/1) sandy loam. The B horizon extends from 10 to 16 inches deep and is a dark gray (Gley 1 4/1) gravely loamy sand with yellowish brown (10YR 5/8) mottles. Hydrology. Soils were saturated at the surface and free water was present within 4 inches of the surface of the soil pit. Wetland Classification: Wetland 0.5L is a PEM ditch - associated wetland that is seasonally saturated /inundated. It is a Category IV wetland under Ecology's rating system and a Type 3 under the City of Tukwila's sensitive areas regulations. City of Tukwila: Wetlands Sensitive Area Study May 2006 3 -5 Wetland Functional Assessment: The primary functions of Wetland 0.5L are sediment removal and nutrient and toxicant removal. The wetland receives stormwater runoff, contains dense herbaceous vegetation, and water is exported via an unconstricted surface water outlet. Wetland Determination: The boundary of Wetland 0.5L was flagged where indicators of wetland vegetation, hydric soil, and wetland hydrology were present. These corresponded to the base of fill for adjacent roads and topographic changes. Adjacent uplands were distinguished from the wetland by the lack of soil saturation or hydric soil indicators. Wetland 0.6L Size and location: The 0.17 -acre wetland is located southwest of the Christensen Road /Southcenter Boulevard intersection situated between Southcenter Boulevard and southbound 1-405. Wetland 0.6L is a long ditch that receives water from stormwater runoff and precipitation. It is associated with an unnamed tributary of Gilliam Creek. Vegetation: Dominated by reed canarygrass, black cottonwood, willow, soft rush, and Himalayan blackberry. Soils: Soils in the wetland consist of an A horizon, extending from the surface to 10 inches deep, comprised of a dark gray (10YR 4/1) loamy sand with dark yellowish brown (10YR 3/6) mottles. The B horizon, extending from 10 to 16 inches deep, is a loamy sand with a dominant brown (10YR 4/3) and subdominant dark greenish gray (Gley 1 4 /5GY) soil matrix with dark yellowish brown (10YR 3/6) mottles. Hydrology. Soils were saturated at the surface and free water was present within 4 inches of the surface of the soil pit. Standing water was present in a large portion of the wetland. Wetland Classification: Wetland 0.6L is a PSS wetland that is seasonally saturated. It is a Category 111 under Ecology's rating system and a Type 3 under the City of Tukwila's sensitive areas regulations. Wetland Functional Assessment. Primary functions of Wetland 0.6L are sediment and toxicant removal and production and export of organic matter. The wetland contains dense shrub and herbaceous vegetation and has a surface water connection to a stream. Wetland Determination: The boundary of Wetland 0.6L was flagged where indicators of wetland vegetation, hydric soil, and wetland hydrology were present. These corresponded primarily to the base of fill for adjacent roads and topographical changes. Adjacent uplands were distinguished from the wetland by the lack of hydric soil indicators and the presence of upland plant species. Wetland 0.9R Size and location: The 1.01 -acre wetland is located south of the southbound interchange of SR -181 from 1 -405 and receives highway stormwater runoff. The wetland includes a large area of open water. Vegetation: The area immediately adjacent to the open water is dominated by Himalayan blackberry, with spikerush, black cottonwood, and reed canarygrass occurring near the open water edges. City of Tukwila: Wetlands Sensitive Area Study May 2006 3 -6 Soils: An Al horizon of (10YR 2/1) sandy loam extends 2 inches deep, over an A2 horizon of (2.5Y 3/2) sandy loam with brown (10YR 4/4) mottles. Below 10 inches, the B horizon consists of sandy loam (2.5Y 4/4) containing cobbles and sand with brown (10YR 4/2) mottles. Hydrology: Saturated soils to the surface and free water present within 8 inches of the surface of the soil pit. The wetland open water area contained standing water several feet deep. Wetland Classification: Wetland 0.9R is a palustrine open water (POW) wetland that is seasonally inundated. It is a Category III wetland under Ecology's rating system and a Category 2 under the City of Tukwila's critical areas regulations. Wetland Functional Assessment: Primary functions of Wetland 0.9R are flood flow alteration, sediment removal, and wildlife habitat. This wetland provides the majority of functions evaluated under Null et al. (2000). The wetland receives road runoff and contains aquatic vegetation, and its location near the Green River corridor provides adequate wildlife habitat. Wetland Determination: The boundary of Wetland 0.9R was flagged where indicators of wetland vegetation, hydric soil, and wetland hydrology were present. These corresponded to changes in topography. Adjacent uplands were distinguished from the wetland by the presence of upland plant species and change in topography. Wetland 0.94L Size and location: The 0.48 -acre wetland is located north of Southcenter Boulevard, west of Interurban Avenue South, and east of the Green River. The wetland is located in a mitigation site that was constructed in the upland and exports water directly to the Green River. Vegetation: Dominated by red -osier dogwood, bluegrass, and red alder with smaller amounts of black cottonwood and thistle. Soils: A surface layer of black (10YR 2/1) silty loam extending to 3 inches deep, over a subsoil layer of brown (10YR 4/3) silty loam. Hydrology. Soils were not saturated in the soil pit. Some areas of standing water are present in the wetland. Wetland Classification: Wetland 0.941 is a PSS wetland that is seasonally saturated. It is a Category III wetland under Ecology's rating system and a Type 2 under the City of Tukwila's sensitive areas regulations. Wetland Functional Assessment Primary functions of Wetland 0.94L are production and export of organic matter, as well as sediment and toxicant removal. The wetland receives road runoff from inletting culverts and exports water via a surface water connection to the Green River. Downed wood was present as a result of beaver activity; however, it did not appear to be recent. Wetland Determination: The boundary of Wetland 0.941 was flagged where indicators of wetland vegetation, hydric soil, and indicators of wetland hydrology were present. These corresponded primarily to the base of fill for adjacent roads and topographical changes. Adjacent uplands were distinguished from the wetland by the lack of wetland hydrology indicators and the presence of upland plant species. City of Tukwila: Wetlands Sensitive Area Study May 2006 3 -7 3.2.2 Wetland Rating and Classification Summary Table 3 -2 provides a summary of the wetland ratings identified in the wetland descriptions and identifies local wetland buffer requirements. Table 3 -2 Wetland Ratings, City of Tukwila PAB - Palustrine Aquatic Bed; PEM — Palustrine Emergent; rt u — Palustrine rureste , Scrub -Shrub 3.2.3 Wetland Functions and Values Summary Table 3 -3 summarizes the wetland functional assessment for each wetland as determined on the functional assessment data sheets (Appendix B). Many of the nine wetlands within the entire study area are small (less than one -third acre). Generally, larger wetlands in the study area are typically located in flat, low -lying areas. The smaller wetlands tend to be located in small closed topographic depressions, or are hydrologically connected (linked to or associated with a water source) to hillside seeps or roadside drainage ditches. Due to their size and topographic location, larger wetlands within the study area are more likely to provide a higher number and higher value of beneficial functions than smaller wetlands. The study area is located within the Urban Growth Area, with most of the study area comprised of existing road ROW. All of the wetlands within the study area have been disturbed to some extent by development, including the construction of 1-405 and commercial or residential development in the surrounding area. Consequently, the wetlands are compromised in their ability to provide functions and values. More than one -half of the wetlands were found to have the potential to provide valuable stormwater management functions including: flood flow alteration, sediment removal, nutrient and toxicant removal, and erosion control. Some of these areas have constricted outlets and dense woody vegetation, slowing floodwaters during storm events. Most wetlands have dense herbaceous vegetation that can remove sediment and toxicants present in road runoff. City of Tukwila: Wetlands Sensitive Area Study May 2006 3 -8 • `` INetlarid�� . Identifier L ; :: Areas: �: (acres )' = ` i '1A,41 ` d jt K , COWafdln ',_ •Classification ' t Washington f �' State ti �T t ;: -Ratirig i L . � ' (Ecology) � ' i _ _ 1 , . ' ;; Local Jurisdlctlon , . nd. Rating �„ a.: Locai.°; _ Jurisdiction • x . 154001?; 3 Requirement:,::;.. - (feet )! :: ' ` Identified on , LocaLocal..., , . Jurisdiction Wetland t . Inventory? 0.15R 0.52 PEM III Tukwila -2 80 Y 0.1R 0.05 PEM IV Tukwila -3 50 50 N N 0.25M 0.07 PEM IV Tukwila -3 0.3R 1.29 PFO III Tukwila -2 80 Y 0.4L 0.11 PEM IV Tukwila -3 50 N Tukwila -3 50 N 0.5L 0.05 PEM IV 0.6L 0.17 PSS IV Tukwila -3 50 N 0.94L 0.48 PSS III Tukwila -2 80 N 0.9R 1.01 PAB III Tukwila -2 80 N TOTAL 1 3.75 d. ncc n,i.,�►r;.,p 3.2.2 Wetland Rating and Classification Summary Table 3 -2 provides a summary of the wetland ratings identified in the wetland descriptions and identifies local wetland buffer requirements. Table 3 -2 Wetland Ratings, City of Tukwila PAB - Palustrine Aquatic Bed; PEM — Palustrine Emergent; rt u — Palustrine rureste , Scrub -Shrub 3.2.3 Wetland Functions and Values Summary Table 3 -3 summarizes the wetland functional assessment for each wetland as determined on the functional assessment data sheets (Appendix B). Many of the nine wetlands within the entire study area are small (less than one -third acre). Generally, larger wetlands in the study area are typically located in flat, low -lying areas. The smaller wetlands tend to be located in small closed topographic depressions, or are hydrologically connected (linked to or associated with a water source) to hillside seeps or roadside drainage ditches. Due to their size and topographic location, larger wetlands within the study area are more likely to provide a higher number and higher value of beneficial functions than smaller wetlands. The study area is located within the Urban Growth Area, with most of the study area comprised of existing road ROW. All of the wetlands within the study area have been disturbed to some extent by development, including the construction of 1-405 and commercial or residential development in the surrounding area. Consequently, the wetlands are compromised in their ability to provide functions and values. More than one -half of the wetlands were found to have the potential to provide valuable stormwater management functions including: flood flow alteration, sediment removal, nutrient and toxicant removal, and erosion control. Some of these areas have constricted outlets and dense woody vegetation, slowing floodwaters during storm events. Most wetlands have dense herbaceous vegetation that can remove sediment and toxicants present in road runoff. City of Tukwila: Wetlands Sensitive Area Study May 2006 3 -8 tiler We lland [den ti l ilt ulPo3' llmeHmia Nutrient and Toxicant Removal '' Erosion Control and Shoreline Stabilization Production and Export of Organic. - Matter I Habitat for Aquatic invertebrates Habitat for Wetiand- _Associated Mammals H abitat for Wetland- Associated`Birds ! tetigH R u J C sseuoni ;told sagged ' Educational or Scientific Value 1 1 BDOI H pue eseuenbiun 0.15R 1 0.52 PEM ✓ ✓ i i i i i 0.1R L PEM 4 � G_._.. - —� ^0.0 0.25M I 0.07 PEM 1 —_.. ....__`-- ..____..�._....._.._.. ____. 0.3R 1 1.29 PFO ✓ ✓ I ✓ 0.4L 0.11 PEM 0.5L i 0.05 PEM > X ' X, 0.6L 1 0.17 PSS 0.94L I 0.48 PSS 0.9R j 1.01 , PAB ✓ TOTAL 1 3.75 1 These wetlands may have diverse vegetation, seasonal or permanent open water, or have evidence of wildlife use such as dens, tracks, scat, or gnawed stumps. Two of the wetlands we general value as fish habitat (Wetlands UK and u.3R). Wetland 0.94L is likely to provide richness. None of the other wetlands are likely ;s or heritage value because they do not contain any listed plant or wildlife species, and are not considered bogs or estuary wetlands. The wetlands in the r in WSDOT ROW or extend onto privately owned properties, which educational and recreational uses. PAB - Palustrine Aquatic Bed; PEM - Palustrine Emergent; PFO - Palustrine Forested; PSS - Palustrine Scrub -Shrub ✓ = function likely provided by this wetland X = function considered a primary function City of Tukwila: Wetlands Sensitive Area Study Table 3-3 Wetland Functions and Values May 2006 3 -9 4.0 Impacts During the course of the Project, all or portions of five of the nine wetlands in the City of Tukwila will be filled or temporarily disturbed. Of the 0.18 acres of wetland impacts in the corridor (Table 4 -1 and Table 4 -2), approximately 0.15 acres will be permanently filled or graded to construct road improvements and 0.03 acres will be temporarily disturbed. 4.1 Permanent Impacts Permanent direct impacts would result from WSDOT filling 0.15 acres of wetland to construct new facilities, diverting or re- directing surface runoff that would be necessary to support wetland hydrology, or filling such a high percentage of the area of a wetland that the remaining area would not function at pre - construction levels (Table 4 -1). 4.2 Temporary Impacts Temporary impacts produce short-term Toss of wetland functions during construction and for up to 5 years following construction. They do not, however, result in a permanent Toss of wetlands after the Project is completed because disturbed vegetation or wetland hydrology will eventually be re- established. Approximately 0.03 acres of wetlands would be temporarily disturbed during construction activities, including vegetation clearing and the placement of fill material (Table 4 -1). The extent of short-term degradation would vary depending on the intensity of the temporary impact. Wetlands where the vegetation is cleared or trimmed would still retain some water quality and quantity function, although at a diminished level. Filled wetlands would provide no beneficial functions until they were restored. Wetlands temporarily impacted during construction would be restored to their pre- existing conditions following the completion of work and it is anticipated that they would return to a functioning state within 5 years. 4.3 Functions and Values Overall, the wetlands within the project study area are lower value wetlands related to habitat functions because of their proximity to and association with 1-405. Their primary function is to improve water quality and abate the effects on downstream waters from stormwater flows. Therefore, the temporary and permanent impacts to wetlands in the project area will primarily result in a loss of the stormwater management functions provided by these wetlands. Because of the implementation of stormwater BMPs as part of the Project, stormwater quality will be significantly improved for the corridor as a whole, but wetland loss will reduce the flood water desynchronization, sediment removal, nutrient and toxicant removal, and erosion control functions provided by the impacted wetlands. The Project will also result in a reduction of habitat functions provided by wetland areas, and those habitat functions will not be mitigated through stormwater treatment and detention or other water quality BMPs. Therefore, compensatory wetland mitigation will be implemented primarily for impacts to wetland habitat. City of Tukwila: Wetlands Sensitive Area Study May 2006 4 -1 Permanently d or I Wetland Size, Othe Wetland j in Right of i Disturbed Name/ID : { Way Area (if) TeFmporariilled or, ly ' Otherwise $ Disturbed i , Ecology , Area (sf ` Rati Local Juri and Rating Tukwila -3 Tukwila -3 0.4L 'i 4,670 ! 3,348 63 i IV 0 I IV 0.5L 1,805 1,805 0.6L 7,379 32 276 + I IV Tukwila -3 0.9R__ 1 43,697 1 187 _ - 293 Ill 632 Tukwila -2 _ TOTAL ; — 57,551 5,372 0.15R 0.52 0.1R 0.05 0.25M - - - - -- - 0.07 Table 4 -1 Filled or Disturbed Wetlands, City of Tukwila Permanently Filled or. Otherwise Disturbed Area (acres) 0.3R 1 1.29 0.4L 0.11 0.5L 0.6L 0.17 0.94L 0.48 0.9R 1.01 0.01 TOTAL t 3.75 City of Tukwila: Wetlands Sensitive Area Study Temporarily Filled or Otherwise Disturbed Area (acres) Ecology Rating) IV Tukwila -3 ._ IV T— _ Tukwila -3 r__..__-- ._ -.__ -_ III .__.____ Tukwila -2 0.08 1 0.01 IV Tukwila -3 0.05 0.05 IV Tukwila -3 0.01 0.01 IV Tukwila -3 III Tukwila -2 i 0.01 III Tukwila -2 0.15 0.03 Table 4 -2 Summary of City of Tukwila Impacted Wetland Area Local Jurisdiction and Rating III Tukwila -2 ' Table includes information for impacted wetlands only. An additional five wetlands were delineated within the City of Tukwila but will not be affected by the Project. May 2006 4 -2 5.0 Recommendations Throughout the design process, WSDOT has identified several opportunities to avoid or minimize impacts to wetlands and their buffers. The most common avoidance and minimization measures included moving stormwater facilities and requiring retaining walls to reduce the extent of fill necessary to construct the road improvements. The overall Project footprint has been reduced to the greatest extent in areas near wetlands to reduce or eliminate adverse impacts. 5.1 Avoidance and Minimization Measures The following avoidance and minimization measures have been incorporated into the Project design to allow WSDOT to meet the transportation improvement challenge without directly affecting important natural resources: • All wetlands are to be avoided where practicable. • Associated facilities, such as stormwater treatment systems and access roads, are to be located outside of the identified sensitive areas where practicable. • The Project footprint is to be minimized. • Operational analysis will allow Project designers to use existing shoulders or access lanes, thereby reducing the need to extend the road prism. Specific avoidance and minimization measures are identified in Table 5 -1. Table 5 -1 Avoidance and Minimization Measures Permanently Filled or . ;Temporarily Filled Otherwise or Otherwise Wetland j Area 1 Disturbed Area Disturbed Area Identifier (acres) 1 (acres) (acres) ` Avoidance and Minimization Avoided 0.15R j 0.52 I 0.1R 0.05 I Avoided 0.25M 0.07 r _- _ -__ -- .__ -._ _. -�_�_ ': Avoided 0.3R — _ 1.29 - , Avoided r — ' Unavoidable due to roadway design standards. 0.01 Retaining wall not viable due to safety concerns. Unavoidable due to roadway design standards. Retaining wall not viable due to safety concerns. 0_01 Unavoidable due to roadway design standards. 0.6L 0.17 0.01 0.94L ' 0.48 — - 0.9 R 1.01 0.01 0.01 TOTAL 3.75 0.15 0.03 0.4L I 0.11 ! 0.08 0.5L 0.05 0.05 Avoided Stormwater outfall designed to minimize impacts to wetland. City of Tukwila: Wetlands Sensitive Area Study May 2006 5-1 5.2 Mitigation Sequence In accordance with CEQ regulations, mitigation sequencing includes: 1. Avoidance measures that eliminate the onset of impacts. 2. Minimization measures proposed to decrease the magnitude or severity of the impact. 3. Rectification measures that are part of the Project and repair or restore resources. 4. Reduction or elimination measures that soften the impacts. 5. Compensation measures designed to offset unavoidable adverse impacts. 6. Monitoring measures that become part of the Project to ensure that resources are not further degraded by the Project. City of Tukwila: Wetlands Sensitive Area Study May 2006 5-1 6.0 Preliminary Compensatory Mitigation WSDOT, in partnership with the City of Renton is developing a mitigation bank called the Springbrook Creek Wetland and Habitat Mitigation Bank ( Springbrook Bank). Mitigation banking is one early- action approach identified in the 1 -405 Corridor Final Environmental Impact Statement (FEIS) and the Project is part of WSDOT's watershed approach to wetland mitigation. By consolidating the mitigation into one large site, WSDOT has the opportunity to work with a panel of resource agency representatives to create mitigation that specifically contributes aquatic ecosystem functions that are lacking in the local watershed while providing safe, high - quality wildlife habitat away from the dangers of a roadside location. This approach will be used as the wetland mitigation for unavoidable impacts to wetlands within the Springbrook Bank service area, which includes the 1-405 corridor area from the 1-405 and 1 -5 intersection north to the northern city limits of Renton. Therefore, the 0.15 acres of permanent impacts to wetlands for the Project will be compensated with credits from the Springbrook Bank. The Springbrook Wetland Mitigation Banking Instrument (MBI) was developed to determine the mitigation ratios to be used at the Springbrook Bank. The Wetland Mitigation Memorandum defines the wetland mitigation for the Project. City of Tukwila: Wetlands Sensitive Area Study May 2006 6 -1 7.0 References City of Tukwila. 2004. City of Tukwila Wetland/Watercourse Buffer Map. Dated July 15, 2004. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. Publ. # FWS /OBS- 79131. U.S. Fish and Wildlife Service. Ecology (Washington State Department of Ecology). 1997. Washington State Wetlands Identification and Delineation Manual. Publication No. 96 -94. Olympia, WA. Washington State Department of Ecology. Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual. Technical Report Y -87 -1. Vicksburg, MS. U.S. Army Engineer Waterways Experiment Station. Franklin, J.F. and C.T. Dymess. 1988. Natural vegetation of Oregon and Washington. Oregon State University Press, Corvallis, OR. Hruby, T. 2004. Washington State Wetland Rating System for Western Washington - Revised. Washington State Department of Ecology Publication No. 04 -06 -025. Olympia, WA: King County. 1990. King County Sensitive Areas Map Folio. NRCS (United States Department of Agriculture, Natural Resources Conservation Service). 1995. Hydric Soils of the State of Washington. Washington, DC. Null, W.S., G. Skinner, and W. Leonard. 2000. Wetland Functions Characterization Tool for Linear Projects. Olympia, WA: Washington State Department of Transportation Environmental Affairs Office. www.wsdot.wa.gov/ environment /biologv /docs/bpitool.pdf Snyder, D.E., P.S. Gale, and R.F. Pringle. 1973. Soil Survey of King County Area, Washington. Washington, DC. U.S. Soil Conservation Service. USFWS (United States Department of Interior, U.S. Fish and Wildlife Service). 1987. National Wetland Inventory, Des Moines Quadrangle. USFWS (United States Department of Interior, U.S. Fish and Wildlife Service). 1988. National Wetland inventory, Mercer Island Quadrangle. WSDOT (Washington State Department of Transportation). 2004. Environmental Procedures Manual M31 -11 Volume 1 and 2. Olympia, WA. WSDOT Environmental Affairs, Engineering Publications. City of Tukwila: Wetlands Sensitive Area Study May 2006 7 -1 City of Tukwila: Wetlands Sensitive Area Study Appendix A: Common and Taxonomic Names of Plants Observed in the Study Area May 2006 A r > Comniot� Nan _ .` ` • Sctenttfic Name ' • i• WIS' TREES _ _ _ FACU big -leaf maple Acer macrophyllum bitter cherry Prunus emarginata FACU' black cottonwood Populus balsamifera FAC cascara Rhamnus purshiana FAC - Douglas -fir Pseudotsuga menziesii FACU' mountain ash Sorbus aucuparia NL one - fruited hawthorn Crataegus monogyna ORN Oregon ash Fraxinus latifolla FACW Pacific crabapple Malus fusca FACW Pacific madrona Arbutus menzeisil NL paper birch Betula papyrifera FAC` quaking aspen Populus tremula FAC red alder Alnus rubra FAC Sitka spruce Picea sitchensis FAC westem hemlock Tsuga heterophylla FACU - westem red cedar Thuja plicata FAC SHRUBS beaked hazelnut Corylus comuta FACU black hawthom Crataegus douglassi FAC black raspberry Rubus leucodermis NL black twin -berry Lonicera involucrate FAC +' clustered rose Rosa pisocarpa 1 FAC currant Ribes spp. FAC -FAC+ devil's club Oplopanax homdus 1 FAC+ Douglas' spiraea Spiraea douglasil � FACW English holly Ilex aquifolium I NL English ivy Hedera helix ; NL evergreen blackberry Rubus lacinlatus FACU Himalayan blackberry Rubus discolor I FACU honeysuckle Lonicera spp. i 1 FACU -FAC Hooker's willow Salix hookeriana 1 FACW- huckleberry Vaccinium spp. i NL -OBL Indian plum Oemleria cerasiformis FACU Table A -1 Plant Species List for the Project Wetlands Study City of Tukwila: Wetlands Sensitive Area Study May 2006 A -1 lie44 ,' , . • ‘:;: '1 "nunoONaniei: '.. :.,' , . - - • - „ ,, - .. Scientific Name „ , - , . . , '. . fl.. WIS' •" long-leaved Oregon grape Berberis nervosa NL Nootka rose Rosa nutkana FAC NL ocean spray Holodiscus discolor Pacific blackberry Rubus ursinus FACU Pacific ninebark Physocarpus capitatus FACW- Pacific willow Salix lasiandra FACW+ red elderberry red huckleberry Sambucus racemosa Vaccinium parvifolium FACU NL red-osier dogwood Comus stolonifera I FACW salal Gaultheria shailon , FACU* salmonberry Rubus spectabilis FAC+ scotchbroom Cytisus scoparius NL Scoulees willow Salix scouleriana FAC Sitka willow Salix sitchensis FACW snowberry Symphoricarpos albus FACU tall Oregon grape Berberis aquifolium NL thimbleberry - Rubus parviflorus FAC- vine maple Acer circinatum FAC- western snowberry i_ Symphoricarpos occidentalis Salix alba NI FACW white willow HERBS American brooklime Veronica americana I OBL American vetch Vicia americana NI American waterlily Nymphaea odorata OBL aster Aster spp. NL-OBL bedstraw Galium spp. UPL-FACW+ birdsfoot-trefoil Lotus comiculatus FAC bitter nightshade Solanum dulcamara FAC+ bracken fem Pteridium aquilinum FACU bull thistle Cirsium vulgare FACU buttercup Ranunculus spp.. NL-OBL ... Canadian goldenrod Solidago canadensis r- FACU Canadian thistle Cirsium arvense FACU+ catchweed bedstraw Galium aparine • FACU coltsfoot Petasites spp. FAC-FACW City of Tukwila: Wetlands Sensitive Area Study Table A-1 Plant Species List for the Pro ect Wetlands Study May 2006 A-2 Common Nam common cat -tail common groundsel common plantain common shepards' purse common speedwell common St. John's wort common tansy common vetch common yarrow Cooley's hedge - nettle cow parsnip creeping buttercup cress curly dock dandelion deer fem dock duckweed English ivy English plantain false lily -of- the - valley field horsetail fireweed foamflower forget - me-not foxglove giant horsetail hairy cats -ear horsetail Japanese knotweed lady fem large -leaf avens licorice fem mint mustard City of Tukwila: Wetlands Sensitive Area Study Table A -1 Plant Species List for the Project Wetlands Study • $ U6ntific Name;' Typha latifolia Senecio jacobaea Plantago major Capsella bursa pastoris Veronica officinalis Hypericum perforatum Tanacetum vulgare Vida sativa Achilles millefolium Stachys cooleyae Heracleum lanatum Ranunculus repens FACW Rorippa spp. 1 FAC + -OBL Rumex crispus FAC+ Taraxacum off)cinale f FACU Blechnum spicant FAC+ Rumex spp. FAC -OBL Lemna minor OBL i Hedera helix NL Plantago lanceolate Maianthemum dilatatum Equisetum arvense Epilobium angustifolium Tiarella trifoliate Myosotis spp. i Digitalis purpurea Equisetum telmateia Hypochaeris radicata Equisetum spp. Polygonum cuspidatum Athyrium f►lix- femina Geum macrophyllum Polypodium glycyrrhiza Mentha spp. Brassica campestris OBL FACU FACU+ FACU NL NL , NI LNL FACU I NL FAC+ FAC FAC FAC FACU+ FAC- FAC-FACW FACU' FACW NL FAC -OBL FACU' FAC FACW-* NL FAC -OBL NL 8 1 May 2006 A -3 r . C ommon. Name,!' . Sclentiflc Name. W19� oxeye -daisy Chrysanthemum leucanthemum NL Pacific bedstraw Gallum cymosum FACW Pacific bleedingheart Dicentra formosa FACU* Pacific silverweed Potentilla anserina OBL pearly everlasting Anaphalis margaritacea NL pig -a- back -plant Tolmiea menziesii FAC* pineapple weed Matricaria matricarioides FACU pondweed Potamogeton spp. , OBL purple loosestrife Lythnjm sallcaria FACW+ red clover Trifolium pretense FACU FACW scouring horsetail Equisetum hyemale sheep sorrel Rumex acetosella FACU+ skunk cabbage Lysichitum americanum OBL smartweed Polygonum spp. FACU -OBL speedwell Veronica spp. Sphagnum spp. NL -OBL NL sphagnum moss spreading bentgrass Agrostis stolonifera FAC+ stinging nettle i Urtica dioica j FAC+ strawberry Fragaria virginiana � NL sweet coltsfoot Petasites frigidus L FACW- sword fem Polystichum munitum FACU thistle Cirsium spp. I FACU -OBL -1-- vetch Vicia spp. i NI -NL water cress Rorippa nastursium - aquatica i NL water parsley 1 Oenanthe sarmentosaa i OBL water starwort i Callitriche spp. I OBL Watson's willow -weed I Epilobium watsonii I FACW- western St. John's wort Hypericum formosum j FAC - white clover ! Trifolium repens FAC' GRASSES, RUSHES, AND SEDGES bluegrass , Poa spp. NL -FACW bulrush Scirpus spp. OBL colonial bentgrass Agrostis tenuis FAC common spike -rush 1Eleochads pa!ustris OBL common timothy Phleum pretense FAC- City of Tukwila: Wetlands Sensitive Area Study Table A -1 Plant Species List for the Project Wetlands Study May 2006 A -4 • Common Name Scientific Name • WISI common velvetgrass Holcus lanatus FAC creeping velvetgrass Holcus mollis Carex deweyana Poa palustris FACU* f FACU* FAC Dewey's sedge fowl bluegrass hardstem bulrush I Scirpus acutus OBL Kentucky bluegrass Poa pratensis FAC mannagrass GIyceria spp. FACW + -OBL meadow foxtail Alopecurus pratensis FACW orchard -grass L Dactylis glomerate FACU perennial ryegrass Lolium perenne r FACU quackgrass Agropyron repens L_ FAC- red fescue Festuca nibra FAC+ reed canarygrass Phalaris arundinacea FACW rush Juncus spp. FAC -OBL sedge ( Carex spp. j FAC -OBL slough sedge _ Carex obnupta I OBL small- fruited bulrush Scirpus microcarpus i OBL soft rush Juncus effusus I FACW spike -rush i- E!eocharis spp. FACW -OBL spreading bentgrass r Agrostis stolonifera ; FAC+ tall fescue Festuca arundinacea FAC - tall mannagrass +— Glyceria elate FACW+ wheatgrass Agropyron spp. j FACU -FAC City of Tukwila: Wetlands Sensitive Area Study Table A -1 Plant Species List for the Project Wetlands Stud W etland Indicator Status OBL (Obligate): species almost always occur in wetlands under