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HomeMy WebLinkAboutSEPA EPIC-20-82 - RW THORPE & ASSOCIATES - TUKWILA HOTELTUKWILA HOTEL DAIS PRELIMINARY FINAL FINAL EIS JOHN SPELLMAN Governor STATE OF WASHINGTON DEPARTMENT OF TRANSPORTATION Office of District Administrator • D-1, 6431 Corson Ave. So., C -81410 • Seattle, Washington 98108 Brad Collins, Director Planning Department City Hall. 6200 Southcenter Boulevard Tukwila, Washington 98188 Dear Mr. Collins: . February 18, 1983 DUANE BERENTSON Secretary NNMEND FEB 2 5 1983 CITY OF TUKWILA PLANNING DEPT. SR 181 Final Environmental Impact Statement Review Tukwila Hotel (File K -434) We have reviewed the Final Environmental Impact Statement (FEIS) for Tukwila Hotel and disagree with their responses to our comments of July 23, 1982. Neither the Draft Environmental Impact Statement .(DEIS),or FEIS presented a detailed traffic analysis of the SR 181 /South 158th Street intersection. We believe that based on the available data, the projected traffic volumes are sufficient to warrant a signal. There presently is a congestion problem on SR 181 during peak hours. This problem is severe at the South 158th Street intersection during the six months a year when Longacres is in operation. The response comment regarding the Washington State Department of Transportation's policy of not issuing a signal permit when only Warrant 2 is met is untrue. The Washington State Department of Transportation's policy is to issue a signal permit, with construction contingent upon funding, if any one of the signal warrants can be met. The traffic data used for the warrant analysis can be and has been either projected or actual traffic volumes. We are currently using remedial measures at this intersection. Washington State Patrol Officers manually control traffic at this intersection during the peak traffic times when Longacres is in operation. Thus, their statement about trying remeidal measures is already being done in one form. Brad Collins, Director February 10, 1983 Page 2 This intersection currently has congestion problems for six months a year. If this intersection is expanded from a tee intersection to a four legged intersection, the number of conflict points is greatly increased. Due to this and the increased traffic generated by the hotel, delay, congestion and accidents will increase. These adverse impacts of expanding the intersection without installation of a signal and widening of SR 181 (double southbound to eastbound left and southbound to westbound right -turn lanes) would lead us to recommend not allowing left access into and out of the proposed facility. Two right -in, right -out access points would not adversely effect traffic through the area and appears to be the only option open to us if the traffic impacts are not adequately mitigated. We would be most willing to meet with you and the developer to resolve our mutual transportation and access concerns. Thank you. Very truly yours, G.L. GILBERT, P.E. District Design Engineer PRL:jcw R. W. THORPE & ASSOCIATES 815 Seattle Tower • 3rd & University • Seattle, Washington 98101 • (206) 624 -6239 Suite 503 • 1110 West Sixth Avenue • Anchorage, Alaska 99503 • (907) 276 -6846 Mr. Mark Caughey Associate Planner TO City of Tukwila 6200 Southcenter Blvd Tukwila, WA 98188 Dear Mark: DATE November 23, 1982 SUBJECT Tukwila Hotel FEIS Enclosed, please find 25 copies of the Tukwila Hotel Final EIS, per your request in letter dated November 15, 1982. As of November 23, 1982, all copies of the Tukwila Hotel Final EIS have been mailed or delivered to the recipients listed on pages IV and V of said Final EIS. JDP:rmc enc STATE OF WASHINGTON ) ss County of King On this day personally appeared before me JON POTTER to me known to be the individual described in and who executed the within foregoing instrument and purposes therein mentioned. Given under my hand and official seal this 23rd day of November, 1982. Notary public in and for State of Washington residing in Seattle VIII LA 9 City of Tukwila ►Sti ` O y a 1909 6200 Southcenter Boulevard Tukwila Washington 98188 Frank Todd, Mayor 15 November 1982 R.W. Thorpe Associates 815 Seattle Tower Seattle, WA 98101 Attn: Jon Potter Subject: Tukwila Hotel F.E.I.S. We have reviewed the second working draft of the F.E.I.S., and hereby authorize R.W. Thorpe and Associates to distribute the document to designated recipients, subject to the following conditions: 1.) Execution of minor editorial corrections as noted in red on the working draft. 2) Provision of twenty -five (25) copies of the F.E.I.S. for over -the- counter distribution. 3) Notation of "no cost" for copies distributed to the public on Page iii. 4) Modification of the text of responses two and three to the comments of WSDOT; we believe that the consistency and objectivity of the responses should be enhanced by the following revisions: Comment 2, Point 2 "If a signal is warranted after these trial measures are proven ineffective, the costs thereof should be borne by benefitting property owners in proportion to their contribution to total traffic volumes • that exist during those hours when traffic signal warrants are satisfied, assuming WSDOT does not have the resources to provide the improvements." Comment 2 "As the WSDOT letter points out, the installation of the traffic signal could have .a significant adverse impact on peak traffic conditions at the S. 158th St. /West .Valley Highway intersection which may in turn impact properties and businesses in the vicinity, including Longacres and the Tukwila Hotel. This is one reason why installation of a traffic signal was not recommended as a mitigation strategy for the hotel project. The addition of southbound left turn lanes, as suggested, is only one of many optional capacity- improvement Page -2- R.W. Thorpe Associal. 15 November 1982 features which could be explored in the context of any future signal/ intersection design, and is not necessarily the optimal solution at this time." Please proceed with these corrections and then with distribution. As noted in your memo of November 8, we would appreciate receiving a letter notifying us that distribution is complete. Thanks for your help. Tukwila anning Department Mafk Caughey Associate Planner MC /blk xc: Ping. Dir. R. W. THORPE & ASSOCIATES 815 Seattle Tower • 3rd & University • Seattle, Washington 98101 • (206) 624 -6239 Suite 503 • 1110 West Sixth Avenue • Anchorage, Alaska 99503 • (907) 276 -6846 TO Mr. Mark Caughey City of Tukwila Planning Department City Hall 6200 Southcenter Boulevard Tukwila, WA 98188 Dear Mark: DATE November 8, 1982 SUBJECT Tukwila Hotel FEIS — Enclosed, please find the Tukwila Hotel Final EIS for your review and your copy, with comments, of the 1st Draft of the FEIS. In addition to your authorization to print, we will require the following: o Cost of the FEIS o Number of copies for over - the - counter distribution As before, we will transmit a notorized letter informing you of the FEIS distribution. Review at your earliest convenience will be appreciated. Sincere on Potter JDP:rmc enc �11LA 4 city. of Tukwila 2 6200 Southcenter Boulevard 1909 Tukwila Washington 98188 Gary L. VanDusen, Mayor 19 October 1982 R.W. Thorpe Associates 815 Seattle Tower Seattle, WA 98101 Attn: Jon Potter SUBJECT: E.I.S. -- Tukwila Hotel Since our.last conversation of 30 September1982, wehave not heard of further progress on publication of the F.E.I.S. for the Tukwila Hotel. As we have observed several times in past correspondence on this matter, the SEPA guidelines expect publication of the final E.I.S. within seventy -five days of the date that the draft E.I.S. is made available for public review. By our reckoning, the seventy -five day period ended on 31 August 1982. We have also determined that an additional 75 days will elapse on 14 November 1982. After review of this matter, it is our current assessment that publication of only comment letters and responses more than 150 days after the initial publication of the D.E.I.S. may not be warranted on this project; rather, it may be necessary to re -write portions of the D.E.I.S. in reply; to critical comments and then re- circulate the re- written document as provided in WAC- 197 -10- 580(3). This procedure will help to offset the consequences of undue delay in publishing the final document. Once again, we urge your assistance in completing the F.E.I.S. prior to 14 November 1982 so that the costly alternative of re- circulating the Draft E.I.S. can be avoided. TUKW:ILA,P'CJ(NNING DEPARTMENT Mar Caughey Associate Planner MC/blk xc: Ping. Dir. Christensen Group *11LA y •' .1 City of Tukwila O 2 6200 Southcenter Boulevard (T 1 Tukwila Washington 98188 ta 19 Oa Gary L VanDusen, Mayor 30 September 1982 R.W. Thorpe Associates: 815 Seattle Tower Seattle, WA. 9.8101 Attn: Jon Potter SUBJECT: E.I,S,, Tukwila hotel As a followAip to_our conversation of this afternoon, I understand that Transpo Group is continuing their efforts to draft a quantitative response to the WSDOT comment letter. L. understand, too,_that when that material is ready, you will send to us a complete working draft of • the F,E,I,S. for review as-requested in our letter of 7 .September 1982. It is also my understanding that completion of the f.E,I,S, is.dependent on obtaining appropriate-authorizations from your client to proceed with the work, Keeping i'n mind the urgency of compliance with..WAC- 19710.-550, we shall await your transmittal of the working •f.E :I',S. Please indicate. if any-of these understandi :ngs are in error. TUKW-ILA/ 4NING DEPARTMENT Mark Caughey Associate Planner MC /b.l k . xc: Ping, Di'r, Christensen Group • • R.W. Thorpe & Associates ❑ Planning • Environmental Analysis • Economics September 7, 1982 Mr. Mark Caughey City of Tukwila Planning Department City Hall 6200 Southcenter Boulevard ,Tukwila, WA 98188 Dear Mark: Anga EP8 1982 -_ .. OF TU!KWILA PL=ANING DEPT. Associates: Deborah Krouse, APA Kathryn Figon, ASLA The following paragraph with your modifications and approval will be included at the beginning of the Final EIS for the Tukwila Hotel. Also included is a letter from TRANSPO responding to the Department of Transportation comments. The distribution of this Final Environmental Impact Statement has exceeded the 75 day time period normally required by the lead agency (City of Tukwila) per SEPA guidelines and WAC 197 -10 -550. Due to the complexity of two of the issues and the necessity to fully disclose all impacts and mitigating measures, the City of Tukwila extended the 75 day time period. As a result of the extension, this document contains responses to comments from the Washingon State Department of Transportation and the City of Tukwila Public Works Director. Sincerely, ciA:7" on Potter JDP:rmc enc Seattle: 815 Seattle Tower • 3rd & University • Seattle, WA 98101 • (206) 624 -6239 Anchorage: Suite 503 • 1 1 1 0 West Sixth Avenue • Anchorage. AK 99503 • (9071276-684B Transportation Engineering & Planning Consultants August 26, 1982 Mr. Robert Thorpe R. W. Thorpe & Associates 815 Seattle Tower 3rd & University Seattle, WA 98101 SUBJECT: TUKWILA HOTEL PROJECT - RESPONSE TO WSDOT COMMENT LETTER Dear Bob: After reviewing the traffic information presented in the Draft EIS and discussing WSDOT's letter with David Markley of our staff, I suggest the following response for the Final EIS: 1. The traffic engineering consultant reaffirms his conclusion that a traffic signal would not be warranted at the SR 181 /S. 158th Street intersection; channelization of turning movements into and out of the hotel site is all that is required. WSDOT's letter presents no factual evidence to support their conclusion. If WSDOT has counts which indicate that a signal is warranted, they should be supplied to the City. In any event, the majority of the need for signalization of the SR 181 /S. 158th intersection must be attributed to the existing Longacres traffic volumes; thus, the responsibility for funding such improvements should be borne largely by Longacres. A complete discussion of the consultant's analysis is presented on pages 25 -28 of Appendix A in the Draft EIS. 2. If a signal is not installed, it will not add to the Longacres peak hour traffic signal. The costs of adding lanes to accommodate Longacres traffic should be borne by Longacres. 3. Although this measure does not appear necessary, the entrance could be redesigned to include a southbound right -turn deceleration lane. 4. Illumination modification should be considered in the final design of the project access. 5. It does not appear that additional right -of -way is necessary to allow a right -turn lane into the site. The signal and dual left -turn lanes recommended by WSDOT are not warranted by the potential traffic impacts of the proposed Tukwila Hotel The TRANSPO Group, Inc. • 23-148th Avenue SE, Bellevue, Washington 98007 • (206) 641 -3881 project. Thus, if WSDOT feels that such measures are necessary to improve existing Longacres traffic flows, then the responsibility of securing additional right -of -way should rest with Longacres. Clearly there is a significant difference of professional opinion between WSDOT and the traffic consultant. A meeting should be held among the City, WSDOT and TRANSPO to review the respective analyses and recommend a single set of traffic improvements. Funding for these measures should be apportioned among the various parties in proportion to the benefit accrued. Please call me if you have any questions. Sincerely, The TRANSPO Group, Inc. Joseph P. Savage, Jr. Principal JPS /lf kv�V�1 1 L A 4 z Ill 19 09 City of Tukwila 6200 Southcenter Boulevard Tukwila Washington 98188 Frank Todd, Mayor 7 September 1982 R.W. Thorpe Associates 815 Seattle Tower Seattle, WA 98101 Attn: Jon Potter SUBJECT: Working Draft F.E.I.S. -- Tukwila Hotel We have completed our review of the working draft FEIS as requested by your office. We note that the document is incomplete at this time in that it contains no response to the letter of 23 July 1982 from the Washington State Deaprtment of Transportation. Our suggested corrections are noted on the enclosure. In my subsequent discussions of this matter with your firm, I believe that I emphasized most strongly that a carefully - prepared, well- researched and quan- titaive response to the WSDOT letter is imperative to insure that the result- ing impact statement is sufficient to forestall legal challenge of its adequa- cy. It is also our expectation that publication of the FEIS will proceed apace as the seventy- five day period specified in WAC 197 -10 -550 is already past. As noted in your cover letter of 24 August 1982, a narrative explanation of the delay in publication is expected to acompany the completed FEIS. Jon, the Tukwila Hotel EIS has been in process for quite some time now; I be- lieve it should be brought to a conclusion. We ask that your firm commit the resources necessary to complete and publish the final EIS. TUKWILA PLANNING DEPARTMENT Mark Caughey Associate Planner encl. xc: Ping. Dir • R. W. THORPE & ASSOCIATES 815 Seattle Tower • 3rd & University • Seattle, Washington 98101 • (206) 624 -6239 Suite 503 • 1110 West Sixth Avenue • Anchorage, Alaska 99503 • (907) 276 -6846 • TO Mr. Mark Caughey Associate Planner City of Tukwila 6200 Southcenter Boulevard Tukwila, WA 98188 Dear Mark: DATE SUBJECT August 28, 1982 Tukwila Hotel Enclosed are two more Working Drafts of the Final EIS for Tukwila Hotel. Also enclosed is a copy of the letter of transmittal which was attached to one copy delivered to Brad Collins on the morning of August 27th. Sincere , on Potter JDP:rmc enc • II Mtn: R.W. Thorpe & Associa es Planning • Environmental Analysis • Economics August 26, 1932 Mr. Mark Caughey Associate Planner City of Tukwila 6200 Southcenter Boulevard Tukwila, WA 98133 Dear Mark: LAUG 2 7 1982 L OF Tij iLA P�::1,NNING DEPT. Associates: Deborah Krouse, APA Kathryn Figon, ASLA Enclosed are responses to comments to the Draft EIS for the proposed Tukwila Hotel. Review and comment at your earliest convenience will be appreciated. I explained to Brad Collins by phone on Thursday, August 26th, that several responses to comments are forthcoming. Issues need to be resolved concern- ing traffic and water supply. The City's Public Works Director will be providing us with information which is necessary for responding to these issues. Brad Collins said an explanation will be required in the Final EIS for reasons of the necessity to extend the 75 -day FEIS preparation deadline. We are eager to complete the Final EIS and will transmit the remainder of the Working Draft FEIS to you as expeditiously as possible. If you have any questions, please feel free to call. Sincerely, JDP:rmc enc cc: Ken Baines Jerry Baysinger Seattle: 815 Seattle Tower • 3rd & University • Seattle, WA 98101 • (206) 624 -6239 Anchorage: Suite 503 • 1 1 1 0 West Sixth Avenue • Anchorage, AK 99503 • (907) 276 -6846 City of Tukwila 6200 Southcenter Boulevard Tukwila Washington 98188 2 August 1982 R.W. Thorpe & Associates 815 Seattle Tower Seattle, WA 98101 Attn: Jon Potter SUBJECT: Tukwila Hotel EIS (_EPIC- 20- 82 -SA) As a follow -up to our transmittal of 27 Julr19.82, the attached letter from the Department of Game is sent for your i'nclusi:on • and response in the final ETS:. We realize that the letter was received following expiration of the thirty -five. day comment. period; it is our wish, however, . that . the.ir remarks lie included in the. final environmental document, Tukwila- anning Department Mask Caughey A.ssoci.ate Planner MC/ 1 k. xc� Pl, n9 : Dir: NPSEN -PL -711 DEPARTMENT OF THE ARMY SEATTLE DISTRICT. CORPS OF ENGINEERS P.O. BOX C•3755 SEATTLE. WASHINGTON 55124 29 APR1982 James W. Guenther, Director Ling County bepartment of Public Works 900 Ling County Administration Building 500 Fourth Avenue Seattle, Washington 98104 • Dear Xr. Guenther: Please excuse our delay in responding to your 22 October 1981 letter regard- ing the pumping of local drainage into the Green River. We have been waiting for the completion.of•local inflow studies for the Green River flood damage reduction study. In your letter, two points were raised which require clar- ification: (1) the accommodation of 400 cubic feet per second (c.f.s.) pumping into the Green River from the Soil Conservation Service's eastside project and (2) the U.S. Army Corps of Engineers' authority to manage eater resources within the basin. The Seattle District must continue to operate Howard A. Ranson Dam project, as authorized by Congress, to control the Green River floe to 12,000 c.f.s. at the Auburn gage. Any coincidental discharge from the Black River pumping plant or other facilities will increase flooding in unleveed areas and increase the probability of overtopping and /or failure of existing levees. We concur with you that the Corps of Engineers has a commitment to flood control in the Green River basin; however, our authority does not extend beyond the operation of Howard A. Ranson Dam. We do not have authority to regulate the Water resource activities and land -use planning of local govern- ments in the Green River basin. We will continue to monitor the Green River eater levels at Auburn and Will notify Ling County When the flow at Auburn is expected to exceed 5,000 c.f.s. Our ongoing flood damage reduction study will define those reaches of the lower Green River where levee improvements can be justified. We will provide Ring County available hydrologic data on the Green River system as `._ IPSEN PL -?B . James W. Guenther, Director input for the county's basin water management plan. If you have any ques- tions, please contact Ms. Linda Smith, Study Manager, at telephone (206) 764 -3620. • Copy furnished: Lynn Brown, Acting State Conservationist . Soil Conservation Service, Boom 360 O.S. Courthouse Spokane, Washington 99201 Harold Robertson. Manager 1 Planning Division Ling County Courthouse, W217 Seattle, Washington 98104 Mr. Wes Edens Federal Emergency Management Administration 130 228th Street Southwest Bothell, Washington 98011 Sincerely, R.P. SELLEVOLD, P.E. Chief, Engineei ing Division 2 1. NPSEN -PL -ER • • DEPARTMENT OF THE ARMY SEATTLE DISTRICT. CORPS OF ENGINEERS P.O. BOX C -3755 SEATTLE. WASHINGTON 98124 JUL 1982 Mr. Mark Caughey Planning Department City of Tukwila 6200 Southcenter Boulevard Tukwila, Washington 98188 Dear Mr. Caughey: We have reviewed the draft environmental impact statement (EIS) for the Tukwila Hotel, Tukwila, Washington, with respect to the U.S. Army Corps of Engineers' areas of responsibility for flood control, navigation, and regulatory functions. We have the following comments. a. Please refer to the last paragraph on page 35 and to item 2 under Mitigating Measures on page 37. It is not clear whether interior runoff will be pumped or drained by gravity. b. The EIS states that existing site is diked and surface runoff prevented from draining to the Green River (last paragraph on page 35). However, both the preceding paragraph and item 2 under Mitigating Meas- ures on page 37 state that surface water will be drained to the Green River at the same rate as presently exists. This inconsistency should be resolved. c. There is no discussion of the engineering involved in designing the interior drainage system. Some assurance should be provided that the plan will function if the Green River is at maximum controlled flow and the design interior storm occurs at the same time. d. Please refer to figure 6 on page 28 and figure 7 on page 36. We recommend deleting the note on these figures. With respect to the Corps of Engineers' storm water discharge policy, the notes are misleading. To clarify the basis for this recommendation, a copy of a recent letter we sent to King County is attached (inclosure 1). This letter describes our authority to manage water resources within the Green River Basin. e. Please refer to page 35, second paragraph, fifth line. Elevation should be 24.2 feet instead of 25.8 feet. • • NPSEN -PL -ER Mr. Mark Caughey f. There is a flood danger to individuals using the basement because the floor is proposed at elevation 19 feet, which is about 5 feet below the maximum flood level. We recommend the city of Tukwila develop flood warning procedures to notify the hotel management that a flood danger could exist to occupants and contents in the basement. Although this flood threat is remote, a warning system should be developed to assure safety of hotel occupants. g. The pedestrian bridge, which may be constructed to span the Green River, should be clear span to prevent obstruction to floodflows and potential collection point for debris. h. The project area would be inundated by a basin wide standard project flood. Thank you for the opportunity to review this statement. If you have any questions regarding our comments, please contact Dr. Steven F. Dice, telephone (206) 764 -3624, of my staff. 1 Incl As stated Sincerely, 2 R.P. SEREVOU , P.E. Chia; • 10'SEN -PL -141 DEPARTMENT OF THE ARMY SEATTLE DISTRICT. CORPS OF ENGINEERS P.O. SOX C -3755 SEATTLE. WASHINGTON 95124 2 9 APR V82 • James W. Guenther, Director King County bepartment of Public Works 900 King County Administration Building 500 Fourth Avenue Seattle, Washington 98104 Dear Mr. Guenther: Please excuse our delay in responding to your 22 October 1981 letter regard- ing the pumping of local drainage into the Green River. We have been waiting for the completion of-local inflow studies for the Green River flood damage reduction study. In your letter, two points were raised which require clar- ification: (1) the accommodation of 400 cubic feet per second (c.f.s.) pumping into the Green River from the Soil Conservation Service's eastside project and (2) the O.S. Army Corps of Engineers' authority to manage eater resources within the basin. The Seattle District must continue to operate Howard A. Hanson Dam project, as authorized by Congress, to control the Green River floe to 12,000 c.f.s. at the Auburn gage. Any coincidental discharge from the Black River pumping plant or other facilities will increase flooding in unleveed areas and increase the probability of overtopping and /or failure of existing levees. We concur with you that the Corps of Engineers has a commitment to flood control in the Green River basin; however, our authority does not extend beyond the operation of Howard A. Hanson Dam. We do not have authority to regulate the vater resource activities and land -use planning of local govern - ments in the Green River basin. We will continue to monitor the Green River eater levels at Auburn and will notify King County when the flaw at Auburn is expected to exceed 5,000 c.f.s. Our ongoing flood damage reduction study will define those reaches of the lower Green River where levee improvements can be justified. We will provide Ring County available hydrologic data on the Green River system as • • • 'USER -PL -FR . James W. Guenther, Director input for the county's basin water management plan. If you have any ques- tions, please contact Ms. Linda Smith, Study Manager, at telephone (206) 764 -3620. • - -Copy furnished: Lynn Brown, Acting State Conservationist Soil Conservation Service, Room 360 U.S. Courthouse Spokane, Washington 99201 Harold Robertson. Manager Planning Division Xing County Courthouse, W217 Seattle, Washington 98104 Mr. Wes Edens Federal Emergency Management Administration 130 228th Street Southvest Bothell, Washington 98011 Sincerely, R.P. SELLEVOLD, P.E. Chief, Enginee.ing Division -_- 2 JOHN SPELLMAN Governor STATE OF WASHINGTON DEPARTMENT OF GAME 600 North Capitol Way, CJ-11 • Olympia, Washington 98504 • (206) 753 -5700 July 27, 1982 Mark Caughey City of Tukwila Planning Department City Hall 6200 Southcenter Boulevard Tukwila, Washington 98188 Dear Mr. Caughey: FRANK LOCKARD Director DRAFT ENVIRONMENTAL IMPACT STATEMENT: Tukwila Hotel Your document was reviewed by our staff as requested; our comments follow. The riparian buffer zone proposed along the Green River is inadequate to protect water quality and streamside habitat. A buffer zone does not fulfill its functions if major construction such as dikes and a fire access road is done within it. We recommend a minimum undisturbed buffer of 100 feet along the Green River at the project site. Dikes and the fire access road should be constructed outside this buffer. Areas disturbed from construction of the storm water outlet should be revegetated with native plant species. Our specific comments on the EIS are: Page 19, paragraph 5; page 20, paragraph 6. The proposed development does not conform with the Shoreline Management Program described in Appendix D. An eight -story hotel building within 100 feet of the river does not meet the use regulation that no structures exceeding 35 feet in height be built within the Low Impact Zone (Appendix D, page 6.4). Page 38, paragraph 4. A maintenance schedule for the oil /water separators should be specified prior to approval of the storm water drainage plans by the city of Tukwila. \Page 43, paragraph 1. Past reductions in wildlife habitat make the remaining habitat all the more important. -Pages 43 -44, Fish. This section presents good information on the existing fish resources of the Green River. However, the project as proposed will impact fish habitat along the Green River. The decrease • • Mark Caughey July 27, 1982 Page Two in quality of site runoff plus the lack of an adequate riparian buffer will degrade the aquatic habitat and impact the fish resource. Thank you for sending us your document. We hope you find our comments helpful. BW:cv cc: Agencies Region Sincerely, THE DEPARTMENT OF GAME Betsy Wolin, Applied Ecologist Environmental Affairs Program Habitat Management Division \N1LA 47s_ Cit y f Tukwila • 6200 Southcenter Boulevard - Tukwila Washington 98188 • 190E Frank Todd, Mayor 27 July 1982 R.W. Thorpe & Associates 815 Seattle Tower Seattle, WA 98101 Attn: Jon Potter Subject: Tukwila Hotel EIS (EPIC 20- 82 -SA) On 23 July 1982, the 35 -day period for soliciting public comment on the Tukwila Hotel Draft Environmental Impact Statement ended, and a number of comments were received by this- office. In order for your firm to prepare and circulate. the final EIS document within the time period specified in WAC 197710 -550, we are transmitting the following inventory of responses: Letter of-24 June 1982 Letter of 23 June' 1982 Letter of 19 July 1982 - Letter of 23 July 19.82 - Letter of 22 July 1982 Letter of 26 July 1982 - Memo of 23 July 1982 • - Letter of'20 July 1982 - - King County Conservation District Office of Archaeology /Historic.Preservati.on Department of Ecology Department of Transportation - P.S.A.P.C.A. Department of the Army, Corp of Engineers Byron.Sneva; Public Works Director, Tukwila METRO Prior to circulation of the Final EIS, we would appreciate the opportunity to review the responses to individual comments prepared by your office. We cannot emphasize too strongly that timing is essential in release of the approved FEIS, both to satisfy state law and to complete City approval of the project's Shoreline Management Substantial Development Permit. If we can assist your efforts in this regard, please call. MC/blk xc; Planning Director Tukwi:la,' 'anning Department rk Caughey Associate Planner NPSEN -PL -ER • DEPARTMENT OF THE ARM, SEATTLE DISTRICT, CORPS OF ENGINEERS P.O. BOX C -3755 SEATTLE. WASHINGTON 98124 Mr. Mark Caughey Planning Department City of Tukwila 6200 Southcenter Boulevard Tukwila, Washington 98188 Dear Mr. Caughey: MEWED JUL 26 198d Ci OF TUKWILA f „:INNING DEPT. • L'i 'uj e} _�� ,-. '`ice •. t -" , .(-; {9 t ( ), SUDJ i We have reviewed the draft environmental impact statement (EIS) for the Tukwila Hotel, Tukwila, Washington, with respect to the U.S. Army Corps of Engineers' areas of responsibility for flood control, navigation, and regulatory functions. We have the following comments. a. Please refer to the last paragraph on page 35 and to item 2 under Mitigating Measures on page 37. It is not clear whether interior runoff will be pumped or drained by gravity. b. The EIS states that existing site is diked and surface runoff prevented from draining to the Green River (last paragraph on page 35). However, both the preceding paragraph and item 2 under Mitigating Meas- ures on page 37 state that surface water will be drained to the Green River at the same rate as presently exists. This inconsistency should be resolved. c. There is no discussion of the engineering involved in designing the interior drainage system. Some assurance should be provided that the plan will function if the Green River is at maximum controlled flow and the design interior storm occurs at the same time. d. Please refer to figure 6 on page 28 and figure 7 on page 36. We recommend deleting the note on these figures. With respect to the Corps of Engineers' storm water discharge policy, the notes are misleading. To clarify the basis for this recommendation, a copy of a recent letter we sent to Ring County is attached (inclosure 1). This letter describes our authority to manage water resources within the Green River Basin. e. Please refer to page 35, second paragraph, fifth line. Elevation should be 24.2 feet instead of 25.8 feet. PRELUdi SUBJECT T _ '. REVISION iC: aRBt (!'s%�^_Y'iG!,7a,- rF. "f- 1_L-�i "s'.'s?.' i'. :ri!JT- '�•;.i�C�:.". -.T- .'.'1.��'er =_!s.'as+�?",= -�r: - ..i`.'!i�..".: '�' �„'r �:. :' i`.`,."�r'vC :s'v :",^ .. c.... x �`-�e _ ... NPSEN -PL -ER Mr. Mark Caughey P P.,4111f SUBJECT T REVISION f. There is a flood danger to individuals using the basement because the floor is proposed at elevation 19 feet, which is about 5 feet below the maximum flood level. We recommend the city of Tukwila develop flood warning procedures to notify the hotel management that a flood danger could exist to occupants and contents in the basement. Although this flood threat is remote, a warning system should be developed to assure safety of hotel occupants. g. The pedestrian bridge, which may be constructed to span the Green River, should be clear span to prevent obstruction to floodflows and potential collection point for debris. h. The project area would be inundated by a basin wide standard project flood. Thank you for the opportunity to review this statement. If you have any questions regarding our comments, please contact Dr. Steven F. Dice, telephone (206) 764 -3624, of my staff. 1 Incl As stated Sincerely, •' 4r Y SUBJECT Tl REVISION JOHN SPELLMAN Governor • STATE OF WASHINGTON DEPARTMENT OF TRANSPORTATION Office of District Administrator • D -1, 6431 Corson Ave. So., C -81410 • Seattle, Washington 98108 Mr. Mark Caughey City of Tukwila Planning Department City Hall 6200 Southcenter Boulevard Tukwila, WA 98188 Dear Mr. Caughey: July 23, 1982 DUANE BERENTSON Secretary &AMR) JUL 23 1982 OF T.UKWl1A .r,NNJNG DEPT, SR 181 City of Tukwila DEIS Review Tukwila Hotel (K -434) We have reviewed the above noted document and due to the projected traffic volumes generated by this project, mitigation will be re- quired as follows: 1. The projected traffic volumes indicate a traffic signal is warranted at the intersection of SR 181 and S. 158th Street. This signal system must be coordinated with emergency pre- emption. 2. The installation of a signal will severely add to Longacres peak traffic hour problems. To resolve this problem, two southbound left turn lanes will be required to improve the level of service. 3. A southbound deceleration right turn lane into the Hotel may be required. 4. The above noted mitigation items necessitate the modification of the existing illumination system. 5. Additional highway right of way will be necessary to accommodate the required traffic mitigation measures. None of the above items are contained within this department's cur- rent operating budget; therefore, funding of these mitigating mea- sures will have to come from other sources. 