Difference between revisions of "Check dams"
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| − | {Plain list|1= | + | {{Plain list|1= |
*Check dams usually consist of crushed rock gabions, or pre-treated timber up to 0.6 m in height. | *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. | *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. | *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.} | + | *Where check dams are used, the maximum design depth of ponded water must be 0.5 m.}} |