There are 8,008 bridges in this category · Only showing 5,935 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.


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 Bridge
Open to railroad traffic only

Machia Road Bridge (Franklin County, Vermont)
Built 1928
2 span Pratt through truss bridge over Missisquoi River on C3006 in Highgate
Open to traffic

Mackelroy Creek Bridge (Richardson County, Nebraska)
Built 1904
Pony truss bridge over Mackelroy Creek on 37th Street
Closed to all traffic

Mackinaw River Dillon Rd Bridge (Tazewell County, Illinois)
Through truss bridge over Mackinaw River on Dillon Rd NE of Green Valley
Closed to all traffic

Mackinaw River Levy Road Bridge (Tazewell County, Illinois)
(Main design: Pratt through truss)
Built 1907
Pratt through truss bridge over Mackinaw River on Levy Road northwest of Hopedale
Closed to all traffic

Mackinaw River Schmidgall Rd Bridge (Tazewell County, Illinois)
(Main design: Pratt through truss)
Through truss bridge over Mackinaw River on Schmidgall Rd E of Mackinaw
Bridge looks intact and used, but road closed to public traffic.

Mackville Road Bridge (Lincoln County, Missouri)
Built 1936; replaced 2004
Lost through truss over North Fork Cuivre River on Mackville Road just beyond the end of Route K at Briscoe
Replaced by modern bridge

Macon Bridge (Macon County, Missouri)
Lost through truss bridge on a city street in Macon
No longer exists

Macoupin Creek Bridge (Macoupin County, Illinois)
Pony truss bridge over Macoupin Creek on Lake Catatoga Road south of Macoupin
Closed

Macoupin Creek Bridge - Coops Mound Rd (Macoupin County, Illinois)
Pony truss bridge over Macoupin Creek on Coops Mound Rd, 2 mi. south of Standard City
Intact but closed to all traffic

Maddox Creek CR 115 Bridge (Van Wert County, Ohio)
Built 1900
Pony 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 alignment
Abandoned pratt pony truss bridge over Coahulla Creek on old alignment of Chatsworth Highway / SR 52
Abandoned on private property

Madison Ave. White River Bridge (Madison County, Indiana)
(Main design: Baltimore through truss)
Lost through truss bridge over White River on Madison Ave. in Anderson
Replaced by new bridge

Madison Railroad - Big Creek Bridge (Jefferson County, Indiana)
Pratt deck truss bridge over Big Creek on Madison Railroad
Replaced by a new bridge

Madison Railroad - Graham Creek Bridge (Jennings County, Indiana)
Pratt deck truss bridge over Graham Creek on Madison Railroad
Open to traffic

Madison Railroad - Vernon Fork Muscatatuck River Bridge (Jennings County, Indiana)
Built ca.1890's
Pratt deck truss bridge over Vernon Fork Muscatatuck River in Vernon
Open to traffic

Madison-Milton Bridge (Jefferson County, Indiana)
(Main design: Warren through truss)
Built 1928-29; rehabilitated 1997, imploded August 2013
Cantilevered through truss bridge over Ohio River on US 421 between Madison, IN, and Milton, KY
All main spans demolished.

Madisonville Bridge (Ralls County, Missouri)
Built 1893 by St. Louis Bridge & Iron Co.; relocated to a nearby field in 2005
Through 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 location
Relocated to a nearby field after being purchases by a local couple. Replaced by new bridge

Magnolia Garden Bridge (Orleans Parish, Louisiana)
Built in 1800s; moved to present location in 1909; restored for pedestrian use in 1989
Pratt through truss bridge over Bayou St. John at Harding Drive
Open to pedestrians

Magnum Through Truss (Eastland County, Texas)
Pratt through truss bridge over South Fork Leon River on Road
Open 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 Creek
Open to pedestrians only

Mahanoy Creek Bridge (Northumberland County, Pennsylvania)
Built 1902 by the King Bridge Company
Through truss bridge over Mahanoy Creek on TR 377
Closed to all traffic

Mahin Road Bridge (Pettis County, Missouri)
Built ca. 1920
Pony truss bridge over Long Branch Muddy Creek on Mahin Road
Open to traffic

Mahoning Creek Bridge (Indiana County, Pennsylvania)
Built 1900 by Nelson & Buchanan
Pony truss bridge over Mahoning Creek on PA 4026
Demolished and replaced.