'Mr. Mark Caughey July 23, 1982 Page Two Thank you for the opportunity to review this proposal. If you have any questions regarding this .matter, please call me at 764 -4356. Very truly yours, J. D. ZIRKLE, P.E. Distr= ct.Administrator HAROLD L. MORGAN, g' .E. Acting Design Engineer PRL:dp SERVING: KING COUNTY 200 West Mercer St. P.O. Box 9863 Seattle, 98109 (206) 344 -7330 KITSAP COUNTY Dial Operator for Toll Free Number Zenith 8385 Bainbridge Island Residents Dial 344 -7330 PIERCE COUNTY 213 Hess Building Tacoma, 98402 (206) 383-5851 SNOHOMISH COUNTY (206) 259 -0288 BOARD OF DIRECTORS PUGET SOUND AIR POLLUTION CONTROL AGENCY aIMBe1Eo JUL 2 3 1982 OF TUKWILA F . ,NNJNG DEPT. Mr.. Mark Caughey City of Tukwila Planning Department City Hall 6200 Southcenter Boulevard Tukwila, WA 98188 Dear Mr..Caughey: 200 West Mercer Street, Room 205, P.O. Box 9863 Seattle, Washington 98109 (206) 344 -7330 July 22, 1982 Tukwila Hotel The following comments are submitted in response to the draft environmental impact statement for the Tukwila Hotel. The proponent should be encouraged to inplement the first three mitigating measures under "Air Quality" listed on page 4 and on page 34. Mitigating measure number 4 (on page 5 and on page 34) states: "See Public Transpor- tation - impacts related to 'Traffic', page 65." Yet on page 65 there are no mitigating measures listed under either section c - Transportation Systens or section d - Movement and /or Circulation of People and Goods. This should be clarified. On page iv, under Actions, Permits and Licenses Required, the Puget Sound Air Pollution Control Agency. should be added, since it is probable that the proposed hotel may have fuel-burning equipment, an incinerator, paint spray booth, gasoline storage tank' or other equipment that requires approval under this Agency's Notice of Construction program. On page 33, the last sentence in paragraph 4 under impact, could be reworded as follows: "Furthermore, as more stringent federal motor vehicle emission controls and the Washington State vehicle emission inspection and maintenance program take effect, there could be an overall decline in vehicle- related pollutants." Thank you for the opportunity to comment. sj CHAIRMAN: Gene Lobe, Commissioner Kitsap County; Joe Stortini, Councilman for Booth Gardner, Pierce County Executive; Doug Sutherland, Mayor Tacoma Very truly yo ouv,„ Arthur R. 1.1 . t tr Air Pollution Control Officer James B. Haines, Councilman Snohomish County; Randy Revelle, King County Executive; William E. Moore, Mayor Everett; Charles Royer, Mayor Seattle • VICE CHAIRMAN: Harvey S. Poll, Member at Large Gene Nelson, Mayor Bremerton A. R. Dammkoehler, Air Pollution Control Officer Mr. Mark Caughey July 23, 1982 Page Two Thank you for the opportunity to review this proposal. If you have any questions regarding this matter, please call me at 764 -4356. Very truly yours, J. D. ZIRKLE, P.E. District Administrator HAROLD L. MORGAN, V.E. Acting Design Engineer PRL:dp JOHN W. DOBSON PAUL W. HOUSER DAVID C. DOBSON WYMAN K. DOBSON DOBSON, HOUSER & DOBSON ATTORNEYS AT LAW 229 WILLIAMS AVE. SO. P. 0. BOX 59 RENTON, WASHINGTON 98057 July 20, 1982 Mr. Brad Collins Planning Director Planning'Department City of Tukwila Tukwila, WA 98188 RE: Christensen Group, Inc. Dear Sir: [JUL 21 laej C , OF TUKYI PLANNING DEff' , Miss Helen Nelsen, owner of the property to the North of the property now sought to be developed by the Christensen Group; has an interest as an adjoining property owner and as the original vendor of the prop- erty now owned by the Christensen Group. The property was originally sold under recorded in the office of the King County.Auditor recorded on August 14, 1969, under Auditor's File No. 6551402 being recorded in, Volume 128 of records, page 590.. Reference is made to the description contained in the contract, copy of which description is attached and marked Exhibit "A ". Under the terms of the contract there are certain obli- gations on the part of the purchaser. Paragraph 5 of the contract ,provides " * * ** *purchaser agrees not to use said premises for gasoline service station, automotive sales or repair business, including new and used cars, trucks or heavy equipment sales and service." Under Paragraph 7 of the. contract the seller granted to the purchaser a slope easement ten feet in width along the north line of the property sold which'carried the provision " * ** *that any fill within',the slope's; easement shall be;made with topsoil borrowed,. „from other portions of the premises conveyed. to purchaser. TELEPHONE (206) 255 -8641 Mr. Brad Collins Page 2 July 20, 1982 "Purchaser covenants and agrees they will not voluntarily grant any easement to the flood control division of King County, or to any other political subdivision or any in- dividual or corporation along the Green River, adjacent to the premises covered by this agreement, which easement would grant to the general public the right to use such easement. It is understood and agreed that in the designing of the improvements to be placed upon the premises covered by this agreement the drainage plan will be so designed that surface drainage is directed to the West Valley Road or the River, and not towards property of Seller on the north. In this regard drainage plans shall be submitted to the Seller for her inspection and approval, prior to the development." Paragraph 9 of the contract provides: "It is understood and agreed that Purchaser proposes to construct an entrance driveway to the above described premises, which driveway shall be fifty (50) feet wide and shall provide access to and from the West Valley Highway. The center of said driveway will be located at a point on the east line of the above described premises which point shall be determined by an exten- sion of the center line of South 158th Street. Seller recognizes that the location of said driveway must con- form to the requirements of state law, and agrees to locate any driveway which she may construct on that portion of Seller's property lying north of the above described premises, at such location as may be approved by the State Highway Department. In this connection Seller agrees to use her best efforts to assist Pur- chaser in obtaining the location of a traffic light at the intersection of South 158th Street and West Valley Highway." • Miss Nelsen desires that the County Commission and the City of Tukwila be advised as to these contract provisions and asks that in any granting of permits your department and the City of Tukwila take them into consideration. Mr. Brad Collins Page 3 July 20, 1982 If you desire a complete copy of the contract we would be happy to furnish it to you. If you have any ques- tions, please contact either myself at 255 -8641 or Miss Nelsen at 255 -6535. Thanking you for your consideration I am Very truly yours, 1 iHN W. DOBSON �WD:jh. encls CC: Miss Helen Nelsen Christensen Group: Attention Kenneth W. Baines mEPRo Municipality of Metropolitan Seattle Exchange Bldg. • 821 Second Ave., Seattle, Washington 98104 July 20, 1982 Mark Caughey City of Tukwila Planning Department City Hall 6200 Southcenter Boulevard Tukwila, Washington 98188 Draft Environmental Impact Statement Tukwila Hotel Dear Mr. Caughey: • Metro staff has reviewed the proposal and offers the following comments. Wastewater Facilities We note the proposal is within Metro's Renton treatment plant service area. Metro has prepared a facilities plan for the Renton system with a grant from DOE and EPA, in part because the Renton treatment plant has reached "design" capacity and continued development is occurring within the service area. A final plan for the Renton service area was adopted by the Metro Council in November 1981 and contains a recommended program for upgrading the Renton system so that water quality and health will con- tinue to be protected. The plan calls for these improve- ments to be on line in the summer of 1986. Water Quality In order to maintain water quality, all mitigating measures included on pages 26, 37 and 38 should be implemented. In addition, an oil /water separator should be included in the design of the stormwater detention system. The drainage/ detention system must be maintained on a regular schedule to be effective. This schedule should be developed with the proponent committed to implementation. Mitigating measures for water resource impacts (p. 37) include straw bales as a primary temporary erosion control technique. Use of this technique has not proven effective in all cases. We recommend that the proponent consult with the King County Conservation District for advice on designing and implementing an effective erosion and sedi- mentation control plan. Mark Caughey DEIS /Tukwila Hotel July 20, 1982 Page two Construction and Water Quality (available from .King County) is a good reference manual for several techniques and specific applications effective in protecting water quality in the Seattle -King County region. Transportation Excellent peak -hour bus service is available along West Valley Road to and from downtown Seattle. It is likely that some hotel guests might wish to use this service if it were accessible. A raised sidewalk should be provided to connect the hotel to this road in order to provide a safe walkway through the parking lot. Proponents should consult with Chuck Gehrts, Metro Transit Planner, at 447 -6367, concerning bus -stop locations prior to commencing construction. The construction of the pedestrian bridge over the Green River would offer the opportunity for hotel guests to walk to major attractions on the west side of the river, perhaps resulting in some small reduction in auto traffic and congestion otherwise resulting from this project. Thank you for the opportunity to review and comment. Very truly yours, Rodney G. Proctor, Manager Environmental Planning Division RGP:ssj JOHN SPELLMAN Governor STATE OF WASHINGTON • DEPARTMENT OF ECOLOGY Mail Stop PV -11 • Olympia, Washington 98504 • (206) 459 -6000 July 19, 1982 Mr. Mark Caughey City of Tukwila Planning Department 6200 Southcenter Boulevard Tukwila, Washington 98188 Dear Mr. Caughey: Thank you for the opportunity to review the draft environmental impact statement for the Tukwika Hotel. As noted in the EIS, a flood control zone permit is required from the Department of Ecology. An application should be submitted to the Department of Ecology, Northwest Regional Office, 4350 - 150th Avenue, NE, Redmond, Washington 98052. DONALD W. MOOS Director If you have any questions, please call Mr. Herman Huggins, Northwest Regional Office, at 885 -1900. BJR:lc cc: Herman Huggins Sincerely, —5,6tAla-24 "7,,e:g4L Barbara J. Iritchie Environmental Review Section 3 • • King County Conservation District 35 SOUTH GRADY WAY RENTON, WASHINGTON 98055 RHONE JUN 2g 1982 OF TUKWIL4 r .ANNfNG DEPT. Ju Mr. Mark Caughey City of Tukwila Planning Dept. Tukwila City Hall 6200 Southcenter Blvd. Tukwila, WA. 98188 Re _ Tukwila Hotel DEIS Dear Mr. Caughey: 24, 1982 We have reviewed the Tukwila Hotel DEIS and find it thoroughly addresses our concerns. We recommend that the King County Conservation District review the Temporary Erosion - Sedimentation Control Plan (TESCP) to check the adequacy of this plan to assure that clean water enters the Green River. cc: file Sincerely, Robert T. Gavenda Water Quality Planner CONSERVATION - DEVELOPMENT - SELF - GOVERNMENT JOHN SPELLMAN Governor STATE OF WASHINGTON OFFICE OF ARCHAEOLOGY AND HISTORIC PRESERVATION 111 West Twenty -First Avenue, KL -11 • Olympia, Washington 98504 • (206) 753 -4011 June 23, 1982 Mr. Mark Caughey City of Tukwila Planning Department City Hall - 6200 Southcenter Boulevard Tukwila, Washington 98188 Dear Mr. Caughey: JACOB THOMAS Director 111.M1 [JUN 2 8 1982 C6 "-s Y OF TUKWILA PLANNING DEPT. RE: 323- C -KI -10 Tukwila Hotel -DEIS A staff review has been completed of your draft environmental impact statement. The document exhibits a well considered concern for the cultural environment. The document adequately considers known and anticipated cultural resources and the potential for impact to these. We concur with the consultant's recommendation that professional monitoring be conducted of the project activities. Thank you for your consideration of our cultural heritage. and Sincerely, 044 Robert G. Whitlam, Ph.D. Archaeologist 2.' ; .: ,';:; -max"^ „ . seasonally ad ju: This year's t the sharp recess But the of announcement. April's record dt For the 12 t percent. But Jet Labor Statistics, that petroleum it that this 'glut'is Fuel-oil prices the record 3.8 per May's surge in crease in home pr mortgage- interest Overall, the ca 0.8 percent " the 1 Riverside hotel would be nee by Sally Gpne Mahoney Times real- estate reporter Yet another plan has surfaced for increas- ing the number of hotels in Tukwila. The latest is for an 511 million, eight -story structure on the east bank of the Green River, close to Longacres Race Track. The Tukwila Hotel, as it *called,. is proposed by Christensen Group Inc. of Vancouver, Wash., which has developed other hotels in this area, mainly on the Eaastside. The site is 51h acres In the southwest f' corner of the I- 405/West Valley Road inter- ,change, in a bend of the river and at the junction of. South 158th Street with the Wi Valley.. Other hotels earlier have been discussed for the parcel. The hostelry would have 274 guest rooms and parking for 509 vehicles. In addition, it would have a pool„ lounge and dining rob. ,banquet and meeting rooms and could inc'a footbridge across the river to the existing Christensen Trail. Because of its rivet'side -location, the development would be `constructed on piling, and would require ; "floodproofing," according 2 to a draft enviornmental- impact statement, issued by the city of Tukwila; The latter would involve raising the surface of the- site with several feet,of ills p ;us,raising of u,t 'Apple Business gotn.puters: 4fotep; up in quality, but; not' in price''' 13y any standard —price/ performance; dependability, enhanceability., service,, soft- ,ware support, ease c f'under- standin_g and operation- - Apples are the preferred personal computers, ' existing dikes. The land is vacant now. The design, by Jensen, Krause & Schoen- Leber, Portland architect, calls for a painted .exterior with bronze -toned windows. Construction could begin by late this year, and completion would take 10 months. The structure would be fully sprinklered: Employment at the hotel is estimated at about 175 full -time, accounting for nearly 1 ; percent of the entire city's employment base, the statement says. , • Comments on the statement may be made i until July 23, to the Tukwila Planning "y,, F. Department. Copies are in Renton and j • Tukwila ,Libraries r ' " Featuring: Richard F. Russell Runowneed real estate author, lecturer R educator from Catliomia SONY WORD PROC ex • Compact size, w modular,design • Highest resolutio display • �! Simple to us* • Newly developer floppy disk drive density storage 1 - , Built -in micro -cot 'transcriber allow transcription ant • provides a types interface for text input r17771: That portion of Henry Meader Donation Claim No. 46, lying within Section 24, Township 23 North, Range 4 E.W.M. in King County, Washington, described as follows: Beginning at the intersection of the centerline of South 158th Street, as the same was originally established and the west Valley Highway (S.S.H. 2 -M); thence north 7 °40'58" west along the centerline of said West Valley Highway 32.17 feet; thence south 86 °04'17" west 60.13 feet to the west margin of said highway and the truepoint of Beginning; thence southerly along the westerly margin of said highway south 7 °40'58" east 109.00 feet; thence south 2 °31'16" west 101.61 feet; thence south 7 °40'58" east 285.08 feet; thence south 86 °04'17" west to the easterly bank of the Green River as now established; thence westerly and northerly along said river bank to a point which bears south 86 004'17" west from the true point of beginning; thence north 86 004'17" east to the true point of beginning; EXCEPT that portion thereof adjoining the Green River condemned by the State of Washington in King County Superior Court Cause No. 592029; and EXCEPTING from the remainder of said premises a strip of land 10 feet in width southerly and southeasterly of and immediately adjoining the excepted portion first above described. 7t-: �:--. y_+^^ r0„ idY4R' R'.'�TS;WnPM'N'.�nw.!+!kea"rr. e.■7'0,1t1. nwsi,, Exhibit "A" 0 • R. W. THORPE & ASSOCIATES 815 Seattle Tower • 3rd & University • Seattle, Washington 98101 • (206) 624 -6239 Suite 503 • 1110 West Sixth Avenue • Anchorage, Alaska 99503 • (907) 276 -6846 TO Mr. Mark Caughey Associate Planner City of Tukwila 6200 Southcenter Blvd Tukwila, WA 98188 Dear Mark: HEM JUN 21 1982 C. OF TUKWILA ;NNING DEPT. ATE June 17, 1982 UBJECT Tukwila Hilton DEIS As of June 17, 1982, all copies of the Tukwila Hotel Draft EIS have been mailed or delivered to the recipients in said Draft on pages vi and vii. In addition, one copy each was sent to the Greater Renton Chamber of Commerce, Rainier Audubon Society and Department of Energy Region X. Thank you for your direction and responsiveness. Cc)71ruis Sincerely, on Potter JP:rmc STATE OF WASHINGTON ) ss County of King ) On this day personally appeared before me JON POTTER to me known,,tb be the indiVidual described in and who executed the within fore going instrument and purposes therein mentioned. _ Given under my hand and official seal this 17th day of June,:1982. Notary .P uble� in'and for State of Washington 'residing in Seattle TO F R 0 M SUBJECT MESSAGE DATE 7 P.46, 7i- ilida.72 p/ 2 a Ow, .72;9,432--1 si‘ SIGNED REPLY REDTFORM ® 45 472 SIGNED SEND PARTS 1 AND 3 WITH CARBON INTACT - PART 3 WILL BE RETURNED WITH REPLY. DATE / / POLY PAK (50 SETS) 4P472 qtr . Wb Rea) riortc o <Act. (— P-�c- cz°- .---W_V_µ - - -?� 5�'- .sNt3^ou . _uvicac Viz. a / \ Luc rreirt 15-0 2� two, IZ' c,iW� C Ps() FINAL ENVIRONMENTAL IMPACT STATEMENT FOR TUKWILA HOTEL PREPARED BY THE CITY OF TUKWILA PLANNING DEPARTMENT TUKWILA, WASHINGTON WITH THE ASSISTANCE OF R.W. THORPE AND ASSOCIATES, INC. Prepared in Compliance with The State Environmental Policy Act of 1971 Chapter 43.21c, Revised Code of Washington, as amended SEPA Guidelines, Effective January 16, 1976 Chapter 197 -10, Washington Administration Code, as revised City of Tukwila Ordinance Number 1211 November 23, 1982 TABLE OF CONTENTS INTRODUCTION DISTRIBUTION LIST iv LOCATION MAP vi ILLUSTRATION vii.' COMMENT LETTERS: Written Comments and Responses to Comments: 1. United States Department of Army, Corps of Engineers 2. Washington State Department of Ecology 3. Washington State Department of Game 4. Washington State Department of Transportation 5. Puget Sound Air Pollution Control Agency 6. King County Conservation District 7. Municipality of Metropolitan Seattle 8. City of Tukwila Public Works Department Letters Not Requiring Response: 1. Office of Archaeology /Historic Preservation APPENDIX: Traffic Analysis 2 8 10 13 17 19 21 24 27 INTRODUCTION Project Sponsor: Christensen Group, Incorporated 2500 NE Andresen Vancouver, Washington 98661 Nature of Proposal: Development of an 8 story hotel on a 5.47 acre parcel of land. The proposed development includes 274 guest rooms, dining room, cocktail lounge, banquet room, 5 meeting rooms, swimming pool, administrative offices, and parking spaces for up to 509 cars. A pedestrian bridge might be constructed to span the Green River connecting the Hotel to Christensen Trail. Project Location: The 5.47 acre site is located at the southwest quadrant of the West Valley Highway /South 158th Street intersection in Tukwila. Lead Agency: City of Tukwila Planning Department Responsible Official: Brad Collins, Planning Director Planning Department City of Tukwila Contact Person: Mark Caughey City of Tukwila Planning Department City Hall 6200 Southcenter Boulevard Tukwila, Washington 98188 Telephone: (206) 433 1849 Authors and Principal Contributors: This EIS was prepared under the direction of the City of Tukwila Planning Department; research and analyses were provided by the fol- lowing firms: R.W. Thorpe & Associates 815 Seattle Tower Building 3rd & University Seattle, Washington 98101 Telephone: (206) 624 6239 (Contact: R.W. Thorpe) Jensen, Krause and Schoenleber Architects 1962 NW Kearney Portland, Oregon 97209 Telephone: 624 6865 Beighley- Krause, Inc. Landscape Architects 12840 NW Correll Road Portland, OR 97229 Geo -Recon International, LTD Geophysics Archaeology Geology PO Box 55189 Seattle, WA 98155 Kegel & Associates Land Planning, Surveying, and Engineering 12360 NE 8th Bellevue, WA 98005 Kramer - Gehlen Associates, Inc. Consulting Structural Engineers 2712 Washington Street Vancouver, WA 98660 Shannon and Wilson Geotechnical Consultants 1105 N 38th St Seattle, WA 98103 The TRANSPO Group Transportation Engineers 23 148th Avenue SE Bellevue, Washington 98007 Actions, Permits and Licenses Required: Final Plat Approval Board of Architectural Review Approval Shoreline Management Substantial Development Permit Building Permits Hydraulics Permit Flood Control Permit Site Plan Approval Electrical Permits ii Occupancy Permits Sign Permits Grading Permit Flood Control Permit Mechanical Permit Puget Sound Air Pollution Control Agency's "Notice of Construction" and "Notice of Completion" All other permits necessary to construct buildings & improvements proposed on the site. Location of EIS Background Data: R.W. Thorpe and Associates 815 Seattle Tower 3rd and University Seattle, WA 98101 Tukwila Planning Department City of Tukwila City Hall 6200 Southcenter Boulevard Tukwila, WA 98188 Cost to Public of Copies of Final EIS: No cost Date of Issue of Draft EIS: June 17, 1982 Date of Issue of Final EIS: November 23, 1982 NOTICE The distribution of this Final Environmental Impact Statement has exceeded the 75 day time period normally required by the lead agency (City of Tukwila) by section WAC 197 -10 -550 of the SEPA Guidelines. Due to the complexity of the issues pertinent to this project, especially as presented in comments from the WSDOT, and the necessity to fully disclose all impacts and mitigating measures, the City of Tukwila extended the 75 day time period. iii RECIPIENTS OF THIS FINAL ENVIRONMENTAL IMPACT STATEMENT Federal Environmental Protection Agency Department of Housing and Urban Development Army Corps of Engineers, Seattle District Engineer Soils Conservation Service, Department of Agriculture U.S. Department of Interior, Fish and Wildlife Department of Energy, Region X State Governor's Office Office of Program Planning and Fiscal Management Department of Ecology Department of Fisheries Department of Game Department of Transportation Department of Social and Health Services Ecological Commission Office of Archaeology and Historic Preservation Office of Public Archaeology, University of Washington Regional Metro - Water Quality Division Metro - Transit Puget Sound Air Pollution Control Agency Puget Sound Council of Governments Seattle - King County Department of Public Health Local Government King County Department of Public Works, Hydraulics Division King County Building and Land Development Division King County Planning and Community Development Department King County Soil and Water Conservation District City of Kent City of Renton City of Seattle City of Tukwila Mayor City Council Planning Commission Public Works Department Parks and Recreation Department Police Department Fire Department City Attorney SEPA Information Center Finance Department Utilities /Services South Central School District #406 Puget Sound Power and Light Washington Natural Gas Company Pacific Northwest Bell Libraries Tukwila Public Library Renton Public Library - Main Branch University of Washington Library, College of Architecture and Urban Planning King County Public Library Newspapers Seattle Times Seattle Post - Intelligencer Daily Journa -1 of Commerce Renton Record Chronicle Highline Times Private Organizations and Others Tukwila Chamber of Commerce The Greater Renton Chamber of Commerce Rainier Audubon Society v rolb,.. i1 .4.0, Oil 0.,.*-9. *N4ailAitalim., : ,..... .,,.. ‘ Alas -!P ,Niff . iiirhap NPSOMIMIAVAT INIOnific ) Ilit/tr ,m4c1404114i Llosk TW ilipliMaiNCIMPioni 11071MiliginiRkilt&W.1 CC '1481; lir -‘4‘011flip rea_11,_,-4-ia.vAirg\■\mt... 4,4 el -weistg152g. ii..... 2 407.11A.rOslik0h, i iffil..:ZWACKINtl, ) IF 1,'A'AlWAZ-iiri4MoST.4 impur, ;4114 1 taimigovir, , , Essonimgrandul [Amman me. lali i I. 1 i i Ka relitreit - I ttli asetersm-__zi __,, T ',I tioairegbambq /..:Sialwan IT4M- 7 14V W / 5606/ .0,:fir.::::f,Tri...,-, L, „J.:; 7.A rill* rk-Vr."1141."M1411 Ara 6° IC= Ihill . c+-^,: 1 \ •;: ..,,:. r. -m, ; .,...,. ild-ie-L ... 1 tLL., .. :.4 1 FIA,vii t Yffit pol , 1111110 1..71'1. *PI ,.. -•;44$.11414.: . ait, iii$1511;117i)4112:4111111ifP ) raybk- .....:-?...... • A qactIr.r.'es MANNM1110‘, 4)7,..leit q!i.540Y1!: 1V945WP:iNt. .....-- .---At. ,.;,..' 4.'1' .."3.0114)!IrF r' .141R411 011 ,gzir:?4.t 11 U.S.G.S. BASE +1'44000' NORTH 11. LOCATION MAP TUKWILA HOTEL. R.W. THORPE AND ASSOCIATES vi WRITTEN COMMENTS AND RESPONSES TO COMMENTS 1 NPSEN -PL -ER DEPARTMENT OF THE ARMY SEATTLE DISTRICT. CORPS OF ENGINEERS P.O. BOX C -3755 SEATTLE. WASHINGTON 98124 Mr. Mark Caughey Planning Department City of Tukwila 6200 Southcenter Boulevard Tukwila, Washington 98188 311M, LUL 26 198J D C OF TUKWILA ,NNING DEPT. m ; :-.; ' . ^ v. 1 Stin i Dear Mr. Caughey: We have reviewed the draft environmental impact statement (EIS) for the Tukwila Hotel, Tukwila, Washington, with respect to the U.S. Army Corps of Engineers' areas of responsibility for flood control, navigation, and regulatory functions. We have the following comments. a. Please refer to the last paragraph on page 35 and to item 2 under Mitigating Measures on page 37. It is not clear whether interior runoff will be pumped or drained by gravity. b. The EIS states that'existing site is diked • and surface runoff prevented from draining to the Green River (last paragraph on page 35). However, both the preceding paragraph and item 2 under Mitigating Meas- ures on page 37 state that surface water will be drained to the Green River at the same rate as presently exists. This inconsistency should be resolved. c. There is no discussion of the engineering involved in designing the interior drainage system. Some assurance should be provided that the plan will function if the Green River is at maximum controlled flow and the design interior storm occurs at the same time. d. Please refer to figure 6 on page 28 and figure 7 on page 36. We recommend deleting the note on these figures. With respect to the Corps of Engineers' storm water discharge policy, the notes are misleading. To clarify the basis for this recommendation, a copy of a recent letter we sent to Ring County is attached (inclosure 1). This letter describes our authority to manage water resources within the Green River Basin. e. Please refer to page 35, second paragraph, fifth line. Elevation should be 24.2 feet instead of 25.8 feet. p F.- E ,19 r, 17,, R r: 1 A !-71, 't.„4-` Ci Lu •• I Y 4 ,U e.. EMI \A tl SUBJECT O RL V ; aid 1 NPSEN -PL -ER Mr. Mark Caughey f. There is a flood danger to individuals using the basement because the floor is proposed at elevation 19 feet, which is about 5 feet below the maximum flood level. We recommend the city of Tukwila develop flood warning procedures to notify the hotel management that a flood danger could exist to occupants and contents in the basement. Although this flood threat is remote, a warning system should be developed to assure safety of hotel occupants. g. The pedestrian bridge, which may be constructed to span the Green River, should be clear span to prevent obstruction to floodflows and potential collection point for debris. h. The project area would be inundated by a basin wide standard project flood. Thank you for the opportunity to review this statement. If you have any questions regarding our comments, please contact Dr. Steven F. Dice, telephone (206) 764 -3624, of my staff. PREUL,„ „.„ SUBJECT TO RE ISi 11 1 Incl As stated Sincerely, PR'llmm"Y .c: SUBJECT TO REVISION . EPSEN -PL -FE DEPARTMENT OF THE ARMY SEATTLE DISTRICT. CORPS OF ENGINEERS P.O. BOX C -3755 SEATTLE. WASHINGTON 98124 2 9 APR 1982 James W. Guenther, Director Ling County bepartment of Public Works 900 Ling County Administration Building 500 Fourth Avenue Seattle, Washington 98104 Dear Hr. Guenther: Please excuse our delay in responding to your 22 October 1981 letter regard- ing the pumping of local drainage into the Green liver. We have been waiting for the completion of-local inflow studies for the Green River flood damage reduction study. In your letter, two points were raised which require clar- ification: (1) the accommodation of 400 cubic feet per second (c.f.i.) pumping into the Green liver from the Soil Conservation Service's eastside project and (2) the U.S. Army Corps of Engineers' authority to manage water resources within the basin. The Seattle District must continue to operate Howard A. Hanson Dam project, as authorized by Congress, to control the Creen liver flow to 12,000 c.f.s. at the Auburn gage. Any coincidental discharge from the Black River pumping plant or other facilities will increase flooding in nnleveed areas and increase the probability of overtopping and /nor failure of existing levees. We concur with you that the Corps of Engineers has a commitment to flood control in the Green River basin; however, our authority does not extend beyond the operation of Howard A. Hanson Dam. We do not have authority to regulate the water resource activities and land -use planning of local govern- ments in the Creen River basin. We will continue to monitor the Green River water levels at Auburn and will notify Ling County when the flow at Auburn is expected to exceed 5,000 c.f.s. Our ongoing flood damage reduction study will define those reaches of the lower Green River wLere levee improvements can be justified. We will provide Ling County available hydrologic data on the Creen River system as dia ..�': :•: .... • RPSEN -PL -FR James W. Guenther, Director input for the county's basin vater.management plan. If you have any ques- tions, please contact Ms. Linda Smith, Study Manager, at telephone (206) 764-3620. • Copy furnished: Lynn Brown, Acting State Conservationist Soil Conservation Service, loom 360 D.S. Courthouse Spokane, Washington 99201 .Harold Robertson. Manager Planning Division Ling County Courthouse, W217 Seattle, Washington 98104 Mr. Wes Edens Federal Emergency Management Administration 130 228th Street Southvest Bothell, Washington 98011 Sincerely, R.P. SELLEVOLD, P.E. Chief, Enginee, ing Division Responses to Comments from the United States Department of the Army, Corps of Engineers Comment Number: 1 Comment noted. The last paragraph of page 35 of the DEIS is hereby amended as follows: "Since the site has previously been diked, surface water was partially prevented from draining into the River, resulting in periodic on -site flooding. The proposed development will decrease this potential by releasing surface drainage water into the river. A gravity flow system is designed to discharge stormwater at the same rate as the existing discharge rate. A sump pump will be used to drain stormwater from the loading dock area located at the north side of the building to the gravity flow drainage system. Although this drainage system will be designed in accordance with city regulations, the system could contribute marginally to peak river flows due to the runoff from impervious surfaces. Although the level of the river is controlled at Howard Hansen Dam, minor uncontrollable fluctuations in river flow could contribute to minor streambank erosion downstream from the system outfall." Comment Number: 2 Correction noted. Paragraph 1 on page 35 of the DEIS is hereby amended as follows: "The subject property is adjacent to the Green River. Man -made dikes protect the site and general vicinity from flooding from the Green River. However, due to the dikes, internal drainage is somewhat restricted from flowing into the river. Resultant drainage follows three courses: some flows northerly to the adjacent property, some percolates into the groundwater. and some drains directly into the Green River." (Also, please refer to response to Comment Number 1 for the Department of Army, Corps of Engineers) Item 2 under Mitigating Measures on page 37 of the DEIS is correct in stating "The gravity flow system is designed to discharge stormwater into the Green River at the same rate as the existing discharge rate." Comment Number: 3 Comment noted. Mitigating Measures on page 37 and page 5 are hereby amended to include the following: "A one -way gate valve will be installed at the outfall of the stormwater control system in order to prevent water backing up into the site's drainage facility from the Green River during periods of maximum controlled flow." 6 Comment Number: 4 Correction noted. Figures 6 and 7 of the DEIS are hereby amended. The notes on said graphics are deleted. Please refer to the following Storm - water Drainage and Grading Plan. Comment Number: 5 Correction noted. Line 5, second paragraph on page 35 of the DEIS is hereby amended as follows: "The maximum flood stage of the river at the site has been determined by the Army Corps of Engineers to be at elevation aa feet." Comment Number: 6 The basement is designed for storage, laundry facilities, mechanical room and meeting rooms. Mitigating Measures, pages 37 and 5, are hereby amended to include the following: "The City of Tukwila could develop a flood warning procedure to notify the hotel management that a flood danger could exist to occupants and contents of the basement during peak flows of the Green River. At the time such warning is received, the Hotel would require closure of the basement." Comment Number: 7 Comment noted. Should the pedestrian bridge be constructed, permits shall be obtained from the Army Corps of Engineers prior to construction to insure adequate structural clearance above design flood flows. Comment Number: 8 Comment noted. Impacts on page 35 is hereby amended to include the following: "Portions of the Green River Basin, including the site, would be inundated by a basin wide standard project flood." 7 J tU - I I•J ///r l am. Ira AY If 10 , la' zoo / 1 z I •I I/ nr• an /1V ••M I' a1• Hal AV I •211 Rif JIM 1 _ J ••••F! f/ 11 IA11•14. At AM Nf MM r MY 10 JPI 1,1 ./51 KEGEL & ASSOCIATES INC. b _ er-' LAND PT AN NING ENGINEERING & SURVEYING 1 / /A/JN f' NOW WV 1/00 • •••• • 'Aire /Mr ~JW 1a! /iYf.W d w,yt. r .100/1 ; "MY •00 r•• r•11 I�OI JG•l WV JIM LAW O' I••••• 1611 • A/IT nV UD MY JIM f • anttV n /vt/I LEGEND - / V.1•1 (Awl • /11p•YR,' •••••• — - -- '!/err IV JYlr//W1 r Ave, ••• !PI. .010 a1 l- s'•••• /RO a* •1/ R6LI 0I I1/1!%0 T -0 nAnv tlrroal - -• •TM• al /,M1 ."..L'��'_ t /$• 1O1 a1- N ova two •V111CJII l w,r IV11111 W,. 00104 1I111VU 04101 111.»1 • v 1111IVOI.w,. 1MMIS 1/061611 nn "701 na1 n• iiil` • R/11 STORM WATER DRAINAGE AND GRADING PLAN Iw •w Tukwila Hotel Sid 11 0 03 4 I 141 00. 13240 JOHN SPELLMAN Governor STATE OF WASHINGTON DEPARTMENT OF ECOLOGY Mail Stop PV -11 • Olympia, Washington 98504 • (206) 459-6000 July 19, 1982 Mr. Mark Caughey City of Tukwila Planning Department 6200 Southcenter Boulevard Tukwila, Washington 98188 Dear Mr. Caughey: DONALD W. MOOS Director Thank you for the opportunity to review the draft environmental impact statement for the Tukwika Hotel. As noted in the EIS, a flood control zone permit is required from the Department of Ecology. An application should be submitted to the Department of Ecology, Northwest Regional Office, 4350 - 150th Avenue, NE, Redmond, Washington 98052. If you have any questions, please call Mr. Herman Huggins, Northwest Regional Office, at 885 -1900. BJR:lc cc: Herman Huggins Sincerely, Barbara J. R.tchie Environmental Review Section Response to Comments from Washington State Department of Ecology Comment Number: 1 A State Flood Control Zone Permit application was submitted to the King County Surface Water Management Division May 24th, 1982, per the instruc- tions provided in the "Procedure for Filing State Flood Control Zone Appli- cations." Permit processing has not been completed at this time. 9 JOHN SPELLMAN Governor STATE OF WASHINGTON DEPARTMENT OF GAME 600 North Capitol Way, G/ -11 • Olympia, Washington 98504 • (206) 753 -5700 July 27, 1982 Mark Caughey City of Tukwila Planning Department City Hall 6200 Southcenter Boulevard Tukwila, Washington 98188 •Dear Mr. Caughey: FRANK LOCKARD Director DRAFT ENVIRONMENTAL IMPACT STATEMENT: Tukwila Hotel Your document was reviewed by our staff as requested; our comments follow. The riparian buffer zone proposed along the Green River is inadequate to protect water quality and streamside habitat. A buffer zone does not fulfill its functions if major construction such as dikes and a fire access road is done within it. We recommend a minimum undisturbed buffer of 100 feet along the Green River at the project site. Dikes and the fire access road should be constructed outside this buffer. Areas disturbed from construction of the storm water outlet should be revegetated with native plant species. Our specific comments on the EIS are: Page 19, paragraph 5; page 20, paragraph 6. The proposed development does not conform with the Shoreline Management Program described in Appendix D. An eight -story hotel building within 100 feet of the river does not meet the use regulation that no structures exceeding 35 feet in height be built within the Low Impact Zone (Appendix D, page 6.4). Page 38, paragraph 4. A maintenance schedule for the oil /water separators should be specified prior to approval of the storm water drainage plans by the city of Tukwila. 