There are 13,897 bridges in this category · Only showing 7,741 bridges with photos
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Owned by state

Siuslaw River Bridge (Lane County, Oregon)
Built 1936; rehabilitated 1977, Rehabilitated 2010
Bascule bridge over Siuslaw River on US 101 in Florence
Open to traffic

Six Mile Canal Bridge (Logan County, Arkansas)
Built 1966
Steel stringer bridge over Six Mile Canal on SH 309
Open to traffic

Six Mile Creek Bridge (Erie County, Pennsylvania)
Built 1959; rehabilitated 1987
Pair of deck truss bridges over Six Mile Creek on I-90
Open to traffic

Six Mile Creek Bridge (Logan County, Arkansas)
Concrete beam bridge over Six Mile Creek on Arkansas 217
Open to traffic

Six Mile Creek Relief Bridge (Logan County, Arkansas)
Bridge over Six Mile Creek Relief on Arkansas 22


Sixth Street Bridge (Indiana County, Pennsylvania)
Built 1934
Pony truss bridge over Two Lick Creek on PA 403 in Clymer
Open to traffic

Skagit River Bridge (Skagit County, Washington)
Built 1953
Swing bridge over Skagit River on WA 536 in Mount Vernon
Open to traffic

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

Skagit River Bridge (Old) (Skagit County, Washington)
Built 19XX; Replaced 1959
Lost Warren through truss bridge over Skagit River on WA 9
Replaced by a new bridge

Skamokawa Creek Bridge (Wahkiakum County, Washington)
Built 1939
Girder bridge over Skamokawa Creek on Sr 4
Open to traffic

Skeleton Creek Bridge (Logan County, Oklahoma)
Built 1927
Through truss bridge over Skeleton Creek on US 77 in Guthrie
Replaced in 2008 by a new bridge.

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

Skinners Falls Bridge (Wayne County, Pennsylvania)
Built 1902 by the American Bridge Co.
Through truss bridge over Delaware River on Skinners Falls Road (PA 1002)
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 Creek Bridge (Sumner County, Kansas)
Built 1950
Tee beam bridge over Slate Creek on US 81
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

Sligo Bridge (De Kalb County, Tennessee)
Original Camelback bridge spans replaced and elevated with Parker spans in 1948 when river was impounded. Bridge was replaced in 2015.
Five-span Parker through truss bridge over Caney Fork on US 70
Demolished and replaced.

Sligo Creek Bridge (Montgomery County, Maryland)
Built 1932
Concrete arch bridge over Sligo Creek on MD 195
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

Slocum Creek Bridge (Craven County, North Carolina)
Built 1925
Lost through girder bridge over Slocum Creek on NC-1763 (Old US 70/NC 10)
Replaced by a new 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

Slough Creek Bridge (Johnson County, Arkansas)
Built 1933; rehabilitated 1961
Concrete tee beam bridge over Slough Creek on US 64
Open to traffic

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 Avenue High Bridge (New) (Ramsey County, Minnesota)
Built 1986
Tied Deck Arch bridge over Mississippi River & Railroad on Th 149 (Smith Ave)
Open to traffic

Smith Avenue High Bridge (Old) (Ramsey County, Minnesota)
Built 1887-89, five spans damaged by tornado in 1904, rebuilt in 1905, one northern span rehabilitated in 1933-34, closed to traffic in 1984, replaced in 1985
Lost deck truss bridge over Mississippi River and Canadian Pacific Railway on MN 149 at St. Paul
Replaced by new bridge

Smith Branch MO 161 Bridge (Montgomery County, Missouri)
Built 1934
Pony truss bridge over Smith Branch on MO 161
Open to traffic

Smith Bridge (Will County, Illinois)
Built 1957 as part of US 66; rehabilitated 1979, 1997, and 2014.
Pair of cantilevered through truss bridges over Des Plaines River on I-55 southwest of Joliet in Channahon
Open to four lanes of traffic

Smith Creek Bridge (New Hanover County, North Carolina)
Built 1931; rehabilitated 1962
Swing bridge over Smith Creek on Castle Hayne Road in Wrightsboro
Open to traffic

Smith Creek Bridge (Pacific County, Washington)
Built 1959; removed 2013
Lost stringer bridge over Smith Creek on WA 105
Replaced by a new bridge

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

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

Smith Point Bridge (Humboldt County, California)
Built 1980
Beam bridge over South Fork Eel River on US HIGHWAY 101
Open to traffic

Smith River Bridge (Grafton County, New Hampshire)
Built 1940
Concrete arch bridge over Smith River on NH 3A in Bristol
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 (Henry County, Virginia)
Built 1931; Removed 2009
Removed Warren pony truss bridge over Smith River on Field Avenue (Route 701) in Collinsville
Removed; to be partially reassembled on a nearby trail.

