Scofield covered bridge (Brown County, Ohio)
The bridge was replaced in the early 90's and the timbers were placed in storage.
Lost Multiple Kingpost through truss bridge over Beetle Creek on Martin Hill Road in Huntington
Replaced by new bridge

Scott Highway Bridge (Lenawee County, Michigan)
Built 1897; Closed 1989; Replaced 1998
Lost Pratt through truss bridge over Black Creek on Scott Hwy near Blissfield
Replaced by new bridge

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

Seal Bridge (Franklin County, Indiana)
Was originally connected to a barn that has since collapsed. Also originally had doors on it.
Abandoned queenpost through truss bridge over Big Cedar Creek
Abandoned

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 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

Secrest Ferry Bridge (Monroe County, Indiana)
Pennsylvania through truss bridge over West Fork White River
Open to pedestrians

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

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

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

Seven Mile Creek TR 331 Bridge (Preble County, Ohio)
Built 1906 by the Indiana Bridge Co. of Muncie, In.
Through truss bridge over Seven Mile Creek on TR 331
Open to traffic

Seven Mile Creek TR 333 Bridge (Preble County, Ohio)
Built 1931 by the Brookville Bridge Co. of Brookville, Oh.
Through truss bridge over Seven Mile Creek on TR 333
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

Severn's Bridge (Gibson County, Indiana)
Built 1908 by the Indiana Bridge Co.
Through truss bridge over Patoka River on Old IN 65
Closed to all 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 Bridge (Warren County, Indiana)
Built 1905; rehabilitated 1980
Through truss bridge over Wabash River on CR 100 East
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

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

Sherburne Bridge (Fleming County, Kentucky)
Originally a privately owned toll bridge. Lost to arson on April 6, 1981.
Lost Howe through truss bridge over Licking River in Sherburne
Destroyed by fire

Sheridan Road Bridge (Saginaw County, Michigan)
Built 1923; Replaced 1993
Lost Pratt through truss bridge over Flint River on Sheridan Road in Taymouth Township
Replaced by new bridge

Sheyenne River Bridge (Griggs County, North Dakota)
Built 1912
Through truss bridge over Sheyenne River on a county highway, 1 mi. east and 8 mi. north of Cooperstown in Romness Township
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

Shippingsport Bridge (La Salle County, Illinois)
Lost 7 span through truss vertical lift bridge, replaced with a modern span.
Lost through truss bridge over Illinois River on once carried US 51 and later IL 351
Replaced by new bridge

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 1908 by the Wisconsin Bridge & Iron Co. 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 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

Siam Steel Bridge (Carter County, Tennessee)
Built 1941
One lane, two-span Pratt Truss bridge over Watauga River on Steel Bridge Road (County Road 1011)
One lane bridge, 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

Silver Bridge (Franklin County, Arkansas)
Built ca. 1929 by the Lakeside Bridge & Steel Co.; rehabilitated 1976; closed to traffic Nov. 2006; Reopened Nov 2007
Three-span through truss bridge over Mulberry River on CR 67 (Wire Road) just north of I-40 in Mulberry
Open to traffic with 3 Ton weight Limit

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 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 Viaduct (Des Moines County, Iowa)
Built 1996; Enhanced 1903; Replaced 1993
Lost Pratt through truss bridge over Over BNSF Railroad & Valley Street on 6th Street in Burlington
Replaced by new bridge

Skillet Fork Bridge (Marion County, Illinois)
Built 1915
Through truss bridge over Skillet Fork on CH 30
Open to traffic

Skillet Fork Bridge (Marion County, Illinois)
Built 1946
Through truss bridge over Skillet Fork Creek on FAS 795, 1 mi. west of Helm
Open to traffic

Smalling Bridge (Carter County, Tennessee)
Built 1941
Pratt Truss bridge over Watauga River on Smalling Road
Open to traffic, one-lane bridge

Smart Ditch Bridge (Jackson County, Indiana)
Through truss bridge over Smart Ditch on CR 600 East
Open to traffic

Smiley Bayou Bridge (Yell County, Arkansas)
Built 1924 by the International Steel & Iron Co.
Abandoned through truss bridge over Smiley Bayou on CR 5
Abandoned

