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.
Lye Creek CR 800N Bridge (Montgomery County, Indiana)
Built 1894Lost Bedstead Pratt pony truss bridge over Lye Creek on County Road 800 NorthReplaced by a new bridge
Lyell Ford Bridge (Marion County, Missouri)
Built 1898 by the Kansas City Bridge Co.Lost through truss bridge over South Fabius River on CR 117Destroyed by flooding Sunday, June 28, 2015 after 6pm.
Lyman's Creek Bridge (Lee County, Kentucky)
Lost Pratt through truss bridge over Lyman's CreekNo longer exists
Lyndon Bridge (Whiteside County, Illinois)
(Main design: Pennsylvania through truss)Built 1894 by Keefers & Wyncoop; span added 1912; Closed in 1980; saved from demolition 1998Pennsylvania through truss bridge over Rock River on 6th Avenue (Lyndon Road)Open to pedestrians
Lynn Line Road Bridge (Wood County, Wisconsin)
Built 1906Pony truss bridge over East Fork Black River on Lynn Line RoadClosed to all traffic
Lyon Creek Bridge (Dickinson County, Kansas)
Built Ca. 1900, according to the Kansas State Historical SocietyAbandoned pratt through truss bridge over Lyon Creek on 1600 AvenueDerelict/abandoned
Lytle Fork Bridge (Scott County, Kentucky)
Abandoned pony truss bridge over Lytle ForkAbandoned
M - 104 Bridge (Older) (Ottawa County, Michigan)
Replaced 1924Pratt through truss bridge over Spring Lake on M - 104No longer exists
M&B - Steven Branch Bridge (Washington County, Vermont)
Built for the Central Vermont Railroad; Abandoned 1958Pratt through truss with all verticals bridge over Steven Branch on Abandoned Montpelier & Barre (Central Vermont) RailroadOpen to pedestrians / snowmobiles only
M&NA - White River Bridge (White County, Arkansas)
Lost Through truss bridge over White River on Missouri & North Arkansas RRRemoved
M&StL - Walnut Creek Bridge (Polk County, Iowa)
Built 1901; Removed ?Lost Pratt through truss bridge over Walnut Creek on Minneapolis & St. Louis RailwayRemoved
Ma & Pa - Muddy Creek Bridge (York County, Pennsylvania)
Built 1900Abandoned through truss bridge over Muddy Creek on Maryland & Pennsylvania RailroadDerelict/abandoned on private property posted against trespassing
MacArthur Bridge (St. Louis, Missouri)
(Main design: Pennsylvania through truss)Built 1907-1917 by the City of St. Louis to break the monopoly of the Terminal Railroad Association, which controlled the two other bridges at St. Louis and charged unreasonable tolls. Automobile deck closed to traffic in 1981.Three-span through truss bridge over the Mississippi River in St. Louis, south of the Poplar Street BridgeOpen to railroad traffic only
Machia Road Bridge (Franklin County, Vermont)
Built 19282 span Pratt through truss bridge over Missisquoi River on C3006 in HighgateOpen to traffic
Mackelroy Creek Bridge (Richardson County, Nebraska)
Built 1904Pony truss bridge over Mackelroy Creek on 711 Road (37th Street)Closed to all traffic
Mackville Road Bridge (Lincoln County, Missouri)
Built 1936; replaced 2004Lost through truss over North Fork Cuivre River on Mackville Road just beyond the end of Route K at BriscoeReplaced by modern bridge
Macon Bridge (Macon County, Missouri)
Lost through truss bridge on a city street in MaconNo longer exists
Macoupin Creek Bridge (Macoupin County, Illinois)
Pony truss bridge over Macoupin Creek on Lake Catatoga Road south of MacoupinClosed
Mad River CR 175 Bridge (Logan County, Ohio)
Built 1910Pony truss bridge over Mad River on CR 175 in West LibertyReplaced by a new truss bridge in 2007
Maddox Creek CR 115 Bridge (Van Wert County, Ohio)
Built 1900Pony truss bridge over Maddox Creek on CR 115 (Keltner Road)Road closed, bridge removed
Maddox Mill Bridge (Whitfield County, Georgia)
Built sometime around 1915, abandoned in the 1930's or 40's when Chatsworth Highway was moved to it's present alignmentAbandoned pratt pony truss bridge over Coahulla Creek on old alignment of Chatsworth Highway / SR 52Abandoned on private property
Madison Ave. White River Bridge (Madison County, Indiana)
(Main design: Baltimore through truss)Lost Baltimore through truss bridge over White River on Madison Ave. in AndersonReplaced by new bridge
Madison Road Bridge (Lake County, Ohio)
Lost Bridge over Grand River on Bailey Rd and Klasen RdDemolished, bypassed by new bridge
Madison Street Bridge (1891) (Multnomah County, Oregon)
Built 1891 Rebuilt into second bridge 1900Lost Pratt through truss swing bridge over Willamette river on Madison Ave now Hawthorne street.Replaced by a new bridge
Madison-Milton Bridge (Jefferson County, Indiana)
(Main design: Warren through truss)Built 1928-29; rehabilitated 1997, imploded August 2013Cantilevered through truss bridge over Ohio River on US 421 between Madison, IN, and Milton, KYAll main spans demolished.
