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Are the Sumner and Callahan tunnels the same?

The Sumner Tunnel was opened on June 30, 1934. It carried traffic in both directions until the opening of the parallel Callahan Tunnel in 1961. The Sumner Tunnel is named for William H. Sumner, the son of Governor Increase Sumner.



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Where is the Sumner Tunnel? The Sumner Tunnel/Route 1A South, situated between East Boston and the North End, takes drivers from Logan Airport to I-93/ Boston and points north. Map of Boston displaying the locations of Sumner Tunnel, Callahan Tunnel, and Ted Williams Tunnel.

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Where is the Sumner Tunnel? The Sumner Tunnel/Route 1A South, situated between East Boston and the North End, takes drivers from Logan Airport to I-93/ Boston and points north. Map of Boston displaying the locations of Sumner Tunnel, Callahan Tunnel, and Ted Williams Tunnel.

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It was originally a two-way road that carried traffic in both directions, until the opening of the parallel Callahan Tunnel in 1961. The tunnel is 8,448 feet long, of which approximately 3,960 feet are underwater. In 2017, the state removed the tollbooths as part of a switch to electronic tolling.

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Opened to traffic June 30, 1934. It was originally a two-way road that carried traffic in both directions, until the opening of the parallel Callahan Tunnel in 1961. The tunnel is 8,448 feet long, of which approximately 3,960 feet are underwater.

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Since the Sumner Tunnel runs one way from Logan Airport to the North End, getting to the airport during the tunnel closure is not as challenging as getting from the airport. Most traffic will be detoured into the Ted Williams Tunnel and onto the Tobin Bridge to connect with Interstate 93.

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The Sumner Tunnel is undergoing a restoration that began in the spring of 2022. This work requires the tunnel to be closed to traffic periodically.

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If traveling to Logan Airport/ East Boston, continue using the Callahan Tunnel or the Ted Williams Tunnel.

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Weekends of November 10 and December 1, 2023 Over the course of these weekends, MassDOT will be installing precast ceiling panels, fire alarm conduits, concrete below the deck, radio and CCTV system components, and completing all cleaning operations required to open the tunnel by Monday morning.

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It carries motor vehicles from the North End to Logan International Airport and Route 1A in East Boston. Ordinarily, this tunnel is only used to carry traffic out of the city, and with the completion of the Big Dig it only collects traffic from I-93 southbound and downtown Boston.

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The Ted Williams Tunnel interface in East Boston between the land-based approach and the underwater section is 90 feet below the surface of Boston Harbor, the deepest such connection in North America. The project's seven-building ventilation system is one of the largest highway tunnel ventilation systems in the world.

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First, workers dredged a 50-foot trench along the floor of Boston Harbor. Then, 12 giant steel tubes, each 325 feet long and already containing roads, were dropped into the water. Once the tubes had been connected on the harbor floor, the tunnel was buried in a 5-foot protective layer of rock.

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What state is Sumner Tunnel SR-1A in? This toll is in Massachusetts. Which transponder can be used on Sumner Tunnel SR-1A? Only E-ZPass is supported for Sumner Tunnel SR-1A.

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The Central Artery/Tunnel Project (CA/T Project), commonly known as the Big Dig, was a megaproject in Boston that rerouted the Central Artery of Interstate 93 (I-93), the chief highway through the heart of the city, into the 1.5-mile (2.4 km) Thomas P. O'Neill Jr. Tunnel.

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Logan Express stops at all terminals. Scheduled times for departing Logan are shown for Terminal A. Departure from other terminals is a few minutes later. Travel time is approximately 30-45 minutes. Be sure to allow extra time during rush hour periods.

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