Tide Creek Bridge (Columbia County, Oregon)
Built 1920
Stringer bridge over Tide Creek on U.S. 30 Frontage Road
Open to traffic

Tiffany Stone Bridge (Rock County, Wisconsin)
Stone arch bridge over Turtle Creek on UPRR in Town of Turtle
Open to traffic

Timber Bridge (Callaway County, Missouri)
Built 1992
Wooden bridge over Hillers Creek on CR 328
Open to traffic

Times Beach Railroad Bridge (St. Louis County, Missouri)
Three-span deck truss bridge over Meramec River on the BNSF Railroad at Times Beach, near Deicke Road
Open to railroad traffic

Timpas Bridge (Otero County, Colorado)
Built 1924, rehabilitated in 1966
Through truss bridge over Timpas Creek on CR N, just off US 350
Open to one-lane traffic

Tippah River Bridge (Marshall County, Mississippi)
Built 1937
Wooden bridge over Tippah River on MS 178 (Old US 78) northwest of Potts Camp
Open to traffic

Tippecanoe River Bridge (Pulaski County, Indiana)
Built 1948
Pony truss bridge over Tippecanoe River on CR 625 East in Monterey
Open to traffic

Tippecanoe River IN 119 Bridge (Pulaski County, Indiana)
Built 1948; rehabilitated 1996
Through truss bridge over Tippecanoe River on IN 119
Open to traffic

Tipton Ford Bridge (Newton County, Missouri)
Built ca. 1920
Deck girder bridge over Shoal Creek on Old US 71 at Tipton Ford
Open to traffic with a 15 ton weight limit

Tobias Bridge (Jefferson County, Indiana)
Built 1885; rehabilitated 2004
Wrought-iron through truss bridge over Big Creek on CR 1360 West
Open to one-lane traffic

Tongue River Bridge (Sheridan County, Wyoming)
Built 1917
Parker Pony truss bridge over Tongue River on CN3-71
Open to traffic

Tonovay Bridge (Greenwood County, Kansas)
Built 1928
Marsh arch bridge over Bachelor Creek on Old US 54, 1.0 mi. north and 5.3 mi. east of Eureka
Open to traffic

Tooth Rock Tunnel (Multnomah County, Oregon)
Built 1936 due to the need to relocate the highway for the construction of Bonneville Dam
Tunnel under Tooth Rock on I-84
Open to traffic

Topanga Canyon Road (CA 29) over Topanga Creek (Los Angeles County, California)
Built 1934
Concrete arch bridge over Topanga Creek on CA 27 in Los Angeles
Open to traffic

Topanga Canyon Road over Garapito Creek (Los Angeles County, California)
Built 1927
Concrete arch bridge over Garapito Creek on CA 27 in Los Angeles
Open to traffic

Toston Bridge (Broadwater County, Montana)
Built 1919-20 by Security Bridge Co. of Billings; made obsolete by new bridge in 1955
Through truss bridge over Missouri River on CR 415 (Old US 287) at Toston
Open to traffic

Totten Ford Bridge (Crawford County, Indiana)
Built ca. 1910; rehabilitated 1995
Through truss bridge over Blue River on CR 590 North
Open to traffic

Town Branch Bridge (Polk County, Missouri)
Small two-span arch bridge over Town Branch on 435th Road in Bolivar
Open to traffic

Town Branch Bridge (Marion County, Arkansas)
Built 1928; rehabilitated 1960
Concrete tee beam bridge over Town Branch on US 62/US 412 in Yellville
Open to traffic

Town Branch Creek Bridge (Cherokee County, Oklahoma)
Built 1941 by Works Progress Administration
Arch bridge over Town Branch Creek in Tahlequah
Open to traffic

Town Creek Bridge (Hinds County, Mississippi)
Built 1914
Stringer bridge over Town Creek on South Street in Jackson
Open to traffic

Town Creek Bridge (Hinds County, Mississippi)
Built 1957
Stringer bridge over Town Creek on State Street in Jackson
Open to traffic

Township Road 271 Bridge (Shelby County, Illinois)
Pony truss bridge over an unnamed creek on TR 271, 2.9 mi. southwest of Strasburg
Open to traffic

TR 164 Bridge (Jasper County, Illinois)
Built 1909
Arch bridge over an unnamed creek on TR 164 in Newton
Open to traffic

TR 164 Bridge No. 2 (Jasper County, Illinois)
Built 1909
Arch bridge over Unnamed creek on TR 164 in Newton
Open to traffic

