definitionCanals and rills are open surface water channels with hard edges. They are simply channels that water flows along whereby they can have a variety of cross sections to suit the urban landscape, including the use of planting to provide both enhanced visual appeal and water treatment.
(Susdrain, Channels & rills, accessed on Sept. 2016 & NWRM, 53 NWRM illustrated, accessed on Sept. 2016)
Co-benefits and impactsCanals may also serve as treatment channels, they collect water, slow it down and provide storage for silt and oil that is captured. The outlets are designed to act as a mini oil separator; hence the channels can be very effective at treating pollution. Apart from effective water and pollution treatment, canals can be visually appealing in urban landscapes and provide amenity value for the local community. They are easy to construct and they are good for biodiversity. Additionally, if canals are sufficiently wide and deep, navigation with boats and ships is possible. The value of real estate located along canals is often higher.
(Susdrain, Channels & rills, accessed on Sept. 2016)
FRI indicators (Show all)Availability of hydraulic structures for river watershed management capable to reduce peak discharges
Illustrations (Show all)rm_images/The_Rill_Garden_Coleton_Fishacre_-_geograph.org.uk_-_233250.jpg
Last modified: Sept. 21, 2016, 7:59 a.m.