1001 N BROADWAY Geotech Report 2018-01-02 MF Import

�."7i5T�#��3�:i :aT':: J-736 Page 13 fines), well Araded sand and gravel, compacted to 95 percent of Modified Proctar maximum dry density (ASTM D1557-70) to provide a capillary break. Within any building area underlain by compacted SILTS and SILT structural fill, it may be necessary to place a granular material over the floor'early in construction to provide a worki.ng surface. Traffic across these areas dur- ing construction would probably contaminate these granular soils, Therefore, we feel the above recommended 4-inch cap- illary break would also be required prior to placing the slabs, ParkinR and Paved Areas Designated parking areas on the site snould be stripped of loose surficial and organic dPnosii-s, and the exposed surface should be compacted to 92 percent of the Modified Proctor maximurz dry density. Structural fill as required,should be placed as pre- viously reco�nended and also compacted to 92 percent, General recou�endatians concerning pavement and subgrade thicknesses can be made based on local pra�tise and our experience with soils of a similar nature as those on the site. In our opinion, a 4 to 6 inch thick crushed rock base coarse compacted to 92 percent of the Modified Proctor meiximum dry density and a 2 inch rhick asphaltic concretP wearing surface would provide a suitable pavement section. In heavy traffqc areas, we feel that the base course or asphdlt paving thickness should be increased about 2 inche.s or 1 inch, respectively. Should a more detailed analysis and design reco�endation Ue required, California Bearing Ration tests could be conducted �n site soils, by our firm to provide design parameters.