Earth:List of tidal barrages
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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[1]
- Goolwa Barrages
- Marina Barrage
- Prakasham Barrage
- Swansea barrage
- Tees Barrage[2]
- West Sea Barrage
-
Partial view of the West Sea Barrage near Namp'o, North Korea in 1989 -
Lock in Cardiff Bay Barrage -
Marina barrage bridge
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[3]
- Mersey Barrage across the Mersey Estuary in England[4]
See also
- List of tidal power stations
- Dam
- Floodgate
- Thames Barrier
- Weir
References
- ↑ "Barrage story". https://www.cardiffharbour.com/barrage-story/.
- ↑ "Tees Barrage". https://www.ice.org.uk/what-is-civil-engineering/infrastructure-projects/tees-barrage.
- ↑ "Severn Barrage: £25bn plans 'dead in the water'". BBC News. 9 September 2013. https://www.bbc.co.uk/news/uk-wales-24013575.
- ↑ "Authority to vote on River Mersey tidal barrage study plan". BBC News. 15 March 2024. https://www.bbc.co.uk/news/uk-england-merseyside-68568843.
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