Appendix C3. Cost Engineering

Transcription

1 Appendix C3 Cost Engineering November 2016

2 Costs generated in this appendix include the likely initial project cost to place dredged material from the source area (Lower Reach E Miah Maull and Brandywine Ranges) on the 8 placement locations (Pickering Beach, Kitts Hummock, Bowers Beach, South Bowers Beach, Big Stone Beach, Slaughter Beach, Prime Hook Beach and Lewes Beach). In addition, the Federal Standard cost was calculated for different timeframes in the 50-year project lifecycle. For the first 10 years of the proposed project life, the Federal Standard cost was based on disposal of dredged material at Buoy 10 via a hopper dredge and bottom dumping at Buoy 10. For years 11 through 50, the Federal Standard calculation was based on the placement of dredged material at the Artificial Island CDF due to capacity limitations at Buoy Cost to place dredged material (from Lower Reach E Miah Maull and Brandywine Ranges) at the 8 placement locations. Based on the with-project assumption that project implementation would consist of a continuous dredging operation with one primary mobilization, the dredge mobilization costs and all associated equipment required for each placement site were used to calculate the initial construction costs. In addition, continuous incremental preparatory costs to nourish the sites in the system were added into the initial construction costs. Initial fill costs are based on the assumption that one generic medium size hopper dredge to be used for placement of beach fill. Approximately a total of 930,000 cubic yards of available material for beach fill from Lower Reach E Miah Maull and Brandywine Ranges (Station thru Station ) was assumed to be available as a borrow source. The average travel distance was determined for each beach mooring barge location for dredge to travel. The average pumping distance for the initial beach fill was determined from mooring barge to landing on beach and the average beach length. Quantities were provided by the PDT. Utilizing Corps of Engineers Dredging Estimating Program (CEDEP), estimated cost were incorporated into MCACES, 2 nd Generation (MII), then summarized in tables. Beach Travel Pipe Shore Volume (Miles) (Feet) (Feet) (Cubic Yards) Pickering Beach ,661 3,168 63,771 Kitts Hummock ,125 5,808 91,723 Bowers Beach ,667 3,696 53,797 South Bowers Beach ,395 3,696 52,935 Big Stone Beach ,207 1,690 42,278 Slaughter Beach ,980 14, ,206 Prime Hook Beach ,985 7, ,341 Lewes Beach ,151 4, ,000

3 2. Cost to place dredged material in accordance with the Federal Standard at Buoy 10, via bottom dumping with the McFarland Costs are based on the assumption that one generic medium size hopper dredge to be used for excavating material from Lower Reach E Miah Maull and Brandywine Ranges (Station thru Station ) and deposited at Buoy 10. The average travel distance 12 miles was determined. Utilizing Corps of Engineers Dredging Estimating Program (CEDEP), estimated cost were incorporated into MCACES, 2 nd Generation (MII), then summarized in tables. 3. Cost to place dredged material in accordance with the Federal Standard at the Artificial Island CDF Costs are based on the assumption that one generic medium size hopper dredge to be used for excavating material from Lower Reach E Miah Maull and Brandywine Ranges (Station thru Station ) and deposited at the Artificial Island CDF. The average travel distance 40 miles was determined. Utilizing Corps of Engineers Dredging Estimating Program (CEDEP), estimated cost were incorporated into MCACES, 2 nd Generation (MII), then summarized in tables.

4 DREDGED MATERIAL UTILIZATION - Initial Construction ROUGH ORDER ESTIMATE FOR BEACHFILL MATERIAL FROM Delaware River Reach E Number Product Description Quantity UOM Unit Price Estimated Contingency Estimated Amount 30% Amount 01 LANDS AND DAMAGES 1 JOB LS $4,539,825 $1,361,948 $5,901,773 Total 02 RELOCATIONS 1 JOB LS $0 $0 $0 17 BEACH REPLENISHMENT 1 JOB LS $45,398,253 $13,619, Mobilization, Demobilization, and Preparatory Work 1 JOB LS $11,465,574 $3,439,672 $14,905, Site Work Dredging and Beachfill - Pickering Beach 63,771 CY $40.97 $2,612,698 $783,809 $3,396, Dredging and Beachfill - Kitts Hummock Beach 158,321 CY $38.67 $6,122,273 $1,836,682 $7,958, Dredging and Beachfill - Bowers Beach 117,149 CY $36.95 $4,328,656 $1,298,597 $5,627, Dredging and Beachfill - South Bowers Beach 52,935 CY $39.24 $2,077,169 $623,151 $2,700, Dredging and Beachfill - Big Stone Beach 42,278 CY $39.96 $1,689,429 $506,829 $2,196, Dredging and Beachfill - Slaughter Beach 246,564 CY $37.29 $9,194,372 $2,758,311 $11,952, Dredging and Beachfill - Prime Hook Beach 114,341 CY $35.08 $4,011,082 $1,203,325 $5,214, Dredging and Beachfill - Lewes Beach 100,000 CY $38.97 $3,897,000 $1,169,100 $5,066, PLANNING, ENGINEERING, AND DESIGN 1 JOB LS $2,042,921 $612, $2,655, CONSTRUCTION MANAGEMENT (S&I) 1 JOB LS $2,161,400 $1,634,337 $3,795,737 TOTAL ESTIMATED AMOUNT = $71,371,035

5 DREDGED MATERIAL UTILIZATION - Initial Construction ROUGH ORDER ESTIMATE FOR Slaugher 01 Beach REMOVAL AND DISPOSAL OF MATERIAL AT BOUY 10 Number Product Description Quantity UOM Unit Price Estimated Contingency Estimated Amount 30% Amount 01 LANDS AND DAMAGES 1 JOB LS $0 $0 $0 Total 02 RELOCATIONS 1 JOB LS $0 $0 $0 09 CHANNELS AND CANALS 1 JOB LS $3,514,424 $1,054, Associated General Items Site Work Mobilization, Demobilization, and Preparatory Work 1 JOB LS $1,150,036 $345,011 $1,495, Dredging and Disposal 172,206 CY $13.73 $2,364,388 $709,317 $3,073, PLANNING, ENGINEERING, AND DESIGN 1 JOB LS $340,674 $102, $442, CONSTRUCTION MANAGEMENT (S&I) 1 JOB LS $341,980 $102,594 $444,574 TOTAL ESTIMATED AMOUNT = $5,456,202

6 DREDGED MATERIAL UTILIZATION - Initial Construction ROUGH ORDER ESTIMATE REMOVAL AND DISPOSAL OF MATERIAL AT Artificial Island Number Product Description Quantity UOM Unit Price Estimated Contingency Estimated Amount 30% Amount 01 LANDS AND DAMAGES 1 JOB LS $0 $0 $0 Total 02 RELOCATIONS 1 JOB LS $0 $0 $0 09 CHANNELS AND CANALS 1 JOB LS $27,611,884 $8,283, Associated General Items Site Work Mobilization, Demobilization, and Preparatory Work 1 JOB LS $1,579,884 $473,965 $2,053, Dredging and Disposal 800,000 CY $32.54 $26,032,000 $7,809,600 $33,841, PLANNING, ENGINEERING, AND DESIGN 1 JOB LS $1,104,475 $331, $1,435, CONSTRUCTION MANAGEMENT (S&I) 1 JOB LS $1,844,390 $553,317 $2,397,707 TOTAL ESTIMATED AMOUNT = $39,728,974