System design brief
There was a brief to design a green retrofitted SuDS Buffering & Infiltration system. The site consists circa 100 houses and flats with all surrounding roofs and roads connected through down pipes and gullies to the underground sewage system. Small common linear green areas run the length of courtyards between the roads. The sewage system was too small to cope with the rainwater runoff from persistent and heavy downpours, resulting in flooding damage and health risks. Additionally, onsite green areas required watering twice weekly during summer.
The Hydrorock Natural Aquifer SuDS System
The Hydrorock Natural Aquifer SuDS System was purposely designed to buffer 60,000 litres (1 hour) within a heavily built up area accommodating multiple overground and underground obstacles, with minimal disruption to the residents’ normal lives.
Hydrorock Aquifer Blocks are solid which enabled placement immediately adjacent to buildings. The blocks enabled decentralisation of water, dispersing it widely across the site optimising soil water balance for the green areas.
The site plan on the Project PDF Download shows the dispersed Hydrorock Natural Aquifer SuDS System placed around the site in 12 Modules of varying capacity.