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.
Maple Street Bridge (Hampden County, Massachusetts)
Built c. 1900; rehabilitated 2010Pratt through truss bridge over Westfield River on Maple Street in ChesterOpen to traffic
Maple Street Bridge (Clinton County, Michigan)
Lost Pratt through truss bridge over Maple River on Maple StreetReplaced by a new bridge
Maquoketa River Bridge (Delaware County, Iowa)
(Main design: Pratt through truss)Lost Pratt through truss bridge over Maquoketa River on Marion StreetReplaced by a new bridge
Maquoketa River Bridge (Dubuque County, Iowa)
Built 1904Through truss bridge over Maquoketa River on Bockenstedt RoadReplaced by a new bridge
Marantette Bridge (St. Joseph County, Michigan)
Built in the late 1800sPratt through truss bridge over St. Joseph River on S. Railroad StreetClosed to all traffic
Marble Branch Bridge (Switzerland County, Indiana)
Built in 1897 by the Brackett Bridge Company; replaced 1999Lost pony truss bridge over Marble Branch of Grants Creek on Grants Creek RoadReplaced by new bridge
Marco Bridge (Greene County, Indiana)
Built ca. 1930; rehabilitated 1973; replaced 1994Lost through truss bridge over Black Creek on IN 67Replaced by new bridge
Margerum Road Bridge (Colbert County, Alabama)
Abandoned pratt through truss bridge over Buzzard Roost Creek on Margerum RdAbandoned
Margiotti Bridge (Jefferson County, Pennsylvania)
Built 1937; rehabilitated 1977/1984Deck truss bridge over Mahoning Creek on PA 436 in PunxsutawneyReplaced by a new bridge
Mariposa Bridge (Lincoln County, North Carolina)
Built 1912 by the Owego Bridge Co.; bypassed 1984Through truss bridge over Leepers Creek on NC 1412Bypassed by new bridge and preserved in place
Mark Road Bridge (Fayette County, Ohio)
Built 1883 by the Wrought Iron Bridge Co.; reconstructed 2007Through truss bridge over Sugar Creek on Mark RoadOpen to traffic
Market Street Bridge (Clearfield County, Pennsylvania)
Built 1938; rehabilitated 1994Through truss bridge over West Branch Susquehanna River on PA 1004 in ClearfieldOpen to traffic
Market Street Bridge (Wapello County, Iowa)
Built 1892; Replaced 1971Lost Pratt through truss bridge over Des Moines River on Market StreetReplaced by a new bridge
Market Street Bridge (5th) (Lycoming County, Pennsylvania)
Built 1894; Demolished 1949Lost Pratt through truss bridge over West Branch Susquehanna River on Market Street & InterurbanReplaced by a new bridge
Marks Branch Bridge (Mercer County, Missouri)
Built ca. 1895Through truss bridge over Marks Branch on Bedrock RdDerelict/abandoned
Marlowe Creek Bridge (Worth County, Missouri)
Built 1885, Relocated Here in 1898; converted to vehicular use ca. 1981; rehabilitated 1996Pratt Through truss bridge over Marlowe Creek on CR 287Open to traffic single lane only
Marquand Bridge (Madison County, Missouri)
Old bridge built 1924 at a cost of
about $4,000, raised by the community. Replaced 1993.Lost through truss bridge over Castor River on Route A at MarquandReplaced by concrete span; portion of old bridge now rests
in Marquand City Park
Marrowbone Creek CR 198 Bridge (Daviess County, Missouri)
Built ca. 1910 by the Dildine Bridge Co.Bedstead pony truss bridge over Marrowbone Creek on 190th Street (CR 198)Open to traffic.
