4701 W GLENHAVEN DR 2016-01-01 MF Import

a October 15. 19� Pro�ect No. 8010-1 ai-w� xomee �ee a 5. All downapoute, catch baeine� or other devicea ueed to collect runoff ehould be directed into the local drainage by tight line. 6. Under no conditione ehould etructural footinga be placed to bear upon the exieting fill eoils. �, The geotechnical conaultant should inspect the ez- cavation areas for confirmation of the desired bearing soils prior to placement oY footing concrete. In the event that the depth to bearing soils should be ex- cessive� the use of a trench work system filled with leatt mix concrete may prove to be the moet feasible and economic a� proach to foundation support. The trench should be at least equal to the width of the footing and ahould be brought to an elevation 18 inches below finished ad�acent grade. The foot- inge would then be formed on the lean mix body. The wall separating the living area from the upper garage area may be influenced by horizontal soil pressures. For thia reason we suggest that the wall be nominally rei:.�:.�ced so as to resist such forces. For design purpoaes an equiv- alent fluid presaure acting upon the basement wall may be asaumed at 30 p.c.f. for a yielding wall configuration. This value presumee the uae of an effective drain system along the back aide of the wall, and does not take ir.to account hydro- static pressures. We auggest the use of a free draining sand backfill along the back side of the wall. The sand backfill should extend to within two (2) £eet of the top of the wall, and have a thicknesa of at least 12 inchea. The sand mater- ial should be underlain by a perforated tile along the base of the wall. The tile ehould be set such that a poaitive