Smith River Road Bridge (Merrimack County, New Hampshire)
Built 1941; reconstructed 2001
1941 Pony/through plate girder bridge over Smith River on Smith River Road (former NH 104)
Open to traffic

Smith River US-4 Bridge (Merrimack County, New Hampshire)
Built 1929
1929 Pony/through plate girder bridge over Smith River on US-4
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 Street Bridge (Providence County, Rhode Island)
Built 1872; Replaced ca. 1981
Lost Pratt through truss bridge over Northeast Corridor (Amtrak) on Smith Street (US 44)
Replaced by new bridge

Smith's Bridge (Will County, Illinois)
Buiilt 1911; Replaced 1932
Lost Pratt through truss bridge over Des Plaines River on Road
Replaced by a new bridge

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

Smith-McGee Bridge (Hart County, Georgia)
Built in 1922 as a toll bridge; Tolls removed in 1926; Replaced in 1983 with a new bridge but left in place for pedestrians.
Camelback through truss bridge over Savannah River on GA 181
Bridge still exists but with the eastern span removed for boat traffic

Smithfield Avenue Bridge (Providence County, Rhode Island)
Replaced ca. 1984
Lost Pratt through truss bridge over Northeast Corridor (Amtrak) on Smithfield Avenue (RI 126)
Replaced by new bridge

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 2004 and relocated to a nearby field
Pony truss bridge formerly over Smiths Creek on AR 309
Closed to all traffic

Smithton Bridge (Westmoreland County, Pennsylvania)
Built 1900 by the Pittsburgh Bridge Co.; rehabilitated 1935 and 1964; replaced 1986
Lost cantilevered through truss bridge over Youghigheny River on PA 981 in Smithton
Replaced by new bridge

Smithton Bridge (Westmoreland County, Pennsylvania)
Built in 1900, rehabilitated in 1934-5; Replaced 1986
Lost Through truss bridge over Youghiogheny Riv/Bike Tr on Sr 0981
Replaced by new bridge

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

Smithton Pike Bridge (Westmoreland County, Pennsylvania)
Built 1956
Steel stringer bridge over I-70 on Smithton Pike (TR 318)
Open to traffic

Smithtown Bridge No. 2 in Tinicum Twp, PA (Bucks County, Pennsylvania)
Built 1832; rehabilitated 1972; replaced 2002
Wooden pony truss bridge over Delaware Canal on Bridge Two Lane in Tinicum Township
Unknown status

Smithtown Bridge No. 3 -- Tinicum Township, PA (Bucks County, Pennsylvania)
Built 1832; rehabilitated 1964
Beam bridge over Delaware Canal on Local road
Open to traffic

Smithtown Bridge No. 4 in Tinicum Township, PA (Bucks County, Pennsylvania)
Built 1832; rehabilitated 1962
Beam bridge over Delaware Canal on Private Road
Open to traffic

Smithtown Bridge No. 5 -- January 31, 2010 (Bucks County, Pennsylvania)
Built 1832; rehabilitated 1984
Beam bridge over Delaware Canal on Private Road
Open to traffic

Smock Memorial Bridge (Crawford County, Pennsylvania)
Built 1953; rehabilitated 1984
Deck plate girder bridge over French Creek on US 6, US 19, US 322 (Smock Highway)
Open to traffic

Snake Creek Canal Bridge (Monroe County, Florida)
Built 1981
Bascule bridge over Snake Creek Canal on US 1 at Plantation Key in Islamorada, Village of Islands
Open to traffic

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

Snake River Bridge (Asotin County, Washington)
Built 1939
Vertical lift bridge over Snake River on US 12 in Clarkston
Open to traffic

SNC - NY 9N Overpass (S) (Saratoga County, New York)
Built 1924
Deck plate girder bridge over NY 9N on Saratoga & North Creek Railway
Open to traffic

SNC - Stony Creek Bridge (Warren County, New York)
Built 1943
Warren through truss with all verticals bridge over Stony Creek on Saratoga & North Creek Railway
Open to traffic

SNETT - Canal Street Overpass (North) (Worcester County, Massachusetts)
Built 1917; being converted to trail use 2014
Deck plate girder bridge over Canal Street on Southern New England Trunkline Trail
Under construction

SNETT - St. Paul Street Bridge (Worcester County, Massachusetts)
Built 1901
Deck plate girder bridge over St. Paul Street on Southern New England Trunkline Trail/East Coast Greenway
Under construction

SNETT - Triad Bridge (Worcester County, Massachusetts)
Abandoned Pratt deck truss girder bridge over Blackstone River, P&W Providence Main on Southern New England Trunkline Trail
Derelict/abandoned

SNI Bridge spillway- Oil Creek (Allegany County, New York)
Bridge over Oil Creek
Open to traffic

Sni-A-Bar Creek Bridge (Lafayette County, Missouri)
Built 1929; replaced 2010
Lost through truss bridge over Sni-A-Bar Creek on MO 224 (Old US 24) at Wellington
No longer exists

Sni-A-Bar Creek Route D Bridge (Lafayette County, Missouri)
Built 1934
Pony truss bridge over Sni-A-Bar Creek on Route D
Replaced by a new bridge

