As the frequency and severity of flooding is perceived to have increased in recent years, current legislation now requires that appropriate assessment is undertaken in order to ascertain whether any proposed development site itself is at risk of flooding and also to examine the potential for the development of the site to exacerbate flood risk elsewhere. Legislation further recommends the use of sustainable urban drainage systems (SUDS) for controlling the surface water runoff from developments. SUDS use techniques to mimic natural drainage processes and control surface water runoff as close to its origin as possible before it enters a watercourse/sewer. The aim therefore should be for new developments not to increase runoff and for redevelopment to reduce runoff.
Roughton Engineers have, in recent years, gained expertise in the development of these techniques including the production of Flood Risk Assessment (FRA) reports in accordance with Government Planning Policy Statement No 25: Development and Flood Risk (PPS25) and the design and implementation of a range of SUDS techniques. Our services include:
Flood Risk Assessments (PPS25)
Flood Risk Sequential Tests
Storage systems including flow control devices
Analysis and design of flood alleviation works
Design of Sustainable Drainage Systems (SUDS) including