Definition of cofferdam in English:


Line breaks: coffer|dam
Pronunciation: /ˈkɒfədam


  • A watertight enclosure pumped dry to permit construction work below the waterline, as when building bridges or repairing a ship.
    More example sentences
    • Its diversion tunnel is accompanied by upstream and downstream cofferdams that permit construction of the main dam.
    • The construction scheme employed on the bridge consisted of cofferdams for the drilled shaft foundations, and climbing forms for the tower construction.
    • The 1,050 mm diameter outfall on the west side of the airfield required a temporary cofferdam during its construction.

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Pronunciation: skəʊʃ
a small amount; a little