List of tidal barrages

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:


 * Tidal power generation
 * Artificial whitewater leisure centres
 * Form a Coastal reservoir

Notable barrages

 * Cardiff Bay Barrage
 * Goolwa Barrages
 * Marina Barrage
 * Prakasham Barrage
 * Swansea barrage
 * Tees Barrage
 * West Sea Barrage

Power Station Barrages

 * Rance tidal power plant
 * Annapolis Royal Generating Station (Decommissioned)
 * Sihwa Lake Tidal Power Station
 * Kislaya Guba Tidal Power Station
 * Jiangxia Tidal Power Station

Proposed barrages

 * Severn Barrage across the River Severn between Wales and England
 * Mersey Barrage across the Mersey Estuary in England