Madisonville Bridge (Ralls County, Missouri)
Built 1893 by St. Louis Bridge & Iron Co.; relocated to a nearby field in 2005Through truss bridge formerly over Spencer Creek on Madisonville Road just beyond the end of Route C, but now located in a field just north of its old locationRelocated to a nearby field after being purchases by a local couple. Replaced by new bridge
Maffit Bridge (Macon County, Illinois)
Built 1881Lost Through truss bridge over Sangamon RiverDemolished
Magnolia Garden Bridge (Orleans Parish, Louisiana)
Built in 1886 by the Smith Bridge Company; moved to present location in 1909; restored for pedestrian use in 1989Pratt through truss bridge over Bayou St. John at Harding DriveOpen to pedestrians
Magnum Through Truss (Eastland County, Texas)
Pratt through truss bridge over South Fork Leon River on RoadOpen to authorized vehicles only
Mahalasville Road Bridge (Morgan County, Indiana)
Built ca. 1920 in Morgan County: Larger span moved to Yorktown in Delaware County after smaller span was destroyed by a fallen tree.Relocated pony truss bridge over Buck CreekOpen to pedestrians only
Mahanoy Creek Bridge (Northumberland County, Pennsylvania)
Built 1902 by the King Bridge CompanyThrough truss bridge over Mahanoy Creek on TR 377Closed to all traffic
Mahin Road Bridge (Pettis County, Missouri)
Built ca. 1920Pony truss bridge over Long Branch Muddy Creek on Mahin RoadOpen to traffic
Mahoning Creek Bridge (Indiana County, Pennsylvania)
Built 1900 by Nelson & BuchananPony truss bridge over Mahoning Creek on PA 4026Demolished and replaced.
Main Avenue Bridge (Wayne County, Pennsylvania)
Lost Pratt through truss bridge over Lackawaxen River on Main Ave.No longer exists
Main Avenue Bridge (1860) (Cuyahoga County, Ohio)
Built 1860; Replaced 1940Lost Through truss bridge over Cuyahoga River on Main Avenue/Route 2Replaced by a new bridge
Main Channel Bridge (Sanders County, Montana)
Built 1911Pratt deck truss bridge over Clark Fork on Pedestrian TrafficOpen to traffic
Main Street Bridge (Keweenaw County, Michigan)
Built 1909 by the Joliet Bridge and Iron Co.Pony truss bridge over Eagle River on West Main in Eagle RiverOpen to pedestrians
Main Street Bridge (Crawford County, Pennsylvania)
Built 1937; rehabilitated 1980Pratt through truss bridge over French Creek on US 6/US 19Open to traffic
Main Street Bridge (Warren County, Indiana)
Built 1886, replaced in 1924Lost Through truss bridge over Wabash River on Main Street at AtticaReplaced by a new bridge with spans being relocated to various locations in Fountain County.
Main Street Bridge (Clay County, Iowa)
(Main design: Pennsylvania through truss)Built 1889, span added 1901, Replaced 1915Lost Pennsylvania through truss bridge over Little Sioux River on Main Street (Now Renamed)Replaced by a new bridge
Main Street Bridge (Wright County, Iowa)
Replaced 1977Lost Pratt through truss bridge over Iowa River on Main StreetReplaced by a new bridge
Main Street Bridge (Monroe County, Indiana)
Built 1917Lost Pratt pony truss bridge over Jack's Defeat CreekReplaced by a new bridge
Main Street Bridge (Sioux County, Iowa)
Lost Pratt through truss bridge over Rock River on Main StreetReplaced at some point with a concrete slab.
