TUFLOW FV model mesh

For scheme designers

Helping you demonstrate flood risk changes

Over the last ten years planners and agencies have demanded more and more evidence to demonstrate how proposed schemes affect flood risk. Developers and scheme designers need to show that flood risk is not increased in any location—not just locally to the scheme but also for considerable distances downstream. Hydraulic modelling is often the only cost-effective method to provide enough evidence that meets local authorities and government agencies increasingly stringent criteria. We provide a complete hydraulic modelling service. Our expert hydrologists, engineers and scientists can use a combination of UK-standard and bespoke methods which allow us to provide a much better understanding of flood risk to planners, you and the rest of your design team.

Holistic Analysis

How we build Hydraulic Models

Our hydraulic models are tailored to your project to ensure that they directly address all of the factors that affect flood risk for your scheme. We:-

  • Use the latest UK-accepted hydraulic modelling and hydrological analysis software
  • Take a holistic approach, including all known sources of surface water, fluvial and tidal flood risk that could affect your scheme
  • Can incorporate bespoke, site-specific hydrological and hydraulic analyses when required
  • Can be used to support planning or permitting for all sizes and types of development, including schemes such as low-head hydro and river restoration
  • Are routinely accepted by the Environment Agency and National Resources Wales to demonstrate flood risk for planning purposes

What is a Hydraulic Model?

Hydraulic models use computer simulation to assess the flood risk associated with different proposed schemes. They are routinely used to demonstrate to planners and national bodies such as the Environment Agency and National Resources Wales that there is a scientific, evidence-led basis behind the flood risk assessments that are required as part of the planning process. The models use long-term statistics about rainfall, sea levels and river flows alongside detailed physics-based simulations of how water moves across the landscape to predict the probability of flooding and how this flood risk could be changed by proposed new developments or other land-use changes.

Hydraulic Modelling

Do I need it?

Often, hydraulic modelling is associated with flood risk assessments or flood consequence assessments for proposed new developments, and if your scheme is within or close to flood zones, it is probable that hydraulic modelling will be required to demonstrate that it is flood free. Many developers engage with hydraulic modelling at an earlier stage, however: developments that surround or are next to a watercourse can often incorporate flood risk benefits or river restoration to improve the benefit from, and amenity value of, the scheme. Oftentimes, early flood risk and hydraulic modelling analysis can show that potential flood routes can be mitigated, managed or even removed from the site, improving local flood risk and increasing the area available for development.

Confidence in Knowledge

What Our Clients Say

“The time spent in explaining the methodology of some of the more complex aspects of the process was really useful (speaking as a “common or garden” variety of engineer) and went a long way to boosting confidence in the results. It’s about spending more time explaining what you do rather than just doing it.”

Mark Roberts, Gwynedd Consultancy

Pont Briwet 3D - 2011

If you need a hydraulic model or want to discuss how hydraulic modelling could be used to benefit your proposed development or scheme, contact us to discuss your requirements.

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Registered Address: 30 Queen Charlotte Street, Bristol BS1 4HJ, UK