A barrage in Rockhampton

A tidal barrage is an artificial obstruction at the mouth of a tidal watercourse, in contrast to a normal barrage along a river's inland course.

Purpose

The common primary functions of a barrage are:

  • Increase the depth of a river (similar to a weir)
  • Maintain a separation between fresh and salt water
  • Reduce the risk of tidal flooding up the river

Secondary functions may include:

Notable barrages

Power Station Barrages

Proposed barrages

See also

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