swale
In French: noue
Definition
A wide, shallow, grassed or planted channel that guides surface water to an outlet. It needs a continuous fall and gentle sides.
Also called
- grassed channel
Other names in French
- rigole engazonnée
- fossé engazonné
Sources
The Midland checklist calls for a swale at least 150 mm deep with sides no steeper than 3 to 1.
Lot Grading Plan Review Checklist · Town of Midland (Ontario)