Structurally deficient

St. Johns Creek Route YY Bridge (Franklin County, Missouri)
Built 1957
Three-span pony truss bridge over St. Johns Creek on Route YY
Open to two-lane traffic

St. Laurent Creek Bridge (Ste. Genevieve County, Missouri)
Built ca. 1920
Pony truss bridge over St. Laurent Creek on Second Street (unmarked) in St. Mary just south of US 61 and just north of the Perry County line
Open to one-lane traffic with a weight limit

St. Laurent Creek CR 930 Bridge (Perry County, Missouri)
Built ca. 1930; replaced 2005
Bedstead pony truss bridge over St. Laurent Creek on CR 930 southeast of St. Mary
Replaced by new bridge

St. Louis Avenue Bridge (Jackson County, Missouri)
Built 1914; replaced 2003
Lost skewed Pratt through truss over the KCS Railroad on St. Louis Avenue
Replaced by new bridge

St. Mary River Aqueduct Bridge (Glacier County, Montana)
Built 1915 by the Minneapolis Bridge Co.
Two-span through truss bridge over St. Mary River on CR 224, also carrying a pair of water pipelines
Open to traffic

Stagecoach Road Bridge (Jersey County, Illinois)
Through truss bridge over Piasa Creek on Stagecoach Road (TR 154)
Open to one-lane traffic

State Street Bridge (Milwaukee County, Wisconsin)
Built 1924; Restored 2007
Bascule bridge over Milwaukee River on State Street (Westbound US 18) in Milwaukee
Open to traffic

State Street Bridge (Fountain County, Indiana)
Built 1963
Pony truss bridge over Coal Creek on State Street in Veedersburg
Open to traffic

Station Road Bridge (Huntington County, Indiana)
Built 1915; rehabilitated 1988
Camelback through truss bridge over Little Wabash River on Station Road in Roanoke
Open to traffic

Stevenson Road Covered Bridge (Greene County, Ohio)
Built 1877 by the Smith Bridge Co.; rehabilitated 1975; closed to traffic 2003
Covered bridge over Massies Creek on Stevenson Road (CR 76) in Wilberforce
Open to pedestrians only

Stockheughter Covered Bridge (Franklin County, Indiana)
Built 1887 by the Smith Bridge Co.; rehabilitated 1988
Covered bridge over Salt Creek on Enochsburg Road
Open to traffic

Stone Arch Road Bridge (Johnson County, Indiana)
Built 1885
Through truss bridge over Ninevah Creek on Stone Arch Road. Located in Atterbury Fish and Wildlife Area.
Open to traffic

Stone Creek Bridge (Fayette County, Illinois)
Built 1925; rehabilitated 1940
Pony truss bridge over Stone Creek on TR 438
Open to traffic

Stones Branch Bridge (Bollinger County, Missouri)
Built 1922
Pony truss bridge over Stones Branch on MO 51, near the Route A intersection
Open to two-lane traffic on a paved road

Stones River TN 24 Bridge (Davidson County, Tennessee)
Built 1928
Through truss bridge over Stones River on TN 24 in Nashville
Open to traffic

Stranger Creek Bridge (Leavenworth County, Kansas)
Through truss bridge over Stranger Creek on Metro Avenue, 5.0 mi. north and 0.7 mi. east of Linwood
Open to traffic

Stranger Creek Bridge (Atchison County, Kansas)
Built 1925
Pony truss bridge over Stranger Creek, 2.2 mi. north and 5.0 mi. west of Cummings
Closed to all traffic

Stranger Creek Bridge (Atchison County, Kansas)
Built 1925
Pony truss bridge over Stranger Creek, 0.5 mi. south and 0.5 mi. east of Farmington
Open to traffic

Stranger Creek Bridge (Atchison County, Kansas)
Built 1925; rehabilitated 1980
Pony truss bridge over Stranger Creek on Haskell Road, 0.5 mi. south of Farmington
Open to traffic

Strasburg Bridge (Shelby County, Illinois)
Built 1909
Wooden deck bridge over Unnamed creek on TR 320
Open to traffic

Streit Road Bridge (McHenry County, Illinois)
Pony truss bridge over North Branch Kishwaukee Creek on Streit Road
Open to two-lane traffic

Stringtown Bridge (Cole County, Missouri)
Built 1930; made obsolete by new bridge in 1974
Through truss bridge over North Moreau Creek on Hemstreet Road west of Jefferson City
Open to two-lane traffic

