In March 2018 the Salini-Impregilo Group will deliver, the DC Water and Sewer Authority the Anacostia River Tunnel project.

The Anacostia River Tunnel in Washington DC (USA) is part of the Clean Rivers project, whose objective is to reduce millions of litres of untreated water flowing into the Anacostia, Potomac and Rock Creek rivers, by constructing four tunnels. The Clean Rivers project should be completed in 2023.

The project received the Sustainability of the Year award last November, at  the 3rd edition of the ITA Tunnelling Awards 2017 in Paris. It won the award as it contributes to improving the quality of life in Washington DC the capital of the United States, making the city safer and putting it at the forefront in terms of environmental sustainability.

The tunnel, built within the Anacostia Project, connected to the Clean Rivers project network, contributes to reducing the volume of wastewater and runoff that flows into the Anacostia River by 98%. It also helps to reduce the probability of flooding in the Washington, D.C. area from 50% to 7%.

The tunnel is 7 m in inner diameter (23 feet) at a depth from 15 to 48 m (50 to 160 feet). Its passes under the Anacostia River, a railroad, a subway and an interstate highway.

Click here for a video and us/109 for tunnelbuilder archive. Visit http://www.dcwater.com and https://www.salini-impregilo.com. 04/18.