There are 9,308 bridges in this category · Only showing 7,320 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.
Salt Fork Brazos River Bridge (Stonewall County, Texas)
Through truss bridge over Salt Fork Brazos River on FM 1263Replaced by new bridge and bypassed
Salt Fork Bridge (Vermilion County, Illinois)
Built 1899; replaced 1994Lost Through truss bridge over Salt Fork Vermilion River on TR 6AReplaced by new bridge
Salt Fork CR 214 Bridge (Saline County, Missouri)
Built 1912 by the Kansas City Bridge Co.Pony truss bridge over Salt Fork on CR 214Open to traffic
Salt Fork OK 156 Bridge (Kay County, Oklahoma)
Built 1924 carried State Route 4 1925-1929. Carried US 77 until the 1960's.Four-span through truss bridge over Salt Fork of Arkansas River on OK 156Replaced by a new bridge
Salt River CR 344 Bridge (Knox County, Missouri)
Built ca. 1910; replaced 2000Lost pony truss bridge over Salt River on CR 344Replaced by new bridge
Salt River CR 351 Bridge (Knox County, Missouri)
Built ca. 1910Pony truss bridge over Salt River on CR 351Open to traffic
Salt River-KY 61 Bridge (Bullitt County, Kentucky)
Lost Pratt through truss bridge over Salt River on old alignment of KY 61Replaced by a new bridge
Sam Bass Road Bridge at Clear Creek (Denton County, Texas)
Built 1908 for $1500 - Replaced 2007. Truss frame left in nearby fieldThrough truss bridge over Clear Creek on Sam Bass RoadTruss frame abandoned in field near new bridge
Samish River Bridge (Skagit County, Washington)
Built 1934Pratt through truss bridge over Samish River on Old US 99 between Burlington and AlgerOpen to traffic
Sampson Creek Old US 136 Bridge (Harrison County, Missouri)
Built 1922; made obsolete in 1939 by new bridge on US 136Pony truss bridge over Sampson Creek on Lincoln Street (Old US 136) in New HamptonIntact but closed to all traffic
San Antonio River Bridge (Karnes County, Texas)
Built ca. 1940Through truss bridge over San Antonio River on the former CR 123Closed to all traffic
San Felipe Creek Bridge (Santa Clara County, California)
Built 1906; rehabilitated 1977Pony truss bridge over San Felipe Creek on San Felipe RoadPrivate Open to private traffic
San Gabriel River Bridge (Williamson County, Texas)
(Main design: Camelback through truss)Built 1922Through truss bridge over San Gabriel River on CR 366Bypassed and abandoned in 1982.
San Gabriel River Bridge (Milam County, Texas)
(Main design: Pratt through truss)Built 1911Through truss bridge over San Gabriel River on CR 428Open to traffic
San Saba River Bridge (San Saba County, Texas)
Built ca. 1910; replaced and relocated to San Saba for use in a parkPratt through truss bridge over Mill Creek in Mill Pond Park in San SabaReplaced by new bridge and relocated
Sand Creek Bridge (Creek County, Oklahoma)
Built 1913Pratt pony truss bridge over Sand Creek on E0815 Rd.Open to traffic
Sand Creek Bridge (Washington County, Oklahoma)
Built 1913Through truss bridge over Sand Creek on Johnstone Ave. in BartlesvilleClosed to traffic
Sand Creek Bridge (Lincoln County, Oklahoma)
Built 1994Pony truss bridge over Sand Creek on N3450Open to traffic
Sand Creek Bridge (Osage County, Oklahoma)
Built ca. 1930Through truss bridge over Sand Creek on Okesa Rd.Bypassed and abandoned
Sand Creek Bridge (Bryan County, Oklahoma)
Built 1921Pony truss bridge over Sand Creek on River RoadOpen to traffic
Sand Creek-Old CR 150W Bridge (Jennings County, Indiana)
Built in 1897 by Lafayette Bridge Co. and probably abandoned when new SR3 bridge was built in 1935.Abandoned pratt through truss bridge over Sand Creek most likely on former route of State Road 3Abandoned
Sand Island Park Bridge (Lehigh County, Pennsylvania)
