12 votes

Leonard P. Zakim Bunker Hill Memorial Bridge


From the north bank

Photo taken by Nathan Morton in Aug. 09


BH Photo #145681

Street View 


Cable-stayed bridge over Charles River on I-93/US-1 in Boston
Boston, Suffolk County, Massachusetts, and Middlesex County, Massachusetts
Open to traffic
Built 2003
- Christian Menn
- FIGG Engineering Group of Tallahassee, Florida
- Howard, Needles, Tammen & Bergendoff Corporation of Kansas City, Kansas
- Parsons Brinckerhoff of New York City, New York
- Rosales + Partners of Boston, Massachusetts.
- Ruchu Hsu
- Theodore Zoli
- W. Denney Pate
The Leonard P. Zakim Bunker Hill Memorial Bridge was the widest cable-stayed bridge in world at 183 ft (55.7m) when it opened in 2003 as part of the "Big Dig" project. It serves as the northern entrance and exit to the city of Boston and terminates at the entrance to the Thomas P. "Tip" O'Neill Jr. Tunnel. The two towers are built to represent the Bunker Hill Monument that stands close-by in Charlestown. It provides a total of 8 lanes of north-south traffic plus an additional 2 lanes of an access ramp that is attached via a cantilever connection.
Length of largest span: 745.0 ft.
Total length: 1,432.0 ft.
Deck width: 183.0 ft.
Also called
Zakim Bridge
Bunker Hill Bridge
Approximate latitude, longitude
+42.36875, -71.06319   (decimal degrees)
42°22'07" N, 71°03'47" W   (degrees°minutes'seconds")
Approximate UTM coordinates
19/330117/4692781 (zone/easting/northing)
Quadrangle map:
Boston South
Average daily traffic (as of 2010)
Inventory numbers
MA B16600 (Massachusetts bridge number)
BH 39928 (Bridgehunter.com ID)
Inspection report (as of October 2017)
Overall condition: Fair
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Deck condition rating: Satisfactory (6 out of 9)
Sufficiency rating: 79 (out of 100)
View more at BridgeReports.com

Update Log 

  • June 4, 2020: New photo from Patrick Gurwell
  • November 14, 2017: New photos from Christopher Finigan
  • November 7, 2013: New Street View added by J.P.
  • August 25, 2009: New photos from Nathan Morton
  • February 17, 2009: Added by Joe Herrington


  • Joe Herrington
  • Nathan Morton - morton890 [at] yahoo [dot] com
  • Wikipedia
  • J.P. - wildcatjon2000 [at] gmail [dot] com
  • Christopher Finigan
  • Patrick Gurwell - pgurwell [at] gmail [dot] com