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HomeMy WebLinkAboutSEPA EPIC-02-90 - CITY OF TUKWILA / PUBLIC WORKS - HIGHWAY 181 / SOUTH 180TH STREET WIDENINGSR 181 / S. 180TH ROADWAY IMPROVEMENTS & WIDEN EPIC -2 -90 13///f.0 /%ice I *5i11G Gti '4) ,i%de/7 01i / /iie ,x,. el,av q lZ Cn,-&6 '7 Sim 4 • AFF410OAVIT OF OISTRdUTION 1, DIANN MARTINEZ hereby declare that: C1 Notice of Public Hearing (] Notice of Public Meeting El Board of Adjustment Agenda Packet (] Board of Appeals Agenda Packet J Planning Commission Agenda Packet C7 Short Subdivision Agenda Packet Q Oetermination of Nonsignificance Mitigated Determination of Non - significance Q Determination of Significance and Scoping Notice O Notice of Action O Official Notice 0 Notice of Application for 0 Other Shoreline Management Permit Shoreline Management Permit 0 Other was mailed to each of the following addresses on MARCH 1, 1990 , 19 KENT PLANNING DEPT 220 S. 4TH KENT, WA. 98032 FAXED TO VALLEY DAILY NEWS Name of Project WIDEN AND IMPROVF SR 1Rl Fite Number EPIC 2 -90 Cot ®f Tukwila PLANNING DEPARTMENT 6200 Southcenter Boulevard Tukwila, Washington 98188 (206) 433-1849 DATE /TIME: FAX TRANSMISSION MARCH 1, 1990 3:3OPM. T0: VALLEY DAILY NEWS (Name) (Company Name) (FAX #) FROM: JOANNE JOHNSON PHONE NO: 433 -1849 SUBJECT- ATTACHED PUBLIC NOTICE PAGE(s): 1 (+ Cover Sheet) COMMENTS: FAX #: 433 -1833 PLEASE PUBLISH IN THE SUNDAY MARCH 4, 1990 EDITION OF THE VALLEY DAILY NEWS. WAC 197 -11 -970 DETERMINATION OF NONSIGNIFICANCE Description of Proposal WIDEN AND IMPROVE SR 181 ( WEST VALLEY HIGHWAY) AT S. 180TH. Proponent TUKWILA- DEPARTMENT FO PUBLIC WORKS Location of Proposal, including street address, if any S. 180TH AND W. VALLEY HIGHWAY. Lead Agency: City of Tukwila File No. EPIC -2 -90 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. 0 There is no comment period for this DNS This DNS is issued under 197 -11- 340(2). Comments must be submitted by proposal for 15 days from the date below lead agency will not act on this Responsible Official Rick Beeler Position /Title Plalnninq Director Address , 6200 Southcenter Boulevard, T Dat f�,.__'o Pia Signature Phone 433 -1846 You may appeal this determination to the City Clerk at City Hall, 6200 Southcenter Boulevard, Tukwila, WA 98188 no later than 10 days from the above date by written appeal stating the basis of the appeal for specific factual objections. You may be required to bear some of the expenses for an appeal. Copies of the procedures for SEPA appeals are available with the City Clerk and Planning Department. FM.DNS • 444 • - W- -11(1911-e-LoJe 01 - 2- tve), &A- 67,1,0 T", v N 4 ket.J tee 'wk. n zx t/m&o, °"/&1-14 e S- .„,t4 Tj iery.44,t --? kcs (firr"LIA-- 1-1-ft-t$" t- 0,31A) t/ L)1 r.C4 V A-4114.1- OnA0 CA,notsiktiti47-'11 - 160 4 G-ew J-4s3 ka-; \-1).111-1TP LL e4-, fikte(-4-. tfri fr,.e ? att,a rpje vrk j-ti.e. V CO fili-44-o' AFFIDAVIT • OF DIST.RIo UTION • • I. DIANN MARTINEZ hereby-declare that: Q Notice of Public Hearing Q Notice of Public Meeting Q Board of Adjustment Agenda Packet O Board of Appeals Agenda Packet Q Planning Commission Agenda Packet Q Short Subdivision Agenda Packet Q Determination of Nonsignificance Q Mitigated Determination of Non - significance Q Determination of Significance and Scoping Notice Q Notice of Action Q Official Notice Notice of Application for (] Other Shoreline Management Permit Q Shoreline Management Permit Q Other was mailed to each of the following addresses on SEE ATTACHED Name of Project SR -181 & S. 180TH ROADWAY IMPROVEMENTS File Number an_1_SMP FEBRUARY 28, , 1990. NOTICE OF APPLICATION FOR SHORELINAGEMENT SUBSTANTIAL DEVELOPh PERMIT 90 - 1 - SMP Notice is hereby given that THE TUKWILA PUBLIC WORKS DEPARTMENT, (state full name) who is the 0 NFR (relationship to property, such as owner, purchaser, lessee, etc.) of the below- described property has filed an application for a substantial development permit for the development of BOADWAY �MpR�0\►FMFNTS 1.NCLUDIN$ WIDFNING THE FXSTTN. (describe development, including uses) INTERSECTION AND BRIDGE FROM 5 LANES TO 6 LANES. located at VICINITY OF SR -181 (W. VALLEY HIGHWAY) AND 180TH (street address) within the N.E. of Section 35 (quarter section) of Township 23 N., Range 4 W.M., in Tukwila, King County, Washington. Said development is proposed to be within 200' of the Green River and /or its associated wetlands. Any person desiring to express his views or to be notified of the action taken on this application should notify REBECCA FOX, ASSOCIATE PLANNER (name, title of local government official) Planning Department, City of Tukwila, 6200 Southcenter Boulevard, Tukwila, WA 98188, in writing of his interest within thirty days of the final date of publication of this notice which is MARCH 9, 1990 (date) Written comments must be received by MARCH 8, 1990 (date) Published in: Valley Daily News - MARCJ-I 2, 1990 AND MARCH q 1990 (publication �date(s)) Distribution: City Clerk, Mayor, Adjacent Property Owners, Department of Ecology, Property Owner, File (23 /P2.SHORNTC) LR 11/24/87 WAC 197 -11 -970 DETERMINATION OF NONSIGNIFICANCE Description of Proposal WIDEN AND IMPROVE SR 181 ( WEST VALLEY HIGHWAY) AT S. 180TH. Proponent TUKWILA- DEPARTMENT FO PUBLIC WORKS Location of Proposal, including street address, if any S. 180TH AND W. VALLEY HIGHWAY. Lead Agency: City of Tukwila File No. EPIC -2 -90 