7725 LARIMER RD 2016-01-01 MF Import

Consuiting bert M. Pride, Inc. Engineer November 13, 1996 Mr. Ted Buttons City of Everett Planning and Development Department Everett. WA 98204 I�� S � C'J� l YVV✓1 ��GI 1 R:: Repor! on Gcotechnical Assesscaar.t Proposed Residential Site 7720 Larimer Road Everett, Washington RMP Project No. 96-183-01 Deaz Mr. Buttons, At the request of Mr. Gary Wright, an site inspection was made on November 16�' to evaluate the existing soil conditions on a graded pad for a modular house to be built at 7720 Larimer Road in Everett. It is understood tl�at tne foc:print of the completed modules will be 40 x 60 feet in plan area, and that each module will be supported on two steel beams extending in the long dimension. Pedestal footings on eight foot centers will be positioned on a concrete slab covering the entire building pad area. The building pad was created by excavating adjacent to Larimer Road, and placing fill on the easterly side of the pad azea. Maximum depth of fill is on the order of two feet, with the daylight line located on the easterly side of the graded pad. Fill soils consist of a mixhue of silts and fine sands, and contain some organics. Exposed native soils appeaz to be compact silty sands and silts with relatively high moisture content. Based on the results oi my site inspection and on discussions with Gary Wright, it is recommended that sup, ort for the most easterly module be provided by a continuous footing extending through the fii! and onto the native soils. These pazallel footings will be about eight feet apart, and �ti�ll extend be'.ow the concrete slab approximately 18 to 24 inches. Support Y'or the remaining two modules c:ui be provided by the concrete slab ihat will be poured over the existing graded pad. It is recommended that a 4 to 6 inch crushed gravel base be placed under die concrete slab after the soft, wet surface soils have been removed from tl�e pad surface. Each footing should be reinforced with two No. 4 bars, one at Uie top and bottom of the footing. In addition, the easterly 12 feet of the concrete slab should be reinforced with No. d bars at 34 inch cen[ers, 10428 N.E. 52nd Str«t K'v:.land. WA 98033 PhonclFez (206) 822 - 9532