National House Builder
Value of Works
£14.5 Million (Phase 1)
Description of Works
Delivery of a bespoke sustainable drainage design which delivered commercial benefits for the client.
Hampton Gardens involves the construction of 870 residential properties.
Work commenced in November 2016 and the expected duration to completion is 8 years.
We were tasked with managing rainwater run-off from private dwellings and conveying it to natural watercourse using SuDS techniques. The design provides controlled flows and water quality enhancement. The proposed solution required the local highways authority (Peterborough City Council) to accept a water discharge into the proposed highway sub base. To achieve this we had to prove that flood risk and management challenges had been addressed.
Rainwater downpipes were directly connected into coarse graded aggregate (CGA) in driveway sub-bases. As the water passes through the stone it is naturally treated to improve quality. The water then passes into the highway which has the same CGA sub base. This further filtrates the water before discharge into traditional pipework. Final discharge is into a teardrop lake and then a river.
Using this SuDS technique, we have reduced the impact of development. The natural water cycle has been restored by mimicking natural water processes. This approach has reduced the need for traditional road drainage (pipes & gullies). As the design has proved successful, we hope to incorporate this technique into more of our projects moving forward.
To find out if your project can benefit from utilising SuDS techniques, contact us today.