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

Coast Guard Inspected

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 (2,984 kW)
Total Installed Power: 14,400 hp (10,742 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 (2,984 kW)
Total Installed Power: 14,400 hp (10,742 kW)
Cutter Suction Dredges

OHIO

Coast Guard Inspected

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 (3,357 kW)
Total Installed Power: 15,750 hp (11,750 kW)

Coast Guard Inspected

+ 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 (3,357 kW)
Total Installed Power: 15,750 hp (11,750 kW)

Coast Guard Inspected

Cutter Suction Dredges

CAROLINA

Coast Guard Inspected

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 (2,238 kW)
Total Installed Power: 15,620 hp (11,653 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 (2,238 kW)
Total Installed Power: 15,620 hp (11,653 kW)
Cutter Suction Dredges

FLORIDA

Length: 190 ft (57.9 m)
Breadth: 50 ft (15.2 m)
Depth: 14 ft (4.3 m)
Overall Length: 208 ft (63.4 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 (2,238 kW)
Total Installed Power: 21,380 hp (15,949 kW)
+ Dimensions
Length: 190 ft (57.9 m)
Breadth: 50 ft (15.2 m)
Depth: 14 ft (4.3 m)
Overall Length: 208 ft (63.4 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 (2,238 kW)
Total Installed Power: 21,380 hp (15,949 kW)
Cutter Suction Dredges

CALIFORNIA

Length: 208 ft (63.4 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 (1,790 kW)
Total Installed Power: 15,020 hp (11,205 kW)
+ Dimensions
Length: 208 ft (63.4 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 (1,790 kW)
Total Installed Power: 15,020 hp (11,205 kW)
Cutter Suction Dredges

ILLINOIS

Coast Guard Inspected

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: 2,750 hp (2,052 kW)
Total Installed Power: 11,350 hp (8,467 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: 2,750 hp (2,052 kW)
Total Installed Power: 11,350 hp (8,467 kW)
Cutter Suction Dredges

ALASKA

Coast Guard Inspected

Length: 220 ft (67.1 m)
Breadth: 68 ft (20.7 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: 395 tons (358,338 kg), 330 tons short (299,371 kg)
Cutter Power: 1,500 hp (1,119 kW)
Total Installed Power: 11,315 hp (8,441 kW)
+ Dimensions
Length: 220 ft (67.1 m)
Breadth: 68 ft (20.7 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: 395 tons (358,338 kg), 330 tons short (299,371 kg)
+ Machinery and Power
Cutter Power: 1,500 hp (1,119 kW)
Total Installed Power: 11,315 hp (8,441 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: 85 tons (77,110 kg)
Cutter Power: 600 hp (448 kW)
Total Installed Power: 6,025 hp (4,495 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: 85 tons (77,110 kg)
+ Machinery and Power
Cutter Power: 600 hp (448 kW)
Total Installed Power: 6,025 hp (4,495 kW)
Alabama

ALABAMA

Draft:4 ft (1.2 m)

Length: 112 ft (34.1 m)
Overall Length: 138 ft (42 m)
Dig Depth Range: 4 to 45 ft (1.2 to 13.7 m)
Suction Diameter: 20 in (508 mm)
Discharge Diameter: 18 in (457.2 mm)
Cutter Power: 250 hp (187 kW)
Total Installed Power: 1,665 hp (1,242 kW)
+ Dimensions

Draft:4 ft (1.2 m)

Length: 112 ft (34.1 m)
Overall Length: 138 ft (42 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 (457.2 mm)
+ Machinery and Power
Cutter Power: 250 hp (187 kW)
Total Installed Power: 1,665 hp (1,242 kW)