Traveling through the tunnel
Photo taken by Nick Boppel
BH Photo #470078
One of two tunnels carrying the East Boston Expressway under Boston Harbor between downtown Boston on the MA mainland and Logan International Airport, located on a peninsula jutting out into Massachusetts Bay. The Sumner Tunnel carries two lanes of westbound/inbound traffic, while the parallel Callahan Tunnel carries two lanes of eastbound/outbound traffic. Prior to the construction of the Callahan Tunnel, the Sumner Tunnel carried one lane of traffic in each direction.
The Callahan, Sumner, and Ted Williams Tunnels, as well as the Tobin Memorial Bridge and the Massachusetts Turnpike are operated under the jurisdiction of the Massachusetts Turnpike & Bridge Authority (MTBA), which, although no longer its own independent agency (it is now a component of MassDOT), is still considered to be a separate entity from MassDOT overall.
- Tunnel under Boston Harbor on East Boston Expressway (MA 1A)
- Boston, Suffolk County, Massachusetts
- Open to traffic
- Built 1934; Converted to one-way westbound traffic in 1961
Total length: 5,697.1 ft. (1.1 mi.)
Deck width: 22.2 ft.
Vertical clearance above deck: 12.6 ft.
Eligible for the National Register of Historic Places
- Also called
- William H. Sumner Tunnel
- Approximate latitude, longitude
- +42.36758, -71.04752 (decimal degrees)
42°22'03" N, 71°02'51" W (degrees°minutes'seconds")
- Approximate UTM coordinates
- 19/331404/4692620 (zone/easting/northing)
- Inventory number
- BH 88967 (Bridgehunter.com ID)
- April 12, 2020: New photo from Nick Boppel
- Nick Boppel - nickboppel01 [at] gmail [dot] com