Permanent Land Sites
type: Concept

SURFACE WATER WEIR
type: Concept
change note: 2022-02-08 13:17:09.0 [tstevens] insert Definition (id: null text: A small dam built across a river to control the upstream water level. Weirs have been used for ages to control the flow of water in streams, rivers, and other water bodies. Unlike large dams which create reservoirs, the goal of building a weir across a river isn’t to create storage, but only to gain some control over the water level. Over time, the term weir has taken on a more general definition in engineering to apply to any hydraulic control structure that allows water to flow over its top, often called its crest. language code: en);
change note: 2021-07-23 17:21:03.0 [sritz] insert AltLabel (id: null category: primary text: SURFACE WATER WEIR language code: en);
change note: 2021-11-18 08:24:41.0 [tstevens] Move Concepts delete broader relation (null); add broader relation (SURFACE WATER WEIR [a0dc24a6-75d5-48c4-aa94-0a0c9c4a440a,826569] - Permanent Land Sites [0ec10fd9-492c-498a-b6d8-e2840cc3643b,835887]);
definition: A small dam built across a river to control the upstream water level. Weirs have been used for ages to control the flow of water in streams, rivers, and other water bodies. Unlike large dams which create reservoirs, the goal of building a weir across a river isn’t to create storage, but only to gain some control over the water level. Over time, the term weir has taken on a more general definition in engineering to apply to any hydraulic control structure that allows water to flow over its top, often called its crest.
in scheme: platforms