built in 1867; relocated from Township Line Road in 1991Pratt pony truss bridge over Monocacy Creek on TrailOpen to pedestrians only
Sand Lick Creek Bridge #2 (Fleming County, Kentucky)
(Main design: Pratt pony truss)Built 1893Lost Pony truss bridge over Sand Lick Creek on Ky-01013-0Replaced by new bridge
Sand Road Bridge (Knox County, Indiana)
Built ca. 1920Through truss bridge over Black Creek on Sand Road (CR 1600 East)Open to traffic
Sandbar Slough Crossing (Old) (Dickinson County, Iowa)
Built 1915Pony truss bridge over Sandbar Slough on east end of Big Spirit Lake at 270th PlaceOpen to traffic
Sanders Bridge (Apache County, Arizona)
1923Pratt pony truss bridge over Puerco River on on an abandoned section of Claymine Road (former US 66) in SandersMounds of sand keep bridge closed to automobiles but open to pedestrians
Sanders Brothers Veterans Bridge (Lincoln County, West Virginia)
Built 1925 by the Oregonia Bridge Co.Through truss bridge over Guyandotte River on CR 48Replaced by a new bridge
Sandstone Drive Bridge (Caldwell County, Missouri)
Built ca. 1910Pony truss bridge over Otter Creek on Sandstone DriveDerelict/abandoned
Sandusky River CR 9 Bridge (Wyandot County, Ohio)
Built 1913 by the Home Engineering Co., Canton, Ohio,Lost Through truss bridge over Sandusky River on CR 9Replaced with a Warren Polygonal truss
Sandusky River TR 135 Bridge (Wyandot County, Ohio)
Built 1997Lost Through truss bridge over Sandusky River on TR 135Replaced with a Warren Polygonal truss
Sandy Creek Bridge (Jefferson County, New York)
Built 1899; rehabilitated 1973Pratt through truss bridge over Sandy Creek on School Street in RodmanIntact but closed to all traffic
Sandy Creek Bridge (Venango County, Pennsylvania)
Built 1926; rehabilitated 1966; replaced 2007Lost deck truss bridge over Sandy Creek on Old Route 8 (SR 3013)Replaced by a new bridge
Sandy Creek Bridge (Atoka County, Oklahoma)
Built 1924Bedstead pony truss bridge over Sandy Creek on E1910Replaced by a new bridge
Sandy Creek MO 79 Bridge (Lincoln County, Missouri)
Built 1938; replaced 2012Lost through truss bridge over Sandy Creek on MO 79 near FoleyReplaced by a new bridge
Sandy Hook Bridge (Fairfield County, Connecticut)
Built 1890Pratt through truss bridge over Pootatuck River on Dayton StreetOpen to pedestrians only
Sangamon River Bridge (Piatt County, Illinois)
Two-span through truss bridge over Sangamon River on TR 51Intact but closed to all traffic
Sangamon River Bridge (Sangamon County, Illinois)
Built ca. 1950Two-span through truss bridge over Sangamon River on Oak Crest Rd, 2.0 mi. east of Clear Lakeopen to traffic
Sank Bridge (Bollinger County, Missouri)
Built 1908 near Zalma by Stupp Brothers Bridge & Iron Co.; relocated here in 1927Lost bedstead pony truss bridge over Clubb Creek on CR 530, northeast of ZalmaReplaced by a new bridge
Sans Bois Creek Bridge (Haskell County, Oklahoma)
Built ca. 1910Through truss bridge over Sans Bois Creek on 3138CReplaced by a new bridge
Sans Bois Creek Bridge (Haskell County, Oklahoma)
Built 1921Pony truss bridge over Sans Bois Creek on N4350Replaced by a new bridge
Santa Fe Street Bridge (Jackson County, Missouri)
Built Ca. 1888, Relocated Here 1912; rehabilitated 1998Through truss bridge over the BNSF Railroad on Santa Fe Street in SibleyOpen to traffic
Santa Fe Trestle Trail - Trinity River Bridge (Dallas County, Texas)
Original bridge built 1872, steel truss erected 1903; abandoned 1980s by ATSF Railway and later turned into trail bridge; slated for removal 2020Pratt through truss bridge with concrete and wooden trestle approaches over Trinity River on Santa Fe Trestle TrailOpen to pedestrians only