Marseilles Iron Bridge (LaSalle County, Illinois)
Built 1885; Replaced 1933Lost Pratt through truss bridge over Illinois RiverReplaced by a new bridge
Marsh Creek Bridge (Centre County, Pennsylvania)
Built ca. 1900Pony truss bridge over Marsh Creek on TR 471 in BlanchardClosed to all traffic
Marsh Road Bridge (Crawford County, Pennsylvania)
Built 1890 by Penn Bridge Co.Pony truss bridge over Conneaut Outlet on TR 574Open to traffic
Martin Bridge (Lake County, Colorado)
Pony truss on a bike trail east of Leadville crossing CR 3Open to two-lane bike traffic above and road traffic below
Martin Road Bridge (Shiawassee County, Michigan)
Built 1885 by the Mt. Vernon Bridge Co.; closed 1987; disassembled in 2016, intended for re-use in DelawareThrough truss bridge over Shiawassee River on Martin RoadIn storage or disassembled
Martin Road Bridge (Hendricks County, Indiana)
Built in 1895 by the Pittsburgh Bridge Company; replaced in 1988Lost Pratt through truss bridge over West Fork White Lick Creek on Martin RoadReplaced by new bridge
Martin Vill Road Bridge (Henry County, Missouri)
Built 1927; rehabilitated 1965Pony truss bridge over South Grand River on Martin Vill RoadClosed to all traffic
Martindale Bridge (Greene County, Indiana)
Built 1905Pony truss bridge over Four Mile Creek on CR 600 WestOpen to traffic
Martindale Creek CR 950S Bridge (Randolph County, Indiana)
Built ca. 1895Lost Half-hip Pratt pony truss bridge over Martindale Creek on County Road 950 SouthReplaced by a new bridge
Martinton Ditch Bridge (Iroquois County, Illinois)
Built 1955Pony truss bridge over Martinton Ditch No. 3 on CR2400 E RdOpen to traffic
Maryland Street Bridge (Pike County, Missouri)
Built ca. 1920Pony truss bridge over Town Branch on Maryland Street in LouisianaOpen to one-lane traffic with an 8 ton weight limit
Maryland Street Bridge (1903) (Vanderburgh County, Indiana)
Built 1903; Replaced 1984Lost Pratt through truss bridge over Pigeon Creek on Maryland StreetReplaced by new bridge
Maryland Street Bridge (ca. 1880) (Vanderburgh County, Indiana)
Built ca. 1880; Replaced 1910Lost Pratt through truss bridge over Pigeon Creek on Maryland StreetReplaced by new bridge
Masemore Road Bridge (Baltimore County, Maryland)
Built 1898; rehabilitated 2000Through truss bridge over Gunpowder Falls on Masemore RoadOpen to traffic
Mason Road - Thornapple River Bridge (Eaton County, Michigan)
Unknown build year, closed ca. 1953-56, possibly not replaced until 1989?Lost Pratt pony truss bridge over Thornapple River on Mason RoadReplaced by a new bridge
Mason Road Bridge (Gratiot County, Michigan)
Built 1904; Relocated and replaced 1995Pratt pony truss bridge relocated from Bad River on Mason Road in IthacaRelocated and replaced by new bridge
Masonic Park Bridge (Rio Grande County, Colorado)
Built 1909 by the Pueblo Bridge Co.; relocated 1933; replaced 1994Lost through truss bridge over the Rio Grande on Masonic Park DriveReplaced by new bridge
Massengill Bridge (Anderson County, Tennessee)
(Main design: Parker through truss)Built 1916Lost Parker through truss bridge over Clinch River on Coal Creek Road (Lovely Bluff Road)Replaced by new bridge
Massillon Mystery Bridge (Hancock County, Indiana)
Built ca. 1890'sLost Pratt through truss bridge over Unknown creek on RoadNo longer exists
Masterson Bridge (Marion County, Missouri)
Built 1898 by the Kansas City Bridge Co.Pratt through truss bridge originally over North River on CR 189Replaced by a new bridge and relocated to Shelby County.
Masterson Bridge (Shelby County, Missouri)
Originally built in 1898, this bridge was relocated here in September of 2013Pratt through truss bridge on Steam Engine TracksOpen to traffic
Maumee Road Bridge (Jackson County, Indiana)
Built ca. 1920; ReplacedPony truss bridge over Combs Branch on Maumee RoadReplaced by a new bridge
Maumelle River AR 300 Bridge (Pulaski County, Arkansas)
Made obsolete by a new bridge in 1981Through truss bridge over Maumelle River on AR 300Open to pedestrians only
Mauricetown Bridge (Cumberland County, New Jersey)
Built 1888Pratt through truss bridge over Maurice River on Highland StreetPartial remains of bridge open to pedestrians only
MAW - Maumee River Bridge (Defiance County, Ohio)
Built 1893 by the Wabash RailroadPratt through truss bridge over Maumee River on Maumee and Western RailroadOpen to rail traffic
Max Bridge (Furnas County, Nebraska)
Pratt pony truss bridge over Medicine Creek on a pedestrian trailOpen to pedestrians only
Maxwell Bridge (Montgomery County, Indiana)
Built 1913; replaced 2000Lost through truss bridge over Sugar Creek on CR 425 EReplaced by new bridge
Maybert Road Bridge (Nevada County, California)
Built 1895; replaced 2017Pratt Pony truss bridge over Canyon Creek on Maybert RoadIn process of being relocated to Nevada City for pedestrians.