'Page 43, paragraph 1. Past reductions in wildlife habitat make the remaining habitat all the more important. Pages 43 -44, Fish." This section presents good information on the existing fish resources of the Green River. However, the project as proposed will impact fish habitat along the Green River. The decrease 3 l J 1 2 = 4 5 Mark Caughey July 27, 1982 Page Two in quality of site runoff plus the lack of an adequate riparian buffer will degrade the aquatic habitat and impact the fish resource. Thank you for sending us your document. We hope you find our comments helpful. BW:cv cc: . Agencies Region Sincerely, THE DEPARTMENT OF GAME Betsy Wolin, Applied Ecologist Environmental Affairs Program Habitat Management Division • 11 5 Responses to Comments from Washington State Department of Game Comment Number: 1 The dike is planned to be reconstructed at its existing location. The planned dike location and fire access road are in conformance with the Shoreline Master Program for,the City of Tukwila. (Please refer to Appendix D of the DEIS.) It is acknowledged that construction of the dike and fire access road will impact understory vegetation along the river (please refer to Impacts, page 42 of the DEIS) which may degrade the quality of habitat (please refer to Impacts, page 44 of the DEIS). However, indigenous trees of significant growth along the river bank will be retained, and understory vegetation damaged in the course of construction will be restored in accordance with the standards contained in the Tukwila Shoreline Zone (TMC.18.44.130 lc) Comment Number: 2 The proposed development does conform with the City of Tukwila Shoreline Management Program. (Please refer to Appendix D of the DEIS). The 8 -story portion of the hotel is located beyond the 100 foot "Low Impact Zone." That portion of the hotel which is within the "Low Impact Zone" does not exceed 35 feet in height. Comment Number: 3 The City of Tukwila Public Works Department presently does not have a policy for insuring a maintenance schedule of oil /water separators. However, under RCW 90.48 "Water Pollution Control," no oil discharge is permitted in State waters. In the event a complaint is filed in regard to a problem with pollution, the Department of Ecology would intervene and insure the problem is rectified, should the City of Tukwila fail to. Comment Number: 4 Comment noted. Generally, this statement is true. However, the site presently does not support rare or unique wildlife habitat. (Please refer to Existing Conditions, page 43 of the DEIS.) Potential degradation of the river habitat is noted extensively. (Please refer to Impacts and Mitigat- ing Measures, page 44 of the DEIS.) Comment Number: 5 Comment noted. Impacts on fish habitat are acknowledged. (Please refer to Impacts, page 44 of the DEIS.) 12 JOHN SPELLMAN Governor STATE OF WASHINGTON DEPARTMENT OF TRANSPORTATION Office of District Administrator • 0-1, 6431 Corson Ave. So., C -81410 • Seattle, Washington 98708 July 23, 1982 Mr. Mark Caughey City of Tukwila Planning Department City Hall 6200 Southcenter Boulevard Tukwila, WA 98188 Dear Mr. Caughey: DUANE BERENTSON • Secretary MMOCEM JUL 2 3 1982j L — GFT JKWiLA DEPT. SR 181 City of Tukwila DEIS Review Tukwila Hotel (K -434) We have reviewed the above noted document and due to the projected traffic volumes generated by this project, mitigation will be re- quired as follows: 1. The projected traffic volumes indicate a traffic signal is warranted at the intersection of SR 181 and S. 158th Street. 1 This signal system must be coordinated with emergency pre- emption. 2. The installation of a signal will severely add to Longacres peak traffic hour problems. To resolve this problem, two 2 southbound left turn lanes will be required to improve the level of service. 3. A southbound deceleration right turn lane into the Hotel may be required. J 4. The above noted mitigation items necessitate the modification, of the existing illumination system. . 5. Additional highway right of way will be necessary to accornrodat the required traffic mitigation measures. ) 5 None of the above items are contained within this department's cur- rent operating budget; therefore, funding of these mitigating mea- sures will have to come from other sources. Mr. Mark Caughey July 23, 1982 Page Two Thank you for the opportunity to review this proposal. If you have any questions regarding this matter, please call me at 764 -4356. PRL:dp Very truly yours, J. D. ZIRKLE, P.E. District Administrator HAROLD L. MORGAN, V.E. Acting Design Engineer 14 Responses to Comments from Washington State Department of Transportation (Please refer to Appendix of this document, Traffic Analysis) Comment Number: 1 In response to the WSDOT July 23 comment regarding the need for a traffic signal, one must compare the traffic volume shown against the warrant outline in the Manual on Uniform Traffic Control Devices (MUTCD), and must consider the WSDOT policy regarding interpretation of these warrants. For background, it has been the standing policy of the WSDOT not to issue a signal permit for construction of a traffic signal on a state highway if only Warrant 2 (the interruption of continuous traffic warrant) was satis- fied. Traditionally, WSDOT requires that either the minimum volume warrant or one of the other volume or traffic safety warrants must be met in order to justify construction of a traffic signal. The warrants outlined in the manual on uniform traffic control devices require that average daily traffic volumes be used as a basis for satis- fying the traffic signal warrants. For the purpose of the analysis pre- pared in our traffic report, we assumed the condition with Longacres in operation even though this condition exists less than half the year. Under this condition, none of the warrants outlined in the Manual on Uniform Traffic Control Devices are satisfied. Even Warrant 8, combination war- rant, although very close to minimum criteria, does not satisfy warrants. In the event this warrant were satisfied, two factors should be kept in perspective: 1. A signal should not be installed under this warrant alone unless, "Adequate trial of other remedial measures which cause less delay and inconvenience to traffic" preceed such installation" (MUTCD -Page 4C -7) 2. If a signal is warranted after these trial measures are proven ineffective, the costs thereof should be borne by benefitting property owners in pro- portion to their contribution to total traffic volumes that exist during those hours when traffic signal warrants are satisfied, assuming WSDOT does not have the resources to provide the improvements. Comment Number: 2 As the WSDOT letter points out, the installation of the traffic signal could have a significant adverse impact on peak traffic conditions at the S. 158th St./West Valley Highway intersection which may in turn impact properties and businesses in the vicinity, including Longacres and the Tukwila Hotel. This is one reason why installation of a traffic signal was not recommended as a mitigation strategy for the hotel project. The addition of southbound left - turn lanes, as suggested, is only one of many optional capacity- improvement features which could be explored in the context of any future signal /intersec- tion design,, and is not necessarily the optimal solution at this time. 15 Comment Number: 3 The need for a southbound deceleration right -turn lane into the hotel does not appear warranted based on the traffic volumes that are forecasted to be gene- rated by this project. Because the hotel traffic demand is spread out over the entire day, there are not the typical peak surges in traffic volume that are typically generated by other land uses like office or residential devel- opment. Moreover, the peak traffic flow in the evening peak hour is north- bound on West Valley Highway, while the peak flow into this hotel is expected to be split evenly by traffic traveling northbound and southbound on West Valley Highway. Comment Number: 4 At such time as a traffic signal system is warranted, it seems only reasonable that the existing illumination system be upgraded. Any additional right -of- way which might be necessary to accommodate the improvements associated with a traffic signal and any additional turn lanes could be incorporated as part of the costs of that improvement. Like costs associated with the traffic signal, these right -of -way costs should be distributed in proportion to the traffic volumes that will utilize the intersection. Comment Number: 5 Comment noted. 16 SERVING: KING COUNTY 200 West Mercer St. P.O. Box 9863 Seattle. 98109 (206) 344.7330 KITSAP COUNTY Dial Operator for Toll Free Number Zenith 8385 Bainbridge Island Residents Dial 344-7330 PIERCE COUNTY 213 Hess Bwfding Tacoma. 98402 (206) 383.5851 SNOHOMISH COUNTY (206) 259-0288 BOARD OF DIRECTORS HNONIN JUL 231982 C OF TUKWILA .NNJNG DEPT. Mr. Mark Caughey City of Tukwila Planning Department City Hall 6200 Southcenter Boulevard Tukwila, WA 98188 Dear Mr. Caughey: 200 West Mercer Street, Room 205, P.O. Box 9863 Seattle, Washington 98109 (206) 344-7330 July 22, 1982 Tukwila Hotel The following comments are subn>itted in response to the draft environmental impact statement for the Tukwila Hotel. The proponent should be encouraged to implement the first three mitigating measures under "Air Quality" listed on page 4 and on page 34. Mitigating measure number 4 (on page 5 and on page 34) states:. "See Public Transpor- tation - impacts related to 'Traffic', page 65." Yet on page 65 there are no mitigating neasures listed under either section c - Transportation S stems or section d - Movement and /or Circulation of People and Goods. should be clarified.. On page iv, under Actions,'Permats and Licenses Required, the Puget Sound Air Pollution Control Agency should be added, since it is probable that the proposed hotel. may have fuel - burning equipment, an incinerator, paint spray booth, gasoline storage.tank or other equipment that requires approval under this Agency's Notice of Construction program. On page 33, the last sentence in paragraph 4 under impact, could be reworded' as follows: "Furthermore, as mare stringent federal motor. vehicle emission controls and the Washington State vehicle emission inspection and maintenance program take effect, there could be an overall decline in vehicle- related pollutants." J Thank you for the opportunity to comment. sj CHAIRMAN: Gene Lobe. Commissioner Kitsao County: Joe Slortinl. Councilman for Booth Gardner. Piece County Executive: Ooug Sutneriano. Mayor Tacoma Very truly yo a Arthur R. BA .ehler Air Pollution Control Officer James B. Haines. Councilman Snonomish County: Randy Reveee, King County Executive: Charles Royer, Mayor Seattle 17 William E. Moore. Mayor Everett: 1 2 3 VICE CHAIRMAN: Harvey 5. Poll. Member at Largr Gene Nelson. Mayor Bremenbr A. R. Dammkoenfer, Air Pollution Control Office Responses to Comments from Puget Sound Air Pollution Control Agency Comment Number: 1 Comment noted. Comment Number: 2 Correction noted. Mitigating Measure number 4 under Air Quality, pages 5 and 34 of the Draft EIS, is hereby deleted. Comment Number: 3 Correction noted. Actions; Permits; and Licenses Required is hereby amended to include Puget Sound Air Pollution Control's "Notice of Construction," and "Notice of Completion." Comment Number: 4 Comment noted. Impact number 4 under Air Quality, page 33 of the Draft EIS, is hereby amended as follows: "Based on the 'Simplified Analysis Technique for Establishing Carbon Monoxide Concentrations Near Highway Facilities,' the maxi- mum levels of carbon monoxide during the peak traffic movement hour created solely by the proposed project will add approximately 1.1 ppm of carbon monoxide to the existing levels. Levels will decrease with wind speeds in excess of 2 mph and with distance from Southcenter. Cumulatively, carbon monoxide levels will be significantly less than the 1 hour maximum standard of 35 ppm. Furthermore, as more stringent federal motor vehicle emission controls and the Washington State Vehicle Emission Inspection and Maintenance Program take effect, there could be an overall decline in vehicle - related pollutants." 18 King County Conservation District 35 SOUTH GRADY WAY RENTON, WASHINGTON 98055 REM) JUN 28 1982 C OF TUKWILA PLANNING DEPT. Ju Mr. Mark Caughey City of Tukwila Planning Dept. Tukwila City:Hall 6200 Southceriter Blvd. Tukwila, WA. 98188 Re. Tukwila Hotel DEIS Dear Mr. Caughey: 24, 1982 We have reviewed the Tukwila Hotel DEIS and find it thoroughly addresses our concerns. We recommend that the King County Conservation District review the Temporary Erosion - Sedimentation Control Plan (TESCP) to check the adequacy of this plan to assure that clean water enters the Green River. cc: file Sincerely, ,eZ.--;;77 Robert T. Gavenda Water Quality Planner 19 CONSERVATION - DEVELOPMENT - SELF- GOVERNMENT Response to Comments from King County Conservation District Comment Number: 1 The temporary erosion /sedimentation control plan will most likely be submitted along with the site grading and utility infrastructure drawings at the construction permit review stage. The temporary Erosion /Sedimenta- tion Control Plan will be referred to the King County Conservation District for review and comment. 20 ng; Municipality of Metropolitan Seattle Pa h' Po Exchange Bldg. • 821 Second Ave., Seattle, Washington 98104 July 20, 1982 Mark Caughey City of Tukwila Planning Department City Hall 6200 Southcenter Boulevard Tukwila, Washington 98188 Draft Environmental Impact Statement Tukwila Hotel Dear Mr. Caughey: LJUL 22 1982 p_.NNNr~ LA G DEPT, Metro staff has reviewed the proposal and offers the following comments. Wastewater Facilities We note the proposal is within Metro's Renton treatment plant service area. Metro has prepared a facilities plan for the Renton system with a grant froth DOE and EPA, in part because the Renton treatment plant has reached "design" capacity and,continued development is occurring within the service area. A final plan for the Renton service area was adopted by the Metro Council in November 1981 and contains a recommended;program for upgrading the Renton system so that water quality and health will con- tinue to be protected. The plan calls for these improve- ments to be on line in the summer of 1986. Water Quality In order to maintain water quality, all mitigating measures included on pages 26, 37 and 38 should be implemented. In addition, an oil /water separator should be included in the design of the stormwater detention system. The drainage/ detention system must be maintained on a regular schedule to be effective. This schedule should be developed with the proponent committed to implementation. Mitigating measures for water resource impacts (p. 37) include straw bales as a primary temporary erosion control technique. Use of this technique has not proven effective in all cases. We recommend that the proponent consult with the King County Conservation District for advice on designing and implementing an effective erosion and sedi- mentation control plan. y.. 21 Mark Caughey DEIS /Tukwila Hotel July 20, 1982 Page two Construction and Water Quality (available from King County) is a good reference manual for several techniques and specific applications effective in protecting water quality in the Seattle -King County region. Transportation Excellent peak -hour bus service is available along West Valley Road to and from downtown Seattle. It is likely that some hotel guests might wish to use this service if it were accessible. A raised sidewalk should be provided to connect the hotel to this road in order to provide a safe walkway through the parking lot. Proponents should consult with Chuck Gehrts, Metro Transit Planner, at 447 -6367, concerning bus -stop locations prior to commencing construction. The construction of the pedestrian bridge over the Green River would offer the opportunity for hotel guests to walk to major attractions on the west side of the river, perhaps resulting in some small reduction in auto traffic and congestion otherwise resulting from this project. Thank you for the opportunity to review and comment. Very truly yours, Rodney G. Proctor, Manager Environmental Planning Division RGP:ssj 22 1 Response to Comments from Municipality of Metropolitan Seattle Comment Number: 1 Comment noted. Comment Number: 2 Comment noted. Comment Number: 3 Comment noted. Mitigating Measure number 2, page 38 of the DEIS, is hereby amended as follows: "Oil/water separators will be utilized to remove petroleum pro- ducts from catch basins and screens will be included in the storm - water system (including the drainage detention system) to collect litter and debris. The hotel will shade the parking lot at cer- tain times of the day, which will help reduce runoff water tem- perature. Cleaning of parking areas shall be undertaken whenever necessary." Comment Number: 4 Please refer to response to comment number 3 from Washington State Department of Game, page 12 of this FEIS. Comment Number: 5 Comment noted. Comment Number: 6 Comment noted. Comment Number: 7 The availability of transit service on the West Valley Road corridor is noted; however, the proponent anticipates that public transportation patronage by hotel guests and employees will be minimal. The suggested provision of a designated pedestrian crossing path through the hotel parking lot from the highway frontage is indeed valid, although a "raised sidewalk" is not compatible with the project's internal circulation pattern. Alternative pedestrian path designation techniques (at grade) will be evaluated during the construction permit review phase. Comment Number: 8 Comment noted. 23 LSUBJECT MESSAGE 74'- 1 its 1.2efiZZ.e...` otdc;c4.47- 4/,i;: G Z4'L/ T/ 1Z-4 O- 7Z 2. 1 7l w 7,Zt,s, . REPLY • REDTFORM ® 4S 472 SIGNED SEND PARTS 1 AND 3 WITH CARBON INTACT PART 3 WILL BE RETURNED WITH REPLY. DATE POLY PAK (50 SETS) 4P472 Response to Comments from City of Tukwila Public Works Department Comment Number: 1 The site is inside the Independent Water District boundaries. An agreement will need to be reached between the City, Independent Water District, and project proponent to establish the availability and adequacy of water service. 25 LETTERS NOT REQUIRING RESPONSE 26 JOHN SPELLMAN Governor STATE OF WASHINGTON OFFICE OF ARCHAEOLOGY AND HISTORIC PRESERVATION 111 West Twentyfrst Avenue, KL -11 • Olympia, Washington 98504 • (206) 753 -4011 L June 23, 1982 Mr. Mark Caughey City of Tukwila Planning Department City Hall - 6200 Southcenter Boulevard Tukwila, Washington 98188 IACOB THOMAS Director JUN 2 8 1982 C:TY OF TUKWILA PLANNING DEPT. RE: 323- C -KI -10 Tukwila Hotel -DEIS Dear Mr. Caughey: A staff review has been completed of your draft environmental impact statement. The document exhibits a well considered concern for the cultural environment. The document adequately considers known and anticipated cultural resources and the potential for impact to these. We concur with the consultant's recommendation that professional monitoring be conducted of the project activities. Thank you for your consideration of our cultural heritage. and Sincerely, Robert G. Whitlam, Ph.D. Archaeologist APPENDIX Traffic Analysis Transportation Engineering & Planning Consultants September 25, 1982 Jon Potter R. W. Thorpe and Associates 815 Seattle Tower 3rd and University Seattle, WA. 98101 SUBJECT: TUKWILA HOTEL EIS Dear Mr. Potter: This letter responds to the September 7 request of Mr. Mark Caughey, associate planner, city of Tukwila, regarding the need for a quantative response to the state department of transportation (WDOT) July 23, 1982 comment on the draft environmental impact statement. Attached please find a summary of hourly traffic volumes at the South 158th Street /West Valley Highway intersection. These volumes had been developed using WSDOT traffic counts along roads feeding into the site, manual traffic counts made by The TRANSPO Group, and estimates of projected demand volumes for the new hotel made by the Transpo Group. These summaries show traffic volume conditions with and without Longacres in operation. We have also attached a summary of the signal warrant checks that form the basis of our conclusions. In response to the WSDOT July 23 comment regarding the need for a traffic signal one must compare the traffic volume shown against the warrant outline in the Manual on Uniform Traffic Control Devices (MUTCD), and must consider the WSDOT policy regarding interpretation of these warrants. For background, it has been the standing policy of the WSDOT not to issue a signal permit for construction of a traffic signal on a state highway if only Warrant 2 (the interruption of continuous traffic warrant) was satisfied. Traditionally WSDOT requires that either the minimum volume warrant or one of the other volume or traffic safety warrants must be met in order to justify construction of a traffic signal. The warrants outlined in the manual on uniform traffic control devices require that average daily traffic volumes be used as a basis for satisfying the traffic signal warrants. For the purpose of the analysis prepared in our traffic report we assumed the condition with Longacres in operation even though this condition exists less than half the year. Under this condition none of the warrants outlined in the Manual on Uniform Traffic Control Devices are satisfied. Even Warrant 8, combination warrant, although very close to minimum criteria, does not satisfy warrants. In the event this warrant were satisfied, two factors should be kept in perspective: The TRANSPO Group, Inc. • 23 -148th Avenue SE, Bellevue, Washington 98007 • (206) 641 -3881 TRANSFO Gro \ip 1. A signal should not be installed under this warrant alone unless, "Adequate trial of other remedial measures which cause less delay and inconvenience to traffic" preceed such installation" (MUTCD- Page 4C -7) 2. If a signal is still warranted after these trial measures are proven ineffective it will be triggered by the volumes generated by prop- erties located east of West Valley Highway using S. 158th Street. Thus any costs should be borne by those property owners in whole or in proportion to the traffic volumes that exist during those hours when traffic signal warrants are satisfied, assuming WSDOT does not have the resources to provide the improvements. As the WSDOT letter points out, the installation of the traffic signal could have significant impact on the peak traffic conditions that are generated by Longacres and could require an additional southbound left turn lane to improve the level of service. This is exactly one of the reasons we did not recom- mend installation of a traffic signal. Again, the volume that warrants addi- tional turn lane capacity is being generated by properties east of West Valley Highway and thus the costs should be borne by these property owners. The need for a southbound deceleration right turn lane into the hotel is not warranted based on the traffic volumes that are forecasted to be generated by this project. Because the hotel traffic demand is spread out over the entire day, there are not the typical peak surges in traffic volume that are typic- ally generated by other land uses like office or residential development. Moreover, the peak traffic flow in the evening peak hour is northbound on West Valley Highway, while the peak flow into this hotel is expected to be split evenly by traffic traveling northbound and southbound on West Valley Highway. At such time as a traffic signal system is warranted, it seems only reason- able that the existing illumination system be upgraded. Any additional right - of -way might be necessary to accommodate the improvements associated with a traffic signal and any additional turn lanes could be incorporated as part of the costs of that improvement, Like costs associated with the traffic signal, the right -of -way costs should be distributed in proportion to the traffic volumes that will utilize the intersection. I trust this summary of our analysis and the attached traffic volume forcasts provide Mr. Caughey with the information he needs to approve issuance of the Final Invironmental Impact Statement for the Tukwila Hotel project. If you or he have any questions regarding our analysis I encourage you to call me at your convenience. Sincerely, The TRANSPO Group, Inc. David D. Markley,J.)/ Principal attachment • WM t psm.... • • um • •irVIR2160. 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The The TitA1VSP%0 @ro�r rove • FIITAL ENVIRONMENTAL IMPACT STATEMENT FOR TUKWILA HOTEL PREPARED BY THE CITY OF TUKWILA PLANNING DEPARTMENT TUKWILA, WASHINGTON WITH THE ASSISTANCE OF R.W. THORPE AND ASSOCIATES, INC. Prepared in Compliance with The State Environmental Policy Act of 1971 Chapter 43.21c, Revised Code of Washington, as amended SEPA Guidelines, Effective January 16, 1976 Chapter 197 -10, Washington Administration Code, as revised City of Tukwila Ordinance Number 1211 August , 1982 TABLE OF CONTENTS INTRODUCTION 1 DISTRIBUTION LIST iv LOCATION MAP v ILLUSTRATION vi COt• MENT LETTERS: Written Comments and Responses to Comments: 1. United States Department of Army, Corps of Engineers 2 2. Washington State Department of Ecology • 8 3. Washington State Department of Game 10 4. Washington State Department of Transportation 13 5. Puget Sound Air Pollution Control Agency 16 6. King County Conservation District 18 7. Municipality of Metropolitan Seattle 20 8. City of Tukwila Public Works Department 23 Letters Not Requiring Response: 1. Office of Archaeology /Historic Preservation 26 • 1 INTRODUCTION Project Sponsor: Christensen Group, Incorporated 2500 NE Andresen Vancouver, Washington 98661 Nature of Proposal: Development of an 8 story hotel on a 5.47 acre parcel of land. The proposed development includes 274 guest rooms, dining room, cocktail lounge, banquet room, 5 meeting rooms, swimming pool, administrative offices, and parking spaces for up to 509 cars. A pedestrian bridge might be constructed to span the Green River connecting the Hotel to Christensen Trail. Project Location: The 5.47 acre site is located at the southwest quadrant of the West Valley Highway /South 158th Street intersection in Tukwila. Lead Agency: City of Tukwila Planning Department Responsible Official: Brad Collins, Planning Director Planning Department City of Tukwila Contact Person: Mark Caughey City of Tukwila Planning Department City Hall 6200 Southcenter Boulevard Tukwila, Washington 98188 Telephone: (206) 433 1849 Authors and Principal Contributors: This EIS was prepared under the direction of the City of Tukwila Planning Department; research and analyses were provided by the fol- lowing firms: R.W. Thorpe & Associates 815 Seattle Tower Building 3rd & University Seattle, Washington 98101 Telephone: (206) 624 6239 (Contact: R.W. Thorpe) Location of EIS Background Data: R.W. Thorpe & Associates 815 Seattle Tower 3rd & University Seattle, Washington 98101 Tukwila Planning Department City of Tukwila City Hall 6200 Southcenter Boulevard Tukwila, Washington 98188 Cost to Public of Copies of Draft EIS: Date of Issue of Draft EIS: June 17, 1982 Date of Issue of Final EIS: WRITTEN COFINENTS AND RESPONSES TO COlRIENTS NPSEN -PL -ER _ C.. *DEPARTMENT OF THE AR* ATTLE DISTRICT. CORPS OF ENGIN S P.O. BOX C -3755 SEATTLE. WASHINGTON 9B124 Mr. Mark Caughey Planning Department City of Tukwila 6200 Southcenter Boulevard Tukwila, Washington 98188 Dear Mr. Caughey: Ut] U U L lJ JUL 26 1982 C OF TUKWILA ,NNING DEPT. c 57.1 We have reviewed the draft environmental impact statement (EIS) for the Tukwila Hotel, Tukwila, Washington, with respect to the U.S. Army Corps of Engineers' areas of responsibility for flood control, navigation, and regulatory functions. We have the following comments. a. Please refer to the last paragraph on page 35 and to item 2 under Mitigating Measures on page 37. It is not clear whether interior runoff will be pumped or drained by gravity. b. The EIS states that'existing site is diked 'and surface runoff Page prevented from draining to the Green River (last paragraph on age 35). However, both the preceding paragraph and item 2 under Mitigating Meas- ures on page 37 state that surface water will be drained to the Green River at the same rate as presently exists. This inconsistency should be resolved. c. There is no discussion of the engineering involved in designing the interior drainage system. Some assurance should be provided that the plan will function if the Green River is at maximum controlled flow and the design interior storm occurs at the same time. w d. Please refer to figure 6 on page 28 and figure 7 on page 36. We recommend deleting the note on these figures. With respect to the Corps of Engineers' storm water discharge policy, the notes are misleading. To clarify the basis for this recommendation, a copy of a recent letter we sent to King County is attached (inclosure 1). This letter describes our authority to manage water resources within the Green River Basin. e. Please refer to page 35, second paragraph, fifth line. Elevation should be 24.2 feet instead of 25.8 feet. pp F: ril /..-1.: r: r 7 fAx, 7:-.) i ... [±!, 11_ I.: v ?,, E ‘,.; ,:-.-a : ii 2 2 4 ' NPSEN -PL-ER Mr. Mark Caughey f. There is a flood danger to individuals using the basement because the floor is proposed at elevation 19 feet, which is about 5 feet below the maximum flood level. We recommend the city of Tukwila develop flood warning procedures to notify the hotel management that a flood danger could exist to occupants and contents in the basement. Although this flood threat is remote, a warning system should be developed to assure safety of hotel occupants. g. The pedestrian bridge, which may be constructed to span the Green River, should be clear span to prevent obstruction to floodflows and potential collection point for debris. h. The project area would be inundated by a basin wide standard project flood. Thank you for the opportunity to review this statement. If you have any questions regarding our comments, please contact Dr. Steven F. Dice, telephone (206) 764 -3624, of my staff. p7F, zi 74. (1, SUBJEC • REVS ON. 1 Incl As stated Sincerely, kzo ;54 S GSECT TO R V 1SiON • 3 2 • HPSER -FL -FH •PARTMENT OF THE ARMY • SEATTLE DISTRICT. CORPS OF ENGINEERS P.O. SOX C -3755 • SEATTLE. WASHINGTON 9$124 2 9 APP, 1982 James W. Guenther, Director King County bepartment of Public Works 900 King County Administration Building 500 Fourth Avenue Seattle, Washington 98104 Dear Hr. Guenther: Please excuse our delay in responding to your 22 October 1981 letter regard- ing the pimping of local drainage into the Green River. We have been vaiting for the completion of-local inflow studies for the Green River flood damage reduction study. In your letter, two points were raised which require clar- ification: (1) the accommodation of 400 cubic feet per second (c.f.i.) pumping into the Green River from the Soil Conservation Service's eaatside project and (2) the U.S. Army Corps of Engineers' authority to manage eater resources within the basin. The Seattle District must continue to operate Howard A. Hanson Dam project, as authorized by Congress, to control the Green River floe to 12,000 c.f.s. at the Auburn gage. Any coincidental discharge from the Black River pumping plant or other facilities vill increase flooding in unleveed areas and increase the probability of overtopping and /nr failure of existing levees. We concur vith you that the Corps of Engineers has a commitment to flood control in the Green River basin; however, our authority does not extend beyond the operation of Howard A. Hanson Dam. We do not have authority to regulate the eater resource activities and land -use planning of local govern - ments in the Green River basin. We will continue to monitor the Green River water levels at Auburn and vill notify Zing County when the floe at Auburn is expected to exceed 5,000 c.f.s. Our ongoing flood damage reduction study will define those reaches of the lover Green River vl►ere levee improvements can be justified. We will provide Xing County available hydrologic data on the Green River system as 4 '! -- . ?. �: �.�- ..� _ ,. _.' KPSxN -PL -FH James W. Guenther, Director input for the county's basin vater.aanagement plan. If you have any ques- tions, please contact Ms. Linda Smith, Study Manager, at telephone (206) 764 -3620. Copy furnished: Lynn Brawn, Acting State Conservationist Soil Conservation Service, Room 360 D.S. Courthouse Spokane, Washington 99201, Harold Robertson, Manager Planning Division Ling County Courthouse, W217 Seattle, Washington 98104 Mr. Wes Edens Federal Emergency'Hanagenent Administration 130 228th Street Southwest Bothell, Washington 98011 Sincerely, R.P. SELLEVoLD, P.E. Chief, Enginee,ing Division 2 Responses to Comments from the United States Department of Army, Corps of Engineers Comment Number: 1 Comment noted. The last paragraph of page 35 of the DEIS is hereby amended, as follows: RQ � "Since the site has previously Seen diked, surface water mas partially prevented from draining into the River, 4rer.e r4 -t-he --p t- e.n4i -a; -e€ on -site flooding. 1 The proposed development will decrease this potential by outletting surface drainage water into the river. A gravity flow system is designed to discharge storm - water at the same rate as the existing discharge rate. A sump pump will be used to drain stormwater from the loading dock area located at the north side of the building to the gravity flow drainage system. Although this drainage system will be designed in accordance with city regulations, the system could contribute marginally to peak river flows due to the runoff from impervious ,surfaces. Although the. level of the river. is controlled at Howard Hansen. Dam; minor uncontrollable fluctuations in river flow could contribute to minor streambank erosion downstream from the system outfall." Weep GHLI> (?) HOW b.Ruvj , ZS.t -6,.Si1G Comment Number: 2 7 UNPS2UNE A.MgWD .D LA116U14G7-7. Correction noted. Paragraph 1 on page 35 of the DEIS is hereby amended as follows: "The subject property is adjacent to the Green River. Man -made dikes protect the site and general vicinity from flooding from the Green River. However, due to the dikes, internal drainage is somewhat restricted from flowing into the river. Resultant drainage follows three courses: some flows notherly to the adjacent property, some percolates into the groundwater, and some drains directly into the Green River." (Also, please refer to response to Comment Number 1 for the Department of Army, Corps of Engineers) Item 2 under Mitigating Measures on page 37 of the DEIS is correct in p/ stating "The gravity flow system is designed to discharge stormwater into the Green River at the same rate as the existing discharge rate." Comment Number: 3 Comment noted. Mitigating Measures on page 37 and page 5 are hereby • mended to include the followin : cotsrZot.. valve will be installed at the outfall of the stormwater system in order to prevent water backing up NM o ;}{g sati; from the Green River during maximum controlled flow.044,91/LAQ.- 41W0 "A one -way gate 6 D2� v�, Get Focluri r 11,441-02.E. 4ME5417t7 .t51'ri1G5 • Comment Number: 4 Correction. noted. Figures 6 and 7 of notes on said graphics are deleted. Comment Number: 5 Correction noted. Line 5, hereby amended as follows: 11'4 F. E. 1.s • the DEIS are hereby amended. The second paragraph on page 35 of the DEIS is "The maximum flood stage of the determined to best= e>levatior. 24.2 NOS VINOM Comment Number river at the site has been feet." f 1GcJ Go e basement is not designed to be occuoied. It is designed for storage, laundry facilities, mechanical room and meeting rooms. Mitigating Measures, pages 37 and 5, are hereby amended to include the following: "A flood warning alarm could be installed in the basement to alert hotel staff of stormwter inundation." Comment Number: 7 Comment n be insure ce. ed. Should the pedestrian bridge be constructed, Xermits shall from the Army Corps of Engineers prior to construction to adequate structural clearance above design flood flows. Comment Number: o Comment noted. following: Impacts on page 35 is hereby amended to include the "Portions of the Green River Basin, including the site, would be inundated by a basin wide standard project flood." wrr l+dQri 114s tte sE. "NE msr Too stursX.E5 A mopta.t Z4) 105 A L 4aVe1 MON 410b MIMMJC Iris Mos. cEttTD,iNL`t "ocl!