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Many pathways of water can enter through a dam structure to produce a well-defined nappe. However, engineers classify dams as either overflow dams, where water consistently flows over or is blocked through a gate on top of crest, or non-overflow dams, which channel water through or around the dam with emergency floodgates.
Chute spillway of Llyn Brianne dam in Wales. A spillway is a structure used to provide the controlled release of water downstream from a dam or levee, typically into the riverbed of the dammed river itself. In the United Kingdom, they may be known as overflow channels. Spillways ensure that water does not damage parts of the structure not ...
Asprokremmos dam is the second largest dam in Cyprus. It is built at an altitude of about 100 m above sea level and is located 16 km, (10 miles) east of the city of Pafos. Due to poor rainfall it is a rare event that the dam overflows. On 27 January 2012 [1] the dam did overflow, for the first time since 2004. [2]
Upstream along Teepee Creek is the Tee-Pee Creek Dam. The dam is 3 metres (9.8 ft) high and contains a reservoir with a volume of 270 dam 3 (220 acre⋅ft). It was built in 1950 and is owned and operated by the Saskatchewan Water Security Agency. [5] From Teepee Creek, Overflowing River carries on and crosses Highway 9 and then turns east. A ...
Wilbur Dam is a concrete gravity overflow dam 77 feet (23 m) high and 375 feet (114 m) long, and has a generating capacity of 10,700 kilowatts. [ 4 ] [ 5 ] The dam's spillway has four radial gates with a combined discharge of 34,000 cubic feet per second (960 m 3 /s). [ 6 ]
Oroville Dam, an important part of the California State Water Project, is an earthen embankment dam on the Feather River, east of the city of Oroville in Northern California. The dam is used for flood control, water storage, hydroelectric power generation, and water quality improvement in the Sacramento–San Joaquin River Delta. [1]:
The reservoir emptying through the failed Teton Dam on June 5, 1976 Ruins of the dam of Vega de Tera (Spain) after breaking in 1959. A dam failure or dam burst is a catastrophic type of structural failure characterized by the sudden, rapid, and uncontrolled release of impounded water or the likelihood of such an uncontrolled release. [1]
The Thomson Dam is a major Clay core and rockfill embankment dam with a Uncontrolled, Ogee-shaped overflow weir and chute spillway across the Thomson River, located about 130 kilometres (81 mi) east of Melbourne in the West Gippsland region of the Australian state of Victoria.