1934 GRAND AVE 2016-01-01 MF Import

:�+ � • Carl Pearson JN 95068 February 20, 1995 Page 2 adjoining southern condominium building. Currently undeveloped, the site is covared with tall grass and weeds. The ea�tem approximately one-half of the property siopes gently to moderately down toward the west from the sidewalk. The steepest area on this portion of the site occurs where flll was placed near the northeastern corner to construct ihe new driveN•ay for the adjacent northem property (1930 Grand Avenue). The ground su�tace on tha westem half of the site drops steeply to the Burlington Norttiern Rediroed tracks that are located immediately west of the lot. This steep slope has an inclination of approximately BO percent and an estimated height of 70 feet. Vegetation on the westem slope consists primarily of brush and blackberry vines, but some large decidu- ous trees grow on the lower hslt of the siope. This steep bank continues north and south of the sfte and appears to be relatively stable. In the general vicinity, the only indication of recent InstebiUty on the westem slope was a 2- to 3-foot-deep slough observed below the city park located several blocks north of site. No seepage was noted exiting the slope in the vicinity of the property. A condominfum building thst has a parking garage less than 5 teet from the crest of the steep westem bank is south of the subject site. No fndications of toundatfon settlement or cracking were observed along the western side of this building during our site visit. A resi- dence that was recently remodeled, with a garage and ifving space added south and west of the original structure, is to the north. We conducted the geotechnical engfneering study for this remodel, and the portions of the structure with(n about 15 feet of the steep slope are supported on drilled concrete piers. The remainder of the new construction is supported on conventlonal footings,wfth the basement foundations located on the noRhern property line. Anti�iRated Sukaur}a�e�Qriditiona Our understanding oi the subsurface conditions at the site is based on the observations made du�ing our recent site visit and on our experience with the remodel project on the property(mmedlately to the north. During our geotechnical engineering study for this adjacent lot, we excavated one test pit to a depth of 13 feet at the crest of the steep slope near the northern boundary of the subject site. This test pit found several feet of fill and topsofl overlying loose, native sends that becsme dense at a depth of about 8 feet in the excavation. Based on our field observations, the steep, westem slope is composed of these dense sands, which are designated as glacially consolidated, advance outwash soils on the Geologic Map of Everett (Minard 1985). The upper several feet ot these sands are slowly being loosened by weathering, cro'n�cu coNsui:rnrn:;,iNc.