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.
Petroleum Center Bridge (Venango County, Pennsylvania)
Built 1884 by the Morse Bridge Co.; rehabilitated 1984Two-span through truss bridge over Oil Creek on Petroleum Center RoadOpen to one-lane traffic
Petticoat Lane Bridge (Orange County, New York)
Built 1884 by the Groton Iron Bridge Co.Removed through truss bridge over Shawangunk Kill on Petticoat Lane, northeast of BloomingburghIn storage/disassembled
PGR - Soquel Creek Bridge (Santa Cruz County, California)
Pratt Deck truss bridge over Soquel Creek on Progressive Rail Inc. tracksOpen Railroad only
Phalen Park Bridge (Ramsey County, Minnesota)
Built 1906Bedstead Pratt pony truss bridge over South Channel on a pedestrian trail in St. PaulOpen to pedestrians only
Phelps Mill Bridge (Otter Tail County, Minnesota)
Built 1907; Rehabilitated 2012Pony truss bridge over Otter Tail River on CR 970Open to pedestrians only
Philadelphia Church Road Bridge (Gaston County, North Carolina)
Replaced 1977Lost Pratt through truss bridge over S. Fork Catawba River on Philadelphia Church RoadReplaced by new bridge
Philson Bridge (Somerset County, Pennsylvania)
Built ca. 1900Pony truss bridge over Wills Creek on TR 713 in CallimontOpen to traffic
Phoenix Bridge (Botetourt County, Virginia)
Built 1887 by the Phoenix Bridge Co.; Erected here in 1903 by the C&O Railroad; Converted to auto use in 1963.Pratt through truss bridge over Craig Creek on Ball Park Road (Route 685)Open to traffic
Phoenix Iron Company Bridge (Chester County, Pennsylvania)
Built 1871; restoration 2002; Pedestrian bridge on grounds of the Schuylkill River Heritage CenterWrought iron Pratt through truss bridge over French CreekOpen to pedestrians only
Phoenix Park Trail Bridge (Eau Claire County, Wisconsin)
(Main design: Whipple through truss)Built 1903 using relocated parts, abandoned 1981, later turned into a trailPratt through truss bridge over Chippewa River on Chippewa River State Trail (former railroad path)Open to pedestrians
Phoenix Road Bridge (Otsego County, New York)
Built around 1895 by the Groton Bridge & Mfg., Co.Abandoned truss bridge over Susquehanna River on Phoenix RoadDerelict/abandoned
Piano Bridge (Fayette County, Texas)
Built 1885 by the King Bridge Company, rehabilitated 2011-12Through truss bridge over East Navidad River on Piano Bridge RoadReopened to traffic on April 2, 2012
Pierce Bridge (Grafton County, New Hampshire)
Built 1928 by the American Bridge Co.; Bypassed by new bridge in 1983Skewed Pratt through truss bridge over Ammonoosuc River on former U.S. 302 (NH 10)Open to pedestrians only
Pierceville Road Bridge (Plymouth County, Massachusetts)
Built 1878; relocated here 1887; rehabilitated 1996Pony truss bridge over Massachusetts Coastal Railroad on Pierceville Road in WarehamOpen to traffic
Pigeon Creek Bridge (Iroquois County, Illinois)
Built 1904Lost through truss bridge over Pigeon Creek on TR 146, 0.5 mi. east of Cissna PkReplaced by a new bridge
Pigeon Creek CR 150S Bridge (Gibson County, Indiana)
Built ca. 1900Lost Bedstead Pratt pony truss bridge over Pigeon Creek on County Road 150 SouthReplaced by a new bridge
Pigeon Creek CR 600N Bridge (Warrick County, Indiana)
Abandoned Pratt bedstead pony truss bridge over Pigeon Creek on CR 600NDestroyed by flooding
Pigeon Creek TR 207 Bridge (Jackson County, Ohio)
Built before 1900Former pony truss bridge over Pigeon Creek on TR 207Replaced by a new bridge
Pigeon River Bridge (Lagrange County, Indiana)
Built ca.1900; replaced 1992Lost through truss bridge over Pigeon River on CR 550 WReplaced by new bridge
Pigeon River CR 100W Bridge (Lagrange County, Indiana)
Built ca. 1905Lost Pratt through truss bridge over Pigeon River on CR 100WReplaced by a new bridge
Pike Creek Bridge (Iroquois County, Illinois)
Built 1955Lost through truss bridge over Pike Creek on TR 224, 3.25 mi. west of MartintonReplaced by a new bridge
Pilot Grove Creek CR 396 Bridge (Daviess County, Missouri)
Built ca. 1910, probably by the Dildine Bridge Co.Pony truss bridge over Pilot Grove Creek on CR 396Open to traffic
Pilot Grove Creek CR 422 Bridge (Daviess County, Missouri)
Probably built 1947 by the Chillicothe Iron WorksPony truss bridge over Pilot Grove Creek on CR 422Open to traffic
Pine Bush Bridge (Orange County, New York)
Built ca. 1890'sLost Pratt through truss bridge over Wallkill River on Main Street in Pine BushReplaced by a new bridge
Pine Creek Bridge (St. Joseph County, Indiana)
Replaced 1993Lost pony truss bridge over Pine Creek on Riley RoadReplaced by new bridge
Pine Creek CR 10 Bridge (Lawrence County, Ohio)
Built 1934; rehabilitated 1990Two-span pony truss bridge over Pine Creek on County Road 10Open to traffic
Pine Creek CR 257 Bridge (Scioto County, Ohio)
Built 1940. Closed in September 2008.Through truss bridge over Pine Creek on CR 257 in WheelersburgDemolished and replaced.
