There are 7,794 bridges in this category · Only showing 4,097 bridges with photos
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Functionally obsolete

From: 2015 "Status of the Nation’s Highways, Bridges, and Transit: Conditions and Performance" report to Congress

Functional obsolescence in general is a function of the geometrics (e.g., broad roadway width, load carrying capacity, clearances, approach roadway alignment) of the bridge in relation to the geometrics required by current design standards. The magnitude of such deficiencies determines whether a bridge is classified as “functionally obsolete.”

Silver Creek Memphis Road Bridge (Clark County, Indiana)
Built ca. 1920; replaced 1998
Lost pony truss bridge over Silver Creek on Memphis Road
Replaced by new bridge

Silver King Road Bridge (Pinal County, Arizona)
Built 1916
Concrete arch bridge over Queen Creek on Silver King Road in Queen Valley
Open to traffic

Simon Kenton Memorial Bridge (Mason County, Kentucky)
Built 1931; Bypassed by the cable-stayed William H. Harsha Bridge in 2000, rehabed in 2003-2004
Suspension bridge over Ohio River on Business US 62/68 in Maysville
Open to traffic

Simpsons Mill Road Bridge (Frederick County, Maryland)
Built ca. 1890; rehabilitated 1998
Through truss bridge over Little Pipe Creek on Simpsons Mill Road
Open to traffic

Sinking Creek US 31 Bridge (Giles County, Tennessee)
Built 1922; rehabilitated 1946
Concrete tee beam bridge over Sinking Creek on Fap 7
Open to traffic

Sipsey Bridge (Walker County, Alabama)
Built 1930, bypassed by a new bridge in 1999
Bridge over Sipsey Fork of the Black Warrior River and abandoned branch of SLSF Rwy on Old alignment of Campbellville Rd (County Rd 22)
Abandoned

Sir Francis Drake Bridge (Marin County, California)
Built 1926
Concrete arch bridge over Corte Madera Creek on Sir Francis Drake Road in Ross
Open to traffic

Sisler Bridge (Carroll County, Illinois)
Built 1925
Bridge over Branch of E Fork Of Plum R on N Old Galena Trail
Open to traffic

Sister Bridge I: Roberto Clemente Bridge (Allegheny County, Pennsylvania)
Built 1928; rehabilitated 1995
Suspension bridge over Allegheny River on Sixth Street in Pittsburgh
Open to traffic

Sister Bridge II: Andy Warhol Bridge (Allegheny County, Pennsylvania)
Built 1926; rehabilitated 1977
Suspension bridge over Allegheny River on Seventh Street in Pittsburgh
Open to traffic

Sister Bridge III: Rachel Carson Bridge (Allegheny County, Pennsylvania)
Built 1926; rehabilitated 1993
Suspension bridge over Allegheny River on Ninth Street in Pittsburgh
Open to traffic

Six Mile Creek Bridge (Morris County, Kansas)
Built ca. 1910
Stone arch bridge over Six Mile Creek, 1.5 mi. east and 1.5 mi. north of Burdick
Open to traffic

Six Mile Creek Bridge (Shawnee County, Kansas)
Built 1923
Rainbow arch bridge over Six Mile Creek on SW 97th Street, 1.5 mi. west of Wakarusa
Open to traffic

Six Mile Creek-CR 900E Arch Bridge (Hancock County, Indiana)
Built 1935; replaced 2000
Lost concrete arch bridge over Six Mile Creek on CR 900 E
Replaced by new bridge

Sixes Bridge Road Bridge (Frederick County, Maryland)
Built 1910; rehabilitated 1995
Two-span through truss bridge over Monocacy River on Sixes Bridge Road
Open to traffic

Sixmile Creek CR 300S Bridge (Wells County, Indiana)
Built ca. 1920
Arch bridge over Sixmile Creek on CR 300 South
Open to traffic

Sixmile Creek CR 500E Bridge (Wells County, Indiana)
Lost pony truss bridge over Sixmile Creek on CR 500E
Replaced by new bridge

Sixpenny Creek Bridge (Berks County, Pennsylvania)
Built 1907 by the Ferro Concrete Co.
Concrete arch bridge over Sixpenny Creek on TR 423 (School Street)
Open to traffic

Sixth Street Bridge (Kent County, Michigan)
Built 1886 by the Massillon Bridge Co.; rehabilitated 1978
Through truss bridge over Grand River on Sixth Street in Grand Rapids
Open to traffic

Sixth Street Bridge (Minnehaha County, South Dakota)
Built 1975
Bridge over Big Sioux Rv on Sixth Street E of Phillips Ave. in Sioux Falls
Open to traffic

SJVR - Kings River Bridge (Fresno County, California)
Warren Deck truss railroad bridge
Open to traffic

