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' Subsurface E•olorarion nnd <br /> ?OZ6 Grnnd.l renue Geoiedmica!Enginecring Report <br /> IErercit, li�nshinqmn Design Recummendarions <br /> III. DESIGN hECONiMENIaATIONS <br /> 1 , <br /> 6.0 IN'CRODUCTION <br /> IOur exploration indicates that from a ecotechnical standpoint, the site is suitable for the <br /> 1 proposed condominium project. Suitable foundation bearing soils �vere encountered near <br /> proposed design tloor elevati�m within the eastern portion of the building. However, suitable <br /> bearing soils were encountered at a dcpth of 1� to 20 feet ���ichin the weste,�: end of the <br /> � builaine. We anticipate tha[ conventional shallow spread footings could be used within the <br /> eastern half of the building and a deeper pile foundation utilized for the western portion of the <br /> building. A top of slope building setback of 8 feet should be maintained from the top of the <br /> t west-facine steep slape. <br /> I D�� to existing topography, desired finish floor elevatiun, and proximiry to property line, and <br /> I rights of way, temporary shorine of exca�:ations will be necessary. AESI should revie�v <br /> completed desien plans su that we m:,y provide shoring recommendations specific to the site. <br /> � 7.0 SITE PP.EPARATION <br /> ISitc: preparation of the planned building and driveway areas should include removai of :�ii <br /> existing svucmres, utilities, debris, and any oUier deleterious :naterial. Areas where loose <br /> surficial soils esist due to grubbing operations should be considered as fill to the depth of <br /> Idismrbance and treated as subsequently recammenQed for strucmral fill placement. <br /> 1 Por strucWral locations (i.e., foundation and slab-on-grade tloors), excavation should extend ro <br /> i <br /> a depUi necessary to exposc medium de+isc to dense, natural soils. Suitable bearing soi:s <br /> sltould be encountcred �ti'ithin the eastern half of the building follo�ving excavation to desired <br /> � g,rades. Withict th� slab-on-erade garage floor area, tl�e esposed soil subgrade should be <br /> cu�upacted to a minimum of 93 percent of ASTM:D 1577. <br /> � Due to the i�- to 20-foot depdi to bearine sediments and Aie close proximity of the steep slope, <br /> �ve recommend the use of a deep pile foundation for the western end of' the building. Site <br /> � preparation for a pile foundation should consist of escavating to desired foundation floor <br /> grades. <br /> � Ali e�cavated material from the fomidation exca��ations shouid be remo��ed from the site and <br /> not placed o��er thc slope towards the ��est. <br /> I <br /> � huie l9, 1000 ASSOCfATED EARTN SCIE�\CES, lNC <br /> Page 7 <br /> ( 1.\S.da-A"FiM)3/YGl-fD-0��Li'6�1KI-lC7h; <br /> 1 <br />