Maynard Bridge (Fayette County, Iowa)
Replaced 1922Lost Pratt through truss bridge over Little Volga River on Main St.Replaced by a new bridge
Maysville Bridge (Scott County, Iowa)
Built 1894; Auctioned off in 1974Pratt pony truss bridge over Mud Creek on Road
Maywood Bridge (Lewis County, Missouri)
Built 1894 by the St. Louis Bridge & Iron Co.; replaced 1999Lost through truss bridge over Middle Fabius River on CR 587Replaced by new bridge
Maze Road - Buck Creek Bridge (Marion County, Indiana)
Lost Pratt through truss bridge over Buck Creek on Maze RoadReplaced by a new bridge in 1970
MC&C - Dunbar Bridge (2nd) (Washington County, Ohio)
Originally built in 1857, Built ?Lost Deck truss bridge over West Fork Little Hocking River on Abandoned railroadRemoved
McCaffrey Bridge (Winneshiek County, Iowa)
Built 1924Two-span through truss bridge over Upper Iowa River on 244th Avenue, east of BlufftonOpen to one-lane traffic
McCain Bridge (Pulaski County, Missouri)
Lost three-span through truss bridge near Richland over Gasconade RiverReplaced by new bridge
McCall Bridge (Stone County, Missouri)
Built 1915 by contractor Fred L. Appleby; replaced 2002Lost through truss bridge over James River on CR V-70Replaced by new bridge and torn down
McCann Road Bridge (Barry County, Michigan)
Built 1892; New Deck 1950's; Replaced 1987Lost Pratt pony truss bridge over Thornapple River on Mc Cann Road in HastingsReplaced by new bridge
McCarty Creek CR 657 Bridge (Vernon County, Missouri)
Built ca. 1895 by the Missouri Valley Bridge & Iron WorksPony truss bridge over McCarty Creek on CR 657 (Tyree Road)Collapsed July 2019
McCarty Creek Road Bridge (Tehama County, California)
Built ca. 1890, may have been relocated here in 1937Pin-connected Pratt Through truss bridge over McCarty Creek on McCarty Creek RoadOpen to traffic
McCauley Road Bridge (Cecil County, Maryland)
Built 1884; rehabilitated 1993Pony truss bridge over Basin Run on McCauley RoadOpen to traffic
McClamrock Ditch CR 750E Bridge (Clinton County, Indiana)
Built ca. 1898 by the Lafayette Bridge CompanyLost Bedstead Pratt pony truss bridge over McClamrock Ditch on County Road 750 EastReplaced by a new bridge
McClintock Bridge (Venango County, Pennsylvania)
Built 1930; rehabilitated 1978Through truss bridge over Oil Creek on PA 8 in Hasson HeightsReplaced by a new bridge
McClure Bridge (Whitman County, Washington)
Built 1908, replaced 1989Lost Pratt through truss bridge over Palouse RiverReplaced by new bridge
McClure Road Bridge (Darke County, Ohio)
Built 1882 by the Massillon Bridge Co.Through truss bridge over Greenville Creek on McClure Road (TR 276)Closed to all traffic
McClure Road Bridge (Putnam County, Indiana)
Built 1915; replaced 1997Lost through truss bridge over Mill Creek on CR 1025 EReplaced by new bridge
McCoy Bridge (Macon County, North Carolina)
Built ca. 1915, truss span possibly relocated here in the 1940s and rehabilitated in 1960.Through truss bridge over Little Tennessee River on NC 1456Open to traffic
McCoy Road Bridge (Putnam County, Indiana)
Built in 1923 by the Vincennes Bridge Co.Through truss bridge over Clear Creek on CR 375 EastOpen to traffic
McCraney Creek Bridge (Adams County, Illinois)
Built 1916Through truss bridge over McCraney Creek on TR 350AOpen to traffic
McCutcheon Road Bridge (Jefferson County, Pennsylvania)
Built 1905; rehabilitated 1995; replaced 2009Lost pony truss bridge over Mill Creek on McCutcheon RoadReplaced by a new bridge
McDermott Road Bridge (Franklin County, New York)
(Main design: Lane pony truss)Re-located here from an unknown location.Bridge over Salmon River on McDermott RoadAbandoned and derelict.
