There are 8,125 bridges in this category · Only showing 6,057 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.


Kirks Ford Road Bridge (Brown County, Indiana)
Built 1915
Pony truss bridge over Middle Fork Salt Creek on Kirks Ford Road
Open to traffic

Kissing Bridge (Porter County, Indiana)
Built ca. 1900 over railroad tracks south of campus, truss span saved and moved onto campus in 2004
Pratt pony truss bridge on a pedestrian trail
Open to pedestrians only

Kiwanis Bridge (Sioux County, Iowa)
Built 1912, converted to pedestrian use by the Kiwanis Club
Two-span through truss bridge over Rock River on Kiwians Trail
Open to pedestrians only

Kiwanis Park Bridge (Johnson County, Iowa)
Built 1904 over Picayune Creek southeast of Sharon Center; Closed 1994; Relocated to Kiwanis Park in 1998
Pony truss bridge over Willow Creek in Kiwanis Park in Coralville
Open to pedestrians only

KJRY - Copperas Creek Bridge (Fulton County, Illinois)
Built 1892
Pratt through truss bridge over Copperas Creek on Toledo Peoria and Western Railway
Open to traffic

KJRY - Hamilton Slough Bridge (Hancock County, Illinois)
Built 1890
Pratt through truss bridge over Hamilton Slough on Keokuk Junction Railway
Open to traffic

KJRY - Spoon River Bridge (Fulton County, Illinois)
Built 1890; collapsed Sept. 16, 2013; replaced with deck girder spans and reopened May 21, 2014
Lost Pratt through truss bridge over Spoon River on Peoria & Western Railway
Collapsed under the weight of a train

Klein Road Bridge (Moniteau County, Missouri)
Built 1900-01 by the Kansas City Bridge Co.
Through truss bridge over Petite Saline Creek on Klein Road south of Wooldridge
Intact but closed to all traffic; however, ends are not barricaded.

Klondike Bridge (Lyon County, Iowa)
Built 1913-15 by the Western Bridge and Construction Co. of Omaha. Bypassed by modern bridge in 1977.
Through truss bridge over Big Sioux River on 180th Street southeast of Sioux Falls
Open to pedestrians only

Klump Road Bridge (Hocking County, Ohio)
Built 1888 on Klump Road over Rush Creek. Rehabilitated 1949. Replaced 2002. Relocated 2006.
Through truss bridge over Rush Creek on TR 84
Relocated To Old Town Creek Preserve

Knaggs Bridge (Shiawassee County, Michigan)
Built 1893 by the King Bridge Co.; rehabilitated 1943; replaced 1988
Lost Pratt through truss bridge over Shiawassee River on Cole Road near Bancroft
Replaced by new bridge

Knecht Bridge (Columbia County, Pennsylvania)
Built in 1893 by King Bridge Co.; replaced 1997
Lost through truss bridge over Catawissa Creek on TR 413
Replaced by new bridge

Knights Landing Swing Bridge (Yolo County, California)
Built 1902; Road section removed ca. 1933; Removed ?
Lost Pratt through truss bridge over Sacramento River on Road & Southern Pacific Railroad
Replaced by a new bridge

Knob Road Bridge (Walworth County, Wisconsin)
Abandoned pratt through truss bridge over White River on Knob Road (Abandoned)
Derelict/abandoned

Knoebels Amusement Park Bridge (Columbia County, Pennsylvania)
Pony truss bridge over South Branch Roaring Creek on Railroad
Open

Knoll Ridge Trail Bridge (Madison County, Iowa)
Built 1948
Through truss bridge over Middle River on Knoll Ridge Trail
Open to traffic

Koehler's Ford Bridge (Cole County, Missouri)
Built 1910-11 by the Canton Bridge Co. of Canton, Ohio. Rehabilitated 1990; replaced 2004.
Lost through truss bridge over North Moreau Creek on Nine Hills Road north of Lohman
Removed to make room for a replacement bridge in 2004

Koetter Ford Bridge (Franklin County, Indiana)
Built 1927; replaced 2000
Lost through truss bridge over Salt Creek on Bullfork Road
Replaced by new bridge