Pine Creek Grist Mill Bridge (Muscatine County, Iowa)
Built 1878 by the Wrought Iron Bridge Co.; Replaced on a new alignment 1963 and converted to pedestrian use.Pratt through truss bridge over Pine Creek in Wild Cat Den State ParkOpen to pedestrians
Pine Creek Park Bridge (Fairfield County, Connecticut)
Built as an approach span to an 1872 drawbridge in Middletown, it was re-used in 1890 to carry Mill Hill Road in Fairfield over the tracks of the New Haven Railroad. In 1979, the bridge was relocated to its current location.Pratt pony truss bridge over Pine Creek on a pedestrian path in Pine Creek ParkOpen to pedestrians
Pine Creek TR 278 Bridge (Scioto County, Ohio)
Built 1925Lost pony truss bridge with cast iron bents over Pine Creek on TR 278Replaced by a new bridge
Pine Hill Road Bridge (Hunterdon County, New Jersey)
Built ca. 1900Pony truss bridge over South Branch Raritan River on Pine Hill RoadOpen to traffic
Pine River Bridge (Manistee County, Michigan)
Built 1934; rehabilitated 1989Deck truss bridge over Pine River on M-55Open to traffic
Pine Street Bridge (Lehigh County, Pennsylvania)
Built 1952Deck truss bridge over Lehigh River on Pine Street in CatasauquaOpen to traffic
Pine Street Bridge (Osage County, Kansas)
Pratt through truss bridge over Atchison Topeka and Santa Fe Railroad on Pine StreetOpen to pedestrians
Pine Street Bridge (Windham County, Connecticut)
(Main design: Whipple deck truss)Built 1880; Closed c.1985Pin connected Whipple deck truss bridge over Willimantic River on Pine Street in WillimanticClosed to all traffic
Pine Street Bridge (Old) (Lehigh County, Pennsylvania)
(Main design: Parker through truss)Built 1907; Replaced 1952Lost Parker through truss bridge over Lehigh River on Race StreetReplaced by a new bridge
Piney Branch Bridge (Randolph County, Illinois)
Built 1901; bypassed by new bridge in 2002; removed 2009Lost bedstead pony truss bridge over Piney Branch on Piney Creek RoadNo longer exists
Piney Creek Iron Bridge (Bastrop County, Texas)
Built 1888; bypassed by new bridge in 1982Through truss bridge over Piney Creek on Main Street in BastropClosed to traffic
Pingree Bridge (Merrimack County, New Hampshire)
Built 1893 by Groton Bridge Co.; purchased 2010 by Peter Ladd, refurbished and installed across Warner River September 18, 2013Pin connected Pratt pony truss bridge over Warner River on pathRemoved from original location 2010, moved to new location after refurbishment 2013
Pinhook Bridge (Putnam County, Indiana)
Built ca. 1910; rehabilitated 1984Through truss bridge over Big Walnut Creek on CR 125 NorthClosed
Pipe Creek Bridge (Ottawa County, Kansas)
Built 1915Through truss bridge over Pipe Creek on P.7-7 Local, 2.7 mi. east and 6.0 mi. north of MinneapolisOpen to traffic
Pipe Creek Bridge (Ottawa County, Kansas)
Built 1885Bedstead pony truss bridge over Pipe Creek on S.4-4.5 Local, 0.3 mi. west of LamarOpen to traffic
Pipe Creek CR 900W Bridge (Madison County, Indiana)
Built in 1913 by the Elkhart Bridge & Iron Company, replaced in 1987Lost Pratt through truss bridge over Pipe Creek on CR 900WReplaced by new bridge
Pipeline Bridge (Nueces County, Texas)
Pratt through truss bridge over Navigation Boulevard on PipelineOpen
Pipher Hollow Bridge (Orange County, Indiana)
Built ca. 1900Lost Pratt through truss bridge over Lick Creek on County Road 410 WestReplaced by a new bridge
PIR - Chartiers Creek Bridge #2 (Allegheny County, Pennsylvania)
Railroad abandoned 1959Abandoned pratt through truss bridge over Chartiers Creek on PRR Chartiers BranchDerelict/abandoned
Pit River Bridge (Modoc County, California)
Built 1919; rehabilitated 1968Pony truss bridge over Pit River on CR 75Open to traffic
