TagPollution Control Hearings Board(1507)

South MSEWall Area Water Level Data 7 FIGURES Vicinity Map Site and Exploration Plan,South MSEWall Generalized SubsurfaceProfile, South MSEWall (Looking East) Generalized Subsurface Cross Section C-C' (Station 142+73) (Looking North) Generalized Subsurface Cross Section E-E'(Station 145+44) (Looking North) APPENDIX A FIELD EXPLORATIONS METHODS AND ANALYSIS Explorations and Their Location A-1 The Use of Auger Borings A-2 Standard Penetration Test (SPT) Procedures A-2 Excavation of Test Pits A-3 Monitoring Well Installation A-4 Monitoring Well Development A-4 Water Level Measurement A-5 References for Appendix A A-5 Hart Crowser Pagei J-4978-23 AR 044381 CONTENTS (Continued) Page FIGURES A-I Key to Exploration Logs A-2 Boring Log HC00-B200 A-3 Boring Log HC00-B203 A-4 through A-8 Boring Log HC00-B205 through HC00-B209 A-9 through A-12 Boring Log HC00-B211 through HC00-B214 A-I 3 through A-16 Test Pit Log HC00-TP200 through HC00-TP207 A-I 7 through A-22 Test Pit Log HC00-TP209 through HC00-TP219 APPENDIX B LABORATORY TESTING PROGRAM Soil Classification B-1 Water Content Determinations B-1 Grain Size Analysis (GS) B-1 Atterberg Limits (AL) B-2 FIGURES B-1 Unified Soil Classification (USC) System B-2 through B-8 Particle Size Distribution Test Report B-9 Liquid and Plastic Limits Test Report Hart Crowser Page ii ,1-4978-23 All 044382 SUBSURFACE CONDITIONS DATA REPORT SOUTH MSE WALL AND ADJACENT EMBANKMENT THIRD RUNWAY PROJECT SEA-TAC INTERNATIONAL AIRPORT INTRODUCTION Thisdata report presentsinformation on subsurfaceconditions,basedon geotechnicaland hydrogeologicfield and laboratorytestingto supportthe South MSEWall and adjacentembankmentconstructionfor the ThirdRunwayProject at the Sea-Tat InternationalAirport. The siteis located at the Sea-Tat InternationalAirport, in SeaTac,Washington (referto Figure1, Vicinity Map). The shadedarea on Figure1 ispresentedon Figure2, Site…

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FROM: Douglas Lindquist, Barry Chen, P.E.,and Mike Bailey, P.E.,Hart Crowser, Inc. RE: Seismic Basisof Design Third Runway Project .... J-4978-14 •.)o '" _ O' This memo provides support information to HNTB and the Port of Seattle to select a seismic basis of design event for final project design analyses. This memo presents a comparison of analyses by Hart Crowser for the 475- and 975-year return interval seismic events for representative embankment and MSE wall design components. FalrD¢3r_ Summary Selection of the 475- or the 975-year event as the seismic basis of design event impacts the following areas of design for the Third Runway project: J_..... o:, 1. Spatial extent of ground improvement needed to mitigate liquefaction (small effect); 2. Extent of embankment reinforcement below MSE walls to prevent seismic instability (moderate effect); J...... 3. Factor of Safety in slope stability analyses (moderate effect); and 4. Magnitude of deformation of the MSE walls (moderate to large effect). The 475-year return period corresponds to a I0 percent probability of exceedence in 50 years, whereas the 975-year return period corresponds to a 5 percent probability of Lon__each =xceedence in 50 years. For comparison, we understand the Port of Seattle used the 475- , event for design of the South Terminal Expansion and for analysis of deepening the ber_,..-at the Terminal 5 Wharf. Portland Comparative Analyses Resultsof our analyses for representative sections are described in this memo, to provide the basis for comparing the effect of using one design event or the other. The…

Summary of Results from Laboratory Tests 3 Hydrogeologic Conditions 3 USE OF THIS REPORT 5 REFERENCES 6 TABLES Key to Tables 1 through 4 7 Summary of Consolidation Test Results 8 Summary of Isotropically Consolidated Undrained (CU) Triaxial 9 Compression Test Results Summary of Unconsolidated Undrained (UU) Triaxial Compression Test Results 10 Summary of Direct ShearTest Results 11 Water Level Data 12 Summary of Hydraulic Conductivity Estimates 17 FIGURES Vicinity Map Siteand Exploration Plan,North Safety Area Cross Section 105+20, 154th Realignment Stationing Cross Section 110+47, 154th Realignment Stationing Groundwater Elevation Contour Map Wet Season (December 9, 1999) Hart Crowser Page i }.4978-18 AR 044226 CONTENTS (Continued) Page APPENDIX A FIELD EXPLORATIONS METHODS AND ANALYSIS A-1 Explorations and Their Location A-1 The Use of Auger Borings A-2 Standard Penetration Test (SPT) Procedures A-3 Use of Shelby Tubes A_ Pocket Penetrometer (PP) and Torvane (TV) A-4 Excavation of Test Pits Ao5 Piezocone Penetrometer Probes A-5 Cone Penetration Test Procedures A_ Monitoring Well Installation A-7 Monitoring Well Development A-8 Water Level Measurement A-8 Hydraulic Conductivity Testing (Slug Testing) A-8 Double-Ring Infiltrometer Test A-9 References for Appendix A A-9 FIGURES A-IA Keyto ExplorationLogs A-I B Electric(Piezocone)Cone Penetrometer A-2 BoringLogHC99-B42 A-3 BoringLogHC99-B44 A-4 BoringLog HC99-B48 A-5through A-7 BoringLog HC99-BS0through HC99-B52 A-8through A-12 BoringLog HC99-B54through HC99-B58 A-13 BoringLog HC99-B60 A-14 BoringLog HC99-B62 A-15 BoringLog HC99-B64 A-16 BoringLog HC99-B72 A-17through A-22 BoringLog HC99-B75through HC99-B80 A-23 through A-38 BoringLogsHC00-B160through HC00-B175 A-39 TestPitLog HC99-TP23and HC99-TP24 A-40 TestPit LogHC99-TP25and HC99-TP41 A-41 TestPit LogHC99-TP43 A-42 through A-44 Cone PenetrationProbe Log HC99-P01through…

