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.
Hunter Station Bridge (original) (Forest County, Pennsylvania)
Built 1934; rehabilitated 1971, bypassed, demolished Oct. 2017Through truss bridge over Allegheny River on US 62 (Hunter Station Road)Replaced by a new bridge
Hunter's Bridge (La Crosse County, Wisconsin)
Lost Pratt through truss bridge over Black River on US 53Replaced by a new bridge in 1982
Huntingdon Avenue Streetcar Viaduct (Baltimore, Maryland)
Built 1893, Steel arch added 1907, Demolished 1949Lost Steel Pratt deck truss, steel arch, and trestle bridge over Stony Run and Maryland & Pennsylvania RR on former United Railways & ElectricRemoved but not replaced
Huntress Bridge (Carroll County, New Hampshire)
Built 1936; rehabilitated 1994Pratt through truss bridge over Ossipee River on Swamp Road in EffinghamOpen to traffic
Huntsville Road Bridge (Madison County, Indiana)
Built 1952; rehabilitated 1985 and 2013-14Pratt through truss bridge over Fall Creek on Huntsville Road in PendletonRehabilitated and reopened to traffic
Hurd Park Bridge (Worth County, Iowa)
Pratt pony truss bridge over Shell Rock River on pedestrian trail at Hurd Park in NorthwoodOpen to pedestrians
Huron River Bridge (Wayne County, Michigan)
Replaced 1930Lost Pratt through truss bridge over Huron River on Jefferson AvenueNo longer exists
Huron Street Bridge (Milwaukee County, Wisconsin)
Lost Through truss bridge over Milwaukee River on Huron StreetNo longer exists
Huron Street Bridge (Old) (Waushara County, Wisconsin)
Replaced 1931Lost Pratt through truss bridge over Fox River on Huron StreetReplaced by a new bridge
Hurricane Creek Bridge (Lincoln County, Missouri)
Built ca. 1920Pony truss bridge over Hurricane Creek on Old Highway 79 (CR 925) just south of Route MOpen to traffic
Hurricane Creek Bridge (Saline County, Arkansas)
Replaced by new bridge in 1985 and moved to side of the road.Abandoned Through truss bridge over Hurricane Creek on Boone RoadReplaced by new bridge; moved nearby and abandoned
Hurricane Creek CR 400E Bridge (Johnson County, Indiana)
Lost Pony truss bridge over Hurricane Creek on County Road 400 EastCollapsed. Replaced by new bridge.
Hurricane Mills Bridge (Humphreys County, Tennessee)
Built 1911; Bypassed by new bridge in 1985; destroyed by flooding May 2010Lost through truss bridge over Hurricane Creek on Old Hurricane Mills RoadDestroyed by flooding
Hurstville Lime Works Gravity Railroad Bridge (Jackson County, Iowa)
Built ca. 1900Abandoned pratt pony truss bridge over North Fork Maquoketa River on Hurstville Lime Kiln Gravity RailroadAbandoned, one span is sunk into the Northern bank.
Hushaw Bridge (Fountain County, Indiana)
Built in 1886 as part of a 7-span bridge across the Wabash near Attica, moved to this location in 1924.Through truss bridge over Big Shawnee Creek on CR 300 EastOpen to traffic
Hushpuckena River Bridge (Bolivar County, Mississippi)
Bypassed by new bridge in 1990Abandoned pratt through truss bridge over Hushpuckena River on former Burroughs RoadAbandoned
Hutchins Bridge (Madison County, Montana)
Built 1902; rehabilitated 2005Pratt Through Truss bridge over Madison River on CR 220Open to traffic
Hutchison Lane Bridge (Ralls County, Missouri)
Built 1913 by Miller & Borcherding; rehabilitated 1997Pony truss bridge over East Lick Creek on Hutchison Lane just west of MO 19Open to traffic
Hutsell Truss Bridge (Meigs County, Tennessee)
One of the first bridges built in Meigs County, TN, 1910Abandoned one-lane bedstead pony truss bridge over Big Sewee CreekDerelict/abandoned
HVR - Schroon River Bridge (Warren County, New York)
Lost Pratt through truss bridge over Schroon River on Hudson Valley RailwayRemoved
Hyde Bridge (Berrien County, Michigan)
Built in 1906 by the Elkhart Bridge & Iron Company; Demolished October 1977 for replacementLost Pratt through truss bridge over Paw Paw River on Bundy RoadReplaced by a new bridge
Hyndman Bridge (Bedford County, Pennsylvania)
Built 1882 by the Columbia Bridge Works; replaced 1997Lost wrought-iron through truss bridge over Little Wills Creek on Schellsburg Street (TR 350) in HyndmanReplaced by new bridge
I & M Canal Bridge (Grundy County, Illinois)
Bedstead Pratt pony truss bridge over I and M Canal on an access to the I and M Canal TrailOpen to pedestrians
I&CT - Big Blue River Bridge (Shelby County, Indiana)
Built by 1903; line abandoned by 1932Lost Pratt through truss bridge over Big Blue River on Traction LineRemoved but not replaced
