Saxton Ford Bridge (Buchanan County, Missouri)
Built 1925 by the Witham Construction Co.; replaced 1989
Lost through truss bridge over Platte River on Saxton-Easton Road
Replaced by a modern bridge

Schell City Bridge (Vernon County, Missouri)
Built 1906
Through truss bridge over Osage River on Rockville Road/Old River Road north of Schell City
Closed to all traffic

Schilpp Road Bridge (Lee County, Illinois)
Built 1915; relocated August 2006
Relocated pony truss bridge formerly over Five Mile Branch on Schilpp Road
Awaiting reconstruction at a site near Franklin Grove

Schneider's Ford Bridge (Cole County, Missouri)
Built 1897-98 by the Youngstown Bridge Co.; rehabilitated 1979; replaced 1988
Lost through truss over Moreau River on Bald Hill Road, southeast of Jefferson City
Replaced by a concrete bridge

Schomberg Road Bridge (Warren County, Missouri)
Built 1908
Bedstead pony truss bridge over Water Run Creek on Schomberg Road
Open to one-lane traffic

Schoneman Park Bridge (Rock County, Minnesota)
Built 1908 by the Hewett Bridge Co.; relocated here 1990
Kingpost pony truss bridge on a footpath within Schoneman Park, south of Luverne
Open to pedestrian traffic

Scioto River CR 4 Bridge (Pickaway County, Ohio)
Built 1914 by the Oregonia Bridge Co.; rehabilitated 1983
Through truss bridge over Scioto River on CR 4
Open to traffic

Scioto-Darby Road Bridge (Pickaway County, Ohio)
Built 1910 by the The Oregonia Bridge Co., Lebanon, Oh.; rehabilitated 1986
Through truss bridge over Big Darby Creek on Scioto-Darby Road (CR 22)
Open to traffic

Scipio Covered Bridge (Jennings County, Indiana)
Built 1886; rehabilitated 1984
Covered bridge over Sand Creek on CR 575W
Open to traffic

Scottsboro Bridge (Jackson County, Alabama)
Built 1930
Cantilevered through truss bridge over Tennessee River on AL 35 at Scottsboro
Open to traffic

Searcy Bridge (White County, Arkansas)
Lost swing through truss bridge over Little Red River on US 67W (now Davis Road, CR 76)
No longer exists

Second Boonville Railroad Bridge (Cooper County, Missouri)
Built 1894-96, replacing the first Boonville bridge, but reusing the substructure. Replaced by the third and current Boonville bridge in 1932 on a slightly different
Lost through truss swing bridge over the Missouri River on the MKT Railroad at Boonville
Replaced by a new bridge

Second Creek Road Bridge (Clay County, Missouri)
Built or relocated here ca. 1970
Pony truss bridge over Second Creek on Second Creek Road at Smithville
Open to two-lane traffic

Second Hannibal Bridge (Jackson County, Missouri)
Built 1917 to replace First Hannibal Bridge; auto deck abandoned 1956
Through truss bridge over Missouri River on the BNSF Railroad in Kansas City
Open to railroad traffic

Seigrist's Mill Covered Bridge (Lancaster County, Pennsylvania)
Built 1885
Covered bridge over Big Chickies Creek on Seigrist Road
Open to traffic

Selby Avenue Bridge (Ramsey County, Minnesota)
Built 1890; modified 1960; closed to trafic in 1989; replaced 1993
Lost skewed through truss bridge over the Soo Line Railroad and Ayd Mill Road on Selby Avenue
Replaced by new bridge

SEMO Port Railroad Bridge (Cape Girardeau County, Missouri)
Through truss bridge over the Diversion Channel on the SEMO Port Railroad south of Cape Girardeau
Open to railroad traffic

Seneca Bridge (La Salle County, Illinois)
Built 1932; rehabilitated 1986
Four-span through truss bridge over the Illinois River on IL 170 at Seneca
Open to two-lane traffic

Seneca Bridge (Newton County, Missouri)
Through truss pedestrian bridge over Lost Creek in Seneca along MO 43
Open to pedestrians only

