#sustainable-drainage

Specific streets and low points flood repeatedly in heavy rain — from clogged drains or drainage never sized for today's storm intensity — causing recurring property damage and access hazards that stay below the threshold for major capital fixes.

Form a standing community Flood Action Group — backed by a flood charity — to systematically log flood hotspots, sustain engagement between events, and act as one coordinated voice to the councils and water companies that otherwise diffuse responsibility.

Install rain gardens, permeable surfaces and other sustainable drainage (SuDS) across the catchment to soak up rainfall where it lands, cutting peak runoff to overwhelmed drains. Most effective as a dispersed, upstream-weighted network.

Nashville has pursued green-infrastructure flood mitigation — depaving, tree planting, and rain gardens — as part of its response since the catastrophic 2010 flood. This case study is included specifically for its hones…

Project Sponge supports community Flood Action Groups in Slough, facilitated by the National Flood Forum. Two groups operate: the Chalvey Flood Action Group (established 2023) and the HCB (Huntercombe, Cippenham, Burnha…

A purpose-built rain garden was installed beside the roundabout on Barnes High Street to reduce surface-water flood risk on paved urban areas. It absorbs excess water from storms and heavy rainfall, easing pressure on l…