Stuckey's Bridge (Lauderdale County, Mississippi)
Built 1901 by the Virginia Bridge & Iron Co.
Stearns through truss bridge over Chunky River on Stuckey Bridge Road
Closed to all traffic

Stueber Road Bridge (Crawford County, Missouri)
Built 1917
Pony truss bridge over a branch of Little Bourbeuse River on Stueber Road
Open to traffic

Stump Ford Bridge (Cedar County, Missouri)
Pony truss bridge over Cedar Creek on CR 274
Open to one-lane traffic

Sugar Creek 2470E Bridge (Iroquois County, Illinois)
Built 1927
Lost through truss bridge over Sugar Creek on TR 324, 1.5 mi. east of Milford
Razed

Sugar Creek 350 West Bridge (Boone County, Indiana)
Built ca. 1910
Through truss bridge over Sugar Creek on CR 350 West (Creek Road) just east of I-65
Open to one-lane traffic

Sugar Creek Branch 3000E Bridge (Iroquois County, Illinois)
Built 1916; rehabilitated 1933
Through truss bridge over a branch of Sugar Creek on 3000E Road, 2 mi. northeast of Stockland
Closed to all traffic

Sugar Creek Bridge (Sullivan County, Indiana)
Built 1935
Concrete arch bridge over Sugar Creek on CR 400 West
Open to traffic

Sugar Creek Bridge (Pike County, Missouri)
Pony truss bridge over Sugar Creek on CR 115
Open to one-lane with a 7 ton weight traffic

Sugar Creek Bridge (Iroquois County, Illinois)
Built 1904(?)
Steel through arch bridge over Sugar Creek on 900N Road (CH 9), 3.25 mi. east of Milford
Open to one-lane traffic

Sugar Creek Bridge (Shelby County, Indiana)
Built ca. 1920
Through truss bridge over Sugar Creek on CR 275 North
Open to traffic

Sugar Creek Bridge (Sullivan County, Indiana)
Built 1899
Through truss bridge over Sugar Creek on CR 550 West
Abandoned with deck removed

Sulpher Lake Bridge (Redwood County, Minnesota)
Built 1927
Through truss bridge over Sulpher Lake on MN 19
Open to traffic

Sulphur Creek Bridge (Sullivan County, Indiana)
Built 1925
Concrete arch bridge over Sulphur Creek on CR 600 East
Open to traffic

Sumner Avenue Bridge (Humboldt County, Iowa)
Built 1919
Three-span concrete arch bridge over West Fork Des Moines River on Sumner Avenue in Humboldt
Open to traffic

Sumnerville Station Bridge (Ottawa County, Kansas)
Built ca. 1930
Pony truss bridge over Solomon River on Quaker Road
Open to traffic

Suncook River Bridge (Merrimack County, New Hampshire)
Built 1931, removed 2007.
Deck truss bridge over Suncook River on US 3 in Allenstown
Open to traffic

Sutton Road Bridge (Linn County, Iowa)
Built 1879; rehabilitated 1987
Whipple through truss bridge over Wapsipinicon River on Sutton Road near Paris
Open to traffic

Swan Creek Bridge (Osage County, Missouri)
Built ca. 1930
Pony truss bridge over Swan Creek on CR 625
Open to one-lane traffic

Swan Creek US 160 Bridge (Taney County, Missouri)
Built 1951
Two-span through truss bridge over Swan Creek (part of Bull Shoals Lake) on US 160 near Forsyth
Open to two-lane traffic

Swann Covered Bridge (Blount County, Alabama)
Built 1933
Covered bridge over Locust Fork River on Swann Bridge Road
Open to traffic

Sylamore Creek Swinging Bridge (Stone County, Arkansas)
Built 1943; rehabilitated 1985
Swinging bridge over South Sylamore Creek on CR 238 (Old AR 14)
Open to one-lane traffic

Tallahatchie River Bridge (Panola County, Mississippi)
Built 1940
Through truss bridge over Tallahatchie River on MS 6 west of Batesville
Open to two-lane traffic

Tallahatchie River Bridge (Union County, Mississippi)
Built 1927; made obsolete by a new bridge in 1955
Pony truss bridge over Tallahatchie River on CR 115 (Old MS 15) at New Albany
Abandoned with northern approach spans missing

Tauy Creek Bridge (Franklin County, Kansas)
Built ca. 1920, removed June 2008
Pony truss bridge over Tauy Creek, 3.0 mi. east of N. Otawa
No longer exists