Service Road Bridge (Cuyahoga County, Ohio)
Built 1922 by the King Bridge Co.
Through truss bridge over the Cuyahoga River on a service road within the Cuyahoga Valley National Park
Open to authorized National Park vehicles only

Settles Bridge (Forsyth County, Georgia)
Built 1896; abandoned 1950's
Abandoned pratt through truss bridge over Chattahoochee River on former Settles Bridge Road
Abandoned

Sevenmile Bridge (Mineral County, Colorado)
Built 1935; relocated 1981
Deck truss bridge over the Rio Grande at the entrance to Marshall Park Campground, just off CO 149
Open to traffic

Severn Creek KY 355 Bridge (Owen County, Kentucky)
Built 1942
Through truss bridge over Severn Creek on KY 355
Open to traffic

Sewell Bridge (Ripley County, Missouri)
Built 1924, but may have been moved to this location from elsewhere
Pony truss bridge over Little Black River on CR H-5, just north of Hemenway Bridge
Open to traffic

Shackelford Bridge (Cooper County, Missouri)
Built 1913
Through truss bridge over Lamine River on Shackelford Bridge Road
Open to traffic

Shaw Bridge (Saline County, Arkansas)
Built ca. 1920; replaced 1997
Lost through truss bridge over Saline River on Grand Avenue (CR 27) south of Benton
Replaced by a new bridge

Shaw Road Bridge (Jones County, Iowa)
Built 1924; rehabilitated 1954
Two-span through truss bridge over Wapsipinicon River on Shaw Road
Open to traffic

Shawnee Ford Bridge (Franklin County, Missouri)
Built ca. 1920; rehabilitated 1990
Through truss bridge over Bourbeuse River on Shawnee Ford Road beyond the end of Route AN
Open to one-lane traffic with a 19 ton weight limit

Shelby Street Bridge (Davidson County, Tennessee)
Built 1907-09; rehabilitated for pedestrian use in 2003
Three-span through truss bridge over Cumberland River on Shelby Street in downtown Nashville
Open to pedestrians only

Shell Rock River Bridge (Cerro Gordo County, Iowa)
Built 1927; replaced 2003
Lost through truss bridge over Shell Rock River on a local road
No longer exists

Shell Rock River Bridge (Cerro Gordo County, Iowa)
Built ca. 1950
Through truss bridge over Shell Rock River on a local road
Open to traffic

Shell Rock River Bridge at Northwood (Worth County, Iowa)
Pratt pony truss bridge over Shell Rock River on pedestrian trail at Hurd Park in Norwood
Open to pedestrians

Shenk's Mill Covered Bridge (Lancaster County, Pennsylvania)
Built 1855; rehabilitated 1977
Covered bridge over Big Chickies Creek on Erisnan Road
Open to traffic

Shieldstown Covered Bridge (Jackson County, Indiana)
Built 1876 by J.J. Daniels
Covered bridge over East Fork White River
Open to pedestrians only

Shinn Covered Bridge (Washington County, Ohio)
Built 1886 by E.B. Henderson; rehabilitated 1998
Covered bridge over West Branch Wolf Creek on Palmer Road (TR 447)
Unknown status

Shirley AR 9 Bridge (Van Buren County, Arkansas)
Lost through truss bridge over Middle Fork Little Red River on AR 9 at Shirley
Replaced by a new bridge in 1960

Shirley Bridge (Van Buren County, Arkansas)
Built ca. 1910 as a railroad bridge; rehabilitated 1988
Through truss bridge over Middle Fork Little Red River on River Road (CR 125) just outside of Shirley in Shirley
Open to one-lane traffic

Shoemaker Covered Bridge (Columbia County, Pennsylvania)
Built 1881
Covered bridge over West Branch Run on Shoemaker Bridge Road (PA 4027)
Open to pedestrians only

Short Mountain Creek Bridge (Logan County, Arkansas)
Built 1928 by the Virginia Bridge & Iron Co.; rehabilitated 1976
Pony truss bridge over Short Mountain Creek on CR 64
Open to traffic

