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Home My WebLink AboutPermit L94-0059 - CITY OF TUKWILA - DUWAMISH RIVER TRAIL SEPA ENVIRONMENTAL IMPACT STATEMENTL94 -0059 RIVER TRAIL BANK (P94 -0091) (PLANS IN L94 -0060) SEPA ENVIRONMENTAL IMPACT STATEMENT CITY OF TUKWILA MITIGATED( ETERMINATION OF NONSIGNIF 1NCE (MDNS) DESCRIPTION OF PROPOSAL: STABALIZE APPROXIMATELY 50 LINEAL FEET OF ERODING RIVERBANK ON THE DUWAMISH -GREEN RIVER USING RIPRAP AND VEGETATION. PROPONENT: CITY OF TUKWILA PARKS DEPT. LOCATION OF PROPOSAL, INCLUDING STREET ADDRESS: 6840 SOUTHCENTER BL PARCEL NO: SEC /TWN /RNG: 24/23/4 ADDRESS., IF ANY: LEAD AGENCY: CITY OF TUKWILA FILE NO L94 -0059 The City has determined that the proposal 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. - The conditions to this SEPA `. Determination are attached. This DNS is issued under 197 -11- 340(2) Comments must b;e submitted by The lead agency will not ac.t on this;. :: • proposal. for 15 days from the. date. be l :ow... ■AVIRIESIMP ck Beeler, Responsible Official. City of Tukwila, (206) 431 -3680 6300 Southcenter Boulevard Tukwila, WA 98188 Date, You may appeal this determination to the City Clerk atrC'ity Hall. 6200 Southcenter Boulevard, Tukwila, WA.:98188 no later thai00 days from the above signature date by written appeal: stating the,..basis of the appeal for specific factual-objections'. You .may be requ;i ed' to bear some of the expenses for an a Copies of the procedures for SEPA appeals are available with the City Clerk and Department of Community Development. CITY TUKWILA CONDITIONS Address: 6840 SOUTHCENTER BL Applicant: CITY OF TUKWILA Status: PENDING Approved: Permit No: L94-0059 Applied: 08/04/1994 Type: P-SEPA DNSC Location: 24/23/4 Parcel #: Zoning: 1. The project must Meet,guideltnesspecifiqd the4)ng County Surface Management pubiftatiok,, "GUidiltnes . , ., for 2. PifOr to issuance of ShoreliniPermit, the,f401,f0Ant\shell submit a section of.:::ttie%bank project which Meets*1ng\'•, ii."tUidelAnes,for Bank Stbilizetion Projects" The,secOon shall .Include the,.,:f- ollow;fn, g: -Show existing groundipro-f-ile , in typical section. :,, i-ComOlete desrriptionOf rip-rap dimentil:En ' any dtrectfon,--rAngeof,wefght,lstzt). -Identtfy1::Minfmum.\,2:4sliiiie*Florfrfp-rap; minimUm1•:7,5:1 -. , .:slOpeJor geogrid-.0bOve Ordineiiy-Htgh Water Mark , -Show 2 layers_rip=raVunder,geogridplus 6" deep,,TayerdA 45.(.quirry;:speldtngs;t0,'seil.'tmt,ween rip-rap/soil and c)); geOgrid to'prOyent.lutUre loss ,Of;geogrid fill.. 1"1 CITY TUKWILA CONDITIONS Address: 6840 SOUTHCENTER 8L Applicant: CITY OF TUKWILA Permit No L94-0059 Type: P-SEPA DNSC Location: 24/23/4 Parcel *: Status: APPROVED Applied: 08/04/1994 Approved: 10/12/1994 Zoning - ,e _, 1 The project Must meet,guidelines,specifie0:in theAAng , , County'Surface4.:Water'Management publicetionbuideltnes , , ) ,. for Bank Stabilization Projects". ■ 2. Prldr to issuance of Shoreline Permit, thea0p14cant'4hall submit a section of the project which ineetsiangpa,. !!Guidelines for Bank Stabilization Projects"P The ,. , nfshall include the-following:- ... , :ShOW proflle typical section -Complete desriptlon Of\rip-rap'-(minmium dimentslon any direction, -r angeof wet4it,fsf_i. a). -IdentifyMinimum20steliejor/r1P-rap; miniiiirm74"$:0 s1Al,Pe,jOr gidgrid,e66ve Ordinary.,H14h Water MarkV'' ,..:. 4. < . ., , -Show 2 layersrtPrO.::,,under\geogrldjplus 6" deep,,,Jaier .0._cluirryspil.di,ngSAO:seil:tietween'rip-rap/soiland '04 • giogrid toprevent;.'futUre tii4,ii.C>ge.ggrid fql.e-- i .:': '"'.. '. 'i .--7., -,:,. •fr-:- A F F I D A V I T I, Inez Lambert O Notice of Public Hearing fl Notice of Public Meeting O Board of Adjustment Agenda Packet fl Board of Appeals Agenda Packet O Planning Commission Agenda Packet Short Subdivision Agenda Packet O F DISTRIBUTION hereby declare that: LI Notice of Application for Shoreline Management Permit fl Shoreline Management Permit LI Determination of Non - significance Mitigated Determination of Nonsignif icance L Determination of Significance and Scoping Notice ❑ Notice of Action El Official Notice Other Other was mailed to each of the following addresses on October 14, 1994 FAXED TO SEATTLE TIMES (10- 14 -94, publication) MAILED TO DOE /SEPA MAELED TO APPLICANT (City of Tukwila) SENT TO CITY CLERK AND MAYOR'S OFFICE Name of ProjectRiver Trail Bank Stabilizatig13.gnature E File Number L94 -0059 A F F I D A V I T I, Inez Lambert Notice of Public Hearing Notice of Public Meeting Board of Adjustment Agenda Packet Board of