EXH0690025788

Appendix A Geology and Field Exploration I ' Appendix B Laboratory Testing _ r- j - ? : t- • ..o -m- AR 025791 AGI LIST OF ILLUSTRATIONS Figure 1 Site Plan Figure 2 Geologic Sections Figure 3 Embankment Fill Zones . Figure 4 Maximum EmbankmentSection (N 18,000) Figure 5 Phase I Embankment Plan Figure 6 Phase 1 Embankment CrossSection li:ii:ii_ Figure 8 Fill Type 1 and 2 Gradation ,.-ii. Figure 9 Fill Type 3 and 4 Gradation ,i:... Figure 10 Typical Moisture-Density Control Criteria Figure 11 Settlement Platform Detail " t I. !.. l f J i. :..,- I'; : t ,! L AR 025792 t f AGI i OF TABLES ifLIST J Table 1 Main EmbankmentArea Explorations I J Table 2 Groundwater Elevations Table 3 Embankment FillMaterialGradation Table 4 Embankment Fill Placementand Compaction Criteria I ? rk_ ! .. J AR025793 AGI EXECUTIVESUMMARY AGI Technologieshas completedgeotechnicalinvestigationsand designrecommendationsforthe 1998Phase IEmbankment Construction,an earthworkprojectassociatedwiththeconstructionofthe thirddependentrunway attheSeattle-TacomaInternationalAirport(Sea-Tac).Thisreportpresentsa discussionoftheoverallproject,summarizespreviousdesignreports,and providesthegeotechnical recommendations for construction of the 1998 fill_ [ The Phase 1 embankment will consist ofapproximatm_y 1,000,000 cubic yards of fill placed along the northern 1,100 feet of the existfing west side runway embankmenL The fill will be placed adjacent to i and benched into the existing embankment. It will have a maximum thickness of 70 feet with a maximum slope height of approximately 90 feet. il..IIII I!7i;: f. Geotechnicalexplorationsperformedoverthelast7 yearshave beenused tocharacterizetheareaof i theflU.The majorityofthe511willbe foundedon denseGlacialTill,which shouldprovidea firm foundation for the fill We anticipate the removal of relatively minor amounts of unsuitable…

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PSCAA Advisory Council Meeting Agenda
Add to CalendarMWednesday Mar 11, 9:00am - 11:35am
1904 3rd Avenue, Suite 105, Seattle, WA 98101
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 [...]