Department of Natural Resources - Drainage and Soil - Final slopes.


Published: 2017-12-18

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The operator shall:

(A) Grade, contour, or terrace the final slopes to a slope angle sufficient to achieve soil stability and control landslides, erosion, and sedimentation. Slopes with a slope angle of eighteen degrees or less shall be presumed sufficient. Highwalls retained as part of the intended future use shall not be regarded as final slopes; and

(B) Establish diversion ditches with controlled outlets on any final slopes sufficient to achieve soil stability and control landslides, erosion, and sedimentation.