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. (] There is no comment period for this DNS (D This DNS is issued under 197 -11- 340(2). Comments must be submitted by . The lead agency will not act on this proposal for 15 days from the date below. Responsible Official Rick Beeler Position /Title Address Dat Plalnning Director 6200 Southcenter Boulevard, r:o Signature Phone 433 -1846 You may appeal this determination to the City Clerk at City Hall, 6200 Southcenter Boulevard, Tukwila, WA 98188 no later than 10 days from the above date by written appeal, stating the basis of the appeal for specific factual objections. You may be required to bear some of the expenses for an appeal. Copies of the procedures for SEPA appeals are available with the City Clerk and Planning Department. FM.DNS CITY OF TUKWILA DEPARTMENT OF COMMUNITY DEVELOPMENT ENVIRON -NTAL REVIEW ROU '1G FORM EPIC: TO: Building Planning Pub Wks 21 Fire Police Parks /Rec PROJECT et?/.4/7 (9f � & St. ADDRESS 6., Mgr, DATE TRANSMITTED /.22fre) STAFF COORDINATOR P� c-z) RESPONSE REQUESTED BY /362,1 DATE RESPONSE RECEIVED The attached environmental checklist was received regarding this project. Please review and comment below to advise the responsible official regarding the threshold determination. The environmental review file is available in the Planning Department through the above staff coordinator. Comments regarding the project you wish carried to the Planning Commission, Board of Adjustment and City Council should be submitted in the comment section below. ITEM COMMENT Cel)V//1e1 J 5 `�%.�l ©a-]y iQ�.�G ..4) lii',ee"Yl/71ta747' ����5 - Date: / -�;3 - � Comments prepared by: ENVIRONMENTAL CHECKLIST A. BACKGROUND Con. No. Epic File No. ,:,3- 90 Fee $100.00 Receipt No. 1. Name of proposed project, if applicable: SR- 181 /South 180th Street 2. Name of applicant: Tukwila - Department of Public Works 3. Address and phone number of applicant and contact person: 433 -0179 4. Date checklist prepared: December, 1989 5. Agency requesting Checklist: City of Tukwila 6. Proposed timing or schedule (including phasing, if applicable): Construction sctzeduled from Mav, 1990 to November, 1990. 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. No 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. Washington StaHydraulic D •• - - V- I- -_tl'1 eve -1 - U1 _ 9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. No CITY OF TUKWILA DEPARTMENT OF COMMUNITY DEVELOPMENT ENVIRON :NTAL REVIEW e')7°‘' ROU JG FORM PROJECT it4i.7 r S /82) EPIC: ADDRESS z5, /$e ..St DATE TRANSMITTED /2Z%d STAFF COORDINATOR p / C- `)/2 RESPONSE REQUESTED BY DATE RESPONSE RECEIVED The attached environmental checklist was received regarding this project. Please review and comment below to advise the responsible official regarding the threshold determination. The environmental review file is available in the Planning Department through the above staff coordinator. Comments regarding the project you wish carried to the Planning Commission, Board of Adjustment and City Council should be submitted in the comment section below. ITEM COMMENT Cle)? ,/ne as 5,' ' / et)-7#, /2iCkC& 0...v 41571✓11 /,ed)v.v 74 l✓Ifeei",ZiS . 7elipu (f 2PT L TLT j p T2-0 n o (,44-1 (p qv 4- s,p IL:RAUL c ,F Date: ( f a L( ( Z Comments prepared by 09114,99 • Cont1110No. Epic File No. a- 4,2Q Fee $100.00 Receipt No. ENVIRONMENTAL CHECKLIST A. BACKGROUND 1. Name of proposed project, if applicable: SR- 181 /South 180th Street 2. Name of applicant: Tukwila - Department of Public Works 3. Address and phone number of applicant and contact person: 433-0179 4. Date checklist prepared: December, 1989 5. Agency requesting Checklist: City of Tukwila 6. Proposed timing or schedule (including phasing, if applicable): Construction scheduled from May. 1990 to November, 1990. 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. No 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. Washington State Hydraulic Project Approval. Shoreline Management Substantial Development Permit. 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. No CITY OF TUKWILA rltekv ENVIRON NTAL REVIEW ROU SIG FORM DEPARTMENT OF COMMUNITY DEVELOPMENT EPIC: TO: Building Planning Pub Wks PROJECT k 1 a(' s 4 &SZ - ADDRESS DATE TRANSMITTED /...22/fd Fire Police Parks /Rec RESPONSE REQUESTED BY /..7,;44 STAFF COORDINATOR P/ eC-7111 /6)/Z,_-)"/ DATE RESPONSE RECEIVED The attached environmental checklist was received regarding this project. Please review and comment below to advise the responsible official regarding the threshold determination. The environmental review file is available in the Planning Department through the above staff coordinator. Comments regarding the project you wish carried to the Planning Commission, Board of Adjustment and City Council should be submitted in the comment section below. ITEM COMMENT Ca>12n1e -p-Jes et)-*- /c/ &c 2* ✓J/,ed)2/3;e0742 4 Date: 100 Comments prepared by: , 09/14/89 • A. BACKGROUND ENVIRONMENTAL CHECKLIST Con. No. Epic File No. 9 o Fee $100.00 Receipt No. 1. Name of proposed project, if applicable: SR- 181 /South 180th Street 2. Name of applicant: Tukwila - Department of Public Works 3. Address and phone number of applicant and contact person: 433 -0179 4. Date checklist prepared: December,_ 1989 5. Agency requesting Checklist: City of Tukwila 6. Proposed timing or schedule (including phasing, if applicable): Construction scheduled from May. 1990 to November, 1990. 