natural conditions (estimated probability is greater than 99 percent). FACW (Facultative wetland): species usually occur in wetlands (estimated probability is 67 to 99 percent), but are occasionally found in non - wetlands. FAC (Facultative): species equally likely to occur in wetlands or non - wetlands (estimated probability is 34 to 66 percent). FACU (Facultative upland): species usually occur in non - wetlands (estimated probability is 67 to 99 percent), but are occasionally found in wetlands. UPL (Upland): species almost always occurring in non - wetlands under normal conditions (estimated probability is greater than 99 percent). IVL (Not listed): species not listed and presumed to be upland species. + = indicates a species more frequently found in wetlands. - = indicates a species less frequently found in wetlands. = identifies a tentative assignment based on either limited information or conflicting reviews. May 2006 A -5 City of Tukwila: Wetlands Sensitive Area Study Appendix B: Wetland Data Sheets Wetland Delineation Forms Functional Assessment Forms Wetland Rating Forms May 2006 8 r � ATTACHMENT 7 Design Geotechnical Memorandum RECEIVED MAY 2 3 2006 COMMA. •. Y DEVELOPMENT INTERSTATE1 405 Corridor Program Congestion Relief & Bus Rapid Transit Projects DESIGN GEOTECHNICAL MEMO By A.F. Stirbys, I -405 Lead Geotech Subject I -405, I -5 to SR- 169 – Renton Nickel Improvement Project Geotechnical Issues —Green River Area 600 — 108th Avenue NE, Suite 405 Bellevue, WA 98004 Main 425 -456 -8500 Fax 425 -456 -8600 May 23, 2006 It is understood that the I -405 lane expansion under the Christensen Road bridge area will involve removal of some of the slope pavement, soil excavation, and construction of a short (4- to 5 -foot high) retaining wall. The proposed "limit of construction" for this construction activity will be a minimum of approximately 80 feet from the banks of the Green River. To this end, the proposed construction activity within the proposed limits will not destabilize the banks of the Green River. AFS T: \Environmental (Project Level)\South_Renton_Nickel\12- Permitting \Tukwila shoreline permit (Final)Wttachment 7 (Geo -tech Memo)\Design Geo -tech statement.doc ATTACHMENT 8 Tree Mitigation Memorandum RECEIVED IMAY 2 3 2006 COMMUNI1 DEVELOPMENT I NTERSTATE'\ 405 Corridor Program Congestion Relief & Bus Rapid Transit Projects TREE MITIGATION MEMO 600 – 108th Avenue NE, Suite 405 Bellevue, WA 98004 Main 425- 456 -8500 Fax 425- 456 -8600 May 23, 2006 By Terry Drochak, Permit Coordinator Subject I -405, I -5 to SR- 169 – Renton Nickel Improvement Project —City of Tukwila, Sensitive Areas Special Studies Review This memorandum, in conjunction with the Wetland Sensitive Area Study and Wetland Mitigation Memorandum, shall serve to demonstrate compliance with the City of Tukwila's Sensitive Areas Ordinance and Tree Regulations (TMC 18.54). The impacts to trees within the City of Tukwila as part of the I -405, I -5 to SR -169– Renton Nickel Improvement Project (Project) are minimal and will be more than offset by planting trees at the wetland mitigation site for the Project. The areas being impacted by minor roadway widening are predominantly vegetated by grasses and some shrubs. No trees within the shoreline zone will be impacted by the Project. Few or no trees are expected to be impacted within sensitive areas or sensitive area buffers by the Project. Four wetlands will be permanently impacted by the Project, as depicted in the Wetland Sensitive Area Study. A copy of the Wetland Sensitive Area Study that is included in the City of Tukwila application package describes the unavoidable permanent impacts to wetlands within Tukwila. The Wetland Mitigation Memorandum outlines the wetland mitigation proposed to compensate for those wetland impacts. As discussed with Nora Geirloff and Carol Lumb during a meeting about this Project on February 27, 2006, the Project proposes to plant native trees at the wetland mitigation site, which will ensure compliance with the City of Tukwila Tree Ordinance (TMC 18.54). Tree Replanting Summary The objectives of Springbrook Wetland and Habitat Mitigation Bank (Springbrook Bank) are to re- establish 17.79 acres of wetland, rehabilitate 52.22 acres of wetland, enhance 32.59 acres of wetland, and enhance 7.80 acres of upland and 6.55 acres of riparian upland and 9.7 acres of buffer enhancement adjacent to Springbrook Creek for a total of 126.65 acres. The proposed restoration and enhancement activities will re- connect floodplain wetlands with Springbrook Creek, re- establish historical wetlands, and improve water quality, hydrologic, floodplain, habitat, and riparian functions in a highly urbanized area. Washington State Department of Transportation (WSDOT) anticipates using its credits from Springbrook Bank for transportation projects within the service area. The functional improvements at the Springbrook Bank site are outlined in sections 2.6 and 2.7 of the Mitigation Banking Instrument (MBI). The Springbrook Bank objectives are described in more detail in section 3 of the MBI. As part of the wetland re- establishment, and rehabilitation and enhancement activities at the Springbrook Bank site, significant numbers of native tree species are proposed to be planted. The amount of mitigation credits debited from the Springbrook Bank for wetland impacts within Tukwila (see Wetland Sensitive Area Study) will more than offset any trees removed in Tukwila as part of the Project, particularly since few or no trees are expected to be removed by the Project. The following is a brief summary of tree planting amounts that will occur at the Springbrook Bank site. Though a more detailed description of the Springbrook Bank restoration concepts can be found in section 2.6 of the MBI, a summary is provided below. Also, a complete list of shrub and trees species to be planted at the Springbrook Bank site is located in Table 2 -1 of the MBI. Mitigation Units A and B A total of 51.10 acres of wetland rehabilitation will occur on Units A and B. A total of 2,500 native trees and shrubs per acre will be installed within planting areas. Woody species appropriate for the various hydroperiods will be planted as containerized and/or bare -root stock including: Oregon ash, red -osier dogwood, Sitka and Pacific willows, and peafruit wild rose. Containerized Sitka spruce, western red cedar, Oregon ash, black cottonwood, and Pacific ninebark will be planted on the constructed hummocks. A total of 0.17 acres of wetland re- establishment will occur on Units A and B. Native trees and shrubs will be installed at a density of 2,500 stems per acre including: Oregon ash, red -osier dogwood, Sitka and Pacific willows, and peafruit wild rose. A total of 2.13 acres of riparian upland enhancement will occur on Units A and B. Scouler's willow, big -leaf maple, red alder, Sitka spruce, Douglas -fir, and snowberry will be planted at a density of 1,500 stems per acre. A total of 6.09 acres of protection setback area will be created on Units A and B. Protection setback plantings in uplands will include Douglas -fir, big -leaf maple, serviceberry, oceanspray, beaked hazel, and snowberry at 1,500 stems per acre. Protection setback plantings in wetlands will include Oregon ash, red -osier dogwood, Sitka and Pacific willows, and peafruit wild rose at 2,500 stems per acre. Mitigation Unit C A total of 9.27 acres of wetland re- establishment will occur on Unit C. This area will be planted with native trees and shrubs at 2,500 stems per acre. The wetter bottom area (below the 16 -foot contour) will be planted with Oregon ash, red -osier dogwood, Sitka and Pacific willows, and peafruit wild rose. Fringe wetland areas (between the 16 -foot and 20 -foot contours) will be planted with Pacific ninebark, black twinberry, Oregon ash, black cottonwood, Sitka willow, and Nootka rose. T:\Environmental (Project Level)\south_Renton_Nickel \12- Permitting \Tukwila shoreline permit (Final)\Attachment 8 (Tree Mitigation Memo)1Tree Mitigation Memorandum.doc 2 A total of 1.06 acres of wetland rehabilitation will occur on Unit C. Conifer under - plantings will include Sitka spruce, western hemlock, and western red cedar at a density of 100 stems per acre. A total of 23.23 acres of forested wetland enhancement will occur on Unit C. Sitka spruce, western hemlock, and western red cedar will be planted in existing forested wetland areas at a density of 100 trees per acre. A total of 4.69 acres of wetland enhancement will occur on Unit C. Nootka rose, red - osier dogwood, Sitka spruce, black cottonwood, red alder, Scouler's willow, and western red cedar will be installed at 2,500 stems per acre. A total of 7.80 acres of upland enhancement will occur on Unit C. Douglas -fir, big -leaf maple, serviceberry, oceanspray, beaked hazel, and snowberry will be planted at 1,500 stems per acre in upland areas. Mitigation Unit D A total of 7.80 acres of forested wetland enhancement will occur on Unit D. Sitka spruce, western hemlock, and western red cedar will be used for under - planting in the forested wetlands, at a density of 100 trees per acre. The area disturbed in constructing the storm sewer pipe will be planted with 2,500 stems per acre of Oregon ash, red -osier dogwood, Sitka and Pacific willows, and peafruit wild rose. Mitigation Unit E A total of 8.35 acres of wetland re- establishment will occur on Unit E. The wetter bottom area (below the 10 -foot contour) will be planted with Oregon ash, red -osier dogwood, Sitka and Pacific willows, and peafruit wild rose. Fringe wetland areas (between the 10- and 12 -foot contours) will be planted with Pacific ninebark, black twinberry, Oregon ash, black cottonwood, Sitka willow, and Nootka rose. Areas above the 12 -foot contour will be planted with red -osier dogwood, Sitka spruce, black cottonwood, Nootka rose, Scouler's willow, and western red cedar. Woody plants will be installed as live stakes, bare -root, and/or containerized stock at a density of 2,500 woody stems per acre. A total of 4.42 acres of riparian upland enhancement will occur on Unit E. Scouler's willow, big -leaf maple, red alder, Sitka spruce, Douglas -fir, and snowberry will be installed in areas lacking woody vegetation in the riparian enhancement area at 1,500 plants per acre. Under - plantings in existing deciduous forest will include Sitka spruce, western hemlock, and western red cedar. A total of 100 plants per acre will be installed in those areas. A total of 1.98 acres of protection setback area will be created on Unit E. Native woody plantings will be installed at a density of 1,500 stems per acre. Species to be planted include Douglas -fir, big -leaf maple, serviceberry, oceanspray, beaked hazel, and snowberry. T:\Environmental (Project Level)\south_Renton_Nickel \l2- Permitting \Tukwila shoreline permit (Final)Wttachment 8 (Tree Mitigation Memo) \Tree Mitigation Memorandum.doc 3 Tree Mitigation Conclusion No trees within the Green River shoreline zone will be impacted by the Project. Few or no trees within sensitive areas or sensitive area buffers are expected to be impacted by the Project. Wetlands that will be impacted by the Project are predominantly vegetated by grasses and some shrubs. The Project proposes mitigation at the Springbrook Bank, which includes the planting of thousands of coniferous and deciduous native trees in its design. Therefore, any impacts to trees within the City of Tukwila as part of the Project will be adequately mitigated through the tree planting at the Springbrook Bank. The survivability of the tree plantings will be guaranteed through best management practices (BMPs) and the success criteria established for the Springbrook Bank in the MBI. Reference Washington State Department of Transportation (WSDOT). 2006. Springbrook Creek Draft Final Wetland and Habitat Mitigation Bank: Mitigation Bank Instrument. March 1, 2006. T:\Environmental (Project Level)\South_ Renton _Nickel \l2 - Permitting \Tukwila shoreline permit (Final)\Attachment 8 (Tree Mitigation Memo) \Tree Mitigation Memorandum.doc 4 ATTACHMENT 10 CAO Application Checklist RECEIVED (MAY 2 3 2006 COMMUNITY DEVELOPMENT Check items submitted with application Information Required. May be waived in unusual cases, upon approval of both Public Works and Planning APPLICATION MATERIALS: X 1. Application Checklist one (1) copy, indicating items submitted with application. N/A 2. Permit Fee (LDR = $200, Other zones = $300). X 3. Written description of the project, the deviation being requested and response to the applicable decision criteria. ZONING CODE PARKING DEVIATION N/A 4. A complete description of the proposed construction relative to parking areas, and all supporting agreements. N/A 5. Dimensional site plan(s) to demonstrate parking area consistent with Zoning Code requirements. N/A 6. Parking studies as needed to demonstrate adequate parking is provided. LANDSCAPE DEVIATION N/A 7. Landscape plan - two (2) copies showing size and species of existing and proposed plant materials, required perimeter landscape types, parking areas, buildings, walkways, transit facilities, property lines, dimensions and area of planting beds and any calculations necessary to demonstrate compliance with review criteria. TREE REGULATION DEVIATION X 8. Tree survey showing size and species of existing trees, with trees to be removed and trees to be retained noted (unless request is for use of canopy cover method) X 9. Tree replacement calculations per TMC 18.54.130.3 B or canopy cover calculations per TMC 18.54.140 B. X 10. Description of the nature of the undue hardship caused by strict compliance with the Tree Regulations, proposed mitigation measures and justification for the deviation from Tree Regulations. COMPLETE APPLICATION CHECKLIST The materials listed below must be submitted with your application unless specifically waived in writing by the Public Works Department and the Department of Community Development. Please contact the Department if you feel that certain items are not applicable to your project and should be waived, or should be submitted in a later timely manner for use at the Public Hearing (e.g., revised colored renderings). Application review will not begin until it is determined to be complete. ADDITIONAL MATERIALS MAY BE REQUIRED. The initial application materials allow starting project review and vesting the applicant's rights. However, they in no way limit the City's ability to require additional information as needed to establish consistency with development standards. Department staff are available to answer questions about application materials at 206 -431 -3670. COMPLETE APPLICATION CHECKLIST TABLE Check items submitted with application Information Required. May be waived in unusual cases, upon approval of both Public Works and Planning SENSITIVE AREA ORDINANCE ADMINISTRATIVELY APPROVED USES OR DEVIATIONS X 11. Site Plan - two (2) copies showing all buildings, parking areas, walkways, property lines, planting areas, sensitive areas, their buffers and setbacks. X 12. Sensitive area studies and enhancement plans to justify a requested buffer or setback reduction and demonstrate that the reduction will not result in a direct or indirect or long - term adverse impact to the sensitive area. A written response must be provided to the Review Criteria set forth in TMC 18.45.080 and/or TMC 18.45.100, attached at the end of this application packet. X 13. For Administratively Approved Uses, address relevant criteria for proposed use per TMC 18.45.070 B., 18.45.090 B. or 18.45.110 B. or C. SIGN CODE APPROVAL/DEVIATION N/A 13. Complete "Permanent Sign Permit Application" with all supporting materials and fees ($100). N/A 14. The following information should be provided on the plans: • North arrow, title, scale and date; • Vicinity map showing location and names of adjacent roads; • Property lines; • Locations of all buildings on site; • Dimensioned elevations of building drawn to scale (for wall signs); • Elevations, dimensions and materials of proposed sign(s) including advertising copy; • Color elevation of proposed sign. Written justification for the requested sign code deviation also must be provided. CARGO CONTAINER APPROVAL N/A 15. Site plan showing the location of the container(s) in relationship to parking areas, property lines, buildings, streets, trails, landscape areas and setbacks. N/A 16. Description of the proposed screening. N/A 17. Dimensions of proposed cargo container. RESIDENTIAL ROOF PITCH N/A 18. Roof lower than 5:12 pitch in residential zones - see new TMC 18.50.055 (attached) ATTACHMENT 11 CAO Application and Affidavit RECEIVED MAY 2 3 2006 COMMUNITY DEVELOPMENT FOR STAFF USE ONLY Sierra Type: P -SP Planner: File Number: Application Complete (Date: ) Project File Number: Application Incomplete (Date: ) Other File Numbers: Name: Allison Ray Signature: CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3670 FAX (206) 431 -3665 E -mail: tukplan @ci.tukwila.wa.us SPECIAL PERMISSION DIRECTOR APPLICATION NAME OF PROJECT/DEVELOPMENT: I - 405, I - to SR -169— Renton Nickel Improvement Project LOCATION OF PROJECT/DEVELOPMENT: Give street address or, if vacant, indicate lot(s), block and subdivision, access street, and nearest intersection. LIST ALL TAX LOT NUMBERS. The I -405, I -5 to SR- 169 — Renton Nickel Improvement Project (the Project) spans from I -5 are not available. The portion of the project within the City of Tukwila's Shoreline Zone is located at the 1 -405, Green River crossing, an area that has no address. Quarter: Section: 23 Township: 23N Range: 4E (This information may be found on your tax statement.) DEVELOPMENT COORDINATOR: The individual who: • has decision making authority on behalf of the applicant in meetings with City staff, • has full responsibility for identifying and satisfying all relevant and sometimes overlapping development standards, and • is the primary contact with the City, to whom all notices and reports will be sent. Address: I -405 Project Office, 600 108th Avenue NE, Suite 405, Bellevue, WA 98004 Phone: 425 456 -86.10 FAX: (425) 456 -8600 Date: May 23, 2006 STATE OF WASHINGTON COUNTY OF KING CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3670 FAX (206) 431 -3665 E - mail: tukplan@ci.tukwila.wa.us AFFIDAVIT OF OWNERSHIP AND HOLD HARMLESS 7. Non - responsiveness to a City information request for ninety (90) or more days, shall be cause to cancel the applications) without refund of '�V0 9.11 ?10(Y EXECUTED at (atyl , V r 1 (state) on f Allison Ray PERMISSION TO ENTER PROPERTY as The undersigned being duly sworn and upon oath states as follows: 1. 1 am the current owner of the property which is the subject of this application. 2. All statements contained in the applications have been prepared by me or my agents and are true and correct to the best of my knowledge. 3. The application is being submitted with my knowledge and consent 4. Owner grants the City, its employees, agents, engineers, contractors or other representatives the right to enter upon Owners real property, located at the 1 -405. Green River crossing for the purpose of application review, for the limited time necessary to complete that purpose. 5. Owner agrees to hold the City harmless for any loss or damage to persons or property occurring on the private property during the City's entry upon the property, unless the loss or damage is the result of the sole negligence of the City. 6. The City shall, at its discretion, cancel the application without refund of fees, if the applicant does not respond to specific requests for items on the "Complete Application Checklist" within ninety (90) days. (Print Name) 1-405 Proiect Office. 600 108th Avenue NE. Suite 405. Bellevue. WA 98004 (Address) 14251456 -8610 (Phone N c (Signature) On this day personally appeared before mJ ` `J 56Y‘ to me known to be the individual who executed the foregoing instrument and aclmowledged that he /she signed the same as his /her voluntary act and deed for the Wes and purposes mentioned therein. SUBSCRIBED AND SWORN T 7 O BEFORE ME ON THIS , 7 Y ! / t D A Y OF ' \ 1 2-12)b ea, -k- `.111111111//1�oi NOTARY PUBLIC ' ` � J � . 1.. . wn � � • residing at 6C et‘ `,/{5,s `,/{5,s My Commission expires on ' C - v2 in I Z ?�p c- p 1 f . / , NO r T:\Envf �r roject Level)\South_Renton_Nickel \12- Permitting \Tukwila shoreline permit (Final)\Attachment 11 (CAO Application) \CAO Application and affidavitdoc 2 and for the State of Washington ATTACHMENT 12 Sensitive Areas Memorandum RECEIVED MAY 2 3 2006 COMMUNITY DEVELOPMENT Corridor Program Congestion Relief & Bus Rapid Transit Projects SENSITIVE AREAS REVIEW MEMO 600 — 108th Avenue NE, Suite 405 Bellevue, WA 98004 Main 425- 456 -8500 Fax 425- 456 -8600 May 23, 2006 By Joseph Pursley, Permit Coordinator Subject I -405, I -5 to SR- 169 – Renton Nickel Improvement Project —City of Tukwila, Sensitive Areas Special Studies Review Introduction I -405, I -5 to SR- 169 – Renton Nickel Improvement Project (Project) improvements include a combination of pavement widening and lane re- striping to create additional north and southbound general purpose and auxiliary lanes, bridge replacements, improvements to the SR -167/I -405 interchange, and reconfiguration of the stormwater drainage system. Impacts to aquatic resources (wetlands and streams) will occur from highway widening and reconfiguration of the stormwater drainage system. Impacts will include permanent and temporary impacts to wetlands, and permanent and temporary impacts to wetland and stream buffers. See Attachment 3 – JARPA Drawings and Attachment 6 – Wetland Sensitive Area Study included with this submittal. The proposed Project is permitted by Tukwila Municipal Code (TMC) 18.45.070; however, a proposed new stormwater outfall into Wetland 0.9L (Nelson side channel) is subject to administrative review (TMC 18.45.070(B)). Highway widening involves cutting into banks and filling depressions within the highway prism. In some locations, fill will be placed in wetlands to widen the highway and to accommodate related highway infrastructure. The proposed stormwater drainage system for existing and new impervious surfaces includes stormwater collection and treatment facilities. The stormwater collection facilities include drainage ditches and pipes, ecology embankments, detention facilities, and flow control structures. Impacts to aquatic resources will be related to grading and filling activities. One outfall from a new stormwater facility will be placed in Wetland 0.9L (Nelson side channel). Since Wetland 0.9L is subsurficially connected to the hydrology of the Green River, the proposed outfall discharge will not adversely affect the water level fluctuations in Wetland 0.9L or the Green River. Temporary Impacts Up to three wetlands may be temporarily impacted during construction. Temporary impacts include the potential cutting or crushing of vegetation within these areas during construction. Temporary impact areas will either remain at or be restored to preconstruction elevations and vegetation will be restored to preconstruction conditions, as necessary. Temporary impacts to the three wetlands will total 0.03 acres. Temporary impacts will also occur to three wetland buffers totaling 0.16 acres. Impacts will occur from construction of stormwater facilities and highway widening. Temporary impacts will not occur to streams within the City of Tukwila. Temporary impacts will occur to two stream buffers totaling 1.0 acres. Impacts will occur from construction of stormwater facilities, utility protection, and highway widening. Permanent Impacts Permanent impacts will occur to four wetlands totaling approximately 0.15 acres. One wetland will be completely filled and three will be partially filled. Impacts will occur as a result of a stormwater facility and highway widening. Avoidance and Minimization Washington State Department of Transportation (WSDOT) will use Best Management Practices (BMPs), Standard WSDOT Procedures and Specifications, and design elements to avoid or minimize potential effects to the environment. The following general avoidance and minimization measures will be used: • WSDOT will utilize a commitment tracking system to identify all commitments made during Endangered Species Act (ESA) consultation, National Environmental Policy Act (NEPA) /State Environmental Policy Act (SEPA), design, and permitting. All Project commitments will be clearly communicated in the Request for Proposals (RFP) to the Design- Builder, who will in turn communicate commitments to Project office staff and supporting design offices. Commitments will be tracked throughout the various stages of the Project delivery. • The Design- Builder will be required to prepare and implement an Environmental Compliance Plan (ECP) and assign an Environmental Compliance Manager (ECM). • Prior to the start of construction, all sensitive areas and clearing limits will be marked with high visibility construction fencing, and erosion control devices will be placed to prevent runoff of sediment into wetlands and streams. The Design- Builder will also show environmental commitments on plan sheets when applicable. • Impacts to wetlands and streams will be minimized during construction through the use of temporary erosion and sediment control BMPs. The Design- Builder will be required to prepare and implement a Temporary Erosion and Sedimentation Control (TESC) Plan and Spill Prevention Control and Countermeasures (SPCC) Plan in accordance with the Highway Runoff Manual, environmental commitments, and contract requirements. • All washwater and concrete -laden water associated with construction will be treated to meet state of Washington surface water quality standards (Chapter 173 -20IA Washington Administrative Code [WAC]) prior to discharge into surface waterbodies. WSDOT and the Design- Builder will provide assurance that all long -term compliance expectations are passed along to the appropriate responsible parties. T:1Environmental (Project Level)\ South_ Renton _Nicket1l2 - Permitting \Tukwila shoreline permit (Final)1Attachment 12 (Sensitive Areas Memo)1Sensitive Areas memo.doc 2 7. . BMT Mitigation The Springbrook Creek Wetland and Habitat Mitigation Bank (Springbrook Bank) will provide adequate mitigation credits necessary to compensate for unavoidable permanent impacts up to 0.15 acres of wetlands and 0.16 acres of wetland buffers resulting from the Project. See Attachment 6 — Wetland Sensitive Area Study and Attachment 13 — Wetland Mitigation Memorandum for a description on how mitigation will work with the Springbrook Bank. Temporary impacts to wetlands, and wetland and stream buffers, will be restored to preconstruction elevations. Hydrology and vegetation will be restored with native plantings where applicable. T: \Environmental (Project Leve l) \ South_ Renton _Nicke1\12- Permitting\Tukwila shoreline permit (Final)\Attachment 12 (Sensitive Areas Memo)\Sensitive Areas memo.doc 3 ATTACHMENT 13 Wetland Mitigation Memorandum RECEIVED IMAY 2 3 2006 COMMUNITY DEVELOPMENT I11TERSTATC\ Corridors Program Congestion Relief & Bus Rapid Transit Projects WETLAND MITIGATION MEMO By Terry Drochak Subject I -405, I -5 to SR 169 Project Wetland Mitigation Memorandum 600 — 108th Avenue NE, Suite 40; Bellevue, WA 98004 Main 425 - 456 -850( Fax 425 -456 -860( May 23, 2006 This memo contains information that corresponds to the submitted JARPA drawings, Wetland Biology Report, and the Mitigation Bank Instrument (MBI). These documents should be used as references for the review of this memo. Wetland impacts within The City of Tukwila and The City of Renton are discussed in this memo. Existing Conditions of Impacted Wetlands The seven wetlands that may receive temporary or permanent impacts associated with fill from the 1-405, 1 -5 to SR 169 Project are listed below by wetland number. Existing conditions (i.e., size, location, vegetation, soils, and hydrology) of each wetland are based on field visit observations and wetland delineation forms completed during field visits related to the Wetland Biology Report. Existing conditions and functions of impacted wetlands can also found in Table 1. 1 TOTAL 7.70 Table 1 Existing Functions of Impacted Wetlands i c a y ..1 u'� E- a 10H c :u o.— mot. s L go Zft;w O o 2 Vi 0.4L 0.11 PEM IV X ✓ ( ✓ 0.5L 0.05 I PEM IV X X j ✓ ✓ ✓ 0.6L r 0.17 PSS IV ✓ X X � ✓ ✓ ✓ 0.9R 1.01 PAB III X X ✓ I X ✓ ( X 1.7R 0.46 PSS III X X ✓ I X ✓ _.. . � .�._____..__._.__ __ -. -- --- _.__ ...._.__..... __.__ __.._.___....._...._..__._._... ..._..._._. .