2710 14TH ST BLDG A Geotech Report 2023-12-29

1.0 INTRODUCTION This report presents the results of our geotechnical engineering services for use in design of the proposed Baker Heights Redevelopment project located in North Everett, Washington. The proposed project site is shown relative to surrounding physical features in Figure 1, Vicinity Map and Figure 2, Site Plan. 1.1. Project Description The Baker Heights redevelopment project is a part of the Baker Heights Public Housing project being completed by the Everett Housing Authority (EHA) in the North Everett area. Redevelopment of the Baker Heights neighborhood includes demolishing existing abandoned post -WWII era low income single -story housing units and redeveloping about 6.3 acres of the neighborhood with new affordable housing units. Current conceptual plans indicate that EHA will develop three sites (Sites 1, 2, and 3) in the Baker Heights neighborhood as shown on Figure 2. We understand that Site 2 and the two eastern buildings along Pine Street within Site 1 may be developed during a future phase of the project. Redevelopment of each site consists of the following: ■ Site 1 is pentagonal in shape and occupies approximately 3.7 acres of Blocks 6, 7 and 8 between 14th Street and 15th Street. Site 1 will have the most intensive development as shown on Figure 3, Illustrative Master Plan - Site 1. Site 1 may be redeveloped with four new residential buildings that will be three to four stories tall. Approximately 105 new units for seniors, families and formerly homeless will be housed in the four buildings. Associated parking spaces for residents and visitors will be provided around the buildings. Various other site improvements such as the Community Green and the Accessible Hill Climb will also be constructed around the buildings. ■ Site 2 is rectangular in shape and occupies approximately 2.1 acres along the east side of Fir Street between 12th Street and 14th Street. Site 2 is located northeast of Site 1 and may contain four to six two- to three-story buildings. ■ Site 3 is located west of the intersection of Poplar Street and 14th Street and is approximately 0.5 acres in size. The community Friendship Garden will be relocated to this area. The Friendship Garden will consist of raised planting beds and a small shed structure for storage of tools and supplies. Pedestrian crossings and access will be made from the new housing development (Site 1) to the southeast. We understand that the buildings will be constructed at or near existing grades and will be supported on shallow foundations. We understand that no below -grade structures are planned for the project and associated improvements for each site will consist of sidewalks/hardscape, parking stalls and access drive lanes, landscaping, and new underground utility construction. Stormwater infiltration is being considered for the project. 1.2. Purpose and Scope The purpose of our geotechnical services is to evaluate soil and groundwater conditions as a basis for developing geotechnical design criteria for the proposed redevelopment. Field explorations and laboratory testing were performed to identify and evaluate subsurface conditions at the site to develop engineering recommendations for use in design of the project. Our services were completed in general accordance with our proposal dated August 6, 2019. Written authorization to proceed was provided by the EHA on August 20, 2019. GEOENGINEERS� October3O.2019 Pagel ' File No. 21288-002-00