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Repository Overview: 1729-SWMM5-Models

This repository contains a wide range of SWMM5 input files and related documents for simulating hydrology and hydraulics across various projects. Below is a summary of the key directories:

Directories

  • 1000Years
    Contains long-term simulation models (e.g., 1000yearSimulation_Case0_wq.inp) and supporting files for extended period analyses.

  • Hydraulics
    Includes hydraulic model input files and configuration documents used in SWMM5 hydraulic simulations.

  • Hydrology
    Contains hydrologic model input files, rainfall data, runoff models, and analysis reports.

  • SWMM5_NCIMM
    Hosts SWMM5 models for NCIMM projects, featuring example files ranging from small-scale tests to large-scale simulations.

  • EPA
    Includes model files and documentation associated with EPA projects, as well as Extran Manual examples.

  • OWA_USER
    Contains user-specific simulation files and generated reports (e.g., files named with user1, user2, etc.).

  • LID
    Contains Low Impact Development (LID) simulation files and supporting documentation.

  • NCIMM_ROUTING
    Comprises routing model files and documentation used in advanced NCIMM routing analyses.

  • LEW_CHI_SWMM5.2
    Contains test cases and examples for the LEW/CHI SWMM5.2 implementation.

  • Special
    Contains special case models and scenarios, such as files addressing many isolated nodes or other unusual configurations.

  • DataFiles
    Houses external data files (e.g., rainfall data in .dat and .rff formats) that models use as input.

Root Directory Content

In addition to the above directories, the root folder includes:

  • Session files such as Session1_user1.*, Session29_292_Storage_Nodes_200_Subs.md, etc.
  • Configuration files like .gitattributes and LICENSE.
  • Batch files like generate_summaries.bat for automating summary generation and other tasks.

How to Use

  • Open any of the input files (for instance, 1000yearSimulation_Case0_wq.inp) to review project settings defined in sections like [OPTIONS], [SUBCATCHMENTS], and others.
  • Use the provided batch files to generate reports or summaries.
  • Detailed project documentation can be found within each directory’s files.

For more detailed information on individual files or directories, please refer to the corresponding documents in each folder.

License and provenance

This repository is dedicated to the public domain under The Unlicense (see LICENSE), matching EPA SWMM5's own public-domain status. Most models here are OWA SWMM5 example and regression models, EPA public-domain examples, or Bob's own XPSWMM-to-SWMM5 conversions. A handful of folders, including Greenville, Simon_EPA, and Special, are contributed or special-case models from colleagues; confirm provenance before assuming the same public-domain terms apply if you plan to redistribute those specifically

About

1,729 OWA SWMM5 test models covering LID, routing, and user networks. Built during the February 2026 Fixathon.

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