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r ' r 0 •S <br /> ~``� a s s o c i a t e d s//o4 ,L`(/ , <br /> earth sciences <br /> / 47 <br /> August 6, 2019 <br /> Project No. 190168E001 <br /> City of Everett <br /> 3200 Cedar Street <br /> Everett, WA 98201 <br /> ATTN: Mr. Drew Martin <br /> RE: Marquee Apartments Everett Shoring <br /> 2721 Wetmore Avenue, Everett WA <br /> COE #PW1907-055 <br /> Response to First Building Review—Shoring. <br /> Dear Mr. Martin: <br /> As requested, Associated Earth Sciences, Inc. (AESI) has prepared a response to the Correction <br /> Notice #1 dated August 2, 2019. The comments from the City reviewer are followed by a <br /> response from the geotechnical engineer and are based upon the information obtained from <br /> the original study. It should be noted that the Figure 3 included in the report tat was submitted <br /> is not correct. The correct Figure 3 is attached to this letter and referenced in the following <br /> responses. <br /> 1. The soil parameters given in section 13.1 of the geotechnical report dated May 28, 2019 <br /> were used in the design of the soil nail wall which is the standard for soil nail wall <br /> design. The reference to the pressure diagram in the report is for design guidance to <br /> the external loadings that may apply in the given situations. We have reviewed the <br /> calculations for the sail nail wall and the parameters of the design are consistent with <br /> that given in the geotechnical report. vk� <br /> 2. As noted in the previous response the soil parameters given in the geotechnical report <br /> are what was used in the calculations for soil nail wall design. The reference to Figure 3 <br /> is for surcharge loading including live loads and the sloping backfill. (-1=- <br /> 3. As noted previously Figure 3 is included in the recommendations for the design of a soil <br /> nail wall to indicate the external loadings such as the traffic surcharge. The soil nail wall <br /> design has included a vertical loading for a traffic surcharge of 250 psf, and a 500 psf <br /> load for construction traffic. The loadings also include building loads for the adjacent <br /> properties. All these loadings are suitable for design. Q\t <br /> 4. The 250 psf surcharge included in the Figure 4 and section 13.2 is a traffic loading. This <br /> is translated to a horizontal loading of 75 psf over the top 10 feet in the diagram. The <br /> Kirkland Office 1911 Fifth Avenue I Kirkland,WA 98033 P 1425.827.7701 F 1425.827.5424 <br /> Everett Office 129113.4 Hewitt Avenue,Suite 2 I Everett,WA 98201 P 1425.259.0522 F 1425.252.3408 <br /> www.aesgeo.com <br />