Delta Hydro Studio
Browser-based hydrology and hydraulics calculators for practising engineers — no install, report-ready output.
Pandas-powered reading, editing and version-diffing of SWMM models — the model-management side of the stack.
Install
pip install swmmioWhere PySWMM drives the engine, swmmio handles the model files: it parses INP models into pandas DataFrames and GeoDataFrames, lets you edit networks programmatically, generates versions and scenario variants, and renders quick network visualisations. Comparing two model versions element-by-element — painful in a GUI — is a one-liner.
For utilities managing large SWMM models or consultants running scenario matrices, swmmio turns model administration into reproducible code. It composes naturally with PySWMM in the same script.
Other urban stormwater & infrastructure tools covering similar workflow stages.
Browser-based hydrology and hydraulics calculators for practising engineers — no install, report-ready output.
The public-domain engine of urban drainage: dynamic-wave pipe networks, runoff, LID and water quality.
Python interface to the SWMM engine — step through simulations, read state, and control gates in real time.
EPA's free tool for estimating site runoff reduction from green infrastructure, with climate scenarios.
EPA's toolbox for sanitary sewer overflow planning — RDII analysis with the SWMM engine underneath.
Build and read EPA SWMM models as QGIS layers — free GIS-based SWMM model construction.