What is a Flood Risk Assessment?
A Flood Risk Assessment, also referred to as a FRA, is a report which considers the proposed use of a site and assesses the potential flood risk posed to that site from multiple sources of flooding including:
Rivers (Fluvial)
The Sea (Tidal)
Surface Water / overland flow (Pluvial)
Groundwater
Sewer Surcharge
Reservoir Failure
Each Flood Risk Assessment is a bespoke report tailored to identify the sources of flood risk at a specific site, and outlines potential mitigation measures which would be suitable to incorporate within the proposed development.
The assessment of flood risk posed to a site is based on information collected from a number of third party sources including, but not limited to, the Environment Agency, Local Authority documents (eg. Strategic Flood Risk Assessments and Surface Water Management Plans) and Government flood maps. Should any flood risk be identified at a development site, appropriate flood mitigation measures such as setting of finished floor levels and safe access/egress routes will be recommended compliant with the National Planning Policy Framework (NPPF) guidance.
Do I need a Flood Risk Assessment?
In accordance with the National Planning Policy Framework (NPPF) and Environment Agency (EA) guidance, a Flood Risk Assessment is required to accompany a planning application when a development site is:
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- located within flood zones 2 or 3 including minor development and change of use
- more than 1 hectare (ha) in size and is located in flood zone 1
- less than 1 ha in flood zone 1 and
- includes a change of use in development type to a more vulnerable class (for example from commercial to residential), and
- the development could be affected by sources of flooding other than rivers and the sea (for example from surface water or reservoirs)
- Located within flood zone 1 however, has been identified to have critical drainage problems by the Environment Agency
- In addition to the above, a Flood Risk Assessment is also generally required when a development is proposed within 20 metres of an EA main river or EA flood defence.
Our consultants have completed hundreds of Flood Risk Assessments, for both commercial and residential developments, throughout England and Wales helping developers achieve planning approval. If any of the above scenarios apply to your development site, do not hesitate to get in touch and one of our dedicated team will be able to help.
About us
Shell Civil & Infrastructure Ltd is a leading drainage design and infrastructure consulting firm based in the United Kingdom. With our extensive experience and expertise in the field, we provide innovative and sustainable solutions for all your drainage and infrastructure needs.
Our team of highly skilled professionals is committed to delivering exceptional results, ensuring that your projects are completed on time and within budget. We pride ourselves on our attention to detail, quality craftsmanship, and dedication to client satisfaction. Whether you require drainage design, infrastructure consulting, or both, you can trust Shell Civil & Infrastructure Ltd to deliver outstanding results.
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