Appeals Agenda Packet Planning Commission Agenda Packet Short Subdivision Agenda Packet Notice of Application for Shoreline Management Permit flShoreline Management Permit O F D I S T R I B U T I O N • hereby declare that: Determination of Non - significance Mitigated Determination of Nonsignificance Determination of Significance and Scoping Notice Notice of Action Official Notice Other Other was mailed to each of the following addresses on FAXED TO SEATTLE TIMES (10- 14 -94, publication) MAILED TO DOE /SEPA MAELED TO APPLICANT (City of Tukwila) SENT TO CITY CLERK AND MAYOR'S OFFICE October 14, 1994 Name of ProjectRiver Trail Bank Stabilizatigrignature__� File Number L94 -0059 CHECKLIST: ENVILNMENTAL REVIEW /SHORELINE L MIT MAILINGS FEDERAL AGENCIES )U.S. ARMY CORPS OF ENGINEERS FEDERAL HIGHWAY ADMINISTRATION EPT. OF INTERIOR -FISH & WILDLIFE SERVICE WASHINGTON ( )U.S. ENVIRONMENTAL PROTECTION AGENCY ( )U.S. DEPARTMENT OF H.U.D. (REGION X) STATE AGENCIES V)OFFICE OF ARCHAEOLOGY (TRANSPORTATION DEPARTMENT DEPT. OF NATURAL RESOURCES () OFFICE OF THE GOVERNOR .iDEPT. OF COMMUNITY DEVELOPMENT )-DEPT. OF FISHERIES },K.C. PLANNING & COMMUNITY DEV. ( )BOUNDARY REVIEW BOARD ( )FIRE DISTRICT #11 ( )FIRE DISTRICT #2 ( )SOUTH CENTRAL SCHOOL DISTRICT ( )TUKWILA LIBRARIES ( ) RENTON LIBRARY ( )RENT LIBRARY ( )CITY OF SEATTLE LIBRARY ( )US WEST ' ( )SEATTLE CITY LIGHT ( )WASHINGTON NATURAL GAS ( )WATER DISTRICT #75 ( )SEATTLE WATER DEPARTMENT ( )GROUP W CABLE ( )OLYMPIA PIPELINE ( )KENT PLANNING DEPARTMENT. (i TU WILA CITY DEPARTMENTS: PUBLIC WORKS ( ) FIRE ( )POLICE ( )FINANCE ( )PLANNING ( )BUILDING (\ PARKS AND ORECREATION ( )TUKWILA MAYOR (')DEPARTMENT OF SOCIAL & HEALTH SERVICES DEPT. OF ECOLOGY, SHORELANDS DIVISION DEPT. OF ECOLOGY, SEPA DIVISION* EPARTMENT OF WILDLIFE FFICE OF ATTORNEY GENERAL *SEND CHECKLIST WITH DETERMINATIONS. AND *SEND SITE MAPS WITH DECISION RING COUNTY AGENCIES 6.46KING COUNTY DEPT. OF PARKS ( )HEALTH DEPARTMENT PORT OF SEATTLE ( UILDING & LAND DEV. DIV.- SEPA INFORMATION CENTER SCHOOLS /LIBRARIES ( )HIGHLINE SCHOOL DISTRICT ( )KING COUNTY PUBLIC LIBRARY ( )SEATTLE MUNICIPAL REFERENCE LIBRARY ( )SEATTLE SCHOOL DISTRICTS ( ) RENTON SCHOOL DISTRICT UTILITIES ( ) PUGET SOUND POWER & LIGHT ( )VAL -VUE SEWER DISTRICT ( )WATER DISTRICT #20 ( )WATER DISTRICT #125 ( )CITY OF RENTON PUBLIC WORKS ( )RAINIER VISTA ( )SKYWAY CITY AGENCIES ( ) RENTON PLANNING DEPARTMENT ( )CITY OF SEA -TAC ( )CITY OF SEATTLE ( )CITY OF BURIEN ( )TUKWILA PLANNING COMMISSION MEMBERS ( )TUKWILA CITY COUNCIL MEMBERS OTHER LOCAL AGENCIES PUGET SOUND REGIONAL COUNCIL (� P.S. AIR POLLUTION CONTROL AGENCY SW K.COUNTY CHAMBER OF COMMERCE ( MUCKLESHOOT INDIAN TRIBE ( UWAMISH INDIAN TRIBE )DAILY JOURNAL OF COMMERCE )VALLEY DAILY NEWS METRO ENVIRONMENTAL PLANNING DIV. OFFICE /INDUSTRIAL 5,000. GSF OR MORE RESIDENTIAL 50 UNITS OR MORE RETAIL 30,000 GSF.OR --MORE • MEDIA ( ) HIGHLINE TIMES SEATTLE TIMES PUBLIC NOTICE MAILINGS FOR PERMITS 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) Include these documents: SEPA Determination (3 -part form 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 & sent to newspaper). SHORELINE MAILINGS Notice of Application: Notice of application for a substantial development Permit must be mailed to owners and to property owners within 300 feet of subject property, prepare an affidavit of publication, and publish two consecutive weeks with deadline for comments due 30 days after last newspaper publication date. Shoreline Permit: Mail to: (within 8 days of decision; 30 -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). Include these documents: Shoreline Substantial Development Permit (3 -part form from Sierra) Findings (staff report, if applicable) Shoreline 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 w /structures & shoreline _ Grading plan _ Vicinity map SEPA Determination (3 -part form from Sierra) Findings (staff report, usu. with MDNS) SEPA Checklist (filled out by applicant) Any background studies related to impacts on shoreline Notice of Application Affidavit of Distribution (notice was mailed & sent to newspaper) Affidavit of Publication (notice was published in newspaper). . M E M O R A N D U M TO: Libby Hudson, Associate Planner FROM: Phil Fraser, Senior Engineer DATE: 10/13/94 SUBJECT: Green River Bank Stabilization Sepa /Shoreline (L94- 0059/L94/0060) 1. A Flood Zone Control (FZC) Permit will be issued for this work. 2. This work will be in accordance with K.C. Surface Water Management's "Guidelines for Bank Stabilization