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2015-0294 Salish Pavillion Structural Beck.pdfBeck & Associates, PLLC Structural Engineering & Code Consulting April 7, 2015 Leif Bjorback Building Official City of Edmonds 1215 1h Avenue North Edmonds, WA 98020-3145 Subject: Top Pot — Salish Crossing — (Structural Only Review) Permit: BLD2015-0294 Per your request, Beck & Associates has completed a structural only review of the drawings and calculations for conformance with the 2012 International Building Code (IBC), as adopted and amended by the State of Washington and the City of Edmonds. Our review of the plans and calculations indicates that corrections are necessary prior to permit issuance. The applicant should address the following comments in itemized letter format in addition to making corrections & revisions to the drawings. Geotechnical 1) Some past geotechnical information, generally addressing the greater Salish Crossings area, was provided in the submittal for this project. However, a complete geotechnical report is required to be provided. The geotechnical report is required to address/include the following in accordance with the IBC. 1803.5.12, 1803.6 a) Seismic lateral earth pressures b) Potential for liquefaction c) Assessment of potential consequences of liquefaction and soil strength loss d) Discussion of mitigation measures e) Reporting shall include the elements identified in 1803.6. 2) If the geotechnical engineer recommends that they provide a review of the plans, this review will need to be completed prior to permit issuance. The geotechnical engineer is required to: a) Provide a review of the design drawings in order to verify that the recommendations presented in the geotechnical report are adequately addressed in the design. b) Provide a letter summarizing the review and identifying any recommendations. All recommendations are required to be addressed in the design drawings that are resubmitted in response to the Beck & Associates review letter. 16425 SE 66th Street, Bellevue, WA 98006 • beckpllc@msn.com • PH: 206-313-3739 Permit 2015-0294 April 7, 2015 Page 2 of 2 lateral 3) The structural engineer of record is required to provide an analysis for resistance of lateral forces (wind and seismic for the building) at the foundation level. Typically, small diameter steel piles are not able to resist lateral forces unless additional battered piles are provided. Alternatively, passive pressure may be used as recommended by the geotechnical engineer. Please contact me should you have any questions. Respectfully, Douglas Beck, PE, SE Beck & Associates, PLLC 16425 SE 66`h Street, Bellevue, WA 98006 . beckpllc@msn.com . PH: 206-313-3739