Santa Fe Truss Bridge (Monroe County, Missouri)
Built 1888 as a triple-span bridge near Florida, MO by the St. Louis Bridge & Iron Co.; relocated here in 1932; replaced 1992Lost wrought-iron through truss bridge over South Fork Salt River on CR 645 just south of Santa FeReplaced by a modern bridge
Santa Ynez River Bridge (Santa Barbara County, California)
Built 1918Lost Pratt through truss bridge over Santa Ynez River on US 101Replaced by a new bridge
Sappa Creek Bridge (Harlan County, Nebraska)
Built 1916; rehabilitated 1940Pony truss bridge over Sappa Creek on CR-D, 2 mi. east of StamfordOpen to traffic
Saranac River Bridge (Franklin County, New York)
Built 1900Pratt through truss bridge over N Br Saranac River on Kushaqua Mud Pond RaodClosed to all traffic
Sardine Branch Bridge (Richardson County, Nebraska)
Built ca. 1935Pony truss bridge over Sardine Branch on CR 714Open to traffic
Sargent Bridge (Custer County, Nebraska)
Built 1908; Destroyed by flooding 2019Bridge over Middle Loup River on an old alignment of US 183Destroyed by flooding
Satank Bridge (Garfield County, Colorado)
Built 1900 by the Pueblo Bridge Co, rebahilitated 2015Wooden through truss over Roaring Fork River on CR 106 near CarbondaleOpen to pedestrians
SAU&G - Nueces River "A" Bridge (Zavala County, Texas)
(Main design: Waddell "A" through truss)Built 1909; Lost to flooding 1935; Replaced afterwardsLost Waddell "A" through truss bridge over Nueces River on San Antonio, Uvalde & Gulf RailroadDestroyed by flooding
Saugatuck River Bridge (Fairfield County, Connecticut)
Built 1884 by the Union Bridge Co.; rehabilitated 1993Swing through truss bridge over Saugatuck River on CT 136 in WestportOpen to traffic
Sauk River Bridge (Stearns County, Minnesota)
Lost Through truss bridge over Sauk River on MN 15Replaced by a new bridge in 1950
Saulsbury Bridge (Muscatine County, Iowa)
Built 1881; Closed to vehicular traffic 1967; Converted to pedestrian use 1976; Partially lost in accidental fire March 26, 1977Pinned Pratt through truss over Cedar River on Saulsbury Bridge Recreation Area Fishing PierOpen to pedestrians
Sawdon Ridge Road Bridge (Dearborn County, Indiana)
Built in 1891 by the Indiana Bridge Company; replaced in 1987Lost Pratt pony truss bridge over Brushy Fork on Sawdon Ridge RoadReplaced by a new bridge
Sawmill Road Bridge (Fountain County, Indiana)
Built ca. 1900Lost Pratt pony truss bridge over Buffalo Branch on Sawmill Road (CR 1160S)Replaced by a new bridge
Sawyer Avenue Bridge (Taylor County, Wisconsin)
Built 1906; Replaced 1997; Status unknownPratt pony truss bridge over Black River on Sawyer Avenue in Town of HammelReplaced by a new bridge
Sayre Walkbridge (Bradford County, Pennsylvania)
Built 1896; Removed 1987.Lost Pratt through truss bridge over Lehigh Valley Railroad on Pedestrian PathwayRemoved
SBD - Pea River Bridge (Coffee County, Alabama)
Service discontinued in 1984Abandoned pratt through truss bridge over Pea River on Seaboard System RailroadAbandoned
Scarlet Avenue Bridge (Davis County, Iowa)
Built ca. 1910; replaced 2014Lost bedstead pony truss bridge over North Wyacondah Creek on Scarlet AvenueReplaced by a new bridge
Scattering Point Creek Bridge (Livingston County, Illinois)
Built 1901Pony truss bridge over Scattering Point Creek on E 2350N Rd 5, 2.5 mi. southwest of CornellIntact but closed to all traffic
Scenic Bridge (Mineral County, Montana)
Built 1928; rehabilitated 1965Deck truss bridge over Clark Fork on Old US 10 (CR 012)Open to pedestrians only
Schaeffers Ford Bridge (Berks County, Pennsylvania)
Built 1889; rehabilitated 1962; replaced 1999; miraculously reappeared in 2020Tulpehocken Creek on TR 507Open to traffic
