There are 8,181 bridges in this category · Only showing 6,132 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.

LV - Delaware River Bridge (S) (Northampton County, Pennsylvania)
(Main design: Whipple deck truss)
Built 1876; Replaced in mainlline service 1901, but remained as third track; Removed ?
Lost Whipple deck truss bridge over Delaware River on Lehigh Valley Railway
Removed

LV - Lehigh River Bridge (Northampton County, Pennsylvania)
(Main design: Pratt deck truss)
Built 1896-9
Abandoned Pratt deck truss bridge over Lehigh Rive on Lehigh Valley Railway
Abandoned

LV - Newark Bay Bridge (Old) (Essex County, New Jersey)
Built 1913, replaced 1930
Lost Pratt through truss bridge over Newark Bay on Lehigh Valley RR
Replaced by a new bridge

LV - Towanda Bridge (Old) (Bradford County, Pennsylvania)
Built 1877, Replaced 1906
Lost Pratt through truss bridge over Susquehanna River on Lehigh Valley Railroad
Replaced by a new bridge

LVT - Aineyville Viaduct (Lehigh County, Pennsylvania)
Built 1913; Removed 1954
Lost Pratt through truss bridge over Trout Creek on Lehigh Valley Transit Co.
Removed

LVT - Race Street Bridge (Lehigh County, Pennsylvania)
Built 1892; Replaced 1954
Lost Pratt through truss bridge over Lehigh River on Lehigh Valley Transit Co.
Removed

Lye Creek Bridge (Marion County, Indiana)
Built in Montgomery County in 1879- moved to Indianapolis over Central Canal
Bedstead pony truss bridge over Central Canal in Indianapolis
Open to pedestrians

Lye Creek CR 475E Bridge (Montgomery County, Indiana)
Built in 1879 by the Wrought Iron Bridge Company; moved to indianapolis in 1999
Pony truss bridge over Lye Creek on CR 475 East,now relocated to Indianapolis.
Relocated and road vacated at bridge site.

Lye Creek CR 500N Bridge (Montgomery County, Indiana)
Built ca. 1925
Lost Pratt half-through truss bridge over Lye Creek on County Road 500 North
Replaced by a new bridge

Lye Creek CR 600N Bridge (Montgomery County, Indiana)
Built ca. 1900; replaced 1992
Lost through truss bridge over Lye Creek on CR 600 N
Replaced by new bridge

Lye Creek CR 800N Bridge (Montgomery County, Indiana)
Built 1894
Lost Bedstead Pratt pony truss bridge over Lye Creek on County Road 800 North
Replaced 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 117
Destroyed by flooding Sunday, June 28, 2015 after 6pm.

Lyndon Bridge (Whiteside County, Illinois)
(Main design: Pennsylvania through truss)
Built 1894 by Keefers & Wyncoop; span added 1912; Closed in 1980; saved from demolition 1998
Pennsylvania through truss bridge over Rock River on 6th Avenue (Lyndon Road)
Open to pedestrians

Lynn Line Road Bridge (Wood County, Wisconsin)
Built 1906
Pony truss bridge over East Fork Black River on Lynn Line Road
Closed to all traffic

Lyon Creek Bridge (Dickinson County, Kansas)
Built Ca. 1900, according to the Kansas State Historical Society
Abandoned pratt through truss bridge over Lyon Creek on 1600 Avenue
Derelict/abandoned

Lytle Fork Bridge (Scott County, Kentucky)
Abandoned pony truss bridge over Lytle Fork
Abandoned

M - 104 Bridge (Older) (Ottawa County, Michigan)
Replaced 1924
Pratt through truss bridge over Spring Lake on M - 104
No longer exists

M&B - Steven Branch Bridge (Washington County, Vermont)
Built for the Central Vermont Railroad; Abandoned 1958
Pratt through truss with all verticals bridge over Steven Branch on Abandoned Montpelier & Barre (Central Vermont) Railroad
Open to pedestrians / snowmobiles only

M&StL - Cottonwood River Bridge (Brown County, Minnesota)
Built 1899, Removed in the 1970s
Pratt deck truss bridge over Cottonwood River on Former C&NW Railway
Removed

M&StL - Eddyville Rail Bridge (Old) (Monroe County, Iowa)
Built 1884; Replaced 1926
Lost Pratt through truss bridge over Des Moines River & Muchakinock Creek on Minneapolis & St. Louis Railway
Replaced by a new bridge

M&StL - Keithsburg Lift Bridge (Mercer County, Illinois)
Built 1909; Abandoned 1971; Partially lost to fire in 1981
Vertical lift bridge that carried the M&StL across the Mississippi River at Keithsburg
Abandoned

M&StL - Spencer Bridge (Clay County, Iowa)
Built 1899; Removed 1936
Lost Pratt through truss bridge over Little Sioux River on Minneapolis & St. Louis Railway
Replaced by a new bridge

M&StL - Walnut Creek Bridge (Polk County, Iowa)
Built 1901; Removed ?
Lost Pratt through truss bridge over Walnut Creek on Minneapolis & St. Louis Railway
Removed

M&STL - Willow Creek Bridge (Cerro Gordo County, Iowa)
Lost pratt deck truss bridge over Willow Creek on Railroad
Replaced by a new bridge

Ma & Pa - Muddy Creek Bridge (York County, Pennsylvania)
Built 1900
Abandoned through truss bridge over Muddy Creek on Maryland & Pennsylvania Railroad
Derelict/abandoned

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

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 Street Bridge (1st) (Multnomah County, Oregon)
Built 1891 Rebuilt into second bridge 1900
Lost 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 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 Avenue Double Decker Viaduct (Mahoning County, Ohio)
Built 1903
Through truss bridge over Mill Creek on CR 319
Replaced by a new bridge

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)
Built 1873; Replaced 1934
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 (Ocean County, New Jersey)
Lost Pratt pony truss bridge over Toms Riiver? on Main Street
No longer exists

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)
Built 1910; 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

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