1318 37TH ST 2018-01-02 MF Import

GEOTECHNICAL ENGINEERING STUDY Proposed Rucker Village Condominiums Grand Avenue at 38th Street Everett, Washington This report presents the findings and recommendations of our geotechnical engineering study for the site of the proposed Rucker Village Condominiums in Everett. The Vicinity Map, Plate 1, illustrates the general location of the site. We were provided with a Preliminary Grading plan of Rucker Village. The plan, which was developed by Ostergaard-Robinson and Associates, is dated October 1, 1996. The plan shows the property dimensions, existing topography, proposed building footprints, proposed finish floor elevations, and general final grading. Based on the provided plan, and on discussions with James Pirie, we anticipate that three multistory condominium buildings will be constructed on the property. Each of these buildings will be underlain by a parting garage. The garage floor elevations will be 310 feet for Buildings 1 and 2, and 305 feet for Building 3. Paved parking will also be provided outside of the building footprints. Vehicle access to the site will be from High Street, which defines the southwestern border of the site, and from the alley along the eastern side of the site. Access is • also provided at the northeastern corner from 37th Street and at the southeastern corner from 38th Street. Extensive grading will be required for this development. Cuts of up to at least 10 feet will be needed for the upslope side of each building, while fills of '10 to 15 feet are planned under the opposite, downslope, sides of the buildings. Generally, the central portion of the property will be cut down, and fills will be placed along the western and northern sides for building, parking, and driveway areas. The northern driveway and northwestern parking areas will require fills of up to 20 feet above the existing ground surface. Retaining walls rising up to 10 feet in height above the sloping fill appear necessary at several corners of the parking areas. SITE CONDITIONS Surface The irregularly shaped parcel was undeveloped at the time of our field work. We did, however, note a concrete slab in the centrai portion of the site that may be the remains of a structure. Concrete rubble was piled around this slab. Vegetation on the site consisted primarily of grass and weeds. A heavy growth of blackberry vines extends along the southern, western, and northern boundaries of the property, and numerous small, deciduous trees were scattered around the site. The 37th and 38th Streets abut the northern and southern property lines. Grand Avenue curves along the northwestern side of the property, while High Street extends along the southwestern side. A gravel alley adjoins the northern half of the eastern boundary. The ground surface generally slopes down in all directions away from the center of the site. Along the southern and eastern edges of the property, the ground slopes moderately at an inclination of no more than 20 to 25 percent. The western and northern approximate 120 feet of the site slope steeply at an average inclination of 40 percent. A majority of these steep slopes appear to have been created when High Street, Grand Avenue, and 37th Street were constructed. There are D/20 GEOTECH CONSULTANTS, INC.