Tauy Creek Bridge (Franklin County, Kansas)
Built 1895 by the Kansas City Bridge Co.
Through truss bridge over Tauy Creek on Nebraska Road, northeast of Ottawa
Closed to all traffic

Taylor Bridge (Marion County, Missouri)
Built 1929, replacing an earlier bridge
Through truss bridge over North Fabius River on CR 313 (Old US 24/61)
Open to traffic with a weight limit

Teegarden Covered Bridge (Columbiana County, Ohio)
Built 1876 by Robinson and McCracken
Covered bridge over Middle Fork Little Beaver on Eagleton Road (TR 761)
Open to pedestrians only

Ten Mile Creek Bridge (Winneshiek County, Iowa)
Built 1900
Pony truss bridge over Ten Mile Creek on a local road
Open to traffic

Ten Mile Creek Bridge (Winneshiek County, Iowa)
Built ca. 1895
Pony truss bridge over Ten Mile Creek on Happy Hollow Road
Open to traffic

Tennessee River Bridge (Morgan County, Alabama)
Built 1931
Through truss bridge over Tennessee River on US 231/AL 53 in Huntsville
Open to traffic

Terre Noire Creek CR 10 Bridge (Clark County, Arkansas)
Built 1928; rehabilitated 1995
Through truss bridge over Terre Noire Creek on CR 10 (Bateman Road)
Closed to all traffic

Terre Noire Creek US 67 Bridge (Clark County, Arkansas)
Built 1931 by the Virginia Bridge & Iron Co. of Roanoke, Virginia
Pony truss bridge over Terre Noire Creek on US 67
Open to traffic

Texas Creek Bridge (Fremont County, Colorado)
Built 1907 by the Pueblo Bridge Co.
Pony truss bridge over Arkansas River on CR 27 at Texas Creek
Open to traffic

Texas Street Bridge (Bossier Parish, Louisiana)
Built 1934; rehabilitated 1984
Cantilevered through truss bridge over Red River on US 80 in Shreveport
Open to four-lane traffic

Thayer Viaduct (Oregon County, Missouri)
Built by M.S. Cartter & Co. of St. Louis
Through truss bridge over the BNSF railroad and Two Mile Creek on MO 19/Business US 63 in Thayer
Open to two-lane traffic

The Dalles Bridge (Wasco County, Oregon)
Built 1954
Through truss bridge over Columbia River on US 197 in City of The Dalles
Open to traffic

The Sny Bridge (Pike County, Illinois)
Through truss bridge over The Sny on TR 136, 2 mi. south of Rockport
Open to traffic

Third Street Bridge (Allen County, Ohio)
Built 1912
Arch bridge over Flat Fork Creek on Third Street in Delphos
Open to traffic

Thompson Creek Bridge (Mercer County, Kentucky)
Built 1935
Pony truss bridge over Thompson Creek on Central Pike
Open to traffic

Thompson Creek Bridge (Polk County, Arkansas)
Built 1925
Pony truss bridge over Thompson Creek on CR 37 (Old US 71)
Open to traffic

Thompson Creek Bridge (East Feliciana Parish, Louisiana)
Built 1925
Through truss bridge over Thompson Creek on a local road, west of Norwood
Closed to all traffic

Thompson River 3rd Street Bridge (Grundy County, Missouri)
Built 1921
Two-span through truss bridge over Thompson River on 3rd Street (Old MO 6) west of Trenton
Open to 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 75 East Bridge (Pulaski County, Indiana)
Built ca. 1890
Two-span through truss bridge over Tippecanoe River on Road 75 East, south of Winamac
Closed to all 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

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

Tongue River Bridge (Custer County, Montana)
Built 1897 by W.S. Hewett & Co.
Lost through truss bridge over Tongue River on CR 054 in Miles City
Replaced by a moden bridge on current site

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

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

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

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

Township Road 7 Bridge (Moultrie County, Illinois)
Through truss bridge over an unnamed creek on TR 7, 3.3 mi. northwest of Lovington
Closed to all 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

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

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

Tull Bridge (Saline County, Arkansas)
Built 1916 by the Boardman Co. of Oklahoma City, OK
Through truss bridge over Saline River on CR 5 (Old AR 291) at Tull
Closed with approaches removed and awaiting rehabilitation

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 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 Knob Bridge (Polk County, Missouri)
Through truss bridge over Little Sac River on 505th Road, southeast of Aldrich
Closed to all 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

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

Twin Bridge (Hendricks County, Indiana)
Built 1886
Closed through truss bridge over West Fork White Lick Creek on CR 50 South
Closed to all 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

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

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

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