Difference between revisions of "Check dams"

From LID SWM Planning and Design Guide
Jump to navigation Jump to search
Line 1: Line 1:
{{plain list|1=
{{plainlist|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.}}

Revision as of 01:13, 19 September 2017

  • 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.