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. No 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. Washington StaHydraulic Project Approval. Shoreline Management Substantial Development Permit. 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. No Conte No. Epic File No. 2-9 Fee $100.00 Rec e i p-t. N o .. ENVIRONMENTAL CHECKLIST A. BACKGROUND J1 i 19 1990 1. Name of proposed project, if applicable: SR- 181 /South 180th,- Street; 2. Name of applicant: Tukwila - Department of Public Works 3. Address and phone number of applicant and contact person: 433 -0179 4. Date checklist prepared: December, 1989 5. Agency requesting Checklist: City of Tukwila 6. Proposed timing or schedule (including phasing, if applicable): Construction scheduled from May, 1990 to November, 1990. 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. No 8. List any environmental information you know about that has been prepared, or will . be prepared, directly related to this proposal. Washington State Hydraulic Prajact Approval. Shoreline Management Substantial Development Permit. 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. No 10. List any government approvals or permits'that will be needed for your proposal. WSDOE - Hydraulic Project Approval WSDNR - Public Lands Crossing Easement Shoreline Management Substantial Development Permit SEPA Checklist City of Tukwila - Design Review (see page 4 -5 of Supplemental Information) 11. Give 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 project consists fo wideninc the existing intersection of South 180th St. and SR -181 to provide additional left turn. capacity on SR- SU-and additioniI rfgnt turn capacity on South 180th St. The improvement will incluae— he widening 5F-Elie existing bridge, on South 180th Street, over the Green River: None of the roadway widening will be towards the river. (see page 2 -3 and 5 of Supplemental Information) 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 applica- tions related to this checklist. City of Tukwila - Intersection of sign route on 181 (West Valley Highway) and South 180th Street. Section 36 T.23 N R.4E W.M. see page-b; Figure 1 of Supplemental Information) 13. Does the proposal lie within an area designated on the City's Comprehensive Land Use Policy Plan Map as environmentally sensitive? Yes ID BE COMPLETED BY APPLINT ENVIRONMENTAL ELEMENTS Earth Evaluation for :Agency Use ' a. General description of the site (circle one):( Flat ) rolling, hilly, steep slopes, mountainous, other b. What is the steepest slope on the site (approximate percent slope)? 0.5 % 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. Silt, sand and gravel d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. No e. Describe the purpose, type, and approximate quanti- ties of any filling or grading propgsed. Indicate source of fill. Street widening will require minor removal of xicting soils and the impnrta ion_of embankment and snrfac ng ma eri a 1 c from nnmmercial sources. Less than 1000 cubic yards of material will be imported for the street widening. f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. Grading for street widening will expose soils which will be susceptible to erosion due to rainfall. g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? The street widening will add approximately 25,000 square feet of impervious surface to the existing street system. Evaluation for Agency Use Only.'' += h. Proposed measures to reduce or control erosion, or impacts to the earth, if any: snit Prnsinn will be :. controlled by the application of temporary measures..;;:.,�'= == including but not limited to the following: Silt fencing, straw and / . gravel berms in drainage courses, the placing of filter material` on drainage structure inlets and the expeditious application`of restoration measures. (see page 4 of Supplemental .Report, and Inset- A;B.3.d. ) 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. Construction activities may temporarily increase dust and equipment exhaust levels. following project completion, air quality may be affected by the increase —.37H—roadway capacity at the subject intersection. b. Are there any off -site sources of emissions or odor that may affect your proposal? If so, generally describe. No c. Proposed measures to reduce or control emissions or other impacts to air, if any: Grading operations which produce airborne dust particles will be cooped by the application of water to the graded surfaces during dry construction periods. 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. The intersection to be improved is immPai a -Ply Pa41' nr them f-rAen Fi Ue = T= rnyPments to South 180th Street inc-1u the wideIIing of the present hridge over the Green River_ • • 2) 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. The prpi ect will include improvements 'on _ "'; _"- SR 181 (West Valley Highway) which lies east 'arid adjacent to the Green River as well as improvements to 'the'.existim4- bridge on South 180th Street. (see page 3 and , - 5 of Supplemental Report) 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. No material will be removed from or placed in the Green River. Evaluation for Agency Use Only 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quan- tities, if known. The proposal will not require surface water withdrawals or diversion. (CPp Insert B, B.5.d.) 5) Does the proposal lie within a 100 -year floodplain? If so, note location on the site plan.' No 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 discharge nr wade materials to gurfaee waters is involvAd in t-hia project. However, accidental spills of petrn1 P,m, prndnci -' or chemicals is possible during ...construction. 