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

Snipe Slough Route O Bridge (Dunklin County, Missouri)
Built 1922-23; rehabilitated and widened in 1931
Pony truss bridge over Snipe Slough on Route O just southwest of Kennett
Open to traffic

Snohomish River Bridge (Northbound) (Snohomish County, Washington)
Built 1927; rehabilitated 1994
Vertical lift bridge over Snohomish River on northbound WA-529
Open to traffic

Snohomish River Bridge (Southbound) (Snohomish County, Washington)
Built 1954
Vertical lift bridge over Snohomish River on southbound WA-529
Open to traffic

Snoqualmie Falls Motel Covered Bridge (King County, Washington)
Built 1986
Pratt through truss bridge over Railroad Avenue (Washington State Route 202)


Snoqualmie Valley Trail - Reinig Bridge (King County, Washington)
Built 1916; Abandoned 1980; Converted to pedestrian use
Pratt through truss bridge over Snoqualmie River on pedestrian walkway
Open to pedestrians

Snoqualmie Valley Trail - Tokul Creek Trestle (King County, Washington)
Deck plate girder bridge over Tokul Creek on Trail
Open to pedestrians only

Snoqualmie Valley Trail - Tolt River Bridge (King County, Washington)
Deck plate girder bridge over Tolt River on Trail
Open to pedestrians only

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

Soapstone Creek Bridge (Clatsop County, Oregon)
Built 1928
Concrete arch bridge over Soapstone Creek on OR 53
Open to traffic

Soapstone Creek Culvert (Towns County, Georgia)
Built 1948
Culvert over Soapstone Creek on Sr 17, Sr 75
Open to traffic

Social Island (Franklin County, Pennsylvania)
Built ca. 1850
Stone arch bridge over Conococheague Creek on PA 3012
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 Fork Bridge (Linn County, Oregon)
Built 1936
Concrete deck girder bridge over Soda Fork on U.S. 20
Open to traffic

Soden Grove Bridge (Lyon County, Kansas)
Built 1923; made obsolete by new bridge in 1987
Marsh arch bridge over Cottonwood River on old K-99 at Emporia
Open to pedestrians only

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

Somerfield Dam Bridge (Fayette County, Pennsylvania)
Built 1946; replaced 2005
Lost deck truss bridge over Youghiogheny River on US 40
Replaced by a new bridge

Somerset Street over Lincoln Highway Bridge (Somerset County, Pennsylvania)
Built 1938
Concrete rigid frame bridge over Lincoln Highway (US 30) on Somerset Street (SR 4019)
Open to traffic

Songo River Bridge (Cumberland County, Maine)
Built 1926
Swing bridge over Songo River in Naples
Open to traffic

Soo Line "S" Bridge (Eau Claire County, Wisconsin)
Warren deck truss bridge over Chippewa River on the Chippewa River State Trail (formerly Soo Line Railroad)
Open to pedestrians

Soo Line - Blanchard Crossing (Morrison County, Minnesota)
Built in 1909 as part of the line from Brooten to Duluth; railline discontinued in 1993; rehabilitated for recreational use in 2006; reopened as a bike trail in 2007
Warren deck truss bridge over Mississippi River on Soo Line Bike Trail at Blanchard Dam
Open to pedestrians

Soo Line ATV Trail - Genola Bridge (Morrison County, Minnesota)
Deck plate girder bridge over Platte River on Soo Line ATV Trail
Open to pedestrians

Soo Line ATV Trail - Mud/Skunk Lake Trestle (Morrison County, Minnesota)
Timber stringer bridge over Strait between Mud and Skunk Lakes on Soo Line ATV Trail
Open to pedestrians

Soo Line ATV Trail - Platte River Bridge (Morrison County, Minnesota)
Timber stringer and girder bridge over Platte River on Soo Line ATV Trail
Open to pedestrians only

Soo Line ATV Trail - US10 Overpass (Morrison County, Minnesota)
Built in 1909; extended in 1973 when US Hwy. 10 was widened to 4 lanes; converted into bike use in 2007
Deck plate girder bridge over US Hwy. 10, BNSF Railroad, and Twp. 316 (180th Avenue) on Soo Line Bike Trail
Open to pedestrians

Soo Line Trail - Kettle River Bridge (Pine County, Minnesota)
Built 1909
Warren deck truss bridge over Kettle River on Soo Line Trail
Open to pedestrians only

Soo Line Trail - Mississippi River Bridge (Aitkin County, Minnesota)
Riveted Warren through truss bridge over Mississippi River on Soo Line Trail
Open to pedestrians

Soo Line Trail - Moose Horn River Bridge (Carlton County, Minnesota)
Deck plate girder bridge over Moose Horn River on Soo Line State Trail
Open to pedestrians only

Soquel Creek Bridge (Santa Cruz County, California)
Built 1947; rehabilitated 1995
Concrete arch bridge over Soquel Creek, Wharf Road on CA 1 in Capitola
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