Kokosing River CR 180 (Dailey Rd.) Bridge (Morrow County, Ohio)
Built 1900; rehabilitated 2000
Pony truss bridge over Kokosing River on CR 180 (Dailey Rd.)
Open to traffic

Kokosing River TR 110 (Cardington-Williamsport Rd.) Bridge (Morrow County, Ohio)
Built 1900; rehabilitated 1988
Pony truss bridge over Kokosing River on TR 110 (Cardington-Williamsport Rd.)
Open to traffic

Kokosing River TR 121 (Center Corners-Fredericktown Rd.) Bridge (Morrow County, Ohio)
Built 1900; rehabilitated 1975
Pony truss bridge over Kokosing River on TR 121 (Center Corners-Fredericktown Rd.)
Replaced by a new bridge

Kokosing River TR 122 (Chipps Rd.) Bridge (Morrow County, Ohio)
Built 1874 by the Wrought Iron Bridge Co.; rehabilitated 1955
Pony truss bridge over Kokosing River on TR 122 (Chipps Rd.)
Closed to all traffic

Kooi Bridge (Sheridan County, Wyoming)
Built 1913, replaced 2003
Lost Pratt pony truss bridge over Tongue River on Kooi Road
Replaced by a new bridge

Koss Bridge (Marinette County, Wisconsin)
Built 1894 by Wisc & Mich Railroad; converted to road use 1938; Replaced 1991
Lost Pratt through truss bridge over Menomonie River on Marinette CTH JJ - Menomonee CTH S-4 (Shakey Lakes Road) in Town of Wagner
Replaced by new bridge

Koteewi Park Bridge (Hamilton County, Indiana)
(Main design: Triple-intersection lattice through truss)
Lattice truss built in 1898 and Pratt truss built in 1904
Through truss bridge over White River on a pedestrian path
Open to pedestrians only

Krape Park Demeter Drive Bridge (Stephenson County, Illinois)
Built ca. 1920
Pony truss bridge over Yellow Creek on South Demeter Drive at Krape Park in Freeport
Open to pedestrians only

Kreitz Road Bridge (Crawford County, Pennsylvania)
Built 1895 by Penn Bridge Co.; demolished 2010
Lost through truss bridge over Little Conneautte Creek on TR 899 (Kreitz Road)
Demolished and replaced.

KRL - Shenango River Bridge (Lawrence County, Pennsylvania)
(Main design: Whipple through truss)
Constructed from August 1901-02 by the BR&P, B&O and P&LE.
Whipple and Pratt through truss bridge over Shenango River on the New Castle Industrial Railroad.


Kubli Road Bridge (Moniteau County, Missouri)
Built ca. 1910
Lost through truss bridge over North Moreau Creek on Kubli Road, southeast of California
Replaced by a new bridge

Kuhl Road Bridge (Hunterdon County, New Jersey)
Built 1936
Pony truss bridge over a branch of Neshanic River on Kuhls Road
Open to traffic

Kuntz Bridge (Callaway County, Missouri)
Built 1909 by Stupp Brothers Bridge & Iron Co.; replaced 2006
Lost through truss bridge over Cedar Creek on CR 397
Replaced by a new bridge

KY 1677 Buck Creek Bridge (Pulaski County, Kentucky)
Built 1898 by the Champion Bridge Co: Replaced 1981-1982 by the R.R. Dawson Bridge Co.
Lost Pratt through truss bridge over Buck Creek on KY 1677
Replaced by new bridge

KY773 Little Sandy River Bridge #1 (Carter County, Kentucky)
Built 1913; rehabilitated 1964
Through truss bridge over Little Sandy River on alignment of former Eastern Kentucky Railroad (now KY 773)
Open to traffic

KY773 Little Sandy River Bridge #2 (Carter County, Kentucky)
Built 1913; rehabilitated 1964
Through truss bridge over Little Sandy River on alignment of former Eastern Kentucky Railroad (now KY 773)
Open to traffic

KYLE - Republican River Bridge (Cloud County, Kansas)
Two-span through truss bridge over Republican River on the Kyle Railroad, northwest of Concordia
South truss is intact, wreckage of north truss is piled on dry land.