1) Will ground water be wi discharged to ground description, purpose, tities, if known. No, • Evaluation for Agency Use Only thdrawn, or will water be water? Give general.. and approximate quan- see Insert A- B.3.d) 2) Describe waste materials that will be discharged into the ground from septic tanks or other sour- ces, 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. No waste materials will be discharged into the groundwater as a result of the roadway construction. c. Water Runoff (including storm water) : 1) Describe the source of runoff (including storm water) 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. Rainfall is the most probable source of water runoff. Roadway runoff will be directed to the edges of paved surfaces and collected oF-6ire- d by curbs to existing or additional drainage s ructures.. The accumulation of runoff will be directed -To exi.sD ng drainage facilities which discharge in o the Green River. (see page 4 of Supplemental Report and Insert A- B.3.d.) • • Evaluation for Agency Use Only 2) Could waste materials enter ground or surface waters? If so,_generally describe. Waste materials . from the roadway, such as fuels and oils, may enter the groundwater and /or surface waters. The proposed roadway improvements are expected to have minimal impact on the quantity of these type of pollutaiits. d. Proposed measures to reduce or control surface, ground, and runoff water impacts, if any: (See Inset A) 4. Plants a. Check or circle types of vegetation found on the site: X deciduous tree: alder, maple, aspen, other evergreen tree: fir, cedar, pine, other X shrubs X 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? None • c. List threatened or endangered species known to be on or near the site. None are expected on the basis of habitat types observed. • 110 Evaluation for;;:f :�� ._`: °:� Agency Use Only`;. d. Proposed landscaping, use of native plants, or other; measures to preserve or enhance vegeltatihoen on the ' �: '':` ` " '` site, i f an • Exposed surfaces �::::;� ,.:r...�_.:,:..... .= h • • - - . - . ... • .4 ' .. . - . . ' meted will be''restored : .� Nil Fh cp-ASSeS . nrname 1 pl nt d/or native .. ` - vegetation _ (see Insert A-B.3.d.) 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: mammals: deer, bear, elk, beaver, other: fish: bass,( - salmon, trout,)_herring, shellfish, • other: b. List any threatened or endangered species known to be on or near the site. Do not know c. Is the site part of a migration route? If so, explain. The Green River is a migration route for salmon and trout. d. Proposed measures to preserve or enhance wildlife, if any: (See Insert Et) • • 6. Energy and Natural Resources a. What kinds of energy (electric, natural gas, wood stove, color) will be used to meet the : ^. ... ;�:= �..�:.';;: completed project' s energy needs? Describe whether):�,:� it will be used for heating, manufacturing, etc.' °'; ".:':: Fossil fuels for construction activities and the transfer of materia energy_fbt the manufacturing of necessary materials. EIectrical energy may be required for a�ciitionar ]i ting and traffic signals. b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. Does not apply 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: Reduce traffic congestion and delays and fuel. consumption. (See page 2 of Supplemental Report) 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. Tj -erent risk of spillage or accidents OuP to traffic and construction activities. (SPP section B.3.a) 1) Describe special emergency services that might be required. Does not apply 2) Proposed measures to reduce or control environ- mental health hazards, if any: No mitigating measures are anticipated. • • b. Noise 1) What types of noise exist in the area which may. affect your project (for example: traffic, equipment, operation, other)? Does not a_Ep1y 2) What types and levels of noise would be created by or associated with the project on a short - term or a long -term basis (for example: traf- fic, construction, operation, other)? Indicate what hours noise would come from the site. (See Insert C) 3) Proposed measures to reduce or control noise impacts, if any: (See Insert D) 8. Land and Shoreline Use a. What is the current use of the site and adjacent properties? Automobile and truck traffic on the West Valley a1ghway (sat ]MM) and South 180th Street. The Green-niter is along the west side of SR 181. Adjacent properties are developed for wholesale/ retail and light industrial purposes. (see page 1 of Supplemental Report — b. Has the site been used for agriculture? If so, describe. Does not apply c. Describe any structures on the site. Concrete bridge with abutments and subsurface pilings. d. Will any structures be demolished? If so, what?. None Evaluation for Agency Use Only e. What is the current zoning classification of the site? Ml — Light Industrial f. What is the current comprehensive plan designation of the site? Light Industrial g. If applicable, what is the current shoreline mAster program designation of the site? The Green River in Tukwila is designated as an urban enviranment. h. Has