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The Boston Globe

Metro

Callahan Tunnel to close for three months

The Callahan Tunnel will close for construction for three months at the beginning of next year, capping a convergence of projects scheduled for early 2014 that some fear will create a perfect storm of gridlock.

The 52-year-old tunnel, a key artery connecting central Boston to Logan International Airport, will close from the end of December until the end of March. The tunnel, which officials said has come close to becoming too dangerous for traffic, will receive a complete overhaul.

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