Diversions
ØRidges and channels placed at strategic locations on hillslope to shorten slope length
-Reduce runoff rate and rill erosion
ØGenerally designed with a steepness sufficiently steep that no deposition occurs but not so steep that erosion occurs
Main purpose of diversions is to reduce runoff to control rill erosion.
Diversions are designed to neither deposit sediment or cause erosion.
Build up of deposition causes overtopping and failure.