Main Avenue Bridge (Old) (Cuyahoga County, Ohio)
Built 1860
Lost Through truss bridge over Cuyahoga River on Route 2 Main Avenue
Replaced by a new bridge

Main Channel Bridge (Sanders County, Montana)
Built 1911
Pratt deck truss bridge over Clark Fork on Pedestrian Traffic
Open 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 River
Open to pedestrians

Main Street Bridge (Crawford County, Pennsylvania)
Built 1937; rehabilitated 1980
Pratt through truss bridge over French Creek on US 6/US 19
Open to traffic

Main Street Bridge (Warren County, Indiana)
Built 1886, replaced in 1924
Lost Through truss bridge over Wabash River on Main Street at Attica
Replaced 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 1915
Lost 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 1977
Lost Pratt through truss bridge over Iowa River on Main Street
Replaced by a new bridge

Main Street Bridge (Tippecanoe County, Indiana)
Built 1890, Additional trusses for the Fort Wayne & Wabash Valley Traction Co. added in 1895.; Lost 1913
Lost Pratt through truss bridge over Wabash River on Main Street and Fort Wayne & Wabash Valley Traction Co.
Destroyed by flooding

Main Street Bridge (Monroe County, Indiana)
Built 1917
Lost Pratt pony truss bridge over Jack's Defeat Creek
Replaced by a new bridge

Main Street Bridge (Sioux County, Iowa)
Lost Pratt through truss bridge over Rock River on Main Street
Replaced 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 (Niagara County, New York)
Built ca. 1897; Replaced 1971
Lost Pratt through truss bridge over 18 Mile Creek on Main Street
Replaced by a new bridge

Main Street Bridge (Fremont County, Iowa)
Built ?; Filled in 1908
Lost Pratt through truss bridge over Willow Creek on Main Street
Filled in

Main Street Bridge (Hancock County, Ohio)
Lost Pratt through truss bridge over Blnchard River on Main Street
Replaced by a new bridge

Main Street Bridge (Petroleum County, Montana)
Built 1940
Pony truss bridge over McDonald Creek on Main Street in Winnett
Open to traffic

Main Street Bridge (Erie County, New York)
Built 1889; Replaced ?
Lost Pratt through truss bridge over Cattaraugus Creek on Main Street
Replaced by a new bridge

Main Street Bridge (Old) (Linn County, Iowa)
Built ca.1880 by the Wrought Iron Bridge Company, Replaced 1957
Lost Bridge over Wapsipinicon River on Main Street
Replaced by a new bridge

Main Street Bridge (Old) (Floyd County, Iowa)
Built ca 1892, lost to an ice jam 1909
Lost Pratt through truss bridge over Cedar River on Main Street
Destroyed by collision

Main Street Bridge (Old) (Cherokee County, Iowa)
Lost Pratt through truss bridge over Little Sioux River on Main Street
Destroyed by flooding

Main Street Bridge (Old) (Winnebago County, Wisconsin)
Removed 1966
Lost Pratt through truss bridge over Fox River on Main Street / Electric Interurban Cars WI 45
Replaced by a new bridge

Main Street Bridge (Old) (Linn County, Iowa)
Replaced 1956
Lost Pratt through truss bridge over East Big Creek on Main Street (Broadway Street)
Replaced by a new bridge

Main Street Bridge (Older) (Buchanan County, Iowa)
Build 1892, Replaced 1917
Pratt through truss bridge over Wapsipinicon River on 1st Street/Main Street
Replaced by a new bridge

Main Street Bridge (Older) (Delaware County, Iowa)
Lost Pratt through truss bridge over Maquoketa River on Main Street
Replaced by a new bridge

Main Street Bridge (Older) (Franklin County, Kansas)
Built 1885; Destroyed 1926
Lost Pratt through truss bridge over Marais des Cygnes River on Main Street
Destroyed by flooding

Main Street Bridge (Older) (Jones County, Iowa)
Lost Pratt pony truss bridge over Little Bear Creek on Main Street
Replaced by a new bridge

Main Street Bridge (Oldest) (Lyon County, Iowa)
Built 1900; Replaced 1922
Lost Pratt through truss bridge over Rock River on Main Street
Replaced by a new bridge

Main Street Califon Bridge (Hunterdon County, New Jersey)
Built 1887; altered 1985; rehabilitated 1987
Pratt through truss bridge over South Branch Raritan River on County Route 512
Open to traffic

