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Check dams

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{plain list|1=*Check dams usually consist of crushed rock gabions, or pre-treated timber up to 0.6 m in height. *Rocks used in check dams should have median diameter 25-75 mm. *The spacing of dams should not exceed the horizontal distance from the toe of the upstream dam to the same elevation on the downstream dam. *Where check dams are used, the maximum design depth of ponded water must be 0.5 m.}

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