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NEW | Scale up your modelling with the new Run licence to increase the number of concurrent simulations available across your entire organisation.

Flood Modelling

At the core of what we do

Flood Modeller has been developed to continuously improve modelling efficiencies and bring innovation to enable you to confidently and accurately model multiple sources of flooding.

Seamlessly model rivers, floodplains and urban drainage systems

Suitable for a wide range of modelling applications, from calculating simple backwater profiles to modelling entire catchments

Our powerful solvers are designed to be dynamically linked to provide accurate representation of flood risks

The intuitive GIS interface provides a wide range of model building tools, as well as pre- and post-processing operations

Flooding can be assessed using historical and real-time river, rainfall and sea level data, alongside data that represents the physical environment

Watch how it's done

Fast and accurate modelling

Whether you need to build a simple 1D model of a rural river channel, develop a 1D-2D linked model for an urban area, or undertake integrated catchment modelling which incorporates sewer networks and other drainage systems, Flood Modeller provides the functionality to meet your needs.

Flood Modeller can be applied to a wide range of engineering and environmental flood modelling applications.


Its industry-leading 1D river solver provides a comprehensive range of methods for simulating flows and levels in open channels, floodplains, reservoirs and estuaries. It provides more than 40 hydraulic structures, including numerous bridge, culvert and weir types. 

The latest hydrological methods are also provided as standard. Any hydrograph can be input to the software to take into account local hydrological methods. Direct rainfall inputs can also be applied.

Flood Modeller's 1D urban solver, based on US EPA SWMM, allows users to combine surface and subsurface flow to obtain a detailed and integrated understanding of flood risk in urban areas, directly within Flood Modeller’s powerful user interface. It enables users to develop integrated catchment and system-based solutions within a single software solution.


Flood Modeller provides a range of advanced 2D numerical engines, including our GPU solver which provides detailed 2D modelling results up to 96% faster. These are used to calculate water depth and ‘depth averaged’ velocity on a grid.

Access our comprehensive list of data sources and datasets to find out how to obtain the data you need to build different types of flood models.

Data sources to inform your flood models

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