TR 177A Bridge (Jasper County, Illinois)
Arch bridge over an unnamed creek on TR 177A, 2.5 mi. northeast of Willow Hil
Open to traffic

TR 193 Bridge (Crawford County, Illinois)
Built 1912
Arch bridge over an unnamed creek on TR 193, 2 mi. southeast of Oblong
Open to traffic

TR 197 Bridge (Coles County, Illinois)
Arch bridge over an unnamed creek on TR 197, 1 mi. south of Coles Airport
Open to traffic

Trestle Road Bridge (Dodge County, Wisconsin)
Built 1910
Girder bridge over Trestle Road on UPRR (Formerly Chicago & Northwestern)
Open to traffic

Trib of Lit Sugar Bridge (McDonald County, Missouri)
Built 1931
Bridge over Trib of Lit Sugar on Rains Road
Open to traffic

Triborough Lift Bridge (New York County, New York)
Built 1936; rehabilitated 1967
Vertical lift bridge over Harlem River between Manhattan and Randall's Island in New York
Open to six lanes of traffic

Trimble Creek IN 25 Bridge (Kosciusko County, Indiana)
Built 1946
Concrete arch bridge over Trimble Creek on IN 25
Open to traffic

Troutdale Bridge (Multnomah County, Oregon)
Built 1912
Through truss bridge over Sandy River on Historical Columbia River Highway in Troutdale
Open to traffic

Tucker Bridge (Hood River County, Oregon)
Built 1931
Concrete arch bridge over Hood River on HWY 281
Open to traffic

Tuckers Branch Route H Bridge (Jackson County, Missouri)
Built 1929
Pony truss bridge over Tuckers Branch on Route H
Open to traffic

Tunkhannock Viaduct (Wyoming County, Pennsylvania)
Built 1912-15 for the Lackawanna Railroad
Massive ten-span concrete arch bridge over Tunkhannock Creek on the Canadian Pacific Railroad at Nicholson
Open to traffic

Tunnel No. 1 (Jefferson County, Colorado)
Built 1951
Tunnel on US 6 west of Golden
Open to two-lane traffic

Tunnel No. 1 (Skamania County, Washington)
Built 1937
Tunnel on WA 14
Open to traffic

Tunnel No. 2 (Jefferson County, Colorado)
Built 1941
Tunnel on US 6 west of Golden
Open to two-lane traffic

Tunnel No. 2 (Skamania County, Washington)
Built 1937
Tunnel on WA 14
Open to traffic

Tunnel No. 3 (Skamania County, Washington)
Built 1937
Tunnel on WA 14
Open to traffic

Tunnel No. 3 (Jefferson County, Colorado)
Built 1957
Tunnel on US 6 west of Golden
Open to two-lane traffic

Tunnel No. 4 (Skamania County, Washington)
Built 1937
Tunnel on WA 14
Open to traffic

Tunnel No. 5 (Skamania County, Washington)
Built 1937
Tunnel on WA 14
Open to traffic

Tunnelton Railroad Tunnel (Lawrence County, Indiana)
Lined with brick about 1898
Tunnel on CSX railroad
Open to traffic

Tuque Creek Bridge (Warren County, Missouri)
Built 1933
Pony truss bridge over Tuque Creek on MO 47/94 just southeast of Marthasville
Open to two-lane traffic

Turkey Creek Bridge (Benton County, Missouri)
Built ca. 1930; rehabilitated 1974
Pony truss bridge over Turkey Creek on CR SE 810 near the end of Route PP
Closed to all traffic

Turkey Creek Bridge (Cedar County, Missouri)
Built ca. 1940; rehabilitated 1984
Pony truss bridge over Turkey Creek on CR 752 (Powerline Road)
Open to one-lane traffic

Turkey Creek Old US 63 Bridge (Callaway County, Missouri)
Built 1924; rehabilitated 1940
Concrete bridge with balustrade over Turkey Creek on Cedar City Drive (Old US 63) in Jefferson City
Open to two-lane traffic

Turkey Creek Old US 65 Bridge (Pettis County, Missouri)
Built 1925
Pony truss bridge over Turkey Creek on Claycomb Road (Old US 65) north of Sedalia
Open to traffic

Turkey River Bridge (Winneshiek County, Iowa)
Built 1873 by the Wrought Iron Bridge Co.
Bowstring through truss bridge over Turkey River on Little Church Road
Open to traffic

Turman Creek IN 154 Bridge (Sullivan County, Indiana)
Built 1946; rehabilitated 1984
Pony truss bridge over Turman Creek on IN 154
Open to traffic