___...._... __ .............. _.._ 2.6L 0.02 PEM IV X X _ 25.0L 5.88 PSS I I I X X X 1 ✓ X 1 - 1 ✓ ✓ ✓ X PEM - Palustrme Emergent; PSS - Palustrine Scrub- Shrub; PAB - Palustrine Aquatic Bed ✓= function likely provided by this wetland X = function considered a primary function Wetland 0.4L Size and location: The 0.11 -acre wetland is located southeast of the Southcenter Boulevard /61st Avenue South intersection. Wetland 0.4L is a long, narrow ditch bordered by a steep slope to the north and 1-405 southbound lanes to the south. Vegetation: Dominated by reed canarygrass, common cattail, and bentgrass. Soils: An A horizon of black (5Y 2.5/2) loamy sand extending to 4 inches deep, over a B horizon of light olive gray (5Y 6/2) sand with yellowish brown (10YR 5/6) mottles. The soil below 8 inches was too compact to sample. Hydrology. Soils were saturated at the surface with free water within 3 inches of the surface in the soil pit. Wetland 0.4L receives runoff from the surrounding slope and roadway, and discharges to an upland ditch. Wetland 0.5L Size and location: The 0.05 -acre wetland is located between Southcenter Boulevard and southbound 1 -405. Wetland 0.5L is a long, narrow ditch bordered by a steep slope to the north and 1 -405 southbound lanes to the south. Vegetation: Dominated by reed canarygrass and soft rush. Soils: Soils in the wetland consist of an A horizon, extending from the surface to 10 inches deep, of a black (10YR 2/1) sandy loam. The B horizon extends from 10 to 16 inches deep and is a dark gray (Gley 10Y 4/1) gravely loamy sand with yellowish brown (10YR 5/8) mottles. Hydrology. Soils were saturated at the surface and free water was present within 4 inches of the surface of the soil pit. Wetland 0.5L receives runoff from the surrounding slope and roadway, and discharges to an upland ditch. Wetland 0.6L Size and location: The 0.17 -acre wetland is located southwest of the Christensen Road /Southcenter Boulevard intersection situated between Southcenter Boulevard and southbound 1-405. Wetland 0.6L is a long, narrow ditch bordered by a steep slope to the north and 1-405 southbound lanes to the south. It is associated with an unnamed tributary of Gilliam Creek. Vegetation: Dominated by reed canarygrass, black cottonwood, willow, soft rush, and Himalayan blackberry. Soils: Soils in the wetland consist of an A horizon, extending from the surface to 10 inches deep, comprised of a dark gray (10YR 4/1) loamy sand with dark yellowish brown (10YR 3/6) mottles. The B horizon, extending from 10 to 16 inches deep, is a loamy sand with a dominant brown (10YR 4/3) and subdominant dark greenish gray (Gley 5GY 4/1) soil matrix with dark yellowish brown (10YR 3/6) mottles. Hydrology Soils were saturated at the surface and free water was present within 4 inches of the surface of the soil pit. Standing water was present in a large portion of the wetland. Wetland 0.6L receives runoff from the surrounding slope and roadway, and discharges to Gilliam Creek via a culvert. Wetland 0.9R Size and location: The 1.01 -acre wetland is located south of the southbound interchange of SR 181 from 1-405. Wetland 0.9R includes a large area of open water and aquatic bed communities, and is surrounded by a steep slope. Vegetation: Area immediately adjacent to the open water is dominated by Himalayan blackberry with spikerush, black cottonwood, and reed canarygrass occurring near the open water edges. Soils: An Al horizon of (10YR 2/1) sandy loam extends 2 inches deep, over an A2 horizon of (2.5Y 3/2) sandy loam with brown (10YR 4/4) mottles. Below 10 inches, the B horizon consists of sandy loam (2.5Y 4/4) containing cobbles and sand, with brown (10YR 4/2) mottles. Hydrology: Soils were saturated to the surface and free water was present within 8 inches of the surface of the soil pit. The wetland open water area contained standing water several feet deep. The major sources of hydrology to Wetland 0.9R include highway stormwater runoff, groundwater, and precipitation. The wetland has no surface water outlet. Wetland 1.7R Size and location: The 0.46 -acre wetland is adjacent to the 1-405 northbound lanes, between Oakesdale Avenue SW and Lind Avenue SW. Wetland 1.7R is a very long, narrow ditch that is bordered by 1-405 to the north and commercial development to the south. Vegetation: Dominated by reed canarygrass and Pacific willow. 3 Soils: A surface layer of very dark gray (2.5Y 3/1) silt loam with organic material, over a subsoil layer, occurring below 6 inches, of dark gray (5Y 4/1) silty clay loam with dark yellowish brown (10YR 4/6) mottles. Hydrology No saturation was observed in the soil pit; however, saturation is expected in the growing season due to the presence of hydric soil and oxidized roots. Ponded water was observed elsewhere in the wetland. Wetland 1.7R receives runoff from adjacent roads and developments, and discharges to a catch basin. Wetland 2.6L Size and location: The 0.02 -acre wetland is located adjacent to the 1-405 off ramp to north SR 167. Wetland 2.6L is a narrow depression /ditch that is bordered by 1-405 to the south and commercial development to the north. Vegetation: Dominated by reed canarygrass, common velvetgrass, and Himalayan blackberry. Soils: An A horizon of black (10YR 2/1) sandy loam extends 11 inches deep. Below 11 inches is a B horizon of greenish gray (Gley 5GY 5/1) clay loam with dark yellowish brown (10YR 4/4) mottles. Hydrology. Saturated soils and free water were present at the surface of the soil pit. Wetland drainage patterns were also observed. Wetland 2.6L receives road and parking lot runoff, and discharges to Rolling Hills Creek. Wetland 25.0L Size and location: The 5.88 -acre wetland is adjacent to SR 167, between 1-405 and SW 41st Street. Wetland 25.0L is a long depression that is bordered by SR 167 to the east and commercial development to the west. Vegetation: Dominated by black cottonwood, Pacific willow, Himalayan blackberry, and reed canarygrass. Soils: Soils in the southern portion of the wetland are an A horizon of very dark grayish brown (10YR 3/2) sandy clay loam with cobbles extending to a depth of 9 inches, over a B horizon of dark grayish brown (10YR 4/2) sandy clay loam with yellowish brown (10YR 5/8) mottles. Hydrology. Soils were saturated to the surface in soil pits. Areas of standing water were present throughout the wetland. The major sources of hydrology to Wetland 25.0L are surface runoff from adjacent development and precipitation. The wetland is connected, via culvert, to the larger Panther Creek wetland complex east of SR 167. Avoidance and Minimization of Wetland Impacts Table 2 lists wetland avoidance and minimization measures taken by the 1-405 Project design team, and identifies why potential impacts to individual wetlands were unavoidable. Permanent and temporary impacts to wetlands can be seen in the revised JARPA permit plans, which are included as an attachment to the May 8, 2006, letter to Ecology from Allison Ray. 4 Wetland Identifier Area (acres) Permanently Filled or Otherwise Disturbed Area (acres) Temporarily Filled or Otherwise Disturbed Area (acres) Avoidance and Minimization 0.4E 0.5L 0.6L 0.9R 1.7R 2.6L 25.0E _________ TOTAL 0.11 0.05 0.17 1.01 0.46 0.08 0.01 - 0.01 0.01 - - T 0.56 .__...__.___— 0.59 Unavoidable due to roadway design standards. Retaining wall not viable due to safety concerns. Unavoidable due to roadway design standards. Retaining wall not viable due to safety concerns. Unavoidable due to roadway design standards. Stormwater outfall designed to minimize impacts to wetland. Unavoidable due to roadway design standards and to avoid im_pacts to local business. Unavoidable due to roadway design standards. A retaining wall will be constructed along the entirety of this wetland to avoid and minimize impacts. A new ecology embankment will need to be constructed that will extend the wall an additional 10 feet to the west. This additional 10 feet is required to meet the flow (head) requirements to allow the ecology embankment to function properly. 0.05 0.01 0.01 0.46 0.02 0.02 5.88 _ ___ .__. 7.70 0.99 _.____._._ ._._ _._.___— 1.62 Table 2 Avoidance and Minimization Measures Unavoidable Wetland Impacts Wetlands that will be impacted by the Project are listed and classified in Table 3 under four different classification systems: Cowardin (Cowardin et al.1979), Ecology (Ecology 1997), local, and Hydrogeomorphic (HGM). Wetlands were classified during field visits and wetland delineations using the respective rating form. 5 Table 3 Potential Impacts to Wetlands by Classification PEM - Palustrine Emergent; PSS - Palustrine Scrub- Shrub; PAB - Palustrine Aquatic Bed 2 NR - Non - regulated. City of Renton Category 3 wetlands less than 2,200 square feet are exempt from regulation under Renton Municipal Code (RMC) Critical Areas Regulations (RMC 4 -3 -50 B[7]). City of Tukwila wetlands that are 1,000 square feet and less that do not meet any wetland rating criteria are exempt from requirements of the Tukwila Municipal Code (TMC) Chapter 18.45 (TMC 18.45.180A). s HGM classification is based on wetland rating forms (Western Washington region). Lost or Degraded Wetland Functions Wetland function was evaluated using the WSDOT Wetland Functions Characterization Tool for Linear Projects manual (Null et al. 2000) and was also assessed based on best professional judgment. In Table 1, wetland function is divided into 14 categories. These 14 categories can be used to assess what level of functional loss or degradation may occur to the impacted wetlands. Note that Table 1 shows existing functions of impacted wetlands -not lost or degraded functions. Proposed Mitigation Credits To fully compensate for 1.62 acres of unavoidable permanent impacts to wetlands from the Project, WSDOT proposes to debit 1.353 wetland mitigation credits from the Springbrook Creek Wetland and Habitat Mitigation Bank (Springbrook Bank) credit ledger. Section 2.7 of the MBI and, more specifically, Tables 2 -3, 2-4, 2 -5, and 2 -6 clearly identify the wetland functional improvements that will be made at the Springbrook Bank. These functional improvements will offset the loss of wetland area and functions that are identified in Table 1 of this memo. Wetlands temporarily impacted by construction activities (0.59 acres) will be restored to pre - construction conditions immediately after construction. Table 4 summarizes the credit withdrawal amounts for all wetlands permanently impacted by the Project. More detailed information about mitigation credit compensation ratios can found in Chapter 4 of the Mitigation Banking Instrument (MBI) (WSDOT 2006). 6 Permanently Filled or Otherwise Temporarily Filled or Otherwise Disturbed Disturbed. Local Wetland Area Wetland Area Wetland Area Cowardin Ecology Jurisdiction HGM Identifier (acres) (acres) (acres) Classificatlon Rating and Rating Classification 0.4L 0.11 0.08 0.01 PEM IV Tukwila -3 Depressional 0.5E 0.05 0.05 t - PEM IV Tukwila -3 Depressional 0.6L 0.17 0.01 0.01 PSS IV Tukwila -3 Depressional 0.9R 1.01 0.01 0.01 PAB III Tukwila -2 Depressional 1.7R 0.46 0.46 - PSS III Renton -3 Depressional 2.6L 0.02 0.02 - PEM IV Renton -NR Depressional 25.0E 5.88 0.99 0.56 PSS III Renton -3 I Depressional TOTAL 7.70 1.62 0.59 Table 3 Potential Impacts to Wetlands by Classification PEM - Palustrine Emergent; PSS - Palustrine Scrub- Shrub; PAB - Palustrine Aquatic Bed 2 NR - Non - regulated. City of Renton Category 3 wetlands less than 2,200 square feet are exempt from regulation under Renton Municipal Code (RMC) Critical Areas Regulations (RMC 4 -3 -50 B[7]). City of Tukwila wetlands that are 1,000 square feet and less that do not meet any wetland rating criteria are exempt from requirements of the Tukwila Municipal Code (TMC) Chapter 18.45 (TMC 18.45.180A). s HGM classification is based on wetland rating forms (Western Washington region). Lost or Degraded Wetland Functions Wetland function was evaluated using the WSDOT Wetland Functions Characterization Tool for Linear Projects manual (Null et al. 2000) and was also assessed based on best professional judgment. In Table 1, wetland function is divided into 14 categories. These 14 categories can be used to assess what level of functional loss or degradation may occur to the impacted wetlands. Note that Table 1 shows existing functions of impacted wetlands -not lost or degraded functions. Proposed Mitigation Credits To fully compensate for 1.62 acres of unavoidable permanent impacts to wetlands from the Project, WSDOT proposes to debit 1.353 wetland mitigation credits from the Springbrook Creek Wetland and Habitat Mitigation Bank (Springbrook Bank) credit ledger. Section 2.7 of the MBI and, more specifically, Tables 2 -3, 2-4, 2 -5, and 2 -6 clearly identify the wetland functional improvements that will be made at the Springbrook Bank. These functional improvements will offset the loss of wetland area and functions that are identified in Table 1 of this memo. Wetlands temporarily impacted by construction activities (0.59 acres) will be restored to pre - construction conditions immediately after construction. Table 4 summarizes the credit withdrawal amounts for all wetlands permanently impacted by the Project. More detailed information about mitigation credit compensation ratios can found in Chapter 4 of the Mitigation Banking Instrument (MBI) (WSDOT 2006). 6 Table 4 Mitigation Credit Debit Summary Table 0.4L 0.5L 0.6L ( 0.9R 1.7R 2.6L 25.0L TOTAL Total . . Wetland Area (acres) 0.11 0.05 0.17 1.01 0.46 0.02 5.88 7.70 Permanently Filled or Otherwise Disturbed Wetland Area (acres) 0.08 0.05 0.01 0.01 0.46 0.02 0.99 1.62 IV IV IV III Ili IV III Local and Rating Tukwila -3 Tukwila -3 Tukwila -3 Tukwila -2 Renton -3 Renton -NR Renton -3 Credit Required per Impact Acre 0.70 0.70 0.70 0.85 0.85 0.70 0.85 Bank Credi Debit Amount 0.0560 0.0350 0.0070 0.0085 0.3910 0.0140 0.8415 1.3530 'Graphical representations of project wetland impact areas are depicted in the I -405, I -5 to SR 169 Project JARPA drawings. 2 NR - Non - regulated. City of Renton Category 3 wetlands less than 2,200 square feet are exempt from regulation under RMC Critical Areas Regulations (RMC 4-3-5013E7]). City of Tukwila wetlands that are 1,000 square feet and less that do not meet any wetland rating criteria are exempt from requirements of the TMC Chapter 18.45 (TMC 18.45.180A). Springbrook Bank - Purpose, Goal, and Objectives Specific to the Project, the purpose of Springbrook Bank is to provide compensation for unavoidable impacts to wetlands and other aquatic resources caused by WSDOT highway construction projects within the service area. The service area of Springbrook Bank includes portions of Water Resource Inventory Areas (WRIAs) 8 and 9, which include the Lower Green River, Black River, West Lake Washington, East Lake Washington, May Creek, and Mill Creek Basins, and the Lower Cedar River Basin to SR 18. The service area is described in more detail in Chapter 1.3 of the MBI. The goals of Springbrook Bank are to increase wetland area; improve hydrologic, water quality, and habitat functions; improve fish refuge /rearing habitat; and promote environmental education. The objectives of Springbrook Bank are to re- establish 17.79 acres of wetland, rehabilitate 52.47 acres of wetland, enhance 33.40 acres of wetland, and enhance 7.80 acres of upland and 6.56 acres of riparian upland adjacent to Springbrook Creek for a total of 118.02 acres. The proposed restoration and enhancement activities will re- connect floodplain wetlands with Springbrook Creek, re- establish historical wetlands, and improve water quality, hydrologic, floodplain, habitat, and riparian functions in a highly urbanized area. WSDOT anticipates using its credits from Springbrook Bank within the service area. The functional improvements at the Springbrook Bank site are outlined in Chapters 2.6 and 2.7 of the MBI. Springbrook Bank objectives are described in more detail in Chapter 3 of the MBI. Credit Purchase and Timing Credits will be released from the Springbrook Bank according to Table 4 -3 of the MBI, provided that the Springbrook Bank demonstrates success in meeting the performance standards outlined in the MBI. The performance standard that must be met to release the initial 4.5 credits for use by the Project is not associated with achieving construction milestones or vegetation growth parameters. Instead, the performance standard associated with the initial credit release is the approval /signing of the MBI and recording of the conservation easement for the Springbrook Bank site. The credit release process, including performance standard milestones, is outlined in Chapter 4 of the MBI. When the performance standard allowing initial credit release is met, the Project team will provide this information to the Multi- Agency Permitting (MAP) Team members as either part.of the permitting process or as a condition of the issued permit(s), depending on the date of credit release. Criteria for Using Bank Credits For a project to use credits from the Springbrook Bank, the wetlands or aquatic resources impacted by the project must be located within the service area and meet the Springbrook Bank's purpose, goal, and objectives. The 1-405 Renton Nickel Improvement Project, 1 -5 to SR 169 is located entirely within the service area of the Springbrook Bank. In addition, the wetland mitigation needs of the Project, correspond with the purpose, goals, and objectives of the Springbrook Bank. Therefore, the Project meets all required criteria for use of Springbrook Bank credits for compensation of unavoidable permanent impacts to wetlands. 8 References City of Renton. 1992. Renton's Critical Areas Inventory. Prepared by Jones and Stokes. City of Tukwila. 2004. City of Tukwila Wetland/Watercourse Buffer Map. Dated July 15, 2004. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. Publ. # FWS /OBS- 79/31. U.S. Fish and Wildlife Service. Ecology (Washington State Department of Ecology). 1997. Washington State Wetlands Identification and Delineation Manual. Publication No. 96 -94. Olympia, WA. Washington State Department of Ecology. Null, W.S., G. Skinner, and W. Leonard. 2000. Wetland Functions Characterization Tool for Linear Projects. Olympia, WA: Washington State Department of Transportation Environmental Affairs Office. www.wsdot.wa.gov/environment/biology/docs/bpjtool.pdf. Washington State Department of Transportation (WSDOT). 2006. Springbrook Creek Wetland and Habitat Mitigation Bank: Mitigation Bank Instrument. Final Draft Dated March 1, 2006. Washington State Department of Transportation (WSDOT). 2006. 1-405, 1 -5 to SR 169, Renton Nickel Improvement Project: Wetland Biology Report. Final Dated May, 2006. 9 S ' = GIN LO G: -1 : 5 47 ST): 5'44" 44" MITIGATI ulIE FURRAM AVE. S INGBROOK GATION K RCELS WETLAND 0.1R WETLAND 0.15R WETLAND 0.25M WETLAND 0.3R WETLAND 0.4L WETLAND 0.5L WETLAND 0.8L WETLAND 0.9R WETLAND 1.7R V A S M I N O T O N S I PAIr3F4 PURPOSE: Roadway Improvements PROJECT LOCATION SiRAh^[P Pi v0 WETLAND 2.2R WETLAND 2.31R WETLAND 2.6L WETLAND 2.81L WETLAND 2.9L WETLAND 24.7R WETLAND 25.7L WETLAND 25.0L I-406,I4toSR1B9 SR187, I-406 to SW 41ST ST REFERENCED: 200600097 APPLICANT: WSDOT Key Map & Vicinity Map SUNSE PROPOSED/RETAIN: 1.7 acres of impala to wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4/26108 VICINITY MA 0. (SOU i iH): ONG: - 12213'02" LAT: 47 °26'36" 11,51 HORIZONTAL DATUM NAD es91 VERTICAL DATUM NAVD N SHEET 2 OF 27 z I PRING STREAM 09.GR -0.2 STREAM 09.GR -0.4 STREAM 09.GR -0.7 STREAM 09.DW-0.8 STREAM 09.13R -1.6 STREAM 09.SC -2.8 e STREAM 09.SC -2.8 STREAM 09.RH -2.6 STREAM 09.RH -2.6 STREAM 09.SC -2.8 OCk 11 12 13 14 15 5I STREAM 09.RH -3.0 STREAM 09.RH-3.0 STREAM 08.LW3.7 STREAM 09.SC-2.8 STREAM 09.SC -25.7 s 5 2 131 4 5 6 7 TD -2015L 18 TD -2117L TD -2035L 91 TD -2118L TD -2045R 10 TD -2118R TD -2047R 1111 TD -21191. TD -2050R 12 TD -2119R 1D -2054L 13 TD -2120R TD -2108L 1141 TD -2127L m 19 1 20 1211 TD -2128L TD -2148L TD -2158L TD -2155L TD -2159L TD-2182R TD -1065L liftlaal Tame fbrnt /naaiwal Tama Bra Roan Bair 0.4L 0.01 0.08 0 0.05 0.21 0.5L 0 0.05 0 0 0 l WETLAND IMPACTS (Ac) STREAM IMPACTS (of) ¶ Cottage i Creek r (Stieam;09:GC -0.4) . Wetland 0.4L Oh/ •0 - '_ PURPOSE: Roadway Improvements 09.OR -0.2 Tana 0 Awn 0 0 Tema &Oar 3974 10441 • Crs �� sns iq iE. a ' �- - - - ✓J •i1_ f� , ~ M. P- 0.50 C14 :_v t.' r Gilliam Creek (Stream 09.GR -0.2) Wetland 0.5L I.405,I.StoSR189 SR187,1-405 to SW 41ST ST REFERENCE 9: 200600097 APPLICANT: WSDOT PERMIT DRAWINGS sl . TUKWILA PKY PROPOSEDIRETAIN: 1.7 aces of impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4/28/08 :W Legend VWtlends \ I /, Uneuveyed wetlands O Proposed Sbmn attar Pond Proposed Storm Dram Proposed RglrbofWay ARM Easement Len EdstIg Drainage Culvert wtlh ID t ..c .....� Ptped Stream Culvert with ID ard dhedlon of flow —1. Flow Mow Exam Embankment Cross Section Lorton shown on D Sheet Crows Section direction on Detail Sheet .- -� T alent Ditch Open Channel Mourn — - - — Lbnlb of whrk • Existing stem Web Edstlrg Storm Manholes Existing Grab Inlet Proposed Wail Udedraln Existing Edge of Impervious Subm Proposed Edge of hnpeMous Su feoe Cut Line Flu One Mating Guardrail Permanent Wetland Impact Temp. Wetland Wiped Permanent Sheen hnped :9 Temp. Stream Impart Sheen and wetland • Buffer Nob: Not all legend elements we fond on evwy sheet within tits diming set KEY PLAN HORIZONTAL DATUM N1D 8391 VER71CAL DATUM NAVD 88 SHEET 3 OF 27 Same: IA43DOT :2004, KING COUNTY; 2004 I Lest Mme: 13157 PM 4l26l200e Note: Median of North Arrow at lower eight comer of this sleet. PURPOSE: Roadway Improvements Nose: Drawing legend is depicted on sheet S. Cottage Creek (Stream 09.GC-04 60 r" ▪ 40 0 z 20 H 0 dyes A 20061Cap SeM4pe000e0401Ld02.dpn EXISTING 0 GROUND 1 H X TEMP. WE TL AND I� BUFFER IMPACT PERMANENT WETLAND BUFFER IMPACT PERMANENT WETLAND IMPACT 1.406,14 TO 8R16S & SRI 67, 1406 TO SW 41ST ST REFERENCE ilk 200600097 APPUCANT: WSDOT PERMIT DRAWINGS WETLAND 0.4L 40 z 0 20 L a W PER MANENT WETLAND OFFER IMPACT PROPOSED GRADE SEE SHEET 3 FOR PLAN VIEW OF THIS SECTION 0 60 0 +00 0 +20 0 +40 0 +60 0 +80 1 +00 1 +20 (FT) SECTION 1 - MP. 0.46 PROPOSED/RETAIN: 1.7 acres of Impacts wetlands and other waters of the U.S. IN: Streams and Wetlands NEARIAT: Renton COUNTY: King STATE: WA DATE: 4/26/06 4c 01111111111113 40 Feet HORIZONTAL DATUM PROJECT VERTICAL DA1111k NAVD 88 SHEET 4 OF 27 PURPOSE: Roadway Improvements _ MATCH LINE SHEET 3 - ..- •.- --- .._.._.._.._.. -• -.. - , -- --j1 -r •*--•-----------•—••----- ._.._.._.._.._.._.._.._.._.._.. 09.D .1n 09.0R -0.2 STREAM IMPACTS (of) Nfo snd 0.61. I . I I , . , \ y , 1 : C:, ; ; 2 : Q\ t cp ` p \• VA \ t S 3^V Hj59 r CD 12. r . .\...., • — e o Terre 0 Tema 0.01 O 0 0 1 0 i MI $1 Tenet Aftkr 0.07 1 E.1. , • pp n ` �] s V \ ( 9 • t 1406, I-0 to SR189 R SR167,1406 to SW 41ST ST REFERENCE # 200600097 APPLICANT: WSDOT PERMIT DRAWINGS 11245 J 1 $ 13 g $ I t \, C G • kl • 0. 4 3 3bVd a3AOCNV — - - , • \\ \ - N. v.•• \ \ p v, t o \ \�1 V.E o ∎\ \. \ \.'\ �\ \ Z \\ •• \ k ^ ti \• t \ 3 - --..:- S •\ ,. ..... , ` • y� MATCH LINE SHEET 7 3 m . 03 6 `' \ •... . \\ GREEN RIVER ■ PROPOSED/RETAIN: 1.7 acme of Impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4/28/06 A • e 103 yy � \ r E F!� • HORIZONTAL DATUM HAD 8391 VERTICAL DATUM NAVD 88 SHEET 5 OF 27 El r °7 Do g F3 VI B 11 1 is HI II II 1 1 E 4 1 I (9 \ LJ 1 [ MO 11 ill i VI 11 f - 1,1 e wit 4 y lifgi 1 i i ll 1 1 / 'Erre, - ' 4-- --,IL Source: NMOOT; 2004, KM OUNT; 2004 I Lau Igdaloa 1:1532 PM 4/282006 I dtllat Sows v030011 2004, KING COUNTY: 2004 I Lest updeteit 1:5242 PM 4/,82006 I dues Note: Magian of North Aeyow at lower right comer of this sheet. PURPOSE: Roadway Improvements Note: Drawing legend is depicted on sheet 5. 60 c z a J m w r z 40 . D , - \ N z X z \ W 7, 20 -4 0 EXISTING GROUND WETLAND Q. 6L zz PERMANENT WETLAND BUFFER IMPACT H VS X W J 41 0 N PERMANENT WETLAND IMPACT TEMP. WETLAND IMPACT PROPOSED GRADE 0 +00 0 +20 0 +40 0 +60 0 +80 1 +00 1 +20 SECTION 2 - MP. 0.66 SEE SHEET 5 FOR PLAN VIEW OF THIS SECTION 60 r 40 O a 20 W J W 0 1 +40 (FT) 1.406,14 TO 8R169 & SR167, 1-406 TO SW 41ST ST 200 0697 APPLICANT: WSDOT PERMIT DRAWINGS PROPOSED/RETAIN: 1.7 acres of Impacts wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4/26/08 e 0 20 40 e Feet HOr1mONTAL DATUM PROJECT VERTICAL DMUst NAVD 88 SHEET 6 OF 27 PURPOSE: Roadway improvements MATCH UNE SHEET 6 ,.. 73. e,, . ..... .. N / o4, �Z ..k' / N q4` :m" I 7.- ; l s;, , °� \\"\\ I `e� ` I / / TI H06, la to SR169 & SR167, 1.406 to SW 41ST ST REFERENCE t 200600097 APPLICANT: WSDOT PERMIT DRAWINGS STREAM IMPACTS (of) N•rziA! 0.9 R ,_ tet as .........--••• \ ___ -- m g a •� I i ll I XI 9 \ O ` W ■ M \ 1 01 ` ` ` �� \ 1 �s , , . Tema Taft 0.01 PROPOSED/RETAIN: 1.7 acres of impacts to wetlands end other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4/26/08 101 mezzo. 0 ti cop ti $i) Perim Baler 0.19 0 100 200 w e Fed HORIZONTAL DAIIA! NAD 83191 VERTICAL DATUM NAVD e8 SHEET 7 OF 27 C7 A F3 F� ! 8 ii 5 $ 1 1 I f e 4 1 ee Ili! R. y I I 1 \// oa�q�qggQ @@Qs4,sa 163311 Ill i �8 (F. ° S YI 1 ' g ,L 1 lifli Fs i l o _ L' 1 • Ltie 'vp l Sour W S D O T , 2004, KING COUNTY; 2004 I pmt i d d 1:1143 PM 4rm/2006 I P1M1Enghim32000410nwtronUARPA 20051CO p SaMps000401:Lp4.dan Sourer WBOOC 2004, TONG COUNTY; 2004 I Lent updsist 1:3326 PIT 4l 2006 Note: Direction of North Arrow at right comer of this shoot. • (((( • • • Culvert Inlet 1 I dukes I PWABT2Ineer600041erNironUARPA 2006 p✓ eMp 0aaa�do6.4stn r y Y 1 r y ✓ 1 Note: Drawing legend is depicted on sheet 7. 60 z z m a PERMANENT WETLAND 60 BUFFER IMPACT - WETLAND < - 40 w 0.9R 40 EXISTING z z o - C GROUND 1 z \L 20 W - TEMP. WETLAND 20 w IMPACT W I I PERMANENT WETLAND 0 IMPACT 0 0 +00 0 +20 0 +40 0 +60 0 +80 (FT) SECTION 3 - MP. 0.86 SEE SHEET 7 FOR PLAN VIEW OF THIS SECTION PURPOSE: Roadway Improvements I-406,14 TO SR169 & SRI 87, 1-408 TO SW 41ST ST 2 � REFERENCE 097 APPLICANT: WSDOT PERMIT DRAWINGS PROPOSED/RETAIN: 1.7 acres of Impacts wetlands and other waters of the U.S. IN: Streams and ■stands NEAR/AT: Renton COUNTY: IGng STATE: WA DATE: 4/28108 + e A 0 20 40 Feet HORIZONTAL DATUIt PROJECT VERTICAL DATUM NAVO 86 SHEET 8 OF 27 11111111,59 ✓ ✓ ✓ r Y ✓ ✓ r r r r ✓ r ✓ r r r r r 1 ✓ 1 r ✓ r r i Y r "\ r r 1 Y r Y r 1 Y r r + Y r r r ✓ r r r Y I Y 1 F r I r ✓ I Y r r r ✓ r 1 y Y r r r y r r • • • r / Wetland 0.9R r ✓ Y • • • • • • • • • • 144)&swd Tema Asia /ndimo Tema Suffer Perm 67r 1.7 R 0 0.48 0 0 0 : ■ \ : \ ' \ \ i , \ \ ' \ ■ \ \ i \ \ \, \ I \\ \ I ! \ , \ \ \......... . \ \ i \ 4:3'■ \ , I % ) Side Channel • l'e L , - C ks.,, , , %,•-,,, ( - -- Main Channel I - - • ••,, °,,, ! ,::.! .• i. . 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S .2, VIIII)V-'5',azr"'" r';I______________________,e ll co w ........................... ix il- ig ° 4 2 , W i 2 0 I Wetland 1.7R Springbrook Creek (Stream 09.GR-1.6) SW 16TH ST WETLAND IMPACTS (Ac) STREAM IMPACTS (if) I-405,1-6 to SR169 & SR187,1406 to SW 41ST ST REFERENCE ft 200600097 APPLICANT: WSDOT PERMIT DRAWINGS / Stream Mitigation Site: 1 Limits of Instream Grading & Culvert Removal Area &Mem 09.GR-1.8 Tana 41988 rcib7/2 886 &altar 11920 Twig LE/Ar 30240 Flonz Affix 35732 PROPOSED/RETAIN: 1.7 acres of Impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEARIAT: Renton COUNTY: IGng STATE: WA DATE: 4/28/08 Leaend 1Alatlarde \ I Uolooveyed VA:Rands P m rwalar Pond Proposed Storm Drain ProPosed Right-otWay &IRMO RightalWay Easement Una Editing DrofrolOa Culvert • ts• WO ID ci PIPed Strewn Culvert whit ID end &moon of flow Flow Mow Ecology Embankment CL ,01, Cross Seedon Locabon shown an D Sheet Crass Section direction on Datall Sheet • Ditch • --e• Talent Ditch Channel Strewn • &Ram Storm Wats Existho Storm Manholes Existing Grata Inlet Proposed Wall Undardrain Editing Edge of Impervious Surface Proposed Edge of imperAous Surface Cut urns FW Line Editing Guardrail Pennenent Weltard he MMO act Terre. broad Permanent Sheen Impact r7•7•7•7•q ToroP. Stream Impact • • Strewn and Wetland Buffer Nob Not all legend elements NO found an every sheet within this drawtng set. KEY PLAN 0 100 200 Feet • HORIZONTAL DADA! NAD 83/01 VERTICAL DATUM NAVD 88 SHEET 9 OF 27 . _ . Staging Area Location #4 Proposed Ecology Embankment PURPOSE: Roadway improvements • X i}' r?tY� 'c'9'3t 11 hi i w 0 00 m (13) NOI1VA313 -. : L2.2 0 O W O O LL �p J N 0 ... r- a 0 w a o U Z O W z a z Q LL � LL � m Co_ 2 a O a X I- U a a a W N z Cc W z W 9•I -1J0'60 VV3HIS )I33ND IOO8OONINds '- a N � z W w Q LL LL � m a O O O 1O Q N ELEVATION (FT, O Z 1- J — Q X K W H W 1- V1 2 I a X a I - U I K Z a s 0_ 2 X I ow K o LL> U wI VI LL = J LL O O o I J U m 1a W 0 ° 1- U Z CC O - CO H 0 < U wa m W O =w + a K X e- Cr w W Z W U. CO 0 N 0 0 0 No O 0 O O 0 0 0 In • • o v co o Z O o r- o W Z 0 ✓ LL 0 Z 7 z a 0 O+ 1- W W W 0 d r 8.440)0 z go f N d CO CO • S LZ dO L l 13121149 000AVN atLLYO1YOLU3A 1031 Minima TI1NOmaom • 90/9Z/b :31V0 VM :31V1S BuDI :A1/1000 ua4ue21 :1V/VV3N BPuBBBM PuB BWBa4S :NI s n e2A is s1e4BM 10 41 0 PUB SPuefOM spedu4 40 BBJOB L•t :NIV1321/a390d019d S1719M1M0 111RI3d 1OOSM :1NV011ddV L6000900Z 18 MP MS 0190P1 '19IMS V 69LaS 0191'9021 3013VM1NO3 AS 0314101N3130 38 01 NO11VA313 WV3d1S 1VNI3 (13 OZ +Z OO +Z 08 +1 4 09 +1 O0+1 OZ +1 00 +1 08 +0 09 +0 O0+0 0Z +0 00 +0 0 oNnouo m 0 : 0 ti 09 1N3NVWH3d (91;10'60 w 3 1 0 a0 necuqouvdk N011335 SIHI 30 M31A NV Id 803 6 133H5 335 LS'1 'd1 - S NOILO3S ONIi51X3 - 10VdWI 8333n9 WV3d1S L C� NWn1OO WMHO _ 03sododd 30V80 03SOdONd_ 17Vd011 1 13Vd14 I WV3d15 '&431 10VdWI X N z G) r 13V WI N333 WV3815 1N3NV WV3815 'dW31 u der Soo Y I WV3211S 1N3NVWN3d slueuMMaldul 2I :3S0dVild OZ t z 0 O w W 09 13VdWI 83din8 WV3d15 '&131 ne 13d '6 4••y uo P•1 a PU•B•I &+!""W• :e-o • • • -_ •- • - -• • a • e • • wisp lip .atue3 map roma! w maw 4IJON JO uo •p is :0401,1 MAP I 90071071► Rd 80423 7:20220 PM 140CC :AMMO CNN `0030,IOOSM cps LZ d0 Zl 133HS 99 GAVN i tUVG Y91 713A I03t011d =1VO TY1NamrIoH • Pod a OP OE o N 8013V810100 A8 0381883130 38 01 NOIIVA313 11V381S 1VNId (Id) 09 +Z 09 +Z Ob +Z 0 m OZ ti O z Oh 09 —� (03A0838 38 01) 183Alno X09 031133 -3AId ONIISIX3 9019PJ4 :31y0 vM :31vjs •+DI :A1Nf00 uoLueb :1y, y] spusBeM pue swBa4s :NI sn e10 40 SJO4EA1 JeLlto PUB SPuogeM S0BdW1 1O SWB EL :NI1/13N 3SOdOild 80131/81803 A8 03011883130 38 01 010111A313 1v381S 1 0Z +Z 00 +Z 08 +1 09 +1 Ob +1 0Z +1 00 +1 t 08 +0 09 +0 O0+0 0Z +0 00 +0 0 z 0 0 0 Ph m N01103S SIH1 30 831A NVld 803 6 133HS 33S 99'i 'dW - 9 NOI103S Nwnl03 03SOdOdd S9MMWVGJAMV3d IOOSM :1NVGnddv /6000900Z 18 .1 LP MS CL 9041 'L912111 V 691215 CL 21 '20P1 10Vd81 8333O8 WV3d1S 1N3NV8d3d J W Hfl lIVd1 —� \,ONIISIX3 –) 8V381S A8080d831 0 a, BWeweAadwl AumPuold :360d1:1111 ONnOMO ONI1SIX3– 300188 03SOdOdd 17VdNI 83ddn8 WV381S 111380883d 0Vd11I d33dn9 W 381S 1N3NV11d3d 0 OZ O r oh W 09 '6 po11r uo PAP II Pull Ou1muu0 :oioN „---- IFul WPM • 4u.w1 uDgui3 LBo103] pomd01d Wo Wm+ae000edwas v I MEP I 900e19211 nd aa1r•1 vowel tort I woe %unnoo =ND( roam ;IOOSM xurpS PURPOSE: Roadway improvements ---- .._..— •-- •-- ••------- ••- - - - - -- .._.._. LINE SHEET 9 _..---- •--- •— •• —• - -• -- ._.._.._.. 1 rr v , k / Tana a 1 V 1 � 1 zti g 73 . • 1 !1s m 1 „ t 1 &. 