George Mitchell (WS Atkins)

Flood Risk Zone Mapping Project
Low Lying Areas in England and Wales - Vulnerable to Extreme Events
The Great Surge of 1953
Flooding in Uckbridge Autumn 2000
Anglian region - particularly critical
Major & Costly Flood Defence Works
Strategic Planning - Controlling Development in the Fluvial and Coastal Floodplain (PPG25)
Extent of the RZMP Project
Some theory ........
Building the 2D model topography
NextMap DEM 10k Tiles - Flown Now!
River Cross Sections and Centreline From Survey to Model
Location of 2D Models
Boundary Conditions Applied to Regional Models (For example the Wash)
Boundary Conditions from POL Models
2D model - 500m Grid - Wash, 1000 year - No Tidal Defences
Model Calibration
1000 year Flood Outline - Wash - No Flood Defences
Developments Completed