Turnback Creek Old US 66 Bridge (Lawrence County, Missouri)
Built 1923; made obsolete by new bridge on US 66 (now MO 96) in 1960
Three-span pony truss bridge over Turnback Creek on Old US 66
Open to traffic with a 3 ton weight limit

Turnback Creek Route DD Bridge (Lawrence County, Missouri)
Built 1955
Pony truss bridge over Turnback Creek on Route DD
Open to one-lane traffic

Turner Station Railroad Bridge (Greene County, Missouri)
Pony plate girder railroad bridge over James River just south of the Turner Station Bridge near Route D
Open(?) to railroad traffic

Tuscumbia Bridge (Miller County, Missouri)
Built 1932
Through and deck truss bridge over the Osage River on MO 17 at Tuscumbia
Open to two-lane traffic, but in poor condition

Twelfth Avenue Bridge (Linn County, Iowa)
Built 1974
Five-span open-spandrel arch bridge over Cedar River on 12th Avenue in Cedar Rapids
Open to traffic

Twelfth Street Viaduct (Jackson County, Missouri)
Built 1915; rehabilitated 1965 and 2006
Concrete viaduct over the railroad tracks on Twelfth Street, just west of downtown Kansas City
Open to traffic

Twelve Mile Creek KY 8 Bridge (Campbell County, Kentucky)
Built 1946
Through truss bridge over Twelve Mile Creek on KY 8
Open to traffic

Twin Bridge (Fayette County, Iowa)
Built ca. 1910 by N.M. Stark & Co.
Concrete arch bridge over Little Volga River on 130th Street
Open to traffic

Twin Bridges No. 1 Bridge (Washington County, Arkansas)
Built 1922 by the Luten Bridge Co.
Closed-spandrel arch bridge over Barron Fork on CR 3412, just off CR 11 (Bush Valley Road)
Open to traffic

Twin Bridges No. 2 Bridge (Washington County, Arkansas)
Built 1922 by the Luten Bridge Co.
Closed-spandrel arch bridge over an unnamed creek, just off CR 11 (Bush Valley Road)
Open to traffic

Twin Bridges North Fork Bridge (Douglas County, Missouri)
Built 1931
Three-span open-spandrel arch bridge over North Fork White River on MO 14 at Twin Bridges
Open to two-lane traffic

Twin Bridges Spring Creek Bridge (Douglas County, Missouri)
Built 1931
Two-span open-spandrel arch bridge over Spring Creek on MO 14 at Twin Bridges
Open to two-lane traffic

Two Bayou Creek AR 274 Bridge (Ouachita County, Arkansas)
Built 1942
Wooden stringer bridge over Two Bayou Creek on AR 274
Open to traffic

Two Mile Creek Bridge (Polk County, Arkansas)
Built 1920
Through truss bridge over Two Mile Creek on CR 37 (Old US 71)
Open to one-lane traffic

Two Mile Creek Relief Bridge (Polk County, Arkansas)
Built 1923
Pony truss bridge over Two Mile Creek Relief on CR 37 (Old US 71)
Open to one-lane traffic

Two Mile North/ Golf Course Bridge (Lyon County, Iowa)
Built 1980 Replaces a five span bridge built in 1900. Original bridge consisted of a 244 ft. long combination steel trestle with a 7 panel Pratt through truss bridge as its main span (130 ft.)
Stringer bridge over Rock River on Local road
Open to traffic

Tyler Park Bridge (Jefferson County, Kentucky)
Built 1904
Stone arch bridge over a pedestrian underpass on KY 1703 in Tyler Park
Open to traffic

Tyrone "S" Bridge (Anderson County, Kentucky)
Built 1932
Deck truss bridge over Kentucky River and on US 62
Open to traffic

Umpqua River Bridge (Douglas County, Oregon)
Built 1936
Swing bridge over Umpqua River on US 101 in Reedsport
Open to traffic

Underwood Avenue Bridge (Marshall County, Iowa)
Steel stringer bridge over Unnamed creek on Underwood Avenue and Merle Hibbs Blvd
Open to traffic

Union Avenue Bridge (Pueblo County, Colorado)
Built 1925; rehabilitated 1988
Two-span deck truss bridge over the Arkansas River on Union Avenue in Pueblo
Open to traffic

Union Road and 1500 Avenue Bridge (Dickinson County, Kansas)
Timber stringer bridge over Union Road and 1500 Avenue on Abandoned Railroad Line
Open to traffic