any part of the site been classified as an "environmentally sensitiye" area? If so sspecify. The adjacent Green River has been cla si ied ac an environmental sensitive - ea i. Approximately how many people would reside or work in the completed project? Does not apply j. Approximately how many people would the completed project displace? None k. Proposed measures to avoid or reduce displacement impacts, if any: noes not apply 1. Proposed measures to ensure the proposal is com- patible with existing and projected land uses and plans, if any: Does not apply 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 eli- minated? Indicate whether high, middle, or low - income housing. None c. Proposed measures to reduce or control housing impacts, if any: Does not app y 10. Aesthetics a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building material(s) proposed? DQe§ not apply b. What views in the immediate vicinity would be altered or obstructed? None c. Proposed measures to reduce or control aesthetic impacts, if any: Does not apply • 11. Light and Glare • Evaluation for Agency Use Only a. What type of light or glare will the proposal. produce? What time of day would it mainly occur? Additional illumination will be installed on the project. (see page 4 of Supplemental Information). 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 light or glare may affect your proposal? None d. Proposed measures to reduce or control light and glare impacts, if any: No mitigating measures will be necessary 12. Recreation a. What designed and informal recreational oppor- tunities are in _the immediate vicinity? cirri teri do Trait adjacent to the Green River and the West Valley Highway. (see page 1 of Supplemental Tnformadon) 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: Does not apply • • 13. Historic and Cultural Preservation a. Are there any places or objects listed on, or pro -. posed for, national, state, or local preservation registers known to be on or next to the site? If so, generally describe. Do not know • � b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site. Interurban . Avenue (West Valley Highway - Sr: 181) was the first road to linK Tacoma ana Seattle. c. Proposed measures to reduce or control impacts, if any: None 14. Transportation a. Identify. public streets and highways serving the site, and describe proposed accss to the existing street system. Show on site plans, if any. The site js served by South 18Cth Street, a city street and SP 181 (West Valley Highway), a state highway. .Fccess to existing streets will not be changed. (see page 6. figure 1 of Supplemental Report) b. Is the site currently served by public transit? If not, what is the approximate distance to the nearest transit stop? Yes c. How many parking spaces would the completed project have? How many would the project eliminate? Does not apply d. Will the proposffirequire any new roads or streets, or improvements to existing roads or streets, not including driveways? If so, generally describe (indicate whether public or private). See 14 —a Evaluation for Agency Use Onl • 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. ropq nnt_ apply g. Proposed measures to reduce or control transpor- tation impacts, if any: The project pvoposes to reduce delays at the existing channelized and signalized intersection by increasing left and right turn capacity. (see 2 of Supplemental Report, and 6 -C ads is checklist ge 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. DOES NCT APPLY 16. Utilities a. • Circle utilities currently available electricity, .natural as, water; -r . telepnone, Sant ary.sewer, septic sy prm sewer system, television can • 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.. Minor adjustments to existing serving utility equipment and face. iti.es may be necesba.L,r C. Signature The above answers are true and complete to the best of my knowledge. I understand that the lead agency is relying on them to make its decision. Signature: Date Submitted: /— /r--70 PLEASE CONTINUE TO THE NEXT PAGE. TO BE COMPLETED BY APPLICANT • D. SUPPLEMENTAL SHEET FOR NONPROJECT ACTIONS Evaluation for` Agency Use Onl (do not use .�.:.:: = ._:; ( se this sheet for project actions) :'_`'''`�" Because these questions are very general, it m �_�.,..�: 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 imple- mented. 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? Proposed measures to avoid or reduce such increases are: 2. How would the proposal be likely to affect plants, ani- mals, fish, or marine life? Proposed measures to protect or conserve plants, ani- mals, fish, or marine life are: • • Evaluation for Agency Use Only 3. How would the proposal be likely to deplete energy or natural resources? Proposed measures to protect or conserve energy and natural resourses are: 4. Now 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, threat =ned or endangered species habitat, historic or cultur,1 sites, wetlands, floodplains, or prime farmlands? Proposed measures to protect such resources or to avoid or reduce impacts are: 5. How would the proposal be likely to affect land and shoreline use, inclduing whether it would allow or encourage land or shoreline uses incompatible with existing plans? . • . Evaluation for Agency Use Only ;_: • Proposed measures to avoid or reduce shoreline and land= +� - -` use impacts area: <; • ; How does the