Projects" 3. Revisions to the typical section to include: - Complete description of rip -rap (minimum dimension any direction, range of weight, size) - Identify minimum 2:1 slope for rip -rap; minimum 1.75:1 slope for geogrid above OHWM. - Show 2 layers rip -rap under geogrid plus 6" deep layer of quarry spaldings to seal between rip rap /soils and geogrid to prevent future loss of geogrid fill. - Show existing ground profile in typical section. Plan also to: - Reference K.C. Surface Water Management's "Guidelines for Bank Stabilization Projects" - Meet State Fish and Wildlife's HPA, and include planting schedule. This schedule to include tree trunks embedded into rip -rap, if required by HPA. - Reference NGV Datum Applicant to: - Obtain FZC Permit prior to beginning work; provide HPA and Shoreline which become conditions of FZC Permit. xc. Don Williams John Pierog Development File: Green River Bank Stabilization • City of Tukwila Department of Community Development MEMORANDUM DATE: October 3, 1994 TO: Don Williams FROM: Ubby Hudson RE: Shoreline Substantial Development Permit #L94-0060, Green River Bank Stabilization John W. Rants, Max r Rick Beeler, Directc The attached letter was received regarding the above project. The Muckleshoot Tribe objects to the use of rip rapping for river bank stabilization based on the negative impact to juvenile salmon. Please review the letter and let me know when we can get together to discuss the project. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • (206) 4313670 • Fax (20() Amoos Ms Denni Shefrin City of Tukwila Department of Community Development 6300 Southcenter Boulevard Tukwila, Washington 98188 MUCKLESHOOT INDIAN TRIBE FISHERIES DEPARTMENT RECEIVED SEP 2 8 194 COMMUNITY DEVELOPMENT 23 September 1994 RE: APPLICATION FOR SHORELINE MANAGEMENT SUBSTANTIAL DEVELOPMENT PERMIT PROJECT L9400060 (DUWAMISH RIVER RM 12.0 BANK STABILIZATION WRIA 09.0001) Dear Ms Shefrin: The Fisheries Department of the Mucldeshoot Indian Tribe has reviewed the public notice of application to undertake approximately 40 feet of bank stabilization along the Duwamish River. The Tribal Fisheries Department opposes the issuance of the permit for the project as currently proposed. The proposed project area is within the reach of the river where outmigrating juvenile salmonids first begin to encounter salt water. Indeed, Tribal surveys have determined that during the latter half of the juvenile outmigration period that the salt wedge in the Duwamish River can reach the State Route 405 Bridge. Thus, during portions of the outmigration season juvenile salmonids will begin their transition to an estuarine environment in or near this reach of the river. During this transition juvenile salmonids are vulnerable to a variety of stresses. Upon reaching the salt wedge the juveniles of some salmonid species stop until they have adjusted to the different salinity regime. Thus, the protection of existing habitat and the restoration of former habitat in these vital reaches of rivers is very important. Rip rap surfaces often provide less quality and quantity of food materials for entry the salmonid food chain than vegetated banks that contain inwater large woody debris structures. In addition, the river bank slope for rip rap banks tend to be steeper than natural or semi - natural banks reducing the usable exposed surface area. Furthermore, observations of the inside part of the meander bend in this section of the river aptly demonstrates that the least rip rap reaches of the levee contain the nearshore river reaches with the greatest amount of soft bottom substrate, a key feature in the provision of food into the salmonid food chain. 39015 172nd Avenue S.E. • Auburn, Washington 98002 • (206) 931 -0652 • FAX (206) 931 -0752 �,� The permit for the project has currently proposed should be denied as it will continue the process of hardening the river bank and thus exacerbate the currently poor habitat conditions in this vital section of the river. An acceptable project would involve no or a minimal amount of rip rap in conjunction with a bioengineered bank that incorporated large woody debris in addition to a large scale revegetation program.. I thank you for your attention to our concerns. If you have any questions regarding this letter call me at 931 -0652. cc: MIT / Eric Warner WDF / Sincerely, Par � Roderick Malcom Habitat Biologist ,. . RIVER TRAIL BANK STABILIZATION Environmental Checklist August 1, 1994 Prepared for: City of Tukwila Parks & Recreation Department Tukwila, Washington Prepared by: KPFF Consulting Engineers 1201 Third Avenue, Suite 900 Seattle, WA 98101 Control No. --File No. Fee RIVER TRAIL BANK STABILIZATION ENVIRONMENTAL CHECKLIST A. BACKGROUND 1. Name of proposed project, if applicable: River Trail Bank Stabilization 2. Name of applicant: City of Tukwila Parks & Recreation Department 3. Address and phone number of applicant and contact person: Don Williams, Director City of Tukwila Parks & Recreation Department 6200 Southcenter Blvd. Tukwila, WA 98188 (206) 433 -1843 4. Date checklist prepared: August 1, 1994 5. Agency requesting checklist: City of Tukwila 6. Proposed timing or schedule (including phasing, if applicable): Estimated one month duration, with construction to begin approximately on October 1, 1994. 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. ccm-- co91 294 Receipt No. RECEIVED AU ti 31994 COMMUNE 1 Y DEVELOPMENT A related project to this proposal is the connection of the Tukwila Trail a few hundred feet up and downstream from this project. The trail is to be located at the top of bank, thus requiring the bank stabilization. 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. None. ENVIRONMENTAL CHECKLIST - PAGE 1 9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. None. 10. List any governmental approvals or permits that will be needed for your proposal. • Hydraulic Project Approval - WDF • SEPA Checklist - City of Tukwila • City Utility Permit - City of Tukwila • Flood Control Zone - City of Tukwila • Shoreline Substantial Development - City of Tukwila 11. Give a brief, complete description of your proposal, including the proposed uses and the size of the project and site. There are several questions later in this checklist that ask you to describe certain aspects of your proposal. You do not need to repeat those answers on this page. Section E requires a complete description of the objectives and alternatives of your proposal and should not be summarized here. The nature of the proposed improvements are to stabilize approximately 50 lineal feet of eroding riverbank on the Duwamish -Green River using riprap and vegetation. To perform this work, a temporary construction road will be required to get crews and equipment to and from the adjacent parking lots. 12. Location of the proposal. Give sufficient information for a person to understand the precise location of your proposed project, including a street address, if any and section, township, and range, if known. If a proposal would occur over a range of area, provide the range or boundaries of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if reasonably available. While you should submit any plans required by the agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist. The location of the eroding riverbank is on a south portion of the Duwamish -Green River adjacent to the Fort Dent 2 site, Section 24, Township 23 N, Range 4 E. The address for Fort Dent 2 is: 6840 Southcenter Blvd. Tukwila, WA 98188 13. Does this proposal lie within an area designated on the City Comprehensive Land Use Policy Plan as environmentally sensitive? Yes, the riverbank is designated as environmentally sensitive. ENVIRONMENTAL CHECKLIST - PAGE 2 B. ENVIRONMENTAL ELEMENTS 1. Earth a. General description of the site (circle one): Flat, rolling, hilly, steep slopes, mountainous, other: The area surrounding the river is generally flat, but the project involves stabilizing a steep slope that is sloughing along the riverbank. b. What is the steepest slope on the site (approximate percent slope)? 60% c. What general types of soils are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural soils, specify them and note any prime farmland. Fine sands and silty sands. d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. Yes, a few hundred feet upstream of this location, a similar bank slough occurred and was repaired with quarry spalls and riprap. e. Describe the purpose, type and approximate quantities of any filling or grading proposed. Indicate source of fill. Two hundred cubic yards of quarry spalls and riprap backfill to be placed to approximately 2 feet above ordinary high water mark, and quarry spalls and gravel borrow above that point to match the existing bank. f. Could erosion occur as a result of clearing, construction or use? If so, generally describe? g. Yes, erosion could occur during construction because of the temporary removal of vegetation. