EXH1229049866

Seattle, Washington 98124-2255 _ATTN: Jonathan Freedmart, Project Manager __ Washington State Department of Ecology _ _, Shorelands and Environmental Assistance Program O _t" _:_ 3190 - 160_ Avenue Southeast _ 3: _!'_/7 Bellevue, Washington 98008-5452 , tTi "-" ATTN: Ann Kenny, Environmental Specialist _- Dear Mr. Freedman and Ms. Kenny: _' am writing to summarizethe findings and qualifications of a panel of independent experts, convened by the Port of Seattle to review the technical aspects of the embankmentfill and mechanically stabilized earth (MSE) walls proposed for constructionof the thirdrunway at Seattle-Tacoma InternationalAirport. I am providing this letter because it was not possible for all the members of the Review Board to be at the public meeting scheduled for January26 and27, 2001. The Board is in general agreement with the design approaches and methodologies employed by the design team on the third runway project. The Board further concludes that the embankment and MSE wall investigations and technical analyses being conducted on the project are at an appropriate level of detail and thoroughness deemed necessary for a project of this complexity and are in compliance with current engineering and construction industry practice. Based on their review, the Board identified questions and/or provided suggestions for further study. The Board recommended that additional subsurface explorations be accomplished in one area of the site in order to verify the nature and extent of the different soil units and to develop site specific correlations between different exploration methods. These additional explorations have since been accomplished and…

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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 [...]