Spillway

A spillway is a structure used to provide the controlled release of flows from a dam or levee into a downstream area, typically being the river that was dammed. In the UK they may be known as overflow channels. Spillways release floods so that the water does not overtop and damage or even destroy the dam. Except during flood periods, water does not normally flow over a spillway. In contrast, an intake is a structure used to release water on a regular basis for water supply, hydroelectricity generation, etc. Floodgates and fuse plugs may be designed into spillways to regulate water flow and dam height. Other uses of the term "spillway" include bypasses of dams or outlets of a channels used during highwater, and outlet channels carved through natural dams such as moraines.

Read more about Spillway:  Types, Design Considerations, Safety, Additional Spillway Images

Other articles related to "spillway, spillways":

Additional Spillway Images
... Media related to Spillways at Wikimedia Commons A labyrinth spillway and a fish ladder (left) of the Hope Mills Dam in North Carolina Spillway with flip bucket at Burdekin ... Japan) Looking down into the Bell mouth spillway at Llyn Celyn ...
Tiber Dam
... to the southern rim of the reservoir near the dam due to difficulties with the spillway settling ... From 1976 to 1989, the spillway was rehabilitated ... The dam's main spillway is controlled by three gates and has a maximum discharge of 68,467 cu ft/s (1,939 m3/s) ...
Lake Julius
... arch and buttress type structure, with the spillway discharging over the tops of the arches ... The spillway crest is 18.3 metres above bed level ... The spillway is a precast superstructure and the dissipation slab at ground level is post tensioned to the foundation rock ...
Canning Dam - Gallery
... The dam wall and slip-way of wCanning Dam in Perth, Western Australia Spillway Spillway, reservoir side Panorama Commemorative plaque Canning Dam wall, from the top of the walkway Canning Dam ...
Borumba Dam - Spillway
... According to a local councillor the spillway developed a crack after an earthquake on 1 December 1991 ...