Check dam

Rarity: Common

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At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

A check dam is a small, sometimes temporary, dam constructed across a swale, drainage ditch, or waterway to counteract erosion by reducing water flow velocity. Check dams themselves are not a type of new technology; rather, they are an ancient technique dating from the second century AD.

Excerpt from the Wikipedia article “Check dam”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Arne Müseler, CC BY-SA 3.0 de, via Wikimedia Commons.