{"id":26226,"date":"2023-10-10T10:50:54","date_gmt":"2023-10-10T14:50:54","guid":{"rendered":"https:\/\/www.parsons.com\/?post_type=project&p=26226"},"modified":"2024-05-08T16:26:28","modified_gmt":"2024-05-08T20:26:28","slug":"anacostia-river-tunnel","status":"publish","type":"project","link":"https:\/\/www.parsons.com\/project\/anacostia-river-tunnel\/","title":{"rendered":"Anacostia River Tunnel Project \u2013 District Of Columbia (D.C.)"},"content":{"rendered":"\n
Our tunnel experts assisted the District of Columbia Water and Sewer Authority (DC Water) with implementing a long-term control plan (LTCP) for the Anacostia River Tunnel and its combined sewer system. <\/strong><\/p>\n\n\n\n Our LTCP consisted of a system of tunnels and diversion sewers for capturing combined sewer overflows (CSOs) to Rock Creek and the Anacostia and Potomac Rivers and conveying them for treatment at DC Water’s Blue Plains Advanced Wastewater Treatment Plant. Implemented under a federal consent decree between the United States, the District of Columbia Government, and DC Water, the LTCP was divided into several contract divisions. <\/p>\n\n\n\n The entire project will reduce CSOs by 96% annually throughout the system and by 98% for the Anacostia River alone. The new tunnel segment reduces CSOs to the Anacostia River by more than 80% and holds 40 million gallons of combined sewage.<\/p><\/div>\n\n\nOur Long-Term Control Plan (LTCP) <\/h3>\n\n\n\n