CUTTER SUCTION DREDGES

Cutter suction, or hydraulic, dredges are floating platforms equipped with a rotating cutter that excavates the sea floor by feeding the loosened material into a pipe and pump system that typically transports the material and water slurry up to five miles away from the site. Transport distances can be extended by the addition of booster pumps in the pipeline route. These dredges can pump slurry of many different materials such as: mud, sand, clay, and rock. The ability to dredge stiff or hard material is dependent on the size and weight of the dredging equipment and the installed power of the cutter. The ability to pump heavy material is dependent upon the installed power and size of the pumping systems.

Cutter Suction Dredges

TEXAS

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)
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)
Cutter Power: 4,000 hp (2,983 kW)
Total Installed Power: 20,430 hp (15,233 kW)
+ 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)
+ 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)
+ Machinery and Power
Cutter Power: 4,000 hp (2,983 kW)
Total Installed Power: 20,430 hp (15,233 kW)
Cutter Suction Dredges

OHIO

Length: 275 ft (83.8 m)
Breadth: 72 ft (21.9 m)
Depth: 16 ft (4.9 m)
Draft: 9 ft (2.7 m)
Dig Depth Range: 11.5 to 79 ft (3.5 to 24 m)
Suction Diameter: 34 in (864 mm)
Discharge Diameter: 30 in (762 mm)
Ladder Weight: 807 tons (732,098 kg)
Cutter Power: 4,500 hp (3,355 kW)
Total Installed Power: 15,750 hp (11,744 kW)
+ Dimensions
Length: 275 ft (83.8 m)
Breadth: 72 ft (21.9 m)
Depth: 16 ft (4.9 m)
Draft: 9 ft (2.7 m)
+ Operating Parameters
Dig Depth Range: 11.5 to 79 ft (3.5 to 24 m)
Suction Diameter: 34 in (864 mm)
Discharge Diameter: 30 in (762 mm)
Ladder Weight: 807 tons (732,098 kg)
+ Machinery and Power
Cutter Power: 4,500 hp (3,355 kW)
Total Installed Power: 15,750 hp (11,744 kW)
Cutter Suction Dredges

CAROLINA

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)
Dig Depth Range: 14 to 84 ft (4.3 to 26 m)
Suction Diameter: 34 in (864 mm)
Discharge Diameter: 30 in (762 mm)
Cutter Power: 3,000 hp (2,237 kW)
Total Installed Power: 15,620 hp (11,647 kW)
+ 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)
+ Operating Parameters
Dig Depth Range: 14 to 84 ft (4.3 to 26 m)
Suction Diameter: 34 in (864 mm)
Discharge Diameter: 30 in (762 mm)
+ Machinery and Power
Cutter Power: 3,000 hp (2,237 kW)
Total Installed Power: 15,620 hp (11,647 kW)
Cutter Suction Dredges

FLORIDA

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)
Dig Depth Range: 25 to 95 ft (7.6 to 29.0 m)
Suction Diameter: 37 in (940 mm)
Discharge Diameter: 36 in (914 mm)
Cutter Power: 3,000 hp (2,237 kW)
Total Installed Power: 25,400 hp (18,938 kW)
+ 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)
+ Operating Parameters
Dig Depth Range: 25 to 95 ft (7.6 to 29.0 m)
Suction Diameter: 37 in (940 mm)
Discharge Diameter: 36 in (914 mm)
+ Machinery and Power
Cutter Power: 3,000 hp (2,237 kW)
Total Installed Power: 25,400 hp (18,938 kW)
Cutter Suction Dredges

CALIFORNIA

Length: 190 ft (57.9 m)
Breadth: 50 ft (15.2 m)
Depth: 15 ft (4.6 m)
Draft: 10.5 ft (3.2 m)
Overall Length: 291 ft (88.7 m)
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)
Cutter Power: 2,400 hp (1,789 kW)
Total Installed Power: 18,972 hp (14,146 kW)
+ Dimensions
Length: 190 ft (57.9 m)
Breadth: 50 ft (15.2 m)
Depth: 15 ft (4.6 m)
Draft: 10.5 ft (3.2 m)
Overall Length: 291 ft (88.7 m)
+ 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)
+ Machinery and Power
Cutter Power: 2,400 hp (1,789 kW)
Total Installed Power: 18,972 hp (14,146 kW)
Cutter Suction Dredges

ILLINOIS

Length: 220 ft (67.1 m)
Breadth: 67 ft (20.4 m)
Depth: 12.5 ft (3.8 m)
Draft: 9 ft (2.7 m)
Overall Length: 309 ft (94.2 m)
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)
Ladder Weight: 502 tons (455,407 kg)
Cutter Power: 1,785 hp (1,331 kW)
Total Installed Power: 11,350 hp (8,464 kW)
+ Dimensions
Length: 220 ft (67.1 m)
Breadth: 67 ft (20.4 m)
Depth: 12.5 ft (3.8 m)
Draft: 9 ft (2.7 m)
Overall Length: 309 ft (94.2 m)
+ 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)
Ladder Weight: 502 tons (455,407 kg)
+ Machinery and Power
Cutter Power: 1,785 hp (1,331 kW)
Total Installed Power: 11,350 hp (8,464 kW)
Cutter Suction Dredges

ALASKA

Length: 220 ft (67.1 m)
Breadth: 56 ft (17.1 m)
Depth: 12.5 ft (3.8 m)
Draft: 8 ft (2.4 m)
Overall Length: 312 ft (95.1 m)
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)
Cutter Power: 1,400 hp (1,044 kW)
Total Installed Power: 11,315 hp (8,438 kW)
+ Dimensions
Length: 220 ft (67.1 m)
Breadth: 56 ft (17.1 m)
Depth: 12.5 ft (3.8 m)
Draft: 8 ft (2.4 m)
Overall Length: 312 ft (95.1 m)
+ 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)
+ Machinery and Power
Cutter Power: 1,400 hp (1,044 kW)
Total Installed Power: 11,315 hp (8,438 kW)
Cutter Suction Dredges

PONTCHARTRAIN

Length: 170 ft (51.8 m)
Breadth: 39 ft (11.9 m)
Depth: 10 ft (3.0 m)
Draft: 7 ft (2.1 m)
Overall Length: 243 ft (74.1 m)
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)
Cutter Power: 4,000 hp (2,983 kW)
Total Installed Power: 6,000 hp (4,474 kW)
+ Dimensions
Length: 170 ft (51.8 m)
Breadth: 39 ft (11.9 m)
Depth: 10 ft (3.0 m)
Draft: 7 ft (2.1 m)
Overall Length: 243 ft (74.1 m)
+ 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)
+ Machinery and Power
Cutter Power: 4,000 hp (2,983 kW)
Total Installed Power: 6,000 hp (4,474 kW)
Cutter Suction Dredges

ALABAMA

Length: 112 ft (34.1 m)
Breadth: 138 ft (42.1 m)
Draft: 4.0 ft (1.2 m)
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)
Cutter Power: 250 hp (186 kW)
Total Installed Power: 1,665 hp (1,242 kW)
+ Dimensions
Length: 112 ft (34.1 m)
Breadth: 138 ft (42.1 m)
Draft: 4.0 ft (1.2 m)
+ 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)
+ Machinery and Power
Cutter Power: 250 hp (186 kW)
Total Installed Power: 1,665 hp (1,242 kW)