Grass established in a shaped drainageway to prevent gullies from forming.
How it works
A natural or constructed drainageway is graded and shaped to form a smooth, concave channel. This area is seeded to suitable vegetation. Runoff water that flows down the drainageway flows across the grass rather than tearing away soil and forming a gully. An outlet is often installed at the base of the drainageway to stabilize the waterway.
How it helps
Conveys runoff from terraces, diversions, or other concentrations without causing erosion or flooding
Protects drainageways from gully erosion
Filters chemicals and nutrients from runoff water
Provides cover for small birds and animals
Is major land reshaping needed?
Is there a proper outlet for surface runoff at the bottom of the waterway?
Are soil conservation measures installed to prevent siltation?
Will tile drainage be necessary?
A waterway should be deep enough and wide enough to carry peak runoffs.
Plant at recommended times and rates; follow site preparation recommendations.
Nurse crops, temporary cover or mulching may be needed until permanent cover is established.
Maintain the shape and depth of the channel and the stability of the outlet.
Lift implements out of the ground and shut off spray equipment when crossing.
Do not use waterways as roads.
Fertilize as needed.
Mow prior to the rainy season to maintain desired vegetation. Consider nesting seasons for native wildlife before mowing.
Maintain the width of the area when tilling surrounding fields.
Avoid planting end rows along the waterway. This prevents a new gully from forming on the outside edges and allows runoff to reach the waterway.
Inspect the waterway and outlet yearly and/or prior to the rainy season.