Main Street Bridge (Mercer County, Pennsylvania)
Lost Pratt through truss bridge over Wolf Creek on Main St.Replaced by a new bridge
Main Street Bridge (Fremont County, Iowa)
Built ?; Filled in 1908Lost Pratt through truss bridge over Willow Creek on Main StreetFilled in
Main Street Bridge (Hancock County, Ohio)
Built 1873; Replaced 1934Lost Pratt through truss bridge over Blanchard River on Main StreetReplaced by a new bridge
Main Street Bridge (Petroleum County, Montana)
Built 1940Pony truss bridge over McDonald Creek on Main Street in WinnettOpen to traffic
Main Street Bridge (Erie County, New York)
Built 1889; Replaced ?Lost Pratt through truss bridge over Cattaraugus Creek on Main StreetReplaced by a new bridge
Main Street Bridge (Ocean County, New Jersey)
Lost Pratt pony truss bridge over Toms Riiver? on Main StreetNo longer exists
Main Street Bridge (Chautauqua County, New York)
(Main design: Bowstring through truss)Lost Bowstring through truss bridge over Chautauqua Creek on Main StreetNo longer exists
Main Street Bridge (Morris County, New Jersey)
Lost Pratt pony truss bridge over Pequannock on Main St.No longer exists
Main Street Bridge (1887) (Danville, Virginia)
Built 1887Lost Pratt through truss bridge over Dan River on Main StreetDestroyed by fire and replaced by a new bridge in 1927
Main Street Bridge (Olcott Beach) (Niagara County, New York)
Built 1878; Replaced 1971Lost Pratt through truss bridge over 18 Mile Creek on Main StreetReplaced by a new bridge
Main Street Bridge (Old Truss Bridge) (Franklin County, Ohio)
(Main design: Whipple through truss)Lost Whipple through truss bridge over Scioto River on Main StreetReplaced by a new bridge
Main Street Bridge (Old) (Floyd County, Iowa)
Built ca 1892, Pushed into river during ice jam & relocated downstream 1909Lost Pratt through truss bridge over Cedar River on Main StreetDestroyed by collision
Main Street Bridge (Old) (Cherokee County, Iowa)
Lost Pratt through truss bridge over Little Sioux River on Main StreetDestroyed by flooding
Main Street Bridge (Old) (Winnebago County, Wisconsin)
Removed 1966Lost Pratt through truss bridge over Fox River on Main Street / Electric Interurban Cars WI 45Replaced by a new bridge
Main Street Bridge (Old) (Emery County, Utah)
Built ca. 1926; Replaced 1976Lost Pratt through truss bridge over Cottonwood Creek on Main StreetReplaced by new bridge
Main Street Bridge (Older) (Buchanan County, Iowa)
Build 1892, Replaced 1917Pratt through truss bridge over Wapsipinicon River on 1st Street/Main StreetReplaced by a new bridge
Main Street Bridge (Older) (Delaware County, Iowa)
Lost Pratt through truss bridge over Maquoketa River on Main StreetReplaced by a new bridge
Main Street Bridge (Older) (Franklin County, Kansas)
Built 1885; Destroyed 1926Lost Pratt through truss bridge over Marais des Cygnes River on Main StreetDestroyed by flooding
Main Street Bridge (Older) (Jones County, Iowa)
Lost Pratt pony truss bridge over Little Bear Creek on Main StreetReplaced by a new bridge
Main Street Bridge (Oldest) (Lyon County, Iowa)
Built 1900; Replaced 1922Lost Pratt through truss bridge over Rock River on Main StreetReplaced by a new bridge
Main Street Califon Bridge (Hunterdon County, New Jersey)
Built 1887; altered 1985; rehabilitated 1987Pratt through truss bridge over South Branch Raritan River on County Route 512Open to traffic
Main Street Overpass (Ripley County, Indiana)
Built 1906Lost Pratt through truss bridge over Penn-Central Railroad on Main Street (SR 229)Road level crossing built on a new alignment and old bridge removed.
