EPA SWMM
Gov-PublicVerified
The public-domain engine of urban drainage: dynamic-wave pipe networks, runoff, LID and water quality.
Urban Stormwater & InfrastructureActiveSWMMSewer Modelling
12 tools · Collection
The SWMM Ecosystem
Like EPANET, SWMM’s public-domain status turned one model into an entire ecosystem: the EPA engine at the core, PySWMM and swmmio for scripting and model management, swmmtoolbox for output extraction, a QGIS plugin for GIS-based model building, PCSWMM as the commercial productivity layer, SSOAP for sanitary I/I analysis, SWMM-CAT for climate adjustment and NetSTORM for the rainfall statistics that feed it all. If urban drainage is your work, this collection is the map of the territory.
PySWMM
Open SourceVerified
Python interface to the SWMM engine — step through simulations, read state, and control gates in real time.
Urban Stormwater & InfrastructureActiveSWMMPython Hydrology
swmmio
Open Source
Pandas-powered reading, editing and version-diffing of SWMM models — the model-management side of the stack.
Urban Stormwater & InfrastructureActiveSWMMPython Hydrology
swmmtoolbox
Open Source
Python CLI and library for extracting time series from SWMM binary output files.
Urban Stormwater & InfrastructureStableSWMMPython Hydrology
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
swmmr
Open Source
Run and read EPA SWMM from R — model execution, results import and GIS conversion on CRAN.
Urban Stormwater & InfrastructureDormantSWMMR Hydrology
PCSWMM
Commercial
CHI's commercial GIS front-end for SWMM — the most direct productivity upgrade for serious SWMM users.
Urban Stormwater & InfrastructureActiveSWMMSewer Modelling
EPA SSOAP Toolbox
Gov-Public
EPA's toolbox for sanitary sewer overflow planning — RDII analysis with the SWMM engine underneath.
Urban Stormwater & InfrastructureDormantSewer ModellingSWMM
SWMM-CAT
Gov-Public
EPA's Climate Adjustment Tool for SWMM — apply downscaled climate projections to rainfall and evaporation inputs.
Climate & Change AnalysisStableClimate ProjectionsSWMM
NetSTORM
Free
CDM Smith's free rainfall statistics and STORM-method screening model — IDF analysis, disaggregation, CSO planning.
Urban Stormwater & InfrastructureActiveIDF CurvesRainfall Data
MatSWMM
Open Source
MATLAB (and Python/LabVIEW) co-simulation with SWMM — built for real-time control research.
Urban Stormwater & InfrastructureDormantSWMMSewer Modelling
pystorms
Open Source
Benchmark scenarios for smart-stormwater control — test real-time control algorithms on curated SWMM systems.
Urban Stormwater & InfrastructureStableSWMMPython Hydrology