Schilling Bridge (Ward County, North Dakota)
Built 1940Through truss bridge over Mouse River on 181st Street SE, 2 mi. east of Sawyer in Sawyer TownshipDestroyed by collision
Schilpp Road Bridge (Lee County, Illinois)
Built 1915; relocated August 2006Relocated pony truss bridge formerly over Five Mile Branch on Schilpp RoadAwaiting reconstruction at a site near Franklin Grove
Schlink Bridge (Allen County, Indiana)
(Main design: Warren through truss)Built 1908 using one new span and one older reused ca. 1895 span. Replaced 1985Lost Warren through truss bridge over Maumee River on Bruick RoadReplaced by new bridge
Schmidgall Road Bridge (Tazewell County, Illinois)
(Main design: Pratt through truss)Through truss bridge over Mackinaw River on Schmidgall Rd E of MackinawBridge looks intact and used, but road closed to public traffic.
Schneider's Ford Bridge (Cole County, Missouri)
(Main design: Camelback through truss)Built 1897-98 by the Youngstown Bridge Co.; rehabilitated 1979; replaced 1988Lost through truss over Moreau River on Bald Hill Road, southeast of Jefferson CityReplaced by a concrete bridge
Schoellkopf Road Bridge (Wyoming County, New York)
Bridge was bought used in 1933 from Erie County; rehabilitated 1973Through truss bridge over Cayuga Creek on Schoellkopf RoadOpen to traffic
School Street Bridge (Hunterdon County, New Jersey)
Built 1870 by the Cowin Iron Works; rehabilitated 1993Pony truss bridge over Spruce Run River on School Street in Glen GardnerOpen to traffic
School Street Bridge (Warren County, Iowa)
Built ca. 1940; rehabilitated 1960Through truss bridge over Middle River on School StreetOpen to traffic
Schoolfield Road Bridge (Clay County, Missouri)
Lost pony truss bridge over Williams Creek on Schoolfield RoadReplaced by a new bridge
Schoolhouse Trail Bridge (Madison County, Illinois)
Pratt pony truss bridge over IL 162 on MCT Schoolhouse Trail in TroyOpen to pedestrians and bicyclists
Schuckman Road Bridge (Knox County, Indiana)
Built ca. 1905; replaced 1997Lost through truss bridge over Upper River Deshee on Schuckman RoadReplaced by new bridge
Schuylkill River Bridge (Montgomery County, Pennsylvania)
Lost Pratt through truss bridge over Schuylkill River on East Bridge StreetReplaced by a new bridge
Schwaben Creek Bridge (Northumberland County, Pennsylvania)
Built 1897; rehabilitated 1973Pratt Pony Truss bridge over Schwaben Creek on T-454 (Line Road)Open to traffic
Schwenk Mill Road Bridge (Bucks County, Pennsylvania)
Built 1883 by the Wrought Iron Bridge Co.Pony truss bridge over East Branch Perkiomen Creek on Schwenk Mill Road in Hilltown TownshipOpen to traffic
Scioto-Darby Road Bridge (Pickaway County, Ohio)
Built 1910 by the The Oregonia Bridge Co., Lebanon, Oh.; rehabilitated 1986 and replaced in 2016Lost through truss bridge over Big Darby Creek on Scioto-Darby Road (CR 22)Removed and replaced
Scipio Road Bridge (Allen County, Indiana)
Lost Pratt through truss bridge over Maumee River on Scipio RoadRemoved but not replaced
SCL - Altamaha River Bridge (Glynn County, Georgia)
Abandoned pratt through truss bridge over Altamaha River on Abandoned Seaboard Coast Line RailroadDerelict/abandoned
SCL - Ashley River Bridge (Charleston County, South Carolina)
Built 1917Lost Pratt through truss bridge over Ashley River on Charleston & Savannah RRNo longer exists
Scotia Bridge (Schenectady County, New York)
Built 1874; Destroyed 1922Lost Pratt pony truss bridge over Mohawk River on Washington AvenuDestroyed by collision with ice
Scott Bridge (Washington County, Pennsylvania)
Built 1895; rehabilitated ca. 1955Pony truss bridge over Millers Run on Galati Road (TR 608) in CecilDemolished for no reason.
