There are 5,855 bridges in this category · Only showing 3,942 bridges with photos
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Pratt truss

The Pratt truss is named after Thomas and Caleb Pratt, Boston railroad engineers who patented the design in 1844. The Pratt and its variations are the most common design of metal truss bridges. On a basic Pratt truss, the diagonals slope toward the center of the bridge, do not cross any verticals, and are approximately parallel. The top chord is straight and parallels the lower chord. The panels can have sub-divisions - or verticals and diagonals that don't reach from the top to bottom chord, though this can be considered a variation of the basic type. There are many variations, or sub-types of the Pratt truss, some of which have their own name including Parker, camelback, Pennsylvania, Baltimore, and others. It is used in bridges as a through truss, pony truss, and deck truss.

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 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

South Fork Gualala River Bridge (Sonoma County, California)
Current bridge installed 1984, likely multiple previous bridges at this location
Lost Pratt deck truss bridge over South Fork Gualala River on Stewart's Point Skagg Springs Road
Replaced by new bridge

South Fork Main City Road Bridge (Cass County, Missouri)
Built ca. 1905
Bedstead Pony truss bridge over South Fork on Main City Road
Closed to all 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 Patoka River IN 61 Bridge (Pike County, Indiana)
Built 1932; rehabilitated 1984; replaced 2002
Lost through truss bridge over South Fork Patoka River on IN 61
Replaced by new bridge

South Fork TR 242 Bridge (Monroe County, Ohio)
Built by the Bellefontaine Bridge & Iron Co.
Pony truss bridge over South Fork on TR 242
Replaced by a new bridge

South Fork US 65 Bridge (Van Buren County, Arkansas)
Built 1931 by M.K. Orr of Little Rock; rehabilitated 1962; Replaced 2011
Three-span cantilevered deck truss bridge over South Fork Little Red River on US 65 in Clinton
Replaced by new bridge

South Fork Wildcat Creek Bridge (Tippecanoe County, Indiana)
Built 1916; rehabilitated 1978; replaced 1993
Lost through truss bridge over South Fork Wildcat Creek on IN 38
Replaced by new bridge

South Fork Wolf River Bridge (Brown County, Kansas)
Built ca. 1940
Pony truss bridge over South Fork Wolf River, 1.3 mi. east and 4.5 mi. north of Everest
Open to traffic

South Greenfield Overpass (Dade County, Missouri)
Built 1924; replaced 1996
Lost Pratt through truss bridge over BNSF Railroad on Old MO 39
Replaced by new bridge

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

South Hodgen Rail Bridge (Le Flore County, Oklahoma)
Through truss bridge over Poteau River on Kansas City Southern Railway in Hodgen
Open to traffic

South Hogan Creek Bridge (Dearborn County, Indiana)
Built 1926; replaced 1991
Lost through truss bridge over South Hogan Creek on Chesterville Road
Replaced by new bridge

South Island Bridge (Will County, Illinois)
Pony truss bridge over East Branch Kankakee River on West Street, 0.25 mi. north of Kahler Rd
Now resides as a display at DDD Construction in Coal City.

South Moreau Creek Route D Bridge (Cole County, Missouri)
Built 1922 in Lafayette County and relocated and erected here in 1956 with new approach spans
Through truss bridge over South Moreau Creek on Route D
Open to one-lane traffic

South River Bridge (Warren County, Iowa)
Built 1928; made obsolete by a new bridge in 1951; later closed to traffic, Collapsed 2012
Through truss bridge over South River on Elk Horn Street
Collapsed

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 Skunk River Bridge (Jasper County, Iowa)
Built 1899
Through truss bridge over South Skunk River on 126th Avenue
Closed to all traffic with west approach appearing to have been dug up to keep people off the bridge. Awaiting demolition scheduled for next year

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

South Timber Creek Bridge (Marshall County, Iowa)
Built 1954
Pratt Through truss bridge over South Timber Creek on 260th Street
Open to traffic

South Wallingford Road Bridge (Will County, Illinois)
Built ca.1890 by the Wrought Iron Bridge Company
Abandoned pony truss bridge over Forked Creek on abandoned alignment of Wallingford Rd
Abandoned

South Windrow Road Bridge (Rutherford County, Tennessee)
Abandoned Pratt through truss bridge over West Fork Stones River on South Windrow Road
Abandoned