-rta6l.E'�� PtCOPose:: MITIGAT1ou tt tZ -s Ta or r cotcP 5 coNME*'T Iwo .sptuces Mt= A Pouch or U,pst)tce. of Tie se -mew' 6R• Sc* Tt UUc. tattCv. "tuts WILL S Cr- RE- ttsrc, 7 66:r Olio C- 1N"jirsrr U NNe4TS5A '. tw t7URa NC Pie —M f1.0 Tet1 tzewogelp44, iiTt4 61 JOHN SPELLMAN Governor STATE OF WASHINGTON DEPARTMENT OF ECOLOGY Mail Stop PV -11 • Olympia, Washington 98504 • (206) 459 -6000 July 19, 1982 Mr. Mark Caughey City of Tukwila Planning Department 6200 Southcenter Boulevard Tukwila, Washington 98188 Dear Mr. Caughey: Thank you for the opportunity to review the draft environmental impact statement for the Tukwika Hotel. As noted in the EIS, a flood control zone permit is required from the Department of Ecology. An application should be submitted to the Department of Ecology, Northwest Regional Office, 4350 - 150th Avenue, NE, Redmond, Washington 98052. DONALD W. MOOS Director If you have any questions, please call Mr. Herman Huggins, Northwest Regional Office, at 885 -1900. BJR:lc cc: Herman Huggins Sincerely, Barbara J. Ritchie Environmental Review Section • Response to Comments from Washington State Department of Ecology Comment Humber: 1 State Flood Control Zone Permit application was submitted to the King County Surface Water Management Division May 24th, 1932, per the instruc- tions provided in the "Procedure for Filing State Flood Control Zone Appli- cations." Permit processing has not been completed at this time. 9 JOHN SPELLMAN Governor • STATE OF WASHINGTO• DEPARTMENT OF GAME 600 North Capitol Way, G/-11 • Olympia, Washington 98504 July 27, 1982 Mark Caughey City of Tukwila Planning Department City Hall 6200 Southcenter Boulevard Tukwila, Washington 98188 ■ FRANK LOCKAR Director (206) 753 -5700 DRAFT ENVIRONMENTAL, IMPACT STATEMENT: Tukwila Hotel Dear Mr. Caughey: Your document was reviewed by our staff as requested; our comments follow. The riparian buffer zone proposed along the Green River is inadequate to protect water quality and streamside habitat. A buffer zone does not fulfill its functions if major construction such as dikes and a fire access road is done within it. We recommend a minimum undisturbed buffer of 100 feet along the Green River at the project site. Dikes and the fire access road should be constructed outside this buffer. Areas disturbed from construction of the storm water outlet should be revegetated with native plant species. Our specific comments on the EIS are: Page 19, paragraph 5; page 20, paragraph 6. The proposed development does not conform with the Shoreline Management Program described in Appendix D. An eight -story hotel building within 100 feet of the river does not meet the use regulation that no structures exceeding 35 feet in height be built within the Low Impact Zone (Appendix D, page 6.4). Page 38, paragraph 4. A maintenance schedule for the oil /water separators should be specified prior to approval of the storm water drainage plans by the city of Tukwila. NPage 43, paragraph 1. Past reductions in wildlife habitat make the remaining habitat all the more important. Pages 43 -44, Fish.- This section presents good information on the existing fish resources of the Green River. However, the project as proposed will impact fish habitat along the Green River. The decrease 1 J • Mark Caughey July 27, 1982 Page Two in quality of site runoff plus the lack of an adequate riparian buffer will degrade the aquatic habitat and impact the fish resource. Thank you for sending us your document. We hope you find our comments helpful. BW:cv cc: . Agencies Region Sincerely, THE DEPARTMENT OF GAME Betsy Wolin, Applied Ecologist Environmental Affairs Program Habitat Management Division 1 • Responses to Comments from Washington State Department of Game Coment Number: 1 The dike is planned to be reconstructed at its existing location. The planned dike location and fire access road are in conformance with the Shoreline Master Program for the City of Tukwila. (Please refer to Appendix D of the DEIS.) U u Pt'4,z.j10%M It is ack wledged that construction of the dike and fire access road will impact vegetation along the river (please refer-to Impacts, page 42 of the DEIS) a (please refer to Impacts, page 44 of the DEIS). ve ww04 fa44 DI Nwx 't£ EVAUn 6F NARITAT Comment Number: 2 15. The proposed development does c Corm with the City of Tukwila Shoreline Management Program. (Please r er to Appendix Dof the DEIS). The 8-story portion of the hotel located beyond the 100 foot "Low Impact Zone." That portion of the hotel which is within the "Low Impact Zone" werrid' not exceed 35 feet in height. DoE` Comment Number: 3 **Mark, Information forthcoming. City Engineer currently on vacation. Public Works Director will get back to me with City's policy. Comment Number: .4 L RAR- OR UN162ue Comment noted. Generally, this sta presently does not support refer to Existing Conditions, page Measures, page 44 of the Comment Number: 5 tyr " ` m,tAILE�� j �cGrg 9�6a� ue. However, the site ildlife habitat. (Please DEIS.) 'lease refer to Impacts and Mitigating DEIS.) \ FoTuIT1Al. DE6eA#►T101,.) 01- jh4- 17-Ivey- NA$'Tr IS NOT P E. reusI V Eu'( Comment noted. Impacts on fish habitat are acknowledged. (Please refer to Impacts, page 44 of the DEIS.) �7iE n 1.1o1.0E')E¢i 1014621.1. 1Noicoe.Ncx)s 1E -przts Or SW,JIF.L)T Cu t4114 4161214gfor aw06 -D 1741)a. ,pjt WILL 13E is A1►JN)r k b UIVDeSjU M vet er 4 tU s 4A6t'D IU TKE CO'tz$E 634-51TLtq10nJ WILL ZC 1zE2ipm AP IN 44.4<mp,1 1c°-- WIj')4 'NE SUDAKI75 CONTAINED tN 111, NKWIL sH'S . iNe- frAce ZoNe (TMc. 1'3-49- . 130 ! .) '12 • DEPARTMENT OF TRANSPORTATION Office of District administrator • 0-1, 6431 Corson Ave. So., C -81410 • Seattle, Washington 98708 July 23, 1982 Mr. Mark Caughey City of Tukwila Planning Department City Hall 6200 Southcenter Boulevard Tukwila, WA 98188 NU -Fries DUANE BERENTSON • Secretary d JUL 23.1982) �- OF T UUKw ;LA iii ING DEPT. SR 181 City of Tukwila DEIS Review Tukwila Hotel (K -434) Dear Mr. Caughey: We have reviewed the above noted document and due to the projected traffic volumes generated by this project, mitigation will be re- quired as follows: 1. The projected traffic volumes indicate a traffic signal is warranted at the intersection of SR 181 and S. 158th Street. This signal system must be coordinated with emergency pre- emption. 2. The installation of a signal will severely add to Longacres peak traffic hour problems. To resolve this problem, two southbound left turn lanes will be required to improve the level of service. 3. A southbound deceleration right turn lane into the Hotel may be required 4. The above noted mitigation items necessitate the modification of the existing illumination system. 5. Additional highway right of way will be necessary to accommodate the required traffic mitigation measures. None of the above items are contained within this department's cur- rent operating budget; therefore, funding of these mitigating mea- sures will have to come from other sources. Mr. Mark Caughey July 23, 1982 Page Two 14 SERVING: KING COUNTY 200 West Mercer St. P.O. Box 9863 Searle. 99109 (206) 344.7330 KITSAP COUNTY Dial Ooerator for Ton Free Numoer Zeno 8385 Bainonoge Island Res.Cents Dial 344.7330 PIERCE COUNTY 213 Hess Budding Tacoma. 98402 (206) 3825851 SNOHOMISH COUNTY (206) 259.0288 BOARD OF DIRECTORS :. a NNONN lJUL 2 3 1982 C OF TUKWILA NN.JNG DEPT. Mark Caughey City of Tukwila Planning Depar Lent City Hall 6200 Southcenter Boulevard Tukwila, WA 98188 Dear Mt. Caughey : 200 West Mercer Street, Room 205, P.O. Box 986. Seattle, Washington 98109 (206) 344-7330 July 22, 1982 Tukwila Hotel The following couu nts are submitted in response to the draft envirorT.mental impact statement for the Tukwila Hotel. The proponent should be encouraged to implement the first three mitigating measures under "Air Quality" listed on page 4 and on page 34. 1 tigating, measure number 4 (on page 5 and on page'34) states: "See Public Transpor- tation - impacts related to 'Traffic', page 65." Yet on page 65 there are no mitigating measures listed under either section c - Transportation Systems or section d - Movement and /or Circulation of People and.Goods. This should be clarified.. On page iv, under Actions, Permits and Licenses Required, the Puget Sound Air Pollution Control Agency should be added, since it is probable that the proposed hotel may have fuel - burning equipment, an incinerator, paint spray booth, gasoline storage.tank or other equipment that requires approval under this'Agency's Notice of Construction program. On page 33, the' last sentence in paragraph 4 under impact, could be reworded` as follows: "Furthermore, as more stringent federal motor. vehicle emission controls and the Washington State vehicle emission inspection and maintenance program take effect, there could be an overall decline in vehicle- related pollutants." Thank you for the opportunity to comment. sj CHAIRMAN. Gene Lobe. Commissioner Krtsao County: Joe Slor: , . Councilman for Boom Gardner, P•e•ce Caun;y E.ecuti.e: Doug S.:nvlanc. Mayor Tacoma very truly yo -, Arthur R. E. oehler Air Pollution Control Officer James B. Haines. Councilman Snonomisn County: Wiliam E. Moore. Mayor Everett: Ranby Revere, King County E•ecuI e: Charles Royer. Mayor Seare 16 • VICE CHAIRMAN: Harvey 5 Poll. Memoer at La. Gene Neison. Mayor Bern,'. A. R. Dammoente'. Arr Pouution Control O':,• Responses to Comments from Puget Sound Air Pollution Control Agency Comment Number: 1 1/Comment noted. Comment Number: 2 y// / Correction noted. Mitigating Measure number 4 under Air Quality, pages 5 and 34 of the Draft EIS, is hereby deleted. Comment Number: 3 ■ Correction noted. Actions, Permits and Licenses Required is hereby 1,/ amended to include Puget Sound Air Pollution Control's "Notice of Construction," and "Notice of Completion." Comment Number: 4 Comment noted. Impact number 4 under Air Quality, page 33 of the Draft EIS, is hereby amended as follows: "Based on the 'Simplified Analysis Technique for Establishing Carbon Monoxide Concentrations Near Highway Facilities,' the maxi- mum levels of carbon monoxide during the peak traffic movement hour created solely by the proposed project will add approximately 1.1 ppm of carbon monoxide to the existing levels. Levels will decrease with wind speeds in excess of 2 mph and with distance from Southcenter. Cumulatively, carbon monoxide levels will be significantly less than the 1 hour maximum standard of 35 ppm. Furthermore, as more stringent federal motor vehicle emission controls and the Washington.State Vehicle Emission Inspection and Maintenance Program take effect, there could be an overall decline in vehicle- related pollutants." toµ 17 King County Conservation District 35 SOUTH GRAPY WAY RENTON, WASHINGTON 98055 Mr. Mark Caughey City of Tukwila Planning Dept. Tukwila City. °:Hall 6200 Southceriter Blvd. Tukwila, WA. 98188 Re.:. Tukwila Hotel DEIS Dear Mr. Caughey: 24, 1982 We have reviewed the Tukwila Hotel DEIS and find it thoroughly addresses our concerns. We recommend that the King County Conservation District review the Temporary Erosion - Sedimentation Control Plan (TESCP) to check the adequacy of this plan to assure that clean water enters the Green River. cc: file Sincerely, Robert T. Gavenda Water Quality-Planner 18 �- rr •. • rtn.1 ncvci nokACUT _ SFl F- GOVERNMENT • Response to Comments from King County Conservation District Comment Number: 1 T}i �- T tt Z`1 F. stoi-) /otot. 52 A,t K T1C) FLA U 4111/4.,L H°51-1-sr ute_sui sospo 4 RLot) . MIA s}iz 42API C, MJA own iwrximiiza..TytE PC,M31P4s aY T ea442T71:11flL SIT ¢ U► %. t35- In E P06 couvri GOus toixpail PIs For_ Zvitw &OD cOuM .141-• 19 elTap7:- % Municipality of Metropolitan Seattle Exchange Bldg. • 821 Second Ave., Seattle,Washington 98104 July 20, 1982 Mark Caughey City of Tukwila Planning Department City Hall 6200 Southcenter Boulevard Tukwila, Washington 98188 Draft Environmental Impact Statement Tukwila Hotel Dear Mr. Caughey: LJUL1982 0 F rU I'`- . NNING D DEPT. Metro staff has reviewed the proposal and offers the following comments. Wastewater Facilities We note the 'proposal is within Metro's Renton treatment plant service area. Metro has prepared a facilities plan for the Renton system with a grant froth DOE and EPA, in part because the Renton treatment plant has reached "design" capacity and continued development is occurring within the service area. A final plan for the Renton service area was adopted by the Metro Council in November 1981 and contains a recommended ;program for upgrading the Renton system so that water quality and health will con- tinue to be protected. The plan calls for these improve- ments to be on line in the summer of 1986. Water Quality In order to maintain water quality, all mitigating measures included on pages 26, 37 and 38 should be implemented. In addition, an oil /water separator should be included in the design of the stormwater detention system. The drainage/ detention system must be maintained on a regular schedule to be effective. This schedule should be developed with the proponent committed to implementation. Mitigating measures for water resource impacts (p. 37) include straw bales as a primary temporary erosion control technique. Use of this technique has not proven effective in all cases. We recommend that the proponent consult with the King County Conservation District for advice on designing and implementing an effective erosion and sedi- mentation control plan. 20 Mark Caughey DEIS /Tukwila Hotel July 20, 1982 Page two Construction and Water Quality (available from King County) is a good reference manual for several techniques and specific applications effectiye in protecting water quality in the Seattle -King County region. Transportation Excellent peak -hour bus service is available along West Valley Road to and from downtown Seattle. It is likely that some hotel guests might wish to use this service if it were accessible. A raised sidewalk should be provided to connect the hotel to this road in order to provide a safe walkway through the parking lot. Proponents should consult with Chuck Gehrts, Metro Transit Planner, at 447 -6367, concerning bus -stop locations prior to commencing construction. The construction of the pedestrian bridge over the Green River would offer the opportunity for hotel guests to walk to major attractions on the west side of the river, perhaps resulting in some small reduction in auto traffic and congestion otherwise resulting from this project.. Thank you for the opportunity to review and comment. Very truly yours, Roflney G. Proctor, Manager Environmental Planning Division RGP:ssj 21 Response to Comments from Municipality of Metropolitan Seattle Comment Number: 1 Comment noted. Comment' Number : 2 Comment noted. Comment Number: 3 Comment noted. Mitigating Measure number.2, page 38 of the DEIS, is amended as follows: "Oil /water separators will be utilized to remove petr leum products from catch basins and screens will be included n the stormwater system (including the drainage detention system) to collect litter and debris. The hotel will shade the parking ot4' which will help reduce i( runoff water temperature. Cleaning of parking areas shall be undertaken whenever necessary." Comment Number: 4 * *hark, Information forthcoming from Public Works Director. Comment Number: 5 Comment noted. Comment Number: 6 Comment noted. Comment Number: 7 Comment Number: 8 Comment noted. FieorOE,D 9.t— SPOUSE gar Aterfir p`61.e, XMLIUYISIL11't 5E.PJK. OU 'Mt 2OLD cORZIPOtt. IS None; kok0e4titi 114E A tre*,wf Lou'Ars 1NAT A7suc, 124,119gozT). -pou Nizotay..45 34 kCjtt- GVescs• , f tRA7V.E.S y111.1 136 MINIMAL. 8itr TIIC S064 tb F(LDVISION Or A PC5I4114%114 Nve -swIdJ cle054.1kJC PA(1! 1N17.006 k H81ri. ?e.R6 NC Lai ittireboi AO-1W 1-41644J641 PRO►,T 4.4e IS IUD..ti,'�±»�_VAUD) AL14cx H A RAISto s1�Ak a IS war coHi'D1. ut 1NIj� V PQa ee: s I uT -tt,O ' 4.1 Z - cOLAT eU PCj UJ . M ir .)1.1116 ftb 'III.0 ?NIX DF51'imi'10u TWA AIk'S (aT GEAD') WILL to tNAIVArt-T) DJrU, G VC: coo.Tuc(18>J nuts- (ttvIto F}1Oesc. " Response to Comments from City of Tukwila .Public Works Department Comment 'dumber: 1 7• P;..O F�--rt N MMM'! o f The site is inside the independen water district boundaries. An agreement will need to be.reaShed betw - -, the City, independent water district, and project proponent to UVail UdL) VZC':I X6-1- a41 c 4 'S' Lls4 lit vAIt.p.gtitrt pwfl 4M &OL6( Or W4Taa S vic,t .. H/E pot■7 1NAUT- SuCDGtS] J s tug rousi4lr ,► 114r. rA.tz-n iuvOLv�. -P. 24 DRAFT ENVIRONMENTAL IMPACT STATEMENT FOR TUKWILA HOTEL PREPARED BY THE CITY OF TUKWILA TUKWILA PLANNING DEPARTMENT TUKWILA, WASHINGTON WITH THE ASSISTANCE OF R.W. THORPE AND ASSOCIATES Prepared in Compliance with The State Environmental Policy Act of 1971 Chapter 43.21c, Revised Code of Washington, as amended SEPA Guidelines, Effective January 16, 1976 -Chapter 197 -10, Washington Administration Code, as revised City of Tukwila Ordinance Number 1211 June 17 , 1982 TABLE OF CONTENTS Introduction iii Distribution List vi I. Summary 1 A. The Proposed Action 1 B. Impacts and Mitigating Measures 1 C. Alternatives 13 D. Unavoidable Adverse Impacts 14 II. Description of the Proposal 15 A. Name of the Proposal 15 B. Project Sponsor 15 C. Project Location 15 D. File Numbers of other Agencies Involved 15 E. Site Description 15 F. Description of the Surrounding Area 15 G. Major Physical and Engineering Aspects of the Proposal15 H. Relationship to Existing Laws, Plans and Policies 17 III. Existing Conditions, Impacts, and Mitigating Measures 22 A. Index of Elements of the Environment 22 B. Elements of the Physical Environment 23 C. Elements of the Human Environment 56 D. Sources and References Consulted 81 IV. Unavoidable Adverse Impacts 83 V. Short Term Use VS. Long Term Productivity 85 VI. Irreversible and Irretrievable Commitment of Resources 86 VII. Alternatives to the Proposal 87 VIII. Appendices A. Traffic Analysis B. Fiscal Impact Analysis C. Cultural Resource Evaluation D. Shoreline Management Program E. Flora F. Fauna G. Correspondence from Fire Department H. Correspondence from Police Department I. Geotechnical Report J. Fire Protection Standards for High Rise Buildings III ii • iv Jensen, Krause and Schoenleber Architects 1962 NW Kearney Portland, Oregon 97209 Telephone: 624 6865 Beighley- Krause, Inc. Landscape Architects 12840 NW Correll Road Portland, OR 97229 Geo -Recon International, LTD Geophysics Archaeology Geology PO Box 55189 Seattle, WA 98155 Kegel & Associates Land Planning, Surveying, and Engineering 12360 NE 8th Bellevue, WA 98005 Kramer - Gehlen Associates, Inc. Consulting Structural Engineers 2712 Washington Street Vancouver, WA 98660 Shannon and Wilson Geotechnical Consultants 1105 N 38th St Seattle, WA 98103 The TRANSPO Group Transportation Engineers 23 148th Avenue SE Bellevue, Washington 98007 tattgrm perms st mu¢ ttcen -ses Euguirgst Final Plat Approval Board of Architectural Review Approval Shoreline Management Substantial Development Permit Building Permits Flood Control Permit Site Plan Approval Hydraulics Permit Electrical. Permits tocation Qf a BrOIIfd Data R.W. Thorpe & Associates 815 Seattle Tower 3rd & University Seattle, Washington 98101 Occupancy Permits Sign Permits Grading Permit Flood Control Permit Mechanical Permit All other permits necessary to construct buildings and improvements proposed on the site. RECIPIENTS OF THIS DRAFT ENVIRONMENTAL IMPACT STATEMENT fmkral Environmental Protection Agency Department of Housing and Urban Development Army Corps of Engineers, Seattle District Engineer Soils Conservation Service, Department of Agriculture U.S. Department of Interior, Fish and Wildlife • vii Iti trades Tukwila Public Library Renton Public Library - Main Branch University of Washington Library, College of Architecture and Urban Planning King County Public Library Seattle Times 2 \NA:Tick, Ali OVEFAVI 411014,:r :Abin 411111! ). FP% tits frAtt—, ? 1° ■c'vs4 )011 ■041\ ,mia.gmf'16 - imentsmagoaratuffirrp‘ "42 nragriminpvitee 'in ;"1,13k--5-n:440 4gtrit r31.11.Mlik 1111V JLV I Mil.71,44-istair ik 11,11 l' i i!blit Fifilitr(iii +ow ‘i tt i iNe tirM,17-1A1 7}10), Oil AIRPORT t, \ itt VI RI EIROONik---',0 .,),r,,,7 ie..0 -.42.1..,-.......,4,;;;,:.f---..----- VP' '.1■4114 i%Yiketril I N lr„,,,, /kft 5711011 6 Nr ft 'WI Argittt 11, * i., *."--,,*,1:7:/ "s`,77.4P747"---4■., , , .1, _.ai•:::_- - ,.:::ni ■olki,j. riTZ:zn g EM"Al ‘V.i.■ wiz, fr',/ :grimy, tv7-, ., aiieWi.0.11174",9(47( \ ..:tf.F 6,41,1751W,4 ‘4.1 441dleriP 'Pa° i silkieki ileS r iditi; Izai i--uligoil 7.4Tvr II? /INA .,.,-.„, .. ,,,,,„, Ervh, wawa ■!ii 9.% T 1. LOCATION MAP TUKWILA HOTEL. R.W. THORPE AND ASSOCIATES hotel restaurant exhaust fumes may contribute marginally to odors perceived on the site. t±±±agthinu Measures I1. Low - emission construction equipment could be used when- ever feasible. II2. Measures to control construction dust such as: water- ing, cleaning, and sweeping of streets at the end of hauling activities could be performed by the contractor. 3. Unnecessary motor vehicle engine idling during construction could be eliminated; engines could be shut iloff except when moving vehicles. • 5 • s 11. Oil /water separators will be utilized to remove petroleum products from catch basins and screens will be included in the stormwater system to collect litter and debris. The hotel will shade the parking lot, which wi I l help reduce the runoff water temperature. • displaced, especially species not tolerant of human • h. it tag -m'.cts 8 Change in the land use of the site from an open field to a hotel. Mtttgattrrg Measures None. 1. Natural Resources _f•mg Consumption of some natural resources for construction. Mitigating Measures None. 2. bum Envfirormrerrt a. Popatatiorr. Bautingy. An¢ Emptoyment facts Insignificant increase in population and employment. Increase in demand of approximately 18 housing units due to hotel employees who desire to move to Tukwila. Mtt1-gc ttna Measures None. b. Trarrsportat-i-on Vehtcutar Ilumaartimfign generated tmpacts The project will generate approximately 2,880 vehicle trips per day and about 190 vehicle trips during the peak evening hour. During the peak hour, the volume along West Valley Road is expected to increase between 4 and 6 percent due to the development. • Mtttgattng Measures 9 1. At some future date, if and when traffic conditions mandate such improvements, a traffic signal could be installed, turned to flashing operation and supple- mented with Washington State Patrol manual control during Longacres traffic periods. 2. A left turn lane will be installed at the northwest entrance. 3. The southernmost entrance will be restricted to right turn only for entering and exiting the site. 4. Metro transit information could be displayed i n the lobby of the hotel. Parktng Faci-trti-es tmpacts The proposed development will create 509 automobile parking spaces. AtijairEnct Measures None. Movement And Ctrcutatton of Peopte ,sue Goods A pedestrian bridge from the site across the river to the Christensen Trail may be constructed by the proponent if feasible. MTttgattrrg Measures None. Traffic Hazards kagsisztz Assuming accident rates in the vicinity remain at existing levels, the number of traffic accidents w i l l increase by approximately one accident per year within a one -mile radius of the site. • 10 • Mrttgati-ng Measures 1. Construct a left turn lane on West Valley Road for the northernmost entrance to the site. 2. Restrict the southernmost entrance of the hotel to ' right turns in and out only. c. Pubttc Servrces Ffre tmpacts Increased demand for fire protection services at the site. Mittgatrng Measures 1. The hotel will be fully sprinkled and conformed to each standard delineated in the City's Fire Protection Ordi- nance for High Rise Buildings. The Fire Marshal shall review the application prior to issuance of a building permit to ensure conformance to each standard. 2. Tax revenues from the proposed development will help iferous and deciduous trees. • • ! • 12 • ! e. Aesthet cs IVisual appearance of the site will be altered. Northerly views of the office complex south of the site will be IIblocked. Mme' tgattn❑ Measures None. ! f. Archaeotogtcarfti-storicat traumta ! Potential uncovering of archaeologically significant finds during construction. ! Mtttgattng Measares A qualified archaeologist should conduct on -site monitoring ! during land clearing, access road construction and building site preparation. g. Eronortri•c t mgacts imnacta Net municipal income generated by the project is estimated to be approximately $30,895 annually. Short -term employ- ! ment for construction workers and Tong -term employment for hotel employees will result. Mitigating Measures None. 13 C. ALTERNATIVES TO THE PROPOSAL Alternative 1 - No Action Description Under the "no action" alternative, the site could continue to be used for pasture until some other proposal for development is approved by the City. Impacts All positive and negative impacts of the proposal would, for the time being, be avoided. Feasibility Under current conditions, this alternative is impractical for anything other than the very limited future. The pending development of other properties on the valley floor will substantially increase the pressure for development of this site at a higher use as the inventory of land suitable for development is reduced. Alternative 2 - Light, I- ndustrial Development Description This option would be in conformance with the existing zoning designa- tion for this site. However, it would not conform to the commercial use designation of the Comprehensive Plan. This alternative would allow those uses allowed in C -1 and C -2 zones as well as light manu- facturing plants, warehouses, meat processing, salvage processing, spray painting or paint mixing, stamp dieing, shearing or punching, of metal not exceeding on- eighth inch in thickness and similar uses. Impacts This alternative could potentially increase impacts on Noise, Odor, Aesthetics, Economics, and Land Use. It is probable that traffic generation would be reduced and air quality would be less impacted, as would so i I s, natural resources, public utilities, and services. This type of development would be less visible in the general vicinity. However, it could be Tess compatible with the surrounding land uses and would become a legal non - conforming use once the existing zoning code is replaced this year. Feasibility It is unlikely permits could be acquired prior to the proposed change in zoning. Further, the proponent has not, nor intends to propose a light industrial use for the site. 14 D . UNAVOIDABLE ADVERSE I NPACTS Solis 1. The reworking and.Ioss of productivity at a maximum of 835 of the topsoils of the site. 2. Potential for minor uncontrollable erosion of soils near the streembank during construction of driveway and parking Tots adja- cent to the streambank. Topography Chanties of contours of site, including excavation depths of a maximum- of 10 feet. Air 1. Increased air pollution from automobile emissions 2. Increased particulate levels due to construction activity and additional traffic volumes 3. Short -term odors during construction Water 1. Urban pollutant levels will increase in storm water runoff, par - ticularlyduring construction 2. A potential increase in peak runoff from the site 3. Potential decrease in groundwater quality Fiore Reduction of most of the natural vegetation on the site Fauna A reduction in the number of species on the site w i l l result from project development. No Use Increased noise levels over the short terra due to construction activity, and over the long -term due to human activity and increased traffic. Light and Glare Additional light and glare will be emitted from the site to surrounding properties. F. Descrfivtti at tie lu=airtizt it= The Green River flows along the southern and western edge of the site, and West Valley Highway forms the eastern boundary. A single family residence is north and adjacent to the site. The character of the general vicinity is office and light warehouse across the river west of the site, Longacres race track and associated uses ' east of West Valley Highway; and mixed highway commercial and residential uses along West Valley Highway. (See Land Use - Exist- ing Conditions, Page 53.) G. Bazt.C2 eaccimeactnia &um= 521 tin Praov_at Construction of the hotel will take 10 months. Beginning con - struction date is scheduled for late 1982 or early 1983. The amount of fill required for the development of the site is approximately 23,500 cubic yards. Floodproofing of the hotel will require a dike with an elevation of 27.8 feet, approximately 2.8 to 3.8 feet above the site's existing elevation. 16 1 ii • 17 H. EztattsZadita fQ s f taws, 1. Li±X Tukwtta Comprehensive LAnd Use Pottcy Plan The City of Tukwila adopted the Comprehensive Land Use Policy Plan in 1977. The Comprehensive Land Use Plan Map shows the subject property suited for commercial uses with special development considerations. Refer to Figure 4, Page l8 of this EIS. The Goals, Objectives and Policies of the Comprehensive Plan pertaining to this area are as follows: COMPATIBILITY Policy #1 "Encourage the grouping of uses w h i c h w i l l mutually and economically benefit'each other or provide necessary services. Cumme nt The proposed development is ideally situated near 1 -405 and 1 -5, as well as close proximity to Southcenter Shopping Center, Tukwila and Renton Commercial and Industrial areas, and Long - acres Race Track. Policy #2 "Allow for the location of new commercial and industrial areas and the expansion of exis- ting ones when this expansion is compatible with surrounding land use and not detrimental to the public welfare." ent The proposed development is compatible with all the surroun- ding land uses, with the exception of the few single fam i l y residences in the general vicinity. However, the area is a developing commercial area and is supported as such by the Comprehensive Plan Map and Zoning Code. DESIGN Policy #3 "Encourage aesthetic building and site design in working and trade areas." Comment Under Conditional Use Permit requirements, the Planning Com- mission shall ensure that the development shall be generally compatible with the surrounding land uses in terms of traf- fic,, pedestrian circulation, and building and site design. • 19 • Policy #4 "Encourage the use of live landscaping in all developments." mment The proposed development will be required to meet the minimum ' landscaping requirements of ten feet in the front yard, and five feet in the side yards. I n addition, detailed landscape plans shall be submitted to the City for approval. Policy 17 "Promote adequate provisions for parking for all land uses." • 20 • The site plans of the proposed development are in conformance with the General Regulations as listed in Appendix D. The building and parking lot shall be constructed beyond the 40 ' foot River zone setback line. TUKWILA — R-A Agricultural C -2 Regional Retail C -P Planned Business Center C -M Industrial Park M-1 Light Industry SCALE: 1"=1200 NORTH Ker+ RENTON G Single Family Residential 8-1 Business Park B -P Business Parking M-P Manufacturing Park H-1 Heavy Industry 5.ZONING TUKWILA HOTEL R.W. THORPE AND ASSOCIATES 21 • 23 • B. ELEMENTIDEREEMEgttatEE21 Page Population 56 Hous'rna 57 Employment 58 ' Transportation /etrcu tati-on Vehicular transportation generated 60 Parking facilities 64 Transportation systems 65 Movement /circulation of people and goods 65 Waterborne, rail and air traffic 66 Traffic hazards 66 Putatc Services • 24 fiz ELEMENTS if IHE BIM= ENVtiftMENT 1. EARTH a. Extst'rng Conditi•orrs The site of the proposal is located within the Green River Valley. The geologic history of the entire Puget Lowland is dominated by the advance and retreat of at least four great ice sheets, the last of which (the Vashon) retreated from the region approximately 14,000 years ago. The general terrain of the region as it presently exists, has resulted from the action of these glaciers upon the pre- existing landscape. The area of present Puget Sound was deeply excavated by glacial movement. As the Vashon Glacier retreated north, ice - marginal and north flowing rivers were dammed, creating temporary lakes south of the glacier. Post glacial I acustr i ne sediment was deposited in the Green River Valley during this point.. Subsequent to the glacier retreating north, the ocean invaded and extended into Puget Sound and the lower Green Valley. This embayment has slowly filled with alluvium deposited by the flood waters of the White, Cedar, Black, and Green Rivers to its present level. tmincts None. Excavations or fill should affect only surface soils. Mtttgattng Measures None proposed. ttrravaidatrte Adverse t Tpac St None. b. latz Conditions A Geotechn i ca I Report, submitted by Shannon and Wilson, Inc., on March 12, 1982, is included as Appendix 1 of this DEIS. The following description of soil characteristics and recommenda- tions for the building foundation design are based on the analysis presented within that report. The site is underlain, to a depth of more than 100 feet by alluvium, most of which can be assumed originated from White River deposits. Beneath the alluvium is dense weathered basalt bed rock. • 25 • ' The soil type of the project site, as indicated by the Soil ' Conservation Service Soil Survey of King County, 1973, is Urban land (UR). This soil has been modified by disturbance of the natural layers with additions of fill material similar to the natural alluviam soils of this area. Five boring samples were taken at the site in 1973 and four additional borings were taken in January and February of 1982. These boring logs are mapped on Figure 2 of Appendix I. The borings indicate that the site is underlain by approximately 60 feet of sand. The upper 35 feet of sand is loose to medium dense, becoming denser with depth. Underlying the sand is a variable thickness of layered soft to stiff clayey silt and silt. This compressible layer varies thickness from approximately 18 feet to 35 feet. However, this layer was not observed in the most easterly boring. Beneath the clayey layer, dense, gravelly silty sand with shells to sand with gravel was observed. Water levels, according to readings taken on January 8, 1982, ' were indicated at 15 feet. Because of the proximity of the Green River to the site and the pervious nature of the near - surface soils, the groundwater levels would be about the same as the river level. The soil characteristics are closely related to that of Newberg silt loam (Ng), the soil common to the lowlands adjacent to the stream corridors in the valley. Newberg silt loam has good permeability, but is subject to a periodic high water table. The suitability of this soil for building foundations can be poor under natural conditions in which no flood control is provided. This soil is suitable for hay, pasture, and vegetables, and represents one of the best and most easily worked soils in King County. The seasonal high water table drops below the rooting depth during the growing season. The rate of erosion of this soil is slight. The Puget Sound region is located within a seismically active area. The soil type of the site, and the associated soils of the lower Green River Valley, are considered susceptible to "liquefaction" during earthquakes. This phenomenon occurs as ground shaking causes a loss of supporting capacity within loose, fine, or organic soils, which are heavily water satu- rated. Structures supported within or above the soil can undergo significant settlement and possible tilting. The esti- mated recurrence interval for an earthquake with a Richter magnitude of 5.0 is five years, for 6.0, thirty years, and for 7.0 and above, 150 years or greater. Impacts The proposed building site is underlain with normally consoli- dated alluvial soils of which the thick clayey silt is compres- sible. Consequently, the hotel tower and lounge and dining areas will be supported on relatively long end - bearing piles. • • CQ1ir!)'lr ANA 14.1 Ayr loll° /•1", .40 s/' s7 s. 6ath II • 1 1 Tat . NV /s. 1? l 8001 at1 V1 O'C1UA$r AYX 1.!40 O' 11 Q*It lrll 14[70 MK ATI 71' 4Yll 11/0. Q' f/t/ /J// Jr f &Ga'N Eurr ,uoo ,Zalr me .hve nee AY 4470/441/.4111/ AWN /I 441•41/ WYe /1' .!/'/retw.t• 4/4 f /.Y /,JY .5,4744fENT'won air /9A7 epic *1u TOity *1u 111r J/00 C1t �9 lYre 1./A1e a 1W4770A/ Ca'/O7Y/Y.1 4' 2.00 -4' GREEN i9 /1'ER Aar 617X1. /1/f/r 601110J a £N6 /NleAr ,' 4 /er NO =VV *.v•l a'C114401 wit 61 /eiolres er llr/�tl/'NO /N70 /A7 042%Y. /YGI 01/41415 .4 /00 M► /leap AMR *.0291 .