1 , T I 1 ` 1 I _ RA AVE SW — 1 \ :Ni ag ; I0.48I 1 /nlaa/ 1-406,1.6 to8R189& 8R167, 1.406 to SW 41ST ST REFERENCE # 200600097 APPLICANT: WSDOT PERT IT DRAWINGS i it— 1 1 II 1 1 m 1 1 0 .I i e 1 1 i In ` ';' � ` PROPOSEDIRETAIN: 1.7 aces of Impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4/28/08 z I yi i I c r' T —ST " 1 • II!, i iS I k 1 1 3m 'V i ll ..._ 1S -1S -1S Y 1 ` 1i 1 - MAT C H L S 1 4 N 100 200 + Feet II HORIZONTAL DATUM NAD 81181 VERTICAL DATUM NAVD88 SHEET 13 OF 27 NI � s ' FA 11 I Ilifilifillifillifififfiiiii m i i gg e 4 1 I 4 l x I i I 1 f i _ l II 3 i ��QQ (a (� Ni 1 PI ' re n mummy a l O 1 p ��: ties ]1J�. .: our= VYSDOT, 2004, KING COUNTY; 2004 I lief up0404± 1:10:10 PM 420/1000 I es ee I PYAGNIneertn01004anybonUARPA 20001Corp S4Mpe00.400_p0.d n Sow= MOOT: KING COUNTY: 2004I lot wdsfmt 1:31362 PY 42020)8 I Outs Note: Direction of North Arrow at lower right comer of this sheet. Note: Drawing legend is depicted on sheet 16. PURPOSE: Roadway Improvements 60 m I- T 40 — 0 z 20 0 EXISTING GROUND F r- 0 +00 0 +20 TEMP. WETLAND IMPACT FA06, Fd TO SRI 69 & SRI67,1.406 TO SW 41ST ST REFERENCE ak 200600097 APPLICANT: WSDOT PERIQT DRAWINGS WETLAND 25.0L J PROPOSED ECOLOGY EMBANKMENT x PROPOSED GRADE PERMANENT WETLAND BUFFER IMPACT PERMANENT WETLAND IMPACT 0 +40 0 +60 0 +80 1 +00 1 +20 SECTION 19 - MP. 25.53 SEE SHEET P1 18 FOR PLAN VIEW OF THIS SECTION 60 40 0 a 20 w W 0 1 +40 (FT) PROPOSEDIRETAIN: 1.7 acres of Impacts wetlands and other waters of the U.S. IN: Streams and VYetla ds NEARIAT: Ranton COUNTY: IGng STATE: WA DATE: 4126105 • • • • • • • • • • • • • NORIZONrAL DATUM PROJECT VERTICAL DATUM NAVD 88 SHEET 19 OF 27 • 1 I SW 27TH ST ..- . .— ..— ..— ..— ..—.rJ •'& �.. —..L Y. I.L. MATCH LINE SHEET 21 WETLAND IMPACTS (Ac) HMI me' 25.0L Test 0.58 Peen 0.99 .1 are c 0 Tent 0.08 271 STREAM IMPACTS (ef) • 1-406,I- toSR189& SR187, 4406 to SW 41ST ST REFERENCE 200600097 APPLICANT: WSDOT PERMIT DRAWINGS Wetland 24.7R East Fork Panther Creek (Stream 09.SC -25.7) / , \11, Panther Creek Wetlands Abandoned Cross - culvert (no flow) per HPA#00- D3608 -05 II, PROPOSED/RETAIN: 1.7 acres of impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4/28/08 Legend :: Wetlands 117 Unswayed Wetlands O Proposed Stonnwetr Pond Proposed Storm Droln Proposed PoOhta*vlay Existing sway Eaeenerd the Existing Drainage Calvert wtih ID ..0 ....� Pped Stream Caret YAM ID and direction of dam — • low Mow Ecology Embankment Cross Section location Z. shown on D Sheet Cross Section direction on Detall Shed Ditch Talent DItch open Channel Stream .: [1 t3deting Stomrinlets 4. Editing Storm Manholes = Erdstg orate hdet Proposed Wall Underdratn Editing Edge of bependO a &Ow Proposed Edge of ImpeMous Srefem Cut Line RI Une Editing Guardrail Permanent Wetland Unpaid Temp. Wetland impact Permmmerld Stream Impact • Strewn and Wetland Buller Note: Not all legend elements are found on every sheet within tie &awi g set KEY PLAN o too 200 Rest e HORIZONTAL DATUS! HAD 8397 VERTICAL DATUM NAVD 88 SHEET 20 OF 27 MATCH LINE SHEET 18 t t :1 ;, t I I �• 1 Proposed Ecology Embankment Wetland 25.0L Steam 09.SC -25.7 Tema 0 Poym 0 0 Tame Bu�ar 404 Pomt Etenbr 1843 PURPOSE: Roadway Improvements Seeam Tani Aim /ndbad Tana &far ftvim Bair 09.SC -25.7 0 0 0 404 1843 _ „ _ „ MATCH LINE SHEET 20 t Ili'• d :iii l c WETLAND IMPACTS (Ac) .OL E cology nt • t f I 20 F 1 r I ST I.406,1-5 to SR189 8R167,1.406 to SW 41ST ST REFERENCE 1 200600097 APPLICANT: WSDOT PERMIT DRAWINGS f .\1 /L Abandoned Cross - culvert (no flow) per .\ I /, HPA#00- 03606 -05 Wetland 24.7R East Fork Panther Creek (Stream 09.SC -25.7) Panther Creek Wetlands ,\I Abandoned Cross - culvert (no flow) per HPA#OO- D3806 -05 \ILL PROPOSED/RETAIN: 1.7 acres of impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4/28/08 Leaend Wetlands ,\ 1 / Unswayed !Noland. O Proposed sbemw ate Pond —!� _ Pr000eed Steen Mein Proposed RWy Basting Easement Une Exlsthg Dishrags Culvert s► - WUh ID .c: Piped Strewn Culvert wMh ID and direction of flow --a Flow Mow Ecology Embankment Cross Section location . Z. shown on 0 Sheet Cross Sedlon dhedlon on Debt Sheet - • • .. —a Talent Dkrh Open Channel Stearn Limits of Work _. Etdda° Sloan Wets Edging Storm Manholes = Editing Orate Inlet Proposed Was - .. - - -,.- Undde ddnyn Beating Edge of Impend= Surface Proposed Edge of Impervious Surface Cut Une Fill Une E xtra g Oued rt Permanent Viand Impact Temp. %Wand Impact Permanent Strewn Impact r^:7•7 Temp. Stream Impact • Strewn and %Wa d Buffer Nob: Not all legend elements we fond on every sheet within tits drawing sat KEY PLAN o T 2C° a F HO RIZONTAL DATLR! NAD scan VERTICAL DATUM NAVO M SHEET 21 OF 27 20 21 Proposed Stormwater Pond #MP 25.2 Wetland 2 25.0L Tana 0.58 Awns 0.99 Ixfavet 0 Tana 0.08 firmx 2.71 STREAM IMPACTS (af) PURPOSE: Roadway Improvements Proposed Embankme `. J i 4110 � I I III I CH L I N E SHEE 2 4 im Scam WSDOT, 2000. TONG COUNTY: 2004 I Lest update* 1:3727 PM 4282008 I doles I MASIEngh=r6880041srafronLARPA200biGesp Se84880009040 _82048 Note: Diredian of North Arrow at lower right comer of this shoot. Note: Drawing legend is depicted on shell 19. 60 01 m 40 H 0 20 Stonnwator Pod ▪ • , I MP. us •I Wetland 25.0L PROPOSED STORMWATER POND MP. 25.2 EXISTING GROUND • • L_._ • • • i PROPOSED DRAINAGE 0 W 0 X w W W 41 kerWIAMaqrAgg 'ti ' Ciel d frartairrenrsi 111. • W I• Proposed Raining wdi WETLAND . W 0 X w • • I PROPOSED GRADE 60 40 L t z 0 a 20 W PERMANENT WETLAND PERMANENT WETLAND PERMANENT WETLAND BUFFER IMPACT IMPACT BUFFER IMPACT 0 0 0 +00 0 +20 0 +40 0 +60 0 +80 1 +00 1 +20 1 +40 1 +60 1 +80 2 +00 2 +20 2 +40 2 +60 2 +80 3 +00 (FT) PURPOSE: Roadway Improvements SECTION 8 - MP. 25.26 SEE SHEET 19 FOR PLAN VIEW OF THIS SECTION 1.406, 14 TO 13R169 & SRI67,1-405 TO SW 41ST ST REFERENCE a 200600097 APPLICANT: WSDOT PERMIT DRAWINGS PROPOSED/RETAIN: 1.7 acres of Impacts wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: IGng STATE: WA DATE: 4x26108 + 20 40 Feet IMMORTAL DATUR! PROJECT VERTICAL DMUit MAW 88 SHEET 22 OF 27 Source: WSDOT. 2004, KING COUNTY; 2004 I Last updated 1:382! PY 4/2812008 OA I var 5 A9)Y .. t A 1 • Note: Diredlon of North Arrow of low right corner of this shoot. Nora: Drawing legend is depided on sleet 19. 60 m T40 o Z 20 0 PURPOSE: Roadway Improvements EXISTING GROUND Proposed *amender Pond MP 25.2 PROPOSED ST0RMWATER POND MP. 25.2 dui I PVICIErdederInce0041errArenUARPA \I I - 1 • • 1 • • I • Wetland 25.OL 1406,16 TO 8R189 & SR167,1405TOSW41STST 2 � REFERENCE* 097 APPLICANT: WSDOT PERMIT DRAWINGS PERMANENT WETLAND BUFFER IMPACT • -- • PROPOSED STORM DRAIN PIPE SEE SHEET 19 FOR PLAN VIEW OF THIS SECTION SeeApe000e0401LE22.d7n TEMP. WETLAND IMPACT WETLAND 25.0L TEMP. WETLAND IMPACT PERMANENT WETLAND IMPACT I.1 0 +00 0 +20 0 +40 0 +60 0 +80 1 +00 1 +20 1 +40 1 +60 1 +80 2 +00 2 +20 2 +40 SECTION 9 - MP. 25.19 PROPOSEDIRETAMN: 1.7 acres of Impacts wetlands and other waters of the U.S. IN: Streams and Wetlands NEARIAT: Renton COUNTY: ling STATE: WA DATE: 4126106 4 ♦ Proposed Retaining wail w 0 a a cc La SR -167 O a o 2 a PROPOSED 40 0 GRADE a o 20 PERMANENT WETLAND 60 U. 4 w w BUFFER IMPACT D 2 +60 2 +80 3 +00 (FT) PERMANENT WETLAND IMPACT + 00 HORIZONTAL DATUM: PROJECT VERTICAL DATA! NAVD 86 SHEET 23 OF 27 • an Tema Poymt badvata' Tema flenir Porm. Bair 09.SC -24.7 0 2409 0 0 0 09.SC -25.7 0 0 0 404 1843 Wbtle d Terra Porn. boded Terra &Ay Perm. B&/JSr 25.01 0.58 0.99 0 0.08 2.71 OH H OH H 1-405,1-8 to 8R189 tk 8R187,1.406 to SW 41ST ST REFERENCE is 200600097 APPLICANT: WSDOT PERMIT DRAWINGS Abandoned Cross-culvert (no flow) per HPA#00-03606 -05 ,\ I /, WETLAND IMPACTS (Ac) STREAM IMPACTS (ef) Wetland 24.7R Panther Creek Wetlands I /i East Fork Panther Creek (Stream 09.SC -25.7) .\ I .\I /, East Fork Panther Creek (Stream 09.SC -25.7) CH PROPOSED/RETAIN: 1.7 acres of impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: Zang STATE: WA DATE: 4/28/08 Legend 1; Unswayed Mends O Proposed Stemmata Pond Proposed Storm Drain Proposed RIO•o$Wity Existing Y Easement Line Esetlog Drainage Culvert wSh ID mow Stream Culvert aAth ID end direction of Bow Flow Mow 1=11 Ecology Embankment (1[! Crass Section Location .°'. .D sham on D Sheet Cron Section direction on Detail Sheet DBrh Oslenl y Open Channel Stream Eaistlng Stan Weds Eo slam Manholes Eastg grate Inlet Purpoeed Wall Underdraln Existing Edge of Impervious Sufis Proposed Edge of hnpeMan &rare Cut Line - .e.�..- RH Line ExIsang Garden Pomona ® Mara Impact Temp. Wetland hoped Pemoutent Stream Impact 57 Temp. Stream Impact • wean and Wetland Buffer • c�. Note: Not all legend elements we found an every sheet within this dream set AMY PLAN V o 1ao sac e Feet s HOR2ONTAL DAUM HAD 83191 VERTICAL DATUM NAVD 88 SHEET 24 OF 27 _ _ _„ MATCH LINE SHEET 21 Proposed Ecology Embankment Wetland 25.0L ' West Fork Panther Creek (Stream 09.SC -24: -.441-- 23 H VM 24 • Proposed Ecology Embankment Ii I West Fork Panther CrAek I (Stream 09.SC -24.7) PURPOSE: Roadway Improvements 0 MAT llama WSDOT; 2004 TONG COUNTY: 2004 I Last updsst 1:3(813 PM 4/282008 I clutre I PMEnatneettn880041erstranUARPA 200MCeip 8e84pe000e04&j Note: Drawing legend is depicted on sheet 22. PURPOSE: RoadwayImprovemeMa OH West Fork Panther Greek (Stream 09- SC24.7) 60 rn P 40 0 20 0 Pmixtsed Retaining wall Wetland 25AL - - EXISTING GROUND — WETLAND 25.0L • C W W N U I- N z • ao Y Y O O W K Fi W OHWM PERMANENT STREAM IMPACT PERMANENT WETLAND IMPACT 0 +00 0 +20 0 +40 0 +60 0 +80 1 +00 SECTION 10 - MP. 24.81 SEE SHEET 22 FOR PLAN VIEW OF THIS SECTION 1-406, F6 TO SR169 & SR167,1 -405 TO SW 41ST ST 2 0 REFERENCE 097 APPLICANT: WSDOT PERMIT DRAWINGS S i •; •� [GRADE PROPOSED EXISTING CULVERT C66 PERMANENT WETLAND BUFFER IMPACT 60 PROPOSED/RETAIN: 1.7 acres of Impacts wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: IGng STATE: WA DATE: 426/06 0 a 20 w 0 1 +20 1 +40 1 +60 1 +80 (FT/ ® -- • • • • • • � • • 1 • I alb HORIZONTAL DATUM PROJECT VERTICAL DATUM NAVD 88 SHEET 25 OF 27 0 20 40 4.2 Fast Sates: MOOT; 200A MO COMM; 2004 I LAO updated 1 PM 4/1882006 I dohs I PMEnpineerb5801XlenvhonlJARP A 20061Cap 88548800080108_825•den • • Note: Drawing legend is depicted sheet 22. m rn 40 0 z 20 ti PURPOSE: Roadway Improvements • Wetland 2.5.0L 60 • • ep wall 0 • West Fork • (Stream 0�?4.7) • • • • EXISTING GROUND t 1306, F6 TO SR169 & SR1B7, 1406 TO SW 41ST ST 200600097 REFERENCE APPUCANT: WSDOT PERMIT DRAWINGS WETLAND 25.0L •: • I • I • •; • • •j • Y or ¢ v OHWM w N - V 1 N Z . a 0 ao z a o w w o: w 0 +00 0 +20 0 +40 0 +60 0 +80 1 +00 1 +20 1 +40 1 +60 SECTION 11 - MP. 24.76 SEE SHEET 22 FOR PLAN VIEW OF THIS SECTION PROPOSED ECOLOGY EMBANKMENT PROPOSED GRADE Embankment f J ' PERMANENT WETLAND BUFFER IMPACT PERMANENT STREAM PERMANENT WETLAND IMPACT IMPACT PROPOSEDIRETAIN: 1.7 acres of Impacts wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: IGng STATE: WA DATE: 426/06 60 40 t. z 0 20 w w 0 1 +80 2 +00 2 +20 (FT) • • I • • L • • • • • • • fi Fast 0 20 40 s HORIZONTAL DATUM PROJECT VERTICAL DATUM NAVD 85 SHEET 26 OF 27 I. ti Wetland 25.0L I Li / i f! . TD -1085L i . • •'� j % w b° — y e I y 0 1 SM 41ST S: S 80TH ST N I . 1 1 1 1 1 1 1 1 1 1 , \ 1, I - Wetland 24.7R WETLAND IMPACTS (AO I.406,I .Sto8R169& SR167,1406 to SW 41ST ST REFERENCEak 200600097 APPUCANT: WSDOT PERMIT DRAWINGS \ ILL West Fork Panther Creek (Stream 09.SC -24.7) Nbtand 25.0L Tama 0.56 Pem 0.99 0 Tea 0.08 Heim. Babr 2.71 S 43RD ST r — • \ PROPOSED/RETAIN: 1.7 acres of Impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4/2W08 Legend Wetlands \ I /, Unswveyed wetlands O Proposed Stornwwter Pond Proposed Sloan Drain Proposed aWM ollWay Existing RIgttl•Mway Easement Line r =� Existing Drainage CuNed 11.= with ID ,.�.., Piped Strewn Curoert with ID and *seen of Sow Flow Mow ® Ecology Embankment ( Cross Section Loratbn .t sham en D Sheet Cross Section drectbn L —� on Detail Sheet —3. Ditch —> Talent DSh Open Channel Strewn • . Existing Storm bleb Existing storm Manholes x Existing Orate Inlet Proposed Wei Underdrm, Basting Edge of Impervious Surface Proposed Edge of hnpeMous Surface Cut Line Fill Lbw Existing g Oawdret Pennant Wetland impact Temp. Wletland Impact Peritoneal Stream Impact r; 7,771 Temp. Stream Impact • Stream and Wetland Beer IMMO Nom: Not a0 legend elerronb we Strad on every sheet within this drawing est KEY PLAN 4 . 100 200 e Fee< HORIZONTAL DATUM NAD 8381 VERTICAL DATUM NAVD 88 SHEET 27 OF 27 • i PURPOSE: Roadway improvements MATCH LINE SHEET 24 a Panther Cree ' 1 1 Wetlands PURPOSE: Roadway improvements MATCH LINE SHEET 13 Q. III 0 1_ gima 8 4 S 1! C31 p � 0 `� 0.48 /n12Tiad 1 �', fit. n I j LIND AYE SM f , 1 - ►5 LS _ i 1 •• � __ LIND AVE SW r - $1 1-406, 1-6 to 8R168 8R187, 1.406 to SW 41ST ST REFERENCE 6: 200600097 APPLICANT: WSDOT PERMIT DRAWINGS 1 � I i i J I, I 14 I I{ . .A 1 I " I N i ll MAPLE AVE S of I N — 1 I Y -- \I 's 1 MATCH LINE SHEET 15 PROPOSED/RETAIN: 1.7 acme of impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4/28/08 0 tOD 200 e Flat HORIZONTAL DATIA! HAD 83101 VERTICAL DATUM NAVDea SHEET 14 OF 27 ` El Fl H i il l inrifilliiiiiiiIIP"i iii Pl i tilif q iii r II li i 1 9 1 i f i l ,,, i imill fi III i 'iiII r ENI (4 la' 1 ; 2 � d� if pl I 0;�; 1 iiii i i rzi t , Il .. lire 414 ... . . *,... wox WSDOT 2004, KING COUNTY; 2004 I Last upland: 1:1004 PM 4280:006 I I PVY A 20061Corp SIMp400MO0_00.dgn Hidkiid Tema lism /added Tema BahEr RAM Buhr 2.2R -B 0 0 0 .01 .01 • WETLAND IMPACTS (Ac) W _' ILl • M.P. 2.20 Z TD -2117L / I -405 N8 CO Proposed Ecology - Embankment,�' TD-2118R/43 , / I •\ TD-2120R SW 16 TH ST �. Wetland 2.2R -8 � - TD -2119L S B ,, Op TD -2118L 14 "° Wetland 2.2R -A TD -2119R /1 STREAM IMPACTS (sf) .9lwed Tema Pima /have 09.SC -2.8 0 0 0 'Staging LOGetio F101 - 'r SB 'O5 OFF -Rq TD -2118L �r Y.P. 2. =, 1 I• - - - ,1_405- N - LLI U w ; ;J II I r g : r Proposed r r 9 I Ecology r r Embankment ,2 P' I .: gym, /j4 I / /r 1 car' Wetland 2.31R Tea flint Bum Beefy 292 1527 127L' r . I ' . Wetland 24.7R 1 Rolling Hills Creek \11� (Stream 09.SC -2.8) 'CD • ' W PURPOSE: Roadway Improvements 1.406,14 to 8R189 a 8R167,1-405 to SW 41ST ST REFERENCE tk 200600097 APPLICANT: WSDOT PERMIT DRAWINGS PROPOSED/RETAIN: 1.7 sass of impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: tang STATE: WA DATE: 4/28/06 Legend Y tIaMs , I /, Unsprayed VWBerde O Proposed Stonnweter Porn Proposed Storm Drain Proposed RlghirefWay DdetIng RAT Easement Line _ Odetlng Drainage Culvert i with ID 4 _ 4 Piped Steam QINert with ID and direction of Sow Flow Arrow 11 Ecology Elmmrwaent [N__40, Cross Section Location shown on 0 Sheet Cross Sedlon dtrocron on Detail Sheet • 08th Open h ah w Upon Channel Stream Existing Stem Wets Exdstirg Slam Yanhobe Existing Orate inlet Proposed m —� —. Ulderdreln g E of ImperNau Surface Proposed Edge of tnpervlaxs Surface Cut Unto Line Existing Guardrail Penmerwd Watrand Impact Temp. W9Sand Impact Permanent Stream Impact ;;; •Tamp. Stream Impact . Steam and 'Attend Buffer • L Note: Not all raged element, we fad on every sheet within this drawing eat. KEY PLAN o too yco w 0 1:1 Fed e HORIZONTAL DATtat NAD 83191 VERTICAL DATUM NAVD 88 SHEET 15 OF 27 PURPOSE: Roadway Improvements _ : �._.._.._.._.._.._.._. MATCH LINE SHEET 15 _--_--_--_--_--_--_--_--_-- Stream 09.SC Tana 0 I �� I ' • o °J ``', I • I to co r . 1 0 1 0 , ` }I < II $1- \.„ F406,1-5 to SR1S9 8 8R187, FMS to SW 41ST ST REFERENCE 1 200600097 APPI JCANT: WSDOT PERMIT DRAWINGS @, $1 11 C48 1. \\ I \. o . _ $NAIIULK AVE S = z _ - - - - = rx i rvC CVE S - — 7— 1 — — - t G t MATCH LINE SHEET 17 . ..• y RF5 ' r PROPOSED/RETAIN: 1.7 acres of impacts to wetlands and other waters of the U.S. IN: Streams end Wetlands NEAR/AT: Renton COUNTY: tang STATE: WA DATE: 4/28/08 M 0 100 ZOO H Fed e HORIZONTAL Danes NAD 8391 VERTICAL WNW NAVD w SHEET 18 OF 27 ra ..� ` :.1 3 i II IN EIR' , 1 5. i 8a f r (ED 11H ill; L (a iP ill i VII T F1 E l il 2 . i 1 4 I I p g s i fE a Fi � . -, )07; 2004, KING COUNTY; 2004 I tat UpCCtart 140.40 PM 4/2N200E I Mess I PWIEncOnoortne1000eovtenUARPA 20051Corp SoCeprr00a4m p11. n PURPOSE: Roadway improvements MATCH LINE SHEET 16 . 1 . 1% '' 4' '1 I 4 VA - • 7 , 4 _ _ MORRIS AVE S 1 0 .... . I rn • 1 a • • • • ';' 4 ' - s% 1 1 a Hbaznce 2.6L Tema 0 o g Ac) STREAM IMPACTS (ef) 0 0 $1 0 $ I I-406,14 to SR189 & 'M167,1-405 to SW 41ST ST REFERENCE # 200600097 APPLICANT: WSDOT PERMIT DRAWINGS • il■ 1 CL A . • ' tt• I ' I° I . u■ a . • li ••..•.. a .. • •• a i i - SO TTIEFti Wr V 1 . 1-0 !... " 4 _ _ A • . • A • ...tlxic , 1 • ,• . a T .... . fig A a. •••••• • .,5•In \ .. .. 0 A 8MS. - . , . .... . g . 2 _ i \• ■ ." \ It & , . ? 9 57g" \ '...1 09.RH -2.8 09.SC -2.8 1 cA cT Test . 0 PROPOSED/RETAIN: 1.7 acres of Impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4/26/06 o o • 1 .•'.. If! 2 _ ---:_-:-- , • y\ , \ \\ • .. go \ . •A•••• 2 -.. s. \' ; .. --,‘ ,47:!..,•.--1 FA, a . 14 ' TA .". Ng *I 6 - 1 ■ 19 i ' 4— , . \ ••=f 4 1 7002 1627 $ I i TALBOT RD S \ ‘ — — - — \ ‘ ■ ... \ I:g TALBOT RO 5 M E 0 700 200 Feet • HORIZONTAL DADA! NAD 8391 VERTICAL DATU1! NAVD 88 SHEET 17 OF 27 --„. ra . m 9 Mr v A / 0 Ej -LI 111 i 3 -1 g co II I I I i 1/ iii I : li II -4 -I il 111111111iiiin li I L ' i1 1 111/ g a g a • -4 0 g 15 ilii 1 I i i ( l i g? l i ttlifi 3 111 i I yl a. 1 1 I:111 11 e I i . AI al 1 1 11 n = an Einre:. r . / 115 ,.... E- I Scam VIRS001"; 20034. KING COUNTY; 2004 I Last uptioNG 12120 PIA 4120/2000 I Wag I PWABNIIneedrigTOONTNIronUARPA 2005com SoMpaT0840b_p12.dan Ma Ignif Tenµ Penn dialftel Tema Bair Ifs/M.. Bair 25.7L 0 0 0 0.03 0.01 25.0L 0.58 0.99 0 0.08 2.71 • 1 9 WETLAND IMPACTS (Ae) STREAM IMPACTS (at) Wetland 25.7L East Fork Panther Creek (Stream 09.SC -25.7) Proposed Ecology Embankment Wetland 25.0L Sevan 09.SC -25.7 Tamµ 0 0 /nil 0 Tama Buffer 1843 PURPOSE: Roadway improvements MATCH LINE SHEET 20 1-406, 46 to SR189 & 13R187, 1-405 to SW 41ST ST REFERENCE 200600097 APPLICANT: WSDOT PERMIT DRAWINGS Wetland 24.7R Panther Creek Wetlands • \\ 1 IL East Fork Panther Creek (Stream 09.SC -25.7) \\ I LL PROPOSEDIRETAIN: 1.7 acres of Impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4/28/08 Legend wetlende \ I /, Unswayed Wetlands Proposed 8eonnwater Pond ,,_ Proposed Storm Drain Proposed 0101ta4Way g may Easenem Line Existing Drainers, Culvert Piled Steam Culve t with ID and direction of flow —, Flow Mow Ecology Embankment ( Cron Seeflon Location .e.3 shown on 0 Sheet Cross Section direction on Detail Sheet — DEM — a, Talent Ditch Open Channel Stream r i Existing Storm Inlets rA Existing g Storm Menholee = Erdsti g Orate Inlet Proposed yyaI - ,. -w Undadrain of Editing bnpwn auSurface Proposed Edge of Impervious Surface Cut Line ...gym- nil Line Existing r3uardraa Welland Impact ® Temp. Wetland Impact Permanent Stream Impact 7 Temp. Stream Impact • Stream and Wetland • Buffer Note: Not all legend elements are found an every sheet within We &swing eat KEY PLAN HORIZONTAL DATUM HAD EOM VERTICAL DATUM NAVD tin SHEET 18 OF 27 • • ATTACHMENT 4 General Shoreline Use Memorandum RECEIVED MAY 2 3 2006 COMMUNITY DEVELOPMENT • • rl orridor Program Congestion Relief & Bus Rapid Transit Projects GENERAL SHORELINE USE MEMO 600 – 108th Avenue NE, Suite 405 Bellevue, WA 98004 Main 425- 456 -8500 Fax 425- 456 -8600 May 23, 2006 By Joseph Pursley, Permit Coordinator Subject I -405, I -5 to SR- 169 – Renton Nickel Improvement Project (Project) City of Tukwila Shoreline Application — Criteria for Projects Subject to the City of Tukwila Shoreline Regulations Below are responses to the "Criteria for projects subject to the City of Tukwila Shoreline Regulations" as defined under the (Tukwila Municipal Code ITMCI 18.44.110) General Shoreline Regulations. All uses within the shoreline overlay district must conform to the following general regulations. Responses to the following criteria are based on the use activities in and around the Green River. 1. The use is in conformance with the regulations of the underlying zone district. All Project elements are within conformance with the Urban Zone district regulations. 2. The use does not conflict with the goals and policies of the shoreline master program or the provisions of the Shoreline Act and shoreline regulations. The Project does not conflict with the goals and policies of the Shoreline Master Program. 3. No structures or accessory facilities shall be located over the river unless such structure protects or promotes the public interest. The Project does not propose to construct any structures or accessory facilities over the Green River. 4. There shall be no disruption of existing trees or vegetation within the river environment unless necessary for public safety or flood control, or if allowed as a part of an approved shoreline substantial development permit. • 5. No effluent shall be discharged into the Green River which exceeds the water quality classification as established by the State for the adjacent portion of the river. The Project does not propose to discharge effluent into the Green River. • The Project does not propose to disturb any existing trees within the river environment. A small portion of roadside vegetation will be disturbed on the west side of the Green River buffer. 6. All State and federal water quality regulations shall be strictly complied with. The Project will meet the requirements of all state and federal water quality regulations and will obtain all required permits. 7. Wildlife habitat in and along the river should be protected. The Project will not disturb wildlife or wildlife habitat in and along the Green River. 8. All perimeters of landfills or other land forms susceptible to erosion shall be provided with vegetation, retaining walls, or other satisfactory mechanisms for erosion prevention. The Project will incorporate the applicable measures in order to prevent erosion and ensure compliance with all water quality regulations. 9. All necessary permits shall be obtained from federal, State, County or municipal agencies. The Project will obtain all federal, state, and local permits. 10. Dredging for purposes other than for navigational improvements or flood control is prohibited. The Project does not propose dredging in the Green River. 11. Mining is prohibited along the river shoreline. The Project does not propose mining along the Green River shoreline. 12. Solid waste disposal is prohibited along the river shoreline. The Project does not propose to dispose solid waste along the Green River shoreline. 13. No property will be acquired for public use without dedication by or just compensation to the owner. The Project will not acquire properties for public use without dedication or just compensation to the owner. T:\Environmental (Project Level)1South_Renton_Nickel \l2- Permitting \Tukwila shoreline permit (Final)\Attachment 4 (General Shoreline Use Memo)1General Shoreline Regulations.doc 2 JP • • 14. Landfilling is prohibited within the river channel unless such landfill is determined by the Planning Commission to protect or promote the public interest. The Project does not propose to place fill within the Green River channel. 15. Not withstanding any provisions of this Code to the contrary, removal of any cottonwood tree within the river environment or the low- impact environment, which tree is 12 inches or greater in diameter as measured 4.5 feet above grade, shall be subject to the requirements of TMC Chapter 18.54, Tree Regulations. The Project does not propose to impact any trees within the river environment. T: \Environmental (Project Level)\South_Renton_Nickel \12- Permitting \Tukwila shoreline permit (Final)\Attachment 4 (General Shoreline Use Memo) \General Shoreline Regulations.doc 3 i. ATTACHMENT 5 Technical Information Report (Stormwater) RECEIVED 'MAY 2 3 2006 COMMUNITY DEVELOPMENT INTERSTATE Congestion Relief & Bus Rapid Transit Projects • • Corridor Program 600 — 108th Avenue NE, Suite 405 Bellevue, WA 98004 Main 425 -456 -8500 Fax 425- 456 -8600 TECHNICAL INFORMATION REPORT (STORMWATER) May 23, 2006 By Joseph Pursley, Permit Coordinator Subject I -405, I -5 to SR -169– Renton Nickel Improvement Project —City of Tukwila, Sensitive Areas Special Studies Review On March 20, 2006, a meeting regarding the I -405, I -5 to SR- 169 – Renton Nickel Improvement Project (Project) occurred between the Washington State Department of Transportation (WSDOT) Team and City of Tukwila staff. Included in the meeting topics was the Renton Nickel drainage design proposal. The Team conveyed that the Project is designed to be in compliance with the WSDOT Highway Runoff Manual (HRM), not the King County Surface Water Design Manual (KCSWDM). This memorandum summarizes preliminary stormwater planning and design within the Project limits. Note that the final design will continue to develop these preliminary stormwater management concepts following the requirements of the WSDOT HRM. Introduction The Project improvements include a combination of pavement widening and lane re- striping to create additional north and southbound general purpose and auxiliary lanes, bridge replacements, improvements to the SR -167/I -405 interchange, and reconfiguration of the stormwater drainage system. Highway widening involves cutting into banks and filling depressions within the highway prism. In some locations, fill will be placed in wetlands to widen the highway and to accommodate related highway infrastructure. The proposed stormwater drainage system for existing and new impervious surfaces includes stormwater collection and treatment facilities. The stormwater collection facilities include drainage ditches and pipes, ecology embankments, detention facilities, and flow control structures. The Project within the City of Tukwila is part of a design/build project, which means "contracting with a single entity for performing both design and construction on an entire project." The proposed Project requires working with a Multi- Agency Permitting (MAP) Team to obtain permits that focus primarily on water quality issues. The permits to be obtained for the Project include Clean Water Act Section 404 (U.S. Army Corps of Engineers [Corps]), Section 402 National Pollution Discharge Elimination System (NPDES) (Ecology), Section 401 Water Quality Certification (Ecology), Coastal Zone Management Act (Ecology), Hydraulic Project Approval (Washington Department of Fish and Wildlife [WDFW]), and Facility I.D. Milepost Net New Pavement (ac) Catchment Area (ac) Facility Type Volume Required (ac-ft) Remarks G1.1 0.2 1.05 1 11 Detention Pond 0 47 Discharges to a storm manhole, which drains to Gilliam Creek. G1.2 1.0 0.97 Detention Pond 0.41 Discharges to Nelson Side Channel and is outside the 100 -year flood plain. Total 1.05 2.08 0.88 Threshold Discharge Area Receiving Water Body Sub -Basin Limits Along 1-405 Unless Otherwise Noted G1.1 .. ..........................._... G1.2 .......................... Gilliam Creek tributary 1 - 5 to the Green River contributing to the east side of the ._....._....__............................_....._.._.........._.._ _...__..__....._......._.. - - - - ---...__... ............