Boston, Massachusetts

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Adams Street Bridge (Suffolk County, Massachusetts)
Slab spans built 1765; arch spans added 1847; rehabilitated 2006
Stone bridge over Neponset River on Adams Street
Open to traffic

American Legion Highway Bridge (Suffolk County, Massachusetts)
Built 1931
Steel rigid frame bridge over Morton Street (MA 203) on American Legion Highway
Open to traffic

Anderson Memorial Bridge (Suffolk County, Massachusetts)
Built 1915
Closed-spandrel arch bridge over Charles River on North Harvard Street
Open to traffic

Blakemore Street Bridge (Suffolk County, Massachusetts)
Built 1882; rehabilitated 1950
Pony/through plate girder bridge over Amtrak/MBTA on Blakemore Street
Open to traffic

Boston Engine Terminal Bridge (Middlesex County, Massachusetts)
Warren through truss with sub-panels bridge over MBTA RR on MBTA RR
Open to traffic

Boston University Bridge (Suffolk County, Massachusetts)
Built 1928
Steel through arch bridge over Charles River on Brookline Street (MA 2)
Open to traffic

Charles River Bridge (Middlesex County, Massachusetts)
Built 1907
Concrete arch bridge over Charles River on MA 16 (Galen Street) in Watertown
Open to traffic

Charles River Bridge (Suffolk County, Massachusetts)
Built 1861; rehabilitated 2002
Concrete arch bridge over Charles River on MA 109 (Spring Street) in Boston
Open to traffic

Charlestown Bridge (Suffolk County, Massachusetts)
Built in 1900 to replace the Charles River Bridge which opened in 1786. It carried an elevated railway until it was demolished and re-routed in 1975.
Swing through truss bridge over Charles River on N. Washington Street in Boston
Open to traffic

Congress Street Bridge (Suffolk County, Massachusetts)
Built 1930; rehabilitated 2008
Bascule bridge over Fort Point Channel on Congress Street in Boston
Open to traffic

Grand Junction Railroad Bridge (Suffolk County, Massachusetts)
Deck plate girder bridge over Charles River on MBTA
Open to traffic

Granite Avenue Bridge (Suffolk County, Massachusetts)
Built 1959
Bascule bridge over Neponset River on Granite Avenue in Boston
Open to traffic

Hammond Street Bridge (Middlesex County, Massachusetts)
Built 1900; rehabilitated 1939
Pony truss bridge over Green Line on Hammond Street in Newton
Open to traffic

Harvard Bridge (Suffolk County, Massachusetts)
Built 1891; reconstructed 1990
Deck plate girder bridge over Charles River on MA 2A (Massachusetts Avenue)
Open to traffic

Jamaicaway Bridge (Suffolk County, Massachusetts)
Built 1936
Steel rigid frame bridge over St 9 Huntngton Ave on Jamaicaway
Open to traffic

John W. Weeks Bridge (Suffolk County, Massachusetts)
Built 1927
Closed-spandrel arch bridge over Charles River on a footpath at Harvard University
Open to pedestrians

Leonard P. Zakim Bunker Hill Memorial Bridge (Suffolk County, Massachusetts)
Built 2003
Cable-stayed bridge over Charles River on I-93/US-1 in Boston
Open to traffic

Longfellow Bridge (Suffolk County, Massachusetts)
Built 1906; rehabilitated 1959 and 2011
Steel arch bridge over Charles River on Mass. Hwy 3 (Cambridge Street) in Boston and Cambridge
Open to traffic

Morrissey Blvd. Bridge (Suffolk County, Massachusetts)
Built 1927; rehabilitated 1978
Bascule bridge over Dorchester Bay on Morrissey Blvd. in Boston
Open to traffic

Neponset River Bridge (Suffolk County, Massachusetts)
Built 1903; rehabilitated 1946
Concrete arch bridge over Neponset River on MA 28 (Blue Hill Avenue) in Boston
Open to traffic

New York, New Haven & Hartford Railroad Bridge (Suffolk County, Massachusetts)
Built 1899
Lost Warren through truss Scherzer rolling lift bascule bridge over Fort Point Channel on Railroad (Amtrak and MBTA)
Replaced by new bridge

North Beacon Street Bridge (Suffolk County, Massachusetts)
Built 1917
Concrete arch bridge over Charles River on US 20 (N. Beacon Street) in Boston
Open to traffic

Northern Avenue Bridge (Suffolk County, Massachusetts)
Built 1908
Pratt through truss bridge over Fort Point Channel on Northern Avenue
Open to pedestrians

Park Street Bridge (Suffolk County, Massachusetts)
Built 1900; rehabilitated 1974
Wooden bridge over MBTA on Park Street in Boston
Open to traffic

River Street Bridge (Suffolk County, Massachusetts)
Built 1883; rehabilitated 1990
Pony truss bridge over Amtrak on River Street in Boston
Open to traffic

River Street Bridge (Suffolk County, Massachusetts)
Built 1925
Closed-spandrel arch bridge over Charles River on River Street/Cambridge Street
Open to eastbound traffic

Sprague Street Bridge (Suffolk County, Massachusetts)
Built 1899; rehabilitated 1988; replaced 2008
Lost through truss bridge over MBTA on Sprague Street in Boston
Replaced by a new bridge

Summer Street over Fort Point Channel Bridge (Suffolk County, Massachusetts)
Built 1899, Rehabilitated 1918, 1952, 1959, 1967, 1990, and 1998.
Retractile deck plate girder bridge over Fort Point Channel on Summer Street
Open to traffic

Summer Street over Reserved Channel Bridge (Suffolk County, Massachusetts)
Built 1892; replaced 2003
Lost Pony/through plate girder bridge over Reserved Channel on Summer Street
Replaced by new bridge

Western Avenue Bridge (Suffolk County, Massachusetts)
Built 1924
Closed-spandrel arch bridge over Charles River on Western Avenue
Open to traffic