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 Road Bridge (Rock County, Wisconsin)
Built 1910
Single lane Pratt through truss bridge over Turtle Creek on Smith Road
Open to 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

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

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

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

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

Sni-A-Bar Creek Route H Bridge (Jackson County, Missouri)
Built 1929
Pratt through truss bridge over Sni-A-Bar Creek on Route H
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

Snowden Bridge (Richland County, Montana)
Built 1914; retrofitted to also allow vehicular toll traffic in 1925
Vertical-lift through truss bridge over the Missouri River on the BNSF Railroad
Open to railroad traffic

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

Sock Road Bridge (Dodge County, Wisconsin)
Built 1893; Demolished 1980
Lost Pratt through truss bridge over Beaver Dam River on Sock Road in Town of Lowell
Demolished 1980, replaced by new bridge

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

Sonora Road Bridge (Preble County, Ohio)
Built 1902
Through truss bridge over Twin Creek on TR 455
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 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 County Line Road Bridge (Montcalm County, Michigan)
Built 1880; Replaced 1996; Relocated
Relocated Pratt through truss bridge that was over Flat River on South County Line Road near Greenville
Relocated to Fred Meijer Heartland Trail and replaced by new bridge

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 Holston River CSX Railroad Bridge (Sullivan County, Tennessee)
Built in 1907 as part of first segment of the South & Western RR, later the Carolina, Clinchfield & Ohio, later the Clinchfield, now the CSX Railroad
Howe Truss railroad bridge over the South Fork Holston River on the CSX (formerly Clinchfield) Railroad
Open to rail 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 Holston River Bridge (Sullivan County, Tennessee)
Built 1950
Subdivided Warren through truss bridge over South Holston River on U.S. 421 (State Highway 34)
Open to 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 Umpqua River Bridge (Douglas County, Oregon)
Replaced 2000
Lost Through truss bridge over South Umpqua River on CR 387 in Dillard
Built in 1939, Replaced by new bridge in 2000

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

Spalding Bridge (Menominee County, Michigan)
Built 1918; Moved 1934; Altered in 1988; Replaced 1995; Relocated 1997
Relocated Pratt pony truss bridge over Big Cedar River on Old US 2/Old US 41 in Spalding
Replaced by new bridge; Relocated 1997

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 1912
Through truss bridge over Spillman Creek, 3.7 mi. west of Lincoln
Open to traffic

Split Rock Creek Railroad Bridge (Minnehaha County, South Dakota)
This bridge was part of a plan to convert Split Rock Creek into a lake in the 1950s.
Abandoned lattice through truss bridge over Split Rock Creek on abandoned railroad 0.3 miles east of Split Rock Blvd. near Mc Hardy Park
Abandoned

Spring City Bridge (Rhea County, Tennessee)
Built 1931
Lost through truss bridge over Piney River on US 27/TN 29 in Spring City
No longer exists--replaced by concrete I-beam box girder bridge

Spring Creek 1700N Bridge (Iroquois County, Illinois)
Built 1898
Lost through truss bridge over Spring Creek on 1700N Road
Closed to all traffic after suffering damage in a car accident

Spring Creek 1900N Bridge (Iroquois County, Illinois)
Built 1916
Through truss bridge over Spring Creek on 1900N Road
Open to traffic

Spring Creek Road Bridge (Ellis County, Texas)
Built 1890
Through truss bridge over Grove Creek on Spring Creek Road in Waxahachie
Preserved awaiting full restoration

Spring Hill Road Bridge (Christian County, Missouri)
Built 1914 by the Canton Bridge Co.; demolished 2006
Lost through truss bridge over Finley Creek on Spring Hill Road northeast of Sparta
No longer exists

Spring River CR 1040 Bridge (Lawrence County, Missouri)
Built ca. 1930
Through truss bridge over Spring River on CR 1040
Open to traffic

Spring River Route O Bridge (Jasper County, Missouri)
Built 1935
Through truss bridge over Spring River on Route O
Open to two-lane traffic

Spring Valley Bridge (Bureau County, Illinois)
Built 1934; rehabilitated 1989
Five-span through truss bridge over the Illinois River on IL 89 south of Spring Valley
Open to two-lane traffic