National Historic Landmark
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Blenheim Bridge (Schoharie County, New York)
Built 1855; Approach span added 1869; Approach span rebuilt 1887 & 1895; bypassed 1932; lost 2011Lost covered bridge over Schoharie Creek on River RoadDestroyed by flooding from Hurricane Irene on Aug 28, 2011
Bollman Bridge (Howard County, Maryland)
Built for the main line of the B&O Railroad in 1869. Moved to present location around 1887. Remained in service until 1947. Restored in 1968 (perhaps 1983).Bollman through truss bridge over Little Patuxent River in Savage, near the intersection of Goman Road and Foundry StreetOpen to pedestrians
Brooklyn Bridge (Kings County, New York)
Opened to traffic May 24, 1883Suspension bridge over East River between Manhattan and Brooklyn in New YorkOpen to traffic
Brown Covered Bridge 45-11-09 (Rutland County, Vermont)
Built 1880 by Nichols PowersCovered bridge over Cold River on Upper Cold River Road in ShrewsburyOpen to one lane traffic
Cabin John Aqueduct Bridge (Montgomery County, Maryland)
Built 1853-63 to carry Washington Aqueduct; rehabilitated 2001Stone arch bridge over Cabin John Creek on Macarthur Blvd.Open to traffic
CSX - Carrollton Viaduct (Baltimore, Maryland)
Built in 1829 for the Baltimore and Ohio Railroad, this is the oldest railroad bridge in the world still in use.Stone arch bridge over Gwynn's FallsOpen to traffic
Delaware Aqueduct (Pike County, Pennsylvania)
Built 1848 by John A. Roebling to carry the Delaware & Hudson Canal; later converted for highway traffic; rehabilitated 1985Suspension bridge over Delaware River on the former Delaware & Hudson CanalOpen to one-lane traffic
Eads Bridge (St. Louis, Missouri)
Built 1869-1874 under the direction of engineer James Buchanan Eads; automobile deck closed 1989-2003 for rehabilitation and replacement; reopened July 4, 2003Three-span steel arch bridge over the Mississippi River and N. Leonor K. Sullivan Blvd. in downtown St. LouisUpper vehicular deck open to vehicular traffic on weekdays. Closed on weekends; Lower railroad deck open
Edmund Pettus Bridge (Dallas County, Alabama)
Built 1940; site of "Bloody Sunday" March 7, 1965Steel through arch bridge over Alabama River on Business US 80 in SelmaOpen to traffic
Eldean Covered Bridge 35-55-01 (Miami County, Ohio)
Built 1860; rehabilitated 1980Two-span covered bridge over Miami River on Farver Road (formerly Eldean Road)Open to traffic
Mission Espada Aqueduct (Bexar County, Texas)
Built between 1731 and 1745Stone arch bridge over Piedras Creek on Acequia MadreStill carries water
Natural Bridge (Rockbridge County, Virginia)
Naturally formed bridge, Built c.150,000,000 BCE, that carries Rt. 11 over Cedar CreekArch bridge over Cedar Creek on South Lee Hway (Rt. 11)Open to traffic
Roebling Suspension Bridge (Hamilton County, Ohio)
Built 1866 by John A. Roebling. Rehabilitated 1955.Suspension bridge over the Ohio River between Cincinnati and CovingtonRehabilitation Completed
Smithfield Street Bridge (Allegheny County, Pennsylvania)
Built 1883 under the direction of engineer Gustav LindenthalTwo-span lenticular through truss bridge over Monongahela River on Smithfield Street in PittsburghOpen to four lanes of traffic
West Union Covered Bridge 14-61-27 (Parke County, Indiana)
Built 1876, bypassed in 1964Covered bridge over Sugar Creek on CR525W north of West UnionOpen to pedestrians only
Wheeling Suspension Bridge (Ohio County, West Virginia)
Built 1849; collapsed May 17, 1854; temporary bridge reopened July 26, 1854; permanent bridge reopened July 1860; improvements made 1871-72, 1886, 1922, 1930, 1956 and other yearsSuspension bridge over Ohio River on WV 251 in WheelingOpen to pedestrians only