EPA SWMM to TUFLOW

Introduction

This page outlines some utilities that may be used to convert EPA SWMM model files into a format which is compatible with TUFLOW. The utilities are available for download from the TUFLOW website.
If you have any suggestions to be included in these pages, please contact support@tuflow.com.

Model Conversion Utility (swmm_to_gis.exe)

The swmm_to_gis.exe utility converts EPA SWMM files (.inp) to TUFLOW compatible GIS (mif and shp) format. The utility outputs include:

• T

Utility Execution

The utility requires GIS projection information to correctly translate the SWMM file (.inp) from format to *mif or *.shp format. This is done by including either a projection or header file in the same folder directory as the SDF file. The utility will use the projection information from this file for the data conversion.

1. mif format input requirement: Projection.mif or Header.mif
2. shp format input requirement: Projection.prj or Header.prj

The following error message will be produced if projection information is not available:

ERROR - A Header.prj or Projection.prj file does not exist in folder