World's Largest Tunnel Outfall to Discharge 1300 Million Gallons Daily
The Boston Outfall is a massive tunnel being built off the coast of Boston to release treated wastewater. It will be the world's largest tunnel outfall, capable of discharging 1300 million gallons of water per day. The outfall uses advanced technology like seabed diffusers to minimize environmental impact. The construction of the tunnel and installation of diffusers are almost finished. This project is a crucial part of cleaning up Boston Harbor.