Trailing suction hopper dredger

DCI Dredge XV (ship, 1999) (IMO 9164122) at Visakhapatnam, India
The dredge drag head of a suction dredge barge on the Vistula River, Warsaw, Poland
Trailing suction hopper dredger in action in 1987, Beaufort Sea near Tuktoyaktuk

A trailing suction hopper dredger[1] (TSHD) is a type of ship capable of maintaining navigable waterways, deepening the maritime canals that are threatened to become silted, constructing new land elsewhere or replacing sand eroded by storms or wave action on the beaches. This is made possible by large, powerful pumps and engines able to suck sand, clay, silt and gravel.[2]

  1. ^ "Trailing Suction Hopper Dredger". Retrieved 22 September 2014.
  2. ^ "Trailing suction hopper dredger". Retrieved 22 September 2014.