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Excavation Complete on NEBT Project in Washington, D C : CEG

Thu May 13, 2021 - Northeast Edition Lane Construction The Earth Pressure Balance Tunnel Boring Machine (TBM) “Chris” has completed the combined sewer outflow (CSO) tunnel being built to improve the water quality of the Anacostia River in Washington, D.C. Excavation of the Northeast Boundary Tunnel (NEBT) in Washington, D.C., a joint-venture project valued at $580 million being constructed by The Lane Construction Corporation and its parent company, Webuild Group (formerly Salini Impregilo), is complete. The Earth Pressure Balance Tunnel Boring Machine (TBM) Chris has completed the combined sewer outflow (CSO) tunnel being built to improve the water quality of the Anacostia River in Washington, D.C. The 23-ft. inside diameter tunnel was successfully completed with about 27,700 ft. excavated and 4,442 rings installed. The tunnel starts at RFK Stadium and ends at R Street, NW near downtown D.C.

Potomac River health drops to B-minus, conservancy reports

Potomac River health drops to B-minus, conservancy reports Published Sunday, Dec. 13, 2020, 1:53 pm Join AFP s 100,000+ followers on Facebook Purchase a subscription to AFP | Subscribe to AFP podcasts on iTunes News, press releases, letters to the editor: augustafreepress2@gmail.com By Whitney Pipkin (© Sean K – stock.adobe.com) After a decade of steady improvement, the Potomac River’s progress seems to be plateauing. That’s according to the latest letter grade a B-minus this year compared with a straight B two years ago issued to the river in a biennial report card measuring its overall health. The Potomac Conservancy, which released the 2020 Potomac River Report Card, said more polluted runoff from urban and suburban areas and fewer trees to slow and filter rainfall were among the factors causing the grade to slip. Based on data from 2018 and 2019, heavier-than-average rainfall likely played an outsized role in the outcome, too.

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