There was a good reason the dredger we met had been working the patch for so long.
From the guardian.co.uk
In July, the hydrosulfide stench caused workers aboard a dredger to faint.
From the time.com
Most of its rutile is mined from an expanse of water using a huge dredger.
From the thisismoney.co.uk
Unlike Daniel, a dredger of bad memories and mixed feelings, Ragtime was a safe book.
From the time.com
Pruitt, a third-generation crab dredger from Tangier Island, named the boat for his mother.
From the inrich.com
A plain suction dredger has no tool at the end of the suction pipe to disturb the material.
From the en.wikipedia.org
This is an early type of dredger which was formerly used in shallow water in the Netherlands.
From the en.wikipedia.org
The dredger MV Sand Kite, operating in thick fog, collided with one of the Thames Barrier's piers.
From the en.wikipedia.org
The dredger MV Sand Kite sailing in thick fog, collided with one of the Thames Barrier's piers.
From the en.wikipedia.org
More examples
A barge (or a vessel resembling a barge) that is used for dredging
Dredging is an excavation activity or operation usually carried out at least partly underwater, in shallow seas or fresh water areas with the purpose of gathering up bottom sediments and disposing of them at a different location. This technique is often used to keep waterways navigable.
A vessel equipped for the removal of sand or sediment from the seabed; a container with a perforated lid used for scattering sugar or flour
A self-propelled vessel used to recover silt from the bed of a river, port, estuary etc.
A vessel that collects up and scrapes silt away from the bottom of the quay and its walls.