Ohio River Lease of Dredge and Plant

The Government is seeking qualified, experienced sources capable of performing construction services consisting of dredging and disposal of an estimated 1,200,000 cubic yards per year of sediment material from the federal navigation channels on the Ohio River (RM 0 - 981.0) and the pooled areas of tributaries; and the Upper Mississippi River RM 0.0 - 185.0. The sediments consist of primarily medium to coarse grained sands with a d50 of 0.03 inch. Dredging will occur in depths up to 33 feet (10 meters) below the water surface and in currents up to 5 knots. The dredge shall meet the following criteria: Maximum draft of 7.5 ft; Minimum 20 inches inside diameter pump discharge; Minimum of 1700 horsepower on the main pump shaft; minimum 300 horsepower on the cutterhead shaft which produces a minimum output through a pontoon pipeline of 200 feet to 3200 feet in length and a lift up to 16.5 feet as indicated in the table below; Dredge up to and including 24 inch inside diameter pump discharge, which meet the minimum requirements listed in the following table, will be considered. Minimum dredge outputs are based upon bid production conditions and do not consider bank height and dredge efficiency reduction factors. The dredge shall be capable of dredging efficiently a 200 foot to 360 foot wide cut to a depth of 33 feet. While making a 300 foot wide cut, the dredge shall be of sufficient length that the swing angle to either side of the centerline of the cut shall not exceed 55 degrees. The dredge shall have a hauling engine with minimum cable speed of 70 ft/min in currents up to 5 knots; at least two spare interchangeable pump impellers and cutterheads. Size of Dredge pump Discharge Inside Diameter Minimum Continuous Power Connected Dredge Pump Minimum Continuous Power Connected Cuttershaft Minimum Dredge Output 20 in (508 mm) 1700 hp (1268 kW) 300 hp (224 kW) 1084 CY/hr 22 in (559 mm) 1800 hp (1342 kW) 330 hp (246 kW) 1172 CY/hr 24 in (610 mm) 1800 hp (1342 kW) 360 hp (268 kW) 1229 CY/hr The contractor shall be required to supply but not be limited to, the following equipment, fleet, and personnel in association with contract dredging contained herein, spill barge, fuel flats, auxiliary floating discharge pipe, derricks, anchor "skidder Barges, work flats, 3200 ft of pontoon mounted or floating discharge pipeline, dredge tender vessels equipped with hydraulic cranes, inspection/survey vessel with associated survey equipment, computer(s) loaded with hydrographic database and dredging software, Differential Global Positioning System, Gyrocompass, Communications, landline disposal pipe, land pipe placing equipment, baffle plate, lighting, shallow draft pipeline equipment, supervisory and crew personnel for efficient operation, tankerman, etc., and any other required equipment necessary to efficiently dredge, dispose and verify sediment removal of sediments from the navigation channel as specified. All vessels and equipment must be certified by the U.S. Coast Guard. b. Projects similar in size to this project include: Dredging and disposal of an estimated 1,200,000 cubic yards per year of sediment material from the federal navigation channels. c. Projects similar in dollar value to this project include: $4-7 million per year. Based on the definitions above, for each project submitted, include: a. Current percentage of construction complete and the date when it was or will be completed. b. Scope of the project. c. Size of the project. d. Dollar value of the project. e. The portion and percentage of the project that was self preformed.