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TABLE 1 <br /> SUMMARY OF LABORATORY TEST RESULTS <br /> 4st STREET BRIDGE <br /> SOUTHWEST ABUTMENT EVALUATION <br /> Direct Shear Strength <br /> Atterbarg Limits Grain-Size Distribution Peak Shear Strength Ultimate Shear Strength Swell(+)1 <br /> Consol(-)at <br /> 500 psf <br /> Water Dry Unit Gravel Sand Minus No. Clay Applied Tensile Unconfined <br /> Depth Content Weight Liquid Plastic Plasticity Sizes Sizes 200 Sieve Fines Cohesion Friction Angle Cohesion Friction Angle Pressure Strength Compressive <br /> Hole ft k Limit Limit Index °/ % Fines '/ % USCS s (degrees) s (degrees) % s Strength_ sl <br /> BR-1 1 0.5 1 55.7 27.9 16.4 GM <br /> BRA 10 13.9 102 52 27 25 0 22.9 77.1 CH 0.2 <br /> BRA 15 13.3 106.9 <br /> BRA 15 14 97 43 23.2 19.7 0 2.5 97.5 CL 89.3 47.9 553.0 34.8 <br /> BRA 15 11.9 106.8 <br /> BRA 41.0-42.0 8,850.0 <br /> BRA 42.0-42.2 NP 0 16.9 83.1 10.7 <br /> BRA 47.0-48.5 275.5 31.1 11,250.0 <br /> BRA 65.5-66.4 1.6 145.9 2,540.0 <br /> BRA 100.0-101.9 3,890.0 <br /> BR-2 5 2 112.3 NP 8.7 56.6 34.7 SM -2.7 <br /> BR-2 10 <br /> BR-2 30.2-32 10,860.0 <br /> BR-2 38.5-39.5 26.7 14.6 12.2 0 73.1 26.9 240.1 24.5 <br /> BR-2 45.7-47.2 1,670.0 <br /> BR-2 55.6-57.3 1.9 139.4 2,590.0 <br /> BR-2 69.8-71.4 12,580.0 <br /> BR-2 75.5-76.2 51.3 15.4 35.3 0 18.1 81.9 8.0 59.2 23.0 <br /> BR-3 5 17 32 14 18 23.5 40.1 36.3 SC <br /> BR-3 11.1-11.8 240 1,250.0 <br /> BR-3 24.0-25.0 690 1,050.0 <br /> BR-3 32.8-33.6 1 143.4 1 1 2,350.0 <br /> NOT <br /> 1. Laboratory testing conducted by Advanced Terra Testing,fnc. <br /> 2. Percent fines test result for BR-2 at 38.5-39.5 feel appears to be low likely due to difficulty breaking down shale rock fragments. <br /> 3. L/D<2.0 correction factor applied to Unconfined Compressive Strength for BR-3 at 11.1 to 11.8 feet depth. <br />