South Wyacondah Ditch Bridge (Davis County, Iowa)
Built 1905
Through truss bridge over South Wyacondah Ditch on Robin Blvd
Open to traffic

South Wyacondah Ditch Bridge (Davis County, Iowa)
Built ca. 1950
Through truss bridge over South Wyacondah Ditch on Timber Avenue
Intact but closed to all traffic

Southern Pacific Railroad Bridge (El Paso County, Texas)
Built 1917
Deck truss bridge over the Rio Grande on Southern Pacific Railroad
Open to traffic

Southern Pacific Railroad Bridge (Sacramento County, California)
Built 1884 by Phoenix Bridge Company, originally located near Saugus, later relocated to Tehachapi Creek and later to Danville
Pratt through truss bridge on Display train
Intact but closed to all traffic

Southern Pacific Railroad Bridge 1917 (El Paso County, Texas)
Built 1917
Deck truss bridge over Rio Grande on Southern Pacific Railroad
Open to rail traffic

Southern Pennsylvania Iron & Railroad Company Bridge (Franklin County, Pennsylvania)
Most likley this bridge (first built around 1870-1873) was built in 1896 as CVRR replaced all iron bridges with second-hand steel.
Abandoned pratt through truss bridge over Conococheague Creek on former Southern Pennsylvania Iron & Railroad Company
Abandoned

Southern Pennsylvania Iron & Railroad Company Williamson Bridge (Franklin County, Pennsylvania)
This iron truss replaced a trestle.
Abandoned Through truss bridge over Back Creek on former Southern Pennsylvania Iron & Railroad Company
Abandoned

Southside Drive Bridge (Rutherford County, North Carolina)
Pratt through truss bridge over Broad River
Open on a private driveway

SP Dumbarton Bridge (Alameda County, California)
(Main design: Baltimore through truss)
Built 1910, last used 1982.
Abandoned baltimore through truss bridge over San Francisco Bay on Caltrain
Abandoned

SP Gudalupe River Bridge (Kendall County, Texas)
(Main design: Parker through truss)
Built 1900-1906
Abandoned Parker Through Truss bridge over Gudalupe River on abandoned Railroad
Abandoned

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

Sparks Road Bridge (Baltimore County, Maryland)
Built 1888; rehabilitated 1990
Pratt through truss (with added arch) over Gunpowder Falls on Sparks Road
Open to traffic

Speel Creek Bridge (Martin County, Indiana)
Built 1898; replaced 1997
Lost pony truss bridge over Speel Creek on CR 50 E
Replaced by new bridge

Spencer Bridge (Owen County, Indiana)
Built 1897; replaced 1995
Lost through truss bridge over White River on CR 25 East
Replaced by new bridge

Spencer's Crossing Bridge (Anderson County, Kansas)
(Main design: Pratt through truss)
Built 1885 by the Wrought Iron Bridge Co. Closed to traffic in 2001 and bypassed in 2005
Through truss bridge over Pottawatomie Creek, 0.6 mi. west and 0.1 mi. north of Greeley
Preserved

Spengler Bridge (Columbia County, New York)
Built 1880
Pratt through truss bridge over Kinderhook Creek on Spangler Road
Closed to all traffic

Sperry Bridge (Nez Perce County, Idaho)
Built 1908
Pin-connected Pratt through truss bridge over Potlatch River on Mill Street in Kendrick
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

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

Sprague Bridge (Juneau County, Wisconsin)
Built 1913; Replaced 1990
Lost Pratt pony truss bridge over Yellow River on 9th St East in Towns of Armenia and Necedah
Replaced by new bridge

Spring Creek 1700N Bridge (Iroquois County, Illinois)
Built 1898
Lost through truss bridge over Spring Creek on 1700N Road
Replaced

Spring Creek 1900N Bridge (Iroquois County, Illinois)
Built 1916
Lost through truss bridge over Spring Creek on 1900N Road
Lost

Spring Creek Branch 1250N Bridge (Iroquois County, Illinois)
Built 1904
Two-span bedstead pony truss bridge over a branch of Spring Creek on 1250N Road
Closed to traffic

Spring Creek Bridge (Elk County, Pennsylvania)
Built 1898; rehabilitated 1997
Through truss bridge over Spring Creek on TR 301
Demolished

Spring Creek Bridge (Clay County, Kansas)
Built 1903
Pratt through truss bridge over Spring Creek, 2.0 mi. north and 6.0 mi. west of Green
Open to traffic