Skagit River Bridge (Skagit County, Washington)
Built 1959
Through truss bridge over Skagit River on WA 9
Open to traffic

Ski Bowl Road Bridge (Greene County, New York)
Built 1935; rehabilitated 1962
Through truss bridge over Schoharie Creek on Ski Bowl Road in Hunter
Open to pedestrians only

Skiberene Bridge (Clatsop County, Oregon)
Built 1930
Concrete deck girder bridge over Necanicum River on U.S. 101/U.S. 26
Open to traffic

Skookumchuck River Bridge (Lewis County, Washington)
Built 1928
Through truss bridge over Skookumchuck River on WA 507 in Centralia
Open to traffic

Slate Covered Bridge 29-03-06 (Cheshire County, New Hampshire)
Built 1862; destroyed by arson March 8, 1993; reconstructed 2001
Reconstructed covered bridge over Ashuelot River on Westport Village Road in Swanzey
Open to traffic

Slate Creek Bridge (Idaho County, Idaho)
Built 1932
Pony truss bridge over Slate Creek on CR 95
Open to traffic

Slate Creek CR 1000S Bridge (Jennings County, Indiana)
Built 1905
Concrete arch bridge over Slate Creek on CR 1000 South
Open to traffic

Slaughterhouse Covered Bridge 45-12-09 (Washington County, Vermont)
Built 1872
Covered bridge over Dog River on Slaughterhouse Road (C3014) in Northfield
Open to traffic

Slayton Settlement Road Bridge (Niagara County, New York)
Built 1911; rehabilitated 1993
Through truss bridge over Erie Canal on Slayton Settlement Road
Open to traffic

Sloans Ferry Bridge (Gaston County, North Carolina)
Built 1933
Steel stringer bridge over Catawba River on U.S. Highways 29 & 74 (Wilkinson Boulevard)
Open to traffic

Sloat Poplar Valley Road Bridge (Plumas County, California)
Built 1959, replaced unknown year.
Deck plate girder bridge over Middle Fork Feather River on Sloat-Poplar Valley Road
Replaced by Bailey truss bridge

Sloop Channel Bridge (Nassau County, New York)
Built 1934; rehabilitated 1993
Bascule bridge over Sloop Channel on Meadowbrook State Parkway
Open to traffic

Slough Creek Bridge (Cooper County, Missouri)
Built 1930
Concrete tee beam bridge over Slough Creek on MO 41
Open to traffic

Smith Covered Bridge 14-70-01 (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 Bridge (Pacific County, Washington)
Built 1929
Concrete tee beam bridge over Smith Creek on US 101
Open to traffic

Smith Fork Creek Bridge (Wilson County, Tennessee)
Built 1928 by the Luten Bridge Co.
Arch bridge over Smith Fork Creek on Greenvale Rd (NFA 2032)
Open to traffic

Smith Fork Creek Bridge (Wilson County, Tennessee)
Built 1927 by the Luten Bridge Co.
Two-span arch bridge over Smith Fork Creek on Watertown Rd (NFA 2032)
Open to traffic

Smith River Bridge (Henry County, Virginia)
Built 1927
Concrete arch bridge over Smith River on Greensboro Road (U.S. 58) in Martinsville
Open to traffic

Smith River Bridge (Cascade County, Montana)
Built 1908
Through truss bridge over Smith River on CR 410
Open to traffic

Smith Street Bridge (Monroe County, New York)
Built 1910
Warren pony truss bridge over Erie Canal on Smith Street in Brockport
Open to traffic

Smith's Bridge 08-02-01 #2 (New Castle County, Delaware)
Built 1839 (Burr Truss Covered Bridge); Reconstructed 2002 (see Description for details)
Covered bridge with steel beams over Brandywine Creek on Smith Bridge Road
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

Smithton High Level Bridge (Westmoreland County, Pennsylvania)
Built 1956; rehabilitated 2002
Deck truss bridge over Youghiogheny River on I-70
Open to traffic

Smokey Road Overpass (Fulton County, Illinois)
Built 1917
Pony truss bridge over the BNSF Railroad on E Smokey Rd
Open to traffic

Smoky Hill River K-147 Bridge (Trego County, Kansas)
Built 1952; rehabilitated 1993
Steel through arch over Smoky Hill River on K-147 at Cedar Bluff Lake Spillway
Open to traffic

Smyth Road Bridge (Oconto County, Wisconsin)
Built 1928
Through truss bridge over North Branch Oconto River on Smyth Road
Open to traffic

Snag Creek Bridge (Cedar County, Missouri)
Built 1915 by the Canton Bridge Co.
Pony truss bridge over Snag Creek on CR 1101
Open to traffic

