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HomeMy WebLinkAboutSecondary Geotechnical Engineering Review 2 1101 South Fawcett Avenue, Suite 200 Tacoma, Washington 98402 253.383.4940 October 30, 2020 City of Renton Community & Economic Development 1055 South Grady Way Renton, Washington 98057-3232 Attention: Angelea Weihs Subject: Geotechnical Engineering Review VEK on Aberdeen Renton, Washington File No. 0693-089-00 INTRODUCTION This report presents comments from our review of geotechnical engineering analyses of the proposed VEK on Aberdeen development located at 957 Aberdeen Avenue NE in Renton, Washington. Our services are being provided to the City of Renton Department of Community and Economic Development in accordance with our agreement dated September 21, 2020 and executed October 5, 2020. The proposed development will include construction near Sensitive Slopes and a Protected Slope as defined by City of Renton Municipal Code. The project also includes construction of a stormwater pipe proposed within the protected slope that would discharge into stream and wetland buffers. The City has requested a third-party review of the geotechnical report and grading plan to confirm that the analysis and conclusions provided are appropriate before approving the development. We reviewed a geotechnical report prepared for the project by The Riley Group, Inc. (RGI) dated September 2, 2020 addressing slope stability. We also reviewed the preliminary civil plans prepared by Encompass Engineering and Surveying dated May 8, 2020. We provided our comments on these documents in a letter dated October 15, 2020. GEOTECHNICAL REVIEW We reviewed the document “Response to Draft Comments” prepared by The Riley Group dated October 23, 2020. We have no further comments on this document or previously reviewed documents. City of Renton | October 30, 2020 Page 2 File No. 0693-089-00 CONCLUSIONS It is our opinion that the project can be constructed generally as envisioned without causing undue risk to the public provided that the recommendations in the project geotechnical report are incorporated into the design and followed during construction. Within the limitations of scope, schedule and budget, our services have been executed in accordance with generally accepted practices for geotechnical engineering in this area at the time this report was prepared. Our services were provided to assist the City of Renton evaluate a geotechnical analysis submitted as part of a permit application. GeoEngineers cannot attest to the accuracy or completeness of the materials provided. The conclusions, recommendations and opinions presented in this report are based on our professional knowledge, judgment, and experience. No warranty, express or implied, applies to the services or this report. If there are any questions or if you wish to discuss any of our review comments, please contact us. Thank you for the opportunity to be of service to the City of Renton. Sincerely, GeoEngineers, Inc. Lyle J. Stone, PE Associate Geotechnical Engineer 10/30/2020 LJS:tt Disclaimer: Any electronic form, facsimile or hard copy of the original document (email, text, table, and/or figure), if provided, and any attachments are only a copy of the original document. The original document is stored by GeoEngineers, Inc. and will serve as the official document of record.