SuDS in London - a guide

Image courtesy of Robert Bray Associates Image courtesy of Robert Bray Associates
Weir detail at Grovelands Park
• Swales slow the flow of water through
the system and ensure that, with
the weirs and wetland bioretention
basin, the higher concentrated
polluted water is discharged into the
wetland, rather than Salmons Brook
• Kerb inlets allow rainwater to be
conveyed away from the combined
sewer overflow and into the
swales and through the network
of weirs and wetland basins
Benefits
• Salmons Brook water quality improved
• Flood risk reduced and road
runoff management improved
• An area of greater recreational
value created
• Reduction in house insurance costs
for surrounding properties
• Public awareness of the reality of waste
and pollution in their environment that
might otherwise remain unnoticed
Lessons learned
• The value of local community
involvement
• Managing woodland structure is crucial
in ensuring that light levels are sufficient
for the establishment of vegetation
Image courtesy of Chaoming Li
Treatment wetland at Grovelands Park
• A sense of ownership has been
fostered through scrub clearance
and wetland planting days
Swale incorporating existing mature trees
108 5 Case studies