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Nutria Street <br />SB-21 <br />0+45 <br />4 <br />2 <br />SP <br />SB-22 <br />3+00 <br />3 <br />3 <br />SP <br />SB-23 <br />5+70 <br />4 <br />4 <br />SP <br />168th Avenue <br />SB-24 <br />0+50 <br />6 <br />4 <br />SP <br />SB-25 <br />3+75 <br />31/2 <br />31/2 <br />SP <br />SB-26 <br />6+00 <br />31/2 <br />31/2 <br />SP <br />SB-27 <br />8+50 <br />41/2 <br />31/2 <br />SP <br />SB-28 <br />11+30 <br />41/2 <br />3 1/2 <br />SP <br />Rabbit Street <br />SB-29 <br />3+25 <br />3 <br />3 <br />SP <br />169th Avenue <br />SB-30 <br />3 + 50 <br />31/2 <br />3 <br />SP <br />SB-31 <br />0 + 25 <br />3 3/4 <br />3 <br />SP <br />SB = Soil Boring SP = Poorly Graded Sand SP-SM = Poorly Graded Sand with Silt <br />Fill <br />Below the pavement section soil borings SB-06, SB-09, SB-11, SB-12, and SB-15 encountered <br />previously placed Fill that extended to depths ranging from 4 1/2 to 9 1/2 feet below the ground <br />surface. <br />The Fill consisted of poorly graded sand, poorly graded sand with silt, silty sand and silty clayey <br />sand that was brown, dark brown or black in color. <br />N-Values in the previously placed Fill ranged from 10 to 29 bpf. These values indicate the Fill had <br />a loose to medium dense relative density. <br />Buried Topsoil <br />Soil boring SB-09 encountered an apparent buried topsoil layer at about 91/2 feet below the ground <br />surface. The apparent buried topsoil was composed of silty sand. Soil boring SB-12 encountered <br />relatively thin layers of black silty sand or silty clayey sand at about 2 feet and 7 feet below the <br />pavement surface which appears to be layer(s) of buried topsoil. Buried topsoil or other organic <br />soil were not encountered in the remaining borings. <br />Native Alluvium <br />Beneath the pavement section or Fill the soil borings encountered alluvial deposits that extended <br />to the termination depths of the borings. The native alluvial deposits consisted predominantly of; <br />poorly graded sand with silt, poorly graded sand and silty sand corresponding the ASTM <br />Classifications SP-SM, SP and SM, respectively. Lesser amounts of clayey sand (SC) were <br />encountered in soil borings SB-15 and SB-20. The clayey sand at soil boring SB-15 was encountered <br />at about 91/2 feet below the ground surface and extended to the termination depth of the boring. <br />The clayey sand at boring SB-20 was about 1/2 foot thick and was noted at about 7 feet below the <br />ground surface. <br />4 <br />