How it works A diversion is much like a terrace, but its purpose is to direct or divert runoff water from an area. A diversion is often built at the base of a slope to divert runoff away from bottom lands. A diversion may also be used to divert runoff flows away from a feedlot, or to collect and direct water to a pond. How it helps Reduces soil erosion on lowlands by catching runoff water and preventing it from reaching farmland below. Vegetation in the diversion channel filters runoff water, improving water quality.
Vegetation provides cover for small birds and animals.
Allows better crop growth on bottomland soils. Tech notes Diversions cannot substitute for terraces used for erosion control. Minimum top width for a diversion ridge is four feet. Each diversion must have an outlet. Establish vegetative outlets before a diversion is constructed.