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? None. Evaluation for Agency Use Only ENVIRONMENTAL CHECKLIST - PAGE 3 h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: The nature of the project is to prevent any more erosion of the slope into the river. During construction, appropriate erosion control measures will be used to minimize any unnecessary erosion. 2. Air a. What types of emissions to the air would result from the proposal (i.e., dust, automobile, odors, industrial wood smoke) during construction and when the project is completed? If any, generally describe and give approximate quantities if known. During construction, minimal construction vehicular exhaust and dust emissions will occur. After completion, no emissions to the air should result. b. Are there any off -site sources of emissions or odor that may effect your proposals? If so, generally describe. No. c. Proposed measures to reduce or control emissions or other impacts to air, if any: Utilize appropriate BMP's to minimize emission and dust. Such BMP's may include, but not limited to, minimizing exposed surfaces, sweeping the parking lots, and spraying water on exposed surfacing. 3. Water a. Surface 1 ) Is there any surface water body on or in the immediate vicinity of the site (including year -round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. 2 Adjacent to the project is the Duwamish -Green River. Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. Yes, the project requires stabilizing an existing bank that is currently sloughing into the river. ENVIRONMENTAL CHECKLIST - PAGE 4 Evaluation for Agency Use Only 3) Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material. Fifty cubic yards of excavation will be required to key the rock material into the bank. 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities, if known. No. 5) Does the proposal lie within a 100 -year floodplain? If so, note location on the site plan. Yes. 6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. No. b. Ground 1 ) Will ground water be withdrawn, or will water be discharged to ground water? Give general description, purpose, and approximate quantities if known. No. 2) Describe waste material that will be discharged into the ground from septic tanks or other sources, if any (for example: Domestic sewage; industrial, containing the following chemicals...; agricultural; etc.). Describe the general size of the system, the number of such systems, the number of houses to be served (if applicable), or the number of animals or humans the system(s) are expected to serve. None. Evaluation for Agency Use Only ENVIRONMENTAL CHECKLIST - PAGE 5 c. Water Runoff (including stormwater) 1 ) Describe the source of runoff (including stormwater) and method of collection and disposal, if any (include quantities, if known). Where will this water flow? Will this water flow into other waters? If so, describe. Stormwater runoff will sheet flow down the embankment into the Duwamish -Green River. Any runoff from the construction driveway will be collected by existing catch basins in the parking lot. 2) Could waste materials enter ground or surface waters? Is so, generally describe. Waste or toxic materials could enter surface water during construction as a result of an equipment malfunction or accidental spill which releases diesel fuel, hydraulic fluid or lubricants. d. Proposed measured to reduce or control surface, ground and runoff water impacts, if any: The proposed project will enhance water quality to the surface water by eliminating any more bank erosion. 4. Plants a. Check or circle types of vegetation found on the site: deciduous tree: alder, maple, aspen, other _L._ evergreen tree: fir, cedar, pine, other shrubs grass pasture crop or grain wet soil plants: cattail, buttercup, bullrush, skunk cabbage, other water plants: water lily, eelgrass, milfoil, other other types of vegetation b. What kind and amount of vegetation will be removed or altered? Three hundred square yards of tall grass and black berry bushes for both the bank stabilization and the temporary construction road will be removed and replaced after construction. c. List threatened or endangered species known to be on or near the site. None. ENVIRONMENTAL CHECKLIST PAGE 6 Evaluation for Agency Use Only d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: Native plants will replace all plants removed during construction of the project. 