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:� <br />��x <br />C", H <br />ayx�n <br />H Z� <br />�e c� <br />H� <br />� H �+tl <br />fn H <br />�"�p <br />H C7 <br />H�O <br />�V � <br />9H� <br />y <br />t hi H <br />gy <br />�d� <br />��y <br />H O G� <br />� <br />;1 <br />August 15, 1991 <br />Mr. Bob Norlinq <br />,� <br />G-0126 <br />Page 7 <br />, <br />construction of the garaqe walls. The south and north garage walls <br />y should be constructed before any additional cut for the west wall <br />is made. After the south and north walls are completed, additional <br />excavation for the west wall should proceed from the ends toward <br />�* the center. After excavating one segment at one end, the wall for <br />this segment should be completed with the concrete gaining <br />sufficient strength before the excavation is alternated to the <br />�� other end. The west wall should proceed in this sequence until it <br />is completed. <br />Y Alternatively, an excavation retention system can be used to shore <br />the cut and allow continuous construction of the garage walls. <br />� This is discussed in the Soldier Pile Shorina Wall section below. <br />_ - !R <br />1 "' <br />� 1 �. <br />Foundation 8yatam <br />Based on our findinqs of the site soil conditions, it is our <br />opinion that a conventional footing system can be used for <br />supporting the proposed garage. The footings should be placed on <br />the very dense, reddish brown silty, gravelly sand or the very <br />dense, cemented, gray silty sand soil unit. our recommended design <br />criteria for the footing system are as follows: <br />• Allowable bearing pressure, including all dead and live loads <br />= 6,000 psf <br />• Minimum depth to bottom of footing below exterior garde <br />= 18 inches <br />• Minimum width of wall footings = 18 inches <br />• Mit�imum lateral dimension of column footings = 24 inches <br />Geo Coaeultanta Inc. <br />n <br />