__........._....... Green River (including the Nelson Side Green River to the Channel) BNSF railroad tracks Shoreline Substantial Development Permit and Critical Areas Ordinance Approval (Cities of Renton and Tukwila). The Project activities in the City of Tukwila are located in the Lower Green River Sub -Basin of the Green - Duwamish River Watershed. This sub -basin is further divided into Threshold Discharge Areas (TDAs). Two TDAs are located in the City of Tukwila (Table 1). Table 1 WRIA 9— Green- Duwamish River Watershed, Lower Green River Sub -Basin Stormwater Management Existing stormwater collection and conveyance systems will be modified as required for the new roadway geometry and as required for stormwater management. Stormwater collection will assess three components: flow control, water quality treatment, and conveyance. Each stormwater component for the TDAs is addressed below. Flow Control Detention ponds are the preferred flow control best management practices (BMPs), although vaults may be used where right -of -way is limited. The two proposed ponds would provide a combined detention volume of 0.88 acre -feet. The proposed detention ponds are summarized below in Table 2. Table 2 Flow Control T: \Environmental (Project Level) \South_ Renton_ Nickel \12 - Permitting \Tukwila shoreline permit (Final)Wttachment 5 (TIR Stormwater) \Technical Information Report (Stormwater).doc 2 • Basin Name Facility 1.D. Milepost PGIS. Catchment Area (ac) . New Pavement Area (ac) Percent Treatment of • Pavement Area` Facility Type Facility Length Required (ft) . G1.1 RT G1.1 0.2 — 0.3 1.11 1.05 133% Ecology Embankment 500 G1.2 RT G1.2 0.8 —1.0 0.29 Ecology Embankment 162 Water Quality Totals 1.40 1.05 133% 662 r • Water Quality Treatment Enhanced water quality BMPs have been proposed for stormwater treatment. Ecology embankments are proposed extensively and some modifications have been made to enhance the treatment function. Overall, the runoff treatment would be provided to a minimum of 1.05 acres of new and existing pavement, or 133 percent of the pavement area specified for treatment by criteria. Existing ecology embankments would be reconstructed if they are to be removed by roadway widening. The runoff treatment facilities are summarized in Table 3. Table 3 Water Quality Treatment Conveyance The proposed Project retains much of the existing drainage structures and systems within the Project area. Closed conveyance systems would be used as the preferred conveyance method along the I -405 Corridor. New drainage structures added to the proposed edge of shoulders should be conveyed to the proposed stormwater management facilities. Summary Two TDAs, G1.1 and G1.2, are located within the City of Tukwila and the Project boundaries. Two detention ponds (2.08 acres) are the proposed stormwater flow control measure for the 1.5 -acre increase in new pavement. The proposed water quality treatment measure, ecology embankments, will treat 133 percent of the pavement area. The Project will retain many of the existing drainage features for conveyance of stormwater to the proposed detention ponds. T: \Environmental (Project Level)\South_ Renton _Nickel \l2 - Permitting \Tukwila shoreline permit (Final)\Attachment 5 (TIR Stormwater) \Technical Information Report (Stormwater).doc 3 ATTACHMENT 6 Wetland Sensitive Area Study RECEIVED MAY 2 3 2006 COMMUNITY DEVELOPMENT 1 -405, 1 -5 to SR- 169 — Renton Nickel Improvement Project City of Tukwila: Wetlands Sensitive Area Study Information in this report was directly derived from the 1-405, 1-5 to SR -169 — Renton Nickel Improvement Project Wetland /Biology Report dated May 2006. Washington State Department of Transportation May 2006 Table of Contents Table of Contents Acronyms and Abbreviations Glossary Summary S -1 1.0 Introduction 1 -1 1.1 Purpose and Goals 1 -1 1.2 Project Description 1 -1 2.0 Methods 2 -1 2.1 Wetland Identification, Delineation, and Classification 2 -1 2.2 Wetland Functional Assessment 2 -1 2.3 Agency Coordination and Field Review of Information 2 -2 3.0 Affected Environment 3 -1 3.1 Project Area Setting 3 -1 3.2 Wetland Determination 3 -1 3.2.1 Wetland Descriptions 3 -2 3.2.2 Wetland Rating and Classification Summary 3 -8 3.2.3 Wetland Functions and Values Summary 3 -8 4.0 Impacts 4 -1 4.1 Permanent Impacts 4 -1 4.2 Temporary Impacts 4 -1 4.3 Functions and Values 4 -1 5.0 Recommendations 5 -1 5.1 Avoidance and Minimization Measures 5 -1 5.2 Mitigation Sequence 5 -1 6.0 Preliminary Compensatory Mitigation 6 -1 7.0 References 7 -1 City of Tukwila: Wetlands Sensitive Area Study May 2006 City of Tukwila: Wetlands Sensitive Area Study List of Tables Table 2 -1 City of Tukwila Wetland Regulations 2 -3 Table 3 -1 Summary of Wetlands Located within the City of Tukwila 3 -2 Table 3 -2 Wetland Ratings, City of Tukwila 3 -8 Table 3 -3 Wetland Functions and Values 3 -9 Table 4 -1 Filled or Disturbed Wetlands, City of Tukwila 4 -2 Table 4 -2 Summary of City of Tukwila Impacted Wetland Area 4 -2 Table 5 -1 Avoidance and Minimization Measures 5 -1 List of Appendices Appendix A: Common and Taxonomic Names of Plants Observed in the Study Area Appendix B: Wetland Data Sheets Compact Disc (CD) Wetland Delineation Forms Functional Assessment Forms Wetland Rating Forms May 2006 ii Acronyms and Abbreviations Acronym Meaning BMP best management practice CEQ Council on Environmental Quality Corps United States Army Corps of Engineers Ecology Washington Department of Ecology FAC facultative FACU facultative upland FACW facultative wetland FEIS Final Environmental Impact Statement GMA Growth Management Act HOV high occupancy vehicle 1 -405 Interstate 405 1 -5 Interstate 5 MBI mitigation banking instrument MP milepost NI no indicator status NL not listed NMFS National Marine Fisheries Service NRCS Natural Resources Conservation Service NWI National Wetlands Inventory OBL obligate Project 1 -405, 1 -5 to SR- 169 — Renton Nickel Improvement Project PAB palustrine aquatic bed PEM palustrine emergent PFO palustrine forested POW palustrine open water PSS palustrine scrub -shrub ROW right of way SMA Shoreline Management Act TMC Tukwila Municipal Code UPL upland USFWS United States Fish and Wildlife Service City of Tukwila: Wetlands Sensitive Area Study May 2006 iii City of Tukwila: Wetlands Sensitive Area Study • • Acronym':, : ` 3• • ; ti Meaning: WAC WDFW WDNR WIS WSDOT t. Washington Administrative Code Washington Department of Fish and Wildlife Washington Department of Natural Resources wetland indicator status Washington State Department of Transportation May 2006 iv Glossary Word <: Meaning buffer A designated area along the buffer of a stream or wetland that is regulated to control the negative effects of adjacent development from intruding into the aquatic resource. emergent A plant that grows rooted in shallow water, the bulk of which emerges from the water and stands vertically. emergent wetland In the USFWS classification system (Cowardin et al. 1979), a wetland characterized by erect, rooted, herbaceous hydrophytes, excluding mosses and lichens. enhancement An improvement in the functions and values of an existing wetland typically through the planting of native plant species. fill material Any material placed in an area to increase surface elevation. forested wetland In the USFWS classification system (Cowardin et al. 1979), a wetland characterized by woody vegetation that is 20 feet tall or taller. groundwater That portion of the water below the ground surface that is under greater than atmospheric pressure. herbaceous Having the characteristics of an herb; a plant with no persistent woody stem above the ground. hydric soil A soil that formed under conditions of saturation, flooding, or ponding long enough to develop anaerobic conditions in the upper part. hydrology The science dealing with the properties, distribution, and circulation of water. in -kind compensation Compensation for lost wetland habitat with a replacement wetland of the same habitat type. mitigation Defined in WAC 197 -11 -766 as: (1) avoiding the impact altogether by not taking a certain action or parts of an action; (2) minimizing impacts by limiting the degree or magnitude of the action and its implementation, by using appropriate technology, or by taking affirmative steps to avoid or reduce impacts; (3) rectifying the impact by repairing, rehabilitating, or restoring the affected environment; (4) reducing or eliminating the impact over time by preservation and maintenance operations during the life of the action; (5) compensating for the impact by replacing, enhancing, or providing substitute resources or environments; and /or (6) monitoring the impact and taking appropriate corrective measures. City of Tukwila: Wetlands Sensitive Area Study May 2006 v City of Tukwila: Wetlands Sensitive Area Study • Word • , Meaning . • out -of -kind compensation Compensation for lost wetland habitat with a replacement wetland of a different habitat type. palustrine In the USFWS classification system (Cowardin et al. 1979), freshwater areas (having less than 0.5 parts per thousand ocean - derived salts) dominated by trees, shrubs, persistent emergents, mosses, or lichens. They can be non -tidal or tidal. Palustrine also includes wetlands lacking this vegetation but having the following characteristics: (1) area less than 20 acres; (2) no active wave - formed or bedrock shoreline; and (3) water depth in the deepest part is less than 6.6 feet at low water. project area The entire area within the 1 -405, 1 -5 to SR- 169 — Renton Nickel Improvement Project. restoration To improve a disturbed or altered wetland by returning wetland parameters that may be missing. The restoration may return a wetland habitat to its original state. saturated soil conditions A condition in which all easily drained voids (pores between soil particles) in the root zone are temporarily or permanently filled with water to the soil surface at pressures greater than atmospheric. scrub -shrub In the USFWS classification system (Cowardin et al. 1979), areas dominated by woody vegetation less than 20 feet tall. The species include tree shrubs, young trees, and trees or shrubs that are stunted because of environmental conditions. soil matrix The portion of a given soil having the dominant color. In most cases, the matrix will be the portion of the soil having more than 50 percent of the same color. study area Areas that were specifically evaluated for the presence of wetlands as defined by the Scope of Work for this project. This area is similar to the project area, but only includes areas within the 1 -405 right of way and stormwater facilities footprints. wetland Wetlands are formally defined by the Corps (Federal Register 1982), the U.S. Environmental Protection Agency (Federal Register 1988), the Washington State SMA of 1971 (Ecology 1991), and the GMA (Ecology 1992) as: ... those areas that are inundated or saturated by surface or groundwater at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas. (Federal Register 1982, 1986). May 2006 vi Word Meaning wetland, continued The SMA and the GMA definitions add: Wetlands do not include those artificial wetlands intentionally created from non - wetland sites, including, but not limited to, irrigation and drainage ditches, grass - lined swales, canals, detention facilities, wastewater treatment facilities, farm ponds, and landscape amenities, or those wetlands created after July 1, 1990 that were unintentionally created as a result of the construction of a road, street, or highway. Wetlands may include those artificially- created wetlands intentionally created from non - wetland areas to mitigate the conversion of wetlands. wetland boundary The point on the ground at which a shift from wetlands to non - wetlands or aquatic habitat occurs. These boundaries usually follow topographic contours. wetland hydrology The total of all wetness characteristics in areas that are inundated or have saturated soils for a sufficient duration to support hydrophytic vegetation. wetland indicator status Categories of plant species based upon the estimated (WIS) probabilities (expressed as a frequency of occurrence) of a species occurring in a wetland or non - wetland. Wetland indicator status categories include the following: Obligate (OBL): species that almost always occur wetlands under natural conditions (estimated probability is greater than 99 percent). City of Tukwila: Wetlands Sensitive Area Study Facultative wetland (FACW): species that usually occur in wetlands (estimated probability is 67 to 99 percent), but are occasionally found in non - wetlands. Facultative (FAC): species that are equally likely to occur in wetlands (estimated probability is 34 to 66 percent) or non - wetlands. Facultative upland (FACU): species that usually occur in non - wetlands (estimated probability is 67 to 99 percent), but are occasionally found in wetlands. Upland (UPL): species that almost always occur in non - wetlands under normal conditions (estimated probability is greater than 99 percent). Not listed (NL): species that are not listed and are presumed to be upland species. May 2006 vii Word Meaning wetland indicator status (WIS), continued City of Tukwila: Wetlands Sensitive Area Study No indicator status (NI): species that have not yet been evaluated. A ( +) or ( -) following the WIS of a given species signifies a greater or lesser likelihood of being found in wetland conditions. May 2006 viii Summary The Washington State Department of Transportation (WSDOT) is planning construction to improve Interstate 405 (1 -405) between Interstate 5 (1 -5) in the City of Tukwila and the Cedar River in the City of Renton in King County, Washington. WSDOT project activities near the shoreline of the Green River in the City of Tukwila, require a Wetland Sensitive Area Study as part of the City of Tukwila's Shoreline Permit process. City of Tukwila wetlands that occur within the 1 -405, 1 -5 to SR- 169 — Renton Nickel Improvement Project (Project) are summarized in this document. Nine wetlands were delineated in the City of Tukwila by WSDOT. Overall, wetlands in the affected environment are generally degraded with a history of disturbance due to road or interchange construction and past development. The wetlands are grouped into three wetland types: emergent, scrub - shrub, and forested. Emergent wetlands are primarily dominated by non - native vegetation such as reed canarygrass, bentgrass, Himalayan blackberry, and soft rush. The majority of wetlands in the affected environment are emergent. Scrub -shrub and forested wetlands are characterized by deciduous species such as red alder, willow, and black cottonwood. Five wetlands in the City of Tukwila are Category IV wetlands according to the Washington Department of Ecology Wetlands Rating System. Four Category III wetlands also occur within the study area. There are no Category I or II wetlands in the City of Tukwila study area. Construction would result in the loss (filling) or temporarily disturbance of an estimated 0.18 acres of wetland. Of this total, approximately 0.15 acres would be permanently filled and 0.03 acres would be temporarily disturbed during construction and subsequently restored. Temporary construction impacts may include sediment transport and erosion from disturbed soils on site due to construction activities. During the preliminary design process, WSDOT made several adjustments to avoid or minimize impacts to wetlands and their buffers. The most common avoidance and minimization measures included moving stormwater facilities and requiring retaining walls to reduce the extent of fill necessary to construct the road improvements. WSDOT proposes several measures to compensate for impacted wetland functions and values using a combination of wetland creation and enhancement of existing degraded wetlands at an off -site location. WSDOT will also implement drainage system improvements to provide stormwater treatment and detention within each basin. During project -level design, WSDOT will identify specific best management practices (BMPs) and other measures to be incorporated into construction specifications developed during the final design process. BMPs will be implemented during construction and operation of the Project to minimize sedimentation and /or contamination of wetlands. Prior to final development of project - specific BMPs, WSDOT will meet with federal, state, and local agencies to identify mitigation priorities and options for avoiding or minimizing wetland losses, and to compensate for any losses. In accordance with Council on Environmental Quality (CEQ) regulations pertaining to mitigation, BMP sequencing includes: 1. Avoidance measures that eliminate the onset of impacts. City of Tukwila: Wetlands Sensitive Area Study May 2006 S -1 • • 2. Minimization measures proposed to decrease the magnitude or severity of the impact. 3. Rectification measures that are part of the Project and repair or restore resources. 4. Reduction or elimination measures that soften the impacts. 5. Compensation measures designed to offset unavoidable adverse impacts. 6. Monitoring measures that become part of the project to ensure that resources are not further degraded by the Project. City of Tukwila: Wetlands Sensitive Area Study May 2006 S -2 1.0 Introduction City of Tukwila: Wetlands Sensitive Area Study 1.1 Purpose and Goals This Wetlands Sensitive Area Study has been prepared to meet requirements for the City of Tukwila Shoreline Permit. Project biologists completed wetland investigations and prepared this report. The objectives of the wetland study include: • Determine the location and condition of wetlands within the City of Tukwila. • Evaluate project - related impacts. • Outline appropriate measures for project planning and to help the project team meet federal, state, and local regulatory requirements. 1.2 Project Description The Project is a WSDOT project that will result in improvements to the 1-405 corridor in and around the City of Tukwila, Washington. The project area begins just east of the I- 5/1 -405 interchange and extends east past the border between Tukwila and Renton. Improvements will also be made to local roads, freeway structures, and the stormwater drainage system associated with the Project. The Project also includes new stormwater management facilities and a substantial upgrade of existing drainage structures and systems. May 2006 1 -1 2.0 Methods This section describes the methodology used for preparing this Wetlands Sensitive Area Study, including the review of existing information and field investigation procedures. These methods are consistent with current federal, WSDOT, and other state agency requirements. 2.1 Wetland Identification, Delineation, and Classification Wetlands were delineated using the Routine Determination Method outlined in the Washington State Wetlands Identification and Delineation Manual (Ecology 1997), a manual consistent with the Corps of Engineers Wetlands Delineation Manual (Environmental Laboratory 1987). Wetlands were then classified according to the U.S. Fish and Wildlife Service (USFWS) classification system (Cowardin et al. 1979) and rated using the Washington State Wetland Rating System for Western Washington, Revised developed by the Washington State Department of Ecology (Ecology; Hruby 2004). Wetlands were also rated according to the local jurisdiction's sensitive or critical areas ordinance (Table 2 -1). All wetlands located in the WSDOT right -of -way (ROW) in the study area were delineated and classified. In general, wetland delineation consisted of three main tasks: (1) assessing vegetation, soil, and hydrologic characteristics to identify areas meeting the wetland determination criteria; (2) evaluating constructed drainage features to determine if they would be regulated as wetlands; and (3) marking wetland boundaries. Common plant names are used throughout this report. A list of corresponding taxonomic names is provided in Appendix A. 2.2 Wetland Functional Assessment Wetlands perform a variety of biological, physical (hydrologic), and chemical (water quality) functions. For this Project, wetland functions were evaluated using the WSDOT Wetland Functions Characterization Tool for Linear Projects manual (Null et al. 2000) and were assessed based on best professional judgment. The manual is a qualitative tool designed for linear projects to enable the rapid documentation and characterization of the functions provided by a given wetland. The methodology does not assign quantitative values to a particular function, but identifies functional strengths and weaknesses to help guide management decisions and aid in mitigation choices. Wetland functions are divided into the following 14 categories: • Flood flow alteration • Sediment removal • Nutrient and toxicant removal • Erosion control and shoreline stabilization • Production of organic matter and its export • General habitat suitability • Habitat for aquatic invertebrates City of Tukwila: Wetlands Sensitive Area Study May 2006 2 -1 City of Tukwila: Wetlands Sensitive Area Study • • • Habitat for amphibians • Habitat for wetland- associated mammals • Habitat for wetland- associated birds • General fish habitat • Native plant richness • Educational or scientific value • Uniqueness and heritage 2.3 Agency Coordination and Field Review of Information The following data sources were reviewed for information on vegetation patterns, topography, drainage, and potential or known wetlands or wildlife habitats in the Project vicinity: • National Wetland Inventory (NWI) Maps (USFWS 1987 and 1988) • U.S. Geological Survey 1:24,000 Topographic Maps • Natural Resources Conservation Service (NRCS) soils surveys and county hydric soils lists (NRCS 1995 and Snyder et al. 1973) • King County Sensitive Areas Map Folio (King County 1990) • City of Tukwila Wetland/Watercourse Buffer Map (City of Tukwila 2004) • Correspondence with Services: USFWS, National Marine Fisheries Service (NMFS), Washington Department of Fish and Wildlife (WDFW), and Washington Department of Natural Resources (WDNR) Wetlands and associated buffers are regulated by the local jurisdiction. For the Project, the local jurisdictions include the City of Tukwila. Project biologists rated the wetlands based on the pertinent city critical areas regulations, which then determined wetland buffer widths and mitigation ratios. Wetland buffers are vegetated upland areas immediately adjacent to wetlands that protect the many functions and values of wetlands. Scientific literature indicates that buffer widths are directly related to the degree of protection for a particular function. The following sections extract wetland information contained in the critical areas ordinances of Tukwila. The full text of critical areas regulations should be consulted during application. City of Tukwila As required by the Growth Management Act (GMA), the City of Tukwila updated the Tukwila Municipal Code (TMC) Chapter 18.45 Environmentally Sensitive Areas in accordance with best available science in December 2004. TMC 18.45 classifies wetlands into three types as described below. Type 1 wetlands meet any of the following criteria: • Contain species listed by the federal government or state as endangered or threatened, or the presence of critical or outstanding habitat for listed species May 2006 2 -2 City of Tukwila: Wetlands Sensitive Area Study • • • Have 40 to 60 percent permanent open water in dispersed patches with two or more classes of vegetation • Are equal to or greater than 5 acres in size and have three or more wetland classes, one of which may be substituted by permanent or open water • Documented as regionally significant waterfowl or shorebird areas by WDFW Type 2 wetlands meet any of the following criteria: • Are equal to or greater than 1 acre in size • Have three or more wetland classes and are less than 5 acres • Contain nesting sites for priority species as listed by the WDFW • Hydrologically connected (non - isolated) to a Type 1 or Type 2 watercourse Type 3 wetlands are those wetlands not meeting the definition of Type 1 or 2 wetlands that are greater than 1,000 square feet (sf) and less than 1 acre in size with two or fewer wetland classes. According to the TMC 18.45.080, buffers from the wetland edge are required (see Table 2 -1). The TMC also requires that commercial and industrial buildings shall be set back 15 feet from the buffer's edge, and all other development be set back 10 feet (TMC 18.45.080 [F]). Impacts to wetlands are to be mitigated according to the provisions under TMC 18.45.090: Wetland Uses, Alterations, and Mitigation. Section D2 states that "in order to achieve the City's goal of no net loss of wetland functions and acreage, alteration of wetlands will require the applicant to provide a restoration or creation plan." Mitigation shall be implemented through the creation of wetlands (from non - wetland areas) or through the restoration of degraded wetlands. Table 2 -1 provides a summary of the City of Tukwila's wetland buffer requirements. Table 2 -1 City of Tukwila Wetland Regulations Buffer Wetland Classification Requirement Type 1 100 feet Type 2 80 feet Type 3 50 feet May 2006 2 -3 • 3.0 Affected Environment The following sections describe existing environmental information for the project vicinity and the findings of the wetland determinations made in the field. Wetland ratings established by state and local jurisdictions, wetland classifications, wetland functions and values, and wetland proximity to streams are also described below. The NWI (USFWS 1987 and 1988) and King County Sensitive Areas Map Folio (King County 1990) contain few mapped wetlands in the study area. Palustrine forested (PFO) and palustrine scrub -shrub (PSS) wetlands identified in these documents are associated with the Green River basin. These resources also contain maps of a few smaller palustrine emergent (PEM) and /or PSS wetlands. The City of Tukwila Wetland/Watercourse Buffer Map (City of Tukwila 2004) shows locations of wetlands and streams in the city. The map identifies two wetlands associated with Gilliam Creek that are not given specific names. The wetlands are located south of the 1 -5 northbound to 1 -405 northbound ramp, and west of 61st Avenue South. The wetlands were identified and delineated by project biologists. The U.S. Soil Conservation Service, now called the NRCS, has mapped the majority of the project area as Urban land soils. Two soil units (Puget silty clay loam and Tukwila Muck) occur in the project vicinity and are classified as hydric soils. 3.1 Project Area Setting The Project area is located within the City of Tukwila. The majority of the Project area where road improvements will occur is WSDOT ROW, with small portions in city, county, or private ownership. The topography in the Project vicinity is typical of lowland areas south of Lake Washington. The entire Project lies within the western hemlock vegetation zone of western Washington (Franklin and Dyrness 1988). Vegetation is dominated by needle - leaved, evergreen tree species such as Douglas -fir, western hemlock, and western red cedar. Other dominant tree species include red alder and big -leaf maple, which occur in scattered patches of deciduous forest habitats in the vicinity of the Project. Uplands in the Project vicinity consist of areas adjacent to the existing roadway, residential properties, and disturbed areas. Vegetation in the ROW upland areas includes species typically associated with disturbance and past land - clearing activities. Himalayan blackberry, bentgrass, fescue, quackgrass, and other weeds have colonized these areas. Other uplands are landscaped residential areas or undisturbed mixed deciduous forest dominated by big -leaf maple, black cottonwood, Douglas -fir, and red alder. Dominant native understory shrubs include snowberry, Indian -plum, and beaked hazelnut. Upland soils in the study area have been intensively disturbed by roadway construction and maintenance, and ditching. 3.2 Wetland Determination Project biologists delineated nine wetlands totaling approximately 3.75 acres within the City of Tukwila. Table 3 -1 presents a summary of these wetlands. The wetland areas shown represent the total area of wetland delineated. City of Tukwila: Wetlands Sensitive Area Study May 2006 3 -1 Wetland identifier . -. - Drainage Basin ' (� Status Riparian • Association — 0.15R Green River 0.52 PEM 0.05 PEM 0.1 R Green River 0.25M Green River 0.07 PEM 0.3R Green River 1.29 PFO 0.4L Green River 0.11 PEM Z 0.5L Green River r 0.05 PEM 0.6L Green River - -' 0.17 r PSS — 0.94L — — — Green River 0.48 PSS 1 0.9R Green River 1.01 PAB • • Table 3-1 Summary of Wetlands Located within the City of Tukwila ' PAB - Palustrine Aquatic Bed; PEM - Palustrine Emergent; PFO - Palustrine Forested; PSS - Palustrine Scrub - Shrub. These terms are defined in the glossary of this document. 2 Status describes the nature of each wetland as follows: D - ditch, N - natural wetland with stormwater detention capabilities, 0 - other wetland 3.2.1 Wetland Descriptions The following sections describe the wetlands of the Green River drainage basin inside the City of Tukwila. Wetlands are described in location sequence from south to north. Each wetland identified in the field was assigned a number based on its milepost (MP) location within the study area, starting with MP 0.0 at the west end of the study area and extending east to the City of Tukwila /Renton border. The wetland number also includes an "L" if the wetland is located on the left (north) side of 1 -405 and an "R" if it is located on the right (south) side of 1-405. For example, a wetland found at the midpoint between MP 0.5 and MP 1.0 on the left side of 1-405 would be Wetland 0.75L. Nine wetlands were delineated within relatively uniform areas of vegetation in wetland and upland areas. The majority of the wetland descriptions reflect late winter conditions observed when field investigations were conducted in early January to late February. Appendix B contains data forms corresponding to formal data plots, state and local wetland rating forms, and functional assessment forms. A glossary defining wetland classification and other terms is provided at the beginning of this report. Green River Wetlands in the Green River drainage basin are generally located between the western project boundary or 1 -5 and the Tukwila /Renton border at approximately MP 0.0 to 1.2. Within this section, transportation improvements include widening of sections of both the north and southbound lanes and the construction of retaining walls. Wetlands in the Green River drainage basin are characterized below. City of Tukwila: Wetlands Sensitive Area Study May 2006 3 -2 City of Tukwila: Wetlands Sensitive Area Study • • Wetland 0.1R Size and location: The 0.05 -acre wetland is located in the southeast portion of the I- 405/1-5 interchange, between 1 -5 northbound lanes and the 1 -5 northbound to SR -518 ramp. The wetland is a small, isolated depression that receives road runoff. Vegetation: Dominated by reed canarygrass, soft rush, Himalayan blackberry, and bentgrass. Soils: Soils consist of an A layer of very dark brown (10YR 2/2) sandy loam extending to 8 inches, over a B horizon of dark gray (2.5Y 4/1) clay loam with brown (7.5YR 4/4) mottles. Hydrology. Soils saturated to the surface in the soil pit, with free water present at 15 inches deep. Areas of standing water are present elsewhere in wetland. Wetland Classification: Wetland 0.1 R is a PEM wetland that is seasonally saturated /inundated. It is a Category IV under Ecology's rating system, and a Type 3 under the City of Tukwila's sensitive areas regulations. Wetland Functional Assessment Primary functions of Wetland 0.1R are flood flow alteration and sediment removal. The wetland receives road runoff from 1-405 and has a long duration for water retention. Wetland Determination: The boundary of Wetland 0.1R was flagged where indicators of wetland vegetation, hydric soil, and wetland hydrology were present. These corresponded to the base of fill for adjacent roads and topographic changes. Adjacent uplands were distinguished from the wetland by the lack of hydric soils or indicators of wetland hydrology, and the presence of upland plant species. Wetland 0.15R Size and location: The 0.52 -acre wetland is located north of Southcenter Parkway and south of 1 -5 northbound to 1 -405 northbound ramp. Wetland 0.15R is a previous WSDOT mitigation area that is associated with Gilliam Creek. Vegetation: Dominated by reed canarygrass. Soils: A layer of very dark gray (2.5Y 3/1) clay loam extending to 7 inches, over a B horizon of very dark gray (2.5Y 3/1) clay loam with dark brown (7.5YR 3/3) mottles. Hydrology. Soils are saturated to the surface, with free water occurring at a depth of 6 inches. Areas of ponding are present elsewhere in the wetland. Wetland Classification: Wetland 0.15R is a PEM wetland that is seasonally saturated /inundated. It is a Category III wetland under Ecology's rating system and a Type 2 under the City of Tukwila's sensitive areas regulations. Wetland Functional Assessment Primary functions of Wetland 0.15R are flood flow alteration, sediment removal, nutrient and toxicant removal, and production and export of organic matter. The wetland receives road runoff from adjacent roads, contains dense herbaceous vegetation, and has a surface water connection to a stream. Wetland Determination: The boundary of Wetland 0.15R was flagged where indicators of wetland vegetation, hydric soil, and wetland hydrology were present. These corresponded to the base of the fill for adjacent roads or topographical changes. Adjacent uplands were distinguished from the wetland by the lack of soil saturation or hydric soil indicators, and the presence of upland plant species. May 2006 3 -3 • • Wetland 0.25M Size and location: The 0.07 -acre wetland is located in the median between 1 -405 northbound lanes and the 1 -405 to 1 -5 northbound