Cutter or Hydraulic dredges are floating platforms equipped with a rotating cutter that excavates the sea floor, feeding the loosened material into a pipe and pump system that transports the material and water slurry up to typical distances of five miles. Transport distances can be extended by the addition of Booster pumps in the pipeline route.
This method is most suited where the disposal location is within an economic direct pumping distance from the dredging location, typically no more than six miles. These dredges can pump a slurry of all types of material: mud, sand, clay and rock. The ability to dredge stiff or hard material is dependant on the size and weight of the dredging equipment and the installed power of the cutter, the ability to pump heavy material is dependant upon the installed power and size of the pumping systems.
| TEXAS |
| Dimensions |
| | Length: | 305 ft (93.0 m) |
| | Breadth: | 66 ft (20.1 m) |
| | Depth: | 15 ft (4.6 m) |
| | Draft: | 11 ft (3.4 m) |
| | Overall Length: | 355 ft (108.2 m) |
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| Operating Parameters |
| | Dig Depth Range: | 15 to 94 ft (4.6 to 28.7 m) |
| | Suction Diameter: | 34 in (864 mm) |
| | Discharge Diameter: | 30 in (762 mm) |
| | Ladder Weight: | 670 tons (607,814 kg) |
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| Machinery & Power |
| | Cutter Power: | 4,000 hp (2,983 kW) |
| | Total Installed Power: | 20,430 hp (15,233 kW) |
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| OHIO |
| Dimensions |
| | Length: | 275 ft (83.8 m) |
| | Breadth: | 72 ft (21.9 m) |
| | Depth: | 16 ft (4.9 m) |
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| Operating Parameters |
| | Dredging Depth: | 11.5-79 ft (3.5-24.0 m) |
| | Suction Diameter: | 34 in (864 mm) |
| | Discharge Diameter: | 30 in (762 mm) |
| | Ladder Weight: | 807 tons (732,098 kg) |
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| Machinery & Power |
| | Cutter Power: | 4,500 hp (3,355 kW) |
| | Total Installed Power: | 15,670 hp (11,690 kW) |
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| CAROLINA |
| Dimensions |
| | Length: | 263 ft (80.2 m) |
| | Breadth: | 65 ft (19.8 m) |
| | Depth: | 15 ft (4.6 m) |
| | Draft: | 11 ft (3.4 m) |
| | Overall Length: | 341 ft (103.9 m) |
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| Operating Parameters |
| | Dig Depth Range: | 14 to 84 ft (4.3 to 25.6 m) |
| | Suction Diameter: | 34 in (864 mm) |
| | Discharge Diameter: | 30 in (762 mm) |
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| Machinery & Power |
| | Cutter Power: | 3,000 hp (2,237 kW) |
| | Total Installed Power: | 15,620 hp (11,646 kW) |
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| FLORIDA |
| Dimensions |
| | Length: | 190 ft (57.9 m) |
| | Breadth: | 60 ft (18.3 m) |
| | Depth: | 14 ft (4.3 m) |
| | Overall Length: | 524 ft (159.7 m) |
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| Operating Parameters |
| | Dig Depth Range: | 25 to 98 ft (7.6 to 29.878 m) |
| | Suction Diameter: | 37 in (940 mm) |
| | Discharge Diameter: | 34.5 in (876.3 mm) |
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| Machinery & Power |
| | Cutter Power: | 3,000 hp (2,237 kW) |
| | Main Pump Power: | 10,000 hp (7,457 kW) |
| | Total Installed Power: | 25,400 hp (18,938 kW) |
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| CALIFORNIA |
| Dimensions |
| | Length: | 208 ft (63.4 m) |
| | Breadth: | 50 ft (15.2 m) |
| | Depth: | 15 ft (4.6 m) |
| | Overall Length: | 291 ft (88.7 m) |
| | Draft: | 10.5 ft (3.2 m) |