Short Road Bridge (Montgomery County, Missouri)
Built ca. 1910
Through truss bridge over Loutre River on Short Road
Open to traffic

Shreveport Railroad Bridge (Bossier Parish, Louisiana)
Rail bridge over Red River in Shreveport. Rail line is active. Build date unknown.
Through truss bridge over Red River on railroad in Shreveport
Open to traffic

Sibley Railroad Bridge (Jackson County, Missouri)
Originally built 1887-88 as a three-span Whipple through truss; later reconstructed with Parker through truss spans
Three-span through truss railroad bridge over the Missouri River at Sibley
Open to railroad traffic

Side Ditch Entrance Bridge (Dubuque County, Iowa)
Built 1900
Pony truss bridge over Side Ditch on an entrance road
Open to traffic

Silver Bridge (Franklin County, Arkansas)
Built ca. 1929 by the Lakeside Bridge & Steel Co.; rehabilitated 1976; closed to traffic Nov. 2006
Three-span through truss bridge over Mulberry River on CR 67 (Wire Road) just north of I-40 in Mulberry
Closed to traffic

Silver Creek Bridge (Minnehaha County, South Dakota)
Built 1938
Through truss bridge over Silver Creek on 255th Street, 3 mi. north and 1 mi. east of Renner
Unknown status

Silver Creek Bridge (Cedar County, Missouri)
Lost pony truss bridge over Silver Creek on CR 1651
No longer exists

Silver Creek IN 403 Bridge (Clark County, Indiana)
Built ca. 1940; rehabilitated 1976
Through truss bridge over Silver Creek on IN 403
Open to traffic

Sim Smith Covered Bridge (Parke County, Indiana)
Built 1883 by J.A. Britton; rehabilitated 1977
Covered bridge over Leatherwood Creek on CR N50W
Open to traffic

Singer Bridge (Miller County, Missouri)
Built ca. 1910
Through truss bridge over Tavern Creek on Singer Bridge Road (CR 52-60) just off MO 52 near St. Elizabeth
Open to one-lane traffic on a gravel road

Singing Bridge (Franklin County, Kentucky)
Built 1893; rehabilitated 1956
Through truss bridge over Kentucky River on US 60 in Frankfort
Open to traffic

Sinking Creek KY 144 Bridge (Breckinridge County, Kentucky)
Built ca. 1950
Through truss bridge over Sinking Creek on KY 144
Open to traffic

Sixth Street Bridge (Greene County, Arkansas)
Built 1934; rehabilitated 1995; removed sometime after 1997
Lost pony truss bridge over Eight Mile Creek on North Sixth Street in Paragould
No longer exists

Smackover Creek AR 7 Bridge (Union County, Arkansas)
Replaced 1990
Lost pony truss bridge over Smackover Creek on AR 7 (northbound)
Replaced by a new bridge

Smith Covered Bridge (Rush County, Indiana)
Built 1877 by A. M. Kennedy; rehabilitated 1996
Covered bridge over Flatrock River on CR 150 North
Open to traffic

Smith Creek Katy Trail Bridge (Warren County, Missouri)
Through truss bridge over Smith Creek on the Katy Trail just off MO 94
Open to pedestrians and bicyclists only

Smith Creek MO 94 Bridge (Warren County, Missouri)
Built 1934
Pony truss bridge over Smith Creek on MO 94
Open to two-lane traffic

Smithfield Bridge (Delaware County, Indiana)
Built 1902
Through truss bridge over White River on CR 170 South
Open to traffic

Smithfield Street Bridge (Allegheny County, Pennsylvania)
Built 1883 under the direction of engineer Gustav Lindenthal
Two-span lenticular through truss bridge over Monongahela River on Smithfield Street in Pittsburgh
Open to four lanes of traffic

Smithland Bridge (Livingston County, Kentucky)
Built 1931; rehabilitated 1954
Through truss bridge over Cumberland River on US 60 at Smithland
Open to traffic

Smiths Creek Bridge (Franklin County, Arkansas)
Built 1928 by the Virginia Bridge & Iron Co.; replaced and relocated to a nearby field
Pony truss bridge formerly over Smiths Creek on AR 309
Closed to all traffic

Smoky Hill River Bridge (McPherson County, Kansas)
Through truss bridge over Smoky Hill River on Abandoned Railroad Line
Open to pedestrians

Smoky Hill River Bridge (Dickinson County, Kansas)
Built 1915
Through truss bridge over Smoky Hill River on Oat Road, 2.5 mi. east and 0.8 mi. south of Detroit
Closed to all traffic(?)

