Tunnel Business Magazine

DEC 2018

TBM: Tunnel Business Magazine is the market leader for North America. TBM is written for leading professionals in all aspects of tunneling and covers project stories, design elements, contracting strategies, legal issues, new technology and more.

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Page 19 of 59

TUNNELINGONLINE.COM 2 0 TBM: TUNNEL BUSINESS MAGAZINE // DECEMBER 2018 F E AT U R E S T O R Y The Anacostia River Tunnel project (ART) is the second in a series of four tunnels that comprise the DC Water's Clean Rivers Project, which is intended to reduce the ongoing pollu- tion of waterways in the Washington, D.C., area – chiefly the Anacostia and Potomac rivers and Rock Creek. The project will help to alleviate combined sewer over- flows that, when originally constructed years ago, were designed to discharge directly into the waterways during heavy storms. The Anacostia River Tunnel is 23 ft (7.01 m) in diameter, is approximately 12,500 ft (3,810 m) in length and extends from Robert F. Kennedy (RFK) Stadium in northeast D.C. to Poplar Point in southeast D.C. In addition to the tunnel construction, DC Water has been building surface facilities to divert the combined sewer over- flows to the tunnel at various sites along the I-295 corridor Street SE and the Southeast Freeway. These facilities include deep shafts that range from 20 to 60 ft (6.1 to 18.3 m) wide and large concrete structures to divert raw sewage from be- ing discharged to the Anacostia River during times of heavy storm runoff. The construction of these facilities is the largest project of its kind since the construction of the original D.C. sewer sys- tem in the early 1900s. The Anacostia River Tunnel will connect with the Blue Plains Tunnel, the first of DC Water's large tunnel projects to break ground, at Poplar Point and deliver captured combined sewer overflows to the Blue Plains Advanced Wastewater Treatment Plant for treatment prior to discharge to the Po- tomac River. Upon completion of this first phase of the DC Water's Clean Rivers Proje ch 2018, combined sewer over- flows to the Anacostia River will be reduced by 81 percent. A critical piece of equipment for the project was the tunnel b ostia River T name oughs, an African- American educator and civil rights activist, who founded the tional Training School for Women and Girls in Washing- ton, D. d "Lady Bird" (named for Lady Bird Johnson, wife of former President Lyndon Johnson, and already in action on the project) and began mining the tunnel on O omplete . 5, 2016, slightly more than one year later. Assisting the Anacostia River Tunnel MAPEI Underground Technology Team Aids in Project Completion

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