`UIY GR1V 4.1.44C4 4 AV dire 111 .4111 x1/710 .DY.' 11:awlS1 1117 mAr eft 44420,14 7a• LEGEND AY1104V,1 /A+'e • n1aa0,61720 te44,4 r -4v- eruruts Covra1/41 a 014), t /.Ytt 0•2•14/I'Y Nlov •111f l /Nei &AOC CO -7W C2 dsA9Y, f /!10 1044,69 f�.wsv rnV704 t / /N/.SN nereMe,W &4' /Am/ AN AT 4t4/#1 M ,JAYZAIISYT = Ar•ArdatC i eraare 4» KEGEL & ASSOCIATES INC. LAND PLANNING ENGINEERING Al SURVEYING 9600 EVERGREEN WAY EVERETT,WA. 98204 6EltEVt6 OFFICE 12360N.E.6thSTREET 1102 6ELLEVUE,WA. 96005 M. (206) 451.1113 ' 0E4W10 n 0•It a t1J MAI /X /SR CMtCIIO 111,1 II PtOit11 444 At NJ STORM WATER DRAINAGE AND GRADING PLAN For EM Tukwila Hotel SHEET 3 01 4 HU NO 28243 28 29 impacts Project development will necessitate floodproofing the hotel. The proposed development shows a dike along the southern lot boundary and grades around the hotel between 28 and 30 feet in elevation. Mfittgattng Measures None. Unavotdabte Adverse °hmpacts None. 30 • Location 31 TABLE 1 S ammdry Dl. S usuerrded Part'rcutate C,oncerrtrati-arrs Iukalia Area $rtrtvah Geometric Mean micrograms per cubic meter Distance Wash. from site State (mi) 1981* 1980 1979 1978 1977 1976 1975 Std. Renton Municipal Building 2.50 -- 53 59 55 51 50 37 60 Southcenter .38 62* 48 50 46 48 45 34 60 12026 42nd Ave S 2.87 75* 57 58 53 52 49 37 60 (King County) S 2nd St 8 Lake Ave S 2.00 59* 53 59 55* -- -- 60 (Renton) (Source: Puget Sound Air Pollution Control Agency, Air Pollution Control Agency, A-i-r, Ouattty Data jmary- -1977, 1978, 1979, 1980, 1981, Quarterly Air Monitoring Data Summary; Department of Ecology, State of Washington, June 1981). *Based on Tess than 12 months data. The Table indicates the particulate levels have exceeded the Washington State Ambient Air Quality Standards. Based on the proximity of the site to the monitoring stations, it is expected that the air quality conditions are most simi- lar to those recorded at the Southcenter monitoring site. 2) Automotrfite r Exfis t' Condtttons Carbon monoxide (CO) is a by- product of internal combustion and accumulates in areas of heavy, slowly moving traffic. CO can reduce the oxygen carrying capacity of blood, re- sulting in drowsiness and loss of vigor. Levels of CO vary by location more readily than particulates, therefore, it is difficult to interpolate accurate readings to unmoni- tored sites. In addition to carbon monoxide, automobiles emit two other chemicals, hydrocarbons, and nitrogen oxides, which react I • 32 State Ambiant 35.0 9.0 0.24 0.05/ Air Quality - Annual Standard Average (Source: Washington State Department of Transportation 1977 Monitoring) The CO levels monitored were within the State standards. Although those levels were measured at a monitoring station closest the project site, and under traffic conditions roughly similar to those near the site, they are not neces- sarily representative of current CO levels there. The hydrocarbons were, as shown, at levels above the State three hour average during both times measured between 6 and 9 AM. 3) 2at±mc alits±ing Condtttons Sulfur dioxide (SO2) pollution is produced through the burning of fossil fuels and is associated with a variety of respiratory ailments. The nearest station monitoring sul- fur dioxide is located at the Duwamish Pump Station, 4500 East Marginal Way, Seattle, approximately 8 miles from the site. Mtttgating Measures None. Unavoidable Adverse Envtronmental impacts Short -term odors during construction. ' 35 3. WATER a. rtacg ptai kaantfity/Pioods Ex i -sting Corrd tti-ons The subject property is adjacent to the Green River. Man -made dikes protect the site and general vicinity from flooding from the Green River. However, due to the dikes, internal drainage is restricted from flowing into the river with resultant pon- ding during heavy rains. The level of the Green River is regulated by the Howard Hanson Dam, approximately 35 miles upstream from the project site. The flood level of the river is thus dictated by the maximum discharge of the dam. The maximum flood stage of the river at the site has been determined to be at elevation 25.8 feet. The major portion of the site lies within this flood plain. The site lies within the Green River flood control zone. A permit for any development within this zone must be obtained from the King County Hydraulics Division, acting as the dele- gated authority for the State of Washington. The subject site is located in an area designated "floodway fringe" where new development is only allowed when the King County Hydraulics Division determines the development has adequate floodproofing for a 100 year storm. I n accordance with the direction of the Tukwila Public Works Department, storm drainage runoff will be filtered and chan- neled into the Green River. The present policy is to move surface water runoff, from properties adjacent to the river, into the river as quickly as possible for the purpose of drain- ing those lands before the river reaches its flood capacity of 12,000 cfs (controlled by Howard Hanson Dam). hmpracts I n conformance with the State Flood Control Permit require- ments, fill material will be utilized to bring building eleva- tions above 100 year flood levels. A substantial increase in surface water runoff volumes would occur due to the creation of paved areas over approximately 82 percent of the site. This surface water will be collected in a storm drainage system and emptied into the Green River at the same rate as presently exists in its undeveloped state. Since the site has previously been diked, surface water was prevented from draining into the River, increasing potential of flooding. The proposed development will decrease this poten- tial by pumping surface drainage water into the river as quick- ly as possible. Although this drainage system will be designed in accordance with City and County regulations, the system could contribute marginally to peak river flows due to the runoff from impervious surfaces. Although the level of the I ea ...I Inn, .7- i w 'Ci'l??y4 121. 70 / )4. 11/0 INV /1.14 , /NV /817 / I NectIo4"' dv° N 1 /01rfit 1*-1( MO NJ ea arrt /t tivw.rify .401, .1030 /..1* 04°M Wm, OW_ 6-- a *1 14.1" Aile la 80 /-8- 411' JOBS K. 40' • I 71' KEGEL & ASSOCIATES INC. K:1 LAND PLANNING ENGINEERING & SURVEYING 9800 EVERGREEN W AY EVIRETI,WA. 9621.14 BELLEVUE Of Fla 12160N.E.8thSTRELf• BELLEVUE,WA. 48410S Ph. 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The potential also exists for minor uncontrollable erosion of isurficial streambank soils into the river during construction ■ and Landscaping. M-tttgatinq Measures 1. FiII material will be required to floodproof building sites which will prevent on -site flooding. 2. A stormwater detention system designed for a 10 year storm capable of detaining 8,252 cubic feet of water is proposed to be installed. Stormw ater will be stored in oversized ' pipes under the parking lot and detention areas (depres- sions) on the parking lot. The gravity flow system is designed to discharge stormwater into the Green River at ' the same rate as the existing discharge rate. The City of Tukwila shall approve stormwater drainage plans prior to issuance of the building permit. 3. A temporary storm management system and the erosion control measures discussed under the Soils section, page 25 will be employed during construction. 4. Where possible, natural vegetation for silt control shall be maintained. 5. Temporary siltation and detention ponds shall be constructed by placing straw bales across swales. 6. All temporary siltation ponds shall be maintained in a satisfactory condition until such time as cleaning and /or construction is completed and the permanent drainage facil- ities are operational. 7. Rip -rap base (both sides) of bales sha l I be positioned as required for erosion control. 8. Cleaning of streets and parking areas shall be undertaken whenever necessary. 9. Frequent maintenance of the stormwater system shall be provided. . Unavotdabte Adverse Impacts 1. A decrease in the quality of the runoff from the site. 2. A potential increase in peak runoff from the site. • 38- • the groundwater levels are approximately the same as the sur- face water level of the river. impacts Infiltration of precipitation into groundwaters through the surface soils will be reduced, becoming mainly surface runoff, which will be directed to the Green River. The addition of automobile traffic will replace nutrients from vegetation and rainwater with pollutants from paved surfaces, petroleum products, sediments, and heavy metal traces from automobiles. It is expected that groundwater levels will not change as a result of development due to the proximity of the River. 40 4. FLORA €xi^tfina Oondtttons a. Numbs r The site of the proposed project is located within the Green River Valley, an area which has undergone considerable altera- tion in vegetation types due to urbanization and agricultural activities. The original habitat of the Green River valley consisted of mixed coniferous and deciduous, and riparian forest (in the lowland areas adjacent stream corridors). Pre- sent day forest stands consist largely of red alder, and iso- lated stands of doug I as fir, western red cedar, and hemlock. Pioneer shrub species, grasses, agricultural, and grazing crops are common in the predominately open areas. The vegetation at the project site is representative of other lowland types in the valley which are subject to periodic high water table conditions. With the exception of a small scatter- ing of cottonwoods, maples, berries, and shrub species, the site consists primarily of grasses which have been introduced because of their suitability for grazing purposes. Many "weed" species are represented as well. The portions of the site presently utilized for grazing are dominated by bluegrass and fescue, with clover, buttercup, plantain, and other weeds subdominant. Only those plants in- edible to sheep, or able to withstand heavy grazing pressure have been able to reach maturity, including barley, mullein, and sourdock. A list of located and probable plant species at the site of the proposal is presented in Appendix E. The small number of deciduous trees which are located on the project site include two 80 foot big leaf maples, and one 120 foot black cottonwood. The trees are in very poor condition, as evidenced by spotty foliage and weak and broken limbs. The landscape architect has recommended removal of the trees because of their poor condition. The levee along the southern boundary of the site is covered by a mix of cottonwoods, Oregon ash, and pacific willow. All of the trees on the site are representative of species tolerant of periodic standing water, or high water table conditions. No rare or endangered species were discovered on the site. 41 EXISTING COTTONW TO BE REMOVED EXISTING MAPLE TO BE REMOVED EXISTING MAPLE �1 TO BE REMOVED TREES TO REMAIN WEST VALLEY HIG WAY TUKWILA HOTEL TUKWILA, WASHINGTON 1 1 • TREE REMOVAL PLAN JENSEN KRAUSE & SCNOENLEBER ARCHITECTS & PLANNERS PC AIA 1•8 NW R•ARNOW 1.00714. AMP ON001i ff•O• - • , MN C eihle�r Landscape Architecture, Marring Pc 12340 Northwiat Como', Road • Portland, Orpon 97229 42 • • 43 • 5. FAUNA Extsti-ng Conditions Number Dtverstty j Species /Unitque Species /Terrestrtat Witdttfe : The wildlife habitats provided by the Green River Valle have Y Y been altered and reduced through the clearing of the original . 44 • , The Washington State Department of Fisheries operates a fish hatchery located on the Soos Creek tributary. Freshwater angling is permitted in the lower Green - Duwamish Rivers. The average annual salmon catch, according to surveys conducted between 1964 and 1966, was 270. More than 655 fish were reported caught in 1966. A 1966 survey showed that 111,450 angler days produced 22,550 steelhead from the Green River drainage. Elliot Bay, which supports over 60,000 angler days annually, is a favorite salmon sport - fishing area asso- ciated with the Green River runs. Endangered qt fihreatened Sp-ectes: • 45 Unavofctabte Adverse -impacts A reduction in the number of species on the site will result from protect development. • 46 • • 47 • outdoor residential areas. The U.S. Environmental Protection Agency (EPA) Region X Guidelines recommend that for adequate speech communication, the median noise level (L50) should not ' exceed 55 dBA. The EPA does not have regulatory standards. The noise level measurements taken at the Maule Avenue site was 48 49. Table 5 • IMMEDIATE ABATEMENT POTENTIAL OF .CONSTRUCTION EQUIPMENT NOISE LEVEL IN dBA AT 50 FEET Equipment With Feasible Present Noise Controll Important Noise Sources2 Usage3 Earthmoving front loader 79 75 E C F I H 40 backhoes 85 75 E C F I H 16 dozers 80 75 E C F I H 16 tractors 80 75 E C F I W 40 scrapers 88 80 E C F I W 40 graders 85 75 E C F I V 8 truck 91 75 E C.F I T 40 paver 89 80 E D F I 10 Materials Handling concrete mixer 85 75 E C F W T , 40 concrete pump 82 75 E C H 40 crane 83 75 E C F I T 16 derrick 88 75 E CFI T 16 Stationary pumps 76 75 E C 100 generators 78 75 E C 100 compressors 81 75 E C H I 100 Impact pile drivers . 101 95 W P E 4 jack hammers 88 75 P W E C 10 rock drills 98 80 W E P 4 pneumatic tools 86 80 P W E C 16 Other saws 78 75 W -4 vibrator 76 75 W E C 40 lEstimated levels obtainable by selecting quieter procedures or machine and implementing noise control features requiring no major redesign or extreme cost. 2In order of importance: T Power Transmission System, Gearing C Engine Casing E Engine Exhaust P Pneumatic Exhaust F Cooling Fan W Tool -Work Interaction H Hydraulics I Engine Intake 3Percentage of tAme a uipment is operating at noisiest mode in most used phase on site (Sorrce: 'Dash Feint IIeights.DEIS, King County) 50 Noise impacts due to additional traffic generated will also occur, although it appears the impacts will not be significant. By way of comparison, the following table gives levels of common noise sources: Table 6 dBA LEVELS OF COMMON NOISE SOURCES Source of Noise Noise Level dBA Jet takeoff 120 (200 feet) Auto horn 115 (3 feet) Riveting machine 110 Jet takeoff 105 (2,000 feet) Garbage truck • • . . . 100 Heavy truck 90 (50 feet) Pneumatic drill 85 (50 feet) Alarm clock 80 Freight train 75 (50 feet) Freeway traffic 70 (50 feet) Air - conditioning unit . .. . 60 (20 feet) Light auto traffic 50 (100. feet) Living room 45 Bedroom 40 Library 35 (Source: Dash Point Heights DEIS, K.C.) 51 IIGiven a dBA computation of loudness for annoyance level, the loudness or annoyance doubles for each 10 dBA increment in Ilevel. The traffic report (Appendix A)' estimates the volume of traffic on West Valley Highway to be approximately 20,000 to 23,000 7. LIGHT AND GLARE • 5'3 • 8. LAND USE Fxtsting Eondi-tfons II) 54 • • 55 . • 9. NATURAL RESOURCES Extsti nq Cond'rttorrs • 56 • 58 3. EMPLOYMENT 60 4. TRANSPORTATION (See also detailed consultants report, Appendix A a. Vehtcu-ar ItAmpgr±A±Ign Generated Ext st i-ng Co n dtti-o ns The site is served by West Valley Road, a major north -south arterial extending from Grady Way through Auburn. West Valley Road is a 5 lane road (2 lanes in each direction with a center 2 -way left turn lane) except in the intersection south of the site to Strander Boulevard where the road narrows to 4 lanes. To the north of the 1 -405 interchange, the road intersects with Grady Way, Southcenter Boulevard, and north onto 1 -5. North of Grady Way, the name of the road changes to Interurban Avenue. To the south, Strander Boulevard is one of two major east -west arterials south of the site. Strander Boulevard is 4 lanes wide, but widens to 5 at its intersections with north -south cross streets to permit left turn lanes. Southcenter Boulevard is the primary east -west arterial that lies north of the site. Southcenter Boulevard is a 2 -lane roadway with stabilized gravel shoulders toward its western end as it intersects with Interurban Avenue. Grady Way is also a 2 -lane road north of the site. Traffic signals in the vicinity of the site are located at the following intersections: Interurban Avenue and Southcenter Boulevard, West Valley Road and S.W. Grady Way, West Valley Road and 1 -405 interchange, West Valley Road and Strander Boulevard (see Figure A -6). Where volumes are lighter, STOP sign control is used to control the minor volume side street traffic so the major through volumes can pass uninterrupted. In addition to this permanent traffic control, the Washington State Patrol assigns two to three officers to control traffic between 1 -405 and the main entrance to Longacres Race Track (South 158th Street) during the racing season. ENTRANCO Engineers has prepared a transportation improvement program for the City of Tukwila. This program, combined with the most recent (1982) transportation improvement program, shows a number of major improvements proposed for this area (see Figure A -8). Of top priority is the rebuilding of the Grady Way bridge over the railroad just north of 1 -405. Next is the realignment of Southcenter Boulevard to intersect Grady Way and provide better access into Andover Business Park and Southcenter Regional Shopping Center. Other near term improve- ments include: addition of a right turn lane at the West Valley Road - Strander Boulevard intersection, new channelization and signalization at the Strander Boulevard- Andover Park East intersection, sidewalks and other street improvements are pro- posed along Interurban Avenue. Long term improvements include: • 61 • Road intersection operates at LOS D to LOS E. These levels do not reflect the influence of traffic when Longacres is operating. Based on conversations with the Washington State IIDepartment of Transportation and Washington State Patrol, it • 62 • appears that conditions along West Valley Road between Grady Way and South 158th Street deteriorate to an "at or near capacity" condition just prior to the opening of the track and following its closure. Impacts Trip generation statistics by the Institute of Transportation Engineers and the Arizona State Department of Transportation shows the average trip generation rates for hotels and motels range between 10.1 and 10.5 daily trips per occupied room. vicinity of the northerly entrance, the need for a traffic s i g n a l is not warranted. W h i l e there w i l l be selected times when signal warrant criteria are satisfied (e.g., following IILongacres closing), warrants cannot be met for the full 8 -hour • 64 • period. A traffic signal may, in fact, add to the congestion at the northern entrance, because it could simultaneously re- spond to the peak surges generated by Longacres and maintain coordination with the traffic signals at 1 -405. • 65 • c. Itmnluactattga Exfsti ng Cond ittons • 66 • , this pedestrian bridge to cross the river between the business f. Traff t aft zards Extsttnq Condttrons Traffic accident statistics were assembled from the records ' maintained by the Washington State Department of Transportation District 1. These statistics are summarized in Figure 6 in Appendix A. The highest number of average annual accidents occured at Strander Boulevard and West Valley Road (4.0), with the next highest accident location falling at West Valley Road and South 158th Street (3.0). Midway between these two • 67 • intersections, the average annual number of accidents dropped to 1.5 per year. North of the site, 1.5 accidents per year occured at both the Southcenter Boulevard- Interurban Avenue and • 68 • the site, has f ac i I i t i es for field games, tennis, and track, and is equipped with restrooms. Longacres race track is visible from the site. Horse racing is seasonal, lasting from April to October. • ! • 71 • Impacts Over the short -term, vehicles involved with construction at the 6. ENERGY • 7. UTILITIES a. Exfstrng Conditions 73 Puget Power and Light Company would provide electrical energy to the proposed development. The Renton Junction substation southeast of the site on West Valley Highway serves the vicinity. The Washington Natural Gas Company would provide natural gas service to the development should the developer opt for the energy source in the future. At present, the site could be served by a four inch high pressure line located on West Valley Highway. impacts During construction significant amounts of electrical energy will be necessary, estimated to equal approximately 81,000 BTU's per one dollar of construction cost (Department of Energy, 1978). Mttrgatitng Measures The hotel is designed to have R -11 insulation in the walls and R -19 in the roof. Unavo rdabte Adverse Impacts Increased demand for electrical energy. b. Communtcatfion Extsttng Condfitfons The proposed development is within the service area of Pacific Northwest Bell Telephone Company. They have the ability to supply the needed line capacity for all development in the area as long as they are aware of the need well in advance. f'mp acts Telephone lines will need to be extended to the site. Mtti-gati-no Measures 1. All telephone lines will be installed underground. 2. Installation of telephone lines will be coordinated with installation of electrical lines. • 74 Unavotdabte Adverse - Impacts None. c. r y d. Ex-Usti-rig ContUti ons Water in the vicinity is supplied by the City of Tukwila and "Independent Water Company." A six inch water main owned by Independent Water Company lies approximately 40 feet northeast of the northeast corner of the site. The line is connected to a fire hydrant on the west side of West Valley Road, which has a pressure of approximately 90 psi. Independent Water Company also has a twelve inch line approximately 470 feet east of the site on South 158th Street, and The City of Tukwila owns a ten inch main approximately 480 feet south of the site. The water pressure is between 125 and 150 psi. Average demand in the City is approximately 6,000,000 gallons per day. Impacts The proponent intends to use the City of Tukwila water line south of the site. This ten inch main could adequately supply the hotel. I n order to connect with this I i ne, the proponent would install an extension of approximately 490 feet. The development will result in increased water demand. Mtttgatrng Measures All work and materials will be in complete accordance with the standards and specification of the City of Tukwila and the State Department of Social and Health Services. Unavo I-dab°te Adverse tm acts Increased demand on water supply. Ectsttng Condtttons Sewer service is provided by the City of Tukwila. The nearest sewer pipe is eight inches in diameter, located approximately 220 feet east of the subject site. Sewage is discharged into the Metro Renton Sewage Treatment Plant, which is already operating above capacity. impacts An eight inch sewer line will be installed by the proponent to serve the site. The development will result in increased sewage flows. Litigating Measures All work and materials shall be in complete accordance with the specifications and standards of the City of Tukwila and the Washington State Department of Ecology. Unavotdabte Adverse impacts Sewage generated by the development would contribute to above capacity discharges at the Renton Metro Sewage Treatment Plant. e. &otfid Exist Frig Can-d-ittorrs The businesses and residences in the surrounding vicinity are currently served by Sea -Tac Disposal. Dumpsters and compactors can be rented from them. The solid waste is taken to the King County Transfer Station. iranaszta The proposed development will increase demand for solid waste collection, which can adequately be provided by Sea -Tac Disposal. Eltigmting Measures None. Unavoitabte Adverse Impacts None. 76 8. AESTHETICS Extsting Conditions The site, located on the bank of the Green River, is currently an undeveloped open field used occasionally for grazing. The River flows along the southern and western boundaries of the site. Single family homes lie to the north and south. Commer- cial strip development, Longacres Race Track, and supplementary l a n d uses l i e along West Valley Highway, immediately east of the site. Office and light warehouse uses are west of the site. Some of the most dominant visual elements in the general vicinity are; Longacres Race Track facilities, West Valley Highway, 1 -405, River View Office Buildings, and the Green River. The residential neighborhood on McMicken Heights, approximately one mile west of the site has easterly views toward the Cascades across Tukwila CBD and the subject site. The residential area is between 300 and 400 feet above the valley floor. The residential neighborhoods on Tukwila Hill, northwest of the site, generally are not on slopes oriented toward the subject site. They are generally oriented due south or east. Buildings west of the site along Christensen Road face Andover Park East, backyards are along Christensen Road. tmpacts Development of the site will convert an open field into an eight story hotel. The development will be visible from much of the surrounding community. However, only a few neighboring properties will have views obstructed due to the project. Northerly views from the 3 story River View Office Complex south and from Christensen Trail, across the river from the site, would have views blocked. Other views will be altered when traveling by car on 1 -405 and West Valley Highway. The change in character due to the hotel development w i l l be determined as a positive element of the man -made environment by some residents, workers, and commuters in Tukwila and as a detrimental aesthetic impact by others. Mi- ttgattrrcr Measures None. thravoTdabte Adverse tmpacts Obstruction of some views of adjacent property owners and change in character of the general vicinity. 9. VIEW ASSESSMENT TUKWILA HOTEL H.W. THORPE AND ASSOCIATES 78 • NORTH if 10. VIEW BLOCKAGE TUKWILA HOTEL R.W. THORPE AND ASSOCIATES • 79 • 9. ARCHAEOLOGICAL /HISTORICAL Extsttng Condtt i ons Duwamish Indians inhabited the Green River drainage system. Their villages often moved, forced by the changing course of the river, cultural preference for relatively clean surroun- dings, and the necessity to seek food and supplies as they became available. The Duwamish No.1 site, located downstream from the project area on the Duwamish Waterway, appears to have been occupied. The oldest dendro- corrected C -14 date obtained is 670 AD and the youngest is 1690 - 1800 AD. Another site, located along the abandoned channel of the Black River near Renton, was occupied somewhere between 200 and 1000 AD and again between 1900 and 1920. An archaeological survey was undertaken on the site. There is no indication from the survey of any archaeological significant artifacts on the site. (See Appendix 0) M p=ct5 Potential uncovering of archaeologically significant finds during construction. Mi-ttgating Measures A qualified archaeologist should conduct on -site monitoring during land clearing, access road construction and building site preparation. thravoi-daUte Adverse Impacts 80 • 82 o !la= State Energy Conservation Ptan Handbook by Washington State Department of Energy o ?rbt tc 1. Mr. Perry Capps, Puget Power (Telephone Conversation) 2. Jim Walker, Washington Natural Gas (Telephone Conversation) 3. City of Tukwila Department of Public Works - Phil Fraser, Water Department - Dave Grage, Sewer Department - Ray Doss (Telephone Conversations) 4. Pacific Northwest Bell o Traffic Analysis, March 1982, The TRANSPO Group o Pulaftc Services 1. Fire Marshall James Hoel, City of Tukwila, 1981 (See letter re: Fire Services, Appendix G) 2. Lieutenant Patrick L. Phalan, Administrative Commander, City of Tukwila Police Department (See letter re: Police Services, Appen- dix H) o Cultural Resourece Evaluation, January 1982, Geo -Recon International, LTD. o film= fmcbgaix 1. City of Tukwila Preliminary Budget 1982 2. "Fiscal Impact Guidebook - Estimating Local Costs and Revenues of Land-Development" 1979 by Rober Burchell and David Listokin 3. "Trends in the Hotel Industry in the Pacific Northwest" 1981 Edi- tion, by Pannell Kerr Forster, CPA 4. "Real Estate Research Report" 1981, by Seattle Real Estate Re- search Committee • 83 • IV. UNAVOIDABLE ADVERSE IMPACTS Sorts 1. The reworking and Toss of productivity at a maximum of 83% of the topsoils of the site. ' 2. Potential for minor uncontrollable erosion of soils near the streambank during construction of driveway and parking Tots adja- cent to the streambank. 3. Potential for minor erosion of soils near streambank due to poten- tial presence of human activity. op$Ldphy ' Changes in the contours of the site, including excavation depths of a maximum of 10 feet. Air 1. Increased air pollution from automobile emissions contributing to hydrocarbon levels which already exceed Washington State Standards. 2. Increased particulate levels, which already exceed Washington State Standards, due to construction activity and additional traf- fic volumes ' 3. Short -term odors during construction IWdterr 1. Urban pollutant levels will increase in storm water runoff, par - ticularly during construction 2. A potential increase in peak runoff from the site 3. Potential decrease in groundwater quality Fiord rReduction of most of the natural vegetation on the site fauna A reduction in the number of species on the site will result from project development. Emiam Increased noise levels over the short term due to construction activity, and over the Tong -term due to human activity and increased traffic. 84 tizIrt m Gfiare Additional Tight and glare will be emitted from the site to surrounding properties. • 85 • ' V. SHORT —TERM USE VERSUS LONG —TERM PRODUCTIVITY The hotel development proposed for the site will be a Tong term use of the land. The hotel can be expected to remain for at least 50 years or the life of the building. The development will prevent short term use of the land for agricultural use. However, because the site is located on a major arterial and conveniently located near 1 -405 and I- 5, and because the site is not proposed for purchase in the agricul- tural retention program, long term agricultural use may not occur on the site whether or not the project i s implemented. Long term estab- lishment of commercial use other than hotel use on the site w i l l be precluded. Realization of the project would result in economic benefits to private investers, as well as increased employment opportunities and tax base. Therewould be secondary economic benefits to existing • 86 • VI. IRREVERSIBLE AND IRRETRIEVABLE COMMITMENT OF RESOURCES Completion of the proposed action will result in the long term commitment of the entire site containing soils suitable for grazing to use for building, parking lot, and landscaped areas. Most soils could be reclaimed in the future, though some local changes in the soil profile by excavation and addition of new materials could render this infeasible. Long term use of the hotel will commit additional energy resources for heating and maintenance at this location. The use of various construction and building materials required for ' development of the proposed project can be considered an irreversible commitment of these materials, as well as the energy utilized in providing them. ' The proposed project w i l l require a long term commitment of energy resources, and solid waste facilities. All electrical power and water expended and the waste treatment and solid waste facilities utilized during construction, operation, and maintenance of the proposed_ project are considered irreversible and irretrievable commitments. 87 VII. ALTERNATIVES TO THE PROPOSAL A tternatrve ;t .t rig ACWILI Rescrfp -tton Under the "no action" alternative, the site could continue to be used for pasture until some other proposal for development is approved by the City. imp All positive and negative impacts of the proposal would, for the time being, be avoided. Fees it it i ty Under current conditions, this alternative is impractical for anything other than the very limited future. The pending development of other properties on the valley floor will substantially increase the pressure for development of this site at a higher use as the inventory of land suitable for development is reduced. A l teriici+ I ve a JanticatrIxt DevetaonuErrt Descriptton This option would be in conformance with the existing zoning designa- tion for this site. However, it would not conform to the commercial use designation of the Comprehensive Plan. This alternative would allow those uses allowed in C -1 and C -2 zones as well as light manu- facturing plants, warehouses, meat processing, salvage processing, spray painting or paint mixing, stamp dieing, shearing or punching of metal not exceeding on- eighth inch in thickness and similar uses. Impacts This alternative could potentially increase impacts on Noise, Odor, Aesthetics, Economics, and Land Use. It is probable that traffic generation would be reduced and air quality would be less impacted, as would soils, natural resources, public utilities, and services. This type of development would be less visible in the general vicinity. However, it could be less compatible with the surrounding land uses and would become a legal non - conforming use once the existing zoning code is replaced this year. Feas i-titfty It is unlikely permits could be acquired prior to the proposed change in zoning. Further, the proponent has not, nor intends to propose a light industrial use for the site. • • TUKWILA HOTEL MARCH 1982 prepared for: The Christensen Group Inc. The City of Tukwila - - -- prepared by: The TRANSPO Group 23 - 148th Ave SE Bellevue, WA 98007 'TRANSPO Grove INTRODUCTION • , . w .1;`�y': Vim-.. IMt ,• . ,Aa1Pams !tea Sew.' 19 ••' as 3 jgN'nsend A,`y_ _•, Ir•tl� f �•� _L Vllle w MI 530 USO Arlington i .. SNOHOMISH_ Rotors • e a ra Gnite Falls A r3l aka IT Wti•. ' Slavans £4!t e FOAM 'e. _l,i•n: Sultan «• Senn, • Monroe si r,,;.„ 0 Go n.aou ., uII M. Lai Duvall ram' L Jo,• b elle • i1 Carnation FM 1 4 CdV i e Snow A Nina Beau SUN Atli • Taeuya, t7 en tow. knock P tPPA Shelia n L «. MASON ACary 1 yrya ,�' I..NM.. © , A Nw 1 : l ..! , .,.•1r .c..rrianra. w..mr.o.r at M! ari. ,..., . n..l.fMUBSt : -! a . aalr 1 I; ('. Steilacoom ' ,`gndi %v Imali,.'Nur°' m trPOSL _Oo , t 16 •a . e • J I .a.a.7: rr; 1- • i° tM• Whit= Id ;� AOiympia rm L Tumwater ••� Monona s• ]HURSTO _ Porter — ` E.OIymQia _1 — - ram die kW Gam • w• _ O � Diamo Y.aa L Somner Is" • ©Buckley Balnd oean Cady Falb "ttai Maple ' Sa'n�aa Lands burg Palma) 11 aaa Cumbria. �\M •H I1.14 M : L.•,• Enumclawi' Fran tun -7 • TUKWILA HOTEL FIGURE 1 VICINITY AND LOCATION MAP The SPO Grove • Access to the site will be provided via two exit /entrances off West Valley Road . The first will be opposite 1.58th and will provide access from all directions (both right and left turns in and out). The second access lies approximately 370 feet south of the primary access. Traffic in and out of this entrance will be restricted to right turn in and right turn out only. Traffic entering the site will circulate to the north of the building under a canopy where baggage and passengers will be loaded and unloaded. The aisles for parking will serve as the internal road system. Presently, the plan calls for development for approximately 508 automobile spaces, 20 percent of which will be designated for compact cars. A proposed feature of the project that is still under consideration is a pedestrian bridge that crosses the Green River to the south connecting a public open space and trail system with the site. This bridge could be used by guests who wish to take a walk to the other side of the river to the open space area or by business people in the business park area west of the Green River who wish.to walk to the hotel /restaurant for lunch or dinner. In the area surrounding the site there are a wide variety of uses. Immediately to the east is the Longacres thoroughbred horse racing track. West of the river, as mentioned above, is a very substantial business park including a wide variety of office, commercial, warehousing, and light industrial users. Along West Valley Road exists a number of commercial and retail activities including restaurants, and roadside support services. As mentioned earlier, the Southcenter regional shopping center lies approxi- mately 2 miles west of the site and can be accessed via Strander Boulevard to the south or I -405 or Southcenter Boulevard to the north. Further to the west I -405 intersects with I -5 which runs north -south from Vancouver, B.C. to California. Further west I -405 changes designation to State Route 518 and connects this area with the Seattle- Tacoma International Airport. More immediate to the site, the area north of the.site is presently occupied with a single family home and several acres of vacant land. Likewise, to the south of the site there is a single family residence and some other commer- cially zoned properties. TUKWILA HOTEL FIGURE 2 SITE PLAN The sP0 Grove • EXISTING CONDITIONS This section describes the existing transportation conditions in the vicinity of the project site, including the street system, traffic control devices, traffic operations, parking conditions, transit services, and pedestrian and bicycle activity. This discussion is intended to serve as a basis for subsequent analysis of project generated traffic. Roadway System The street system in the vicinity of the Tukwila Hotel is depicted on Figure 3 and is dominated by I -405, a limited access interstate freeway that serves as a bypass to I -5 and as a main roadway connecting several major cities along the east side of Lake Washington. This road is a 4 -lane divided roadway and has a full interchange at West Valley Road. West Valley Road is a 5 -lane road (2 lanes in each direction with a center 2 -way left turn lane) except in the section south of the site to Strander Boulevard where the road narrows to 4 lanes. To the north of the I -405 ramps, the road intersects with Grady Way (which connects with Renton), Southcenter Boulevard, and north onto I -5. North of Grady Way the name of the road changes to Interurban Avenue. To the south, Strander Boulevard is one of two major east /west arterials south of the site. Strander Boulevard is 4 lanes wide but widens to 5 lanes at its intersection with north /south cross streets to permit a left -turn storage lane. Strander Boulevard provides an excellent connection to the Southcenter regional shopping center and the Andover Business Park. The road forms a T- intersection with West Valley Road with special channeli- zation that provides for one left turn and one right turn lane on the east- bound approach. Southcenter Boulevard is the primary east /west arterial that lies to the north of the site and connects West Valley Road with City Hall, one of Tukwila's primary residential areas, and to the bridges that connect this section of the city to Southcenter and Andover Business Park. South - center Boulevard is a two -lane roadway with stabilized gravel shoulders toward its western end as it intersects with Interurban Avenue. 