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� , � <br /> Helical Pier Extensions No. of Final Final 3' Total Cut Off Final Ultimate Allowable <br /> No. Size 5' 7' 10' <br /> Helix PSI (ft bs) L(ftjth �ft� L(ftjth C(k ps)y C(k ps)y <br /> 32 2 7/8 1 3 3000 4600 17 2.5 14.5 41.4 20.7 <br /> 33 2 7/8 1 3 3100 4900 17 1.7 15.3 44.1 22.1 <br /> 34 2 7/8 1 1 3 4000 7400 22 1.3 20.8 66.6 33.3 <br /> 35 2 7/8 1 2 3 3300 5500 32 1.6 30.4 49.5 24.8 <br /> 36 2 7/8 1 3 3200 5200 17 1.9 15.1 46.8 23.4 <br /> 37 2 7/8 1 1 3 3100 4900 22 2.3 19.8 44.1 22.1 <br /> 38 2 7/8 1 1 3 3100 4900 22 1.5 20.5 44.1 22.1 <br /> 39 2 7/8 1 1 3 3100 4900 22 1.7 20.3 44.1 22.1 <br /> 40 2 7/8 2 3 3200 5200 27 0.0 27.0 46.8 23.4 <br /> 41 2 7/8 2 3 3300 5500 27 0.0 27.0 49.5 24.8 <br /> 42 2 7/8 2 3 3300 5500 27 0.0 27.0 49.5 24.8 <br /> 43 2 7/8 2 3 3200 5200 27 0.0 27.0 46.8 23.4 <br /> 44 2 7/8 1 3 3400 5700 17 2.5 14.5 51.3 25.7 <br /> 45 RS HW 2 3 3400 5700 27 3.1 23.9 51.3 25.7 <br /> 46 RS HW 2 3 3800 6900 21 1.3 19.7 62.1 31.1 <br /> 47 RS HW 2 3 3800 6900 21 1.0 20.0 62.1 31.1 <br /> 1 1 1/2 1 3 2100 2100 12 0.0 12.0 21.0 10.5 <br /> 2 1 1/2 1 3 2200 2400 12 0.0 12.0 24.0 12.0 <br /> 3 1 1/2 1 3 2200 2400 12 0.0 12.0 24.0 12.0 <br /> 4 1 1/2 1 3 2200 2400 12 0.0 12.0 24.0 12.0 <br /> 5 1 1/2 1 3 2200 2400 12 0.0 12.0 24.0 12.0 <br /> 6 1 1/2 1 3 2200 2400 12 0.0 12.0 24.0 12.0 <br /> 7 1 1/2 1 3 2200 2400 12 0.0 12.0 24.0 12.0 <br /> 8 1 1/2 1 3 2200 2400 12 0.0 12.0 24.0 12.0 <br /> 9 1 1/2 1 3 2200 2400 12 0.0 12.0 24.0 12.0 <br /> 10 1 1/2 1 3 2200 2400 12 0.0 12.0 24.0 12.0 <br /> 11 1 1/2 1 3 2200 2400 10 0.0 10.0 24.0 12.0 <br /> 12 1 1/2 1 3 2200 2400 12 0.0 12.0 24.0 12.0 <br /> 13 11/2 1 3 2200 2400 12 0.0 12.0 24.0 12.0 <br /> 14 1 1/2 1 3 2200 2400 10 0.0 10.0 24.0 12.0 <br /> 15 1 1/2 1 3 2100 2100 10 0.0 10.0 21.0 10.5 <br /> 16 1 1/2 1 3 2100 2100 12 0.0 12.0 21.0 10.5 <br /> Summary: <br /> No. Size 5' 7' 10' Average Total Final <br /> Length(ft) Length(ft) Length(ft) <br /> 16 1 1/2 3 13 0 11.6 186.0 186.0 <br /> 44 2 7/8 19 0 64 23.7 1,043.0 976.3 <br /> 3 RS HW 0 4 2 23.0 69.0 63.6 <br /> 63 Total 22 17 66 20.6 1,298.0 1,225.9 <br />