Smoky Hill River Bridge (McPherson County, Kansas)
Built 1919; rehabilitated 1989
Through truss bridge over Smoky Hill River on Syensk Road
Open to traffic

Smyrna Road Bridge (Christian County, Missouri)
Built 1912 by the Canton Bridge Co. of Canton, Ohio
Through truss bridge over Finley Creek on Smyrna Road northeast of Ozark
Open to one-lane traffic on a paved road

Snag Creek Bridge (Cedar County, Missouri)
Built ca. 1910
Pony truss bridge over Snag Creek on CR 1101
Open to traffic

Sni-A-Bar Creek Bridge (Lafayette County, Missouri)
Built 1929
Through truss bridge over Sni-A-Bar Creek on MO 224 (Old US 24) at Wellington
Open to traffic

Snow Hill Covered Bridge (Franklin County, Indiana)
Built 1894 by William Butts and John Horn; rehabilitated 1987
Covered bridge over Johnson Fork Whitewater River on Snow Hill Road
Open to traffic

Snyder Covered Bridge (Columbia County, Pennsylvania)
Built 1876
Covered bridge over Roaring Creek on Rarig Road, southeast of Catawissa
Open to traffic

Sonestown Covered Bridge (Sullivan County, Pennsylvania)
Built 1900; rehabilitated 2001
Covered bridge over Muncy Creek on Champion Road (TR 310)
Open to traffic

South Big River Bridge (St. Francois County, Missouri)
Built 1924; made obsolete by new bridge in 1957
Through truss bridge over Big River on Old US 67 in Desloge
Open to two-lane traffic

South Boat Ditch Bridge (Clark County, Arkansas)
Built ca. 1928
Through truss bridge over South Boat Ditch on CR 8
Open to one-lane traffic

South Boat Ditch US 67 Bridge (Clark County, Arkansas)
Built 1931 by the Virginia Bridge & Iron Co. of Roanoke, Virginia
Pony truss bridge over South Boat Ditch on US 67
Open to two-lane traffic

South Boston Road Bridge (Washington County, Indiana)
Built ca. 1930
Pony truss bridge over Middle Fork Blue River on Canton/S. Boston
Open to traffic

South Canon Bridge (Garfield County, Colorado)
Built 1914-15 by the Missouri Valley Bridge & Iron Co.
Closed through truss bridge over the Colorado River just off I-70, west of Glenwood Springs
Closed to all traffic

South Cicero Avenue Bridge (Cook County, Illinois)
Built 1927; widened and rehabilitated 1966
Bascule bridge over the Chicago S&S Canal on S. Cicero Avenue (IL 50) in Chicago
Open to four lanes of traffic

South Deer Creek Bridge (Douglas County, Oregon)
Built 1967
Truss bridge over South Deer Creek on CR 16
Open to traffic

South Fork 186A Bridge (Christian County, Illinois)
Pony truss bridge over South Fork Sangamon River on TR 186A, 5 mi. southwest of Rosamond
Open to traffic

South Fork Blue River Main Street Bridge (Washington County, Indiana)
Built 1884; rehabilitated 1987 and 2007
Through truss bridge over South Fork Blue River on Main Street in New Pekin
Open to traffic

South Fork Bridge (Christian County, Illinois)
Pony truss bridge over South Fork Sangamon River on TR 343, 8 mi. west of Rosamond
Open to traffic

South Fork Bridge (Christian County, Illinois)
Pony truss bridge over South Fork Sangamon River on TR 307A, 7 mi. east of Morrisonville
Open to traffic