University Heights Bridge (New York County, New York)
Originally built 1895; main span relocated in 1906; opened to traffic January 8, 1908
Swing bridge over Harlem River on W. 207th Street in New York
Open to traffic

Unknown Creek Bridge (Brown County, Kansas)
Built ca. 1910
Pony truss bridge over Unknown Creek in Robinson
Open to traffic

Unnamed Creek Bridge (Tulsa County, Oklahoma)
Built ca. 1920
Warren pony truss bridge over an unnamed creek on 5th Street (E0450) in Skiatook
Open to traffic

Unnamed Creek Bridge (Winneshiek County, Iowa)
Built 1946
Pony truss bridge over an unnamed creek on a local road
Open to traffic

Unnamed Creek Bridge (Nemaha County, Kansas)
Pony truss bridge over an unnamed creek, 5.0 mi. west of Granada
Open to traffic

Unnamed Creek Bridge (Nemaha County, Kansas)
Pony truss bridge over an unnamed creek, 5.0 mi. west and 0.8 mi. north of Granada
Open to traffic

UP Railroad Bridge (St. Francois County, Missouri)
Built 1925
Concrete tee beam bridge over Up Rr on St Joe Drive in Flat River
Open to traffic

Upper Bluffton Bridge (Winneshiek County, Iowa)
Built 1878 by the Wrought Iron Bridge Co.
Through truss bridge over Upper Iowa River on W. Ravine Road
Closed to all traffic

Upper Iowa River Bridge (Winneshiek County, Iowa)
Rehabilitated 1974
Through truss bridge over Upper Iowa River on a local road
Open to traffic

Upper Iowa River Bridge (Winneshiek County, Iowa)
Built 1900
Through truss bridge over Upper Iowa River on a local road
Open to traffic

Upper Sulphur Creek Bridge (Orange County, Indiana)
Built ca. 1920
Pony truss bridge over Upper Sulphur Creek on CR 200 South
Open to traffic

Upper Sulphur Creek Bridge (Orange County, Indiana)
Built ca. 1920
Pony truss bridge over Upper Sulphur Creek on CR 100 South
Open to traffic

UPRR Bridge (Boone County, Iowa)
Built 1900
Pony truss bridge over UPRR on a local road
Open to traffic

UPRR Bridge (Boone County, Iowa)
Built 1900
Pony truss bridge over UPRR on a local road
Open to traffic

UPRR Bridge (Tama County, Iowa)
Built ca. 1920
Pony truss bridge over UPRR on a local road
Open to traffic

UPRR Bridge at Shell Rock Crossing (Freeborn County, Minnesota)
Deck plate girder bridge over Shell Rock River on UPRR Parallel to US 65 in Glennville
Open to traffic

UPRR Bridge over Long Beach Blvd. (Los Angeles County, California)
Built 1932
Pony truss bridge carrying UPRR over Long Beach Blvd. in Long Beach
Open to traffic

UPRR Bridge over Los Angeles River in Carson (Los Angeles County, California)
Built 1932
Through truss over the Los Angeles River
Open to traffic

UPRR Bridge over the Santa Clara River (Los Angeles County, California)
Bridge over Santa Clara River on Union Pacific Railroad & Metrolink Tracks
Open to railroad traffic

UPRR Bridge over Whittier Blvd. in Montebello (Los Angeles County, California)
Built 1964
Steel stringer bridge over Whittier Blvd on UPRR in Pico Rivera
Open to traffic

UPRR over Willow Street (Los Angeles County, California)
Built 1932
Pony truss bridge over Willow Street on the Union Pacific Railroad in Long Beach
Open to traffic

US 11/49 Interchange Bridge (Forrest County, Mississippi)
Built 1946
Concrete bridge over US 11 on US 49 in Hattiesburg
Open to traffic above and below

US 231 Bridge (Putnam County, Indiana)
Built 1906
Concrete arch bridge over US 231 on CSX Railroad in Greencastle
Open to traffic

US 61-Scenic Highway Bridge (East Baton Rouge Parish, Louisiana)
Built 1940
Concrete tee beam bridge over US 61 on US 190 in Baton Rouge
Open to traffic

US 65 UPRR Bridge (Story County, Iowa)
Built 1934
Steel stringer bridge over US 65
Open to traffic

US 71 Bridge (Jackson County, Minnesota)
Built 1954. Previous span was a riveted Parker through truss bridge built in 1924. It was relocated to the State Street Bridge site at the time of its replacement.
Steel stringer bridge over Des Moines River on Us 71 in Jackson
Open to traffic