Temporary check dams shall comply with the following:
- (a) The maximum contributing drainage area to the dam shall be less than one acre;
- (b) The maximum height of the dam shall be 2 feet;
- (c) The center of the dam shall be at least 6 inches lower than the outer edges;
- (d) The maximum spacing between the dams shall be such that the toe of the upstream dam is at the same elevation as the overflow elevation of the downstream dam;
- (e) The dam shall not be used in a flowing stream;
- (f) The dams shall be checked after each rainfall and at least daily during prolonged rainfall and necessary repairs shall be made immediately;
- (g) Hay bale check dams shall be embedded into the ground at least 4 inches but no more than 6 inches;
- (h) Stone check dams shall be constructed of a well-graded angular 2-inch to 3-inch stone; and
- (i) Timber check dams shall be constructed of 4-inch to 6-inch logs and embedded at least 18 inches deep into the soil.
Source. #9343, eff 1-1-09; ss by #12342, eff 8-15-17; ss by #14472, eff 1-19-26, EXPIRES: 1-19-36