high occupancy vehicle (HOV) ramp. Wetland 0.25M is a maintained swale that receives road runoff and discharges to a culvert. Vegetation: Dominated by reed canarygrass and red alder saplings. Soils: An Al horizon of very dark gray (10YR 3/1) sandy loam extending to 4 inches, over an A2 horizon of black (10YR 2/1) sandy loam with dark yellowish brown (10YR 4/4) mottles. The B horizon, extending from 8 to 13 inches, consists of very dark gray (2.5Y 3/1) sandy loam with dark yellowish brown (10YR 4/4) mottles. Soils were too compact to sample below 13 inches deep. Hydrology. Soils are saturated to the surface and free water is present at a depth of 9 inches. The area is likely inundated during the early portion of the growing season. Wetland Classification: Wetland 0.25M is a broad, swale PEM wetland that is seasonally inundated /saturated. It is a Category IV wetland under Ecology's rating system and a Type 3 under the City of Tukwila's sensitive areas regulations. Wetland Functional Assessment: Primary functions of Wetland 0.25M are sediment removal, and production and export of organic matter. The wetland receives road runoff, contains dense herbaceous vegetation, and has a surface water connection to a stream. Wetland Determination: The boundary of Wetland 0.25M was flagged where indicators of wetland vegetation, hydric soil, and wetland hydrology were present. These corresponded to the base of the fill for adjacent roads or topographical changes. Adjacent uplands were distinguished from the wetland by the lack of soil saturation or hydric soil indicators. Wetland 0.3R Az cut, e ` ' t Size and location: The 1.29 -acre wetland is located south of 1 -405 northbound lanes, and northwest of Tukwila Parkway /61st Avenue South intersection. The wetland is located in a depression and is associated with Gilliam Creek. Vegetation: Dominated by reed canarygrass in the emergent area, and red alder, Himalayan blackberry, western red cedar, and Pacific willow in the forested area. Soils: Soils in the eastern portion of the wetland are characterized by a dark grayish brown (10YR 4/2) sandy loam extending to 10 inches deep, over a subsoil layer of olive gray (5Y 5/2) loam with dark yellowish brown (10YR 4/4) mottles. Soils in the western portion of the wetland are a very dark grayish brown (10YR 3/2) silty clay loam extending to 6 inches deep, over a subsoil layer of very dark gray (2.5Y 3/1) clay loam with dark yellowish brown (10YR 4/4) mottles. Hydrology. Soils are saturated to the surface in both test pits. Large areas of standing water are present elsewhere in the wetland. Wetland Classification: Wetland 0.3R is a PFO wetland that is seasonally inundated. It is a Category III under Ecology's rating system and a Type 2 under the City of Tukwila's sensitive areas regulations. Wetland Functional Assessment. Primary functions of Wetland 0.3R are flood flow alteration, sediment removal, nutrient and toxicant removal, and production and City of Tukwila: Wetlands Sensitive Area Study May 2006 3 -4 City of Tukwila: Wetlands Sensitive Area Study • export of organic matter. The wetland receives road runoff, contains dense herbaceous and deciduous vegetation, and has a surface water connection to Gilliam Creek. Additionally, the wetland has fine- grained mineral soils and large depression areas. Wetland Determination: The boundary of Wetland 0.3R was flagged where indicators of wetland vegetation, hydric soil, and wetland hydrology were present. These corresponded to the base of the fill for adjacent roads or topographical changes. Adjacent uplands were distinguished from the wetland by the lack of soil saturation or hydric soil indicators, and the presence of upland plant species. Wetland 0.4L L -1 q f , ( P Size and location: The 0.11 -acre wetland is located southeast of the Southcenter Boulevard /61st Avenue South intersection. Wetland 0.4L is a long, narrow ditch adjacent to 1 -405 southbound lanes. Vegetation: Dominated by reed canarygrass, common cattail, and bentgrass. Soils: An A horizon of black (5Y 2.5/2) loamy sand extending to 4 inches deep, over a B horizon of light olive gray (5Y 6/2) sand with yellowish brown (10YR 5/6) mottles. The soil below 8 inches was too compact to sample. Hydrology. Saturated soil at the surface with free water within 3 inches of the surface in the soil pit. Wetland Classification: Wetland 0.4L is a ditch- associated PEM wetland that is seasonally saturated /inundated. It is a Category IV under Ecology's rating system and a Type 3 under the City of Tukwila's sensitive areas regulations. Wetland Functional Assessment The primary function of Wetland 0.4L is sediment removal. The wetland receives road runoff and contains dense herbaceous vegetation. Wetland Determination: The boundary of Wetland 0.4L was flagged where indicators of wetland vegetation, hydric soil, and wetland hydrology were present. These corresponded to the base of fill for adjacent roads and topographic changes. Adjacent uplands were distinguished from the wetland by the lack of soil saturation or hydric soil indicators, and the presence of upland plant species. Wetland 0.5L 2 1 n Q Size and location: The 0.05 -acre wetland is located between Southcenter Boulevard and southbound 1-405. The wetland is a long, narrow ditch that is situated adjacent to 1 -405 southbound lanes. Vegetation: Dominated by reed canarygrass and soft rush. Soils: Soils in the wetland consist of an A horizon, extending from the surface to 10 inches deep, of a black (10YR 2/1) sandy loam. The B horizon extends from 10 to 16 inches deep and is a dark gray (Gley 1 4/1) gravely loamy sand with yellowish brown (10YR 5/8) mottles. Hydrology. Soils were saturated at the surface and free water was present within 4 inches of the surface of the soil pit. Wetland Classification: Wetland 0.5L is a PEM ditch - associated wetland that is seasonally saturated /inundated. It is a Category IV wetland under Ecology's rating system and a Type 3 under the City of Tukwila's sensitive areas regulations. May 2006 3 -5 • • Wetland Functional Assessment The primary functions of Wetland 0.5L are sediment removal and nutrient and toxicant removal. The wetland receives stormwater runoff, contains dense herbaceous vegetation, and water is exported via an unconstricted surface water outlet. Wetland Determination: The boundary of Wetland 0.5L was flagged where indicators of wetland vegetation, hydric soil, and wetland hydrology were present. These corresponded to the base of fill for adjacent roads and topographic changes. Adjacent uplands were distinguished from the wetland by the lack of soil saturation or hydric soil indicators. Wetland 0.6L 1 LI 0 y I l i Size and location: The 0.17 -acre wetland is located southwest of the Christensen Road /Southcenter Boulevard intersection situated between Southcenter Boulevard and southbound 1 -405. Wetland 0.6L is a long ditch that receives water from stormwater runoff and precipitation. It is associated with an unnamed tributary of Gilliam Creek. Vegetation: Dominated by reed canarygrass, black cottonwood, willow, soft rush, and Himalayan blackberry. Soils: Soils in the wetland consist of an A horizon, extending from the surface to 10 inches deep, comprised of a dark gray (10YR 4/1) loamy sand with dark yellowish brown (10YR 3/6) mottles. The B horizon, extending from 10 to 16 inches deep, is a loamy sand with a dominant brown (10YR 4/3) and subdominant dark greenish gray (Gley 1 4 /5GY) soil matrix with dark yellowish brown (10YR 3/6) mottles. Hydrology. Soils were saturated at the surface and free water was present within 4 inches of the surface of the soil pit. Standing water was present in a large portion of the wetland. Wetland Classification: Wetland 0.6L is a PSS wetland that is seasonally saturated. It is a Category III under Ecology's rating system and a Type 3 under the City of Tukwila's sensitive areas regulations. Wetland Functional Assessment Primary functions of Wetland 0.6L are sediment and toxicant removal and production and export of organic matter. The wetland contains dense shrub and herbaceous vegetation and has a surface water connection to a stream. Wetland Determination: The boundary of Wetland 0.6L was flagged where indicators of wetland vegetation, hydric soil, and wetland hydrology were present. These corresponded primarily to the base of fill for adjacent roads and topographical changes. Adjacent uplands were distinguished from the wetland by the lack of hydric soil indicators and the presence of upland plant species. Wetland 0.9R Size and location: The 1.01 -acre wetland is located south of the southbound interchange of SR -181 from 1 -405 and receives highway stormwater runoff. The wetland includes a large area of open water. Vegetation: The area immediately adjacent to the open water is dominated by Himalayan blackberry, with spikerush, black cottonwood, and reed canarygrass occurring near the open water edges. City of Tukwila: Wetlands Sensitive Area Study May 2006 3 -6 S City of Tukwila: Wetlands Sensitive Area Study Soils: An Al horizon of (10YR 2/1) sandy loam extends 2 inches deep, over an A2 horizon of (2.5Y 3/2) sandy loam with brown (10YR 4/4) mottles. Below 10 inches, the B horizon consists of sandy loam (2.5Y 4/4) containing cobbles and sand with brown (10YR 4/2) mottles. Hydrology: Saturated soils to the surface and free water present within 8 inches of the surface of the soil pit. The wetland open water area contained standing water several feet deep. Wetland Classification: Wetland 0.9R is a palustrine open water (POW) wetland that is seasonally inundated. It is a Category III wetland under Ecology's rating system and a Category 2 under the City of Tukwila's critical areas regulations. Wetland Functional Assessment: Primary functions of Wetland 0.9R are flood flow alteration, sediment removal, and wildlife habitat. This wetland provides the majority of functions evaluated under Null et al. (2000). The wetland receives road runoff and contains aquatic vegetation, and its location near the Green River corridor provides adequate wildlife habitat. Wetland Determination: The boundary of Wetland 0.9R was flagged where indicators of wetland vegetation, hydric soil, and wetland hydrology were present. These corresponded to changes in topography. Adjacent uplands were distinguished from the wetland by the presence of upland plant species and change in topography. Wetland 0.94L Size and location: The 0.48 -acre wetland is located north of Southcenter Boulevard, west of Interurban Avenue South, and east of the Green River. The wetland is located in a mitigation site that was constructed in the upland and exports water directly to the Green River. Vegetation: Dominated by red -osier dogwood, bluegrass, and red alder with smaller amounts of black cottonwood and thistle. Soils: A surface layer of black (10YR 2/1) silty loam extending to 3 inches deep, over a subsoil layer of brown (10YR 4/3) silty loam. Hydrology. Soils were not saturated in the soil pit. Some areas of standing water are present in the wetland. Wetland Classification: Wetland 0.94L is a PSS wetland that is seasonally saturated. It is a Category III wetland under Ecology's rating system and a Type 2 under the City of Tukwila's sensitive areas regulations. Wetland Functional Assessment: Primary functions of Wetland 0.94L are production and export of organic matter, as well as sediment and toxicant removal. The wetland receives road runoff from inletting culverts and exports water via a surface water connection to the Green River. Downed wood was present as a result of beaver activity; however, it did not appear to be recent. Wetland Determination: The boundary of Wetland 0.94L was flagged where indicators of wetland vegetation, hydric soil, and indicators of wetland hydrology were present. These corresponded primarily to the base of fill for adjacent roads and topographical changes. Adjacent uplands were distinguished from the wetland by the lack of wetland hydrology indicators and the presence of upland plant species. May 2006 3 -7 Scrub -Shrub • • 3.2.2 Wetland Rating and Classification Summary Table 3 -2 provides a summary of the wetland ratings identified in the wetland descriptions and identifies local wetland buffer requirements. Table 3 -2 Wetland Ratings, City of Tukwila PAB - Palustrine Aquatic Bed; PEM - Palustrine Emergent; PFO - Palustrine F d P SS oreste; - Palus 3.2.3 Wetland Functions and Values Summary Table 3 -3 summarizes the wetland functional assessment for each wetland as determined on the functional assessment data sheets (Appendix B). Many of the nine wetlands within the entire study area are small (less than one -third acre). Generally, larger wetlands in the study area are typically located in flat, low -lying areas. The smaller wetlands tend to be located in small closed topographic depressions, or are hydrologically connected (linked to or associated with a water source) to hillside seeps or roadside drainage ditches. Due to their size and topographic location, larger wetlands within the study area are more likely to provide a higher number and higher value of beneficial functions than smaller wetlands. The study area is located within the Urban Growth Area, with most of the study area comprised of existing road ROW. All of the wetlands within the study area have been disturbed to some extent by development, including the construction of 1 -405 and commercial or residential development in the surrounding area. Consequently, the wetlands are compromised in their ability to provide functions and values. More than one -half of the wetlands were found to have the potential to provide valuable stormwater management functions including: flood flow alteration, sediment removal, nutrient and toxicant removal, and erosion control. Some of these areas have constricted outlets and dense woody vegetation, slowing floodwaters during storm events. Most wetlands have dense herbaceous vegetation that can remove sediment and toxicants present in road runoff. City of Tukwila: Wetlands Sensitive Area Study May 2006 3 -8 Local Identified on Washington Jurisdiction 1 Local Wetland Area Cowardin State , Rating - Local Jurisdiction Buffer Requirement I Jurisdiction Wetland Identifier (acres) Classification (Ecology) and Rating (feet) i Inventory? 0.15R 0.52 PEM III Tukwila -2 80 Y 0.1R 0.05 PEM IV Tukwila -3 50 N 0.25M 0.07 PEM IV Tukwila -3 50 N 0.3R L PFO III Tukwila -2 80 Y 1.29 0.4L 0.11 PEM IV Tukwila -3 50 N — 0.5L 0.05 PEM IV Tukwila -3 50 N 0.6L 1 0.17 PSS IV Tukwila -3 50 N - -- 0.94L I 0.48 PSS III Tukwila -2 80 N 0.9R 1.01 PAB III Tukwila-2 80 — TOTAL 3.75 Scrub -Shrub • • 3.2.2 Wetland Rating and Classification Summary Table 3 -2 provides a summary of the wetland ratings identified in the wetland descriptions and identifies local wetland buffer requirements. Table 3 -2 Wetland Ratings, City of Tukwila PAB - Palustrine Aquatic Bed; PEM - Palustrine Emergent; PFO - Palustrine F d P SS oreste; - Palus 3.2.3 Wetland Functions and Values Summary Table 3 -3 summarizes the wetland functional assessment for each wetland as determined on the functional assessment data sheets (Appendix B). Many of the nine wetlands within the entire study area are small (less than one -third acre). Generally, larger wetlands in the study area are typically located in flat, low -lying areas. The smaller wetlands tend to be located in small closed topographic depressions, or are hydrologically connected (linked to or associated with a water source) to hillside seeps or roadside drainage ditches. Due to their size and topographic location, larger wetlands within the study area are more likely to provide a higher number and higher value of beneficial functions than smaller wetlands. The study area is located within the Urban Growth Area, with most of the study area comprised of existing road ROW. All of the wetlands within the study area have been disturbed to some extent by development, including the construction of 1 -405 and commercial or residential development in the surrounding area. Consequently, the wetlands are compromised in their ability to provide functions and values. More than one -half of the wetlands were found to have the potential to provide valuable stormwater management functions including: flood flow alteration, sediment removal, nutrient and toxicant removal, and erosion control. Some of these areas have constricted outlets and dense woody vegetation, slowing floodwaters during storm events. Most wetlands have dense herbaceous vegetation that can remove sediment and toxicants present in road runoff. City of Tukwila: Wetlands Sensitive Area Study May 2006 3 -8 Wetland Identifier t imainpiterj‘ ..,U1pJENI03 • t. •• . aillOgie07033 " • • " • r. u � � joi •.; wows It"itio'"ttif•pas Nutrient and Toxicant RemoVAI ' • Erosion Control and Shoral*.§tabilization Production and Export of PrOanic4iager-1 1L t1H !memo Habitat for Aquatic Invertebrates Habitat.forAmphibians Habitatfor Wetland- Associated Mammals . Habitat foe: Wetland- Associated Birds •.• . • Genera! 9sts Habitat 1 Native Plant Richness Educational or Scientific Value • • Pue iieuenbuin 0.15R 0.52 PEM III X x x X ' ✓ X ✓ ✓ ✓ 0.1R 0.05 PEM IV X X 0.25M 0.07 PEM IV X 0.3R 1.29 PFO III X - - X - -... - X X ________ v X X X ✓ t - X ✓ ✓ X ✓ t____ 1 ✓ _ X ✓ - - - -- ✓ ✓ ✓ ✓ ✓ X ✓ i ✓ +- - - - -- ✓ ✓ -- - -- - - r-- -- - - - -- -- - -- 0.4L 0.11 PEM IV I- - - - -- � ✓ - - 0.5L 0.05 I PEM IV ✓ ■ X X X 0.6E 0.17 PSS lV ' III 1 - t III I 0.94L I 0.48 1.01 — -- 3.75 PSS +_ PAB I X X - _ — 0.9R -- TOTAL r - • • These wetlands may have diverse vegetation, seasonal or permanent open water, or have evidence of wildlife use such as dens, tracks, scat, or gnawed stumps. Two of the wetlands IUs are likely to provide general Value as fish I habitat (Wetlands IUJ V. I Jr and 0.3R). Wetland 0.94E is likely to provide native plant richness. None of the other wetlands are likely to provide uniqueness or heritage value because they do not contain any listed plant or wildlife spedes, and are not considered bogs or estuary wetlands. The wetlands in the study area are either in WSDOT ROW or extend onto privately owned properties, which limit their educational and recreational uses. Table 3 -3 Wetland Functions and Values PAB - Palustrine Aquatic Bed; PEM - Palustrine Emergent; PFO - Palustrine Forested; PSS - Palustrine Scrub -Shrub ✓ = function likely provided by this wetland X = function considered a primary function City of Tukwila: Wetlands Sensitive Area Study May 2006 3 -9 4.0 Impacts City of Tukwila: Wetlands Sensitive Area Study During the course of the Project, all or portions of five of the nine wetlands in the City of Tukwila will be filled or temporarily disturbed. Of the 0.18 acres of wetland impacts in the corridor (Table 4 -1 and Table 4 -2), approximately 0.15 acres will be permanently filled or graded to construct road improvements and 0.03 acres will be temporarily disturbed. 4.1 Permanent Impacts Permanent direct impacts would result from WSDOT filling 0.15 acres of wetland to construct new facilities, diverting or re- directing surface runoff that would be necessary to support wetland hydrology, or filling such a high percentage of the area of a wetland that the remaining area would not function at pre- construction levels (Table 4 -1). 4.2 Temporary Impacts Temporary impacts produce short -term loss of wetland functions during construction and for up to 5 years following construction. They do not, however, result in a permanent loss of wetlands after the Project is completed because disturbed vegetation or wetland hydrology will eventually be re- established. Approximately 0.03 acres of wetlands would be temporarily disturbed during construction activities, including vegetation clearing and the placement of fill material (Table 4 -1). The extent of short-term degradation would vary depending on the intensity of the temporary impact. Wetlands where the vegetation is cleared or trimmed would still retain some water quality and quantity function, although at a diminished level. Filled wetlands would provide no beneficial functions until they were restored. Wetlands temporarily impacted during construction would be restored to their pre- existing conditions following the completion of work and it is anticipated that they would return to a functioning state within 5 years. 4.3 Functions and Values Overall, the wetlands within the project study area are lower value wetlands related to habitat functions because of their proximity to and association with 1 -405. Their primary function is to improve water quality and abate the effects on downstream waters from stormwater flows. Therefore, the temporary and permanent impacts to wetlands in the project area will primarily result in a loss of the stormwater management functions provided by these wetlands. Because of the implementation of stormwater BMPs as part of the Project, stormwater quality will be significantly improved for the corridor as a whole, but wetland loss will reduce the flood water desynchronization, sediment removal, nutrient and toxicant removal, and erosion control functions provided by the impacted wetlands. The Project will also result in a reduction of habitat functions provided by wetland areas, and those habitat functions will not be mitigated through stormwater treatment and detention or other water quality BMPs. Therefore, compensatory wetland mitigation will be implemented primarily for impacts to wetland habitat. May 2006 4 -1 • Wetland i Identifier . . . Area (acres) Permanently Filled or ' Otherwise.. Disturbed; Area (acres) Temporarily : Filled or Otherwise Disturbed Area (acres) Ecology Rating) . Local Jurisdiction and Rating 0.15R 0.52 IV Tukwila-3 III Tukwila-2 0.1R 0.05 - - IV Tukwila-3 0.25M 0.07 - - IV Tukwila-3 0.3R 1.29 - 1- - III Tukwila-2 0.4L 0.11 0.08 0.01 IV Tukwila-3 0.5L 0.05 0.05 IV Tukwila-3 0.6L 0.17 0.01 0.01 IV Tukwila-3 0.94L 0.48 - - III Tukwila-2 0.9R 1.01 0.01 I 0.01 . III Tukwila-2 TOTAL 3.75 0.15 0.03 .. • Wetland. Namella . Permanently Filled or.. Wetland Size' Otherwise in Right of I Disturbed Way 1 Area (sf). Temporarily. Filled or ' Otherwise Disturbed Area (sf) 1 i Ecology Rating) Local . 'Jurisdiction and Rating 0.4L 4,670 3,348 63 IV Tukwila-3 0.5L ' 1,805 1,805 0 IV Tukwila-3 0.6L 7,379 32 276 IV Tukwila-3 0.9R 43,697 187 293 III Tukwila-2 TOTAL 57,551 5,372 632 Table 4-1 Filled or Disturbed Wetlands, City of Tukwila Table 4-2 Summary of City of Tukwila Impacted Wetland Area' 1 Table includes information for impacted wetlands only. An additional five wetlands were delineated within the City of Tukwila but will not be affected by the Project. City of Tukwila: Wetlands Sensitive Area Study May 2006 4-2 5.0 Recommendations City of Tukwila: Wetlands Sensitive Area Study • Throughout the design process, WSDOT has identified several opportunities to avoid or minimize impacts to wetlands and their buffers. The most common avoidance and minimization measures included moving stormwater facilities and requiring retaining walls to reduce the extent of fill necessary to construct the road improvements. The overall Project footprint has been reduced to the greatest extent in areas near wetlands to reduce or eliminate adverse impacts. 5.1 Avoidance and Minimization Measures The following avoidance and minimization measures have been incorporated into the Project design to allow WSDOT to meet the transportation improvement challenge without directly affecting important natural resources: • All wetlands are to be avoided where practicable. • Associated facilities, such as stormwater treatment systems and access roads, are to be located outside of the identified sensitive areas where practicable. • The Project footprint is to be minimized. • Operational analysis will allow Project designers to use existing shoulders or access lanes, thereby reducing the need to extend the road prism. Specific avoidance and minimization measures are identified in Table 5 -1. Table 5 -1 Avoidance and Minimization Measures Wetland Identifier Area (acres) Permanently ;Temporarily Filled I or Otherwise Disturbed Area (acres) Filled or Otherwise Disturbed Area (acres) Avoidance and Minimization 0.15R 0.52 0.1R _ -_ -_— _ 0.05 _- -- -- 0.25M 0.07 0.3R 0.4L I 0.11 0.5L ! 0.05 0.6L 0.94L 0.9R TOTAL 3.75 Avoided Avoided Avoided Avoided 0.08 0.01 Unavoidable due to roadway design standards. Retaining wall not viable due to safety concerns. 0.05 _ Unavoidable due to roadway design standards. _ _ _ Retaining wall not viable due to safe__ concerns. 0.01 i 0.01 Unavoidable due to roadway design standards. Avoided Stormwater outfall designed to minimize impacts to wetland. May 2006 5 -1 • • 5.2 Mitigation Sequence In accordance with CEQ regulations, mitigation sequencing includes: 1. Avoidance measures that eliminate the onset of impacts. 2. Minimization measures proposed to decrease the magnitude or severity of the impact. 3. Rectification measures that are part of the Project and repair or restore resources. 4. Reduction or elimination measures that soften the impacts. 5. Compensation measures designed to offset unavoidable adverse impacts. 6. Monitoring measures that become part of the Project to ensure that resources are not further degraded by the Project. City of Tukwila: Wetlands Sensitive Area Study May 2006 5 - City of Tukwila: Wetlands Sensitive Area Study • • 6.0 Preliminary Compensatory Mitigation WSDOT, in partnership with the City of Renton is developing a mitigation bank called the Springbrook Creek Wetland and Habitat Mitigation Bank (Springbrook Bank). Mitigation banking is one early- action approach identified in the 1 -405 Corridor Final Environmental Impact Statement (FEIS) and the Project is part of WSDOT's watershed approach to wetland mitigation. By consolidating the mitigation into one large site, WSDOT has the opportunity to work with a panel of resource agency representatives to create mitigation that specifically contributes aquatic ecosystem functions that are lacking in the local watershed while providing safe, high - quality wildlife habitat away from the dangers of a roadside location. This approach will be used as the wetland mitigation for unavoidable impacts to wetlands within the Springbrook Bank service area, which includes the 1 -405 corridor area from the 1-405 and 1 -5 intersection north to the northern city limits of Renton. Therefore, the 0.15 acres of permanent impacts to wetlands for the Project will be compensated with credits from the Springbrook Bank. The Springbrook Wetland Mitigation Banking Instrument (MBI) was developed to determine the mitigation ratios to be used at the Springbrook Bank. The Wetland Mitigation Memorandum defines the wetland mitigation for the Project. _ t _ ,ZZS ot. ✓! a✓ a2 ` May 2006 6 -1 7.0 References • City of Tukwila. 2004. City of Tukwila Wetland/Watercourse Buffer Map. Dated July 15, 2004. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. Publ. # FWS /OBS- 79/31. U.S. Fish and Wildlife Service. Ecology (Washington State Department of Ecology). 1997. Washington State Wetlands Identification and Delineation Manual. Publication No. 96 -94. Olympia, WA. Washington State Department of Ecology. Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual. Technical Report Y -87 -1. Vicksburg, MS. U.S. Army Engineer Waterways Experiment Station. Franklin, J.F. and C.T. Dyrness. 1988. Natural vegetation of Oregon and Washington. Oregon State University Press, Corvallis, OR. Hruby, T. 2004. Washington State Wetland Rating System for Western Washington Revised. Washington State Department of Ecology Publication No. 04 -06 -025. Olympia, WA: King County. 1990. King County Sensitive Areas Map Folio. NRCS (United States Department of Agriculture, Natural Resources Conservation Service). 1995. Hydric Soils of the State of Washington. Washington, DC. Null, W.S., G. Skinner, and W. Leonard. 2000. Wetland Functions Characterization Tool for Linear Projects. Olympia, WA: Washington State Department of Transportation Environmental Affairs Office. www. wsdot.wa.gov /environment/bioloov /docs /bpitool.pdf Snyder, D.E., P.S. Gale, and R.F. Pringle. 1973. Soil Survey of King County Area, Washington. Washington, DC. U.S. Soil Conservation Service. USFWS (United States Department of Interior, U.S. Fish and Wildlife Service). 1987. National Wetland Inventory, Des Moines Quadrangle. USFWS (United States Department of Interior, U.S. Fish and Wildlife Service). 1988. National Wetland Inventory, Mercer Island Quadrangle. WSDOT (Washington State Department of Transportation). 