I-5 - Antlers Bridge (Shasta County, California)
Built 1941; rehabilitated 1967; Demolished 2017Spandrel braced cantilever Deck truss bridge over Sacramento River on I-5 in Lakehead-LakeshoreDemolished
I-87 Normans Kill Bridge (Albany County, New York)
Built 1954; rehabilitated 1998Deck truss bridge over Normans Kill on I-87 in AlbanyOpen to traffic
I-90 - Westfield River Bridge (Hampden County, Massachusetts)
Built 1957; rehabilitated 1990Deck truss bridge over Westfield River & US 20 on I-90 in MontgomeryOpen to traffic
I-91 Bridge (Windham County, Vermont)
Built 1960Deck truss bridge over West River on I-91Replaced by a new bridge
IA139 Kendallville Bridge (Winneshiek County, Iowa)
Built in 1930Lost Bridge over Upper Iowa River on Old alignment of Iowa 139Replaced by a new bridge
IA2 Monkey Run Iron Bridge (Louisa County, Iowa)
Collapsed during removal 1929Lost Pratt pony truss bridge over Monkey Run on Iowa Primary 2Collapsed during removal
IA38 Sugar Creek Bridge (Muscatine County, Iowa)
Lost Pratt pony truss bridge over Sugar Creek on IA 38Replaced by a new bridge
IA394 Skunk River Bridge (Des Moines County, Iowa)
(Main design: Parker through truss)Built 1934, replaced in 2011Lost through truss bridge over Skunk River on IA 394 (Augusta Main Road)Replaced by a new bridge
IA5 South River Bridge (Warren County, Iowa)
Built 1928; made obsolete by a new bridge in 1951; later closed to traffic, Collapsed 2012, later removedLost through truss bridge over South River on Elk Horn StreetRemoved after the bridge collapsed in 2012
IAIS - Walnut Creek Bridge #2 (Polk County, Iowa)
Built 1902, Piers Rebuilt 1943Pony truss bridge over Walnut Creek on Iowa Interstate RailroadOpen to traffic
IC - Argyle South Bridge (Lafayette County, Wisconsin)
Lost Pratt through truss bridge over Pecatonica River on Illinois Central RailroadReplaced by a new bridge
IC - Big Muddy River Bridge (Jackson County, Illinois)
Built 1886; Replaced 1903Lost Pratt through truss bridge over Big Muddy River on Illinois Central RailroadReplaced by a new bridge
IC - Cedar Creek Bridge (Pocahontas County, Iowa)
Built 1891; Replaced 1947Lost Pratt through truss bridge over Cedar Creek on Railroad (IC)Replaced by a new bridge
IC - Cedar River Bridge (Bremer County, Iowa)
Built Ca. 1868, Replaced 1919Lost Pratt through truss bridge with vertical endposts over Cedar River in JanesvilleReplaced
IC - Drury Creek Deck Truss (Jackson County, Illinois)
Replaced 1899Lost Pratt deck truss bridge over Drury Creek on Illinois Central RailroadReplaced by a new bridge
IC - East Omaha Swing Bridge (Douglas County, Nebraska)
Built 1893 by Phoenix Bridge Company, second swing span built in 1903 by American Bridge Co.Through truss swing bridge over Missouri River on Canadian National RailwayClosed to all traffic
IC - First Dubuque Bridge (Dubuque County, Iowa)
(Main design: Pratt through truss)Built 1868, Approach Trusses added 1872, Swing Span Replaced 1896, Rest of Bridge Replaced 1900Lost Pratt through truss bridge over Mississippi River on Former Illinois Central RailroadReplaced by a new bridge
IC - Grayville Bridge (White County, Illinois)
Built 1892, rehabilitated in 1972, abandoned in 1996, partially destroyed by flooding in 2005Through truss bridge over Wabash River on former Illinois Central Railroad south of GrayvillePartially destroyed by flood
IC - Hatchie River Bridge (Hardeman County, Tennessee)
Abandoned through truss bridge over Hatchie River on Illinois Central RailroadAbandoned
IC - Iowa River Bridge (1894) (Hardin County, Iowa)
Built 1894; Replaced 1909Lost Deck truss bridge over Iowa River on Illinois Central RailroadReplaced by new bridge
IC - Kent Creek Bridge (Winnebago County, Illinois)
Located here in 1911, Truss likely dates from 1870sPratt through truss bridge over Kent Creek on Illinois Central Railroad spurNo longer exists
IC - Little Sioux River Bridge #1 (Cherokee County, Iowa)
Built 1886, trestle approaches rebuilt 1918Abandoned Pratt Through Truss Bridge over Little Sioux River on Abandoned Illinois Central RailroadAbandoned
IC - Little Sioux River Bridge #2 (Cherokee County, Iowa)
Built 1887, trestle approaches updated 1960Abandoned Pratt Through Truss Bridge over Little Sioux River on Abandoned Illinois Central RailroadAbandoned
IC - Little Sioux River Bridge #3 (Woodbury County, Iowa)
Built 1887, trestle approaches updated 1918Abandoned Pratt Through Truss Bridge over Little Sioux River on Abandoned Illinois Central RailroadAbandoned
