Subway

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Broad Street Bridge (Monroe County, New York)
Built 1836
Stone arch bridge over Genesee River on Subway Tunnel in Rochester
Open to traffic

Cincinnati Subway System (Hamilton County, Ohio)
Built 1920
Abandoned tunnel on Cincinnati Subway
Abandoned. Never Operational

Lowline Park (Proposed) (New York County, New York)
Built 1908; Abandoned since 1948
Abandoned tunnel on Formerly Brooklyn-Manhattan Transit Corporation
Abandoned

Manhattan Bridge (New York County, New York)
Opened to traffic December 31, 1909
Suspension bridge over East River in New York City
Open to seven lanes of highway traffic and four subway tracks

MBTA - Adams Street Overpass (Suffolk County, Massachusetts)
Built 1911, converted to transit use 1926
Pony/through plate girder bridge over Adams Street on MBTA Red Line - Ashmont Branch
Open to traffic

MBTA - Boylston Street Overpass (Middlesex County, Massachusetts)
Built 1917; abutments date to 1885
Pony/through plate girder bridge over Boylston Street on MBTA Green Line
Open to traffic

MBTA - Dorchester Avenue Overpass (Suffolk County, Massachusetts)
Built 1911, converted to transit use 1926
Steel stringer bridge over Dorchester Avenue on MBTA Red Line - Ashmont Branch
Open to traffic

MBTA - Geneva Avenue Overpass (Red Line) (Suffolk County, Massachusetts)
Built 1928
Deck plate girder bridge over Geneva Avenue on MBTA Red Line - Ashmont Branch
Open to traffic

MBTA - Southampton Street Yard Overpass (Suffolk County, Massachusetts)
Double-intersection Warren through truss bridge over Track 61 (Seaport Branch) on MBTA Red Line Cabot Yard Lead
Open to traffic

NYCTA - 53rd Street Tunnel (New York County, New York)
Built 1932
Tunnel under East River on IND Queens Boulevard Line
Open to traffic

NYCTA - Concourse Tunnel (New York County, New York)
Built 1932
Tunnel under Harlem River on IND Concourse Line
Open to traffic

NYCTA - Cranberry Street Tunnel (New York County, New York)
Built 1932
Tunnel under East River on IND Eighth Avenue Line
Open to traffic

NYCTA - Culver Viaduct (Kings County, New York)
Built 1929
Truss bridge over Gowanus Canal/2nd Avenue/3rd Avenue/4th Avenue on New York City Transit Authority
Open to traffic

NYCTA - Fort George Tunnel (New York County, New York)
Built 1903
Tunnel on New York City Transit Authority
Open to traffic

NYCTA - Greenpoint Tube (Queens County, New York)
Built 1932
Tunnel under Newtown Creek on New York City Metropolitan Transit Authority
Open to traffic

NYCTA - Manhattan Valley Viaduct (New York County, New York)
Built 1904
Steel arch bridge over Manhattan Valley on IRT West Side Line
Open to traffic

NYCTA - Rutgers Street Tunnel (New York County, New York)
Built 1932
Tunnel under East River on New York City Transit Authority
Open to traffic

PATH - Hackensack River Bridge (Hudson County, New Jersey)
Built 1930
Through truss lift bridge over Hackensack River on Railroad
Open to traffic

Williamsburg Bridge (Kings County, New York)
Opened to traffic December 19, 1903
Suspension bridge over East River on Delancey Street in New York
Open to traffic