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Revision as of 11:20, 24 July 2022

Sediment trap sizing table
Link to this table

Drainage area (ac) Total Volume (ft3) Wet Volume (ft3) Dry Volume (ft3) Minimum Depth (ft) Depth of Permanent Pool (ft) Minimum Bottom Length (ft) Minimum Bottom Width
1 3600 1800 1800 2.5 1.5 46 23
2 7200 3600 3600 2.75 1.5 64 32
3 10800 5400 5400 3.0 1.75 76 38

Table assumes 2:1 side slopes; Minimum depth is from trap bottom to weir crest and includes both wet and dry storage