Flood modelling services

Flood modelling services and flood risk mapping for planning decisions.

Connect terrain, rainfall, catchment response, drainage constraints and exposed assets into inundation maps and reports that make flood risk easier to review.

Discuss a flood study Read the workflow

Flood modelling hydrology map and rainfall analysis — **Hydrology**Rainfall, catchments, runoff and outlet context.

Flood risk mapping inundation workflow — **Inundation maps**Depth, exposure and decision layers.

Asset flood exposure and risk screening — **Asset exposure**Priority locations and confidence notes.

Flood study inputs

A useful flood model starts with the decision, geography and available evidence. We document data quality before translating results into recommendations.

DEM preparation and terrain review
Catchment delineation and drainage analysis paths
Rainfall, IDF and design-storm assumptions
Land cover, imperviousness and runoff context
Structures, roads, outlets and local constraints

Modelling and mapping

Workflows can range from rapid flood susceptibility screening to deeper hydrologic and hydraulic modelling support depending on the risk, budget and data.

Rainfall-runoff and hydrograph preparation
HEC-HMS-style hydrologic workflows
1D/2D hydraulic modelling support
Flood extent, depth and affected-asset maps
Sensitivity and uncertainty notes

Decision outputs

Outputs are built for review, not just presentation. Assumptions, scenarios and limits remain visible so teams can validate the next step.

Flood risk reports and planning notes
GIS layers for inundation mapping and exposed assets
Drainage constraint and outlet maps
Site or portfolio-level flood screening
Climate risk assessment context where flood, heat or water stress matters
Recommended field or engineering validation

Need flood risk evidence for a site or portfolio?

Send the boundary, assets, catchment, rainfall context or planning question and we will scope the right level of flood modelling.

Discuss the requirement