5. Animals a. Circle any birds and animals which have been observed on or near the site or are known to be on or near the site: birds: hawk, heron, eagle, songbirds, other: Canadian Geese. Crows. Robins mammals: deer, bear, elk, beaver, other: Deer fish: bass, salmon, trout, herring, shellfish, other: Salmon b. List any threatened or endangered species known to be on or near the site. None. c. Is the site part of a migration route? If so, explain. The Green River is a spawning route for local salmon coming from the Puget Sound. d. Proposed measures to preserve or enhance wildlife, if any: Eliminating bank erosion should enhance fish migration. upstream. 6. Energy and Natural Resources a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet the completed project's energy needs? Describe whether it will be used for heating, manufacturing, etc. None. b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. No. c. What kinds of energy conservation features are included in the plans of this proposal? List other proposed measures to reduce or control energy impacts, if any: None. ENVIRONMENTAL CHECKLIST - PAGE 7 Evaluation for Agency Use Only 7. Environmental Health a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spill, or hazardous waste, that could occur as a result of this proposal? If so, describe. No, see B.3.c.2. 1 ) Describe special emergency services that might be required. None. 2) Proposed measures to reduce or control environmental health hazards, if any: None. b. Noise 1 ) What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)? 2 None. What types and level of noise would be created by or associated with the project on a short -term or a long- term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. During construction, there will be noise from construction equipment. Normal working hours will be from 7:00 a.m. to 7:00 p.m. Heavy construction equipment includes trucks hauling construction materials, backhoe for earth excavation, and bull dozer for clearing and grubbing. 3) Proposed measures to reduce or control noise impacts, if any: Contractor will abide by the City of Tukwila's Noise Ordinance. 8. Land and Shoreline Use a. What is the current use of the site and adjacent properties? Current use of the site is a riverbank surrounded by commercial businesses. ENVIRONMENTAL CHECKLIST - PAGE 8 Evaluation for Agency Use Only b. Has the site been used for agriculture? If so, describe. No. c. Describe any structures on the site. None. d. Will any structures be demolished? If so, what? No. e. What is the current zoning classification of the site? Regional Retail. f. What is the current comprehensive plan designation of the site? Commercial. g. If applicable, what is the current shoreline master program designation of the site? Urban. h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. Yes, with this project being on the Duwamish -Green Riverbank, it is environmentally sensitive. i . Approximately how many people would reside or work in the completed project? None. Approximately how many people would the completed project displace? None. k. Proposed measures to avoid or reduce displacement impacts, if any: N/A I. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any. The project is a maintenance issue to protect the current and projected /and uses. ENVIRONMENTAL CHECKLIST - PAGE 9 Evaluation for Agency Use Only 9. Housing a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low- income housing. None. b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low- income housing. None. c. Proposed measures to reduce or control housing impacts, if any: None. 10. Aesthetics a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building materials(s) proposed? None. b. What views in the immediate vicinity would be altered or obstructed? None. c. Proposed measures to reduce or control aesthetic impacts, if any: None. 11 . Light and Glare a. What type of Tight or glare will the proposal produce? What time of day would it mainly occur? None. b. Could light or glare from the finished project be a safety hazard or interfere with views? No. c. What existing off -site sources of Tight or glare may affect your proposal? None. ENVIRONMENTAL CHECKLIST - PAGE 10 Evaluation for Agency Use Only d. Proposed measures to reduce or control light and glare impacts, if any. None. 12. Recreation a. What designed and informal recreational opportunities are in the immediate vicinity? Within a quarter mile to the northwest of the site is a City Park with baseball and soccer fields. b. Would the proposed project displace any existing recreational uses? If so, describe. No. c. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any: None. 13. Historic and Cultural Preservation a. Are there any places or objects listed on, or proposed for, national, state or local preservation registers known to be on or next to the site? If so, generally describe. No. b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site. N/A c. Proposed measures to reduce or control impacts, if any. N/A 14. Transportation a. Identify public streets and highways serving the site, and describe proposed access to the existing street system. Show on site plans, if any. The project is accessed by Southcenter Boulevard. Within a half mile of the site, Southcenter Blvd. intersects Interurban Avenue in close proximity to access ramps for 1 -405. ENVIRONMENTAL CHECKLIST - PAGE 11 Evaluation for Agency Use Only b. Is site currently served by the public transit? If not, what is the approximate distance to the nearest transit stop? No. c. How many parking spaces would the completed project have? How many would the project eliminate? None. d. Will the proposal require any new roads or streets, or improvements to existing roads or streets, not including driveways? If so, generally describe (indicate whether public or private). No. e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. No. f. How many vehicular trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. g. None. Proposed measures to reduce or control transportation impacts, if any: None. 15. Public Services a. Would the project result in an increased need for public services (for example: fire protection, police protection, health care, schools, other)? If so, generally describe. No. b. Proposed measures to reduce or control direct impacts on public services, if any. None. 16. Utilities a. Circle utilities currently available at the site: electricity, natural gas, water, refuse service, telephone, sanitary sewer, septic system, other. N/A ENVIRONMENTAL CHECKLIST - PAGE 12 Evaluation for Agency Use Only b. Describe the utilities that are proposed for the project, the utility providing the service, and the general construction activities on the site or in the immediate vicinity which might be needed. None. C. SIGNATURE The above answers are true and complete to the best of my knowledge. 1 understand that the lead agency is relying on them to make its decision. /+ Signature: G k t 6?- Am /f/. /iatnS Date Submitted: 8-1-901 Please continue to the next page. Evaluation for Agency Use Only ENVIRONMENTAL CHECKLIST - TO BE COMPLETED BY APPUCANT Evaluation for Agency Use Only D. SUPPLEMENTAL SHEET FOR NON - PROJECT ACTIONS (Do not use this sheet for project actions) Because these questions are very general, it may be helpful to read them in conjunction with the list of the elements of the environment. When answering these questions, be aware of the extent the proposal, or the types of activities likely to result from the proposal, would affect the item at a greater intensity or at a faster rate than if the proposal were not implemented. Respond briefly and in general terms. 1. How would the proposal be likely to increase discharge to water; emissions to air; production, storage, or release of toxic or hazardous substances; or production of noise? Construction may result in an increase to all of these concerns, except production and storage which will not occur. The completed project will not affect the existing conditions. Proposed measures to avoid or reduce such increases are: During construction, the contractor will use all available means to minimize the impacts associated with the project (see 8.2.c, B.3.d and B.7.b.3). 2. How would the proposal be likely to affect plants, animals, fish, or marine life? During construction, there may be a negative impact on plants, animals and fish, but once complete, the project should enhance fish habitats while plants and animals will quickly return to the existing conditions. Proposed measures to protect or conserve plants, animals, fish, or marine life are: All vegetation removed will be replaced immediately after construction with native plants. The temporary elimination of plants will be kept to a minimum. 