FROM: Michael Bailey, P.E., and Barry Chen, P.F..,Hart Crowser, inc. RE: Geotechnicai Input to MSE Wall Design Third Runway Embankment =--, 4978-30 CC: Mr. john Sankey,P.F-,RECo Mr. Rob Millar, P.F_,HNTB .E_n,r) F.C; This memorandum presentsgeotechnicaidesignparametersand related information usedas the basisfor design of the Third Runway MSE walls. The proposed geotechnical basisof designinformationwas originallypresented in a Hart Crowser's draft memoranda dated _:=.,e_ June22 and August21, 2000, for discussionwith HNTB and RECd. Subsequently the design team decided to adopt the 1996 A,_LSHTO code with interim addenda through 2000 ("the/_LSHTO code') as the basisfor design. . .ar.-.-=vZ':_ This memorandum retains the organization and much of the inTormation presented in the previous draft versions. Hart Crowser has added inTormation to document changes in geotechnical design parameters that we have adopted based on additional tests, analyses and discussions with the Embankment Technical Review Board (ErRBI. • ,:.le3_ Geotechnical Analysis Geotecnn=cai design informagon summarized herein was used as input into RECo's internal -' ..... - o, - .................. _, _.e i . "_ote that the externat staoiiiw anaivsesindic3ted i_ seine '=_asestha%;etnTorc_=memstri_ cross se._ionai area. ien_. ann/or ael_tb of the remTorcea zone ' embedment) neecied to 0e _ncreaseo to meet AASHTC) target "ac:or of satetv cntena. Recommenoed chan_es to satls'N the comoound ann _iooai SlOOestability rec_u_rements are _resentea in an ...... 1314 AR 053235 rJLJ U H_TBCorporation 4S-5-3C Januar?'I i.20C: PaRe " Minimum Factorsof Safety MSE design is based on 1996-2000 A/LSHTO criteria, as -veil as any other more strinRent requirements based on RECcs experience with wall…

FROM: BarryS. Chen, P.E.,and Michael Bailey,P.E., Hart Crowser, inc. RE: Stability Review of RECo 30% Design : ,.. Sea-TacThird Runway Embankment Project 4978-30 CC: JohnSankey,RECo Rob Miller, HNTB .:=-...,.,c: Hart Crowserhascompleted our review of the RECo30 percent design on the NSA, West, and South/viSEwallsof the SeaTacThird Runway Project. This lastpart of our review s=,,_ consistedof independent limit equilibrium analysesto verify stabilitysatisfiescritena in the AtLSHTOdesignprocedure. We calculated the factor of safety for steady state, end-of- construction,pseudo-static,and post-earthquakeliquefaction conditions for both global and compound failure modes. This memorandum providesour recommendations on changes of .:,:._.:., steelthicknessand embedment depth for some sections,based on the resultsof stability analyses. The limit equilibrium analyseswere basedon the RECo .30 percent design,and soil parametersas describedin Hart Crowser's memorandum "Ceotechnical Input to MSE Wall ..... Design." (An update to the August 22, 2000, draft of this memo is being submitted concurrentwith this memo). Hart Crowser alsouseda finite dih:erencecomputer program (FLAC)to model typicatMSE wall sect3onsto provide an independent assessmentof wall oer_orrnance,whichi._notre_uire_hv A,,-'SHTO.Resuits_,_._.p='_ACrncdelin_._re presentedseparately. Our analysesfollow RECo'sassumptionsin modeling the reinforcing stnp as indicated in the spreadsheetwe receiveo with their .30:)ercent desi_.n.This -_coroach enabled Hart Crr)w_er to. equally oiviclethe reinforcement densityinto D.vo"eouivaient" stnos for each paneJ. whlct_ ve apptied to a unit thicknessoi ] foot for use in the plain strainanalyses.We AR 053230 °. 1312 U HNTB 4978-30 january9.200"> Page 3 calculated the pullout length for each equivalentreinforcing strip based on the same criteria RECo usedin the internal stabilitydesign,indudin8 corrosion reducuon of the steel for the design life of the structure. The computer…