Main Street Swing Bridge (Niagara County, New York)
Built 1877, Replaced ca. 1897
Lost Pratt pony truss bridge over 18 Mile Creek on Main Street
No longer exists

Main Street Triple Bridge (Cerro Gordo County, Iowa)
Built 1897; Replaced ca. 1908
Lost Pratt through truss bridge over Willow Creek on Main Street and Mason City & Clear Lake Railway
Replaced by a new bridge

Main Street- St. Regis River Bridge (Old) (Franklin County, New York)
Lost 1929
Lost Pratt Pony truss bridge over St Regis River on Main Street
Replaced 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 Line
Abandoned

Major Road Bridge (Howard County, Iowa)
Built 1925
Pony truss bridge over Beaver Creek on Major Road
Closed to all traffic with the north approach removed and the entrance barricaded with a man-made mound

Malvern Mill Bridge (Whiteside County, Illinois)
Built ca. 1890
Pratt pony truss bridge over Rock Creek on Pedestrian Pathway
Open 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. 1930
Pratt through truss bridge over Manard Bayou on Donkey Lane south of Fort Gibson
Bypassed by a new bridge but left in place

Manayunk Canal Bridge (Philadelphia County, Pennsylvania)
Abandoned Pratt Pony Truss Pedestrian Bridge over Manayunk Canal
Abandoned, possibly demolished--see comments

Manchester Street Bridge (Merrimack County, New Hampshire)
Built 1933; replaced 1998
Lost Pratt through truss bridge over Merrimack River on Manchester Street
Replaced by new bridge

Manitowoc Rapids Truss Bridge (Manitowoc County, Wisconsin)
Built 1887 by Wisconsin Bridge & Iron Co.
Through truss bridge over Manitowoc River on Foot / bicycle trail
Open to pedestrians

Mannsville Bridge (Johnston County, Oklahoma)
(Main design: Parker through truss)
Built 1909; Lost to Flooding 2015
Lost through truss bridge over Washita River on FAS 3501
Destroyed by flood on 6-18-2015

Mansfield Cemetery Bridge (Piatt County, Illinois)
Built 1897; replaced 1979
Lost Pratt through truss bridge over Madden Creek on TR 150 (CR 1300 E)
Replaced by new bridge

Manton Road Bridge (Tehama County, California)
Built 1935
Pratt Pony truss bridge over Digger Creek on Manton Road in Manton
Open to traffic

Maple Highlands Trail Covered Bridge 35-28-04 (Geauga County, Ohio)
Built 2013
Pratt through truss bridge over East Branch of Cuyahoga River on Maple Highlands Rail-Trail


Maple Mill Bridge (Washington County, Iowa)
Built 1896
Lost through truss bridge over English River on Fir Avenue
Destroyed by flooding as of 3/10/2016

Maple River Bridge (Woodbury County, Iowa)
Lost Pratt through truss bridge over Maple River on Road
Replaced by a new bridge

Maple Road Bridge (Minnehaha County, South Dakota)
Through truss bridge over Big Sioux River on former Maple Road in Sioux Falls
Open to pedestrians only

Maple Street Bridge (Hampden County, Massachusetts)
Built c. 1900; rehabilitated 2010
Pratt through truss bridge over Westfield River on Maple Street
Open to traffic

Maple Street Bridge (Older) (Manistee County, Michigan)
Built 1873, replaced 1908
Lost Pratt through truss bridge over Manistee River on Maple Street
Replaced 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 Street
Replaced by a new bridge

Maquoketa River Bridge (Dubuque County, Iowa)
Built 1904
Through truss bridge over Maquoketa River on Bockenstedt Road
Open to traffic

Marantette Bridge (St. Joseph County, Michigan)
Built in the late 1800s
Pratt through truss bridge over St. Joseph River on S. Railroad Street
Closed to all traffic

Marble Branch Bridge (Switzerland County, Indiana)
Built in 1897 by the Brackett Bridge Company; replaced 1999
Lost pony truss bridge over Marble Branch of Grants Creek on Grants Creek Road
Replaced by new bridge

Marco Bridge (Greene County, Indiana)
Built ca. 1930; rehabilitated 1973; replaced 1994
Lost through truss bridge over Black Creek on IN 67
Replaced by new bridge

Margerum Road Bridge (Colbert County, Alabama)
Abandoned pratt through truss bridge over Buzzard Roost Creek on Margerum Rd
Abandoned

