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City of Roslyn <br />Transmission Main Replacement West of River Crossing <br />Item Quantity Unit Unit Price Amount <br />Mobilization and Demolition 1 LS $ 68,810.00 $ 68,810.00 <br />Trench Excavation Safety System 1 LS $ 16,500.00 $ 16,500.00 <br />Erosion Control 1 LS $ 16,500.00 $ 16,500.00 <br />Utility Easement Acquisition 1 LS $ 20,000.00 $ 20,000.00 <br />12-inch 01 Water Pipe, Including Fittings 5600 LF $ 90.00 $ 504,000.00 <br />12-inch Butterfly Valves 10 EA $ 2,500.00 $ 25,000.00 <br />Bank Run Gravel for Trench Backfill 3200 CY $ 20 .00 $ 64,000.00 <br />Crushed Surfacing Top Course 490 TN $ 20.00 $ 9,800.00 <br />Seeding, Fertilizing, and Mulching 3750 SY $ 1.00 $ 3,750.00 <br />Connect to EXisting 4 EA $ 3,000.00 $ 12,000.00 <br />Minor Changes 1 CALC $ 16,500.00 $ 16,500.00 <br />Construction Sub-total $ 756,860.00 <br />Tax (8%) $ 60,548.80 <br />Contingency (20%) $ 163,481.76 <br />Construction Total $ 980,890.56 <br />Engineering and Administrative Costs (25%) $ 245,222.64 <br />Total Project Cost $ 1,227,000.00 <br />Note: Items, quantities, and costs have been taken from the City of Roslyn's Water System Plan, dated June 2014. <br />The total project cost estimated above reflects the combined costs of Transmission Improvement Projects T-2 & T-3 <br />as listed in the Water System Plan.