GABION CHECK DAMS

CheckDams1

Gabion check dams are small barriers constructed of a series of gabion baskets bound together to form a flexible row that acts to slow down the water flow in drainage ditches or storm water runoff channels

They are commonly used with moderate slopes up to 10% and positioned in series with a typical spacing of 25 -100 yds. apart. These dams are either constructed straight across the channel or in a crescent shape with its open end upstream. The crescent shape check dam is commonly used to allow a longer spillway than is possible with a straight one. At the same time it anchors and protects the ends of the dam. An offset equal to about one-sixth of the gully's width at the dam site will generally provide sufficient curvature.

The gabion baskets should be securely wired to a row of posts set along the curve of the dam at about 3 ft intervals. Posts should be placed to form an interval near the center of the gully for the central portion of the spillway.

See more CHECK DAM examples below ...

EXAMPLE PHOTOS OF CHECK DAMS: