Flood Modelling

Waterco have an extensive track record of producing comprehensive 1D and 2D hydrodynamic modelling of watercourses, rivers, culverts and floodplain areas using a range of industry standard hydrodynamic software packages e.g. MIKEFlood, Isis, TuFlow and Hec-Ras.

Flood Risk Assessments, on Environment Agency advice, increasingly have to be accompanied by such hydrodynamic models. Depending on which flood zone category a development is located, both PPS25 and TAN15 suggest the watercourses and structures potentially affecting the flooding of a site be modelled to confirm or provide more detail than is available within the existing EA flood maps. This often involves a Flood Map Challenge.

We use site specific models to predict flood depths, velocities, inundation rates and flood hazard ratings to support a number of flood risk scenarios, such as;

River Modelling
Overland Flows during exceedance events
Breach Assessments
Hazard and Vulnerability Mapping
Flood Zone Reclassification

Following an initial scoping study to agree parameters with the EA, we provide a full modelling report complete with flood extents, tabulated results and site specific hazard ratings. Often animation tools are used to present these outputs allowing the flood risk to the development to be suitably appraised. A DVD of such animations can be produced on request.

We pride ourselves on our level of service and could offer you the following benefits;