South Fork Cane Creek Bridge (Carter County, Missouri)
Built 1922
Pony truss bridge over South Fork of Cane Creek south of Ellsinore on CR 256 (Old US 60)
Open to traffic with no posted weight limit

South Fork Root River Bridge (Fillmore County, Minnesota)
Built 1931
Pony truss bridge over South Fork Root River on MN 43
Open to traffic

South Fork TR 343 Bridge No. 2 (Christian County, Illinois)
Pony truss bridge over South Fork Sangamon River on TR 343, 8 mi. west of Rosamond
Open to traffic

South Fork US 421 Bridge (Clinton County, Indiana)
Built 1940; rehabilitated 1985
Pony truss bridge over South Fork Wildcat Creek on US 421
Open to traffic

South Fork US 65 Bridge (Van Buren County, Arkansas)
Built 1931 by M.K. Orr of Little Rock; rehabilitated 1962
Three-span cantilevered deck truss bridge over South Fork Little Red River on US 65 in Clinton
Open to traffic

South Harpeth River TN 100 Bridge (Davidson County, Tennessee)
Built 1929
Through truss bridge over South Harpeth River on TN 100 in Nashville
Open to traffic

South Island Bridge (Will County, Illinois)
Pony truss bridge over East Branch Kankakee River on West Street, 0.25 mi. north of Kahler Rd
Open to one-lane traffic

South Lafave River AR 7 Bridge (Perry County, Arkansas)
Built 1933 by McEachin and McEachin, Inc., of Little Rock
Two-span pony truss bridge over South Fourche Lafave River on AR 7
Open to two-lane traffic

South Moreau Creek Route D Bridge (Cole County, Missouri)
Built 1956
Through truss bridge over South Moreau Creek on Route D
Open to one-lane traffic

South River CR 402 Bridge (Marion County, Missouri)
Built ca. 1930, replacing an earlier bridge
Pony truss bridge over South River on CR 402, east of Palmyra
Open to one-lane traffic

South Umpqua River I-5 Bridge (Douglas County, Oregon)
Built 1965; rehabilitated 1983
Deck truss bridge over South Umpqua River on Southbound I-5
Open to traffic

Southwest Fifth Street Bridge (Polk County, Iowa)
Built 1898 by J.H. Killmar; closed to traffic in 1993; rehabilitated 1998
Three-span through truss bridge over Raccoon River on SW 5th Street in Des Moines
Open to pedestrians only

Sparks Ferry Bridge (Jackson County, Indiana)
Built ca. 1890; closed to traffic 2006
Two-span through truss bridge over East Fork White River on Sparks Ferry Road
Open to pedestrians only

Spavinaw Creek Railroad Bridge (Benton County, Arkansas)
Lost Waddell "A" through truss bridge over Spavinaw Creek on the KCS Railroad near Gravette
No longer exists

Speakman Covered Bridge (Chester County, Pennsylvania)
Built 1881
Covered bridge over Buck Run T Branch on Frog Hollow Road
Open to traffic

Spencer Creek Covered Bridge (St. Charles County, Missouri)
Built 1976 by Roger Adams
Replica covered bridge over Spencer Creek at Spencer Creek Subdivision in St. Peters
Open to traffic

Spencer's Crossing Bridge (Anderson County, Kansas)
Built 1885 by the Wrought Iron Bridge Co.; replaced 2005
Through truss bridge over Pottawatomie Creek, 0.6 mi. west and 0.1 mi. north of Greeley
Preserved

Spencerville Covered Bridge (De Kalb County, Indiana)
Built 1873 by John McKay
Covered bridge over Saint Joseph River on CR 68
Open to traffic

Spillman Creek Bridge (Lincoln County, Kansas)
Built ca. 1910
Pony truss bridge over Spillman Creek, 1.3 mi. north and 2.0 mi. east of Vesper
Open to traffic

Splice Creek Road Bridge (Moniteau County, Missouri)
Built or relocated here ca. 1930
Pony truss bridge over Splice Creek on East Splice Creek Road near Lupus
Open to one-lane traffic