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Spillway |
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spillway [′spil‚wā]
(civil engineering) A passage in or about a dam or other hydraulic structure for escape of surplus water. Spillway a hydraulic structure for the discharge of excess (flood) water from a reservoir and for the useful release of water into tailwater. A spillway may have openings: surface openings on the crest of a dam, openings sunk below the level of the headwater, other types of deep openings, or two kinds of openings, as in a two-stage spillway. The flow of water is regulated by locks. Some automatic spillways (for example, those working by means of siphons or shafts) are not equipped with locks. Spillways that are built in the bypass of concrete and earthen dams are called coastal spillways. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | GIANT new spillways are being built, with little justification it seems to me, to serve the reservoirs of Ramsden (completed), Riding Wood (under construction) andYateholme (yet to start) under instructions from Europe, we understand, and following a hefty fine for delayed compliance. The main Tarbela dam project consists of 9,000 feet (2,743 meters) long, 470 feet (143 meters) high (above the river bed) earth and rock-fill embankment across the entire width of the river with two spillways cutting through the left bank and discharging into a side valley. DCSMI), which maintained copper-silver-gold mining operations in the area for 17 years until 1997, will repair two collapsed spillways in the huge dam in San Marcelino in Zambales Province. |
Spillways |
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