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A tidal barrage is a dam-like structure used to capture the energy from masses of water moving in and out of a bay or river due to tidal forces. [1] [2] Instead of damming water on one side like a conventional dam, a tidal barrage allows water to flow into a bay or river during high tide, and releases the water during low tide.
The Nampho Dam or West Sea Dam, also known as the West Sea Barrage or West Sea Lock Gate, is a tidal barrage located 15 km west of the special city of Nampho, North Korea. It is a large, eight-km-long system of dams, three lock chambers, and 36 sluices , allowing the passage of ships up to 50,000 tons.
Head of tide, tidal limit [2] or tidehead [3] is the furthest point upstream where a river is affected by tidal fluctuations, [4] or where the fluctuations are less than a certain amount. [5] The river section influenced by tides and marine forces, but without salinity is a tidal river. Downstream areas are brackish and termed estuaries. [6]
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
Tidal range, harnessing potential energy from the height difference between high and low tides, impounding water in a tidal barrage or lagoon. Tidal stream, harnessing kinetic energy of the tidal streams and currents flowing around the coastline using free-stream turbines. There could be up to 20 GW of tidal range resource in the UK, able to ...
Download as PDF; Printable version; In other projects Wikidata item; ... Pages in category "Tidal barrages" The following 23 pages are in this category, out of 23 total.
Download as PDF; Printable version; ... Tidal barrages (23 P) B. Barrages in India (29 P) Pages in category "Barrages (dam)"
Tide mills are usually situated in river estuaries, away from the effects of waves but close enough to the sea to have a reasonable tidal range. Cultures that built such mills have existed since the Middle Ages, and some may date back to the Roman period. A modern version of a tide mill is the electricity-generating tidal barrage.