Flood Risk Assessment Level 2

Lydney Level 2 Flood Risk Report

This study refines and builds upon the work undertaken in the Level 1 SFRA, which included an assessment of flood risk from all sources. There are numerous potential development sites in south-east Lydney and the Plummer’s Brook, a tributary of the River Lyd, flows in close proximity to these sites. The existing Flood Zone maps for this watercourse are course in nature and require improvement in order to appropriately guide the Sequential Test process, driving the need to undertake a Level 2 SFRA. This study, therefore, includes detailed modelling of the Plummer’s Brook to provide flood hazard information for a range of return periods. In addition, the study determines of the suitability of the potential development sites surrounding Lydney which may be taken forward to development in the future. Their suitability for development has been assessed against flood risk information, to assist the Council with the Sequential Test process. Relevant policies for the management of flood risk and appropriate development of flood risk areas along the Plummer’s Brook are also put forward. The Environment Agency has been consulted throughout the study to ensure that the approach is robust and meets best practice.

Please click on the links below to view these documents:

• Level 2 Strategic Flood Risk Assessment Plummer’s Brook, Lydney
• Appendix A
• Appendix B
• Appendix C

 View Flood Event Maps 

Cinderford Level 2 Flood Risk Report

The study refines and builds upon the work undertaken in the Level 1 SFRA, which included an assessment of flood risk from all sources. The need to undertake a Level 2 SFRA for Cinderford is driven by the need to refine the existing flood Zone information through Cinderford, so that informed decisions can be made on the location and nature of future development, considered as part of the Council’s Local Development Framework (LDF). The existing flood Zones have been derived from the Environment Agency’s national broadscale modelling and include some inaccuracies, including misalignments, which have required improvement in order to better inform the Sequential Test process, and where required, the Exception Test. This study therefore provides robust Flood Zones, as well as flood hazard information, for a range of return periods, in order to inform application of the Sequential and Exception Tests (by the Council). Relevant policies for the management of flood risk and appropriate development of flood risk areas in Cinderford are then put forward.

Please click on the links below to view these documents;

•   Forest of Dean District Council Strategic Flood Risk Assessment Cinderford Level 2 - September 2009 Report 

Appendices to main report

• Appendix A - Sequential & Exception TestAppendix A
• Appendix B - Hydrological Method
• Appendix C - Cinderford Brook Maximum Stage Results
• Appendix D1 - Sensitivity Analysis Results
• Appendix D2 - Sensitivity Analysis Results
• Appendix D3 - Sensitivity Analysis Results
• Appendix E - See Cinderford Brook Level 2 SFRA Flood Zone Maps
• Appendix F - Cinderford Proposed Development Sites
• Appendix G - Environmental Agency Sign-Off Latter

View Flood Event Maps  

• Cinderford Level 2 SFRA Flood Extents Map - Flood Zones 2, 3a, & 3b
• Hazard Map - (20 Year Flood Event) Outline
• Hazard Maps - (100 Year Flood Event) Outline
• Hazard Map (100 Year Plus Event) Outline 
• Hazard Map (1000 Year Flood Event) Outline

View Interactive Maps

• Hazard Mapping
• Flood Zones