Spring Creek Bridge (Blaine County, Oklahoma)
Built ca. 1920
Half-hip Pratt Pony truss bridge over Spring creek on N2570
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 Hollow Bridge (Morrow County, Oregon)
Built 1909
Pin-connected Pratt through truss bridge over Rhea Creek on Spring Hollow Road
Open to pedestrians only

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

Spring Valley Road Bridge (Miami County, Kansas)
Built ca. 1920
Pony truss bridge over North Wea Creek, 2.2 mi. north and 2.0 mi. west of Louisburg
Open to traffic

Spunky Creek Bridge (Rogers County, Oklahoma)
Built 1913
Bedstead Pony truss bridge over Spunky Creek on Rice St. (E0570) in Catoosa
Closed to traffic.

Squaw Creek Bridge (Brown County, Kansas)
Built ca. 1950
Pony truss bridge over Squaw Creek, 3.5 mi. east and 4.3 mi. north of Everest
Open to traffic

St Francis Bay Ditch Bridge (Cross County, Arkansas)
Moved and reerected here in 1944-45 - previously was Bridge J21 on US Route 67 at Greenville Missouri
Pratt through truss bridge over St. Francis Bay Ditch on AR 42


ST Sebasticook River Bridge (Kennebec County, Maine)
Pratt through truss bridge over Sebasticook River on Springfield Terminal Rail
Open to traffic

St. Claude Avenue Bridge (Orleans Parish, Louisiana)
Built 1919 by the Bethlehem Steel Bridge Corporation as a combination rail/highway bridge; later converted to an all highway bridge
Bascule through truss bridge over the Inner Harbor Navigation Canal (Industrial Canal) on St. Claude Avenue (LA Hwy 46)
Open to traffic

St. Francis River Bridge (Sherburne County, Minnesota)
Built 1915
Lost Pratt through truss bridge over St. Francis River on CR 64
Replaced by gross concrete eyesore

St. Francis River Bridge (Sherburne County, Minnesota)
Built ca. 1900
Pratt through truss bridge over St. Francis River on a local road at wildlife refuge just off CSAH 5
Intact but closed to all traffic

St. Francis River Route E Bridge (Madison County, Missouri)
Built 1936
Two-span through truss bridge over St. Francis River on Route E
Open to two-lane traffic; however, replacement bridge currently under construction to the south.

St. Joe Bridge (De Kalb County, Indiana)
Built in 1895 by the Massillon Bridge Company.
Lost Pratt through truss bridge over St. Joseph River on Old alignment of CR 63
Removed

St. Johns Bridge (Bremer County, Iowa)
(Main design: Pratt through truss)
Lost Pratt through truss bridge over Cedar River on Road
Replaced by a new bridge

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

St. Joseph River Bridge (De Kalb County, Indiana)
Built in 1891 by the King Bridge Company; replaced in 1989
Lost Pratt through truss bridge over St. Joseph River on CR 79
Replaced by new bridge

St. Joseph River Bridge (Calhoun County, Michigan)
Built 1906
Through truss bridge over St. Joseph River on 22 1/2 Mile Road
Posted as closed on visit on 5/7/2011

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. 1910; 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 on different alignment

St. Marks Road Bridge (Frederick County, Maryland)
Pony truss bridge over Broad Run on St. Marks Road
Open to traffic

St. Mary River Aqueduct Bridge (Glacier County, Montana)
Built 1915 by the Minneapolis Bridge Co.; bypassed 2008
Two-span through truss bridge over St. Mary River on CR 224, also carrying a pair of water pipelines
Closed to traffic, but still carries pipelines

St. Peters Bridge (Franklin County, Indiana)
Built 1916; replaced 1991
Lost three-span through truss bridge over Whitewater River on St. Peter's Road
Replaced by new bridge

Stafford's Ford Bridge (Lawrence County, Indiana)
Built 1897 by the Lafayette Bridge Co.
Through truss bridge over Little Salt Creek on CR 595 East
closed to all traffic

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

Stancer Road Bridge (Branch County, Michigan)
Built 1888 by the Massillon Bridge Co.
Through truss bridge over North Coldwater River on Stancer Road
Open to traffic

Stanislaus River Pedestrian Bridge Ripon (Stanislaus County, California)
Pratt through truss bridge over Stanislaus River on Pedestrian Path
Open to pedestrians

Stanislaus River Railroad Bridge (Stanislaus County, California)
Built 1905, Truss span replaced with deck girder ca. 1995
Lost Pratt through truss bridge over Stanislaus River on Santa Fe Railroad (B.N.S.F.)


