On February 21, 2024, excavation and lining work for the Pawtucket Combined Sewer Overflow Tunnel in Rhode Island, USA, was fully completed. The tunnel is located 38 m below the ground surface and is responsible for storing and conveying sewage overflow caused by heavy rainfall.

　　The sewage overflow will be conveyed to the Bucklin Point Wastewater Treatment Facility for full treatment and then discharged into Narragansett Bay. The Pawtucket Tunnel is Phase III of Rhode Island's Combined Sewer Overflow Tunnel Program. Phases I and II of the project were completed in 2008 and 2014, respectively.