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Dredging facts for kids

Kids Encyclopedia Facts
Dredge (PSF)
A grab dredge

Dredging is the operation of excavating material from a water environment (sometimes temporarily created). Possible purposes of dredging include: improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing dams, dikes, and other controls for streams and shorelines; and recovering valuable mineral deposits or marine life having commercial value.

In all but a few situations the excavation is undertaken by a specialist floating plant, known as a dredger.

Dredging is carried out in many different locations and for many different purposes, but the main objectives are usually to recover material of value or use, or to create a greater depth of water.

Dredges have been classified as suction or mechanical.

Images for kids

  • Draga cavafango Leonardo - Museo scienza e tecnologia Milano

    Reconstruction of the mud-drag by Leonardo da Vinci (Manuscript E, folio 75 v.)

  • Draga cavafango Leonardo 2 - Museo scienza e tecnologia Milano

    Reconstruction of the mud-drag

  • Pogłębiarka „Sawa”, głowica, Wisła, Saska Kępa, Warszawa 3

    The dredge drag head of a suction dredge barge on the Vistula River in Warsaw, Poland

  • Geopotes 14

    The Geopotes 14 lifting its boom on a canal in The Netherlands. (gēopotēs is Greek for "that which drinks earth")

  • Dredging technique schematic

    Bucket dredging

  • ErfgoedLeiden LEI001016474 Baggervaartuig Hollandsch Diep 4.

    Old Dutch bucket dredging vessel Hollandsch Diep 4

  • Dredger near the Dumbarton Bridge in California

    Mallard II near the Dumbarton Bridge in 2021

  • Daniel Laval (2018)

    French hopper dredger Daniel Laval at work on the Seine estuary (2018)

  • Dredge in the Port of Oakland with San Francisco in the background

    Grab (clamshell) dredge Njord of the Manson Construction Co. fleet in the Port of Oakland, California

  • Dredge No-4 (1)

    The excavator of a Yukon dredge.

  • Lakes Entrance Dredger April Hamer

    April Hamer at Lakes Entrance, Victoria Australia

  • OrisantDredger

    The Orisant a trailing suction dredger in the port of IJmuiden, Netherlands

  • Hong Kong dredger123

    Grab dredging in Victoria Harbour, Hong Kong

  • Alexander von Humboldt (empty)

    Alexander von Humboldt of the Jan De Nul fleet

  • BurigangaDredge

    Sand mining

  • HR-Morris-Pipeline-Dredge

    HR Morris of the Manson Construction Co. fleet, a Cutter Suction Pipeline Dredge, working on Mission Bay, San Diego, California

  • Barge on Neva river

    Dredge ship with barges on Neva bay in Saint Petersburg, Russia

  • Dredge ship top view - 01

    Top view of a suction dredger on the Nandu River, Hainan, China

  • Cutterhead of dredge Bill Holman Louisville Kentucky USA Ohio River mile 607 July 2002 file a2g092

    Cutterhead of dredge Bill Holman, Louisville, Kentucky, USA, Ohio River mile 607, July 2002

  • Xcentric Ripper XR120 in a dredging work

    Xcentric Ripper XR120 is a large jackup leg backhoe dredger

See also

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