Hydro-Logic is now part of Hydro International.

Hydraulic Modelling


Hydraulic modelling enables the accurate estimation of water levels and flood extents for rivers and watercourses. Although flood extents are shown on the Environment Agency web site, this is often based on the use of generalised models. Detailed and site-specific modelling can be used to refine and challenge the flood maps. The models can also be used to estimate flow velocities and the associated flood hazard ratings.

Hydraulic models feature as part of Level 3 FRAs as well as contributing to more general assessments of flood risk.

HLS staff have developed numerous 1D and 2D hydrodynamic models of watercourses and floodplains. We use industry-standard software packages including HEC-RAS, ISIS and TUFLOW in our modelling assessments. These have been used for establishing design flood levels, flood map challenges, rating extension, hazard ratings, breach analysis and design of mitigation works.

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