4808 BELVEDERE AVE 2016-01-01 MF Import

GEOTECHNICAL ENGINEENtING STUDY Proposed Single-Family IRealdence 47XX Belvedere Avanue Everett, Waahfnaton This report presents the findings and recommendations ot our geotechnical engineering study for the site of the proposed remodel and additions to the residence in Seattle. We were provided with a site plan from the project archiiect, Shelter Form, in U fax dated September 1, 2005. We also observed the full plan s��t during our visit on September 6, 2005. Based on the plans, we understand that the new residence is proposed to be located on the northeastem potion of the site. It will have a garage on its westem side that has a slab grade of elevation 240 feet, and a main living area on its eastem side whose lowest floor graae is elevation 248.5 feet. The garage Floor will be nea� the existing grade to about 10 feet below existing grade. The eastem living portion of the residence will be located 5 feet from the adjacent property Iines, and cuts of 5 to 15 feet are proposed near the property line for the residence. A driveway will connect the garage to Belvedere Avenue. A portion of the driveway will be situated about 10 feet above the existing site grade, while another purtion will be up to about 7 feet below the existing grade. A rockery is proposed at the outside edge of the driveway. If the scope of the project changes frc,m what we have described above, we should be provided with revised plans in order to determine if rr�odifications to the recommendations and conclusions of this report are warranted. SURFACE The Vicinity Map, Plate 1, illustrates the general location of the site in the westem portion of Everett. The five-side lot is located on the south/southwestem side of Beivedere Avenue, having approximately 70 feet of frontage on this paved street. The lot is currently undeveloped, covered with mostly low-growing vegetation, mainly grasses and blackberry vines. The unique feature ot the site is a swale that extends north-south through approximately the middle of the site. The ground east and west of the swale generally slopes steeply downward to the swale. The sides of the swale are a�proximately 10 to 50 feet tall on the property. We did not observe any indications of soil instability of the side slopes of the swale. The properties near the site are generally developed with residences. The adjacent lot to the east/southeast has a new residence on it. That property genera!;y slopes moderately toward the subject site. SUBSURFACE The subsurface conditions at the subject property were recently explored by excavating two test pits at the appreximate locations shown on the Site Exploration Plan, Plate 2. We also reviewed other soil explorations done on the northem side of the Belvedere Avenue for separate development. Our recent test pit program was based on the proposed construction, site access, the previous nearby explorations, and subs�rface conditions encountered during our recent explorations. GEOTECH CONS�:T�kTS. INC.