The Dig Indy project is a 28-mile-long network of 18-foot-diameter tunnels being built 250 feet under Indianapolis, making it the largest public works project in the city’s history. The project begins near the Indiana State Fairgrounds on the north side of the city and will end on the south side. The tunneling system will create a collective, underground storage and transport facility for wastewater. Work is being done by Shea-Kiewit Joint Venture using a tunnel boring machine built by The Robbins Company in the late 1970s that has since been rehabilitated. The first section of the tunnel is already dug
