DigIndy Tunnel

DigIndy Tunnel

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Citizens DigIndy Tunnel

A Watershed Change

The DigIndy Tunnel System is a network of tunnels bored into the bedrock 250 feet below the City of Indianapolis. The 28-mile long system will collect combined sewer overflows (CSO) into local waterways by 97% in compliance with the U.S. EPA Consent Decree. Overall, the $2B system-wide investment will dramatically improve water quality in the City’s urban streams and rivers.

Thinking Green

Guidon has been involved in a number of components of this massive project, including the Lower Pogues Run Tunnel, Upper Pogues Run CSO Reduction, Pleasant Run Tunnel, green infrastructure at Ross Claypool Park, and  CSO 033. In 2015, the CSO 033 storm sewer separation project received the Indianapolis Sustainability Award for Economics based on project cost savings through green infrastructure.


Citizens Energy Group


Indianapolis, IN


Campus Infrastructure


Civil Engineering, Sustainability Consulting