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North Coast Construction <br />October 11, 1979 <br />Page Two <br />Test Number <br />Location <br />Date (1979) <br />27 <br />Parking <br />10/2 <br />28 <br />Parking <br />10/2 <br />29 <br />Pay Less <br />10/3 <br />30 <br />Shops <br />10/3 <br />31 <br />Parking <br />10/3 <br />32 <br />Parking <br />10/3 <br />33 <br />Parking <br />10/4 <br />A <br />Pay Less <br />10/4 <br />35 <br />Pay Less <br />10/4 <br />36 <br />Pay Less <br />10/4 <br />37 <br />Parking <br />10/5 <br />38 <br />Pay Less <br />10/9 <br />39 <br />Pay Less <br />10/9 <br />40 <br />Shops <br />10/9 <br />41 <br />Shops <br />10/9 <br />% Compaction % moisture <br />91 <br />9.9 <br />99 <br />9.6 <br />98 <br />6.4 <br />97 <br />6.4 <br />86 <br />12.7 <br />84 <br />14.3 <br />94 <br />8.7 <br />97 <br />6.1 <br />100 <br />7.8 <br />98 <br />7.0 <br />94 (retest of <br />13.0 <br />tests 31 & <br />32) <br />98 <br />6.1 <br />97 <br />7.5 <br />100 <br />7.0 <br />96 <br />7.2 <br />* Indicates final tests taken in the Frederick & Nelson Pad <br />Tests 31 and 32 taken in the parking area failed. The area was reworked and <br />retested. Test Number 37 is the retest. <br />The soils used for embankment construction consist of gravelly, silty sand <br />import with a maximum dry density of 133 pcf and an optimum moisture of 7 percent. <br />The parking lot was constructed with on -site soils which had maximum dry densities: <br />brown, silty, fine to medium sand/117 pcf @ 11%; gray -broom, silty, fine to medium <br />sand/118 pcf @ 12%. <br />It is our understanding that due to asphalt shortages, paving on the project <br />may be delayed. Once the fall rains begin, equipment traffic should be limited on <br />both the completed building pads and parking areas. The movement of construction <br />equipment (especially trucks), across a a:et subgrade can rapidly turn dense soil <br />