spillway

Also known as overflow channel

thumb|280px|upright|Chute spillway of Llyn Brianne dam in [[Wales]]

Wikidata facts

Image: Watersheds04 (38194471485).jpg

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Commons category: Spillways
Commons gallery: Spillway
OpenStreetMap tag: waterway=canal

Sources (2)

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~12 min read

Article

14 sections

Contents

Types
Open channel spillway
Chute spillway
Stepped spillway
Bell-mouth spillway {{anchor|glory|plug}}
Siphon spillway
Other types
Design considerations
Energy dissipation
Safety
Gallery
See also
References
External links

thumb|280px|upright|Chute spillway of Llyn Brianne dam in [[Wales]]

A spillway is a structure used to provide the controlled release of water from a dam or levee, typically downstream into the dammed river. In the United Kingdom, it may be known as an overflow channel. A spillway ensures that water does not damage parts of the structure not designed to convey water.