Changes

*for enhanced [[swales]] may be up to 0.6 m in height; the maximum design depth of ponded water should be ≤ 0.6 m.

*for enhanced [[swales]] may be up to 0.6 m in height; the maximum design depth of ponded water should be ≤ 0.6 m.

*designed for higher flow velocities should have spillways incorporated into their profile, to direct water to the centre of the swale.  

*designed for higher flow velocities should have spillways incorporated into their profile, to direct water to the centre of the swale.  

*are usually installed between 10-20 m along the swale. The spacing of dams should not exceed the horizontal distance from the toe of the upstream dam to the same elevation on the downstream dam.  

*are usually installed between 10 - 20 m along the swale. The spacing of dams should not exceed the horizontal distance from the toe of the upstream dam to the same elevation on the downstream dam.  

*should have energy dissipation and erosion control measures installed in the 1 - 2 m  downstream. Examples include large aggregate or [[Turf reinforcement|turf reinforcement]]}}

*should have energy dissipation and erosion control measures installed in the 1 - 2 m  downstream. Examples include large aggregate or [[Turf reinforcement|turf reinforcement]]}}