Built 1856

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B&O - Woods Fork Creek Bridge (Scott County, Indiana)
Stone double arch bridge built by Irish Laborers in 1856
Abandoned deck arch bridge over Woods Fork creek on Baltimore and Ohio Railroad

Bank Street Covered Bridge 07-05-13x (New Haven County, Connecticut)
Built 1856; Replaced 1936
Lost Howe through truss bridge over Naugatuck River on Bank Street
Replaced by a new bridge

Berry Street Tunnel (Allegheny County, Pennsylvania)
Built 1851-1856; Converted to road use 1998
Tunnel on West Busway
Open to traffic

Bidwell Bar Suspension Bridge (original 1856 bridge) (Butte County, California)
Built 1856 using materials transported from Troy, NY; closed to traffic in 1954; relocated 1967
Relocated suspension bridge formerly over Feather River
Open to pedestrians

Carrollton Covered Bridge 48-01-02 (Barbour County, West Virginia)
Built 1856; rebuilt with concrete beam deck 1963; rehabilitated 2003, heavily damaged by arson August 10, 2017; reopened Sept. 14, 2017 with exposed superstructure
Burr Arch covered bridge over Buckhannon River on County Route 36

Crooks Covered Bridge 14-61-17 (Parke County, Indiana)
Built 1856, rebuilt 1867
Covered bridge over Little Raccoon Creek on CR225E
Open to traffic

CSX - Dewees Farm Overpass (Union County, Indiana)
Built 1856
Stone arch bridge over Private Farm Road on CSX Transportation
Open to traffic

CSX - Schuylkill River Viaduct (Philadelphia County, Pennsylvania)
Built 1853-56; Altered 1935
Stone arch bridge over Schuylkill River on CSX Railroad

DL - Nay Aug Tunnel (Lackawanna County, Pennsylvania)
The tunnel on the north, built in 1856, is currently active. The tunnel on the south, built in 1905, was damaged by a hurricane in 1955.
Tunnel on Delaware-Lackawanna Railroad
Open to traffic

DL&W - Manunka Chunk Tunnels (Warren County, New Jersey)
Built 1856, 2nd bore opened 1869, abandoned 1970
Abandoned tunnel on DL&W Old Road

Elm Tree Garden Bridge (Jefferson County, Kentucky)
Built 1856
Lost Bridge over Louisville & Portland Canal on 18th Street
Replaced by a new bridge

First Bridge (Rock Island County, Illinois)
Built 1856, Replaced 1866.
Lost howe through truss bridge over Mississippi River

Free Bridge (Lee County, Illinois)
Built 1856; Destroyed 1857
Lost Bridge over Rock River on Galena Avenue
Destroyed by flooding

Hooff's Run Bridge (Alexandria, Virginia)
Built 1856
Stone arch bridge over Hooff's Run on Jamieson Avenue
Open to traffic

Irondale Arch Bridge (Washington County, Missouri)
Built 1856
Stone arch bridge over Dry Creek on the Iron Mountain Railroad (now Union Pacific Railroad) in Irondale
Open to railroad traffic

Kennedy Covered Bridge 38-15-13 #2 (Chester County, Pennsylvania)
Built 1856; rehabilitated 1988
Through truss bridge over French Creek on Seven Stars Road
Open to traffic

Kilbourne Bridge (Oldest) (Sauk County, Wisconsin)
Built 1856; Replaced 1877
Lost Howe deck truss bridge over Wisconsin River on Chicago, Milwaukee, St. Paul & Pacific Railroad
Replaced by a new bridge

LS&MS - Grand River Stone Arch (Lake County, Ohio)
Built 1856; Replaced 1908
Lost Stone arch bridge over Grand River on Lake Shore & Michagan Southern Railroad
Replaced by a new bridge

Newton Falls Covered Bridge 35-78-01x (Trumbull County, Ohio)
Built 1856 demolished 1945
Lost Howe through truss bridge over Mahoning River

Portland Mills Covered Bridge 14-61-21 (Parke County, Indiana)
Built 1856, relocated in 1961, closed to traffic in 1982, restored and reopened in 1996
Covered bridge over Little Raccoon Creek on CR650N
Open to traffic

Puente La Concepción (Caguas, Puerto Rico)
Built 1856
Stone arch bridge over Rio Canas on PR 798
Open to traffic

Rush Street Swing Bridge (Old) (Cook County, Illinois)
Built 1856 as the first all-iron bridge in Chicago, destroyed 1863
Lost swing bridge over Chicago River on Rush Street
Replaced by a new bridge

Satans Kingdom Bridge (Older) (Litchfield County, Connecticut)
Built 1856; Replaced 1916
Lost Covered Burr arch truss bridge over Farmington River on US Highway 44
Replaced by a new bridge

US11 Sandy Creek Bridge (Jefferson County, New York)
Built 1856; rehabilitated 1990
Stone arch bridge over Sandy Creek on US 11 in Adams
Open to traffic

Welty's Mill Bridge (Franklin County, Pennsylvania)
Built 1856
Bridge over East Branch of the Little Antietam Creek
Closed to all traffic

Wilkes Street Tunnel (Alexandria, Virginia)
Used heavily during the Civil War, refurbished by city in 2007-08
Open to pedestrians and bicyclists