01 Bout'scant•, Blvd Tukwila Pkwy St Evans-Black Or Baker Blvd STATE PATROL MANUAL CONTROL DURING LONGACRES RACING SEASON Andover Perk E • Strand•r Blvd LEGEND: aTRAFFIC SIGNAL _ STOP SIGN • O• TUKWILA HOTEL FIGURE 3 STREET SYSTEM & TRAFFIC CONTROL 1 -6- Grady Way is a two -lane road that provides a connection between SIDEWALKS & OTHER STREET IMPROVEMENTS 1984 REALIGN ROADWAY 1983 Boutheanter Blvd REPLACE BRIDGE -1982 41 ruults Tukwila Pkwy St Sgt Evans -Black Dr Baker Blvd WIDEN TO 5 LANES 1985 -1987 IuIISIuI 1 1111111 0 • • NEW SIGNALIZATION AND CHANNELIZATION 1982 TUKWILA HOTEL FIGURE 4 PROGRAMMED ROAD IMPROVEMENTS Traffic Volumes and Patterns -9- � • • 8.700 (1300) 11 400 (1400) 4700 Bcuthcenter BI, 41 87.400 N/A 85.100 N/A Tukwila Pkwy St Abet 11.700 (1530) Evans-Black Dr r■INaaam► Baker Blvd W at • • 0 V 4 Strander Blvd 10.100 (1200) TUK WILA HOTEL FIGURE 5 ESTIMATED 1980 DAILY AND PM PEAK HOUR TRAFFIC VOLUMES -10- until 9:00 p.m. on weekdays and 11:00 to 11:30 a.m. and 6:00 to 7:00 p.m. on weekend days. In these situations, at least two Washington State Patrol officers are used to control traffic at the entrance off S 158th Street. In certain circumstances, three officers are required to direct traffic. The very heavy left turn demand as people exit from I -405 onto West Valley Road and then turn east on S 158th Street necessitates this manual traffic control. On an average weekday (a day without Longacres traffic volume), West Valley Road serves as a primary arterial feeding traffic to and from I -405. As one follows West Valley Road south, volumes diminish, suggesting that this road acts as a major collector- distributor arterial to Andover Business Park and Southcenter. Likewise, north of I -405, volumes on Interurban Avenue tend to decrease as one follows the road north toward I -405. South- west Grady Way serves as a bypass to I -405 for some people traveling be- tween Renton and Tukwila. While daily traffic volumes provide a general impression of travel patterns, it is appropriate to examine the peak hour traffic conditions as this is the time when traffic congestion normally becomes most notice- able. In the vicinity of the project site, the peak hour varies from one location to another and from one time to another, but, on the average, falls between 4 :15 and 5:15 p.m. on weekdays. The peak hour volume rep- resents between 10 percent and 16 percent of the average weekday traffic volumes which is higher than the regional average of 8 percent to 12 per- cent. This higher range can be explained by the fact that these roads serve major employment concentrations which typically are higher peak hour traffic generators. The evening peak hour traffic volumes on West Valley Highway ranges between 2300 and 3000 vehicles per hour (vph). In the evening the dominant flow is northbound, traveling toward I -405 (about 55 percent northbound and 45 percenttsouthbound). These peak hour patterns tend to reflect the strong influence of I -405 as a facil- ity that collects trips off the local streets to carry them to residential areas within the region. While these traffic volumes can give some impression of traffic patterns, they unfortunately do not give a perception of the congestion that exists along the road system. Techniques have been developed to assess the congestion levels that result with different street and traffic volume conditions. These techniques are described in the High- way Capacity Manual, 1965, the Traffic Engineering Handbook, and, most recently, in the Transportation Research Board's Circular 212. These techniques are referred to as levels of service (LOS) which range from LOS A, which is very good, to LOS F, which reflects a traffic flow that has deteriorated to a start - and -stop condition. In urban areas, most traffic engineers design improvements to operate at LOS C, but consider LOS 0 acceptable during peak periods as long as these conditions do not extend more than one hour within the peak period. LOS A suggests that traffic is flowing with minimal delay at STOP signs or traffic signals. LOS E indicates that the roadway is operating at capacity such that in- creases in traffic volume will tend to increase the length of queues rather than maintaining or reducing the length of the backup. An analysis of the major intersections in the vicinity of the site under average weekday peak hour conditions shows that the Strander Boulevard /West Valley Road intersection currently operates at LOS C to LOS D. The eastbound off -on ramp /West Valley Road intersection operates at LOS C, while the westbound off -on ramp /West Valley Road intersection operates at LOS 0 to LOS E. These calculations do not reflect the in- fluence of traffic when Longacres race track is in session. Based on conversations with Washington State Department of Transportation and Washington State Patrol, it appears that conditions along West Valley Road between Grady Way and S 158th Street deteriorate to an "at or near capacity" condition just prior to the opening of the track and following its closure. The levels of service calculated for these pri- mary intersections tend to be confirmed by the Transportation Improvement Plan prepared by Entranco Engineers. Any differences in the results tend to reflect improvements that have been madeito the intersections or ad- justments in traffic volume that have occurred within the last several years. ! ! 154 -158 -159 Southcantar 91vd 145 -146 Tukwila Pkwy 240 -340 Evans -Black Dr Baker Blvd 212 O • 0 C • TRANSIT RWTES 154 SEATTLE-AUBURN 158 - 159 SEATTLE -KENT EAST MILL 145 - 146 SEATTLE -PENTON 240 BELLEVUE -SEA TAG 340 At.RCRA V ILLAGE- SWTHCENTER Strandar Blvd LEGEND: gm" TRANSIT ROUTE • BUS STOP 0 • • TUKWILA HOTEL FIGURE 6 1979 -1980 ANNUAL AVERAGE ACCIDENT SUMMARY AND TRANSIT ROUTES -14- Routes 154, 158 and 159 all are oriented to provide peak hour service, .` combining to provide a total of about 14 runs during the morning peak period and the afternoon peak period. The schedules are oriented to pro- Along the western bank of the Green River and east of Christiansen Road, is a narrow strip of land often referred to as the Christiansen Green Belt. Presently there is a trail system that follows along the river from Strander Boulevard which ends at the south edge of I -405. This trail system starts up again north of I -405 in the vicinity of Fort Dent Park. Presently there is not a convenient connection between these two trail segments. There are no plans to have the trail system follow the east edge of the river across the project site. There have been plans to make pedestrian crossing improvements north of the site across I -405 that would link the two above - mentioned trail segments. Rail, Air and Waterborne Transportation There are two rail lines that operate in the vicinity of the project. Both run north -south and lie east of the West Valley Road. These railroads cross over low clearance bridges at S 158th Street, but travel under I -405 and SW Grady Way. Both rail lines are active and serve a substantial amount of train travel, including freight service into the Andover Business Park off spur lines which are lo- cated south of Strander Boulevard. The Green River is categorized as a navigable waterway and can be used by small boats up to its present location, but as a practical matter, it is not considered usable by commercial watercraft. FORECASTS OF TRAVEL DEMAND AND TRAFFIC ANALYSIS This section of the report outlines the assumptions and steps taken ' to arrive at an estimate of future traffic volumes associated with the Tukwila Hotel, and discusses the potential impacts of additional traffic on has suggested that traffic volumes have been declining, but over the long term, traffic volumes have been on the increase. Considering the large amount of vacant land in the area,it is expected that development will occur and will result in increased volumes. -17- For the purpose of this analysis, 1983 was used as a target year for forecasting, since by this time the hotel would be constructed and in full operation. Based on historical trends, traffic volumes were estimated to increase at a rate of approximately 2 percent per year. As a result of this increase, the volumes reflected on Figure 7 result. It can be noted that a slightly smaller than 2 percent average annual increase was applied to I -405 in order that the volume using the free- way balanced with those forecasted to travel along the local street system. Trip Generation Trip generation statistics assembled by the Institute of Trans- portation Engineers and the Arizona State Department of Transportation suggest that the average trip generation rates for hotels and motels range between 10.1 and 10.5 daily one -way trips per occupied room. A daily trip generation rate of 10.5 vehicle trips per unit (5.25 round trips) were used for this analysis. By applying this higher trip generation rate, a factor of safety will be introduced and a more conservative analysis will result. During the weekday evening peak hour when traffic conditions are at their worst, the Tukwila Hotel would be expected to generate between .65 and .73 one -way ve- hicle trips per occupied unit. These peak hour trips are relatively balanced, such that approximately an equal number of trips enter and leave the parking area. For the purpose of this analysis, a peak hour trip generation rate of 0.70 vehicle trips per occupied unit was applied (0.35 vehicle trips inbound and 0.35 vehicle trips out- bound). These trip generation rates reflect conditions where restaurants, cocktail lounges, meetings in banquet facilities or convention facili- ties, and other retail and small shops are included as part of the hotel. Consequently, it was not necessary to derive separate trip generation rates for the restaurant, lounge, and meeting room space. When these trip generation rates were applied to the proposed Tukwila Hotel, they yielded a total daily trip generation of 2,880 trips (1,440 round trips). During the evening peak hour, the project / • � �� 'S. • 'Sr _ x BoutAe.nt•. 81,4 LEGEND: DAILY V/0 PROJECT DAILY W/ PROJECT =OM XXX =MX XXX PN PEAK V/0 PROJECT i PM PEAK r/ PROJECT TUKWILA. HOTEL FIGURE 7 1983 TRAFFIC W/ AND W/O PROJECT -19- -20- form of limousine service. While this could account for a reduction of 10 to 20 percent in the overall guest travel, there has been no extra allowance given in order that the analysis presented in this report remains very conservative. Trip Distribution and Traffic Assignment Once the number of automobiles traveling to and from the site is known, it is necessary to identify the origins and destinations of these trips. Since this hotel is targeted to market itself primarily to weekday business activity, it is expected that traffic volumes will be about evenly distri- buted north and south. While the facility is expected to serve a primary market in the industrial commercial area south and west of the site, there will continue to be a substantial orientation to I -405 where traffic will split east to Renton and the Valley Freeway and west to I -5 and the Seattle - Tacoma Airport. As a consequence, approximately 55 percent of the daily traffic and 65 percent of the peak hour traffic is estimated to travel north on West Valley Road. The remainder of the daily traffic will be oriented to and from the south on West Valley Road, and a small percentage will use local roads on the west side of the Green River and walk across the pedestrian bridge. Once traffic reaches I -405, it is expected to split so that approximately 15 percent travels east to Renton and Bellevue and the remaining 35 percent travels west to I -405 and the Seattle- Tacoma International Airport. Approximately 5 percent of the daily traffic and 10 percent of the peak hour traffic is expected to use Interurban Avenue to travel north to I -5. While this is a very direct route to and from I -5, it is not expected to be used by many of the guests at the hotel because it is not well known. Local residents and people who travel in this area on a regular basis (e.g., employees) are expected to use this route, and this is why the peak hour travel distribution is higher. When this percentage distribution is applied to the trip generation, the traffic volumes presented on Figure 8 result. This shows that there will be an increase in the traffic volume along West Valley Road of ap- proximately 1,580 vehicle trips per day. This represents less than a 7 • Boum: onto Blvd Tukwila Pkwy Evans -Black Or 0 • - a: a€ O 0 C o% J • • 7 • • LEGEND X OF DAILY ::1PROJECT TRAFFIC pa IMCK % OF PM PEAK PROJECT TRAFFIC DAILY PROJECT TRAFFIC )0C 0( i NPM PEAK PROJECT TRAFFIC NEG = NEGLEGI BLE TUKWILA HOTEL. FIGURE 8 PROJECT GENERATED TRAFFIC -22- percent increase in the daily travel. During the peak hour the volume along West Valley Road north of the site is forecasted to increase to about 125 vehicle trips per hour, with the volumes being approximately equally split northbound and southbound, representing a 4 to 6 percent -24- Entrance Traffic Control Probably the most visible concern regarding this site relates to access directly on and off the site on West Valley Road. The main en- trance to the site is expected to attract the majority of traffic in and out of the development, provided the West Valley Highway will be modified to permit left turns in and left turns out of the driveway. A sketch illustrating such a design is presented on Figure 9. In addition to these channelization modifications, there is some question as to the need for a traffic signal that would serve both access into 158th Street (Longacres Race Track) and the project. Based on an analysis of the daily and peak hour traffic volumes in the vicinity of the northerly entrance, the need for a traffic signal is not warranted. While there will be selected times when signal warrant criteria are satisfied (e.g., following Longacres closing), warrants cannot be met for the full 8 -hour period. A traffic signal may, in fact, add to the congestion at the northern entrance, because it could not simultaneously respond to the peak surges generated by Longacres and maintain coordina- tion with the traffic signals at I -405. If a traffic signal were installed it would probably need to be turned to flashing operation and supplemented with Washington State Patrol manual control during the peak Longacres traffic periods. Another option for access control is to provide left -turn access in and out of the property, restricting the northern entrance to right -turn traffic in and out, and emphasizing the southerly entrance to the site as a major entrance. This would then divide the concentration of traffic volume in this area to two intersections (one at South 158th Street, and the other at the southerly entrance). Because these entrances are spaced a reasonable distance apart (about 250 feet), safety hazards typical of closely spaced entrances should not present a significant problem. The drawback to the southerly entrance is that it would create out -of- direction travel through the parking area and access would not work as efficiently as would the northerly entrance. It is recognized that many people may not be familiar with or under- stand the underlying philosophy supporting traffic signal warrant criteria. Thus, it is often useful to draw a comparison with similar existing N 0i °I [ 1 1 1 1 I I 1 ' I I l l I I l I fl l 1 1111111111 I I 111llll TUKWILA HOTEL FIGURE. 9 DETAILED 1985 DAILY TRAFFIC W /PROJECT The TtiAIV$Po development to illustrate the types of traffic conditions that may be created when a proposed development is completed. Such a comparable location exists along Pacific Highway S. east of the Seattle- Tacoma Airport. Here there are several hotels with primary access off Pacific Highway S. at.unsignalized driveways. Pacific Highway S. is a five -lane (two lanes in each direction with a center two -way left - turn lane) State highway (SR 99) that serves both through traffic and provides local access to roadside business including hotels. This road carries about 32,200 vehicles per day (about 9000 more cars per day than West Valley Road), and traffic control is provided by traffic signals at intersections with principal, cross streets that fall within 300 to 1000 feet of the driveways serving hotels used as examples in this comparison. The hotels are the Holiday Inn and the Sea -Tac Red Lion Motor Inn which have 255 rooms and 850 rooms, respectively. Both hotels have restaurants and lounges, and both have meeting rooms; the Sea -Tac Motor Inn strongly markets this space for seminars and group meetings. Observation of traffic patterns at both locations shows there are sufficient gaps in the traffic flow to permit left turns in and out of the parking area without excessive queuing in the center two -way, left -turn lane or in the parking lot. While some traffic is required to wait for a gap in the traffic flow, the wait was not observed to be any longer than the average waiting time for a traffic signal to change, except in the situation when there was a heavy surge in exiting traffic (e.g., when a seminar ends). Therefore, it is recommended that the intersection of West Valley Road /S. 158th Street be rechannelized to permit left turns in and out of the site, but a signal should not be installed. If extraordinary congestion problems result, then one of two improvements should be made: • Close the northerly entrance to left turns and rechannelize West Valley Road at the southerly entrance to permit left turns in and out of the site, or • Install a traffic signal system at the West Valley Road /S. 158th Street intersection even if it needs to be switched to flashing operation during Longacres' peaks. In any case, the applicant should agree to pay their proportional share of costs for installing a signal, since they would derive some benefit from -27- • • such an improvement. The applicant's share should be based on the pro- portion of traffic generated by this project divided by the total traffic volume passing through the intersection. In summary, the additional traffic volumes generated by the Tukwila Hotel would have a moderate impact on traffic movement in the vicinity of the project, especially north of the site. The relative increases created by traffic volumes generated by the Tukwila Hotel are somewhat similar to the fluctuation in traffic volumes from one day to the next within a given -28 • • • -30- • • • • B Frscat Impact Analysis Two models are designed for determining fiscal impacts on non - commercial uses. The Proportional Valuation Method and the Employment Anticipation Method. The Proportional Valuation Method recognizes municipal costs increase with the intensity of and use. The Employment Anticipation Method predicts a change in municipal costs based on an anticipated change in local employment levels and per capita municipal costs. This latter method was determined inappropriate because of the disproportionate number of employees to residents in Tukwila comparitive to comparable sized towns delineated in the model. The Proportional Valuation Method separates existing municipal expenditures associated with non - residential uses from total municipal expenditures by using proportional valuations and refinement coefficients. The future municipal costs associated with the proposed hotel are estimated by using proportional valuation and refinement coefficients applied to total municipal costs induced by the growth created by the hotel. These costs generated by the hotel are then assigned to service categories (general government, public safety, public works, health and welfare, recreation and culture). The associated revenues and expenditures of the proposed hotel incurred by the City of Tukwi la is an approximation based on analysis of the City of Tukwila 1982 Budget and a fiscal impact model referred to as "Proportional Valuation Method" by Burchell and Listokin, authors of the "Fiscal Impact Guidebook, Estimating Local Costs and Revenues of Land Development. Secondary sources of revenue are not computed in these figures. These sources include revenue generated from an increase in local employment during and after construction. Additional Services and goods demanded by hotel guests and associated taxes for goods and services. Expenditures The Proportional Valuation Method requires the fol Total Municipal Expenditures: Total Real Property Value: Commercial /Industrial Real Property Value: Proposed Hotel Property Value: lowing data: $ 4,329,080 702,681,000 562,144,800 11,000,000 Non- Residential real property value is not a statistic available from King County Assessors or City of Tukwila Finance Department. This figure was computed by multiplying the average 1980 sales price of single family, apartment, and condominium units in the Tukwila area by the total number of dwelling units in Tukwila. This approximate total residential market value is subtracted from the total real property value to compute the approximate non - residential property value. B:.1 TOTAL AND AVERAGE MARKET VALUES BY USE, Number of Dwelling Approximate Land Use Units or Businesses Total Market Value Average Market Value Residential 2,038 $ 93,662,950 Commercial /Industrial 814 (1978) 562,144,800 Other N/A 46,873,250 $ 45,958 690,595 N/A TOTAL $702,681,000 TOTAL- AVERAGE RES-I- DENIM"; SALES Number of Average Sales Approximate Use Dwelling Units Price — 1980 Total Market Value Single Family Apartments Condominiums 695 1,255 88 $59,741 37,341 60,000 $41,519,995 46,862,955 5,280,000 TOTAL 2,038 $93,662,950 Total property values for utilities, agricultural lands, public service facilities and vacant lands have been estimated to be approximately 5 percent of the total property value of all uses. Thus, commercial /industrial property values have been computed to be approximately 80 percent of the total property values, or approximately $562,144,800. Commercial /Industrial Municipal Expenditures are computed by multiplying the total municipal expenditures times the ratio of Commercial /Industrial Property Value by Total Property Value. LOCAL COMMERCtAL /I-NDUSTRTAL USE COST PROJECTION Commercial /Industrial Commercial /Industrial Total Municipal Property Value Municipal Expenditure = Expenditure x $16,942 $3,463,264 x Total Property Value $ 11,000,000 $562,144,800 x .25 1 The refinement coefficient is based from case studies by Rutgers University in 1977. "Fiscal Impact Guidebook" by Burcheil and Listokin The approximate municipal expenditures expected to be created by the pro- posed hotel is $16,942. 'B2 Burchell and Listokin in Fiscal Impact Guidebook, Estimating Local Costs and Revenues of Land Development" have estimated the average percentage distribution of total costs to municipal service categories, as listed below: B. Sales Taxes,— The estimated revenue generated by the hotel will be approximately $5,000,000 per year. IIREVENUE GENERATED BY PROPOSED HOTEL-1 Expected Revenue Revenue Generated IINumber of Rooms Per Room Per Year by Proposed Hotel 274 $18,201 $4,987,074 II1 "Trends in the Hotel Industry in the Pacific Northwest," 1981 Edition, Pannell Kerr Forster, CPA The breakdown of sales taxes on this project is shown on the following table: B 3 PROJECTED SALES TAX (51 Percent of Current Fund) ' • • REVENUE IQ OTHER JURISDICTIONS Property Tax to School District $ 23,705 Property Tax to Emergency Services 1,419 Property Tax to G.O. Bond 5,533 ' Property Tax to State 52,140 Sales Tax to Pietro 29,922 Sales Tax to State 274,289 � a, J -82 -208 CULTURAL RESOURCE EVALUATION OF SUBMITTED T0: CHRISTENSEN GROUP, INC. 2500 NORTHEAST ANDRESEN VANCOUVER, WASHINGTON 98661 SUBMITTED BY: GEO -RECON INTERNATIONAL, LTD. P.O. BOX 55189 SEATTLE, WASHINGTON 98155 � IfuLCJ�E. RINITA DALAN Approved by: STEVE WILKE STAFF ARCHAEOLOGIST VICE PRESIDENT JANUARY 29, 1982 ACKNOWLEDGEMENTS Numerous individuals provided assistance or information during this project. Appreciation is due Mr. Jon Potter of R. W. Thorpe and Associates, Mr. Ken Baines of Christensen Group, Inc., and Mr. George Yamane and Mr. Tom Grutowski of Shannon & Wilson, Inc. Ms. Helen Nelsen and Ms. Sidonia Nelsen Kettering generously shared their knowledge of the area's history and land use. INTRODUCTION This report presents the results of an archival and field investigation designed to determine if the lands encompassed by the proposed Tukwila Hotel were associated with any people or events or contained any physical remains of potential local, regional or national significance. LOCATION AND DESCRIPTION OF PROPOSED DEVELOPMENT The proposed Tukwila Hotel site is located within the Southwest Quarter of the Southwest Quarter of Section 24, Township 23 North, Range 4 East, Willamette Meridian. The site is bordered on the south and west by the Green River, and on the east by West Valley Highway. The total acreage of the site is 5.47 acres (Figure 1). Approximately 90 percent of the site will be developed. Available information states that the proposed development will include an eight story hotel with space for approximately 270 guest rooms and a paved area with parking for 534 vehicles. ENVIRONMENTAL SETTING Geology and Hydrology The proposed hotel site lies within the northern portion of the Puget Trough physiographic province as defined by Franklin and Dyrness (1973). The geology and topography of this northern portion, known as the Puget Sound Basin, have resulted almost entirely from the occupation of the region by a lobe of the Cordilleran ice sheet during the Pleistocene (Folsom 1970, Mark and Ojamaa 1972). There were apparently at least four distinct episodes of glaciation during the Pleistocene, the Vashon glaciation being the most recent. Glacial episodes were separated by nonglacial intervals; during which erosion, weathering, and nonglacial sedimentation occurred. During the Vashon glaciation, the lower Green River Valley was scoured to its present width and to a depth of over 15 meters below present sea level. As the ice sheet retreated, it dammed the northern end of the valley, and a lake of over 76 meters in depth was formed. As the ice continued to melt, the lower valley became a marine embayment much like other arms of the present Puget Sound. Following the glacial retreat, the Green River_ quickly incised a meandering path across the Black Diamond area instead of resuming the more northerly route it had followed during pre - glacial times. The river then flowed into the arm of the Sound occupying the lower valley. For some time during, and possibly after the retreat of the glacier, the Cedar River flowed southwest into the Green. By 13,000 years ago, however, it followed a more direct route to the Sound along its present path and built a fan across another arm of the valley to form Lake Washington. About 5,000 years ago, the Osceola mudflow swept down from the upper slopes of Mt. Rainier, flowed down the White River valley and spilled out across the lowland, flow- ing on into the narrow lower Green Valley arm of the Sound, and eventually came to rest just north of Auburn as a submarine deposit. As the White River channel was obliterated, the river cut a channel northward and joined the Green River at the present site of Auburn. The White River deposited coarse debris eroded from the mudflow deposit and sediment derived from the Mt. Rainier area to form a massive fan into the lower valley. Finer sediments were carried beyond the fan into the marine embayment. In this manner, the combined flows of the White, Green, and eventually the Black Rivers contributed sediment to a narrow delta which gradually crept northward and filled the lower valley (Dunne and Dietrich 1979: A- 5 -A -6). During the last 75 years, numerous changes have occurred in the stream pattern of the Green River. Prior to this time, the Green River joined the White River near the site of present -day Auburn. This combined stream was known as the White River Valley to the point where it was joined by the Black River near Tukwila. From the Black River to Elliott Bay, the river was known as the Duwamish. The waters of Lake Washington had an outlet through the Black River, and the Cedar River could flow into either the Black River or Lake Washington. During a serious flood in 1906, debris blocked the main channel of the White River, which then cut its way southward into the Stuck River, which flowed into the Puyallup River and hence to Commencement Bay at Tacoma. In subsequent flood - control efforts, the diversion of the White River was made permanent. In 1913, dredging and straightening began on the lower Duwamish in order to create a waterway by which oceangoing liners might come into Seattle (Cleveland High School 1974:72). In 1917, the Lake Washington Ship • 4- • The prevailing wind is from the southwest in the fall and winter, gradually shifting to the northwest in late spring and summer (Phillips 1968:4 -12). The mean annual temperature is generally around 51° to 52 °F in the lower valley with July being the warmest month and the coolest temperatures occurring in January. The length of the growing season is approximately 175 days (U.S. Army 1949:26). Flora and Fauna The study area lies within the Puget Sound area of the Tsuga heterophylla zone, one of the major vegetational areas defined by Franklin and Dyrness (1973). Major forest tree species in this zone include Douglas -fir (Psuedotsuga menziesii), western hemlock (Tsuga heterophylla), and western red cedar (Thuja plicata). Black cottonwood (Populus trichocarpa) and Oregon ash (Fraxinus latifolia) with bigleaf maple (Acer macrophyllum) and red alder (Alnus rubra) are species which are found along the major watercourses. Franklin and Dyrness (1973) describe a spectrum of understory communities arranged along moisture gradients within this zone. In the Puget Sound area, the most common species are vine maple (Acer circinatum), broadleaf rhododendron (Rhododendron macrophyllum), Pacific dogwood (Cornus nuttalii), red huckleberry (Vaccinium parvifolium), Oregon grape (Berberis nervosa), salal (Gaultheria shallon), and trailing blackberry (Rubus ursinus). The Green River area supports a diverse fauna due to the presence of numerous habitat types including riparian woodland, fields, marshes, shrub swamps, ponds, mixed forest, coniferous forest, developed areas, and the river itself. 45- KI -51, is located along the abandoned channel of the Black River near Renton. 45 -KI -51 appears to be the remains of a proto- historic longhouse occupied during the first two decades of the 19th century (45- KI -51D) and the remains of what may have been a series of small dwellings occupied for a brief period in the mid -19th century (45- KI- 51A)(Jim Chatters, personal communication). Excavations at both 45 -KI -59 and 45 -KI -51 indicate a primarily riverine adaption of their inhabitants, with a primary focus on salmon. Hunting and gathering also appear to have been practiced, and marine resources were utilized to some extent. There appears to have been more of an emphasis on marine resources at 45- KI -23, a probable result of its location close to the Sound. A check of site files maintained by the Office of Public Archaeology at the University of Washington reveals that in 1963, a shell midden site (45 -KI -6) was located just north of the study area. The site was recorded as containing shell, charcoal, fire- cracked rock, wood, and chipped stone. The site lay in the path of a relocation channel for the Green River and was hence completely destroyed. Helen Nelsen, daughter of James Nelsen who settled in the area in 1884, states that Indians camped at this point on the river when her family settled in the area (Helen Nelsen, personal communication) . Ethnography Ethnographic sources record several Native American groups inhabiting the Green River drainage system. The Duwamish inhabited the area from the river's mouth up to and including the Black and Cedar Rivers; the Sammamish and Sktahlmish were the Lake Washington groups; the Smulkamish were located at what was then the head of the White River, the Skopamish people lived on what was then the upper Green River, and the-Stkamish lived on what was then called the main White River (from the confluence of the White and Green Rivers to the mouth of the Black River)(Lane 1973a). All groups' were included together under the Treaty of Point Elliot, signed January 22, 1855. The settlement pattern of these groups was seasonal. ' In the winter months, people gathered in politically autonomous groups at permanent winter village sites. These permanent villages were occupied by the entire village group only during the winter, at other times of the year, portions of the population dispersed to secure food and other supplies as they became available. Houses at the winter village sites were constructed on bits of high, well drained ground. Village size varied from one to three houses, with each house large enough for four to six families (Smith 1940:4). Houses were rectangular and were constructed of cedar planks. These planks were ' fastened to a superstructure built of large cedar logs P g g (Lorenz et al. 1976:19). After the settlement of the valley by non - Indians, the house style changed. Instead of multi - family dwellings, several began to build homes for single families (Noel 1980:11). In the spring, people began to disperse from their ' winter villages to the beach areas where mollusks and other marine resources were collected. Certain species were consumed on the spot while others were processed for later • -11- • History The first settlers in what is now King County settled near the mouth of the Green River in 1850 and 1851. With the opening of the road through Naches Pass in 1853, a new wave of settlers arrived in the valley. From 1853 to 1855 numerous settlers acquired land in the valley under the Federal Donation Land Act. One of these settlers, Henry Meter (Meader) claimed land encompassing the project area. The Henry Meter claim is shown on the 1862' General Land Office (GLO) plat map, although no structures or improvements are indicated on the property. The first task facing these early settlers was to clear the land. In the area bordering the river, except for the few natural prairies, the growth was particularly dense. Maple, vine maple, cottonwood, ash, and alder were interspersed with conifers. The Native Americans in the region were often employed to help with clearing and with the planting of crops (Bagley 1929:693). Logging operations were deferred in the valley, as fir and cedar grew either in scattered stands or in a tangle of unmerchantable growth. In addition, the sandbars and meandering course of the lower Green River made the stream unsuitable for floating rafts or logs to the mills (Pence 1946:76) . These early settlers were occupied with farming, although many of them had been trained in other trades. This dependency of the economy on agriculture has remained constant through time, although the principal source of farm income has changed. Up to the 1940's, industrial development of When James and his wife Mary Dobler married, they lived in a small house at 16010 West Valley Road. In 1905, Mary consulted with a local carpenter to design a new home. This is the home referred to in the King County Office of Historic Preservation records. James and Mary had four children: Harry J. (1885- 1975), Frank A. (1890 - 1972), Sidonia (1895- ), and Helen A. (1906- ). These latter two children were both interviewed and provided considerable information on the history of the project area. A 1935 aerial photograph shows only a portion of one structure lying within the project area. A barnyard or turnaround is also shown to the west and south of this building. The rest of the project area appears to be in pasture at this time. FIELD METHODS AND RESULTS A complete coverage survey of the proposed Tukwila Hotel site was conducted on January 26, 1982. Surveyors walked transects across the site, with spacing between surveyors varying from seven to 10 meters. Because surface views were hindered by a cover of grass, the surface was cleared with a shovel every five to 10 meters. As the river was quite high, surveyors were not able to inspect the river bank. The project area was also systematically cored with a one -inch push tube sampler. Cores were taken every 30 to 35 meters to a depth of two meters, except in the northeastern portion of the site where rock fill prevented coring. . -14- • lying the Y g on surface (Figure 1) . Five cores were taken within this area to a depth of 2.7 meters (Figure 1). The scatter of shell on top of �._ the ground surface proved to be two to three centimeters thick. No shell layer was encountered below the soil horizon. A few small flecks of charcoal and one piece of shell were recovered in two separate cores at a depth of 60 to 70 centi- menters. A four -inch bucket auger was also employed to a depth of one meter, but no cultural soils were noted. Contact with personnel at Shannon & Wilson, Inc., who had conducted soil borings at the site in 1973 and again in 1982, revealed that the shells had come from a depth of 101 -119 feet (30.8 -36.3 meters). The depth of this layer and its location above a very dense, grey, silty sandy gravel suggests that it is a natural not a cultural deposit. It was most likely deposited following the retreat of the glacial ice sheet when the lower valley was a marine embayment (refer to page 2). Also noted were an area containing numerous broken cement slabs and a large (76 X 4 meter) linear pile of milled boards and posts (Figure 1). Associated with this wood dump were a metal trough, part of a wagon, bed springs and ceramic pipe. According to Mrs. Kettering, this lumber and other debris came from the interibr of the auction barn when it was remodeled (Sidonia Nelsen Kettering, personal communications). Modern debris includingstyrofoam, metal, plastics, beer bottles, glass, wood and cement were scattered throughout the project area. CONCLUSIONS AND RECOMMENDATIONS On the basis of our investigation, it is concluded that no remains of local, regional or national significance are present within the bounds of the proposed Tukwila Hotel site. Therefore, within the limits of the methods employed, it is believed that the proposed development should have no adverse effect on significant cultural resources. In light of the poor ground visibility and the probability of a large amount of alluvial deposition over the area, however, it is recommended that a qualified archeologist conduct on -site monitoring during land clearing, access road construction and building site prepara- tion. In the absence of on -site monitoring, should cultural materials be uncovered during the development of the property, a qualified archeologist should be immediately contacted and the materials evaluated. PROPERTY LINE'. i REDEPOSITED SHELL KEY: APPROXIMATE LOCATION X APPROXIMATE CORE LOCATION NOTE: DRAWING ADAPTED FROM JENSEN KRAUSE • SCHOENLEBER SITE PLAN' DATED NOVEMBER 1981. 