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→Planning Considerations
A linear design (surface area typically >2:1 length:width) is a common feature of a swales:
A linear design (surface area typically >2:1 length:width) is a common feature of a swales:
*An absolute minimum width is 0.6 m is required for bioswales to have healthy plant growth, and to facilitate construction,
*An absolute minimum width is 0.6 m is required for bioswales to have healthy plant growth, and to facilitate construction,
*Grassed swales are usually mown as part of routine maintenance, so the cross section will be triangular or trapzoidal in shape with maximum side slopes of 1:3. The minimum width for this type would be 2 m. See [[[[Enhanced grass swales#Best cross sections]]
*Grassed swales are usually mown as part of routine maintenance, so the cross section will be triangular or trapzoidal in shape with maximum side slopes of 1:3. The minimum width for this type would be 2 m. See [[Enhanced grass swales#Best cross sections]]
Swales may be graded along longitudinal slopes between 0.5 - 6 %:
Swales may be graded along longitudinal slopes between 0.5 - 6 %: