Hydraulic Dredgers
Hydraulic dredgers use water to transport the dredged material. The material is picked up by the suction of a pump, then transported through a pipeline in the form of a slurry. |
Examples
- Cutter Suction Dredge
- Horizontal Auger Dredge
- Dustpan Dredge
- Plain Suction Dredge
- Jet Suction Dredge
- Bucket Wheel Dredge
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Mechanical Dredgers
Mechanical Dredgers use a bucket , clamshell or other mechanical means to scoop the material from the bottom. If the material cannot be discharged close to the dredge, then it must be stored for subsequent transport. |
Examples
- Clamshell Dredge
- Excavator Dredge
- Backhoe Dredge
- Bucket Ladder Dredge
- Environmental Dredge
- Dipper Dredge
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Hopper Dredgers
Usually ship-form in design, a hopper dredger deposits the dredged material in an on-board hopper for transportation. Both mechanical and hydraulic designs are common for loading the hopper as well as for discharging the dredged material. |
Examples
- Trailing Suction Hopper Dredge
- Clamshell Loading Hopper Dredge
- Bucket Ladder Hopper Dredge
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Cargo Barges
Cargo barges are vessels whose design maximizes cargo space. This category ranges from flat bottomed, un-propelled scows to sophisticated ship-form hopper barges. |
Examples
- Deck Barge
- Hopper Barge
- Split Hull Hopper Barge
- Bottom Dumping Hopper Barge
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Work and Crane Barges
This category encompasses barges that are designed as floating working platforms, or barges that perform specialized functions. |
Examples
- Crane Barge
- Spud Barge
- Modular Barge
- Jack Up Barge
- Accommodations Barge
- Anchor Barge
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Tug Boats and Working Boats
A working boat is a purpose built vessel constructed specifically to perform a commercial function such as pushing, towing, anchor handling, or transporting personnel. |
Examples
- Push Boat
- Tow Boat
- Tug Boat
- Crew Boat
- Work Boat
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Dredger Components
This category encompasses the parts of a dredger such as dredger pumps dredger booster pumps, engines, cutter heads, hydraulic components, ladders and the like. |
Examples
- Dredge Booster Pump
- Dredge Pump
- Engine
- Dredge Cutter Head
- Dredge Anchor
- Generator
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Dredge Pipeline Components
This category encompasses the all of the parts of dredger discharge pipeline including pipe, floats, pipeline pontoons, ball joints, etc. |
Examples
- Floating Pipeline
- Shore Pipeline
- Ball Joints
- Polyethylene Pipe
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Dredging Support Equipment
This category encompasses the myriad equipment required to support a dredging operation on shore. |
Examples
- Pipe Fusion Machine
- Land Crane
- Earthmoving Equipment
- Sand Plant
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Hydraulic Dredges 