0 GREEN RIVER 0 3 4 90 120 SCALE IN FEET GEO -RECON INTERNATIONAL PROPOSED TUKWILA HOTEL SITE CULTURAL RESOURCE INVESTIGATION JANUARY 1982 L • • J -82 -208 FIG. 1 Bagley, C. B. BIBLIOGRAPHY 1930 The Indians of Puget Sound. University of Washington Publications in Anthropology 4(1):1 -84, University of Washington Press, Seattle. Jones and Jones 1979 A River of Green. Planning report to the King County Department of Planning and Community Development. Lane, B. Lane, B. 1973a Anthropological report on the identity and treaty status of the Muckleshoot Indians. Unpublished Ms. 1973b Anthropological report on the traditional fisheries of the Muckleshoot Indians. Unpublished Ms. Lorenz, T. H., G. R. Spearmann, and J. V. Jermann 1976 Archaeological testing at the Duwamish No. 1 Site, King County, Washington. Office of Public Archaeology,' University of Washington, Reconnaisance Report 8, Seattle. Mark, D. M. and P. M. Ojamaa 1972 The glacial geomorphology of the Puget lowland, Washington and British Columbia: further comments and references. Northwest Science 46:336 -338. Noel, P. S. 1980 Muckleshoot Indian History. Auburn School District No. 408, Auburn, Washington. Pence, W. R. 1946 The White River Valley of Washington. MA thesis, Department of Geography, University of Washington, Seattle. Phillips, E. L. 1968 Washington climate for these counties: King, Kitsap, Mason, Pierce. Cooperative Extension Service, College of Agriculture, Washington State University, Pullman. Salo, E. and R. L. McComas 1979 Aquatic resources of the Green - Duwamish River; with enhancement possibilities. Appendix B in A River of Green, a planning, report to the King County Department of Planning and Community Development by Jones and Jones. Smith, M. 1940 The Puyallup - Nisqually. Columbia University, Contributions to Anthropology 32. U. S. Army Corps of Engineers 1949 Green and Duwamish Rivers, and Duwamish Waterway, Seattle Harbor, Washington. K)HN SPELLMAN Governor STATE Of WASHINGTON OFFICE OF ARCHAEOLOGY AND HISTORIC PRESERVATION 111 West Twenty -First Avenue, KL -11 • Olympia, Washington 98504 • (206) 753 -4011 Rick Seaborne R.W. Thorpe & Associates 815 Seattle Tower 3rd & University Seattle, WA 98101 IACOH ill( )MAS [iirt'c.U,r Date: January 15, 1982 Log Reference: 282- C -KI -03 Project Title: proposed hotel development Tukwila Dear Applicant: We have reviewed the materials forwarded to us for the above referenced project and would like to make the following comments: REVIEW RESULTS: A search of our records, including the National and State Registers of Historic Places and the Washington State Archaeological and Historic Sites Inventories, indicates the following for the project area: _ project area has not been surveyed for the presence of cultural resources. project area has been surveyed for historic/ archaeological resources: intensive survey/ reconnaissance survey/ partial survey. X surveys have been conducted in the general vicinity of the project area. _ sites as noted below have been identified in the project vicinity: historic sites: National Register/ State Register/ Inventory. archaeological sites: National Register/ State Register/ Inventory. X known site distributions, ethnohistoric sources, and /or consultation with others indicates that the project area has X high/ moderate/ low potential for the occurrence of previously unidentified cultural resources. _ no sites have been recorded in the immediate project vicinity, however, this may be due more to a lack of information than an actual lack of resources; please note above whether or not the project area has been professionally surveyed for cultural resources. IMPACT ASSESSMENT: Based on the information provided for our review, we have determined that the proposed project /plan: will have no effect on cultural resources. _ will have no adverse effect on cultural resources. will have an adverse effect on cultural resources noted below: we do not have sufficient information to determine whether or not the project or proposal will affect cultural resources. RECOMMENDATIONS: Based on the results of our records searches, consultations, and the materials provided for our review, we make the following recommendations: no further consideration is necessary at this time. _ site preparation and other ground disturbing activities should be monitored by a professional archaeologist. X professional surveys of the project area should be conducted prior to further action: historic/ x archaeological/ architectural. _ resources have been identified as noted above; the current condition of these resources and the potential for impact to them should be professionally assessed prior to further action. _ a plan to adequately mitigate anticipated impacts should be devised in consultation with this office and implemented prior to further action. we do not have sufficient information on which to base recommendations. The above comments are based on the information available at the time of this review. Should additional information become available, our assessment may be revised. In the event that cultural materials are inadvertently discovered during construction, work in the immediate vicinity should be discontinued and this office notified. Please indicate the log reference number noted above in further communications concerning this project. A copy of these comments should be included in subsequent environmental documents. Sincerely, Sheila Stump Archaeologtst db Form AHP R -5 (2/81) CHAPTER 5 - ENVIRONMENTS IIThe designation of shoreline environments is based on: 1) the existing shore, channel and cultural values as determined in the inventory of shoreline characteristics; 2) the existing land uses and those proposed in the Comprehensive Plan; and 3) the manage- ment objectives. CHAPTER 6 - USE REGULATIONS , 6.1 6.2 • • 8. Diking for flood control purposes. B. The River Zone shall consist of 40 feet, as measured on a horizontal plane, from the mean high water mark and shall contain no uses other than: 1. Public and /or private foot paths or trails. 6.3 • • 5. Other . facilities such as pumps, pipes, etc. shall be suitably screened with hardy plant material. 6. Utility easements where necessary shall be landscaped with live groundcover or natural grass cover. LOW IMPACT ZONE: The Low Impact Zone is a transitional area outside the River Zone and within 100 feet of the mean high water mark intended to minimize physical and visual impact on the River Zone while accommodating shoreline development and shall contain no uses other than those allowed in the River Zone and the following: 1. Structures not to exceed thirty -five (35) feet in height. 2. Parking /loading and storage facilities. 3. Railroad lead and spur trackage. 4. Utilities and signs not to exceed regulations of the under- lying zoning district. Low Impact Zone Uses Shall Conform to the Following Standards: 1. Structures shall be sited and appropriately landscaped in accordance with underlying zoning district regulations (Appendix C). 2. Access roads shall be located no closer than ten (10) feet to buildings, spur tracks or parking /loading and storage facilities and the effective set -back area shall be suitably landscaped. This shall not prohibit access and egress points between an access road and the described facilities. 3. Where access roads exist parking /loading and storage facilities shall be appropriately screened . rom the river with: a. A solid evergreen screen of a ::minimum six (6) foot. height. OR b. Decorative fence six (6) feet high. (NOTE: Chain link fence shall be planted with ivy or other trailing vine.) OR c. Large hardy shade trees as per requirements for access roads. OR d. Earth berms at a minimum of four (4) feet high suitably planted with live groundcover or natural grass. 6.4 4. Lead trackage shall be no closer than fifteen (15) feet to parking /loading and storage facilities, and shall be suitably landscaped. High Impact Zone Regulations ' SHORELINE USES ALLOWED IN THE HIGH IMPACT ZONE ARE: 6.5 E Vegetation Found at the Site Common !!acre TREES: D 1 ack Cottonwood Sig -leaf Maple Oregon Ash SHRUBS: Pacific Willow Japanese Knotweed Himalayan Blackberry Red Elderberry HEREACEOUS PLANTS: Stinging Nettle Sourdock Buttercup var. Clover var. Foxglove Common T u l l e i n English Plantain i,'ayweed Chamomile Hairy Cats -ear Mid Id Lettuce Common Tansy Common Dandelion Fescue -grass var. Foxtail Barley Bluegrass var. Source: R.W. Thorpe and Associates Scientific Nome Populus trichocarpa Acer macrophyllum Fraxinus Iatifolia Salix Iasiandra Polygonum cuspidatum Rubus discolor Sambucus racenosa Urtica lyallii Rumex crispus Ranunculus sp. Trifolium spp. Digitalis purpurea Verbascum thapsus Plantago lanceolata Anthemis cotula Hypochaoris radicata Lactuca sp. Tanacetum vu I Bare Taraxacum officinale Festuca sp. Hordeun murinum Poa sp. Mammals of the Lower Green River Watershed Common Name American Oppossum Cinerous Shrew Vagrant Shrew Dusky Shrew Water Shrew Marsh Shrew Trowbr i dges' s Shrew Shrew -mole Townsend's Mole Coast Mole Various Bats Eastern Cottontail Snowshoe Hare Mountain Beaver Townsend's Chipmunk Eastern Cray Squirrel Fox Squirrel Douglas's Squirrel Northern Flying Squirrel Beaver Common Deer Mouse Mountain Deer Nouse Bushy - Tailed Wood Rat Gapper's Red- Backed Mouse Townsend's Meadow Mouse Long - tailed Meadow Mouse Oregon Meadow Mouse Muskrat Norway Rat Black Rat House Mouse Pacific Jumping Mouse Porcupine Nutria Coyote Red Fox Black Sear Raccoon Short - tailed Weasel Long-tailed Weasel Mink Spotted Skunk Striped Skunk River Otter Bobcat Black- Tailed Deer Scientific Nacre Didelphis marsupialis Sorex cinereus Sorex vagrans Sorex obscurus Sorex palustris Sorex bendirei Sorex Trot: br i dge i ''leurotrichus gibbsi Scapanus townsendi Scapanus orarius Ch1roptera Sylvilagus floridanus Lepus americanus Aplodontia rufa Eutam i as townsendi Sciurus carolinensis Sciurus niger Tamiasciurus douglasi Glaucomys sabrinus Castor fiber Peromyscus manicu1atus Peromyscus oreas Nleotona cinerea Clethrionorys gapperi 61 i crotus townsend 1 Microtus longicaudus icrotus oregoni Ondatra zibethicus Rattus norvegicus Rattus rattus Mus muscu I us Zapus trinotatus Erethizon dorsatum Myocastor coypus Canis latrans Vulpes vulpes fulva . Ursus americanus Procyon lotor i iustel a erminea Muute 1 a frenata Lutreola lutreola Spilogale putorius. Mephitis mephitis Lutra canadensis Lynx rufus Odocoileus hemionus Source: East Side Green River Watershed DEIS, U.S. Soil Conversation Service, 11/78 Birds j the Lower Green River Watershed Common Name Common Loon Horned Grebe Western Grebe Pied - Billed Grebe Double- Crested Cormorant Great Blue Heron Green Heron American Bittern Whistling Swan Canada Goose White-Fronted Goose Snow Goose Mallard Gadwall Pintail Green-Winged Teal Blue-Winged Tea l Cinnamon Teal European Wigeon American Wigeon or Baldpate Shoveler. Wood Duck Redhead Ring - Necked Duck Canvasback Greater Scaup Lesser Scaup Common Goldeneye Bufflehead Harlequin Duck White-winged Scoter Surf Scoter Common Scoter Ruddy Duck Hooded Merganser Common Merganser Red- Breasted Merganser Goshawk Sharp - shinned Hawk Red - Tailed Hawk Bald EaQle Marsh Hawk Osprey Gyrfalcon Peregrine Falcon Pigeon Hawk Sparrow Hawk Ruffed Grouse California Quail Ring- Necked Pheasant Virginia Rail Scientific Name Gavia immer Podiceps auritus Aechmophorus occidentalis Podilymbus podiceps Phalacrocorax auritus Ardea herodias Butorides virescens Botaurus Ientiginosus Olor columbianus Branta canadensis Anser albifrons Chen hperborea Anas platyrhynchos Anas strepera Anas acuta Anas carolinensis Anas discors Anas cyanoptera Maraca penelope Maraca americana Spatula clypeata Aix sponsa Aythya americana Aythya collaris Aythya valisineria Aythya marila Aythya Affinis Bucephala clangula Bucephala albeola Histrionicus histrionicus Melanitta deglandi t'elanitta perspeicillata Oidemia nigra Oxyura janaicensis Lophodytes cucullatus Mergus merganser Mergus serrator Accipiter gentilis Accipiter cooperii Buteo jamaicensis Haliaeetus leucocephalus Circus cyaneous Panion haliaetus Falco rusticolus Falco peregrinus Falco columbarius Falco sparverius Bonasa umbellus Lophortyx californicus Phasianus colchicus Railus limicola American Coot Killdeer Common Snipe SpottedSandp i per Greater Yellowlegs Lesser Ye l l ow l eas Pectoral Sandpiper Least Sandpiper Dunlin Long - billed Dowitcher !Western Sandpiper Wilson's Phalarope Glaucous - winged Gull Western Gull) California Gull Ring - billed Gull Mew Gull Bonaparte's Gull Band - Tailed Pigeon Rock Dove Mourning dove Barn Owl Snowy Owl Spotted Owl Short -Eared Owl Common Nighthawk Black Swift Vaux' s Swift Anna's Hummingbirdd Rufous Hummingbird Belted Kingfisher Red - Shafted Flicker Hairy Woodpecker Trail's Flycatcher Western Flycatcher Western Wood Pee Wee Olive -Sided Flycatcher Horned Lark Violet -Green Swallow Tree Swallow Bank Swallow Rough-Winged Swallow Barn Swallow Cliff Swallow Purple Martin Steller's Jay Common Crow Black- Capped Chickadee Chestnut - Backed Chickadee Common Bushtit Winter tW ren Bewick's Wren Long-Billed Marsh Wren Robin Varied Thrush Fulica americana Cheradrius vcciferus Capella gallinaco Actitis macularia Totanus me I ano I eucus Totanus flavipes Erolia one I anotos Erolia minutilla Erolia alpina Limnodromus sco1opaceus Ereunetes mauri Steganopus tricolor Larus glaucescens Larus occidentalis Larus californicus Larus delawarensis Larus canus Larus philadelphia Columba fast i ata columba livia Zenaidura macroura Tyto alba Nyctea scandiaca Strix occidentalis Asio flammeus Chordeiles minor Cypseloides niger Chaetura vauxi Calypte anna Selasphorus rufus Mecaceryle alcyon Culaptes cafer Dendrocopos Pubescens Empidonax trai 11 i i Empidonax difficilis Contopus sordidulus Nuttallornis borealis Fremophila alpestris Tachyccineta thalassina Iridoprocne bicolor Riparia riparia Stelgidopteeryx ruficollis Hirundo rustica Petrochelidon pyrrhonota Procne subis Cyanocitta stelleri Corvus brachyrhynchos Parus atricapillus Parus rufescens Psaltriparus mininus Troglodytes troglodytes Thryomanes becwicki1 Telnatodytes palustris Turdus migratorius Ixoreus Naevius Swa i nson' s Thrush Mountain Bluebird Western Bluebird Golden-Crowned Kinglet Ruby- Crowned Kinglet !''titer P i p i t Cedar Waxwing Northern Shrike Starling Solitary Vireo Red -eyed Vireo Warbling Vireo Orange - Crowned Warbler Hermit Warbler Yellow Warbler Townsend' s Warbler Black-Throated Gray Warbler Yellowthroat Wilson's Warbler House Sparrow Western i•ieadow 1 arkk Red - !'dinged Blackbird Bullock's Oriole Brewer's Blackbird Brown- Headed Cowbird Western Tanaer Black- Headed Grosbeak Pine Grosbeak Purple Finch House Finch Pine Siskin American Goldfinch White-Winged Crossb i 1 1 Rufous -Sided Towhee Slate- colored Junco Savanna Sparrow Chipping Sparrow White-Crowned Sparrow Golden- Crowned Sparrow !White- throated Sparrow Fox Sparrow Lincoln's Sparrow Song Sparrow Hylocichla ustulata Sialia currucoides Sialia mexicanna Regulus satrapa Regulus calendula Anthus spinoletta Bobycilla cedrorum Lanius excubitcr Sturnus vulgaris Vireo solitarius Vireo olivaceus Vireo gilvus Vermivora celata Dendroica occidentalis Cendroica petechia Dendroica townsendi Cendroica nigrescens Geothlypis tichas 'fi isonia pusi I la Passer donesticus Sturnella neglecta Euphagus cyancephalus Icterus bullockii Euphagus cyancophalus ,olothrus ater Piranga Iudoviciana Hesperiphona vespertina Pinicola enucleator Carpodaccus purpureus Carpodacus nexicanus Spinus pinus Spinus tristis Loxia leucoptera Pipilo erythrophthalmus Junco hyemalis Passercu1us sandwichens1s Spizella passerine Zonotrichia leucophrys Zonotrichia artricpilla Zonotrichia albicollis Passerella iliaca elospiza lincolnii elospiza melodic Source: East Side Green River Watershed DEIS, SCS, November, 1973. Fish Species of the Green River Common Name Prickly Sculpin Threespine Stickleback Brown Bullhead Large -mouth Black bass Chum Salmon Coho Salmon Chinook Salmon Yellow Perch Mountain whitefish Long -Nose Dace Speckled Dace Cutthroat Trout Steelhead Trout Rainbow Trout Dolly Varden Trout Starry Flounder Scientific Name Cottus asper Gasterosteus aculeatus Ictalurus nebulosus Micropterus salmoides Oncorhynchus keta Oncorhynchus kisutch Oncorhynchus tshawtscha Perca flavescens Prosopium williamsoni Rhinichtays cataractac Rhinichtays oculus Salmo clarki Salmo gairdneri Salmo gairdneri Salvelinus malma Prosopium stellatus Source: East Side Green River l'atershed DEIS, SCS, November, 1978. Cityx�"^ of K�U UKU����'UU Fire Deportment Frank Todd Mayor Hubert H. Crawley Fire Chief Jon Potter, APA R.W. Thorpe & Associates 815 Seattle Tower Third & University Seattle, Washington 98101 Dear Mr. Potter: December 11, 1981 With realard to your ouestionnaire of December 7; 1, Total number of alarms for the year of 1981 will be about 1500, 2^ Approximately 60-65% of our responses are for emer5iency aid. 3^ Type of responses are widely varied. - Vehicular, coronary, industrial accidents, etc. 4^ Fire flow almost anywhere in the City is adeouate and usually better than in surroundinA Jurisdictions, 5^ 25 Firefisthters, 1 Chief, 1 Fire Marshal/Asst^Chief, & 1 Fire Prevention Officer, 3 pumpers, one 100 ft, aerial ladder, aid car & support vehicles, 6. Response time to your proposed site would be 2 minutes or less. 7, Fire Rating = Class IV 8, Any project of this magnitude will naturally increase the work load on all City Departments and Services. 9, See attached Ordinance copy, Yours truly, The Tukwila Fire Prevention Bureau cc:TFD file Planning Dept. Enc|':Ordinonce No. 1167 City of Tukwila Fire Department, 444 Andover Park East, Tukwila, Washington 98188 (206) 575-4404 City of Tukwila 6200 Southcenter Boulevard Tukwila, Washington 98188 Police Department 433 -1808 Mr. Jon Potter, APA R.W. Thorpe & Associates 815 Seattle Tower 3rd & University Seattle, Washington 98101 Dear Mr. Potter: The following information is being supplied to you pursuant to your request of December 7, 1981. I hope that you will find it helpful. We have responded to your questions point by point: 1. 27 Commissioned Officers. 2. There have been seven reported accidents in the area in 1981, one of which was injury. During Longacres season the Washington State Patrol is on duty there and there are several low speed "fender bender" type accidents that are handled by them and not reported to Tukwila. 3. None known to us at this time during 1981. 4. Emergency Response. Time probably averages betwen 2 -3 minutes. 5. Present service level is adequate in the City. 6. This project will definitely create adverse impacts on the service level to the rest of the City. Experience with this type of establishment already in the City indicates that a broad variety of police problems will be encountered ranging from car prowls and burglaries, to alcohol related problems such as customer problems, assaults, and Driving While Intoxicated. Time spent by the police on problems generated by this proposed establishment will definitely have an adverse impact on the service level currently provided. 7. Particular care must be taken to plan .. for ingress /egress to the property for both vehicles and. pedestrians. This is a very heavily travelled area at both morning and evening rush hours. The traffic problem becomes severe during the Longacres racing season. Given the close proximity of this complex to the horse racing track it is only logical to assume that there will be an increase in both foot and vehicle traffic between this area and the track. Careful plan- ning and quality engineering must be done to insure that we do not create a traffic situation which will endanger both life and property. Sincerely, Lt. Patrick L. Phelan Administrative Commander slj PREAMBLE GEOTECHNICAL REPORT The firm of Shannon and Wilson, Inc. provided the proponent with two studies to determine the most feasible foundation for the proposed hotel. The January 1982 study examined both a mat foundation and a pile foundation based on six soil borings. The March 1982 study examined both mat founda- tion and pile foundation based on three additional borings. The consul- tants concluded the hotel supported on pilings would be a cost effective foundation yet preclude adverse impacts associated with site preparation for a mat foundation. Both studies are included in this appendix. 7 CONCLUSIONS AND RECOMMENDATIONS The long -term performance of the hotel tower supported with a mat -pile foundation would be directly related to the consolidation and long -term compression characteristics and thickness of the lower clay layer. Since the proposed structure is large, it is our opinion that ultimately the pile and /or mat load would eventually be Raymond P. Miller, P.E. George Yamane, P.E. Senior Vice President and Manager Vice President Maurice D. Veatch, P.G. Harvey W. Parker, P.E. Vice President Vice President Seattle • Spokane • Portland • Fairbanks • St. Louis • Houston Jensen, Krause & Schoenleber W- 3919 -02 • c \ \fir --- ,....'..--.'": i ! i u f 1•i.G -1 Ndr__2 : E... :'1•0' GD' cv w (,.: ••. .-Vz •..E t _�- -,,`s NOTES 1) BASE DRAWING PROVIDED BY JENSEN KRAUSE & SCHOENLEBER ARCHITECTS & PLANNERS, PORTLAND, OR, UNTITLED, DATED JANUARY 5. 1982. 2) BORING LOCATIONS ARE APPROXIMATE, BUT WERE LOCATED WITH REFERENCE TO KEGEL & ASSOCIATES TOPOGRAPHY WORKSHEET DATED 217/82. JOB NO. 28248. A • • rr ti- "r / Z2'4. -•GI 20C;14 / • �= • r f t 4 t 1- A• Ilr N Ir B -8,' I g8I B -9• B -2 -1- �± _ B -6�r : •- "0. & •1 + — + a4- r: ,,_o• vCcae++>c a •• • *SAM 1 's&..s: sr 1 • = + t . l . . �- ^ - - II 601 ri 21'• VII - 0 1 !1 / ! . 1 1 1 1 g a-A ' ' 4-1 f '1 b 1 1 r, 1? 1 I ' ! 1 1 a iil 1: --rt „ . i� i CJ 2x b, 60 120 O B -3 ____"2.....4 /1 r'-'• B -7® : z . t I • \,:= /' T„ � B -4 - B -4 V -9- B -6 SI 1 i 1 1 � \ B -7 ® 180 SCALE IN FEET 24e 7s N Las1T0N- - -: LEGEND APPROXIMATE BORING LOCATION & DESIGNATION, BY S &W, 1973 APPROXIMATE BORING LOCATION & DESIGNATION, JANUARY 1982 • APPROXIMATE BORING LOCATION & DESIGNATION, FEBRUARY 1982 GENERALIZED SUBSURFACE PROFILE LOCATION CHRISTENSEN GROUP, INC._ TUKWILA HOTEL TUKWILA, WASHINGTON BORING LOCATION PLAN FEBRUARY 1982 W•3919•02 SHANNON & WILSON, INC. Geotechnical Consultants FIG. 1 / I'S:4, Y ▪ • / zC `` /% 1F C. r-- r t- • ! L • / e: . / • ✓'I+ii`.G1 200x( / / / r J - -- ------ - • NOTES 1) BASE DRAWING PROVIDED BY JENSEN KRAUSE & SCHOENLEBER ARCHITECTS & PLANNERS, PORTLAND, OR, UNTITLED, DATED JANUARY 5, 1982. 2) BORING LOCATIONS ARE APPROXIMATE, BUT WERE LOCATED WITH REFERENCE TO KEGEL & ASSOCIATES TOPOGRAPHY WORKSHEET DATED 2/7/82, JOB NO. 28248. B•2 • 5i_2V:G8 e.OuLT / * / B -60 a' -- — — —�.- B-3 / \ 1 ,::I -' ...ee vcrard+10 s . .. araace 1 I. S - -�� / l 1 • : w I - �� �� t = 1 « l I - 1_ s 1:T1 .� B -4 i� , � _. _. I1 dsri a 21'. tall - a - , `. -� i 1 l \\\ , I l!I /I 1 ■ 1 1 1 1 {� f !� I i '� � � I/ / e ;' i i; 1 i i h I \ 1 4- \��' ~r' ' :'III B -S�. iiil. 1 ''' U i cb I €9 i i /a a .1"' I , 1 ^ \ \i big I • I • i ua G 1I a r r a 1 N -- 1'DItiQI LecicrOt4- LEGEND B.4 C)APPROXIMATE BORING LOCATION & DESIGNATION, BY S &W, 1973 B -6 APPROXIMATE BORING LOCATION & DESIGNATION, JANUARY 1982 - B -7®LOCATION & DESIGNATION, APPROXIMATE BORING FEBRUARY 1982 ...AAGENERALIZED SUBSURFACE PROFILE LOCATION 6 60 120 180 N .---i 1 SCALE IN FEET 24 CHRISTENSEN GROUP, INC.. TUKWILA HOTEL TUKWILA, WASHINGTON BORING LOCATION PLAN FEBRUARY 1982 W- 3919 -02 SHANNON & WILSON, INC. I FIG. Geotechnical Consultants SOIL DESCR ION Surface Elevation: APPROX. 25 FEET J = y. w 0 0 GROUND tot WATER DEPT Standard Penetration Resistance (140 113, weight, 30" drop) Blows per foot 0 20 40 60 Loose, brown, silty to slightly silty SAND, with organics. 0 1 = OBSERVED 2 -24 -82 11 N -+ 0 0 0 0 0 0 0 0 2= 6' Loose to medium dense, brown, clean SAND, 3= _ 4= 5 = 21 Medium dense, black, clean SAND with a trace of organics. 6 7= • 81 9 = _. _ _._ . .. ....... ..._..__ ,. . __ ..__... . 10 T • 11 =� 12 1 13 2 - 70 61 Loose, black, silty, fine SAND. 14 = 66 Soft to medium stiff, gray, slightly clayey to clayey SILT with a trace of sand and organics. 15 2 16I . 17 = .... 84 18 = — Medium dense to very dense, shelly, gravelly, silty SAND. 89.0 19 = : -50167 — BORING COMPLETED 2 -23-82 LEGEND 1 r' O.D. split spoon sample s • Impervious seal %Water content II 3" O.D. thin -wall sample 2 Water level Piezometer tip CHRISTENSEN GROUP, INC. *Sample not recovered TUKWILA HOTEL P Sample pushed Atterberg Limits: TUKWILA, WASHINGTON I--• If-- Liquid limit \--- Natural water content LOG OF BORING B-7 limit Plastic MARCH 1982 W- 3919.02 NOTE; The stratification lines represent the approximate boundaries SHANNON & WILSON, INC.1 between soil types and the transition may be gradual. Geotechnical Consultants FIG. 2 SOIL DESCR ION Surface Elevation: APPROX. 25 FEET = J a a ,u G 2 GROUND WATER DEPTH, Standard Penetration Resistance (140 Ib. weight, 30" drop) A Blows per foot 0 20 40 60 Medium dense, brown, gravelly, silty, fine SAND with 1.5 1 = OBSERVED 2 -25 -82 11 V Qs 01 A o 0 0 0 0 0 0 0 numerous organics. r T Very loose, brown, silty, fine SAND with shell), and clean layers. 2 31 11 ... • . ......• • Medium dense to dense, brown grading to black, clean SAND with a trace of shell and wood fragments, slightly layered. 41 51 61 7 = ... • 81 9 = 68 101 11= 121 131 75.. 62.5 14 = 95/9" Very dense, gravelly, silty SAND with scatterod shells 66.1 15 =• . 50/1" : BORING COMPLETED 2.24 -82 NOTE: BORING COULD NOT BE ADVANCED FURTHER DUE TO OBSTRUCTION AT 66 FEET. . • • LEGEND • % Water content 1 2" O.D. split spoon sample c Impervious seal ii 3" O.D. thin -wall sample 2 Water level Piezometer tip *Sample not recovered CHRISTENSEN GROUP, INC. P Sample pushed TUKWILA HOTEL Atterberg Limits: TUKWILA, WASHINGTON 1-•--1r Liquid limit \\--- Natural water content LOG OF BORING B-8 Plastic limit MARCH 1982 W.3919-02 NOTE; The stratification lines represent the approximate boundaries between soil types and the transition may be graduaL SHANNON & WILSON, INC..' Geotechnical Consultants FIG. 3 SOIL DESCR ION Surface Elevation: APPROX. 24 FEET J c/) iii I- a. n. 2 Lu (3 g GROUND WATER DEPT Standard Penetration Resistance (140 lb. weight, 30" drop/ A Blows per foot 0 20 40 60 Medium dense to dense, brown to black, clean SAND with a trace of shells, organics, fine gravel and silt. _ - 0 64 71 81 76 9 1 101 85.5 89.5 111 WATER LEVEL COULD NOT BE TAKEN DURING DRILLING to co v m O, O O O O O O O 0 — ' _ _ _ .4..... • . . . ' .... • - . . • ... • - - ' . • • • Soft to stiff, gray SILT with fine sand and occasional clayey silt layers. Stiff, gray, clayey SILT, slightly layered, numerous shells at tne base. Dense, gray, shelly, gravelly, silty SAND BOR INC COMPLETED 2-25-82 LEGEND c Impervious seal 2 Water level Piezometer tip P Sample pushed approximate boundaries may be gradual • % Water content 1 2" 0.0. split spoon sample n 3" O.D. thin-wall sample *Sample not recovered A tterberg Limits: 1--0---1 ...— Liquid limit \--- Natural water content limit CHRISTENSEN GROUP, INC. TUKWILA HOTEL TUKINILA, WASHINGTON LOG OF BORING B-9 MARCH 1982 W-3919-02 Plastic NOTE; The stratification lines represent the between soil types and the transition SHANNON & WILSON, INC.- G eotech nice: Consultants FIG. 4 EAST 30 0 -90 -120 • • L.22/25 7 -11 7 B -6 - 36 -62.5- - 66.1 7 EXISTING GROUND SURFACE HOTEL TOWER • • APPROX. MAT ELEVATION, 15 FT. . 7-- - 35 7 - 111•••■ 7 1/8 Q -11.5 —7— — — 64 7 -85.5 —89.5 7 Soft to stiff, layered, Dense, gravelly, silty SAND with 7 Loose, silty SAND with organics Loose to medium dense SAND 32 -- —_--7 Dense SAND, locally medium dense - 66 7 7 clayey SILT and SILT with a trace of sand 7 - 101 shells to SAND and GRAVEL —123.4 O 30 �---a �---I 1 -4 SCALE IN FEET LEGEND NOTES APPROXIMATE BORING LOCATION AND DESIGNATION 2.2/24 WATER LEVEL AND DATE OBSERVED 89 BOTTOM OF BORING AND DEPTH IN FEET 7 7 7 1. SEE FIGURE 1 FOR BORING, BUILDING AND SECTION LOCATION. 2. SUBSURFACE PROFILE IS GENERALIZED FROM MATERIALS ENCOUNTERED IN THE BORINGS. VARIATIONS BETWEEN THIS SUBSURFACE PROFILE AND ACTUAL CONDITIONS MAY EXIST. 6 S X24. ►35 - -7 66 —7 -84 -7 89 WEST A' 30 0 -90 -120 CHRISTENSEN GROUP, INC. TUKWILA HOTEL TUKWILA, WASHINGTON GENERALIZED SUBSURFACE PROFILE FEBRUARY 1982 W- 3919 -02 SHANNON & WILSON, INC. Geotechnical Consultants FIG. 5 SHANNON & WILSON, INC. George Y : , an Vice Pre dent TMG/lcl •L• Enclosure: Report (Original + 7 copies) Raymond P. Miller, P.E. George Yamane. P.E. Maurice D. Veatch. P.G. Harvey W. Parker. P.E. Senior Vice President and Manager Vice President Vice President Vice President Seattle • Spokane • Portland Fairbank3 • St. Louis • Houston • TABLE OF CONTENTS • List of Figures Figure No. 1 Vicinity Map 2 Boring Location Plan 3 Log of Boring B -6 4A thru Consolidation Test, Boring B -6, Sample S -21 4E 5A thru Consolidation Test, Boring B -6, Sample S -21 5E 6A thru Consolidation Test, Boring B -6, Sample S -22 6E 7A thru Unconfined Compression Test, Boring B -6, Sample S -21 7B 8 Settlement Plate Detail 9 Subdrainage do Backfiuing TABLE 1 TABLE 2 List of Tables Summary of Laboratory Test Data Pile and Driving Equipment Data W- 3919 -01 Attachment A 1973 Shannon be Wilson, Inc. Boring Logs and Laboratory Test Results ii GEOTECHNICAL REPORT TUKWILA HOTEL TUKWILA, WASHINGTON 1 III. SUBSURFACE EXPLORATIONS Five borings designated B -1 through B -5 were drilled at this site in 1973. Their locations are included in Figure 2. These boring logs, along with pertinent laboratory test results, are included in Attachment A. For this current study one deep rotary boring, designated B -6, was accomplished on December 17 to 22 by Kring Drilling. Boring B -6 was located by cloth taping from prominent site features and the elevation was interpolated from the ground surface elevation contours shown in Figure 2. Samples were obtained from these borings at selected depth intervals with either a 2 -inch O.D. Standard split -spoon sampler or a standard 3 -inch O.D. thin -walled push tube sampler. Standard Penetration Resistance tests were performed in conjunction with sampling. These tests involve driving the standard split -spoon sampler a total of 18 inches, with a 140-pound hammer falling a distance of 30 inches. Blow counts are recorded for each 6 -inch interval, and the total of the last 12 inches of penetration is designated as the Standard Penetration Resistance or N- value. N -value is an empirical parameter which generalizes the consistency of cohesive soils and the relative density of granular soils. All drilling and sampling operations were observed and recorded by an experienced geologist from our firm who also collected and field - classified samples and completed detailed field boring logs. All samples were sealed in jars to preserve the natural moisture and were returned to our laboratory. Two observation wells were installed in boring B -6. One well was set at the bottom of the boring and the other at a depth of about 25 feet. Both wells consisted of a 2 -foot length of 2 -inch diameter slotted plastic well screen connected to a 3/4-inch plastic riser pipe. The drill hole was backfilled with pea gravel and separated with an impervious bentonite seal at a depth of about 70 feet. A seal was also placed at the ground surface. Log of boring B -6 is presented in Figure 3. Shown graphically on the right side of these logs are sample number, type of sampler, depth, and plot of N- values. On the left side of the boring logs is our interpretation of the subsurface conditions. 2 • • It is recommended that the preload settlements be monitored with about 12 ' settlement plates to determine at what time the preload can be removed. A detail of the settlement plate is presented in Figure 8. We recommend that we select the plate locations on the contract drawing when it becomes available. The 6 feet of site fill required to support the banquet - dining area should be structural fill. The preload fill should not have more than 20 percent of nonplastic fines passing the No. 200 sieve and should be compacted by routing haul equipment and dozers. 