McDonough Street Bridge (Old) (Will County, Illinois)
Built 1911;Lost Pratt through truss bridge over Des Plaines River on McDonough Street & CO&P RailroadReplaced by a new bridge
McFadden Creek-Bluff Rd. Bridge (Posey County, Indiana)
(Main design: Pratt through truss)Built 1895; removed 1997Lost through truss bridge over McFadden Creek on Bluff RoadOnly the substructure remains
McGill Creek CR 627 Bridge (Carroll County, Missouri)
Built 1904 by the Interstate Bridge Co.Pony truss bridge over McGill Creek on CR 627Open to traffic
McKee Creek Bridge (Adams County, Illinois)
Built 1933Pony truss bridge over McKee Creek on TR 367Open to traffic
McKee Creek Bridge (Pike County, Illinois)
Built ca. 1920; rehabilitated 1930Pony truss bridge over McKee Creek on TR 47, 1.25 mi. east of PerryBypassed but left in place
McKeown Bridge (Old) (Muscatine County, Iowa)
Built 1879; Replaced 1951Lost Pratt through truss bridge over Cedar River on Lord's Ferry RoadReplaced by a new bridge
McKeown Road Bridge (Barry County, Michigan)
Built 1903Pratt through truss bridge over Thornapple River on Old alignment McKeown RoadOpen to pedestrians
McKillip Ditch Bridge (White County, Indiana)
Unknown, but likely built on a county road and later acquired for private use.Abandoned pratt pony truss bridge over McKillip Ditch on Field crossingAbandoned with mostly intact but dilapidated deck
McKinney Creek Bridge (Polk County, Arkansas)
Built 1915 ; closed circa 2010Pony truss bridge over McKinney Creek on CR 50Closed to all traffic
McLean Branch MO 79 Bridge (Lincoln County, Missouri)
Built 1938Through truss bridge over McLean Branch on MO 79 at WinfieldReplaced by a new bridge
McPherson Bridge (Shoshone County, Idaho)
Built 1934Pratt through truss bridge over Coeur d'Alene River on FR 412Closed
McPherson Bridge (Bradley County, Tennessee)
Lost Pratt pony truss bridge over Candies Creek on A165 McPherson RoadReplaced by a new bridge
McPherson's Ford Bridge (Alleghany County, Virginia)
Built 1896; Rehabilitated in 1948, bypassed and preserved 2013Through truss bridge over Cowpasture River on Route 633 (McKinney Hollow Rd)Open to pedestrians only
McPhillips Road Bridge (Harrison County, Indiana)
Built ca. 1900Lost Pratt pony truss bridge over Middle Fork of Buck Creek on McPhillips RoadReplaced by a new bridge
ME/Amtrak Overpass (Union County, New Jersey)
Built originally by Staten Island Rapiod Transit (Baltimore & Ohio subsidiary)Through truss bridge over Amtrak on Morristown & Erie RailwayOpen to traffic
Mead Road Bridge (Clinton County, Michigan)
Built 1907Through truss bridge over Maple River on Mead RoadDerelict/abandoned
Meadow Lane Bridge (Hunterdon County, New Jersey)
Built 1900; rehabilitated 1991Pony truss bridge over North Branch Rockaway Creek on Meadow LaneOpen to traffic
Meadow Road Bridge (Dodge County, Wisconsin)
Built 1890; Replaced 1995Lost Pratt through truss bridge over Beaver Dam River on Meadow Road in Town of LowellReplaced by new bridge
Meadow Road Bridge (Coos County, New Hampshire)
(Main design: Pratt through truss)Built 1897 by the Groton Bridge Co..; Bypassed in 1984; Two center spans removed from river and placed on banks in 2004Pin connected Pratt through truss bridge over Androscoggin River in ShelburneClosed to all traffic
Meadow Run Road Bridge (Fayette County, Pennsylvania)
Built 1904 by York Bridge Co.Pony truss bridge over Meadow Run on Meadow Run RoadOpen to traffic
Meadowland Street Bridge (Minnehaha County, South Dakota)
Pratt through truss bridge over Big Sioux River on Meadowland Street (now private), 5 miles south of BalticClosed to all traffic
Meadowview Drive Bridge (York County, Pennsylvania)
Built 1890. Possibly Rehabilitated/Moved 1930.Pratt pony truss bridge over North Branch Bermudian Creek on PA 4038 (Meadowview Drive)Replaced by a new bridge
Meadowview Drive Bridge (Relocated) (York County, Pennsylvania)
Relocated from Meadowiew Drive, Dillsburg in 2014Pratt pony truss bridge over Fox Run Tributary on Unmarked trailOpen to pedestrians only
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