IC - Little Sioux River Bridge #4 (Woodbury County, Iowa)
Built 1886, 1881 Truss Spans added 1911, Mostly Removed Ca. 1999Abandoned Pratt Through Truss Bridge over Little Sioux River on Abandoned Illinois Central RailroadMost Removed but not replaced
IC - Mackinaw River Bridge (McLean County, Illinois)
Built 1898, Approaches Added 1902Abandoned pratt deck truss bridge over Mackinaw River on Abandoned Illinois Central RailwayDerelict/abandoned
IC - Maquoketa River Bridge (Delaware County, Iowa)
Built ca. 1886; Replaced 1927Lost Pratt through truss bridge over Maquoketa River on Illinois Central RailroadReplaced by a new bridge
IC - Rock River Bridge (3rd) (Lee County, Illinois)
Built ca. 1868; Replaced 1920Lost Pratt deck truss bridge over Rock River on Illinois Central RailroadReplaced by a new bridge
IC - Wapsipinicon River Bridge (Buchanan County, Iowa)
Replaced 1914Lost Pratt through truss bridge over Wapsipinicon River on RailroadReplaced by a new bridge
IC&S - Flatrock River Bridge (Bartholomew County, Indiana)
Lost Pratt through truss bridge over Flatrock River on Indianapolis, Columbus & Southern Traction Co.Removed
IC/CNW Overpass (Sac County, Iowa)
Built 1899, Removed sometime after the 1990 aerial imagery was takenLost Pratt through truss bridge over Railroad (CNW) on Railroad (IC)Removed
Ida Avenue Bridge (Jefferson County, Nebraska)
Lost Pratt through truss bridge over Little Blue River on Ida AvenueReplaced by a new bridge
IHRC - Big Bayou Bridge (Gibson County, Indiana)
Built 1915, rehabilitated in 1972Pratt through truss bridge over Big Bayou River on dirt road, former Illinois Central RailroadAbandoned
Illinois Prairie Path - Volunteer Bridge (Du Page County, Illinois)
Built 1907 for CA&E RR, railroad abandoned 1959, converted to trail use ca. 1964, approaches rebuilt 2010Pratt through truss bridge over Union Pacific RR (formerly Chicago & North Western RR) on Illinois Prairie Path (formerly Chicago Aurora & Elgin RR)Open to pedestrians
Illinois River Bridge (Cherokee County, Oklahoma)
Built circa 1920; Bypassed by new alignment of US 62 and abandoned 1964; torn down 2017Abandoned through truss bridge over Illinois River on Old US 62Removed but not replaced
Illinois Terminal - East St. Louis Viaduct (St. Clair County, Illinois)
(Main design: Pennsylvania through truss)Removed 1932Lost Pennsylvania through truss bridge over Railroad on Illinois Terminal SystemRemoved
Illinois Terminal - McKinley Bridge (Peoria County, Illinois)
(Main design: Deck plate girder)Built 1907, closed to traffic in 1951Lost Bascule bridge over Illinois River on Illinois Terminal Railroad in PeoriaNo longer exists
Illinois Terminal - Mitchell Viaduct (Madison County, Illinois)
Removed 1932Lost Pratt through truss bridge over Railroad on Alton, Granite & St. Louis RailwayRemoved but not replaced
Illinois Traction/Wabash Overpass (Old) (Piatt County, Illinois)
Built 1907; Replaced 1928/29Lost Pratt through truss bridge over Wabash Railroad on Illinois Traction SystemReplaced by a new bridge
Imboden Bridge (Lawrence County, Arkansas)
(Main design: Parker pony truss)Built 1937 by C.F. Lytle of Sioux City, IowaPony and deck truss bridge over Spring River and the Frisco Railroad on US 62 at ImbodenOpen to two-lane traffic, with a pedestrian sidewalk
Imhoff Road Bridge / Dick's Bridge (Cooper County, Missouri)
(Main design: Parker through truss)Built 1908 by Kansas City Bridge Co.Two-span through truss bridge over Lamine River on Imhoff RoadClosed to traffic
Imlaystown Bridge (old) (Monmouth County, New Jersey)
Lost Pratt pony truss bridge over Doctor's Creek on Davis Station RoadNo longer exists
IMRR - Sangamon River Bridge (Mason County, Illinois)
Through truss bridge over Sangamon River on Chicago & Illinois Midland Railway SE of KilbourneOpen to traffic
IN 238 - Fall Creek Bridge (Hamilton County, Indiana)
Lost Pratt through truss bridge over Fall Creek on IN 238Replaced by a new bridge
IN 42 White Lick Creek Bridge (Morgan County, Indiana)
Replaced in 1964Lost Pratt through truss bridge over White Lick Creek on IN 42Replaced by a new bridge
IN 58 - Denios Creek Bridge (Bartholomew County, Indiana)
Built 1903Lost Pratt pony truss bridge over Denios Creek on IN 58Replaced by a new bridge
IN 75 - Kilmore Creek Bridge (Clinton County, Indiana)
Lost Pratt through truss bridge over Kilmore Creek on IN 75Replaced by a new bridge in 1967.
