Red Flag Investigation

A Red Flag Investigation (RFI) is a quantitative analysis of infrastructure, water, hazardous materials, historical features, and other data within a half-mile of a proposed transportation project.The MPO has created a standard procedure for developing a RFI that is based on Indiana Map and other readily available datasets. The MPO has made available an interactive map and downloadable GIS file of the data used in developing RFIs for LPAs to see what environmental features or issues may be near a potential project.

The MPO's RFI process may help LPAs better understand what environmental features may impact a proposed project and thus lead to better scope and cost estimating development at the application stage. Contact Jennifer Dunn with questions.

The map file below includes data points used to create Red Flag Investigations, including:

  • HazMat
  • Historic Resources
  • Mining & Minerals
  • Infrastructure
  • Water Resources

Red Flag Investigation Map

To view the Red Flag Investigation Map:

  • Download the Red Flag folder
  • Unzip the folder to extract the KMZ file
  • Open the KMZ file in google earth on your computer

If you do not have Google Earth on your computer:

  • Download the Red Flag folder and save it to a location on your computer that can be easily found (desktop, local hard drive, etc)
  • Unzip the folder to extract the KMZ file
  • Go to and click “Launch Google Earth” on the home page
  • Click on the Menu tab in the top left corner of the screen, then select “My Places”
  • In My Places, click on “Import KML File.” It will prompt you to select a file from your computer (Open File…) or from Google Drive
    • Note: if “Import KML File” is not showing up when you are in “My Places,” Go to the select “Settings” in the Menu tab and be sure “Enable KML file import” is turned on.
  • Select “Open File…” and navigate to the location you saved the KMZ file in step 1. Then click “Open.” This will drop the file into Google Earth online line.

From there you can navigate between the different features and feature types identified in the Red Flag Investigation.