proposal conform to the Tukwila Shoreline Master Plan? 6. How would the proposal be likely to increase demands on transportation or public services and utilities? Proposed measures to reduce or respond to such demand(s) are: 7. Identify, if possible, whether the proposal may conflict with local, state, or federal laws or requirements for the protection of the environment. • Proposed measures to avoid or reduce the conflict(s) are: Evaluation for ..Agency Use Only TO BE COMPLETED BY APPLICANT E. SUPPLEMENTAL SHEET FOR ALL PROJECT AND NON PROJECT PROPOSALS The objectives and the alternative means of reaching the objectives for a proposal will be helpful in reviewing the aforegoing its of the Environmental Checklist. This information provides a general overall perspective of the proposed action in the context of the environmental infor- mation provided and the submitted plans, documents, suppor- tive information, studies, etc. 1. What are the objective(s) of the proposal? To reduce traffic delay, reduce accidents, increase vehicle capacity, and improve the overall operation of the SR181 /South 180th Street intersection. (see page 2 of Supplemental Report) Evaluation for' :, Agency Use Only` 2. What are the alternative means of accomplishing these objectives? For other short -term improvements, each leg of the intersection can be improved separately. Four long -term improvements have been identified: 1) SR 181 separate grade overcrossing 5. 18Cth St. 2) S. 18Cth Street over SF 181 3) Realigned full diamond interchange 4) Same as 1) with exception of prohibited eastbound to northbound lett turns. 3. Please compare the alternative means and indicate the preferred course of action: T.nng —term solutions are I1rreni- 1 y cost prohibit i vP (SR f-n $75 Mi 11 ion) Short -term solutions are rnrrently cost feasible ($60 to $514 thousand per interaertion leg) 4. Does the proposal conflict with policies of ;the 'Tukwi l a - Comprehensive _Land Use Policy Plan? ._fl:If so; what pot 1_ =' _ c i es of the Plan? Na �:._ =" Proposed measures to avoid or reduce the conflict(s) are: Does not apply -23- Evaluation for Agency Use Only INSERT A B.3.d The implementation of sound construction methods will reduce erosion and therefore potential water quality degredation. These methods include: - maintain vegetation cover whenever possible - use sedimentation control structures - schedule grading and paving to low flow periods - care in the storage and use of chemicals and petroleum products during construction. - stockpile excavated materials away from sensitive areas - expedite hydroseeding of exposed soils The purpose of these features is to protect and control the quality of surface runoff before it enters existing drainage courses. If necessary, structural control would consist of sediment barriers such as silt fencing, gravel berms and hay bales. Structural controls along with vegetation controls would provide measures to retain silt before it enters existing waterways. Frequent inspection and continuous maintenance of the structural controls are necessary for effective sediment control.. These proposed erosion control measures should be more than adequate to reduce or control surface, ground and runoff water impacts. - INSERT B B. 5.d Suspended sediment and turbidity is a temporary water quality impact that could be harmful to fishery resources. Curtailment reduction of these temporary construction impacts would involve measures specified in the Washington State Departments of Fisheries and Wildlife Hydraulic projects Approval (HPA). Examples of potential curtailment measures include restriction of equipment operation in the river channel, stockpiling of any gravels for replacement after construction is completed, main- taining the existing river gradient, and avoiding disruption of vegetative cover on the river bank. Stock- piled materials should be covered to prevent erosion and subsequent sedimentation. The HPA includes timing provisions that probably would restrict in- channel work to the low -flow periods during mid - summer. Further protection against erosion would be provided by bank protection and stabilization. • B 7.b.2 INSERT C Construction activities would result in temporary increases in noise levels in the vicinity of the construction site. Machinery and trucks used for earthmoving, paving and hauling materials would be the major noise contributors. Noise levels typically produced from equipment used during construction, range from 75 to 90 decibels at 50 feet. Construction of the widened roadway and bridge is expected to take approximately six months. Noise impacts resulting from construction are not expected to be significant. Construction activities are allowed between 7:00 A.M. and 10:00 P.M. INSERT D B7.b.3 The Tu: :wila Noise Ordinance, (Tukwila, 1985) estblishes stringent noise limits on construction in residential areas during nighttime hours of 10:00 P.M. to 7:00 A.M. on weekdays and weekends. These limits effectively preclude constuction during nighttime hours. Construction noise limits in the Ordinance would regulate the use of any unusually noisy equipment. • • SUPPLEMENTAL INFORMATION CATEGORY 1 ROADWAY WIDENING • • EXISTING CONDITIQNS ROADWAYS State Route 181 (West Valley Highway) Classification: Principal Arterial - Special Multi -Lane The existing facility provides a four -lane roadway section with left turn channelization