Margiotti Bridge (Jefferson County, Pennsylvania)
Built 1937; rehabilitated 1977/1984
Deck truss bridge over Mahoning Creek on PA 436 in Punxsutawney
Open to traffic

Marietta Pike Overpass (Lancaster County, Pennsylvania)
Built 1896; rehabilitated 1960
Pony truss bridge over Amtrak on PA 772 in Mount Joy
Open to traffic

Mariposa Bridge (Lincoln County, North Carolina)
Built 1912 by the Owego Bridge Co.; bypassed 1984
Through truss bridge over Leepers Creek on NC 1412
Bypassed by new bridge and preserved in place

Mark Road Bridge (Fayette County, Ohio)
Built 1883 by the Wrought Iron Bridge Co.; reconstructed 2007
Through truss bridge over Sugar Creek on Mark Road
Open to traffic

Market Street Bridge (Clearfield County, Pennsylvania)
Built 1938; rehabilitated 1994
Through truss bridge over West Branch Susquehanna River on PA 1004 in Clearfield
Open to traffic

Market Street Bridge (Wapello County, Iowa)
Built 1892; Replaced 1971
Lost Pratt through truss bridge over Des Moines River on Market Street
Replaced by a new bridge

Market Street Bridge (5th) (Lycoming County, Pennsylvania)
Built 1894; Demolished 1949
Lost Pratt through truss bridge over West Branch Susquehanna River on Market Street & Interurban
Replaced by a new bridge

Market Street Walkway Bridge (Roanoke, Virginia)
Pratt through truss Bridge over NSRR on pedestrian path
Open to pedestrians only

Marlowe Creek Bridge (Worth County, Missouri)
Built 1885, Relocated Here in 1898; converted to vehicular use ca. 1981; rehabilitated 1996
Pratt Through truss bridge over Marlowe Creek on CR 287
Open 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 Marquand
Replaced by concrete span; portion of old bridge now rests in Marquand City Park

Marseilles Iron Bridge (LaSalle County, Illinois)
Built 1885; Replaced 1933
Lost Pratt through truss bridge over Illinois River
Replaced by a new bridge

Marsh Creek Bridge (Centre County, Pennsylvania)
Built ca. 1900
Pony truss bridge over Marsh Creek on TR 471 in Blanchard
Closed to all traffic

Marsh Road Bridge (Crawford County, Pennsylvania)
Built 1890 by Penn Bridge Co.
Pony truss bridge over Conneaut Outlet on TR 574
Open to traffic

Marshall Street Viaduct (Richmond, Virginia)
Built 1911; Rehabilitated 1933-34; Trolley service ends 1953; Removed 1973
Lost Pratt deck truss bridge over Shockoe Creek, Southern Railway, & Seaboard Coast Line Railroad on Marshall Street
Removed

Martin Bridge (Lake County, Colorado)
Pony truss on a bike trail east of Leadville crossing CR 3
Open to two-lane bike traffic above and road traffic below

Martin Road Bridge (Shiawassee County, Michigan)
Built 1885 by the Mt. Vernon Bridge Co.
Through truss bridge over Shiawassee River on Martin Road
Closed to all traffic

Martin Road Bridge (Hendricks County, Indiana)
Built in 1895 by the Pittsburgh Bridge Company; replaced in 1988
Lost Pratt through truss bridge over West Fork White Lick Creek on Martin Road
Replaced by new bridge

Martin Vill Road Bridge (Henry County, Missouri)
Built 1927; rehabilitated 1965
Pony truss bridge over South Grand River on Martin Vill Road
Closed to all traffic

Martindale Bridge (Greene County, Indiana)
Built 1905
Pony truss bridge over Four Mile Creek on CR 600 West
Open to traffic

Martindale Creek CR 950S Bridge (Randolph County, Indiana)
Built ca. 1895
Lost Half-hip Pratt pony truss bridge over Martindale Creek on County Road 950 South
Replaced by a new bridge

Martinton Ditch Bridge (Iroquois County, Illinois)
Built 1955
Pony truss bridge over Martinton Ditch No. 3 on TR 320
Open to traffic

Maryland Street Bridge (Pike County, Missouri)
Built ca. 1920
Pony truss bridge over Town Branch on Maryland Street in Louisiana
Open to one-lane traffic with an 8 ton weight limit

Masemore Road Bridge (Baltimore County, Maryland)
Built 1898; rehabilitated 2000
Through truss bridge over Gunpowder Falls on Masemore Road
Open to traffic