Strategic flood management
Along with the Local Flood Risk Management Strategy, we have produced a number of documents relevant both county-wide and for specific areas like Chesham, High Wycombe, Buckingham and Marlow.
Surface Water Management Plans
A Surface Water Management Plan (SWMP) is a plan which outlines the preferred surface water management strategy in a given location. In this context surface water flooding describes flooding from sewers, drains, groundwater, and runoff from land, small water courses and ditches that occurs as a result of heavy rainfall. As such, SWMPs deal with all local sources of flooding.
The purpose of SWMPs is to identify sustainable responses to manage surface water flooding and to prepare action plans for the areas concerned. The action plans will provide evidence upon which future decisions and funding applications for putting the recommendations into practice can be developed.
Buckinghamshire County Council has produced several SWMPs:
- A joint SWMP for Chesham and High Wycombe was written in 2011. Download the report and maps below.
- The first phase of a SWMP for Buckingham was completed in 2013. The first phase report can be downloaded below. Given the low risk of flooding from local sources in Buckingham (which however does suffer from main river flooding), it was decided not to proceed with the second phase report.
- The first phase of a SWMP for Marlow was produced in 2013, with the second phase report due to be completed during FY 2015/6. The first phase report can be downloaded below.
Preliminary Flood Risk Assessment
The Preliminary Flood Risk Assessment (PFRA) is a high-level review of past and potential future flooding events across the county and is the first step in developing a flood management strategy for Buckinghamshire.
The report looks at local sources of flood risk, primarily from surface runoff caused by intense rainfall, high groundwater levels and out of bank flows from ordinary watercourses. The report contains maps of past floods and indications of future flood risk and possible impacts on people and the environment. Download it below.
The PFRA is not intended for use as a source of information as to which properties are at risk of flooding. If you believe, or wish to ascertain, whether your property is at risk of flooding you must obtain independent advice or contact the Environment Agency.
Princes Risborough Groundwater Study
Princes Risborough has experienced a series of flood events in the past. Previous work has identified that groundwater contributed to these flood event. Probabilistic groundwater flood risk maps have therefore been produced to provide additional information to assist in flood risk management.
District Council Strategic Flood Risk Assessments
The National Planning Policy Framework (NPPF) requires that Local Plans should be supported by a Strategic Flood Risk Assessment (SFRA). The SFRA identifies areas that may flood, taking into account all potential sources of flooding. It is used to inform planning policies and assist Local Planning Authorities in directing new development to areas of lower flood risk and ensure that new development helps to manage flood risk. These SFRAs are produced by the district councils; click on the links below to access them.
- Aylesbury Vale District Council’s SFRA
- Chiltern District Council’s SFRA
- South Bucks District Council’s SFRA
- Wycombe District Council’s SFRA
- Princes Risborough Groundwater Study
- PFRA Preliminary Assessment Report (6.68 Mb)
- PFRA Preliminary Assessment Report Appendices (14.73 Mb)
- Preliminary Appendix D Spreadsheet (23 Kb)
- Chesham and High Wycombe SWMP (9.55 Mb)
- Chesham SWMP Map (3.87 Mb)
- High Wycombe SWMP Map (4.49 Mb)
- Buckingham Phase 1 SWMP (4.02 Mb)
- Marlow Phase 1 SWMP (7.25 Mb)
Last updated: 10 August 2018