Scott Ditch Bridge (Gibson County, Indiana)
Built 1902; rehabilitated 1966; removed 1995Lost pony truss bridge over Scott Ditch on Huddleston Road(1300W)Removed but not replaced
Scott Fitzhugh Bridge Pavilion (Henry County, Tennessee)
Built 1930 as part of the original Scott Fitzhugh Bridge over Kentucky Lake at Paris Landing. Current truss section saved and relocated in 1993 when original bridge was replaced.Pratt through truss bridge in a picnic area at the Paris Landing State Park MarinaOpen to pedestrians only
Scott Highway Bridge (Lenawee County, Michigan)
Built 1897; Closed 1989; Replaced 1998Lost Pratt through truss bridge over Black Creek on Scott Hwy near BlissfieldReplaced by new bridge
Scotts Crossroads Bridge (Mecklenburg County, Virginia)
Built 1910Pratt pony truss bridge over Meherrin River on Scotts CrossroadsOpen to traffic
Scrapped Pony Truss (Clayton County, Iowa)
Abandoned pony truss bridge over Scrap Yard over gravelDerelict/abandoned
Scrubgrass Creek Bridge (Venango County, Pennsylvania)
Built 1887 by the Smith Bridge Co.; rehabilitated 1940; closed to traffic 2003; replaced 2009Through truss bridge over Scrubgrass Creek on PA 3005Replaced by a new bridge
SCTR - Centerville Bridge (Hickman County, Tennessee)
(Main design: Pratt through truss)Rehabbed, retaining all truss spans, but replacing timber approachesMassive railroad bridge over Duck River on the South Central Tennessee Railroad near CentervilleOpen to railroad traffic
SE 6th Street Bridge (Old) (Polk County, Iowa)
Built 1906; Replaced 1973Lost Pratt through truss bridge over Des Moines River on SE 6th StreetReplaced by a new bridge
SE 8th Street Bridge (Umatilla County, Oregon)
Built 1909; rehabilitated 1955, replaced 2019 and placed in storageDismantled Pratt through truss bridge originally over Umatilla River on 8th Street in PendletonReplaced by a new truss bridge 2019 and dismantled for future use.
Seamons Ditch CR 475S Bridge (Benton County, Indiana)
Built ca. 1900Lost Bedstead Pratt pony truss bridge over Seamons Ditch on County Road 475 SouthReplaced by a new bridge on nearby CR 100W
Sears Hill Bridge (Staunton, Virginia)
Built ca. 1905; Rehabilitated 2013Pratt through truss bridge over CSXTRR on Pedestrian pathOpen to pedestrians only
Sears Mill Bridge (Rock Island County, Illinois)
Built 1881; Span lost and replaced with a Bailey truss span 1946; Replaced 1948Lost Pratt through truss bridge over Rock River on 11th StreetReplaced by new bridge
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