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Grassed Waterway
How it works
A natural drainage way is graded and shaped to form a smooth bowl-shaped channel. This area is then seeded to sod forming grasses. Runoff water that flows down the drainage way in a storm event flows across the grass rather than tearing away the soil and forming a larger gully. An outlet is often installed at the base of the drainage way to stabilize the waterway and prevent a new gully from forming.
How it helps
- Grass cover protects the drainage way from gully erosion.
- Vegetation may act as a filter, absorbing some of the nutrients and chemicals from runoff.
- Cover provides habitat for small birds and animals.
Link to NRCS Standards & Specifications
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