Snail Creek Bridge #44 (Franklin County, Indiana)
Built 1905
Slab bridge over Snail Creek on Snail Creek Road
Open to traffic

Snake Creek Bridge (Blaine County, Montana)
Built 1911
Pony truss bridge over Snake Creek on CR 323
Open to traffic

Snake Ravine Bridge (Stanislaus County, California)
Built 1918
Concrete arch bridge over Snake Ravine on CA 132
Open to traffic

Snapp Creek Bridge (Knox County, Indiana)
Built ca. 1930
Pony truss bridge over Snapp Creek on CR 200W
Open to Traffic

Snipe Creek Bridge (Jasper County, Iowa)
Built 1921
Pony truss bridge over Snipe Creek on 115th Avenue
Open to traffic

Snipe Hollow Branch Bridge (Jo Daviess County, Illinois)
Built 1920
Bridge over Snipe Hollow Branch on W. Longhollow Rd
Open to traffic

Snook's Covered Bridge 38-05-23 (Bedford County, Pennsylvania)
Built 1883; rehabilitated 1994
Covered bridge over Dunnings Creek on Fish Hatchery Rd (TR 578)
Open to traffic

Snow Hill Bridge (Worcester County, Maryland)
Built 1932
Bascule bridge over Pocomoke River on MD 12 in Snow Hill
Open to traffic

Snyder Road Bridge (Lincoln County, Missouri)
Bridge over Spring Branch on Snyder Road
Open to traffic

So Main Street Bridge (Madison County, Kentucky)
Built 1954
Concrete culvert bridge over Brushy Fork Creek on South Main Street
Open to traffic

Soda Creek Bridge (Napa County, California)
Built 1910; rehabilitated 1955
Stone arch bridge over Soda Creek on CA 128
Open to traffic

Soda Creek Road Bridge (Shasta County, California)
Built 1960
Bailey truss bridge over South Fork Soda Creek on Soda Creek Road
Open to traffic

Sol Duc River Bridge (Clallam County, Washington)
Built 1941
Through truss bridge over Sol Duc River on US 101
Open to traffic

Soldier Creek Bridge (Osage County, Kansas)
Built ca. 1950
Pony truss bridge over Soldier Creek, 4.5 mi. west and 0.6 mi. south of Burlingame
Open to traffic

Soldiers Creek Bridge (Cotton County, Oklahoma)
Built 1931
Pony truss bridge over Soldiers Creek on OK 5 in Walters
Open to traffic

Soldiers Home Bridge (Hennepin County, Minnesota)
Built 1908
Steel arch bridge over Minnehaha Creek on Soldiers Road in Minneapolis
Open to pedestrians only

Soledad Canyon Road Santa Clara River Bridge (Mill Canyon) (Los Angeles County, California)
Built 1952
Steel stringer bridge over Santa Clara River on Soledad Cyn Road
Open to traffic

Soquel Drive Bridge (Santa Cruz County, California)
Built 1928
Concrete arch bridge over Aptos Creek on Soquel Drive in Aptos
Open to traffic

Sorlie Memorial Bridge (Polk County, Minnesota)
Built 1929
Through truss bridge over Red River on Business US 2 in East Grand Forks
Open to traffic

Sorrel Creek Bridge (Garland County, Arkansas)
Built circa 1920, Refurbished 1930
Small concrete arch bridge over Sorrel Creek on AR 7
Open to two-lane traffic

Soto Street Overpass (Los Angeles County, California)
Built 1936
Plate girder bridge over Mission Road/Huntington Drive on Soto Street in Los Angeles
Open to traffic

Soto Street Viaduct (Los Angeles County, California)
Built 1936
Steel stringer bridge over Valley Blvd/Sptco on Soto Street in Los Angeles
Open to traffic

Souhegan River Bridge (Hillsborough County, New Hampshire)
Built 1931
Stone arch bridge over Souhegan River on NH 13 in Milford
Open to traffic

South Andrews Avenue Bridge (Broward County, Florida)
Built 1981
Bascule bridge over New River on South Andrews Avenue in Fort Lauderdale
Open to traffic

South Avenue Bridge (Amador County, California)
Built 1925
Steel stringer bridge over South Fork Jackson Creek on South Avenue
Open to traffic

South Branch Little Wolf River Bridge (Waupaca County, Wisconsin)
Built 1907
Stone arch bridge over South Branch Little Wolf River on Mill Street in Scandinavia
Open to traffic

South Branch Roaring Creek Bridge (Northumberland County, Pennsylvania)
Built 1887 by the King Iron Bridge Co.; reconstructed 1983
Through truss bridge with steel arch reinforcement over South Branch Roaring Creek on TR 802
Closed to all traffic

