Drainage Consulting and Flood Risk Management

EIGHT things you need to know about Flood Risk Assessments

1. Local Authorities will require a flood risk assessment (FRA) even if the proposed development is not in a flood plain, just to confirm that the site is not at risk of flooding.
2. On its own, a FRA is only half the story, the Local Authority will want to know your strategy for dealing with the foul and surface water drainage from the site. Most building developments will be required to include Sustainable Drainage techniques within this strategy.
3. Producing a Drainage Strategy effectively means the drainage design will need to be completed in detail for the Planning Application.

4. An Assessment of Surface Water Runoff, Pol 03, provides up to THREE valuable credits towards the site's BREEAM assessment and replaces the previous Sur1/Sur2 of the now redundant Code of Sustainable Homes.
5. The flood information on the Environmental Agency website is only indicative and is often based on aerial surveys. These may be completely out of date or with insufficient detail to reflect the actual local situation. The EA will charge for detailed and specific level information.

6. Developing a solution to drainage and flooding issues will, as a minimum require:
   • A topographical survey of your site including levels
   • A search of local public sewer records
   • Flood information from the Environment Agency

7. To progress an engineering design solution further is likely to require a geographical survey with groundwater information and soakage tests. In extreme circumstances for very complex sites, flood route modelling may also be necessary.

8. There are many ways to enable building developments to take place in the flood plain. Our experienced team are able to quickly identify and advise the least cost, feasible solution that would be acceptable to the Environment Agency and the Local Authority.

Testimonial:

"The Stilwell Partnership's solution to the Drainage and Flooding issues at our Reigate development was invaluable. They successfully dealt with the complex objections raised by both the Local Authority and the Environment Agency in a thoroughly professional and efficient manner." Nigel Greenhalgh,
Managing Director,
Village Developments

Email or Phone

Contact us for a FREE Project appraisal and get a way to deal with your Drainage and Flooding problems.

We promise to deliver:

• A personal contact dedicated to dealing with your project
• Proven experience in finding least cost solutions
• The ability to deliver solutions to a deadline