at selected intersections, two -way left turn lanes are present along selected section of the immediate area traversed b the route is dominated by commercial and industrial development in the City of Tukwila and Kent. The rernamder of the route, within the project limits, is undeveloped lands which fall in the path of future commercial expansion. South 1R(lth Street Minnr Classification: Arterial South 180th Street is an urban arterial which serves as a major east /west arterial from Sr 515 to the Sea -Tac vicinity. South 180th Street provides one of the two crossings of the Green River south of Interstate 405 and north of South 212th Street. CHANNELIZATION SR 181_ (West Valley Highway) The existing facility presents four 10 foot through lanes with three foot shoulders. Twelve foot left turn lanes are provided at the South 1, 0th Street intersection as shown in Figures 2 and 3. The left turn lanes continues north, on Sr 181, as a two -way left turn lane. Shoulder treatment includes guard rail along the side adjacent to the Green River. A curb, gutter and sidewalk section is present on the east side of the north leg of the intersection. Metal bin retaining walls exist adjacent to the Green River to avoid impacting the river channel in several rotations. South 180th Street The present facility is a five -lane urban arterial with left turn channelization and two -way left turn lanes extending east and west of its intersection with SR 181. Edge treatment consists of cement concrete curbs, gutters and sidewalks. Existing pavement widths are 60 feet on the west leg as shown in Figures 4 and 6, and 56 feet on the east leg. PEDESTRIAN/BICYCLE CIRCULATION Existing pedestrian /bicycle facilities in the vicinity of the Sr 181 /South 180th Street intersection, include concrete sidewalks on both sides of South 180th Street from the west pavement seat of the South 180th Street bridge easterly. Existing concrete sidewalk is available on the east side of SR 181 north of the intersection. South leg of SR 181 has no existing sidewalk. -1- IMPROVEMENT JUSTIFICATION This intersection has been recognized as a severely congested area in need of improvement for many years. Vehicles travelling along the South 180th street corridor and at the SR 181 /South 180th Street intersection during peak periods of a typical weekday, experience excessive delays. During noon and PM peak period, the signal cycle lengths at the SR 181 /South 180th Street intersection become very long, causing poor vehicle progression through the corridor and excessive significant vehicle queues to form. These queue lengths extend far enough on all approaches to cause vehicle delays throughout the South 180th Street corridor and on north and southbound SR 181 in the intersection vicinity. In order to identify the type of improvements needed to increase vehicle progression and reduce vehicle delays during the noon and PM peak periods, a study was prepared by INCA Engineers, Inc. in April of 1989. The results of the short-term and long -term improvement alternative analysis are summarized as part of this design report. 1989 LEVEL OF SERVICE Based on peak hour turning movement counts collected by Traf lcount, for the City of Tukwila, in February 1989 during both the noon and PM peak periods, a level of service (LOS) analysis was conducted at the intersection of SR 181 /South 180th Street, following calculation procedures outlined in the 1985 Highway Capacity Manual. Both the noon (11:30 a.m. -12:30 p.m.) and PM peak (4:15 -5:15 p.m.) hours were examined to determine existing level of service and potential intersection capacity of various improvement alternatives. An operational analysis was conducted at the intersection. Currently, the intersection of SR 181 /South 180th Street operates at LOS E (57 seconds of delay per vehicle) and LOS F (64 seconds delay per vehicle) during the 1989 noon and PM peak hours, respectively, indicating jammed stop and go conditions. Implementation of the proposed improvements will si i cantly increase mobility, lessen accident potential and decreas delays. The propose I improvements would provide an additional 10 to 15 years of service over existing conditions. 2 PROPOSED IMPROVEMENTS The improvements recommended in this design are proposed for the intersection improvements of the SR 181 /South 180th Street intersection in Tukwila, Washington, as shown in Figure 1. Proposed improvements include: L Widening the south side of the west approach of South 180th Street to provide an additional through lane and sidewalk. L Widening both the north and south approaches of SR 181 to the east to provide dual northbound to westbound and southbound to eastbound protected left -turn lanes. L Widening the east approach of South 180th Street to provide an exclusive westbound to northbound right turn lane. L New traffic signal system and lighting improvements. L Signing, striping and channelization improvements. Proposed improvements are described in detail below: L SR 181 South Leg. An additional 18 feet of roadway will be added on the east side of the existing five - lane facility to provide an additional left-turn lane as shown in Figure 2. L SR 181 North Leg An additional 12.5 feet of roadway, including curb and gutter, will be added on the east side of the existing five -lane facility to provide an additional left turn lane as shown in Figure 3. L South 180th Street West Leg The existing urban street section will be widened an additional 18 feet to provide a right turn lane at the intersection with SR 181 as shown in Figure 4. The widening will include a six foot sidewalk on the south side. The addition of a six foot sidewalk on the north side is also provided. L South 180th Street East Leg Similar to the west leg of South 180th Street, the improvement includes widening the east leg 12.5 feet on the north side to provide a nght turn lane. In addition to the street widening a 6 foot sidewalk will be reconstructed adjacent to the curb as shown in Figure 6. 