3121 8TH ST AB 2016-01-01 MF Import

.lunc l. 2008 Uuplex 13uilding L&A Job No. SA055 Pagc 9 1'he al,ovc rccommcndcd cut and tiil slopcs arc undcr thc assumption that groundwatcr sccpagc would not be encauntered during construction. [f groundwater seepage is cncountcred, the construction should be immediately haltcd and the slope stability re-evalaated. The slopes may have to be flaltened and other measures taken to stabilize the slopes. Surlace runoCf should not be allowed to Ilow uncontrolled ovcr the top of cut or fill slopes. Permanent cut slopes or fill embankments should Ue vegetated as soon as possible for erosion controf and long-term stability, and should be covered with clear plastic shcets, as rcyuired, to protect them from stomiwatcr until thc vcgetation is fully establishcd. STRUCTURAL 1� ll,L Structural fill is thc lill that supports structur�l or traf3ic load. Strucwral 1ill should consist of cican granular soils free of organics and debris and with particles no larger than four inchcs. Structural fill should have a moisture content within or.c percent oC its optimum moisturc content at the time of placement. The optimum moisture content is the water content in the soils that enable the soils to be compacted to the highest dry density for a given compaction effort. The onsite clean soils may be used 1'or structural fill if thcy meet the above requirements. Imported material to be used as structural fill, should be clean, frec-draining, granular soils containing no more than 5 percent by weight finer than the No. 200 sieve based on the fraction of the matcrial passing No. 4 sie��c, and shoidd havc individual partides not larger than (our inches. Thc ground over which structural fill is to be placed should be prepared in accordance with recommendations in the SITG PRGPARATION AND GGNERAL GRADING and GXCAVAI'ION AND PILL SLOI'ES sections of this report. Structural fill should be placed in litts no more than 10 inches thick in iis loose state, with each liCt compacted to a minimum percentage ofthe maximum dry density determined by ASTM D1557 (Modified Proctor Method) as lollows: LIU & ASSOCIATES, INC.