2004. Environmental Procedures Manual M31 -11 Volume 1 and 2. Olympia, WA. WSDOT Environmental Affairs, Engineering Publications. City of Tukwila: Wetlands Sensitive Area Study May 2006 7 -1 M Common and Taxonomic Names of Plants Observed in the Study Area City of Tukwila: Wetlands Sensitive Area Study Appendix A: May 2006 A • Table A-1 Plant Species List for the Project Wetlands Study SHRUBS Common Nal*, Scientific Name TREES big-leaf maple Acer macrophyllum , FACU bitter cherry 1 Prunus emarginata FACU* I black cottonwood Populus balsamifera FAC cascara Rhamnus purshiana FAC- T Douglas-fir Pseudotsuga menziesii FACU* mountain ash Sorbus aucuparia NL one-fruited hawthorn Crataegus monogyna ;— Oregon ash Fraxinus latifolla LFACW Pacific crabapple Ma lus fusca i FACW Pacific madrona Arbutus menzeisii I NL r 1 paper birch i , Betula papyrifera FAC* i--- , quaking aspen ' Populus tremula FAC red alder alder Alnus rubra FAC 1 {- 1 Sitka spruce ' Picea sitchensis FAC 1-- western hemlock 1 Tsuga heterophylla I FACU- western red cedar Thuja plicata FAC beaked hazelnut Corylus comuta FACU black hawthorn Crataegus douglassi FAC black raspberry black twin-berry Rubus leucodermis NL Lonicera involucrate FAC+* clustered rose Rosa pisocarpa ±FAC currant Ribes spp. FAC-FAC+ devil's club Oplopanax horridus FAC+ Douglas' spiraea Spiraea douglasii FACW English holly hex aquifolium NL English ivy Hedera helix NL evergreen blackberry Rubus laciniatus FACU Himalayan blackberry Rubus discolor FACU honeysuckle Lonicera spp. FACU-FAC Hooker's willow Salix hookeriana FACW- WIS huckleberry Vaccinium spp. NL-OBL Indian plum ' Oemleria cerasiformis FACU City of Tukwila: Wetlands Sensitive Area Study May 2006 A-1 City of Tukwila: Wetlands Sensitive Area Study Table A-1 Plant Species List for the Project Wetlands Study Common Name long-leaved Oregon grape Nootka rose ocean spray Pacific blackberry Pacific ninebark Pacific willow red elderberry red huckleberry red-osier dogwood salal salmonberry scotchbroom Scouler's willow Sitka willow snowberry tall Oregon grape thimbleberry American brooklime American vetch American waterlily aster bedstraw birdsfoot-trefoil bitter nightshade bracken fern bull thistle buttercup Canadian goldenrod c.:oltsfoot Scientific Name Berberis nervosa Rosa nutkana Holodiscus discolor Rubus ursinus Physocarpus capitatus Salix lasiandra Sambucus racemosa Vaccinium parvifolium Corpus stolonifera Gaultheria shallon Rubus spectabilis f Cytisus scoparius Salix scouleriana Berberis aquifolium Rubus parviflorus Aster spp. Galium spp. Lotus comiculatus Solanum dulcamara Petasites spp. Veronica americana Vicia americana Pteridium aquilinum !Cirsium vulgare Ranunculus spp.. Solidago canadensis Canadian thistle Cirsium arvense 1 catchweed bedstraw Galium aparine T - ISalix sitchensis 1Symphoricarpos albus vine maple Acer circinatum western snowberry Symphoricarpos occidentalis t_ 1 white willow Salix alba . HERBS Nymphaea odorata WISI NL FAC NL FACU FFACW- FACW+ FACU NL FACW FACU* FAC+ NL FAC FACW FACU NL _ FAC- FAC- NI FACW OBL Ni OBL NL-OBL UPL-FACW+ FAC FAC+ FACU FACU NL-OBL FACU FACU+ FACU FAC-FACW May 2006 A-2 Common Name I Scientific Name WIS common cat -tail Typha latifolia , Senecio jacobaea r Plantago major Capsella bursa- pastoris i OBL common groundsel — common plantain FACU FACU+ , FACU common shepards' purse common speedwell Veronica officinalis i Hypericum perforatum Tanacetum vulgare Vicia sativa Achillea millefolium , : ; NL NL common St. John's wort common tansy NI NL FACU common vetch common yarrow Cooley's hedge - nettle I Stachys cooleyae NL FAC+ FACW cow parsnip Heracleum lanatum creeping buttercup I Ranunculus repens cress , Rorippa spp. Rumex crispus I , i ; I ; ' . i l FAC + -OBL FAC+ curly dock dandelion Taraxacum officinale FACU deer fem dock duckweed Blechnum spirant Rumex spp. FAC+ FAC -OBL OBL Lemna minor English ivy Hedera helix Plantago lanceolata Maianthemum dilatatum NL English plantain FAC false lily -of- the - valley FAC field horsetail fireweed ; Equisetum arvense ; Epilobium angustifolium FAC FACU+ foamfiower Tiarella trifoliata , FAC - forget- me-not . Myosotis spp. FAC -FACW -- — foxglove Digitalis purpurea j FACU' giant horsetail I Equisetum telmateia : j ' ; FACW — — — NL hairy cats -ear Hypochaeris radicata horsetail — . I Equisetum spp. FAC -OBL Japanese knotweed lady fern Polygonum cuspidatum Athyrium frlix- femina FACU' F AC FACW -' large -leaf avens Geum macrophyllum licorice fern l Polypodium glycyrrhiza Mentha spp. , i NL FAC -OBL mint mustard Brassica campestris NL City of Tukwila: Wetlands Sensitive Area Study Table A -1 Plant Species List for the Project Wetlands Study May 2006 A -3 Common Name • Table A -1 Plant Species List for the Project Wetlands Study Scientific Name oxeye -daisy Chrysanthemum leucanthemum i NL Pacific bedstraw Galium cymosum FACW Pacific bleedingheart Dicentra formosa ' FACU* Pacific silverweed Potentilla anserina OBL pearly everlasting Anaphalis margaritacea NL pig -a- back -plant Tolmiea menziesii 1 FAC* pineapple weed Matricaria matricarioides FACU pondweed Potamogeton spp. OBL . purple loosestrife ; Lythrum salicaria FACW+ red clover i Trifolium pratense FACU scouring horsetail j Equisetum hyemale i FACW sheep sorrel p ; Rumex acetosella I FACU+ skunk cabbage � Lysichitum americanum OBL - smartweed : Polygonum spp. i FACU -OBL speedwell Veronica spp. : NL -OBL sphagnum moss Sphagnum spp. , NL spreading bentgrass ; Agrostis stolonifera ! FAC+ stinging nettle Urtica dioica FAC+ strawberry Fragaria virginiana : NL sweet coltsfoot ! Petasites frigidus FACW- sword fern Polystichum munitum FACU thistle Cirsium spp. FACU -OBL vetch Vicia spp. ; NI -NL f-- L water cress 1 Rorippa nastursium - aquatica NL water parsley ; Oenanthe sarmentosaa OBL 'OBL water starwort ! Callitriche spp. Watson's willow -weed l Epilobium watsonii j FACW - - western St. John's wort I Hypericum formosum i FAC- white clover : Trifolium repens ; FAC* , GRASSES, RUSHES, AND SEDGES bluegrass : Poa spp. • NL -FACW bulrush ; Scirpus spp. OBL i colonial bentgrass ; Agrostis tenuis FAC common spike -rush ! Eleocharis palustris OBL common timothy i Phleum pratense FAC- City of Tukwila: Wetlands Sensitive Area Study WIS May 2006 A -4 Common Name Scientific Name WISI common velvetgrass ! Holcus lanatus FAC creeping velvetgrass Holcus mollis FACU* Dewey's sedge Carex deweyana FACU* fowl bluegrass hardstem bulrush Kentucky bluegrass mannagrass meadow foxtail orchard -grass perennial ryegrass quackgrass spreading bentgrass Poa palustris 1 FAC i . ' Scirpus acutus ;OBL } Poa pratensis 1 FAC T Glyceria spp. FACW + -OBL Alopecurus pratensis FACW f Dactylis glomerata FACU Lolium perenne ' FACU Agropyron repens FAC- red fescue I Festuca rubra j FAC+ reed canarygrass Phalaris arundinacea 1 FACW rush Juncus spp. , FAC -OBL sedge Carex spp. FAC -OBL - i _ slough sedge Carex obnupta OBL small- fruited bulrush . Scirpus microcarpus ' OBL soft rush ! Juncus effusus spike -rush FACW Eleocharis spp. I FACW -OBL Agrostis stolonifera 1 FAC+ tall fescue ' Festuca arundinacea FAC - tall mannagrass Glyceria elata i FACW+ wheatgrass ' Agropyron spp. ; FACU -FAC ' Wetland Indicator Status OBL (Obligate): species almost always occur in wetlands under natural conditions (estimated probability is greater than 99 percent). FACW (Facultative wetland): species usually occur in wetlands (estimated probability is 67 to 99 percent), but are occasionally found in non - wetlands. FAC (Facultative): species equally likely to occur in wetlands or non - wetlands (estimated probability is 34 to 66 percent). FACU (Facultative upland): species usually occur in non - wetlands (estimated probability is 67 to 99 percent), but are occasionally found in wetlands. UPL (Upland): species almost always occurring in non - wetlands under normal conditions (estimated probability is greater than 99 percent). M_ (Not listed): species not listed and presumed to be upland species. + = indicates a species more frequently found in wetlands. - = indicates a species less frequently found in wetlands. = identifies a tentative assignment based on either limited information or conflicting reviews. City of Tukwila: Wetlands Sensitive Area Study Table A -1 Plant Species List for the Project Wetlands Study May 2006 A -5 City of Tukwila: Wetlands Sensitive Area Study Appendix B: Wetland Data Sheets Wetland Delineation Forms Functional Assessment Forms Wetland Rating Forms May 2006 8 ATTACHMENT 7 Design Geotechnical Memorandum RECEIVED MAY 2 3 2006 COWL. i Y DEVELOPMENT Congestion Relief & Bus Rapid Transit Projects • • DESIGN GEOTECHNICAL MEMO By A.F. Stirbys, I -405 Lead Geotech Subj ect I -405, I -5 to SR- 169 – Renton Nickel Improvement Project Geotechnical Issues —Green River Area May 23, 2006 AFS 600 — 108th Avenue NE, Suite 405 Bellevue, WA 98004 Main 425- 456 -8500 Fax 425- 456 -8600 It is understood that the I -405 lane expansion under the Christensen Road bridge area will involve removal of some of the slope pavement, soil excavation, and construction of a short (4- to 5 -foot high) retaining wall. The proposed "limit of construction" for this construction activity will be a minimum of approximately 80 feet from the banks of the Green River. To this end, the proposed construction activity within the proposed limits will not destabilize the banks of the Green River. T: \Environmental (Project Level) \South_Renton_Nickel \l2- Permitting \Tukwila shoreline permit (Final)Wttachment 7 (Geo -tech Memo) \Design Geo -tech statement.doc • ATTACHMENT 8 Tree Mitigation Memorandum RECEIVED MAY 2 3 2006 COMMUNI1 DEVELOPMENT orridor Program Congestion Relief & Bus Rapid Transit Projects • • TREE MITIGATION MEMO 600 – 108th Avenue NE, Suite 405 Bellevue, WA 98004 Main 425- 456 -8500 Fax 425- 456 -8600 May 23, 2006 By Terry Drochak, Permit Coordinator Subject I -405, I -5 to SR- 169 – Renton Nickel Improvement Project —City of Tukwila, Sensitive Areas Special Studies Review This memorandum, in conjunction with the Wetland Sensitive Area Study and Wetland Mitigation Memorandum, shall serve to demonstrate compliance with the City of Tukwila's Sensitive Areas Ordinance and Tree Regulations (TMC 18.54). The impacts to trees within the City of Tukwila as part of the I -405, I -5 to SR -169– Renton Nickel Improvement Project (Project) are minimal and will be more than offset by planting trees at the wetland mitigation site for the Project. The areas being impacted by minor roadway widening are predominantly vegetated by grasses and some shrubs. No trees within the shoreline zone will be impacted by the Project. Few or no trees are expected to be impacted within sensitive areas or sensitive area btifers by the Project. Four wetlands will be permanently impacted by the Project, as depicted in the Wetland Sensitive Area Study. A copy of the Wetland Sensitive Area Study that is included in the City of Tukwila application package describes the unavoidable permanent impacts to wetlands within Tukwila. The Wetland Mitigation Memorandum outlines the wetland mitigation proposed to compensate for those wetland impacts. As discussed with Nora Geirloff and Carol Lumb during a meeting about this Project on February 27, 2006, the Project proposes to plant native trees at the wetland mitigation site, which will ensure compliance with the City of Tukwila Tree Ordinance (TMC 18.54). Tree Replanting Summary The objectives of Springbrook Wetland and Habitat Mitigation Bank (Springbrook Bank) are to re- establish 17.79 acres of wetland, rehabilitate 52.22 acres of wetland, enhance 32.59 acres of wetland, and enhance 7.80 acres of upland and 6.55 acres of riparian upland and 9.7 acres of buffer enhancement adjacent to Springbrook Creek for a total of 126.65 acres. The proposed restoration and enhancement activities will re- connect floodplain wetlands with Springbrook Creek, re- establish historical wetlands, and improve water quality, hydrologic, floodplain, habitat, and riparian functions in a highly urbanized area. Washington State Department of Transportation (WSDOT) anticipates • • using its credits from Springbrook Bank for transportation projects within the service area. The functional improvements at the Springbrook Bank site are outlined in sections 2.6 and 2.7 of the Mitigation Banking Instrument (MBI). The Springbrook Bank objectives are described in more detail in section 3 of the MBI. As part of the wetland re- establishment, and rehabilitation and enhancement activities at the Springbrook Bank site, significant numbers of native tree species are proposed to be planted. The amount of mitigation credits debited from the Springbrook Bank for wetland impacts within Tukwila (see Wetland Sensitive Area Study) will more than offset any trees removed in Tukwila as part of the Project, particularly since few or no trees are expected to be removed by the Project. The following is a brief summary of tree planting amounts that will occur at the Springbrook Bank site. Though a more detailed description of the Springbrook Bank restoration concepts can be found in section 2.6 of the MBI, a summary is provided below. Also, a complete list of shrub and trees species to be planted at the Springbrook Bank site is located in Table 2 -1 of the MBI. Mitigation Units A and B A total of 51.10 acres of wetland rehabilitation will occur on Units A and B. A total of 2,500 native trees and shrubs per acre will be installed within planting areas. Woody species appropriate for the various hydroperiods will be planted as containerized and/or bare -root stock including: Oregon ash, red -osier dogwood, Sitka and Pacific willows, and peafruit wild rose. Containerized Sitka spruce, western red cedar, Oregon ash, black cottonwood, and Pacific ninebark will be planted on the constructed hummocks. A total of 0.17 acres of wetland re- establishment will occur on Units A and B. Native trees and shrubs will be installed at a density of 2,500 stems per acre including: Oregon ash, red -osier dogwood, Sitka and Pacific willows, and peafruit wild rose. A total of 2.13 acres of riparian upland enhancement will occur on Units A and B. Scouler's willow, big -leaf maple, red alder, Sitka spruce, Douglas-fir, and snowberry will be planted at a density of 1,500 stems per acre. A total of 6.09 acres of protection setback area will be created on Units A and B. Protection setback plantings in uplands will include Douglas-fir, big -leaf maple, serviceberry, oceanspray, beaked hazel, and snowberry at 1,500 stems per acre. Protection setback plantings in wetlands will include Oregon ash, red -osier dogwood, Sitka and Pacific willows, and peafruit wild rose at 2,500 stems per acre. Mitigation Unit C A total of 9.27 acres of wetland re- establishment will occur on Unit C. This area will be planted with native trees and shrubs at 2,500 stems per acre. The wetter bottom area (below the 16 -foot contour) will be planted with Oregon ash, red -osier dogwood, Sitka and Pacific willows, and peafruit wild rose. Fringe wetland areas (between the 16 -foot and 20 -foot contours) will be planted with Pacific ninebark, black twinberry, Oregon ash, black cottonwood, Sitka willow, and Nootka rose. T:1Environmental (Project Level)1South_ Renton _Nickel112 - Permitting \Tukwila shoreline permit (Final)1Attachment 8 (Tree Mitigation Memo)1Tree Mitigation Memorandum.doc 2 • • A total of 1.06 acres of wetland rehabilitation will occur on Unit C. Conifer under - plantings will include Sitka spruce, western hemlock, and western red cedar at a density of 100 stems per acre. A total of 23.23 acres of forested wetland enhancement will occur on Unit C. Sitka spruce, western hemlock, and western red cedar will be planted in existing forested wetland areas at a density of 100 trees per acre. A total of 4.69 acres of wetland enhancement will occur on Unit C. Nootka rose, red - osier dogwood, Sitka spruce, black cottonwood, red alder, Scouler's willow, and western red cedar will be installed at 2,500 stems per acre. A total of 7.80 acres of upland enhancement will occur on Unit C. Douglas -fir, big -leaf maple, serviceberry, oceanspray, beaked hazel, and snowberry will be planted at 1,500 stems per acre in upland areas. Mitigation Unit D A total of 7.80 acres of forested wetland enhancement will occur on Unit D. Sitka spruce, western hemlock, and western red cedar will be used for under - planting in the forested wetlands, at a density of 100 trees per acre. The area disturbed in constructing the storm sewer pipe will be planted with 2,500 stems per acre of Oregon ash, red -osier dogwood, Sitka and Pacific willows, and peafruit wild rose. Mitigation Unit E A total of 8.35 acres of wetland re- establishment will occur on Unit E. The wetter bottom area (below the 10 -foot contour) will be planted with Oregon ash, red -osier dogwood, Sitka and Pacific willows, and peafruit wild rose. Fringe wetland areas (between the 10- and 12 -foot contours) will be planted with Pacific ninebark, black twinberry, Oregon ash, black cottonwood, Sitka willow, and Nootka rose. Areas above the 12 -foot contour will be planted with red -osier dogwood, Sitka spruce, black cottonwood, Nootka rose, Scouler's willow, and western red cedar. Woody plants will be installed as live stakes, bare -root, and/or containerized stock at a density of 2,500 woody stems per acre. A total of 4.42 acres of riparian upland enhancement will occur on Unit E. Scouler's willow, big -leaf maple, red alder, Sitka spruce, Douglas -fir, and snowberry will be installed in areas lacking woody vegetation in the riparian enhancement area at 1,500 plants per acre. Under - plantings in existing deciduous forest will include Sitka spruce, western hemlock, and western red cedar. A total of 100 plants per acre will be installed in those areas. A total of 1.98 acres of protection setback area will be created on Unit E. Native woody plantings will be installed at a density of 1,500 stems per acre. Species to be planted include Douglas -fir, big -leaf maple, serviceberry, oceanspray, beaked hazel, and snowberry. T:\Environmental (Project Level) \South_Renton _Nickel \12 - Permitting \Tukwila shoreline permit (Final)\Attachment 8 (Tree Mitigation Memo) \Tree Mitigation Memorandum.doc 3 • • Tree Mitigation Conclusion No trees within the Green River shoreline zone will be impacted by the Project. Few or no trees within sensitive areas or sensitive area buffers are expected to be impacted by the Project. Wetlands that will be impacted by the Project are predominantly vegetated by grasses and some shrubs. The Project proposes mitigation at the Springbrook Bank, which includes the planting of thousands of coniferous and deciduous native trees in its design. Therefore, any impacts to trees within the City of Tukwila as part of the Project will be adequately mitigated through the tree planting at the Springbrook Bank. The survivability of the tree plantings will be guaranteed through best management practices (BMPs) and the success criteria established for the Springbrook Bank in the MBI. Reference Washington State Department of Transportation (WSDOT). 2006. Springbrook Creek Draft Final Wetland and Habitat Mitigation Bank: Mitigation Bank Instrument. March 1, 2006. T:\Environmental (Project Level)\South_ Renton _Nickel112 - Permitting \Tukwila shoreline permit (Final)'Attachment 8 (Tree Mitigation Memo)1Tree Mitigation Memorandum.doc 4 • • ATTACHMENT 9 Green River Shoreline Zone Site Plans RECEIVED MAY 2 3 2006 COMMUNITY DEVELOPBBEbvT • • ATTACHMENT 10 CAO Application Checklist RECEIVED MAY 2 3 2006 COMMUNITY DEVELOPMENT Check items submitted with application Information Required. May be waived in unusual arses, upon approval of both Public Works and Planning APPLICATION MATERIALS: X 1. Application Checklist one (1) copy, indicating items submitted with application. N/A 2. Permit Fee (LDR = $200, Other zones = $300). X 3. Written description of the project, the deviation being requested and response to the applicable decision criteria. ZONING CODE PARKING DEVIATION N/A 4. A complete description of the proposed construction relative to parking areas, and all supporting agreements. N/A 5. Dimensional site plan(s) to demonstrate parking area consistent with Zoning Code requirements. N/A 6. Parking studies as needed to demonstrate adequate parking is provided. LANDSCAPE DEVIATION N/A 7. Landscape plan - two (2) copies showing size and species of existing and proposed plant materials, required perimeter landscape types, parking areas, buildings, walkways, transit facilities, property lines, dimensions and area of planting beds and any calculations necessary to demonstrate compliance with review criteria. TREE REGULATION DEVIATION X 8. Tree survey showing size and species of existing trees, with trees to be removed and trees to be retained noted (unless request is for use of canopy cover method) X 9. Tree replacement calculations per TMC 18.54.130.3 B or canopy cover calculations per TMC 18.54.140 B. X 10. Description of the nature of the undue hardship caused by strict compliance with the Tree Regulations, proposed mitigation measures and justification for the deviation from Tree Regulations. COMPLETE APPLICATION CHECKLIST The materials listed below must be submitted with your application unless specifically waived in writing by the Public Works Department and the Department of Community Development. Please contact the Department if you feel that certain items are not applicable to your project and should be waived, or should be submitted in a later timely manner for use at the Public Hearing (e.g., revised colored renderings). Application review will not begin until it is determined to be complete. ADDITIONAL MATERIALS MAY BE REQUIRED. The initial application materials allow starting project review and vesting the applicant's rights. However, they in no way limit the City's ability to require additional information as needed to establish consistency with development standards. Department staff are available to answer questions about application materials at 206 - 431 -3670. COMPLETE APPLICATION CHECKLIST TABLE Check items submitted with application Information RWred. May be waived in unusual cases, u.Wapproval of both Public Works and Planning SENSITIVE AREA ORDINANCE ADMINISTRATIVELY APPROVED USES OR DEVIATIONS X 11. Site Plan - two (2) copies showing all buildings, parking areas, walkways, property lines, planting areas, sensitive areas, their buffers and setbacks. X 12. Sensitive area studies and enhancement plans to justify a requested buffer or setback reduction and demonstrate that the reduction will not result in a direct or indirect or long - term adverse impact to the sensitive area. A written response must be provided to the Review Criteria set forth in TMC 18.45.080 and/or TMC 18.45.100, attached at the end of this application packet. X 13. For Administratively Approved Uses, address relevant criteria for proposed use per TMC 18.45.070 B., 18.45.090 B. or 18.45.110 B. or C. SIGN CODE APPROVAL/DEVIATION N/A 13. Complete "Permanent Sign Permit Application" with all supporting materials and fees ($100). N/A 14. The following information should be provided on the plans: • North arrow, title, scale and date; • Vicinity map showing location and names of adjacent roads; • Property lines; • Locations of all buildings on site; • Dimensioned elevations of building drawn to scale (for wall signs); • Elevations, dimensions and materials of proposed sign(s) including advertising copy; • Color elevation of proposed sign. Written justification for the requested sign code deviation also must be provided. CARGO CONTAINER APPROVAL N/A 15. Site plan showing the location of the container(s) in relationship to parking areas, property lines, buildings, streets, trails, landscape areas and setbacks. N/A 16. Description of the proposed screening. N/A 17. Dimensions of proposed cargo container. RESIDENTIAL ROOF PITCH N/A 18. Roof lower than 5:12 pitch in residential zones - see new TMC 18.50.055 (attached) RECEIVED MAY 2 3 2006 COMMUNITY DEVELOPMENT ATTACHMENT 12 Sensitive Areas Memorandum . rt • • orridor Program Congestion Relief & Bus Rapid Transit Projects SENSITIVE AREAS REVIEW MEMO 600 — 108th Avenue NE, Suite 405 Bellevue, WA 98004 Main 425- 456 -8500 Fax 425- 456 -8600 May 23, 2006 By Joseph Pursley, Permit Coordinator Subject I -405, I -5 to SR- 169 – Renton Nickel Improvement Project —City of Tukwila, Sensitive Areas Special Studies Review Introduction I -405, I -5 to SR -169– Renton Nickel Improvement Project (Project) improvements include a combination of pavement widening and lane re- striping to create additional north and southbound general purpose and auxiliary lanes, bridge replacements, improvements to the SR -167/I -405 interchange, and reconfiguration of the stormwater drainage system. Impacts to aquatic resources (wetlands and streams) will occur from highway widening and reconfiguration of the stormwater drainage system. Impacts will include permanent and temporary impacts to wetlands, and permanent and temporary impacts to wetland and stream buffers. See Attachment 3 – JARPA Drawings and Attachment 6 – Wetland Sensitive Area Study included with this submittal. The proposed Project is permitted by Tukwila Municipal Code (TMC) 18.45.070; however, a proposed new stormwater outfall into Wetland 0.9L (Nelson side channel) is subject to administrative review (TMC 18.45.070(B)). Highway widening involves cutting into banks and filling depressions within the highway prism. In some locations, fill will be placed in wetlands to widen the highway and to accommodate related highway infrastructure. The proposed stormwater drainage system for existing and new impervious surfaces includes stormwater collection and treatment facilities. The stormwater collection facilities include drainage ditches and pipes, ecology embankments, detention facilities, and flow control structures. Impacts to aquatic resources will be related to grading and filling activities. One outfall from a new stormwater facility will be placed in Wetland 0.9L (Nelson side channel). Since Wetland 0.9L is subsurficially connected to the hydrology of the Green River, the proposed outfall discharge will not adversely affect the water level fluctuations in Wetland 0.9L or the Green River. Temporary Impacts Up to three wetlands may be temporarily impacted during construction. Temporary impacts include the potential cutting or crushing of vegetation within these areas during construction. Temporary impact areas will either remain at or be restored to preconstruction elevations and vegetation will be restored to preconstruction conditions, as necessary. Temporary impacts to the three wetlands will total 0.03 acres. Temporary impacts will also occur to three wetland • buffers totaling 0.16 acres. Impacts will occur from construction of stormwater facilities and highway widening. Temporary impacts will not occur to streams within the City of Tukwila. Temporary impacts will occur to two stream buffers totaling 1.0 acres. Impacts will occur from construction of stormwater facilities, utility protection, and highway widening. Permanent Impacts Permanent impacts will occur to four wetlands totaling approximately 0.15 acres. One wetland will be completely filled and three will be partially filled. Impacts will occur as a result of a stormwater facility and highway widening. Avoidance and Minimization Washington State Department of Transportation (WSDOT) will use Best Management Practices (BMPs), Standard WSDOT Procedures and Specifications, and design elements to avoid or minimize potential effects to the environment. The following general avoidance and minimization measures will be used: • WSDOT will utilize a commitment tracking system to identify all commitments made during Endangered Species Act (ESA) consultation, National Environmental Policy Act (NEPA) /State Environmental Policy Act (SEPA), design, and permitting. All Project commitments will be clearly communicated in the Request for Proposals (RFP) to the Design- Builder, who will in turn communicate commitments to Project office staff and supporting design offices. Commitments will be tracked throughout the various stages of the Project delivery. • The Design- Builder will be required to prepare and implement an Environmental Compliance Plan (ECP) and assign an Environmental Compliance Manager (ECM). • Prior to the start of construction, all sensitive areas and clearing limits will be marked with high visibility construction fencing, and erosion control devices will be placed to prevent runoff of sediment into wetlands and streams. The Design- Builder will also show environmental commitments on plan sheets when applicable. • Impacts to wetlands and streams will be minimized during construction through the use of temporary erosion and sediment control BMPs. The Design- Builder will be required to prepare and implement a Temporary Erosion and Sedimentation Control (TESC) Plan and Spill Prevention Control and Countermeasures (SPCC) Plan in accordance with the Highway Runoff Manual, environmental commitments, and contract requirements. • All washwater and concrete -laden water associated with construction will be treated to meet state of Washington surface water quality standards (Chapter 173 -201A Washington Administrative Code [WAC]) prior to discharge into surface waterbodies. WSDOT and the Design- Builder will provide assurance that all long -term compliance expectations are passed along to the appropriate responsible parties. T:\Environmental (Project Level)1 South_ Renton _Nickel112 - Permitting \Tukwila shoreline permit (Final)\Attachment 12 (Sensitive Areas Memo)1Sensitive Areas memo.doc 2 Mitigation The Springbrook Creek Wetland and Habitat Mitigation Bank (Springbrook Bank) will provide adequate mitigation credits necessary to compensate for unavoidable permanent impacts up to 0.15 acres of wetlands and 0.16 acres of wetland buffers resulting from the Project. See Attachment 6 — Wetland Sensitive Area Study and Attachment 13 — Wetland Mitigation Memorandum for a description on how mitigation will work with the Springbrook Bank. Temporary impacts to wetlands, and wetland and stream buffers, will be restored to preconstruction elevations. Hydrology and vegetation will be restored with native plantings where applicable. BMT • • T: \Environmental (Project Level) \South_Renton_Nickel \12 - Permitting \Tukwila shoreline permit (Final)Wttachment 12 (Sensitive Areas Memo)\Sensitive Areas memo.doc 3 ATTACHMENT 13 Wetland Mitigation Memorandum RECEIVED MAY 2 3 2006 COMMUNI fY DEVELOPMENT 1I TERSTATE \ 405 Corridor Program Congestion Relief & Bus Rapid Transit Projects WETLAND MITIGATION MEMO By Terry Drochak Subject I - 405, I - to SR 169 Project Wetland Mitigation Memorandum 4- 10 J tt np ,_A S" This memo contains info ation that corresponds to the su mitted JARPA drawings, Wetland Biology Report, and the Mitigation Bank Instrument (MBI). These documents should be used as references for the review of this memo. Wetland impacts within The City of Tukwila and The City of Renton are discussed in this memo. Existing Conditions of Impacted Wetlands The seven wetlands that may receive temporary or permanent impacts associated with fill from the 1 -405, 1 -5 to SR 169 Project are listed below by wetland number. Existing conditions (i.e., size, location, vegetation, soils, and hydrology) of each wetland are based on field visit observations and wetland delineation forms completed during field visits related to the Wetland Biology Report. Existing conditions and functions of impacted wetlands can also found in Table 1. 1 600 — 108th Avenue NE, Suite 4C Bellevue, WA 980C Main 425 - 456 -85C Fax 425 - 456 -86C May 23, 2006 Table 1 Existing Functions of Impacted Wetlands as 0.9R i 1.01 1.7R 0.46 2.6L I 0.02 25.0L 5.88 0 Ty o s a 4 U 0.4L 0.11 PEM IV 0.5L 0.05 PEM IV 0.6L 0.17 PSS IV PAB III PSS III O 0 Q 0 U . 