This area is seeded to sod-forming grasses. Runoff water that flows down the drainageway flows across the grass rather than tearing away soil and forming a larger gully. An outlet is often installed at the base of the drainageway to stabilize the waterway and prevent a new gully from forming. How it helps Grass cover protects the drainageway from gully erosion. Vegetation may act as a filter, absorbing some of the chemicals and nutrients in runoff water.
Vegetation provides cover for small birds and animals.
A waterway should be deep enough and wide enough to carry the runoff from the area draining into it. Check with NRCS for recommended depth and width. Plant seed at recommended time and rates. Plant across the area or in a figure 8 pattern to reduce erosion. A nurse crop, temporary cover or mulching may be necessary until permanent cover is established.