3. How would the proposal be likely to deplete energy or natural resources are: N/A Proposed measures to protect or conserve energy and natural resources are: None. ENVIRONMENTAL CHECKLIST - PAGE 14 TO BE COMPLETED BY APPLICANT 4. How would the proposal be likely to use or affect environmentally sensitive areas or areas designated (or eligible or under study) for governmental protection; such as parks, wilderness, wild and scenic rivers, threatened or endangered species habitat, historic or cultural sites, wetlands, floodplains, or prime farmlands? The project will restore the riverbank to its pre- failure state to preserve existing landscaping and fish migration. Proposed measures to protect such resources or to avoid or reduce impacts are: Design and construction will be in compliance with all rules and regulations of the Washington Department of Fisheries, Army Corps of Engineers and the City of Tukwila. 5. How would the proposal be likely to affect land and shoreline use, including whether it would allow or encourage land or shoreline uses incompatible with existing plans? By stabilizing the bank, the Tukwila Trail can be built on top of the bank as part of another related project proposed by the City —The Tukwila Trail Expansion. Proposed measures to avoid or reduce shoreline and land use impacts are: The stabilization of the bank will eliminate any more bank erosion at this location. How does the proposal conform to the Tukwila Shoreline Master Plan? This proposal does not conflict with the Tukwila Shoreline Master Plan. 6. How would the proposal be likely to increase demands on transportation or public services and utilities? During construction, two or three additional vehicles may use Southercenter Boulevard, but once the project is complete, no increases in transportation, public services or utility demands will occur. Proposed measures to reduce or respond to such demand(s) are: None. 7. Identify, if possible, whether the proposal may conflict with local, state, or federal laws or requirements for the protection of the environment. None. ENVIRONMENTAL CHECKLIST - PAGE 15 Evaluation for Agency Use Only TO BE COMPLETED BY APPLICANT • Evaluation for Agency Use Only 8. Does the proposal conflict with policies of the Tukwila Comprehensive Land Use Policy Plan? If so, what policies of the Plan? No. Proposed measures to avoid or reduce the conflict(s) are: N/A E. SUPPLEMENTAL SHEET FOR ALL PROJECT AND NONPROJECT PROPOSALS The objectives and the alternative means of reaching the objectives for a proposal will be helpful in reviewing the foregoing items of the Environmental Checklist. This information provides a general overall perspective of the proposed action in the context of the environmental information provided and the submitted plans, documents, supportive information, studies, etc. 1. What are the objective(s) of the proposal? To stop the ongoing erosion of the bank into the river and to construct a stable riverbank at this location. 2. What are the alternative means of accomplishing these objectives? Alternatives include the placement of gabion walls and /or permanent geogrids to stop the erosion. 3. Please compare the alternative means and indicate the preferred course of action? Both gabion walls and geogrids are more costly and neither one will support the growth of vegetation. By placing additional fill with quarry spalls and riprap in the sloughed area, vegetation can be planted that will not only help in preventing more erosion, but also provide a more natural appearance to the bank. 4. Does the proposal conflict with policies of the Tukwila Comprehensive Land Use Policy Plan? If so, what policies of the plan? No. Proposed measures to avoid or reduce the conflict(s) are: N/A ENVIRONMENTAL CHECKLIST - PAGE 16 RIVER BANK STABILIZATION PROJECT PROJECT NO. MAYOR JOHN W. RANTS DIRECTOR OF PUBLIC WORKS ROSS A. EARNST, P.E. CITY ENGINEER RON CAMERON, PE LIST OF DRAWINGS 1 TITLE SHEET 2 PLAN SHEET 3 SECTIONS AND DETAILS PUBLIC . WORKS DEPT. •OIGIIQIIGN6•l111R!!•WWWW WIIDaw• CITY COUNCIL STEVE MULLET, PRESIDENT DENNIS ROBERTSON JOAN HERNANDEZ JOYCE CRAFT ALLAN EKBERG JOE DUFFIE DOROTHY DERODAS Ilk - Farr dor QI/>iP� I bLLkn 1111114.S WO 1.00 VICINITY MAP RIVER BANK STABIUZATION VERTICAL DATUM MOS WOO M 001 MAC 3 III1 NOK 0.510 AND SV Krc.at 42,1( 50451125 Cr . OM1CI5 51000PT Pat '44OP5 5UST*R 5015 OAU 2. 55 -III. SSC 101 AMC 5Y 0M.9 PEP 1W11M O, M 545* !UMW POE SIPCO. 5[ Mt1•.M WM) .rC SOu5. AMA.. 04[5 S SO -OP C.X.101NOS �� A d Y4 4 owl/ wANI ,tet'•, KO 1-40 MI .LY O 111112 MS ^#r.t S6 114.01 WO. ` • fr10 WVE1 . q04. Sn ./S. .woe.35.40 ECuaI C ,\!;\`\\ 1. �� \ \ Cy-,,, •\_. \ . 'N • LEGAL DESCRIPTION' arte.i�avana"Amok putIW .4•+0-7-s. S AMMEEI lsfio..210 a ..s5T. 012.36.0 . 1103333 NOTES 15 1..00_ TC IOG501 7 IRE .t0 ICM Rom .NNt ARCA YS 2CV.21OI 101 MOM C IAAOCK5 YUrOC- tOIT *001Cr TRm P MA1R0 UI 00 Pme. !C1 Cr cm .w. 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