Historic Bridges of the U.S. | Union Bridge Co.

Arkansas River Railroad Bridge (Sebastian County, Arkansas)
Built 1891
Lost Through truss bridge over Arkansas River for Railroad and at one time Wagon traffic in Ft. Smith. It was removed due to the Kerr-McClellan Arkansas river navigation project.
Lost

Conrail Bridge (Potter County, Pennsylvania)
Built 1891
Pony truss bridge over Conrail track on TR 516
Open to traffic

First Arkansas River Frisco Bridge (Sebastian County, Arkansas)
Built 1885
Lost Through truss bridge over Arkansas River on Frisco Railroad in Fort Smith
Replaced by new bridge

First Cairo Railroad Bridge (Alexander County, Illinois)
Built 1889
Lost through and deck truss bridge over the Ohio River carrying the Illinois Central Railroad in Cairo
Replaced by the current bridge, but reusing many of the piers

Frisco Bridge (Shelby County, Tennessee)
Built 1892
Cantilevered through truss railroad bridge over the Mississippi River at Memphis
Open to railroad traffic

Leavenworth Railroad Bridge (Leavenworth County, Kansas)
Built 1893
Lost through truss swing bridge over the Missouri River at Leavenworth
No longer exists

Mark Twain Bridge (Marion County, Missouri)
Substructure, 1936
Lost through truss bridge over the Mississippi River on US 36 at Hannibal
Replaced by the new I-72 bridge

Nebraska City Bridge (Otoe County, Nebraska)
Built 1887, 1930
Lost through truss bridge over Missouri River/Bnsf Rr on Nebraska 2
Highway bridge replaced by new bridge

Poughkeepsie Railroad Bridge (Dutchess County, New York)
Built 1888
Deck truss bridge over Hudson River on Conrail at Poughkeepsie in Highland
Scheduled for opening to pedestrian use in 2009

Rock Rapids Railroad Bridge (Lyon County, Iowa)
Built 1897
Abandoned through truss bridge over Rock River on the discontinued Illinois Central Railroad at Rock Rapids
Still standing, but rails removed

Salmon Creek Bridge (Clark County, Washington)
Built 1923
Concrete arch bridge over Salmon Creek on Old WA 503 in Meadow Glade
Open to traffic

Saugatuck River Bridge (Fairfield County, Connecticut)
Built 1884
Swing through truss bridge over Saugatuck River on CT 136 in Westport
Open to traffic

Twin Falls-Jerome Bridge (Twin Falls County, Idaho)
Built 1927
Lost cantilevered deck truss bridge over Snake River on US 93 at Twin Falls
Replaced by the Perrine Bridge