1
Site & Development
2
Flood Risk Sources
3
Drainage Strategy
4
Residual Risk
5
Summary & Export
Step 1: Site & Development Details
Help & guidance: complete each step in order. Tooltips and placeholders offer info on what each field expects. For further help on Flood Zones, Vulnerability Classification and Sequential/Exception Tests, refer to the National Planning Policy Framework (NPPF) Flood Risk Guidance and the Environment Agency's Flood risk assessments: climate change allowances (2022). Your inputs auto-save to this browser.
Project Information
Site Address & Authority
Site Parameters
Step 2: Flood Risk Assessment
Flood Risk Source Assessment
Check each applicable source and assess risk level.
Sequential & Exception Tests
Step 3: Surface Water Drainage Strategy
Runoff Rates (m³/s)
Enter values from Greenfield and Attenuation calculators.
Pre-Development Runoff
Post-Development Runoff
Betterment: Not calculated
SuDS Components Used
Water Quality & Treatment
Climate Change Allowance
Step 4: Residual Risk & Management
Exceedance Flow Path
Flood Safety
Maintenance & Adoption
Step 5: Summary & PDF Export
FRA Compliance Summary
| Compliance Check | Status | Details |
|---|---|---|
| Sequential Test | ||
| Exception Test | ||
| Betterment Achieved | ||
| Interception Storage | ||
| Climate Change | ||
| Treatment Train | ||
| Exceedance Management |