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16 <br /> Section 8• Conclusions and Recommendations <br /> Table 8-2.Opinion of Probable Construction Cost—Low Wastewater Flow Scenario <br /> Associated System Description Unit Quantity Cost <br /> Gravity Sewer-8-inch DIP Lf 12,123 $620,8001 <br /> Jack&Bore Lf 1202 $60,000 <br /> Eno EDD Gravity System 1 i <br /> Gravity Sewer-12-inch DIP Lf 368 $25,000 <br /> Gravity Sewer Manhole3 Ea 45 $270,000 <br /> Pump Station4 MGD 0.7 $486,000 <br /> 8-inch f=orce Main Lf 7,000 $315,000 <br /> 8-inch Jack&Bore Lf 1605 $80,000 <br /> Eno EDD Conveyance System to 12-inch Gravity Sewer Lf 11,300 $757,1006 <br /> Durham Sewer System 12-inch Jack&Bore Lf 100 $65,000 <br /> Gravity Sewer Manhole Ea 38 $228,000 <br /> Traffic Control? Lf 8,000 $180,000 <br /> Pavejnent Replacement Sy 1,000 $42,000 <br /> Subtotal $3,129,000 <br /> x <br /> 5%Mobilization $160,000 <br /> Subtotal $3,29Q,000 I <br /> • I <br /> 10%Contractor OH&P $329,Q00 <br /> Subtotal $3,62Q,000 <br /> 25%Contingency $910,Q00 <br /> Subtotal $4,53Q,000 <br /> i <br /> 20%Engineering,Permitting,and Administration $910,000 f <br /> TOTAL $5,44Q,000 <br /> Notes: <br /> 1) Cost reflects various depths of cover. Not shown in table for clarity. <br /> 2) Jack&Bore costs reflect two(2)60-ft bores. See Note 10. <br /> 3) Gravity sewer manhole spacing of 300 feet. <br /> 4) Pump station and associated force main sized for Year 2045. <br /> 1 <br /> 5) Jack&Bore costs reflect one(1)100-ft bore and one(1)60 ft bore. See Note 10. <br /> 6) Cost assumes 10-feet of cover. j <br /> 7) Traffic control required during installation of force main along Hwy 70. f <br /> 8) Eno EDD gravity sewer system was sized based on High flow scenario with a peaking factor of 2.5 <br /> 9) Cost does not reflect pump replacement by 2035. <br /> 10) Jack&Bores were assumed for: <br /> r 60-ft bore under Hwy 70(Eno EDD Gravity System) <br /> • 60-ft bore understream crossing near pump station(Eno EDD Gravity System•&Conveyance System) <br /> 100-ft bore under SR 751 along force main route(Eno EDD Conveyance System) <br /> • 100-ft bore under railroad along force main rpute(Eno EDD Conveyance System) <br /> miitit 8-3 <br />