Flood risk assessment

A Level 1 Strategic Flood Risk Assessment (SFRA) has been produced in accordance with Planning Policy Statement 25.

The SFRA assess and maps all forms of flood risk from groundwater, surface water, impounded water bodies, sewer, river and tidal sources to use as an evidence base to locate future development primarily in low flood risk areas. The outputs from the SFRA will also help us to prepare sustainable policies for the long-term management of flood risk.

Forest of Dean District Council Strategic Flood Risk Assessment - pdf - 1.74 Mb

Gloucestershire Flood Risk Assessment Executive Summary - pdf - 1.36 Mb

Appendix A Gloucestershire Flood Risk Assessment - pdf - 436 Kb

Appendix B Map Tile Index - pdf - 128 Kb

Appendix C Test Process - pdf - 132 Kb

Appendix D Flood Risk Zones - pdf - 355 Kb

Appendix E Pitt Review Recommendations - pdf - 52 Kb

Flood risk maps

Watercourse maps

Forest Of Dean Tile A1 - pdf - 3.28 Mb

Forest Of Dean Tile A2 - pdf - 3.24 Mb

Forest Of Dean Tile A3 - pdf - 3.72 Mb

Forest Of Dean Tile A4 - pdf - 4.26 Mb

Forest Of Dean Tile A5 - pdf - 3.61 Mb

Forest Of Dean Tile A6 - pdf - 3.55 Mb

Forest Of Dean Tile A7 - pdf - 2.92 Mb

Strategic flood risk maps showing flooding from all sources

Tile B1 - pdf - 2.66 Mb

Tile B2 - pdf - 2.96 Mb

Tile B3 - pdf - 2.81 Mb

Tile B4 - pdf - 3.45 Mb

Tile B5 - pdf - 3.12 Mb

Tile B6 - pdf - 2.79 Mb

Tile B7 - pdf - 3.63 Mb

Tile B8 - pdf - 3.15 Mb

Tile B9 - pdf - 2.65 Mb

Tile B10 - pdf - 3.28 Mb

Tile B11 - pdf - 3.37 Mb

Tile B12 - pdf - 3.41 Mb

Tile B13 - pdf - 4.05 Mb

Tile B14 - pdf - 3.70 Mb

Tile B15 - pdf - 2.96 Mb

Tile B16 - pdf - 3.42 Mb

Tile B17 - pdf - 3.97 Mb

Tile B18 - pdf - 4.21 Mb

Tile B19 - pdf - 3.97 Mb

Tile B20 - pdf - 3.78 Mb

Tile B21 - pdf - 4.24 Mb

Tile B22 - pdf - 3.86 Mb

Tile B23 - pdf - 3.08 Mb

Tile B24 - pdf - 3.53 Mb

Tile B25 - pdf - 4.57 Mb

Tile B26 - pdf - 3.21 Mb

Tile B27 - pdf - 2.51 Mb

Tile B28 - pdf - 3.61 Mb

Tile B29 - pdf - 4.56 Mb

Tile B30 - pdf - 2.70 Mb

Tile B31 - pdf - 3.54 Mb

Tile B32 - pdf - 2.20 Mb

Tile B33 - pdf - 3.32 Mb

Tile B34 - pdf - 2.18 Mb

Tile B35 - pdf - 3.16 Mb

Flood risk map showing flooding due to climate change

Tile C1 - pdf - 3.82 Mb

Tile C2 - pdf - 3.73 Mb

Tile C3 - pdf - 4.19 Mb

Tile C4 - pdf - 4.59 Mb

Tile C5 - pdf - 4.01 Mb

Tile C6 - pdf - 4.07 Mb

Tile C7 - pdf - 3.36 Mb

Geology maps

Tile D1 Solid Geology - pdf - 3.61 Mb

Tile D2 Drift Geology - pdf - 2.25 Mb

 Historic flooding

Tile E1 - pdf - 2.23 Mb

Tile E2 - pdf - 2.24 Mb

Tile E3 - pdf - 2.62 Mb

Tile E4 - pdf - 2.77 Mb

Tile E5 - pdf - 2.60 Mb

Tile E6 - pdf - 2.55 Mb

Tile E7 - pdf - 2.16 Mb

Flood warning

Tile F1 - pdf - 2.46 Mb

 

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. 

This study 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 developed in the future.

Strategic Flood Risk Assessment Plummers Brook Lydney - pdf - 1.06 Mb

Appendix A Sequential And Exception Tests - pdf - 65 Kb

Appendix C Environment Agency Letter - pdf - 23 Kb

Lydney flood risk maps

Outline Map View1 - pdf - 1.10 Mb

Outline Map View2 - pdf - 1.22 Mb

20 Year Flood Event View 1 - pdf - 1.22 Mb

20 Year Flood Event View 2 - pdf - 1.32 Mb

100 Year Flood Event View 1 - pdf - 1.22 Mb

100 Year Flood Event View 2 - pdf - 1.33 Mb

100Plus Year Flood Event View 1 - pdf - 1.22 Mb

100Plus Year Flood Event View 2 - pdf - 1.08 Mb

1000 Year Flood Event View 1 - pdf - 1.22 Mb

1000 Year Flood Event View 2 - pdf - 1.33 Mb

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. 

This study 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. Relevant policies for the management of flood risk and appropriate development of flood risk areas in Cinderford are then put forward.

Cinderford flood risk assessment and maps

Strategic Flood Risk Assessment Cinderford Report - pdf - 6.48 Mb

Cinderford Level 2 Sfra Flood Extents Map Flood Zones 2 3A 3B - pdf - 1.45 Mb

Appendix A Sequential Exception Test - pdf - 76 Kb

Appendix B Hydrological Method - pdf - 67 Kb

Appendix C Cinderford Brook Maximum Stage Results - pdf - 92 Kb

Appendix D1 Sensitivity Analysis Results - pdf - 137 Kb

Appendix D2 Sensitivity Analysis Results - pdf - 56 Kb

Appendix D3 Sensitivity Analysis Results - pdf - 55 Kb

Appendix F Cinderford Proposed Development Sites - pdf - 20 Kb

Appendix G Environmental Agency Sign Off Letter - pdf - 34 Kb

Flood Zones - pdf - 4.33 Mb

Hazard Mapping - pdf - 4.64 Mb

Hazard Map 20 Year Flood Event Outline - pdf - 1.75 Mb

Hazard Map 100 Year Flood Event Outline - pdf - 1.76 Mb

Hazard Map 100 Year Plus Event Outline - pdf - 1.76 Mb

Hazard Map 1000 Year Flood Event Outline - pdf - 1.76 Mb

Rapid Response Catchments

Following the Boscastle flooding in 2004 the Environment Agency modelled similar rainfall from that day, across the whole country.  As a result a number of areas have been identified that are at risk of a similar event occurring.  Two of these areas are in the Forest of Dean District;

• Drybrook, Cinderford Brook and Ruspidge
• Lydney

The Lydney Rapid Response Plan can be downloaded from the Lydney Town Council website.

The Cinderford Rapid Response Plan is available to download.

 

REDACTED Cinderford Brook Rapid Response Plan - pdf - 1.36 Mb

Related Pages

• Parish flood defences
• Flooding
• Local Plan evidence base