Strategic Flood Risk Assessment
In line with national planning policy, the Council has undertaken a Strategic Flood Risk Assessment (SFRA) in order to inform future land use in the Borough.
The Council commissioned a comprehensive update of the SFRA in 2015. This consolidates and updates the previous assessments which were split into separate assessments for the River Bourne catchment and the River Wey catchment.
The update comprises of three volumes:
- Volume 1, the Decision Support Document- this sets out the relevant planning policy and provides guidance for planners and developers
- Volume 2, the Technical Report - this contains a technical analysis of flood risk from all sources and outlines potential flood risk management measures
- Volume 3 contains all the maps for the assessment.
Previous Strategic Flood Risk Assessments
There were updates to the earlier SFRA in February 2012:
- Potential Impacts of Climate Change on Flood Zone 3a
- River Bourne, River Wey and Hoe Stream Flood Zone 3b
The original SFRA was undertaken in two phases: a joint study with Surrey Heath which focuses on the River Bourne catchment and a study that focuses on the River Wey catchment. The documents are available below
Bourne Catchment SFRA
- River Bourne Summary Report
- River Bourne Main Report
- River Bourne Technical Report
- Appendix A: Risk Based Sequential Approach
- Appendix B1: Catchment Information
- Appendix B2: Catchment Information
- Appendix B3: Catchment Information
- Appendix C: Flood Zones Overview
- Appendix C: Flood Zones
- Appendix D: Actual Risk
- Appendix E: Residual Risk
- Appendix F: Hazard Maps
- Appendix G: Hydraulic Modelling
- Appendix H1: Flood Risk from the Basingstoke Canal
- Appendix H: Information from the Basingstoke Canal Authority
Wey Catchment SFRA
- River Wey SFRA - Volume 1: Decision Support Document
- River Wey - Volume 2: Technical Report
- Appendices (detailed mapping)
Note that Woking Borough does not have any critical drainage areas.