Pithole Creek Bridge (Venango County, Pennsylvania)
Built 1897; reconstructed 1997Pony truss bridge over Pithole Creek on Lesher RoadOpen to traffic
Pitner Ditch CR 875W Bridge (La Porte County, Indiana)
Built ca. 1905Lost Pratt through truss bridge over Pitner Ditch on County Road 875 WestReplaced by a new bridge
Pitt Street Bridge (Amador County, California)
Built 1925Pony truss bridge over Jackson Creek on Pitt Street in JacksonOpen to traffic
Pitt Street Bridge (Charleston County, South Carolina)
Built 1898 for an interurban; Widened to allow cars 1923; Rails removed 1927; Replaced by the Ben Sawyer Bridge & closed 1945; Deeded to the city of Mount Pleasant and turned into a fishing pier 1950; Portion destroyed by Hurricane Hugo in 1989Lost Pratt swing through truss bridge over Cove Inlet on Pitt St.Destroyed by Hurricane Hugo
Pittsburg Bridge (Van Buren County, Iowa)
Built 1882, One span collapsed Nov. 15, 1958 after a car collision; Replaced 1960Lost Pratt through truss bridge over Des Moines River on RoadReplaced by a new bridge
Plainfield Bridge (Older) (Bremer County, Iowa)
Replaced ca. 1918Lost Pratt through truss bridge over Cedar River on RFD 120Replaced by a new bridge
Plainwell Bridge (Allegan County, Michigan)
Lost Pratt through truss bridge over Kalamazoo River on Main StreetReplaced by a new bridge
Plaquemine LA 1 Bridge (Old) (Iberville Parish, Louisiana)
Built 1898 ; replaced with a second swing bridge 1908, replaced 1950Lost Pratt through truss bridge over Plaquemine Bayou on Louisiana 1Replaced by a new bridge
Platte River Bridge (Cass County, Nebraska)
Lost Pratt pony truss bridge over Platte River on HighwayReplaced by a new bridge
Plattin Creek Wagon Bridge (Jefferson County, Missouri)
Lost Pratt through truss bridge over Plattin Creek on RoadReplaced by a new bridge
Plattsburg Road Bridge (Clay County, Missouri)
Abandoned through truss bridge over Fishing River on Plattsburg RoadBypassed in 1980 by a new bridge and abandoned
Pleasant Hill Road Bridge (Etowah County, Alabama)
Built 1882 at Walnut Grove; relocated during 1930s; disassembled 2009Dismantled pony truss bridge formerly over Black Creek on Pleasent Hill Road in GadsdenPartially Assembled in a park
Pleasant Ridge Road Bridge (Caldwell County, Missouri)
Built 1904 by contractor John H. SparksBedstead pony truss bridge over Cottonwood Creek on N.E. Pleasant Ridge RoadOpen to traffic
Pleasant Street Bridge (Old) (Milwaukee County, Wisconsin)
Replaced 1972Lost Pratt through truss bridge over Milwaukee River on Pleasant StreetReplaced by a new bridge
Pleasant Valley Bridge (Knox County, Missouri)
Built 1913, replaced 2008Lost pony truss bridge over South Fabius River on CR 282Replaced by a new bridge
Pleasure Bay Bridge (Monmouth County, New Jersey)
Built 1884; Replaced 1965Lost Swing through truss bridge over Branchport Creek on Monmouth BlvdReplaced by new bridge
Plum Bayou Bridge (Jefferson County, Arkansas)
Lost four-span pony truss bridge over Plum Bayou on AR 31 (formerly AR 15) south of SherrillNo longer exists
Plum Breek Bridge (Caldwell County, Texas)
Bridge over Plum Creek on CR 197 (Young Lane)Derelict/abandoned
Plum Brook Road Bridge (Westchester County, New York)
Built 1904; rehabilitated 1942Through truss bridge over Muscoot Reservoir on Plum Brook Road in Golden's BridgeClosed to all traffic
Plum Creek Branch Bridge (Switzerland County, Indiana)
Built ca. 1895Lost Pratt pony truss bridge over Branch of Plum Creek on Plum Creek RoadReplaced by a new bridge
Plum Creek Bridge (Mitchell County, Kansas)
Built 1935Pony truss bridge over Plum Creek, 2.4 mi. east and 1.5 mi. south of BeloitOpen to traffic
