Check dam
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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
Concrete check dams in Austria
A steel check dam
A common application of check dams is in bioswales, which are artificial drainage channels that are designed to remove silt and pollution from runoff.
A check dam across the Kudumbur River, in Kerala, India
Drop structure
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A drop structure, also known as a grade control, bed sill, check dam, or weir, is a manmade structure, typically small and built on minor streams, or as part of a dam's spillway, to pass water to a lo
Check dam
…Water conservation structures Drop structure Gabion…
The spillway of Leasburg Diversion Dam, part of the Rio Grande Project, is an example of a vertical hard basin, the most basic form of a drop structure, designed to dissipate energy.
This grouted sloping boulder drop on Trabuco Creek in California is almost entirely covered by floodwater.
The canal spillway of Laguna Diversion Dam, shown here, uses a baffle chute drop structure to pass water to a lower elevation.