Stanton Station Road Bridge (Hunterdon County, New Jersey)
Built 1880; rehabilitated 1990
Through truss bridge over South Branch Raritan River on Stanton Station Road
Open to traffic

Staples Ford Bridge (Jennings County, Indiana)
Built in 1897 by the Lafayette bridge Company; replaced 1995
Lost through truss bridge over Vernon Fork Muscatatuck River on CR 910 W
Replaced by new bridge

State Bridge (Rio Grande County, Colorado)
Built 1907-08 by the Denver Bridge Co.; replaced 1986
Lost through truss bridge over the Rio Grande on CR 17
Replaced by new bridge

State Line Road Bridge (Columbiana County, Ohio)
Built 1914 by the Central Construction Co.; rehabilitated 1970
Pony truss bridge over North Fork Little Beaver Creek on State Line Road (TR 945)
Open to traffic

State Route 1032 Bridge (Harrison County, Kentucky)
Built in 1906 by the Champion Bridge Company; replaced 1999
Lost pratt through truss bridge over South Fork of Licking River on Kentucky State Route 1032 in Berry
Bridge has been replaced.

Station Hollow Road Bridge (Dearborn County, Indiana)
Built ca.1880; replaced 1999(?)
Lost Pratt through truss bridge over South Hogan Creek on Station Hollow Road
Removed

Station Road Bridge (Frederick County, Maryland)
Built ca. 1920; rehabilitated 1996
Pony truss bridge over Catoctin Creek on Station Road in Middletown
Open to traffic

Stauffer Road Bridge (Frederick County, Maryland)
Built 1910; rehabilitated 1970; replaced 1998
Lost Pratt pony truss bridge over Israel Creek on Stauffer Road
Replaced by new bridge

Staunton River Bridge (Campbell County, Virginia)
(Main design: Polygonal Warren through truss)
Built 1929
Through truss bridge over Staunton River on Business US 29 in Altavista
Open to traffic

Steel Bridge (Multnomah County, Oregon)
Built 1912
Vertical-lift through truss bridge over Willamette River on OR 99W in Portland
Open to highway and light rail traffic on upper deck; bicycle/pedestrian and rail traffic on lower deck

Steens Bridge (Lowndes County, Mississippi)
Built 1930 by the Decatur Iron & Steel Co.; Bypassed by a new bridge in 1985
Abandoned pratt through truss bridge over Yellow Creek on former Caledonia Steens Road
Abandoned

Steffey Bridge (Vermilion County, Illinois)
Built 1901, replaced in 2002
Lost Through truss bridge over Salt Fork Vermilion River on TR 10
Replaced by new bridge

Stepps Ford Bridge (Ottawa County, Oklahoma)
Built ca. 1910
Through truss bridge over Neosho River on 5834C
Closed to traffic, with rubble piles at each end.

Sterling Avenue Bridge (Fountain County, Indiana)
Uncertain
Lost Pratt through truss bridge over Coal Creek on Sterling Avenue
Lost

Stevens Road Bridge (Frederick County, Maryland)
Built ca. 1890; rehabilitated 1990
Through truss bridge over Hunting Creek on Stevens Road
Open to traffic

Stewmans Creek Bridge (Decatur County, Tennessee)
Built ca. 1950; rehabilitated 1993
Through truss bridge over Stewmans Creek on TN 69
Open to traffic

Still Valley Road Bridge (Warren County, New Jersey)
Built 1900; rehabilitated 1982
Pony truss bridge over Pohatcong Creek on Still Valley Road
Open to traffic

Stillwater Creek Bridge (Payne County, Oklahoma)
Built 1916
Through truss bridge formerly over Stillwater Creek on 56th Street now on Private Property
Moved to private property across Unnamed Creek.

Stillwater Creek Bridge (Payne County, Oklahoma)
Built ca. 1950, probably "moved" here in 1950, as this has the characteristics of a pre-1920 bridge, and Oklahoma did not build bridges like this in the 1940's or 1950's.
Pony truss bridge over Stillwater Creek on N3290 in Stillwater
Open to traffic

Stillwater Creek Bridge (Payne County, Oklahoma)
Built 1935
Pony truss bridge over Stillwater Creek on E0610
Open to traffic

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