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| Operating Parameters |
| | Dig Depth Range: | 11.5 to 93 ft (3.5 to 28.3 m) |
| | Suction Diameter: | 34 in (864 mm) |
| | Discharge Diameter: | 30 in (762 mm) |
| | Ladder Weight: | 325 tons (294,840 kg) |
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| Machinery & Power |
| | Cutter Power: | 2,400 hp (1,789 kW) |
| | Total Installed Power: | 18,972 hp (14,146 kW) |
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| ILLINOIS |
| Dimensions |
| | Length: | 220 ft (67.1 m) |
| | Breadth: | 67 ft (20.4 m) |
| | Depth: | 12.5 ft (3.8 m) |
| | Overall Length: | 309 ft (94.2 m) |
| | Draft: | 9 ft (2.7 m) |
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| Operating Parameters |
| | Dig Depth Range: | 11 to 75 ft (3.4 to 22.9 m) |
| | Suction Diameter: | 34 in (864 mm) |
| | Discharge Diameter: | 30 in (762 mm) |
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| Machinery & Power |
| | Cutter Power: | 1,785 hp (1,331 kW) |
| | Total Installed Power: | 11,350 hp (8,464 kW) |
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| ALASKA |
| Dimensions |
| | Length: | 220 ft (67.1 m) |
| | Breadth: | 56 ft (17.1 m) |
| | Depth: | 12.5 ft (3.8 m) |
| | Overall Length: | 312 ft (95.1 m) |
| | Draft: | 8 ft (2.4 m) |
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| Operating Parameters |
| | Dig Depth Range: | 11 to 87 ft (3.4 to 26.5 m) |
| | Suction Diameter: | 34 in (864 mm) |
| | Discharge Diameter: | 30 in (762 mm) |
| | Ladder Weight: | 335 tons (303,907 kg) |
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| Machinery & Power |
| | Cutter Power: | 1,400 hp (1,044 kW) |
| | Total Installed Power: | 11,315 hp (8,438 kW) |
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| PONTCHARTRAIN |
| Dimensions |
| | Length: | 170 ft (51.8 m) |
| | Breadth: | 39 ft (11.9 m) |
| | Depth: | 10 ft (3.0 m) |
| | Overall Length: | 243 ft (74.1 m) |
| | Draft: | 7 ft (2.1 m) |
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| Operating Parameters |
| | Dig Depth Range: | 10 to 65 ft (3.0 to 19.8 m) |
| | Suction Diameter: | 28.5 ft (724 mm) |
| | Discharge Diameter: | 27 in (686 mm) |
| | Ladder Weight: | 175 tons (158,760 kg) |
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| Machinery & Power |
| | Main Pump Power: | 4,000 hp (2,983 kW) |
| | Total Installed Power: | 6,000 hp (4,474 kW) |
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| UTAH |
| Dimensions |
| | Length: | 91.8 ft (28.0 m) |
| | Breadth: | 9.6 ft (2.9 m) |
| | Depth: | 4.6 ft (1.4 m) |
| | Draft: | 4.6 ft (1.4 m) |
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| Operating Parameters |
| | Dig Depth Range: | 8.2 to 52.5 ft (2.5 to 16.0 m) |
| | Suction Diameter: | (600 mm) |
| | Discharge Diameter: | (550 mm) |
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| Machinery & Power |
| | Total Installed Power: | 3,350 hp (2,498 kW) |
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| ALABAMA |
| Dimensions |
| | Length: | 112 ft (34.1 m) |
| | Overall Length: | 138 ft (42.1 m) |
| | Draft: | 4.0 ft (1.2 m) |
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| Operating Parameters |
| | Dig Depth Range: | 4 to 45 ft (1.2 to 13.7 m) |
| | Suction Diameter: | 20 in (508 mm) |
| | Discharge Diameter: | 18 in (457 mm) |
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| Machinery & Power |
| | Cutter Power: | 250 hp (186 kW) |
| | Total Installed Power: | 1,665 hp (1,242 kW) |
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