Plum Creek Bridge (Brown County, Kansas)
Built 1945Pony truss bridge over Plum Creek, 0.4 mi. south and 5.6 mi. west of PowhattanOpen to traffic
Plum Creek Bridge (Caldwell County, Texas)
Built 1920Through truss bridge over Plum Creek on Creekside Drive (CR 146)Bypassed by a new bridge
Plum River Bridge (Jo Daviess County, Illinois)
Built 1925Pony truss bridge over Plum River on TR 197 (Parker Rd.)Open to traffic
Plum River Bridge (Carroll County, Illinois)
Abandoned Pratt through truss bridge over Plum River on Abandoned road alignmentDerelict/abandoned
Plumb Street Bridge (Beaver County, Pennsylvania)
Abandoned pratt pony truss bridge over North Fork Little Beaver Creek on Plumb RoadDerelict/abandoned
Plummer Creek Bridge (Greene County, Indiana)
Built 1894; replaced 2007Replaced pony truss bridge over Plummer Creek on CR 760 EastReplaced by new bridge and now sitting in storage
Plummer Creek Bridge (Greene County, Indiana)
Built ca. 1910; Replaced 2017Pony truss bridge over Plummer Creek on CR 150 EastReplaced by a new bridge
Plummer Creek Bridge (Greene County, Indiana)
Built 1884; replaced 1996Lost pony truss bridge over Plummer Creek on CR 610 EReplaced by new bridge
PM - Raisin River Bridge (Old) (Monroe County, Michigan)
Built 1896; Replaced 1911Lost Pratt through truss bridge over Raisin River on Pere Marquette RailroadReplaced by a new bridge
PNWR - Tualatin River Bridge (Washington County, Oregon)
Built 1906Pratt through truss bridge over Tualatin River on Portland and Western Railroad (PNWR)Open to traffic
PNWR - Willamette River Bridge (Linn County, Oregon)
Built Ca. 1910Vertical lift bridge over Willamette River on Portland and Western Railroad (PNWR)Open to traffic
PNWTC - Skagit River Bridge (Skagit County, Washington)
Built 1912; Removed ca. 1930 after being condemned in 1928Lost Pratt through truss drawridge over Skagit River on former Bellingham and Skagit Interurban RailwayOnly two piers remain
Podunk Road Bridge (Tompkins County, New York)
Built 1915; rehabilitated 1951Pratt pony truss bridge over Taughannock Creek on Podunk RoadOpen to traffic
Poe Powerhouse Bridge (Butte County, California)
Pratt deck truss bridge over North Fork Feather River on Poe Powerhouse RoadOpen to traffic
Point Bridge (1877) (Allegheny County, Pennsylvania)
(Main design: Eyebar suspension)Built 1877; Replaced 1927Lost Chain suspension bridge over Monongahela RiverReplaced by a new bridge
Point Mountain Road Bridge (Hunterdon County, New Jersey)
Built ca. 1885; rehabilitated 1960; replaced with new pony truss in 2019Pony truss bridge over Musconetcong River on CR 645Replaced by a new bridge
Point Remove Creek AR 113 Bridge (Conway County, Arkansas)
Built 1926 by the Virginia Bridge & Iron Co.; bypassed ca. 2005Through truss bridge over Point Remove Creek on AR 113 west of MorriltonOpen to pedestrians only
Poison Creek Bridge (Perry County, Indiana)
Built 1905Through truss bridge over Poison Creek on CR 104Bridge dismantled and replaced, trusses saved for possible reuse.
Poke Bayou Bridge (Independence County, Arkansas)
Lost through truss bridge over Poke Bayou in BatesvilleNo longer exists
Polecat Creek Bridge (Creek County, Oklahoma)
Built 1925Through truss bridge over Polecat Creek on 161st St. S. (E0750)Open to traffic
Polecat Creek Bridge (Creek County, Oklahoma)
Built c.1915, bypassed in 1965.Abandoned through truss bridge over Polecat Creek on old alignment of Slick Rd.Derelict/abandoned
Polk Avenue Bridge (Plymouth County, Iowa)
Built 1958Through truss bridge over Deep Creek on Polk AvenueOpen to traffic
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