Central Artery/Tunnel (CA/T) Project Environmental Permittingby Jeffrey M. Paul,
Abstract: The Central Artery/Tunnel Project is one of the largest public infrastructure projects in the United States. As such it poses major environmental planning and design challenges. The environmental permitting effort began in 1989, preceding actual construction which commenced in 1991 and will continue until 2004. The $7.9 billion project includes replacement of a decaying, over-capacity six-lane viaduct with an enlarged state-of-the-art eight-to-ten-lane underground expressway through the heart of downtown Boston, Massachusetts. The northern limit of the Project will be reached via a landmark cable-stayed bridge spanning the Charles River from Boston into Charlestown and Somerville. In addition, the Project includes design and construction of a new four.lane immersed tube tunnel (the Ted Williams Tunnel) under Boston Harbor and a 3.9 mile extension of the Massachusetts Turnpike through South Boston to Logan Airport. The Harbor tunnel opened to commercial traffic in December, 1995.
Subject Headings: Environmental issues | Tunnels | Cables | Cable stayed bridges | Highways and roads | Underground construction | Ports and harbors | Infrastructure | North America | United States | Massachusetts | Boston
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