Three Rivers Protection & Overflow Reduction Tunnel
Start of works
Data updated to april 2021
The Three Rivers Protection & Overflow Reduction Tunnel (3RPORT) is a combined sewer overflow (CSO) tunnel project located in Fort Wayne, Indiana.
It includes a deep rock tunnel, drop shafts and consolidation sewers to collect and convey CSO from eight locations along the St. Mary and Maumee Rivers. Once completed, the CSO tunnel system will reduce 90% of combined sewage overflows into the rivers, which occur during large rain storms.
Benefits and advantages of the work
Combined sewage conveyed (m3/year)
People in the catchment area
Ground-breaking ceremony for $188m Indiana tunnel contract