3. Densification. It is recommended that the loose sands beneath the structures be densified to a depth of about 35 feet (elev. -11 ft.) and to a minimum SPT N -value of 30 blows per foot. This corresponds to a relative density of 75 to 80 percent. Soils should be densified laterally beyond the edge of the structures a distance of 25 feet. Densification should be evaluated with rotary borings to determine N- values and with Dutch cone probes to delineate any silt layers. A densification program should be designed and accomplished by an experienced contractor. The program should be reviewed by our firm. Our experience indicates that vibroflotation would be a suitable method for densifying the sands at this site. If dynamic consolidation, which consists of dropping a weight in a systematic pattern, is proposed, a test section with borings, etc. should be done prior to any production densification. The contractor should also submit, in detail, his design and procedures for review by our firm. We recommend that utility connections between structures be flexible. 4. Subgrade Modulus. We have made an analysis of a uniformly loaded 62 by 297 -foot mat. For this case a five -foot thick mat is still relatively flexible and the modulus of subgrade reaction would not vary significantly across the mat. However, the vertical displacement of the mat is a function of the stiffness of the subgrade soils. For the densified case we estimate central elastic displacement to be about 1 inch with differential displacement on the order of 1/2 -inch and recommend a modulus of subgrade reaction of 15 pci. Without densification, we estimate central elastic displacement on the order of 3 to 4 inches with differential displacement on the order of 1 to 2 inches or more, and a subgrade modulus of 3 pci. Elastic displacement is the movement of the mat due to compression of the sand and does not include the consolidation settlement due to the consolidation of the underlying clayey silts. These elastic displacements are expected to occur essentially as the load is applied. 5 • 1 a • 0 N, 44 xarEEZ :>.E : E.. r1.0' :b r ash r•G.: d w'M • _ft • • NOTE BASE DRAWING PROVIDED BY JENSEN KRAUSE & SCHOENLEBER ARCHITECTS & PLANNERS, PORTLAND, OR, UNTITLED, DATED JANUARY 5, 1982. —` 3e NalJET s / \ C'+Y,14 ZOO +( / \ / / 2.; Lout 23.7 tz-3-1 n '1 4 b: tar I I ;� / 1 e i! I .. / 1 1 i { I l f I1 II j 1iii1i II j 'WI 0 ai 4r II: 0 60 120 a i 1—. SCALE IN FEET 180 / *4e Ps vr —_ez41.141-1-ce.X11251 fi- B-4® B -6 19 LEGEND APPRQXIMATE BORING LOCATION & DESIGNATION, BY S &W, 1973 APPROXIMATE BORING LOCATION & DESIGNATION, THIS STUDY CHRISTENSEN GROUP, INC. TUKWILA HOTEL TUKWILA, WASHINGTON BORING LOCATION PLAN JANUARY 1982 N W- 3919 -01 SHANNON & WILSON, INC. 1 FIG. 2 Geotechnical Consultants SOIL DESCRI.N Surface Elevation: Approx. 24 ft. 1- 6 W . 0 SAMPLES 1 1- o. W 0 0 Standard Penetration Resistance (140 Ib. weight, 30" drop) A Blows per foot 20 40 60 ^ \ Very loose, slightly silty SAND with organics. ' \ Soft, brown, sandy SILT with organics. Loose, brown to gray, silty, fine SAND, slightly layered, with a trace of organics. r Loose to medium dense, black, clean, fine to medium SAND, with a trace of wood fragments. Similar to above except medium dense to very dense,, Medium dense, gray, layered, clean SAND and SILT. Medium stiff to stiff, gray SILT with sand. Medium stiff to stiff, locally soft, gray, clayey SILT, locally silty CLAY, with a trace of fine sand. Medium dense to dense, gray, gravelly, sandy SILT, with GRAVEL layers, scattered sheik. 1 2.5 11.5 1 L 21 41 5.1 6= 71 81 9= 10 31 61 66 76 101 1 19 161 171 18 JIG 19 UP 20 UP 2111P 22 11P 2311P 24IIP 2511P 261 27I. 281 (CONTINUED ON RIGHT) NOTE: The stratification lines represent the approximate boundaries between soil types and the transition may be gradual. 2 1 0 10 s 20 ao W w 30 W h 0 40 50 60 70 80 90 100 • • • • • • 76 • .. • 1 .1• • ...j —.. 1 •.• . •• 1 1 110 120 0 20 40 • Water content 60 SOIL DESCR IPTI, s 0. O SAMPLES z Occ OF OQ 0 Standard Penetration Resistance (140 Ib. weight, 30" drop) A Blows per foot 20 40 60 Very dense, gray, silty, sandy GRAVEL BOTTOM OF BORING COMPLETED 12 -22-81 — 123.429= 120 130 50/5 ". - +41 LEGEND I 2" O.D. split spoon sample 11 3" O.D. Shin wall sample *Sample not recovered Atterberg Limits: E-'--•-- 1■•— Liquid limit Natural water content Plastic limit P G Impervious seal Water level Piezomater tip Sample pushed GUS sample 20 40 60 • % Water Content CHRISTENSEN GROUP, INC.. TUKWILA HOTEL TUKWILA, WASHINGTON LOG OF BORING B-6 JANUARY 1982 W- 3919 -01 SHANNON & WILSON, INC. I FIG. 3 Geotechnical Consultants W- 3919 -01 D. Structural Fill, Placement and Compaction Structural fill material should consist of a reasonably well-graded (from fine to ' coarse) sand or sand and gravel, free of organics and debris, with a maximum particle size of about 3 inches and having not more than 12 percent fines by weight passing a No. 200 mesh sieve, based upon wet sieving the minus 3/4 -inch fraction. If earthwork ' takes place in wet weather, no matter what time of the year or within wet • 7 • • W- 3919 -01 If 3 or more feet of fill is placed to raise site grades around and /or beneath the structures, the piles will be subject to downdrag loads. Downdrag occurs when loose or soft soils consolidate and soils above settle, gripping the piles and applying downward loads to the piles. Another alternate would be to design all the structures with basements or hollow crawl spaces such that the site soils are loaded as little as possible and not settle. The following table presents the design capacities for 14 -inch concrete and steel pipe piles, with and without downdrag. Pile Type 11" Oct. Prestressed Concrete 14" Pipe Pile, 3/8" wall (closed -end) * Below existing ground surface Estimated Downdrag Pile Length* Load (feet) 1UFir 120 to 130 210 120 to 130 180 Design Capacity with without Downdrag Downdrag (kips) (kips) 90 200 80 200 If pile foundations are selected we recommend about 10 test piles be driven across the site to evaluate pile lengths and driveability, pile- driving hammer, and capacity. Driving test piles should be about 130 feet long. If a pile foundation is selected, we recommend that we be retained to review the hammer size required. The data listed in Table 2 will be required in the final hammer selection. We recommend that the WEAP program be used to select the hammer and to determine pile driving criteria. We recommend that the upper loose silts and sands be densified to provide lateral pile resistance from wind or seismic loading, and that the densification be accomplished after pile installation. F. Lateral Earth Pressures The lateral earth pressure against a wall is dependent on the . method of backfill placement and degree of compaction, the backfill slope, the type of backfill material, the drainage provisions and, above all, whether or not the wall can yield laterally after or during placement of backfill. When a wall is restrained against lateral movements or tilting, the soil pressure exerted on the wall is the at -rest soil pressure. Wall restraint may occur if a rigid structural network is constructed prior to backfilling or 8 • 9 � • • H. Drainage W- 3919 -01 Our recommendations for drainage behind permanent walls are presented in Figure 9. These include compaction criteria for backfill, types of underdrain pipe, and gradation requirements of drainage material. I. Excavations, Dewatering, and Safety For safe working conditions and prevention of ground loss, excavation slopes should be the responsibility of the contractor, since he would be at the job site to observe the work. Furthermore, all current and applicable safety regulations regarding excavation slopes and shoring should be followed. For planning purposes only, temporary excavation slopes should not be steeper than 1V:1.5H. Where loose soils, seepage zones or clean sand are encountered, flatter slopes may be required. Fill and natural soils at this site are erodable when exposed to heavy rains. Measures to prevent this erosion, such as covering the slope with visqueen, etc., should be the responsibility of the contractor. In addition, the contractor should be made responsible for the adequate control of any ground or surface water wherever encountered. In this regard, sloping, slope protection, ditching, sumps, dewatering and other measures should be employed as necessary to permit proper completion of the work. J. Roads and Parking Areas All soft, loose, organic soils and other objectionable debris should be removed prior to placement of road fill. Road fills should then be placed in 12 -inch lifts and compacted to at least 92 percent of the Modified Proctor maximum dry density. Some select preload materials may be used for road fill. All road excavation surfaces should be proofrolled to detect soft or loose sols. The excavated surface should be leveled to promote uniform compaction. 10 • • 12 • • W- 3919 -01 excavations, we should be advised at once so that we can review these conditions and reconsider our recommendations where necessary. If there is a substantial lapse of time between the submission of this report and the start of work at the site, or if conditions have changed due to natural causes or construction operations at or adjacent to the site, it is recommended that this report be reviewed to determine the applicability of the conclusions and recommendations considering the changed condi- tions and time lapse. This report was prepared for the exclusive use of the Owner, Architect, and Engineer in the design of the subject facility. It should be made available to prospective contractors and /or the contractor for information on factual data only, and not as a warranty of subsurface conditions, such as those interpreted from the boring logs, and the discussion of subsurface conditions included in this report. We recommend that we be retained to review the plans and specifications. We also recommend that we be retained to observe construction, particularly excavation and grading, the proofrolling and compaction of subgrades, over - excavation requirements, structural filling, footing excavations, densification, pile driving, preloading, and such other field observations as may be necessary. Unanticipated soil conditions are commonly encountered and cannot be fully deter- mined by merely taking soil samples from borings. Such unexpected conditions frequently require that additional expenditures be made to attain a properly constructed project. Therefore, some contingency fund is recommended to accommodate such potential extra costs. SHANNON & WILSON, INC. omas M. Gurt:wski, P.E. Principal Engineer George Ya Vice Presid 13 PROJECT SITE NOTE DRAWING ADAPTED FROM THOMAS BROS. MAP. 0 1/2 SCALE IN MILES CHRISTENSEN GROUP, INC. TUKWILA HOTEL TUKWILA, WASHINGTON VICINITY MAP JANUARY 1982 W•3919.01 SHANNON & WILSON, INC. SEOTECNNICAL CONSULTANTS FIG. 1 • • • - c 0.01 0. 1 U) Z cp • cr) o CV 0 0 v o Ln- STRESS. KG. /CM? l.0 10 100 CONSOLIDATION TEST BORING B -6 SAMPLE S-19 DEPTH 74.4' JON 1982 t1- 3919 -01 StIANNON AND 11ILSON.INC. GEOTF.CNNICAL CONSULTANTS 8 H A N N L N & CnNSOLID; TInN TEST NO. C -101 Tested h_, AB ralc : ' NEB Check + by 'M Date 12/29/8i Efate 01/05/82 Date .ii'. L u BEFORE TEST =feisht+ irr. .789 Diarneter. ir.. .-2..504 Wet Unit Wt., Gcf 112.5 Dr.,. Unit Wt.,' -•cf 81.0 Water content, % 38.9 Void ratio 1.0820 AFTEF: TEST 1,9.5 32.1 L0AE+ STRESS EDIAL (Kr;) (KG /CM2) READING 0.01i1M) 0.2 0.066 3.1 0.5 0.165 12.8 1.0 0.330 25.0 ,..0 0.660 38.4 5.0 1.650 62.6 10.0 3.301 111.3 20.0 6.601 205.0 10,0 3.301 19;4.0 20.0 6.601 210.7 40.0 13.203 300.0 10.0 3.301- 184,9 2.0 0.660 263.2 W I L S ON, INC Job No. W-3919-01 Borine B -c Sample 8 -19 EaePth 74.4' Unified c1.s =_.if. . Fines, % L ieuid limit' Plastic limit, .% P1asticitw index, 0relanic content, % Specific Gravity ML '27. 11. 4..7 MACH. E' FL . SETTLEMENT VOID CORRECTION (0.01M M) 0.4 2 2 5.0 P,5 13.9 13.4 23.7 18?.4 23,7 29. 5,0, 0.4 ...� w ... ... lino .� ; . •.J :. C 0.13 0.53 1.04 1.49 2.43 a +64 a +05 t +9.4 9.33 13.49. 13.97 17.1' RATIO 1,0792 1.0710 1.0603 1.050? 1,0314 0.9855 0.8936 0.8954 0.8877 0.8011 . 0.7912 0,8090 FIG. 48 • TIME IN MINUTES 0.1 1.0 10 100 1000 iIflhIIilltiiiiiumimii- IiIlIIII1iiiii 0 ", ' 1111 1111 11111 0.066 KG /CM2) 1.650 (KG /CM2) 3.301 (KG /CM2) CONSOLIDATION TEST 7 BORING 6 -6 SAMPLE S -19 DEPTH 74. L' SHANNON b WILSON, INC. IME— SETTLEMENT CURVES CHRISTENSEN GROUP, INC. TUKWILA HOTEL 7UKWJLR, WASHINGTON JAN. 1982 W- 3919 -01 GEOTECHNICAL CONSULTANTS FIG.4C • TIME IN MINUTES 1.0 10 100 1000 _ _ iii fI'`.,'_ 3.301 (KG /CM2) .0iiiWIN' Elliiii r7{171-(7 G/CM2) .. l,� {IIIII 6.601 (KG /CM2) L ;11 CONSOLIDATION TEST TIME - SETTLEMENT CURVES CHRISTENSEN GROUP, INC. TUKWILA HOTEL TUKWILA, WASHINGTON JAN. 1982 W- 3919 -01 SHANNON b WILSON, INC. GEOTECHNICAL CONSULTANTS FIG. 40 • TIME IN MINU7E5 1.0 10 _00 1000 C N 0.660 (KG /CM2) 3.301 (KG /CM2) m co co m 13.203 (KG /CM2) II CONSOLIDATION 7E37 TIME— SE7TLEMEN7 CURVES BORING 0 -6 SAMPLE S -19 DEPTH 'NA/ CHRISTENSEN GROUP, INC. 7UKWILR HOTEL 7UKWILR, WRSHING7ON JAN. 1982 W- 3919 -01 SHRNNON b WILSON, INC. GEO7ECHNICRL CONSULTANTS FIG. 4E 4-11 c‘73 liJ CT) OL 0 E3 c=1, 0. (1) STRE- El. Al 100 CD . . . ...- LI) 7_2 E3 ....1 \ .---, Ln--------- 7:2 ... \ .--, 7Q CONSOL I OAT I ON TEST BORING 13-6 SAMPLE S-21, DEPTH AIN 3R22 w-xrs-v! SNANNCN MVO WIL.SGN.!NG. nEolEcnrcrsi. CONIAILUNT:, • -.I- I I I . ID .4 .4 .-I rl 14.1 0- V- Iil g- 1 C4 0 • 1--.. 14 1-- If) '::' 'I' f) .-1 -.0 f4) Pi C4 ,-; ..I (1 I ,4 -I iri 1-1 • I 1.,.. 1. '.I. 14 ,--1 CJ ...7.). if • s 1-4 ...I. -.-.1 v-f , .4 , 4 "-I -.--•• : -1 .T.• 1 •r-4 e'rt (::., C) 1 0' . • i , t.) 1 VI ...ii CI ..:::). .....,! z O 1. z L, O W GC J CC C 0. .1 1.0 TIME IN MINUTES _0 100 1000 p r _ - - -' _ f' 0.165 -'0.066 (KG /CM2) (KG /CM2)' G; 0.330 i (KG /CM2) N O — O n — — MMIMIIIIM 0 659 (KG /CM2) -; 1.648 (KG /CM2) 1 t 18 001 0? 3.295 (KG /CM2) O O CONSOLIDATION TEST TIME — SETTLEMENT CURVES BORING B -6 SAMPLE 3 -21, DEPTH 59-.8 CHRISTENSEN CR TUKWILA HOTEL TUKWILA, WASHI JAN. 1982 OUP, INC. NGTON W- 3919 -01 SHANNON b WILSON, INC. GEO:TECHNI CAL CONSULTANTS FIG. 5C z C z z 0 w J Q C TIME IN MINUTES 1.0 _0 _00 1000 v 0 N. 11 C 0 LO 5) 0 O \ - C C N CD N N CD 3.295 (KG /CP /CM; .......: , (KG -_.- 6.591 6.591 (KG /CM2) N 0 t0 2) CONSOLIDATION TEST TIME — SETTLEMENT CURVES BORING B -6 SAMPLE S -21 DEPTH CHR I S7 ENS EN GROUP, INC. 7UKWILA HOTEL 7UKWILA, WASHINGTON JAN. 1932 W- 3919 -01 SHANNON b WILSON, INC. GEO7ECHNICAL CONSULTANTS FIG.5D z O z 0. 1 TIME IN MINUTES 1.0 10 _00 1000 N 0 , I T - N 0 (D r N 0 Co N O o �f�� �, �.�,. - . . 0.659 (KG /Mi) m O . Ngil • `Y ��O n (Ku" CM2) .. 3.295 13.182 (KG /CM2) Cr) ° - I i Cr) 0 m m CONSOLIDATION TEST T IME- SETTLEMENT CURVES BORING B -6 SAMPLE S -21 DEPTH +8 CHRISTENSEN GR TUKWILA HOTEL TUKWILA, WASHI JAN. 1932 OUP, INC. NGiON W-3919-01 SHANNON g WILSON, INC. GEOTECHNICAL CONSULTANTS FIG. 5E • P cn c 0.01 SFRESS, KG../rm 0.1 A.0 10 100 CONSOLIDATION TEST BORING -0-6 SAMPLE 5-22 DEPTH 89.31. JRN )FE2 W-39!3-01 LHANNON FIND WILfiGNANC. GEGTESHNICHL CarOLUNTL • CO -3 1 0- t.,3 CA LI 131 t,2 it. a, to 1- CI (.11 '0 0) -0 -0 '0 '0 4b. Q1 441 0- 0- 4 -I .0 01 t..) rjl r..1 al -.0 0 cm a, co : 1'3 1.3 4..) 4-3 4-- 1.-4. : 4 4.31 CO 0 ' 0 ' .1' 1%) r. 1-J1 i.0 1-4 GI 0, CA u C•1 1- 0 0 0 0 F (1"4 Z:. 0 Cts. 1 E 1:3 :1: 4-4 I 0 HI --1 41.3 1-'. 113 :-.4. 01 III 0 1 /-.1: ,r4- it .--4.- RI 1-..• 0 r--. 01 SS I 0_ III :'? If4 0 0 •7+ CO 71:: 0 71 k--: C: ID a :•=- -- ID n ) CD 1> .--.I 71 3 tor ..+ .4 0. ! 4jj 0 M. 1.4. .11) .• FA 1 k-1- 0 a:4" c4- '1 fl ty Fy 1-1 I 1-1- 7..1 • • i -• - LC Ir. lc Tr:, 1 0 •:4- f::..: E 2:1 --1 1 ID .7-1- (-1- t-, • ili 2_ ;D: 21 • • 3 ix t:::i lit 13 . . --.. * Ir 2_ 1 I G1 --I 11 1.1 --4 N 7-1 ii4! 0 0 I-.:1 121 t-I III 01 (1 ITI A, -4. • 0.1 iII w 3; to 1-_, )7+ (+ ).-÷ --4 T. to CO . 4-: 4,.) III 411 ft t:-‘ t..,4 1)1 1--: • • 'XI 2: 1., • 0 0 4.-3. (J1 NJ --I fil I.,'" 0 1.-,. 0 - • • 0 0) PI -11 Iv' 1-4 r..) • ,r (5I 0 or 0, al tr) )3 Ili -17) It 0 3.3 n rn 1 1•4 • 1:4 4-4 4' 0) 1)) c 1:.-.1 1> 1.-, 1 1%) 1.---= r....1 ,-,- F.4 r- (..4 o 4,0 ..)..., a z 1 4-.) a '..,1 I 3: C3 'I...4. 111TI:---1 .._. 1 01 0- ID I 1 ILO 111 ----- 0 3: 1- $_ 1-.) 1-- V) I- 1-.4. .::::. 0 :V 0 -0- 'N..; 11-, 0- I-- 0- U.) •-.1 .t, 13 c.:: • 0 7.! "1" 0- .0 Cc! -..1 -44 • ...1 • 0 --...1 ,-.4 -0 '-..1 a. I-,. m • :I ri u L) T:, -11 I- -0 CZ a --t ti 11 -...! t.,4 4--• 44. •4. -1 ......' 3-4 :PI ID D.I. rq w !'a. -'I 4-.- 0'l 0 D.F Ho in C ID -4, Z f- I-4- 3 K4- F74. ii- In i4• • -4. 14-. I-. l-- 0 .4 0 la. 0 1) 11 0 I-• I --1 .0 0-.1 0 ,--1- f-4 14- I) 1.1 al -1 r5 rn c.) Cl tr. I-4. E i--.• .:-1- 11 F-F- ..---1 --3 -3 F.? k'• 01 .7 t., -1 Z . . 4 . . 4 ..... 4 RI C+ I . - : .:-1- m ...: 4-- 4:4: RI -3 4:4 ... 414 ---4 ITI 1-4- -1 0. - ), a -.i-,?. -4., rn it: - ;; ;-, • (0 z ..,. -0 to tr E -I is: • I I 1 444 1...4 0- 01 . • 1-.3 -'0 - 7, 4.7.4 .1-3' 0 0 ,-.....--, 1.4. 1....4 j...4. 1..z. i-a !...., I:-, AI ...: f3 .--= 10 (4 ..0 • I-, G. -..! I r.t..., .t. (.0 F-4 19 1-9 13 ',../ 1) -0 f.D 0 .-I 4-.4 ----.1 • . . () 0 0 0- CO ON ct. 0) (q F-, -,.) 4-.) 0- IA 1^71 I--,- 4-11 1.3 10 CO VI (..! 0. -.0 0, -.I I, 0., 0 oo tr ITI (1I 0 0 111 10 0 j z z CE w O H TIME IN MINUTES 0, '. 1.0 10 100 _000 r ' 0.066 (KG /CM2) i ;0.165 (KG /CM2) I. . 0.330 (KG /CM2) ` .. 0 659 (KG /CM2) 1 1.648 (KG/ M2) C r • / � W C 9 w _ . C o 0 '.. 3.295 (KG /CM2) 0 ;v .. 0 . 0 0 CONSOLIORTION TEST T IME- SETTLEMENT CURVES BORING B -6 SRMPLE S -22 DEPTH 89.3' CHRISTENSEN GR TUKWILA HOTEL TUKWILA, WRSHI JRN. 1982 OUP, INC. NCTON W- 3919 -01 SHRNNON b WILSON, INC. GEOTECHNICPL CONSULTRNTS FIG. 6C Z 1 O CC uJ OC —J CL 00.1 1.0 TIME IN MINUTES 10 100 1000 N n CO 'kk o 3.295 (KG /CM2 . In'n , 6 5 1 (KG / CM N 0 N 6.591 (KG /CM2) i N 0 . N O in 2) CONSOLIDATION TEST T BORING 5 -6 SAMPLE 3-22 DEPTH 89.3' 1 1E—SETTLEMENT CURVES CHRIS T ENSEN GROUP, INC. TUKWILA HOTEL TUKWILA, WASHINGTON JAN. 1952 W- 3919 -01 SHANNON b WILSON, INC. GEOTECHNICRL CONSULTANTS FIG. 6D - 0 0 TIME IN MINUTES 1.0 10 _00 1000 O N z O N '0 " O Ln 0 Q °G QN 0 O O 0 CO 0 m 0.659 (KG/ M2) 3.295 (KG /CM2) 13.182 (KG /C 2)- CONSOLIDATION TEST TIME — SETTLEMENT CURVES BORING B -6 .SAMPLE 3 -22 DEPTH 89.3' CHRISTENSEN GROUP, INC. TUKWILA HOTEL TUKWILA, WASHINGTON JAN. .1982 W- 3919 -01 SHANNON b WILSON, INC. GEOTECHNICAL CONSULTANTS FIG. 6E UNCiNF CCvpRESS I ON 7E S ► NLO w + + + + + + + + t 1 1 1 5.: 10.0 15.0 20. AXIAL STRAIN, BORING : B -6 SAMPLE .S -21 DEPTH 83.8' 25.0 FAILURE SKETCH SHANNON b WILSON, INC. CHRISTENSEN GROUP, INC. GEOTECHNI CPL CONSULTANTS TUKWILA HOTEL SEAT TLE,WRSHINGTON TUKWILA, WASHINGTON JAN. FIG. 7A SLDId 1 /,442:g;1'0 47.4S1t1 UTE,14S +si ptoaquoT, ssa..1.4,s 0497 S461 0'41. 0.7LT O'S 00 0'0 (itin1 •860'T‘ 100 •0 1.sai 4.Ja'.4.uo3 ,Laq.sm A3k,.:;10 GI NYM "iALLS WriITN 174-s sitwes 9-a suT.Joi 0'00L 0400; 0.00'7 0'00c. 04007- 001 0';CT 0400T 0'1;Z 040c 04;(7 O'OT 04; +av3.6 •-430 1k-rIX7.) .".,TP/UT 8iNt1:150,-:0 pequrr...t.s:pLin uaktiTt)s4s. FINISHED SURCHARGE FILL SURFACE -\ PIPE COUPLINGS 2' x 2' x X" STEEL PLATE STANDARD PIPE PLUG WITH 2 VENT HOLES INSTALL PLATE AND 'PIPE RISER IfTO THIS POINT BEFORE PLACING FILL EXCAVATION OPTIONAL 0 SEE DETAIL BELOW 2'x2' x%"PLATE et r' STANDARD STEEL PIPE �EXISTING GROUNDSURFACE • 41..0.4, 1 ��- CONCRETE SAND GRAVEL POCKET 2"' STANDARD PIPE PIPE COUPLING WELD ALL AROUND NOTE: SETTLEMENT MARKERS ADJACENT TO EXISTING BUILDINGS TO CONSIST OF STEEL PIPE OR ROD DRIVEN 4 FEET OR MORE INTO GROUND TO PROVIDE FIRM SETTLEMENT MONUMENT. 4 -X" HOLES CHRISTENSEN GROUP, INC. TUKWILA HOTEL TUKWILA, WASHINGTON SETTLEMENT PLATE DETAIL JANUARY 1982 W- 3919 -01 SHANNON & WILSON, INC. . CEOTECNNICAL CONSULTANTS FIG. 8 PAVEMENT OR 18" IMPERVIOUS SOIL ON.SITE SOIL (SEE NOTE 2) SLOPED TO DRAIN AWAY FROM STRUCTURE EXCAVATION SLOPE CONTRACTOR'S RESPONSIBILITY 12" MIN. COVER OF DRAINAGE SAND & GRAVEL (6" MIN. ON SIDES OF PIPE) SUBDRAIN PIPE 18 MIN. • s • • • • EXTERIOR WALL DAMP PROOFING DRAINAGE SAND & GRAVEL OR WASHED PEA GRAVEL WEEP HOLES (SEE NOTE 1) • . • •. .e. •' e.e 4" WASHED PEA GRAVEL MATERIALS DRAINAGE SAND & GRAVEL WITH THE FOLLOWING SPECIFICATIONS: SIEVE SIZE 1-1/2". 3/4" 1/4" NO. 8 NO. 30 NO. 50 NO. 200 (by wet sieving) PERCENT PASSING BY WEIGHT 100 90 to 100 70 to 90 60 to 85 20 to 65 3 to 20 0 to 2 (non - plastic) SUBDRAIN PIPE 4" MINIMUM DIAMETER PERFORATED OR SLOTTED, CONCRETE, METAL, ASBESTOS - CEMENT OR PLASTIC PIPE ;TIGHT JOINTS; SLOPED TO DRAIN (4 "1100' MIN. SLOPE): PROVIDE CLEAN -OUTS. PERFORATED PIPE HOLES (3/16 "TO 1/4" DIA.) TO BE IN LOWER HALF OF THE PIPE WITH LOWER QUARTER SEGMENT UNPERFORATED FOR WATER FLOW. SLOTTED PIPE TO HAVE 1/8" MAXIMUM WIDTH SLOTS. NOT TO SCALE VAPOR BARRIER • 18"' MIN. •• 6" MIN. NOTES 1. DRAINAGE GRAVEL BENEATH FLOOR SLAB SHOULD BE HYDRAULICALLY CONNECTED TO SUBDRAIN PIPE. USE OF 2" DIA. WEEP HOLES AS SHOWN IS ONE APPLICABLE METHOD. 2. IF WET CONDITIONS RENDER ON-SITE SOIL UNSUITABLE FOR COMPACTION, BACKFILL THE ZONE SHOWN ABOVE WITH FREE• DRAINING GRANULAR SOIL WITH NOT MORE THAN 5% (BY WEIGHT BASED ON MINUS 3/4" PORTION) PASSING NO 200 SIEVE (BY WET SIEVING) WITH NO PLASTIC FINES. 3. BACKFILL WITHIN 18" OF WALL SHOULD BE COMPACTED WITH HAND -OPERATED EQUIPMENT. HEAVY EQUIPMENT SHOULD NOT BE USED FOR BACKFILL, AS SUCH EQUIPMENT OPERATED NEAR THE WALL COULD INCREASE LATERAL EARTH PRESSURES AND POSSIBLY DAMAGE THE WALL. 4. ALL BACKFILL SHOULD BE PLACED IN LAYERS NOT EXCEEDING 6" LOOSE THICKNESS AND DENSELY COMPACTED. BENEATH PAVED OR SIDEWALK AREAS. COMPACT TO AT LEAST 95% MODIFIED PROCTOR MAXIMUM DENSITY (ASTM: D1557, METHOD C). OTHERWISE COMPACT TO 90% MINIMUM. CHRISTENSEN GROUP, INC. TUKWILA HOTEL TUKWILA, WASHINGTON SUBDRAINAGE & BACKFILLING JANUARY 1982 W.3919 •01 SHANNON & WILSON, INC. FIG. 9 G eotech n ical Consultants TABLE 1 SUMMARY OF LABORATORY TEST DATA le- 3919 -0i Whit Dunbar ton or tu01a Duelist Ia01h, fast S11101sr or Iloas /I' Shur Strength TSF Dry DensitS Per Istsr Contsnt,S 1tt+rbar; halts It Mr Tuts Ssapla Cheslllutlea LL IL 11 8 -6 S -1 0.0 -1.5 1,2,1 14.2 31.6 To; 1.0': very loose, dark brown. slightly silty, fine to medium SAND; numerous roots and organics', Bottom 0.3': soft, brown, fine sandy SILT; some roots and organics. S -2 3.0 -4.5 1,2,4 31.5 Medium stiff, brown, fine sandy, SILT; some roots and organics. S-3 5.0-7.0 1,2,4 27.0 Loose, grey - brown, silty, fine SAND; trace of organics. 5 -4 8.0 -9.5 3,6.7 23.6 (tedium dense, grey - brown, silty, fine SANG; trace of organics. S -5 10.5-12.0 1,2,2 30.3 Top 1.0': loose, grey -brain, silty, fine SA40; trace of organics. 29.5 Bottom 0.3': loose, dark grey, fine to mediur SAND. 5 -6 13.0 -14.5 2,3,4 29.2 Loose, dark grey, fine to medium SAND. S -7 15.5-17.0 6,11,17 21.6 Medium dense. dark grey, fine to medium SANG. 5 -8 18.0 -19.5 10,12,15 27.0 Medium dense, dark grey, fine to medium SAND. S -9 23.0 -24.5 3,5,5 32.2 Medium dense, dark grey. fine to medium SAND. S -10 26.0-29.5 8,9,9 33.0 Medium dense, dark grey, fine SAUD; some meciur, sand; one large wood fragment. S -I1 33.0 -34.5 15,20,21 27.0 - Dense, dark grey, fine to medium SAND. 5 -12 39.0 -39.5 13.23,23 29.9 Dense, Jark grey, fine to medium SAND. S -13 43.0 -44.5 12,13.15 30.3 Medium dense, dark grey. fine SANG; some medi- um sand; one ;" laver of fine sandy silt. 5 -14 48.5-49.5 18,30,30 _ 26.9 Very dense. dark grey, fine SAND; trace of medium sand. S -15 53.5-54.5 25,28,32 29.8 Very dense, dark grey, fine SAND; trace of medium sand. S -16 58.0 -59.5 23.35,41 25.2 Very dense, dark grey, fine SAND; trace of medium sand. S -17 63.0 -64.5 5.9.11 33.1 Very stiff, dark grey, fine sandy SILT to silty fine SAND; oxidizes rapidly. S -18 60.0 -69.2 GUS 38.2 Stiff, dark grey, SILT; trace fine sand; oxi- dizes rapidly. S -19 73.0 -75.5 SHELBY 0.3(TV) 81.0 38.9 38 27 II CONSOL `tedium stiff, dark grey, fine sandy, clayey SILT; oxidizes rapidly. S -20 79.0 -80.5 SHELBY 0.3(TV) 46.9 `tedium stiff. dark prey, silty CLAY to clayey 5 -21 83.0 -85.5 SHELBY 0.5(PP) 0.9(TV) 0.7(PP) 74.9 45.3 46 27 19 CONSOL SILT; trace of fine sand; oxidizes raoidly, Medium stiff to stiff, dark grey; silty CLAY, to clayey SILT; oxidizes rapidly. 0.4(0) 75.7 49.D QU S -22 88.0 -90.5 SHELBY 0.2(PP) 42.7 Top 0.3': Soft, light grey, CLAY; highly plastic. 0.7(TV) 0.6(PP) 80.0 39.5 37 26 11 CONSOL Bottom 1.0': Stiff, grey, clayey SILT :some layers contain a trace of fine sand; mixed varved and blocky texture; some oxidation. S -23 93.0 -95.5 SHELBY >1.0(TV) 0.5(PP) 51.4 Top I.5': Stiff, dark grey, clayey SILT; trace fine sand; oxidizes rapidly. 0.2(TV) 55.6 Bottom 0.2': Same as top. except soft. - 0.1(PP) S -24 98.0 -100.5 SHELBY 50.7 Very soft to soft, dark gray, fine sandy, clayey SILT; oxidizes rapidly. 5 -25 103.0 -105.5 SHELBY 40.2 Dark grey, clayey, silty, fine SAND; trace of medium sand, clay laminations, and shell fragments. S -26 108.0 -109.5 15,19.14 31.1 Dense, grey, clayey, silty, fine SANO and SHELL FRAGMENTS; some fine gravel. S -27 113.0 -114.5 5,7,9 -- No recovery. Sheet 1 of 2 TABLE 1 SUMMARY OF LABORATORY TEST DATA w-3919-01 Whop ewber toot or Duple limber Depth, let Sutler er Blau /e' Shear itranllh TSF: Dry Density It/. kW Centeet,D It brbers lhlls Outer Tests WOO Cltttlllettlen Lt, PL PI B -6 S -25 5 -29 116.0 -119.5 123.0 -123.4 10,10,50 50/5" 19.0 16.2 12.9 Top 1.0': Very stiff, green -gray, fine to coarse sandy, clayey SILT; trace of fine gravel; oxidizes rapidly (TILL-LIKE). Bottom 0.5': Very dense, blue -gray, fine tc coarse sandy, clayey, silty, fine GRAVEL; oxidizes rapidly. Very stiff, blue -prey, fine to coarse gravelly, fine to coarse sandy, clayey SILT: oxidizes rapidly (TILL - LIKE). Sheet 2 of 2 • TABLE 2. PILE AND DRIVING EQUIPMENT DATA Contract No.: Structure Nome and /or No.: Project: County: r ANVIL HAMMER RAM Pile. Driving Controctor or Subcontractor: ( Piles dri.ee by/ Manufacturer: Model Type: Serial No.• Rated Energy: G Length of Stroke. Explosive Force • (For diesel hemmers) Ram Weight: Rom Length: Rom Cross Sectional Area: ( For diesel hammers 1 ANVIL (with dles•I hommere) Anvil Weight: CAPBLOCX Material: , Are Thickness. Modulus of Elasticity - E (P.S.L) Coefficient of Restittrtion•e Helmet Bonnet — Weight: D------ PILE CAP -Anvil Block Drive heal' CUSHION PILE Cushion Material: Area: Thickness: Modulus of Elasticity - E (P.S.L.) Coefficient of Restitution -e Type:, Pile Size : Length (In Leads) - Diameter - Wall Thickness: Toper: Material: Weight /Ft • Design Pile Capacity • (Tons) Description of Splice Tip Treatment Description:. = Boring Logs Legend 111 0.0. 11111 aIaen 1ue1, 13" O.O. /a511p say's NOTE: 105 IIr11111t111.5 51151 111151511 l0s s111s51s115 bs,.Ial lot 15100.0 1111 It1.1 .41 Ins 1X.'11151 nap 15 11841511. B•1 B•2 w1. ° Standard Penetration Resistance • eta+. pr h o•pt11.11. Solt Description —I_ 11 10 30 0 11 5 11 11 i0 t 1 uu - rut Ism. . 110, s.alp, 1110 III,, 111 11,11 ------- 01 15 11 11 20 s] 1] 25 111 111 35 1 u Ism 01 - tt Is II loose. 0,150 I1 01110. ',lined. $11101111 1111, to close . ..- ' l - - ---' 11110 - 15111 I. ■1,'151 1 , 011c1. (Ins t1 •51115• 1110 5[,.11/011 ,,,., Of 'r.,. thy., 1111 5110 111,1 el 511/ 1 11 _ -- .:.. 11] 40 117 .N - O.Ilue 11155 1. 15511. block. flat te Illts. 1I1'I111y 11111. 1 1 us151c1 Standard olo,.w Penetration w.t Resistance • mow. per n. o.pllt,ll. 1 10 20 30 0 Soil Description 11 1] 11 1] IN - Y /rt 1.511. 11101 grey 11 II..a, floe vain.. elI,htIr .'Itp 1. 1111p, 0110 11.11 el roots 1150 - Yu l loess Is less.. Ills'', Iln. Is sslTue, .110 11151lanal sell 11.1 11 11 '1 1] 11] 111 r.110 - 0...s. block, lent t5 151111 satinet 117 Boring Logs Legend NOTE: 101 llnllIleell., host nptn111 U1 epptul.ate hostilities 111.1., sell I10r1 end IM Innelllen wee is pleret. B•3 B•4 Standard Penetration Resistance • Blame Per 11. Depths. Soil Description 11 21 31 0 1] 31Sj - Veil lute. Hsu, 11.1 seedy. 1111 trees el jrN4 - fere lens 1e lease. eve.. le 01111. Imp Ilse greased. 11111 3] 1 1] le] 11] 211 1110 - 01rp Loess. bussing oodles 1 rive to 01811, 1111 1e esd1,. Ir1Iesd e11e .cc.111 /11 1111 n1.e 11 1111 sod seed Ir1Veels 1111■ 11 11x1 Wound Water Standard Penetration Resistance • et.. Pere D.Pth Soil Description 11 1 0 11] 1, 35 40 45 50 1 1, 11] 1] 117 (HMO - 1.111. breve, flee Ir,1u1. /err iTTig, elle 1,111 1100 - l le wets loose. 1re.. le 14114. were floe 1$ 11.0 1r.l.. /. slll0llp 11111 Lt' - Oodles d , breve Is bl.e1. flee 10 @Idle. lreleed - 1.11 11 oodles 11111. grey. 11111. / /' /1110111 11.1 reedy, 1111111 jjL��1 - Wive donee. 11111. Iles le seller. ,lightly 11111 le stet.. site .te1111ee1 Nut el Ito 1111 • • • Boring Logs Legend B•5 O,aid Weir Standard Penetration Resistance • ac.,pon. Dapt16IL Soli Description 11 11 31 ! 0 11] 11] till - 1001 1 , Irs00, 1101 j,.la.d. 11111 11 0101 11111. e 1, S 101 1115 - 1001 1000. 101 4,.... 1100 sand► ►10 - 1000 1. 001101 1011. 4,4,, 10 11001, 1101 10 80110. •nasal 110 - 101100 / 1101. 1100.0 01100 s111 1 . 0111 10110101100 1114.1 1111 ..... /sad 0001001 nod 101/011 t t: the Ilr.11 llceilen lines ,0r.s..I Ins qp /siesta bundelles leans., 1011 tr0., and 140 transition ns 01 Ondual. B•5 cont'd Giound Wotan Standard Penetration Resistance • Blows per n. 11 11 70 1S 75 11 11 '3 14 Soli Description conttit 8110 - . 11111. 110, 11151111 01001. 11111, 1114 1.5.1 0111 1,11010 1115 - Sup 1011 00 40111. 11111. 100 In, Is 1110.10 11011, sl04.1. /1111111 floe toad,. 0011110/ /00110101 001 101001. 1111 10,111 /f 111.,010 401 101 1101 10010011. 11 -1011 00110. 1100 0010. 1114.1. 11(1 11111: 1011001 10111 urain size Classification Borings B.1, B.2, B.3 Sieve Analysis Hydrometer Analysis Size of Opening In Inches 1 Number of Mesh per In., U.8.81endarcl Grain Sloe In mm. I • 100 00 00 00 I0 o _1 nm.o. W M n ttv n ttv ••• m 0 0 •to il••• • • Grain Size In Millimeters tt• • 107 - 0 0 O 0 0 CB • ..- *0 1 ■ II, • . . 0 0 . a I0 00 1 0 1 0 0 0 S 0 CAI 1/1 00 1 0 4.15. I0 00 - 100 Cobb Io Coarse. ta] I. lino Coarso Modlum I Moo H FInos Snnd gtx U. Pt. P1 Of MV! 68mP.1° No. Dep Ih.II. U.S.C. Classification B-1, S-2 5 . 0-0. 5 Blown 1 ino sandy SILT, 1 ince o I roots 17.2 8-2, S-9 22.5-24.0 11 lack SAND, I taco o I wood li omen 1 s 21.4 0-3.5-0 15.0-10.5 11 1 ack I i no to medium SAND 0.8 • • • • Grain Size Classification Per cent Finer by Weight 100 00 00 l0 00 !0 40 30 10 10 0 Boring B•5 Siege Analysis Hydrometer Analysis Size of Opening In Inches j Ilumbor of Mo.h per In., U.5.Siandard Grain Size In mm. . 0 n rl 0 0 IV M 0 0 n -. -. CI n CS I. Grain Size In Millimeters • o n o n n 0 o n o 0 - — • --' 1Conrao l Mhodium and j Fino ' .�- 8revo l 6N(�Ie Deplh•II. U.B.G. Classification wGz LL PI Pf S -2 5.0 -6.5 Brown silty line SANG 9.1 S -4 10.0 -11.5 -- Dark -brown Iine sandy SILT • 24.3 S -B 20.0 -21.5 Black line to medium SAND 29.4 • ._. 13.0-.14.5 . S 20 __ - _ .. 1 I I. _ _ _ .11 I 1 I I I Lt .I_1_1 _.L .L _ .1 1 1 1 L_1... .-1_ _ IV M 0 0 n -. -. CI n CS I. Grain Size In Millimeters • o n o n n 0 o n o 0 - — • --' 1Conrao l Mhodium and j Fino ' .�- 8revo l 6N(�Ie Deplh•II. U.B.G. Classification wGz LL PI Pf S -2 5.0 -6.5 Brown silty line SANG 9.1 S -4 10.0 -11.5 -- Dark -brown Iine sandy SILT • 24.3 S -B 20.0 -21.5 Black line to medium SAND 29.4 • ._. 13.0-.14.5 . S 20 __ ■ • 0 0 0 0 0 n0 0 0 0 Ol 0 0 cobbles 1 Coarao Fine 1Conrao l Mhodium and j Fino 1 Flnoe 8revo l 6N(�Ie Deplh•II. U.B.G. Classification wGz LL PI Pf S -2 5.0 -6.5 Brown silty line SANG 9.1 S -4 10.0 -11.5 Dark -brown Iine sandy SILT • 24.3 S -B 20.0 -21.5 Black line to medium SAND 29.4 • S -20 13.0-.14.5 Black slightly clay fine sandy SILT 0 10 10 30 �0 S0 00 10 00 00 100 L,onulidauon Test 1 25 b. b, S•1U LStress in Tons per Sq.Ft. 0.01 2 3 4 5 6 7 8 9O 1 ,. 34 6 7.6 910 2 3 4 5 6 7 6 910 2_1_2_5_63_8 91 • Boring Sample Deplh•lt. W•C• /. Height In. Dia. In. Classification Deloro Alt r 8-5 S—I9 10. -12.5 :16 28 0.942 2.11 Organic Sill— medium s.tl II, dark grey with line sandy silt laminations 00 • • • ••!• • • 11 /IIr NJ O4/l JN• AIM Y N R l/A r 40'1110 r • 3 lrp 41.Nr t.l• a• •tcmtYv . Ma MAa•. N A Ntr AWAY Y 0080104.11•1140,80 14004 .loaf 101.884144 M* k010800 67 A1v171N JSVl /.f AwGW•••• J41■801 400 IN NOV /Neat MOM A/r £$ 411810V Jf JOP as 0t M647 IN /K J// AWN, its AY/ Ayr ■ ■ h LEGEND 1011081817 ma, • 1+9116wA txws 0••8401808 asMrs 4880,400•08 __ 8 .8 1, o tar n 6104 —. • —+ 0818/0/80 41149•510. JI Jr /. 1040 4081040, —11001 LN00.1 4004 01 IMI 0 Ai1ry0I 7Jr•w00 — Moaf KEGEL i ASSOCIATES INC. PSI LAND PLANNING ENGINEERING & SURVEYING 1110 Iv11CJIIM WAY 1.1111,.W& 18101 NLL11/1A O11KI 11•1■11100111.1•IW p111V1I.*A 1000 Pb . 11011 111. 1111 244 4;ie (C;ii;°""Ili°4 • STORM WATER DRAINAGE AND GRADING PLAN Per Y11 Tukwila Hotel J CITY OF TUKWI WASHINGTON ORDINANCE NO //h 7 AN ORDINANCE ESTABLISHING CERTAIN FIRE PROTECTION COUNCIL ACTION MEETING DATE NI AGENaA !Um ACTION C/ 41,y 16 P *4, cis' 6/ , 1 7 1 I 271. /1 /. P STANDARDS FOR THE CONSTRUCTION OF HIGH -RISE BUILDINGS. WHEREAS, the City of Tukwila is concerned about the health, wel- fare and safety of persons working or residing in high -rise buildings, and WHEREAS, the City wishes to provide appropriate standards for construction of high -rise buildings. NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF TUKWILA, WASHINGTON, DO ORDAIN AS FOLLOWS: Section 1. Definition: Story. As used herein, the definition of "story" shall be as contained in Section 16.04.050, as amended, of the Tukwila Municipal Code. Section 2. Scope and Construction of Ordinance. This ordinance shall apply only to buildings in excess of four stories, In all other re- spects the provisions of the Uniform Building Code, as found in the Tukwila Municipal Code 16.04.010 and the Uniform Fire Code as found in the Tukwila Municipal Code 16.16.011 shall be generally applicable to this ordinance including, but not limited to, provisions for the issuance of permits and collection of fees therefor, and provisions for penalties for violations and establishing administrative appeal procedures. If, in any specific case, this ordinance specifies materials, methods of construction or other requirements which are different from those specified in any other part of the Tukwila Building Code (Tukwila Municipal Code 16.04), the more restrictive requirement shall govern. Section 3. High Rise Fire Protection Required. 1. Every building shall be fully sprinklered in accordance with the standards set down in NFPA (National Fire Protection Association) #13. 2. Fire hose racks shall be provided with 75 feet of lined 1 -1/2 inch, single - jacket hose and adjustable shut -off plastic nozzles. The hose racks shall have a 2 -1/2 inch valve from the sprinkler riser with a 2 -1/2 inch to 1 -1/2 inch reducer provided for each rack. Additional racks, if required for approved coverage, may be taken off of the sprinkler cross - mains. The reducer shall not be required in these racks, which will have a.1 -1/2 inch Naive. 3. With regard to (2) above, separate dry standpipes shall not be required if the standpipes and the sprinkler risers are the same pipes, that is, "Wet" standpipes, as defined in Section 3801(c) of the Uniform Building Code. 4. One standpipe /riser will penetrate the roof and be provided with a 2 -1/2 inch wye outlet and valves. The portion of the standpipe /riser which penetrates the roof shallte protected from freezing by appropriate insulating materials. ' 5. An on site emergency water supply shall be provided with a capacity of not less than 15,000 gallons. ' 6. Two stand by fire pumps shall be provided and shall have auto- matic controls to utilize the emergency water supply. One pump shall be diesel powered. The other shall be electric and shall be capable of being powered from the building emergency power generator. 7. An emergency power generator shall be provided and shall provide IIpower for the following: (a) Emergency elevator; f) Elevator status panel. 13. Upon alarm activation, all elevator cars shall return to the ground floor and stay at that floor. Each elevator car shall be equipped with a Fire Department override control for manual control. One elevator shall be of a size large enough to accommodate a standard ambulance stretcher in the full horizontal position. (This elevator is to be on the emergency power system.) 14. The building must contain an emergency evacuation notification system which has been approved by the Chief of the Tukwila Fire Department for use in that building. 15. The building must contain a smoke evacuation system which has been approved by the Chief of the Tukwila Fire Department for use in that building, taking into consideration the design of the heating, ventilation and air conditioning, (HVAC) systems of the building. Section 4. Severability. If any section, subsection, clause or phrase of this ordinance is declared unconstitutional, or invalid for any reason, -such decision shall not affect the validity of the remaining portions of this ordinance. Section 5. Effective Date. This ordinance shall take effect , 1980. ( -/ Published Record Chronicle - June 6, 1980