Delta Hydro Studio
FreemiumVerified
Browser-based hydrology and hydraulics calculators for practising engineers — no install, report-ready output.
Urban Stormwater & InfrastructureActiveRational MethodCulvert Sizing
InfoWorks ICM
ActiveAutodesk's integrated catchment model — the heavyweight for large sewer networks and coupled 2D flooding.
by Autodesk (Innovyze)
- Pricing
- Commercial
- License
- Proprietary
- Commercial use
- Permitted
- Ecosystem
- Standalone, Ruby/Exchange scripting
- Platform
- Windows
About InfoWorks ICM
InfoWorks ICM (Integrated Catchment Modelling), now an Autodesk product from the Innovyze lineage, is the enterprise standard for large urban drainage and sewer models: full hydrodynamic network simulation coupled natively to 2D overland meshes, real-time control, water quality, and multi-user database-backed model management that large utilities rely on.
Where a city-scale combined-sewer model with dozens of contributing modellers is the job, ICM's model-management layer is the differentiator no open stack currently matches. It is priced accordingly; SWMM-based stacks remain the escape hatch for smaller scopes.
Where it fits in the workflow
TerrainCatchmentRainfallRunoffRoutingHydraulicsMappingReporting
Alternatives to InfoWorks ICM
Other urban stormwater & infrastructure tools covering similar workflow stages.
EPA SWMM
Gov-PublicVerified
The public-domain engine of urban drainage: dynamic-wave pipe networks, runoff, LID and water quality.
Urban Stormwater & InfrastructureActiveSWMMSewer Modelling
PySWMM
Open SourceVerified
Python interface to the SWMM engine — step through simulations, read state, and control gates in real time.
Urban Stormwater & InfrastructureActiveSWMMPython Hydrology
EPA National Stormwater Calculator
Gov-Public
EPA's free tool for estimating site runoff reduction from green infrastructure, with climate scenarios.
Urban Stormwater & InfrastructureStableSuDS & LID DesignStormwater Design
EPA SSOAP Toolbox
Gov-Public
EPA's toolbox for sanitary sewer overflow planning — RDII analysis with the SWMM engine underneath.
Urban Stormwater & InfrastructureDormantSewer ModellingSWMM
Generate SWMM inp (QGIS plugin)
Open Source
Build and read EPA SWMM models as QGIS layers — free GIS-based SWMM model construction.
Urban Stormwater & InfrastructureActiveSWMMQGIS Hydrology