EXH0405021838

. - m,. _1| I |l II IIII |J IJ _ - III II II • 6August200i U.$. Army Corp_of Engineers RegulatoryBnmch P,O. Box 3755 $¢s_Je,,WA 98124 ATTN: Muff-yWalkodGailTcr_ WashingtonState D=partmentof F_ology 8horelandsandEnvironmcn_Assistanccl_ugram ,3190-160thAve.SE Bell_vu©,WA 9g008 ATI'N: Ann Kormy.Envimnm_ Specialist Subject: CommentsonRecentlyl_ccivcd Do_unent_P_rlainingto ScattleTacomaInternationalAkpor¢I_jcct Thkd Runway- EmbankmentFill andW_'_MSE Wall OeoSyntcc Consu|t_s (GcoSyatec)has bccfl lcCsixcdon behalf of the Airport CommunitiesCoalidon to l=ovid¢a technicalreviewof inwsti_tJon, analysisand design relatingto con,muction of theembenkn_ntfill and W_ bi_,hanioally S_iliz_! Earth 0riSE) Wall cI_a_s of _ laupos_! ThUd Runway F.xpandonProjectat the 8¢alfle Tacoma International Akport. C._oSyn_ f_t commJ_ed on proj,_t do_un_nts in a lett_' datcd*16 FebruaW 200I. This l©ttcrsummarizes O_Syntec's comments on documentsrelatingto th_projcctwhich were not availableduringthe tint r_vk_v. The. new d_um¢nts_evi¢_ _ t1_following: • '_co_hnicalEng_edngAnalysesandl_commeadatiora-ThirdRunway Embankment- SeaClc-T_.omsIn_'natIonal Airport- SeaTac, Washington," Preparedfor_ by HartCruwser,December4, 2000. • "AdditionalInformationon the Seismic I_dgn_" HartCrowserMmorandum, hauary25,2001. • "RcviscdMethodsandResultsof Liquef_tionAnalys_- ThirdRunway Embankment- SeaTac,Washing_ort,"HartCrowser_cmorandum,March5, 2001.... ,-- I:'_WK0)80_Submit||PC_oSyrltccSnT_ CornmclttLcucHl2,doc _t_, _t • Amen,I"X•/_..sIt_ Fb.ChkquoIL ._m_, GA,Atk=_0A.l_mh_s.MD• i.lual_,n_]Beck,CA•'_'_l_v__ CA ..... AR 021838 GsoSvme:C_ GeoSynteo'spersonnelin chargeof the reviewincludePa_ck C.Luole,Ph,D,, P.E,,andEdwardKavazaniian,Jr.,Ph.D.,P.E. Introduction L'xearlierlettersdated16 February2001, 15 March2001, and22 June2001, GeoSynte¢hasident_ed consistentgaps tnthe analysescarriedout by thePortof Seattleand its cormut_antsin their effom to design this project. The review of edditiona/documentspresentedhereinunfortunatelyfollowsthis trend. Aprojectof the , mai_tude and impodar_eof _e ThirdRunwayExpansi_ at lhe SeattleTacoma Intern_onalAirportrequiresa_erence to the highest of _de.,ds. The various elementsof r_edesignprocessmustbe scrutinizedst everylevel in orderto givethe resultings_tcture every chanceof weatheringextremeevenu;andremainingsafeand operationalfor the econnmlclifeofthe facilityandbeyond. In the discussionthatfollows, severalkey pointsandconcernswill be __ regarding_he analyses pz_sentedin these _:ently _'tewed clocuments. In our .discussions,we focuson thefollowingessentialfindings: • the seismic riskpresentedby thenumeroussourcesof potentialem_hquakesIn…

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PSCAA Advisory Council Meeting Agenda
Add to CalendarMWednesday Mar 11, 9:00am - 11:35am
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Call to order – Roll Call – Quorum Established – Land Acknowledgement We would like to acknowledge that our Agency operates in four present-day counties, which are the traditional lands of the Coast Salish people, past and present. This acknowledgement does not take the place of authentic relationships with indigenous communities in our jurisdiction and [...]