Example of 3D flood risk modelling. We are one of
six consultants helping to deliver the Environment Agency's flood
management programme in England and Wales through their National
Strategic Flood Risk Management Framework
Mott MacDonald assists local planning authorities and
environmental regulators (such as the Environment Agency and
Scottish Environmental Protection Agency (SEPA)) with the strategic
assessment of flood risk, providing a risk-based approach to
sustainable development.
Strategic Flood Risk Assessments (SFRA) support planning
authorities’ decision making processes and development plan
preparation, as well as providing them with a sound and defensible
rationale for planning decisions.
We have undertaken SFRAs for a number of local authorities,
including South Cambridgeshire, Huntingdonshire and Breckland
District Councils; Cambridge, Maidstone and Leicester City
Councils; and, Medway Council in order to determine the detailed
risk of flooding within their areas. The outputs from these studies
are incorporated into planning documents, and meet the requirements
of UK Government’s Planning Policy Statement 25 (PPS25) and
associated guidance.
Strategic assessments:
SFRAs are used by local authorities to:
- assist the development of their Local Development Frameworks by
identifying flood risk areas;
- make sustainable planning and land allocation decisions;
and,
- integrate flood risk management into spatial planning.
And by the Environment Agency to identify:
- areas at risk of flood; and,
- risks of residual flooding from breaches in flood
defences.
Flood mapping:
Key deliverables of SFRAs are flood risk maps and flood zone maps.
Mott MacDonald is highly skilled at producing such maps, which show
a calculated extent of flooding, and enable planners to make quick
decisions. Our flood inundation and hazard maps combine digital
terrain modelling and hydrodynamic modelling (water levels) in a
GIS, which show areas of flooding, depth and maximum flow velocity.
These can be produced for real time scenarios as animations of dam
break or other flood event.
Our services include
- Design of mitigation works
- Environmental appraisal
- Flood risk assessment
- Flood risk mapping
- Hydrological analysis
- River and drainage system modelling