South Broadway Bridge (Warren County, Ohio)
Built 1897 by the Emerson & Jones
Concrete arch bridge over Turtle Creek on South Broadway in Lebanon
Open to traffic

South Clinton Avenue Bridge (Mercer County, New Jersey)
Built 1890; rehabilitated 1983
Through truss bridge over Amtrak NE Corridor on South Clinton Avenue in Trenton
Open to traffic

South Cottonwood River Bridge (Marion County, Kansas)
Built ca. 1930
Pony truss bridge over South Cottonwood River on Goldenrod Road, 1.5 mi. west and 2.0 mi. south of Hillsboro
Open to traffic

South Deere Park Bridge (Lake County, Illinois)
Built in 1928, restored in 1994
Arch bridge over a small ravine on South Deere Park Drive in Highland Park
Open to traffic

South Dry Sac River Bridge (Greene County, Missouri)
Built 1928
Concrete bridge over South Dry Sac River on Farm Road 141 (Old MO 13)
Open to traffic

South Fabius River CR 159 Bridge (Marion County, Missouri)
Built ca. 1930; probably relocated or erected here to replace Pratt Thru Truss.
Through truss bridge over South Fabius River on CR 159
Open to traffic

South Fabius River CR 176 Bridge (Knox County, Missouri)
Built or relocated here ca. 1990
Pony truss bridge over South Fabius River on CR 176
Open to traffic

South Fork Beargrass Creek Bridge (Jefferson County, Kentucky)
Built 1926
Stone arch bridge over South Fork Beargrass Creek on Us-31e
Open to traffic

South Fork Beargrass Creek Bridge (Jefferson County, Kentucky)
Built 1956 as per NBI, but more than likely that was the year the bridge was widened for modern traffic
Stone arch bridge over South Fork Beargrass Creek on W Broadway/E Broad
Open to traffic

South Fork Bens Creek Bridge (Somerset County, Pennsylvania)
Built 1917
Concrete arch bridge over South Fork Bens Creek on PA 4016 in Jerome
Open to traffic

South Fork Big Nemaha River Bridge (Nemaha County, Kansas)
Built ca. 1930; replaced 1994
Lost through truss bridge over South Fork Big Nemaha River on a local road
Replaced by new bridge

South Fork Blue River IN 60 Bridge (Washington County, Indiana)
Built 1937
Concrete arch bridge over South Fork Blue River on IN 60 in New Pekin
Open to traffic

South Fork Blue River-Bowers Knob Rd. Bridge (Washington County, Indiana)
Built ca. 1930; replaced 1992
Lost concrete arch bridge over Blue River on Bowers Knob Road
Replaced by new bridge

South Fork Blue River-Lockenour Rd. Bridge (Washington County, Indiana)
Built 1927
Concrete arch bridge over South Fork Blue River on Lockenour Road
Open to traffic

South Fork Cumberland River KY 92 Bridge (McCreary County, Kentucky)
Built 1941
Deck truss bridge over South Fork Cumberland River on KY 92
Open to traffic

South Fork Fountain Creek Bridge (Maury County, Tennessee)
Built ca. 1930
Arch bridge over South Fork Fountain Creek on NFA A229
Open to traffic

South Fork Licking River KY 177 Bridge (Pendleton County, Kentucky)
Built 1936
Three-span through truss bridge over South Fork Licking River on KY 177 at Butler
Open to traffic

South Fork Mustang Creek Bridge (Lavaca County, Texas)
Built 1935
Pony truss bridge over South Fork Mustang Creek on CR 315
Open to traffic

South Fork New River Bridge (Broward County, Florida)
Built 1956
Bascule bridge over So. Fork New River on FL 84 in Fort Lauderdale
Open to traffic

South Fork Oats Creek Bridge (Jackson County, Arkansas)
Built ca. 1930; replaced 2005
Lost concrete arch bridge over South Fork Oats Creek on Bradford Road (CR 1)
No longer exists

South Fork of Red River Bridge (Logan County, Kentucky)
Built 1933
Concrete tee beam bridge over South Fork of Red River on Us-431
Open to traffic

South Fork Patoka River Bridge (Pike County, Indiana)
Built ca. 1920; replaced 1998
Lost through truss bridge over South Fork Patoka River on CR 300 E
Replaced by new bridge

South Fork Pine Creek Bridge (Armstrong County, Pennsylvania)
Built 1912; rehabilitated 1973
Pony truss bridge over South Fork Pine Creek on TR 529
Unknown status

South Fork Pottawatomie Creek Bridge (Anderson County, Kansas)
Built 1934
Concrete pony arch bridge over South Fork Pottawatomie Creek, 0.5 mi. south and 3.7 mi. east of Garnett
Replaced by a new bridge