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AET #20-02044 - Page 10 <br /> <br />12 931.3 1 ~,6 930 <br />13 915.4 4~,4 911 <br />14 941.8 2 940 <br /> <br />Notes: * - Excavation depth based on assumption of a building construction delay after filling. <br /> If no construction delay is possible, excavation will have to extend to about 9'. <br /> <br /> · * - Excavation depth based on assumption of a building construction delay after filling. <br /> If no construction delay is possible, excavation will have to extend to about 14'. <br /> <br />Soil conditions can be expected to vary away from the soil boring locations. For this reason, <br />excavation depths will vary throughout the site. Deeper excavation may be needed in some areas, <br />especially near the wetlands. Due to the potential variation, the soils in the bottoms of the <br />excavations should be observed and evaluated by AET geotechnical personnel prior to new fill or <br />footing placement. <br /> <br />In areas where fill is required below foundations, the excavation should be oversized laterally at <br />the bottom so the new fill system can provide support for the lateral loads exerted. Based on the <br />conditions encountered, we recommend the excavation bottom include a 1:1 oversizing. That is, <br />for each vertical foot of fill required below the foundations, the excavation should be oversized <br />laterally beyond the edge of the footing a similar distance. <br /> <br /> Fill Placement and Compaction <br /> <br />After completion of the required excavation, fill required to attain building grade should be <br />uniformly compacted in thin lifts. We recommend the fill be compacted to a minimum of 95 % <br /> <br /> <br />