spillway


spillway
/spil"way'/, n.
a passageway through which surplus water escapes from a reservoir, lake, or the like.
[1885-90; SPILL1 + WAY1]

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 passage for surplus water over or around a dam when the reservoir itself is full. Spillways are particularly important safety features for earth dams (earthfill dam), protecting the dam and its foundation from erosion. They may lead over the dam or a portion of it or along a channel around the dam or a conduit through it.

      The erosive energy of the water at the foot of the spillway is dissipated by a stilling basin or by a sloping apron tempering the fall and ending in a curved bucket that directs the flow away from the foundation.

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Universalium. 2010.

Look at other dictionaries:

  • Spillway — Spill way , n. A sluiceway or passage for superfluous water in a reservoir, to prevent too great pressure on the dam. [1913 Webster] …   The Collaborative International Dictionary of English

  • spillway — 1889, from SPILL (Cf. spill) + WAY (Cf. way) …   Etymology dictionary

  • spillway — ☆ spillway [spil′wā΄ ] n. [ SPILL1 + WAY] a passageway or channel to carry off excess water, as around a dam …   English World dictionary

  • Spillway — Chute spillway of Llyn Brianne dam in Wales 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… …   Wikipedia

  • spillway — vandens nuleidimas statusas T sritis ekologija ir aplinkotyra apibrėžtis Vandens išleidimas iš vandens telkinio per užtvanką (ar slenkstį, sienelę) vandens srovės tėkmėje. atitikmenys: angl. overfall; spillway; weir vok. Überfall, m; Überlauf, m; …   Ekologijos terminų aiškinamasis žodynas

  • spillway — noun Date: 1889 a passage for surplus water to run over or around an obstruction (as a dam) …   New Collegiate Dictionary

  • spillway — passage for overflow of surplus water, e.g. from a dam …   Dictionary of ichthyology

  • spillway — noun A path designed to take away overflow safely …   Wiktionary

  • spillway — A groove or channel through which food may pass from the occlusal surfaces of teeth during the masticatory process. SYN: sluiceway. * * * spill·way (spilґwa) embrasure …   Medical dictionary

  • spillway —    A device that allows for the escape of excess water [16] …   Lexicon of Cave and Karst Terminology


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