Instructions for using the online measurement tool to measure the distance between a potential Development of Regional Importance (DRI) and IDNR-designated critical streams and natural areas.

Projects within 100 yards of critical streams and natural areas as identified in the accompanying map may proceed with a DRI review by applying standard thresholds reduced by 50 percent.

You may estimate this distance using CMAP's DRI mapping application below.   

To expedite your application submittal, you may skip this task.  Simply indicate on your application that you would like CMAP to take this measurement for you and we will include the mapped materials with your submitted application.
 

Step 1: Open the DRI mapping application.

Click on the DRI mapping application to open and access the map.

 

Step 2: Use the measuring tool to calculate the distance from the feature.

 Zoom to a scale that permits you to clearly see both the nearest boundaries of the potential DRI and the critical stream or natural area of interest.

Choose the   Tools icon , then select Measure to display the measurement tool.

Select the Draw Line icon.

Center the cursor on one boundary and while holding down the left mouse button, drag the cursor to the other boundary. Release the left mouse button. You should choose locations on the boundaries of both features that appear to have a minimum distance between them.

Record the resulting distance, which is in yards, on your application.

 

Step 3. Refer to the DRI Help Document.

If you need further assistance with using the DRI mapping application, please refer to the DRI Online Measurement Tool Help Document.