06-EWC Geotechnical Plan Review Letter - Copy - Copy.pdfLANDAU
ASSOCIATES
April 1, 2019
environmental WORKS
402 151h Avenue East
Seattle, Washington 98115
Attn: Ms. Alise Kuwahara Day, AIA
Transmitted via email to: nmorin@eworks.org
Re: Geotechnical Plan Review
Edmonds Waterfront Center Project
Edmonds, Washington
LAI Project No. 1738001.010.011
Dear Ms. Kuwahara Day:
Landau Associates, Inc. (LAI) has provided geotechnical engineering services for the proposed
Edmonds Waterfront Center project in Edmonds, Washington. LAI has also provided geotechnical
engineering services for the proposed Edmonds Waterfront Development and Restoration and Ebb Tide
Condominiums Walkway project, which is related to the Edmonds Waterfront Center project.
LAI supported the design of the two above -referenced projects by reviewing geotechnical information
collected by others in the project area, advancing a series of subsurface explorations, conducting
laboratory testing on selected soil samples, performing geotechnical engineering analyses, and
developing geotechnical engineering conclusions and recommendations. The results of the
geotechnical engineering services that LAI provided for the two projects are summarized in the
following documents:
Report titled: Geotechnical Engineering Study, Proposed Edmonds Waterfront Center Project,
Edmonds, Washington, dated July 18, 2018
• Report titled: Geotechnical Engineering Report, Proposed Edmonds Waterfront Development
and Restoration and Ebb Tide Condominiums Walkway Project, Edmonds, Washington, dated
August 28, 2018
Technical memorandum titled: Supplemental Geotechnical Recommendations, Edmonds
Waterfront Development and Restoration and Ebb Tide Condominiums Walkway Project,
Edmonds, Washington, dated March 12, 2019.
Geotechnically relevant aspects of the Bid Documents prepared by Reid Middleton, Inc. and titled
Edmonds Waterfront Center Project, dated March 15, 2019 were reviewed to confirm that the
recommendations presented in the above -referenced geotechnical documents prepared by LAI for the
two projects have been properly interpreted and implemented in the design.
During our plan review, it was noted that the minimum tip elevations of the augercast pile
foundations shown on Sheet S2.1 of the Structural Plans were unclear. Provided Sheet S2.1 is updated
to clearly indicate the minimum tip elevation of each augercast pile, it is our opinion that the
130 2nd Avenue South • Edmonds, Washington 98020 • (425) 778-0907 • www.landauinc.com
Geotechnical Plan Review
Landau Associates
recommendations and design considerations presented in the above -listed geotechnical documents
have been properly interpreted and implemented into the project design.
Within the limitations of scope, schedule, and budget, Landau Associates' geotechnical review of the
Bid Documents for the proposed Edmonds Waterfront Center project in Edmonds, Washington was
completed in accordance with generally accepted geotechnical engineering principles and practices in
this area at the time this letter was prepared. No other warranty, express or implied, is made as to the
professional advice included in this letter.
We appreciate the opportunity to provide geotechnical services on this project. If you should have any
questions or require clarification on any of the items discussed above, please call me at
(425) 778-0907.
LANDAU ASSOCIATES, INC.
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Steven R. Wright, PE
Principal
SMG/SZW/rgm
[\\ED M DATA01\PROJ ECTS\1738\001\R\P LAN REVIEW LETTER\PLAN REVIEW LETTER.DOCX]
cc: Mr. Paul Crocker, Reid Middleton, Inc.
April 1, 2019