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1.0 INTRODUCTION
<br />This report presents the results of GeoEngineers Inc.'s (GeoEngineers') geotechnical engineering and rigid
<br />inclusion ground improvement design services for the proposed development at the PGL site as part of Port
<br />of Everett Waterfront Place Center in Everett, Washington (Vicinity Map, Figure 1).
<br />We understand that the proposed development at the PGL site includes the design and construction of two
<br />one-story retail buildings located at the corner of 18th Street and the West Marine View Drive (State Route
<br />529). The north boundary of the project site is approximately 80 feet south to the bulkhead at the South
<br />Marina, next to the Inn at Port Gardner; and the retail building footprints are approximately 200 feet south
<br />to the bulkhead. An existing retail store building is on the west side of the project site, as shown in the Site
<br />Plan, Figure 2. Based on our communication with the Port and PND Engineers, Inc. (PND, project structural
<br />engineer), and review of the available engineering drawings within the site vicinity, we understand that the
<br />bulkhead north of the project site is basically a rock dike built in the mid-1970s, with marine sediment fill
<br />behind the dike, and a concrete retaining wall, about 3 feet high, is sitting on top of the rock dike.
<br />Based on the review of available geotechnical information within the site vicinity and our previous project
<br />experience at the Port of Everett, lateral spreading and ground settlements caused by soil liquefaction may
<br />have significant impacts on the planned foundations of the proposed two retail buildings at the PGL site.
<br />To support the new construction of the two retail buildings, the ground improvement with rigid inclusion is
<br />considered as the foundation support for this project.
<br />The objectives of GeoEngineers' geotechnical engineering and rigid inclusion ground improvement services
<br />are to provide PND geotechnical seismic design criteria, foundation recommendations in support of the
<br />building design and construction at the site, and develop a ground improvement design consisting of rigid
<br />inclusion elements to mitigate the ground deformations (e.g., lateral spreading and vertical settlements) of
<br />the building foundations for the proposed new buildings to meet the building code criteria.
<br />2.0 SITE CONDITIONS
<br />The site conditions were evaluated by reviewingthe available geotechnical, geological, groundwater within
<br />the site vicinity, and the design and construction information for the existing rock dike at the South Marina
<br />corner. The related documents that we reviewed included the following:
<br />■ "Report Soils Investigation for Proposed Norton Avenue Terminal, Everett, Washington," prepared for
<br />Reid Middleton, by Roger Lowe Associates Inc., dated November 30, 1977.
<br />■ "Augercast Pile Capacities for Pioneer Marina Plaza, Everett, Washington," prepared for Commercial
<br />Design Associates, by Earth Consultants Inc., dated March 31, 1988.
<br />■ "Preliminary Environmental Site Assessment for Pioneer Marine Plaza, West Marine View Drive, Everett,
<br />Washington," prepared for First Western Development, by Earth Consultants Inc., dated November 30,
<br />1989.
<br />■ "Public Access and Transient Moorage Drawings," prepared for Port of Everett, by Reid Middleton, dated
<br />August 28, 1997.
<br />■ "Geotechnical Engineering Services Report for Proposed South Marina Improvements, Port of Everett,
<br />Everett, Washington," prepared for Moffat & Nichol, by Landau Associates, dated February 12, 2007.
<br />GWENGINEERS.�; April 1, 2022 Page 1
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