3 • • SIGNALIZATION In addition to the roadway widening a new traffic signal system will be installed at the SR 181 /South 180th Street intersection. Improvements include new signal poles, mast arms, vehicle and pedestrian signal heads emergency pre - emption sensors, and luminaires. This intersection will be interconnected with the existing signalized intersections Sperry Drive /South 180th Street and 72nd Street /South 180th Street. STORM DRAINAGE Storm drainage facilities for widening the SR 181 /South 180th Street intersection will consist of minor modifications to existing storm sewer systems in place on SR 181 and South 180th Street. Runoff will be diverted to existing catch basins by adding catch basins and inlets at selected locations. Runoff outfall is to enter Green River. To eliminate adverse effects to the water quality of the river during construction, bails of hay and silt fences will be installed to prevent erosion along the west side of the river bank. Oil and grease separators are to be installed in special catch basins to separate oil and grease from water. EARTH WORK Approximately 5,000 cubic yards of granule material from State approved sites will be used to construct roadway embankment. Clearing and grubbing work would generate approximately 500 cubic yards of extraneous materials which will be removed from the site and disposed of in accordance with construction requirements of the State and APWA specifications. 4 • • CATEGORY 2 BRIDGE WIDENING • EXISTING CONDITIONS The Oril lia Bridge (South 180th Street Bridge) over Green River is located along South 180th Street intersection on the west approach. The existin structure, constructed in 1968, was designed for HS20 Loading and is in good condition.e present roadway width is 60 feet. The superstructure consists of welded steel plate girders continuous over spans at 37 feet -115 feet -37 feet supporting a light weight concrete deck. Concrete abutments and wall piers are supported by treated timber piles. PR S P • ED IMPR • VEMENTS The South 180th Street Bridge will be widened an additional 20 feet to provide a right turn lane at the intersection with SR 181. The widening will include 8 foot sidewalks on both sides of the bridge, and a 12 foot wide right turn lane on the south side of the bridge. Currently, the bridge provides 2 to 4 foot sidewalks, See Figure 5. Existing concrete abutments, piers and treated timber piles will be extended to support three additional welded plate girders with composite concrete decks. The existing span le s and vertical clearances will be maintained. The widened portion will be designed for�HTO HS20 Liveload matching hat of the existing structure. The bridge deck will be flared at the east abutment to provide a turning radius of 55 feet and an 8 foot sidewalk as both corners. The proposed widening to the north side of the existing bridge will be limited to widening the easterly 40 feet of the structure. The abutment will be extended to support a welded steel plate girder which will attach to the existing exterior at the east pier. The roadway deck will be flared to provide a turning radius of 55 feet and an 8 foot sidewalk. Again, existing span lengths and vertical clearances will be maintained. 5 SEA I. TAC 1 N 'L AIF PORT %LakePanther VICINITY MAP CITY OF TUKWILA FIGURE 1 SR 181 / S. 180TH STREET IMPROVEMENTS R/W R/W VARIABLE 3'3' 10' 10' 6' L. VARIABLE R/W 6' 10' 10' 3' T.L. METAL BIN WALL EXISTING Q VARIABLE VARIABLE R/W 314 11 1I' 6' 6' 12' 11 11 4' 1" LE �III L LJ II L. TL L.T. L. PROPOSED TYPICAL ROADWAY SECTION SOUTH LEG SR 181 LOOKING NORTH L.T. L. = LEFT TURN LANE CITY OF TUKWILA FIGURE 2 SR 181 / S. 180TH STREET IMPROVEMENTS R/W ['s Q VARIABLE VARIABLE R/W R/W 10' 10' 6' 6' 13' 13' 17' L. TL EXISTING VARIABLE 4' 11' 5'S /W PROPOSED TYPICAL ROADWAY SECTION NORTH LEG SR 181 LOOKING NORTH CITY OF TUKWILA FIGURE 3 SR 181 / S. 180TH STREET IMPROVEMENTS R/W 36' 36' R/W 4' 12' 12' 6' 6' 12' 12' L. T. L. EXISTING 36' 36' 12' 6' 6' 12' 12' L. T.L. PROPOSED R/W PRIVATE PARKING TYPICAL ROADWAY SECTION SOUTH 180TH ST (WEST LEG) LOOKING EAST R.T. L. = RIGHT TURN LANE, L.T.L. = LEFT TURN LANE CITY OF TUKWILA SR 181 / S. 180TH STREET IMPROVEMENTS PRIVATE PARKING FIGURE 4 4' 12' q. 12' 6' 6' 12' 12' 4' L. T.L. EXISTING Q 10' 12' 12' 12' 8' T. L. PROPOSED 1 R.T. L. TYPICAL ROADWAY SECTION SOUTH 180TH ST (WEST LEG) GREEN RIVER BRIDGE CITY OF TUKWILA LOOKING EAST L.T.L. = LEFT TURN LANE FIGURE 5 SR 181 / S. 180TH STREET IMPROVEMENTS R/W 50' 50' 6' 6' 11' 11' 6' 6' 11' 11' R/W L. T.L R/W 50' EXISTING 6.' 12.5' R.T.L. 12.5' 11' 11' 6' 6' 11' L. T.L. PROPOSED 50' 6' TYPICAL ROADWAY SECTION SOUTH 180TH ST (EAST LEG) LOOKING EAST R.T. L = RIGHT TURN LANE, LT L. =, LEFT TURN LANE CITY OF TUKWILA R/W FIGURE 6 SR 181 / S. 180TH STREET IMPROVEMENTS