Main Street Triple Bridge (Cerro Gordo County, Iowa)
Built 1897; Replaced ca. 1908Lost Pratt through truss bridge over Willow Creek on Main Street and Mason City & Clear Lake RailwayReplaced by a new bridge
Main Street Viaduct (Stark County, Ohio)
Built 1906 replacing a bridge built in 1894; Replaced 1976Lost Pratt through truss bridge over Penn Central RR on Main StreetReplaced by a new bridge
Majestic Collieries Bridge (Mingo County, West Virginia)
This served the infamous Majestic Colleries Company, which operated from 1914-1958, and the tipple there once had the distinction of being featured on the cover of Life magazine.Abandoned truss bridge over Cedar Creek on Old Norfolk & Western LineAbandoned
Major Road Bridge (Howard County, Iowa)
Built 1925Pony truss bridge over Beaver Creek on Major RoadClosed to all traffic with the north approach removed and the entrance barricaded with a man-made mound
Mallory Township Bridge (Clayton County, Iowa)
Built ca. 1890Pratt pony truss bridge over unnamed stream on Kale AvenueReplaced by a new bridge
Malvern Mill Bridge (Whiteside County, Illinois)
Built ca. 1890Pratt pony truss bridge over Rock Creek on Pedestrian PathwayOpen to pedestrians only
Mammoth Spring Bridge (Fulton County, Arkansas)
Lost six-span pony truss bridge over Spring Lake (the outlet of Mammoth Spring)Demolished in the 1960s
Manard Bayou Bridge (Muskogee County, Oklahoma)
Built ca. 1930Pratt through truss bridge over Manard Bayou on Donkey Lane south of Fort GibsonBypassed by a new bridge but left in place
Manasquan River Bridge (Monmouth County, New Jersey)
Built 1899; rehabilitated 1991Pratt through truss bridge over Manasquan River on Preventorium RoadOpen to traffic
Manayunk Canal Bridge (Philadelphia County, Pennsylvania)
Abandoned Pratt Pony Truss Pedestrian Bridge over Manayunk CanalAbandoned, possibly demolished--see comments
Manchester Street Bridge (Merrimack County, New Hampshire)
Built 1933; replaced 1998Lost Pratt through truss bridge over Merrimack River on Manchester StreetReplaced by new bridge
Mancos River Bridge (Montezuma County, Colorado)
Pratt pony truss bridge over Mancos River on a drivewayOpen to traffic
Manitowoc Rapids Truss Bridge (Manitowoc County, Wisconsin)
Built 1887 by Wisconsin Bridge & Iron Co.Through truss bridge over Manitowoc River on foot/bicycle trailOpen to pedestrians
Manley Creek Bridge (Marshall County, Kansas)
Built ca. 1910Pony truss bridge over Manley Creek, 3.0 mi. south and 3.5 mi. east of SummerfieldOpen to traffic
Manning Street - North Fork Licking River Bridge (Licking County, Ohio)
Damaged by flooding in January 1959; repaired & reopened; replaced in 1962Lost Pratt through truss bridge over North Fork Licking River on Manning StreetReplaced by a new bridge
Mannsville Bridge (Johnston County, Oklahoma)
(Main design: Parker through truss)Built 1909; Lost to Flooding 2015Lost through truss bridge over Washita River on FAS 3501Destroyed by flood on 6-18-2015
Mansfield Cemetery Bridge (Piatt County, Illinois)
Built 1897; replaced 1979Lost Pratt through truss bridge over Madden Creek on TR 150 (CR 1300 E)Replaced by new bridge
Manton Road Bridge (Tehama County, California)
Built 1935Pratt Pony truss bridge over Digger Creek on Manton Road in MantonOpen to traffic
Mantua Creek Bridge (Gloucester County, New Jersey)
Lost Pratt pony truss bridge over Mantua Creek on 44?No longer exists
Manville Bridge (Jefferson County, Indiana)
Built ca. 1890'sLost Pratt through truss bridge over Indian-Kentuck Creek on China-Manville RoadReplaced by a new bridge
Maple Hill Bridge (Shawnee County, Kansas)
(Main design: Parker through truss)Built ca. 1890's; replaced in 1975Lost Parker through truss bridge over Kansas River on Maple Hill RoadReplaced by a new bridge
Maple Mill Bridge (Washington County, Iowa)
Built 1896Lost through truss bridge over English River on Fir AvenueDestroyed by flooding as of 3/10/2016
Maple River Bridge (Woodbury County, Iowa)
Lost Pratt through truss bridge over Maple River on RoadReplaced by a new bridge
Maple Road Bridge (Minnehaha County, South Dakota)
Through truss bridge over Big Sioux River on former Maple Road in Sioux FallsOpen to pedestrians only
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