0 X ✓ I ✓ X X X X ✓ X X � ✓ X TOTAL 7.70 III PEM IV PSS ' PEM - Palustrine Emergent; PSS - Palustrine Scrub - Shrub; PAB - Palustrine Aquatic Bed ✓= function likely provided by this wetland X = function considered a primary function 2 Wetland 0.4L Size and location: The 0.11 -acre wetland is located southeast of the Southcenter Boulevard /61st Avenue South intersection. Wetland 0.4L is a long, narrow ditch bordered by a steep slope to the north and 1 -405 southbound lanes to the south. Vegetation: Dominated by reed canarygrass, common cattail, and bentgrass. Soils: An A horizon of black (5Y 2.5/2) loamy sand extending to 4 inches deep, over a B horizon of light olive gray (5Y 6/2) sand with yellowish brown (10YR 5/6) mottles. The soil below 8 inches was too compact to sample. Hydrology: Soils were saturated at the surface with free water within 3 inches of the surface in the soil pit. Wetland 0.4L receives runoff from the surrounding slope and roadway, and discharges to an upland ditch. Wetland 0.5L Size and location: The 0.05 -acre wetland is located between Southcenter Boulevard and southbound 1 -405. Wetland 0.5L is a long, narrow ditch bordered by a steep slope to the north and 1 -405 southbound lanes to the south. Vegetation: Dominated by reed canarygrass and soft rush. Soils: Soils in the wetland consist of an A horizon, extending from the surface to 10 inches deep, of a black (10YR 2/1) sandy loam. The B horizon extends from 10 to 16 inches deep and is a dark gray (Gley 10Y 4/1) gravely loamy sand with yellowish brown (10YR 5/8) mottles. • • Hydrology: Soils were saturated at the surface and free water was present within 4 inches of the surface of the soil pit. Wetland 0.5L receives runoff from the surrounding slope and roadway, and discharges to an upland ditch. Wetland 0.6L Size and location: The 0.17 -acre wetland is located southwest of the Christensen Road /Southcenter Boulevard intersection situated between Southcenter Boulevard and southbound 1-405. Wetland 0.6L is a long, narrow ditch bordered by a steep slope to the north and 1-405 southbound lanes to the south. It is associated with an unnamed tributary of Gilliam Creek. Vegetation: Dominated by reed canarygrass, black cottonwood, willow, soft rush, and Himalayan blackberry. Soils: Soils in the wetland consist of an A horizon, extending from the surface to 10 inches deep, comprised of a dark gray (10YR 4/1) loamy sand with dark yellowish brown (10YR 3/6) mottles. The B horizon, extending from 10 to 16 inches deep, is a loamy sand with a dominant brown (10YR 4/3) and subdominant dark greenish gray (Gley 5GY 4/1) soil matrix with dark yellowish brown (10YR 3/6) mottles. Hydrology: Soils were saturated at the surface and free water was present within 4 inches of the surface of the soil pit. Standing water was present in a large portion of the wetland. Wetland 0.6L receives runoff from the surrounding slope and roadway, and discharges to Gilliam Creek via a culvert. Wetland 0.9R Size and location: The 1.01 -acre wetland is located south of the southbound interchange of SR 181 from 1 -405. Wetland 0.9R includes a large area of open water and aquatic bed communities, and is surrounded by a steep slope. Vegetation: Area immediately adjacent to the open water is dominated by Himalayan blackberry with spikerush, black cottonwood, and reed canarygrass occurring near the open water edges. Soils: An Al horizon of (10YR 2/1) sandy loam extends 2 inches deep, over an A2 horizon of (2.5Y 3/2) sandy loam with brown (10YR 4/4) mottles. Below 10 inches, the B horizon consists of sandy loam (2.5Y 4/4) containing cobbles and sand, with brown (10YR 4/2) mottles. Hydrology: Soils were saturated to the surface and free water was present within 8 inches of the surface of the soil pit. The wetland open water area contained standing water several feet deep. The major sources of hydrology to Wetland 0.9R include highway stormwater runoff, groundwater, and precipitation. The wetland has no surface water outlet. Wetland 1.7R Size and location: The 0.46 -acre wetland is adjacent to the 1 -405 northbound lanes, between Oakesdale Avenue SW and Lind Avenue SW. Wetland 1.7R is a very long, narrow ditch that is bordered by 1 -405 to the north and commercial development to the south. Vegetation: Dominated by reed canarygrass and Pacific willow. 3 • • Soils: A surface layer of very dark gray (2.5Y 3/1) silt loam with organic material, over a subsoil layer, occurring below 6 inches, of dark gray (5Y 4/1) silty clay loam with dark yellowish brown (10YR 4/6) mottles. Hydrology. No saturation was observed in the soil pit; however, saturation is expected in the growing season due to the presence of hydric soil and oxidized roots. Ponded water was observed elsewhere in the wetland. Wetland 1.7R receives runoff from adjacent roads and developments, and discharges to a catch basin. Wetland 2.6L Size and location: The 0.02 -acre wetland is located adjacent to the 1-405 off ramp to north SR 167. Wetland 2.6L is a narrow depression /ditch that is bordered by 1-405 to the south and commercial development to the north. Vegetation: Dominated by reed canarygrass, common velvetgrass, and Himalayan blackberry. Soils: An A horizon of black (10YR 2/1) sandy loam extends 11 inches deep. Below 11 inches is a B horizon of greenish gray (Gley 5GY 5/1) clay loam with dark yellowish brown (10YR 4/4) mottles. Hydrology: Saturated soils and free water were present at the surface of the soil pit. Wetland drainage patterns were also observed. Wetland 2.6L receives road and parking lot runoff, and discharges to Rolling Hills Creek. Wetland 25.0L Size and location: The 5.88 -acre wetland is adjacent to SR 167, between 1-405 and SW 41st Street. Wetland 25.0L is a long depression that is bordered by SR 167 to the east and commercial development to the west. Vegetation: Dominated by black cottonwood, Pacific willow, Himalayan blackberry, and reed canarygrass. Soils: Soils in the southern portion of the wetland are an A horizon of very dark grayish brown (10YR 3/2) sandy clay loam with cobbles extending to a depth of 9 inches, over a B horizon of dark grayish brown (10YR 4/2) sandy clay loam with yellowish brown (10YR 5/8) mottles. Hydrology. Soils were saturated to the surface in soil pits. Areas of standing water were present throughout the wetland. The major sources of hydrology to Wetland 25.0L are surface runoff from adjacent development and precipitation. The wetland is connected, via culvert, to the larger Panther Creek wetland complex east of SR 167. Avoidance and Minimization of Wetland Impacts Table 2 lists wetland avoidance and minimization measures taken by the 1 -405 Project design team, and identifies why potential impacts to individual wetlands were unavoidable. Permanent and temporary impacts to wetlands can be seen in the revised JARPA permit plans, which are included as an attachment to the May 8, 2006, letter to Ecology from Allison Ray. 4 Wetland Identifier Area (acres) Permanently Filled or Otherwise Disturbed Area (acres) Temporarily Filled or Otherwise Disturbed Area (acres) .. Avoidance and Minimization . 0 4L 0 11 ..08 --) 0 ' . 0 01 Unavoidable due to roadway design standards. Retaining wall not viable due to safety concerns. 0.5L 0.05 0.05 - Unavoidable due to roadway design standards. Retaining wall not viable due to safety concerns. 0.6L 0.17 0.01 ' 0.01 Unavoidable due to roadway design standards. 0.9R 1.7R 1.01 0.01 0.01 Stormwater outfall designed to minimize impacts to wetland. 0.46 0.02 — 0.46 0.02 - Unavoidable due to roadway design standards and to avoid impacts to local business. 2.6L - Unavoidable due to roadway design standards. 25.0 :_ . 5 88 . 0 99 . 0 56 A retaining wall will be constructed along the entirety of this wetland to avoid and minimize impacts. A new ecology embankment will need to be constructed that will extend the wall an additional 10 feet to the west. This additional 10 feet is required to meet the flow (head) requirements to allow the ecology embankment to function properly. TOTAL 7.70 1.62 0.59 5 Table 2 Avoidance and Minimization Measures Unavoidable Wetland Impacts Wetlands that will be impacted by the Project are listed and classified in Table 3 under four different classification systems: Cowardin (Cowardin et aI.1979), Ecology (Ecology 1997), local, and Hydrogeomorphic (HGM). Wetlands were classified during field visits and wetland delineations using the respective rating form. • Wetland Identifier - - Area • (acres) Permanently -. _F]iled or otherwise.. Disturbed . Wetland.Area, ' - (acres) • Temporarily . FlIled or Otherwise Disturbed Wetland Area •(acres) . Cowardin Classification Ecology Rating` Local Jurisdiction and Rating ° , HGM Classification 0.4L 0.11 0.08 0.01 PEM IV Tukwila -3 Depressional 0.5L 0.05 0.05 - PEM PSS IV IV Tukwila -3 Depressionat 0.6L 0.17 0.01 0.01 Tukwila -3 Depressional 0.9R 1.01 0.01 0.01 - PAB III III Tukwila -2 Depressionai 1.7R 0.46 0.46 PSS Renton -3 Depressionat 2.6L 0.02 0.02 - PEM IV Renton -NR Depressionat 25.0L 5.88 0.99 0.56 0.59 PSS III Renton -3 Depressional TOTAL 7.70 1.62 Table 3 Potential Impacts to Wetlands by Classification PEM - Palustrine Emergent; PSS - Palustrine Scrub- Shrub; PAB - Palustrine Aquatic Bed 2 NR - Non - regulated. City of Renton Category 3 wetlands less than 2,200 square feet are exempt from regulation under Renton Municipal Code (RMC) Critical Areas Regulations (RMC 4 -3 -50 B[7]). City of Tukwila wetlands that are 1,000 square feet and less that do not meet any wetland rating criteria are exempt from requirements of the Tukwila Municipal Code (TMC) Chapter 18.45 (TMC 18.45.180A). 3 HGM classification is based on wetland rating forms (Western Washington region). Lost or Degraded Wetland Functions Wetland function was evaluated using the WSDOT Wetland Functions Characterization Tool for Linear Projects manual (Null et al. 2000) and was also assessed based on best professional judgment. In Table 1, wetland function is divided into 14 categories. These 14 categories can be used to assess what level of functional Toss or degradation may occur to the impacted wetlands. Note that Table 1 shows existing functions of impacted wetlands -not lost or degraded functions. Proposed Mitigation Credits To fully compensate for 1.62 acres of unavoidable permanent impacts to wetlands from the Project, WSDOT proposes to debit 1.353 wetland mitigation credits from the Springbrook Creek Wetland and Habitat Mitigation Bank (Springbrook Bank) credit ledger. Section 2.7 of the MBI and, more specifically, Tables 2 -3, 2-4, 2 -5, and 2 -6 clearly identify the wetland functional improvements that will be made at the Springbrook Bank. These functional improvements will offset the Toss of wetland area and functions that are identified in Table 1 of this memo. Wetlands temporarily impacted by construction activities (0.59 acres) will be restored to pre- construction conditions immediately after construction. Table 4 summarizes the credit withdrawal amounts for all wetlands permanently impacted by the Project. More detailed information about mitigation credit compensation ratios can found in Chapter 4 of the Mitigation Banking Instrument (MBI) (WSDOT 2006). 6 Wetland Identifier Total. Wetland Area (acres) Permanently Filled or Otherwise Disturbed Wetland Area (acres)' . . . Ecology Rating . . Local , Jurisdiction : and Rating Credit Required per . Impact Acre , • Bank Credit Debit Amount 0.4L 0.11 0.08 IV Tukwila -3 0.70 0.0560 0.5L 0.05 0.05 IV Tukwila -3 0.70 0.0350 0.6L 0.17 0.01 IV Tukwila -3 0.70 0.0070 0.9R 1.01 0.01 III Tukwila -2 0.85 0.0085 1.7R 0.46 0.46 III Renton -3 0.85 0.3910 2.6L 0.02 0.02 IV Renton -NR 0.70 0.0140 25.0L 5.88 0.99 III Renton -3 0.85 0.8415 TOTAL 7.70 1.62 1.3530 Table 4 Mitigation Credit Debit Summary Table ' Graphical representations of project wetland impact areas are depicted in the I -405, I -5 to SR 169 Project JARPA drawings. 2 NR - Non - regulated. City of Renton Category 3 wetlands less than 2,200 square feet are exempt from regulation under RMC Critical Areas Regulations (RMC 4 -3 -50 B[7]). City of Tukwila wetlands that are 1,000 square feet and less that do not meet any wetland rating criteria are exempt from requirements of the TMC Chapter 18.45 (TMC 18.45.180A). Springbrook Bank - Purpose, Goal, and Objectives Specific to the Project, the purpose of Springbrook Bank is to provide compensation for unavoidable impacts to wetlands and other aquatic resources caused by WSDOT highway construction projects within the service area. The §ervice area of Springbrook Bank includes portions of Water Resource Inventory Areas (WRIAs) 8 and 9, which include the Lower Green River, Black River, West Lake Washington, East Lake Washington, May Creek, and Mill Creek Basins, and the Lower Cedar River Basin to SR 18. The service area is described in more detail in Chapter 1.3 of the MBI. The goals of Springbrook Bank are to increase wetland area; improve hydrologic, water quality, and habitat functions; improve fish refuge /rearing habitat; and promote environmental education. The objectives of Springbrook Bank are to re- establish 17.79 acres of wetland, rehabilitate 52.47 acres of wetland, enhance 33.40 acres of wetland, and enhance 7.80 acres of upland and 6.56 acres of riparian upland adjacent to Springbrook Creek for a total of 118.02 acres. The proposed restoration and enhancement activities will re- connect floodplain wetlands with Springbrook Creek, re- establish historical wetlands, and improve water quality, hydrologic, floodplain, habitat, and riparian functions in a highly urbanized area. WSDOT anticipates using its credits from Springbrook Bank within the service area. The functional improvements at the Springbrook Bank site are outlined in Chapters 2.6 and 2.7 of the MBI. Springbrook Bank objectives are described in more detail in Chapter 3 of the MBI. 7 • • Credit Purchase and Timing Credits will be released from the Springbrook Bank according to Table 4 -3 of the MBI, provided that the Springbrook Bank demonstrates success in meeting the performance standards outlined in the MBI. The performance standard that must be met to release the initial 4.5 credits for use by the Project is not associated with achieving construction milestones or vegetation growth parameters. Instead, the performance standard associated with the initial credit release is the approval /signing of the MBI and recording of the conservation easement for the Springbrook Bank site. The credit release process, including performance standard milestones, is outlined in Chapter 4 of the MBI. When the performance standard allowing initial credit release is met, the Project team will provide this information to the Multi- Agency Permitting (MAP) Team members as either part of the permitting process or as a condition of the issued permit(s), depending on the date of credit release. Criteria for Using Bank Credits For a project to use credits from the Springbrook Bank, the wetlands or aquatic resources impacted by the project must be located within the service area and meet the Springbrook Bank's purpose, goal, and objectives. The 1 -405 Renton Nickel Improvement Project, 1 -5 to SR 169 is located entirely within the service area of the Springbrook Bank. In addition, the wetland mitigation needs of the Project, correspond with the purpose, goals, and objectives of the Springbrook Bank. Therefore, the Project meets all required criteria for use of Springbrook Bank credits for compensation of unavoidable permanent impacts to wetlands. 8 References • 1 City of Renton. 1992. Renton's Critical Areas Inventory. Prepared by Jones and Stokes. City of Tukwila. 2004. City of Tukwila Wetland/Watercourse Buffer Map. Dated July 15, 2004. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. Publ. # FWS /OBS- 79/31. U.S. Fish and Wildlife Service. Ecology (Washington State Department of Ecology). 1997. Washington State Wetlands Identification and Delineation Manual. Publication No. 96 -94. Olympia, WA. Washington State Department of Ecology. Null, W.S., G. Skinner, and W. Leonard. 2000. Wetland Functions Characterization Tool for Linear Projects. Olympia, WA: Washington State Department of Transportation Environmental Affairs Office. www.wsdot.wa.gov / environment /biology /docs /bpjtool.pdf. Washington State Department of Transportation (WSDOT). 2006. Springbrook Creek Wetland and Habitat Mitigation Bank: Mitigation Bank Instrument. Final Draft Dated March 1, 2006. Washington State Department of Transportation (WSDOT). 2006. 1-405, 1 -5 to SR 169, Renton Nickel Improvement Project: Wetland Biology Report. Final Dated May, 2006. 9 TABLE OF CONTENTS SHEET NO. T I T L E 1 TABLE OF CONTENTS 2 VICINITY MAP 3 - 27 PROJECT IMPACTS MAPS & DETAIL SHEETS PURPOSE: Roadway improvements ' 48 to SRI" a SR167,1.405 to SW 41ST ST REFERENCE 0: 200600097 APPLICANT: WSDOT PERMIT DRAWINGS PROPOSED/RETAIN: 1.7 acres of impacts to wetlands and other waters of the U.S. IN: S and Wetlands COUNTY: Kng STATE: WA DATE: 4/28/08 HORIZONTAL DATUM: w 88 SHEET 1 OF 27 WETLAND 0.1R WETLAND 0.15R WETLAND 0.25M WETLAND 0.3R WE LAND 0.4L WETLAND 0.5L WETLAND 0.6L WETLAND 0.9R WETLAND 1.7R PURPOSE: Roadway improvements PROJECT LOCATION v WETLAND 2.2R WETLAND 2.31 R WETLAND 2.6L WETLAND 2.81 L WETLAND 2.9L WETLAND 24.7R WETLAND 25.7L WETLAND 25.0L O STREAM 09.GR -0.2 O STREAM 09.GR -0.4 ® STREAM 09.GR -0.7 ® STREAM 09.DW-0.8 ® STREAM 09.GR -1.8 ® STREAM 09.SC -2.8 70 STREAM 09.SC -2.8 ® STREAM 09.RH -2.6 ® STREAM 09.RH -2.8 10 STREAM 09.SC -2.8 PRING I OCk I-405,1-5 to SR169 & 8R167,1 -405 to SW 41ST ST REFERENCE*: 200600097 APPLJCANT: WSDOT Key Map & Vicinity Map 11 STREAM 09.RH-3.0 STREAM 09.RH-3.0 13 STREAM 08.LW -3.7 14 STREAM 09.SC -2.8 15 STREAM 09.SC -25.7 D S \ S �CN Ss, 5w 7T4 4 SUNSET iS 180TH 4 12 4 1 17 PROPOSED/RETAIN: 1.7 acres of impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4/26/06 TD -2015L 181 TD -2117L TD -2035L 191 TD -2118L U TD -2045R 10 TD -2116R TD -2047R 1111 TD -2119L TD -2050R 112 TD -2119R 16 1 TD -2054L 13 TD -2120R TD -2108L 14 TD -2127L Z q (SOUTH): ONG: - 122 °1602" LAT: 47 °2636" C5] 18 17 F61 19 120 1211 TD -2128L TD -2148L 1D-2158L TD -2155L TD -2159L TD -2162R TD -1085L HORIZONTAL DATUM: NAD 83191 VERTICAL DATUM' NAVD BB SHEET 2 OF 27 11&I/and Tema Pemz /Retied Temp Punt 09.GR-0.2 0 0 0 Baer .91/*/ 0.4L 0.01 0.08 0 0.05 0.21 0.5L 0 0.05 0 0 0 .sragin Tema Pam /mere& Tema Banter Pemz Baker 09.GR-0.2 0 0 0 3974 10441 1 1 1 8 WETLAND IMPACTS c STREAM IMPACTS s Cottage Creek (Stream 09.GC-0.4) .... Wetland 0.4L :— .... ---....__ so, r.9,,.. ..„-..., ,,,.„..,. . • r-. ... ''...., ......_ . fro I • '-'1",:z -.....'"--- .....< .-- ,... . , •. 4, ..:- -- ''="4-.. - -- - ,, ••■"' ..... • . • .. ... 4,..41.... , ..r.......11 -••.-..„, ! -* . - --... • ...w • ""--- ...... - - • ... ,, 1 +T.,: .- . ,......1 - - - - . i...j ... - . .a ••..,.. ov • C14 ••• .P• ..• • - Gilliam Creek 1 (Stream 09.GR-0.2) TUKWILA PKY W.P • 0.50 Wetland 0.5L - - - - PURPOSE: Roadway improvements 1-405,1-6 to SR169 & SR107, 1-405 to SW 41ST ST REFERENCE 5: 200600097 APPLICANT: WSDOT PERMIT DRAWINGS PROPOSEDIRETAIN: 1.7 acres of impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 4/28/013 Legend Wetlands \ 1 L Unsurveyed Wetlands C:D Proposed Stonnwater Pond Proposed Storm Draln Proposed Right-of-Way Existing Right-of-Way Easement Une 1 . _ = _41 Existing Drainage Culvert x- with ID . ct Piped Stream CuNert with ID and direction of flow Flow Arrow I=B Ecology Embankment (5\ (!\ Cross Section Location .3 shown on D Sheet Cross Section direction on Detail Sheet - - Ditch - --s• Talent Ditch Open Channel Stream 0 Existing Storm inlets c Existing Storm Manholes Eating Orate inlet Proposed Wall ▪ Underdraln - - - Existing Edge of - — - ImpeMous Surface Proposed Edge of Impervious Surface Cut Una - rtu-rou.- Fill Une Existing Guardrail Permanent Wetland impact =20 Temp. Wetland Impact Permanent Stream Impact 777.7.q T. Stream impact • Stream and lAbtland Buffer Nob: Not all legend elements are found on every sheet within this drawbg eet. KEY PLAN 4. 100 200 E Feet HORIZONTAL DATUM: NAD 83/91 VERTICAL DATUM: NAVD 88 SHEET 3 OF 27 Source: WSDOT; 2004, KING COUNTY; 2004 1 Lest updated: 1:31:57 PM 4■8/2006 Note: Direction of North Arrow at lower right comer of this sheet. Note: Drawing legend is depicted on shoot 3. PURPOSE: Roadway Improvements Cottage Cwok • (Stream 09.GC-04) 60 m ✓ n 40 z 20 — 4 0 • P1M. LneoNp100418mtronWRPA 2005Corp Set4P k_dditn • • • EXISTING o GROUND TEMP. WETLAND I. BUFFER IMPACT PERMANENT WETLAND BUFFER IMPACT PERMANENT WETLAND IMPACT 0 +00 0 +20 0 +40 0 +60 (-405,1.6 TO SR169 & SR167, 1-405 TO SW 41ST ST REFERENCE S 200600097 APPLICANT: WSDOT PERMIT DRAWINGS WETLAND 0.4L • i 1 • 1 i . t • PROPOSED GRADE SECTION 1 - MP. 0.46 SEE SHEET 3 FOR PLAN VIEW OF THIS SECTION Wetland 0.41. 60 ✓ 40 L t z r- 20 w J w PE MANENT WETLAND UFFER IMPACT I 0 0 +80 1 +00 1 +20 (FT) - VP PROPOSED/RETAIN: 1.7 acres of Impacts wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: King STATE: WA DATE: 426/06 • i e • 0 20 40 Feet HORIZONTAL DATUM: PROJECT VERTICAL DATLW: NAVD 88 SHEET 4 OF 27 Sbawm Temp. Prim. /ndiaa( Temp. Buffer Perm. Ba/br 09.GR -0.2 1 0 0 0 3974 10441 09.DW-O.8 0 0 0 395 1245 ~why 1 Temp Purim. beim& Temp. Bull&- Perm Suffer 0.81. 0.01 0.01 0 0.07 0.51 W I NI Z I' I rob U1111...4 u+" L„.-a — Wetland 0.6L M. P . 0. 60 C14 WETLAND IMPACTS (Ac) STREAM IMPACTS (af) TUKWILA PKY - • Gilliam Creek (Stream 09.GR -0.2) Unnamed trib. to Gilliam (Stream 09.GC-0.7) TD -2035L Grain Rivey ,(Stream 09MW -0.8) .i ce, I l • .y •••• i • \ •\ s■ ✓.C17... /1 PURPOSE: Roadway improvements 4405,1 -5 to SR189 8 SR187,1-405 to SW 41ST ST REFERENCE 0: 200600097 APPLICANT: WSDOT PERMIT DRAWINGS PROPOSED/RETAIN: 1.7 acres of impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: IGng STATE: WA DATE: 4/28/08 Wetlands Unsunveyed Wetlands Proposed Stomrwater Pond Proposed Storm Drain Proposed Right-of-Way Erdsting Rlghdof Way Easement Une Erdsting Drainage Culvert with ID Piped Stream Culvert with ID and direction of flow —a Flow Mow Ecology Embankment Cross Sedtlon Location shown on D Sheet Cross Section dsection on Detail Sheet Ditch --a. Talent Ditch Open Channel Stream L1m1 of I1Nork Existing Storm Inlets Existing Storm Manholes Existing Grate Inlet Proposed MO Underdraln _ Existing Edge of — Impervious Surface Proposed Edge of Impervious Surface Cut Line FM Une Existing Guardrail Permanent Wetland Impact Temp. Wetlend Impel Permanent Stream Impact [7.7:77q Temp. Stream Impact . Stream and Wetland Sutler Legend Note: Not all legend elements are found on every sheet within this drawing set o zoo o B Feet HORIZONTAL DATUM: NAD 83191 VERTICAL DATUM: NAVD 88 SHEET 5 OF 27 Source: WSDOT; 2004, KING COUNTY; 2004 1 Lest updated: 1:3:t42 PM 4/2812008 1 PAMEnglneedng10041erMronUARPA 2C4351Corp SeMpe00080401Ld0540 Note: Direction of North Arrow at lower right comer of this sheet. • - • • • • Wettand 0.6L • • PURPOSE: Roadway Improvements MI• 1-405,1-5 TO SR169 & SR167, 1-405 TO SW 41ST ST REFERENCE #: R260027 PEFt6IT DRAWINGS • ; 7D-2035L • • 41 PROPOSED/RETAIN: 1.7 acres of Impacts wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: tang STATE: WA DATE: 4/26/06 Note: Drawing legend is depicted on sheet 5. WETLAND 0.6Lo z PERMANENT WETLAND 60 0 a -• w BUFFER IMPACT z 1- < w w ,r) PROPOSED w x 1- o • o //- GRADE 40 0 / 1- r 4- x 1- 4/4 - w 0 x z ......lf ....._____ --_ ; 20 -4 *---... ...--- ! .... 1 TEMP. WETLAND PERMANENT WETLAND IMPACT IMPACT L 1 GROUND 60 1- 40 z 0 20 4.t w 0 0 0+00 0+20 0+40 0+60 0+80 1+00 1+20 1+40 ( F T ) SECTION 2 - MP. 0.66 SEE SHEET 5 FOR PLAN VIEW OF THIS SECTION 4. 0 20 40 Feet HORIZONTAL DATUM: PROJECT VERTICAL DATUM: NAVD 88 SHEET 60F27 SM em Tema Penn.. exam' Temp. Buffer P9vm Bulky 09.DW-0.8 0 0 0 395 1245 Miami Temp. Perm /ndiiec0 Temp Barer Remz Buhr 0.9 R 0.01 0.01 0 0.04 0.19 • • PURPOSE: Roadway improvements Green River -.Stream 09. DW-0.8) TD 20 • iNetland 0.9R TD -2047R Proposed Stormwater ti Pond #MP 0.9 ' • • ■• I I ■ 1-405,1-5 to SR189 & SR167, 1-405 to SW 41ST ST REFERENCE 0: 200600097 APPLICANT: WSDOT PERMIT DRAWINGS I 41 1 WETLAND IMPACTS (Ac) STREAM IMPACTS Is 0 1 I Proposed Ecology Embankment VD -2050R .I II _ _ F.: 5 156TH ST S■• GapQ� vl?�• ✓� 1 PROPOSEDIRETAIN: 1.7 acres of impacts to wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: IGng STATE: WA DATE: 4/26/06 Legend wetlands e1 Unsurveyed wetlands Proposed Stonmrater Pond ,,_ Proposed Storm Drain Proposed Right-of-way Existing o Y Easement Une Existing Drainage Culvert with ID Piped Stream Culvert with ID and direction of flow —i Flow Arrow Ecology Embankment CL__CL Cross Section Location ,. .2 shown on D Sheet Cross Section direction on Detail Sheet —a. Ditch -* Talent Ditch Open Channel Stream - - - - — Limits of Work I s �= i.. •••-•1 Existing Stoma Inlets Existing Storm Mentrobs Existing Grata Inlet Proposed wan . —.—r- Underdraln Existing Edge of tmpeMous Surface Proposed Edge of Impervious Surface Cut Line Alt Une Existing Guardrail Pemranent Wetland Impact Temp. Wbtlard Impact Permanent Stream Impact FM 7 1 Temp. Stream Impact - Stream end wetland Sutter -al -o.- Note Not all legend elements are hound on every sheet wl htn this drawing set KEY PLAN +e 01111111°° ee zoo Feet a HORIZONTAL DATUM: NAD 83/91 VERTICAL DATUM: NAVO 88 SHEET 7 OF 27 Sow= WSDOT; 2004, KING COUNTY: 2004 1 Lent updated* 1 PIA 4126/1008 I 1 PMEn9Insedn91000envIronUARPA 2005 Ccep SeMpe000e0401Ld06.i n Note: Direction of North Arrow of lower right come r r of this sheet. • Y (K l • • Note: Drawing legend is depicted on sheet 7. PURPOSE: Roadway Improvements 60 z z m a r < 40 EXISTING = _GROUND 0 T 20 \ w r 1 r • ✓ r • 1 \'' r y r Y ' r I Y • 1 1 r Y ✓ r r • 1 ' Y Y • � 1 Y ° Y Y / Wetland O.9R • 1 Culvert Inlet l- r r Y 1 111E11111 ►ii Y r Y r Y • �� 11111111.2 =° r 1, Y r r r / r Y r Y • \ / e r ✓ r i" I r r r r Y r � �-- - -_ V r Y 7 Y Y I r ,. 7 Mos _Sgr afar \ 1 r r BUFFER IMPACT WETLAND 0.9R TEMP. WETLAND IMPACT 1- 405,1 -5 TO SR169 & SR167, 1-405 TO SW 41ST ST REFERENCE S: 200600097 APPLICANT: WSDOT PERMIT DRAWINGS r r r r r r PERMANENT WETLANC 60 SEE SHEET 7 FOR PLAN VIEW OF THIS SECTION 40 ; z 20 W 1 PERMANENT WETLAND 0 IMPACT 0 0 +00 0 +20 0 +40 0 +60 0 +80 (FT) SECTION 3 - MP. 0.86 Y Y Y Y r Y PROPOSEDIRETAIN: 1.7 acres of Impacts wetlands and other waters of the U.S. IN: Streams and Wetlands NEAR/AT: Renton COUNTY: Kng STATE: WA DATE: 426/08 O • • • • • • Y r 0 20 40 gad HORQONTALDATUM: PROJECT VERTICAL DATUM: NAVD 88 SHEET 8 OF 27 1^C FLOCC BUFFER FILE NAME s1PSFILE1 TIME 3113743 PM DATE 2/27/2007 PLOTTED BY chvls5 DESIGNED BY 8. .7AR7 ENTERED BY r 7AVL CHECKED BY L. 081: PROD. ENGR. REGIONAL ADM. 0. OVE 0.90 58405-5R181 5.91 - NCV£ ({� L o B� 5 �.�/ 9 _•_ " ./em Ehtr_ /Then MATCH LINE - SEE SHEET PO4 / / =t 1 / / / / END PAV1707 E1 81 18•85.0G C y ;{ DATE RAMP +ON ',xx END CONSTRUCTION' EE1 2D +.06:08 SR 101 -NB4OS !0.00.09 POB .. \NO.G5 1 - - BEGIN CONSTRUCTION E181 13 +14.08 REVISION 87 10 WASH FEO.810 PROJ.NO. TOTAL CURVE DATA P.I. STATION 88705-511181 15.91 51 78 03 "7.1 1J Illet DELTA ga gqra 6887E DATA RADIUS TANGENT 220.00 90.57 PAVING LEGEND; LENGTH 185.73 - REMOVE EXISTING INPERVI085 • CEMENT CONCRETE SIDEWALK - REPLACE PCCP PANELS • GRIND AND OVERLAT C DELTA >v v SPIRAL DATA - PCCP APPROACH SLAB - NMA OVERLAY - NMA PAVEMENT - MOMENT SLAB 04 din\ em 50 100 SCALE IN FEET 15% Design NOT FOR CONSTRUCTION Ls 1 -405 1 -5 TO SR 169 STAGE I - WIDENING ALIGNMENT AND PAT/VG PV4A SKI I, • s L. • 0 .0 ci : • ro V b � F ° n °�wo k� o . i y ■ b Ua Oo ��. p- a eh a o46IF '. ° n' � it' , s � ` - cl — S, 3 0 fh 0. 0 d fi .ti. _mo o y f i.{p11!13i is rv��; +��r�t , o e Q a q y fr oo 0 *• • ... ;.: • f • IMO •)& 6/20106 wog- 9ggim ibiAutasotott trpt I tut '1Y. _ _ _ \A 1241 fvzw, 5 & i : SC, , -tin_- - -- - ; "'._,fit I '�. r_� "•:�. '�F•`.1 Y'e *1 :*1 c • 2 ©d%. MI• & . @, w , E5, , / ®. ey �• g § / ° v \`° I 41 'WI 671 ke Y 6 m ' c ^ 0 Washington State DOT Nickel Fund Project • 4 Scale: 1" = 239 ' N CityGIS5 Copyright ® 2004, All Rig its Reserved The information contained herein is the proprietary property d the cantributars supplied under license and may not be reproduced except as licensed by l igtal Map Products PAV 0. IMPACT AREA LINE _ ) 1.9 . • - 16� 44y,,., OF AO,DIT}-0NAL TE. ru - Y� 4l;1. 40 ■ !� UPLAND VI --..,• - )' - -` ) / i/ o -ZT -- -_ / f ,1]W Sag 'FT= TEMPORARY IMPACT I TT UPL VEX;ETATON s -u -u t = 11= 11 -II- 1=11=11=1 _ l! lLF �frltl. ������i�i «di. �QC ♦ ♦ ♦�� ♦� _ m�►�� . ;:r _ _ _ _- ♦ � . ��`� ♦��r.��•�r..`i� �����f! i �` ♦� � � a� �� ♦� a� �� ♦� �� :� ♦��� ♦!St:�:��1i� �♦��. ♦� �♦♦ �i�S ♦�:�� c� ��� ��j O �a�L��Gf �a� RETAINING_WALL 4.008------ - -- --- — 1 - - - - -- - - - -- ----- - - - - -- - - - - -- PERMANENT IMPACT AREA LTNE - - RETA wi _ -- _o _ = = ^, w� p�� ♦_CAS �� q� =r•� i♦ �_�C7 ♦rG ♦� i ♦� ♦3 - r• w� cc�� : ♦� ��%! i��VG ♦:3' ♦E,�� ��'• �'-�- E ; - RECE PCCP PANELS - GRIND AND OVERLAY ! O t r 114 30 56. FT. Me (iiP/X4 TO STREAM BUFFER �•�,_ ` (STING IMPERVIOUS /CONCRETE SIDEWALK • , r t t ,ter , 4)1 l I 1 j'- / t f, r 1= - HMA OVERL - HMA PAVEMENT - MOMENT SLAB i _ iMPAET IAREAP L I NE � v pka TEMPORARY IMPACTS / s59 T , ',to- " -- - - - _- _ _ - - - - - -- PERMANENT IMPACT—AREA— L`tNE - - 0t fl Fr. it %7:.P r 1 / i J ,/ a ff�� * °/ 10 1 1 1 iz . V- � t I r 1 i I jam. 1 1 1 '$ f r, ?i;.l . 3 , c �'�` G `�' -'`.-+ •'�� 'O / �' � I I - - i t ;I; '1' . 1r N8405 -SR181 10X 141 . 41 .CIGLL! SEE SHEET PV3o 0. 1- W W N W lA W z J 1- 1- a f 100 SC t .#tE7 15% Design NOT FOR CONSTRUCTION FILE NAME •IPWFILE) TIME 1:5T:11 PM DATE 9/27/2007 s PLOTTED BY CbrInkman DESIGNED BY B. HART ENTERED BY C. SAXE CHECKED BY L. SMITH PROJ. ENGR. R. FENTON REGIONAL ADM. D. DYE l;.t!/. .: ,sII -s '= k'MtRAC ±t f :.x VOW . e F+ rlTl s 1.11 I1• %v?'; RJ+aStaW RA'L <1 tweigitk1ata REVISION DATE BY RERIRR STATE 10 WASH N IR ER AVIEN CONTRACT W. FED.AID PROJ.NO. LOCATION NO. ►.I. STOP BOX DATE INTERSTATE 405 Corridor Program I -405 I -5 TO.SR 169 STAGE 1 - WIDENING ALIGNMENT AND PAVING PV3 SCUT or SHEETS