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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />ALTERNATIVE I-D <br />REINFORCED CONCRETE BOX CULVERTS <br />7 ft. X 7 ft. <br /> <br />Alternative I-D uses 12 - 7ft. x 7 ft. concrete box culverts <br />(see Figure 9) to bring the water surface elevation of the <br />100-ycar flood event into the tributaries natural challnel. <br />Alternative I-D incorpor'ates two railroad tracks in the <br />crossing. <br /> <br />",. <br />~- <br /> <br />'. <br /> <br /> <br />..' <br /> <br />.:::- <br /> <br />, <br /> <br />84 <br /> <br />FIGURE 9 <br /> <br />Cost Estimate <br /> <br />In researching the costs associated with Alternative I-D we <br />contacted Carder Concrete. Littleton. Colorado. Carder <br />Concrete estimated E-80-RR. railroad loading design. 7 ft. x 7 <br />ft. concrete box culverts delivered to jOb site at limon would <br />be $261.00 per linear foot. <br /> <br />To determine the labor involved in excavating. placing. and <br />backfilling the concrete culverts we contacted Binder <br />Construction. Denver. Colorado. Binder Construction stated <br />that they have experience in placing pipe of equal size and <br />usually bid such a jOb at about $ 125.00 per linear ft. <br /> <br />Materials: <br /> <br />Twelve rows of Box Culverts x 55 ft. length <br />12 x 55 ft. ~ 660 L.F. @ $261.00 ~ $ 172.260.00 <br /> <br />Labor: <br /> <br />660 L.F x $125.00 L.F. <br /> <br />~ $ 82.500.00 <br /> <br />Enqineerinq: <br /> <br />Engineering design. survey. and inspection @ 10%= $ 25.475.00 <br /> <br />Total Cost Estimate Alternative I-D <br /> <br />~ $280.235.00 <br /> <br />3820E <br /> <br />-12- <br />