How a drainage swale works
- Controlled surface flow The swale creates a defined path so runoff moves toward a safer discharge area instead of spreading unpredictably.
- Proper grading The channel must maintain enough slope for water to move without creating new low spots.
- Erosion protection Rock, filter fabric and other materials can help stabilize the swale where water velocity is higher.
- Site integration The system can be shaped around lawns, landscape beds, patios and other property features.