IN61 South Fork Patoka River Bridge (Pike County, Indiana)
Built 1932; rehabilitated 1984; replaced 2002Lost through truss bridge over South Fork Patoka River on IN 61Replaced by new bridge
Independence Bridge (Pike County, Illinois)
Built or relocated here 1962; replaced 2013Through truss bridge over Honey Creek on Road 900 N (Township Road 359) east of Independence, 4.16 mi. east of IndependenceReplaced by a new bridge
Independence Road Bridge (Herkimer County, New York)
Built 1895; rehabilitated 2003Pratt through truss bridge over North Branch Moose River on snowmobile trailOpen to pedestrians only
Indian Creek Bridge (Jasper County, Iowa)
(Main design: Warren pony truss with all verticals)Built 1914; rehabilitated 1950Pony truss bridge over Indian Creek on 95th Avenue (95th Ave)Open to traffic
Indian Creek Bridge (Shelby County, Iowa)
Built 1926Through truss bridge over Indian Creek on Woodland RoadOpen to traffic
Indian Creek Bridge (Greene County, Indiana)
Built 1905Pony truss bridge over Indian Creek on CR 1360 EastReplaced by a new bridge
Indian Creek Bridge (Madison County, Illinois)
replaced a pony plate girder railroad bridge (which was relocated) using the same abuntmentsModern pratt pony truss bridge over Indian Creek on MCT Watershed Trail in South RoxanaOpen to pedestrians and bicyclists
Indian Creek Bridge (Monroe County, West Virginia)
Built 1891, removed 2010Lost through truss bridge over Indian Creek on CR 23/8Replaced by a new bridge
Indian Creek Bridge (Polk County, Iowa)
Built 1916Through truss bridge over Indian Creek on NE 162nd AvenueOpen to traffic
Indian Creek Bridge (LaSalle County, Illinois)
Pony truss bridge over Indian Creek on Private Drive
Indian Creek Bridge (Butts County, Georgia)
Built 1929Lost Pratt pony truss bridge over Indian Creek on CR 230 Indian Creek RoadReplaced by a new bridge in 1992
Indian Creek CR 650W Bridge (Montgomery County, Indiana)
Built in 1914 by the Elkhart Bridge & Iron Company; replaced 1992Lost through truss bridge over Indian Creek on County Road 650 WestReplaced by new bridge
Indian Creek Route EE Bridge (McDonald County, Missouri)
Built 1928Three-span through truss bridge over Indian Creek on Route EE in LanaganOpen to two-lane traffic
Indian Creek-Yale Road Bridge (Bourbon County, Kansas)
Built in 1898 by the Wrought Iron Bridge CompanyThrough truss bridge over Indian Creek on Yale Rd.Closed to all traffic
Indian Ford Bridge (Stoddard County, Missouri)
Formerly a bridge on the Frisco Hoxie Branch railroad built in 1926(?) and later retrofitted for vehicle use when the line was discontinued in 1967Through truss bridge over St. Francis River between Puxico and Rombauer on Stoddard CR 499Closed
Indian Ford Bridge (Fulton County, Illinois)
Built ca. 1917; replaced 1984. One of the nine bridges submitted to NRHP in "Metal Highway Bridges of Fulton County Thematic Resources", 1980-10-29Lost Pratt through truss bridge over Spoon River on County Highway 20Replaced by new bridge
Indian Grove Road Bridge (Wright County, Missouri)
Built ca. 1920; retrofitted as a steel stringer bridge in 1978Pony truss bridge over a branch of Gasconade River on Indian Grove RoadOpen to traffic
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