L&HR - Delaware River Bridge (Old) (Northampton County, Pennsylvania)
Built 1899 using some second-hand parts; Replaced 1907
Lost Pratt through truss bridge over Delaware River on Central Railroad of New Jersey
Replaced by a new bridge

L&N - Cumberland River Drawbridge (Old) (Davidson County, Tennessee)
Built 1897; Replaced 1931
Lost Pratt through truss bridge over Cumberland River on Louisville & Nashville Railroad
Replaced by a new bridge

L&N - Livermore Bridge (McLean County, Kentucky)
Built 1871-72; Replaced ?
Lost Pratt through truss bridge over Green River on Louisville & Nashville Railroad
Removed; Pier remains as a lookout point

L&N - Toccoa River Bridge (Fannin County, Georgia)
Pratt through truss bridge over Toccoa River on the abandoned Louisville & Nashville Railroad Murphy branch
Abandoned 1982

L&N - Valley River Bridge (Cherokee County, North Carolina)
6 panel Pratt through truss bridge over Valley River on abandoned L&N Railroad
Abandoned

La Crosse Wagon Bridge (La Crosse County, Wisconsin)
(Main design: Howe through truss)
Built 1891, Approach span collapsed 1935; Replaced 1939
Lost Howe through truss bridge over Mississippi River on Road
Replaced by a new bridge

La Harpe Creek Bridge (Hancock County, Illinois)
Built 1901; Collapsed September 27, 2012
Lost pony truss bridge over La Harpe Creek on E CR1950, 2.5 mi. west of Fountain Green
Collapsed by an overweight truck.

La Moine River Bridge (Hancock County, Illinois)
Built 1916
Pratt through truss bridge over La Moine River on E CR1720, 5.5 mi. southwest of Fountain Gr
Open to traffic

La Moine River Bridge (Hancock County, Illinois)
Built 1901, Replaced by a Concrete Ford
Pony truss bridge over La Moine River on E CR2200, 2.0 mi. southeast of Lacrosse
Replaced by a ford.

La Porte City Bridge (Black Hawk County, Iowa)
Built 1894
Lost Pratt through truss bridge over Wolf Creek on Road
Replaced by a new bridge

La Russell Bridge (Lawrence County, Missouri)
Built 1898 by the Kansas City Bridge Co.
Through truss bridge over Spring River on CR 1000, northeast of La Russell
Open

Labadie Bottom Road Bridge (Franklin County, Missouri)
Built 1901 by Stupp Brothers Bridge & Iron Co.; later moved to this location
Through truss bridge over Labadie Creek on Labadie Bottom Road
Replaced by a new bridge and relocated. It has been repainted and appears to be in use.

Labette Creek Bridge (Neosho County, Kansas)
Bedstead truss bridge over Labette Creek on 20th Road (Truncated by dam)
Intact but closed to all traffic

Labo Del Rio Bridge (Archuleta County, Colorado)
Built 1913 by the Missouri Valley Bridge Co.
Through truss bridge over Piedra River on CR F50
Open to one-lane traffic

Lacy Creek Bridge (Washington County, Oklahoma)
Built ca. 1930
Pony truss bridge over Lacy Creek on N4030
Open to traffic

Ladd Bridge (Bartow County, Georgia)
Abandoned through truss bridge over Petit Creek just off GA 113 in Cartersville
Abandoned with deck removed

Lafayette Street Bridge (1st) (Hillsborough County, Florida)
Built 1889; Replaced 1895
Lost Pratt through truss bridge over Hillsborough River on Lafayette Street
Replaced by a new bridge

Laflin Bridge (Bollinger County, Missouri)
Built 1908 by Stupp Brothers Bridge & Iron Co.; closed to traffic Dec. 15, 2003; main span demolished Apr. 13, 2005; replacement bridge opened Jan. 2006
Lost through truss bridge over Crooked Creek southwest of Laflin on CR 408, just beyond the end of Route U
Demolished to make way for replacement bridge

LaGrange Bridge (Lewis County, Missouri)
Built 1899 by the Massillon Bridge Co.
Through truss bridge over Wyaconda River on Sunflower Street (CR 552)
Open to one-lane traffic

Lake Britton Bridge (Shasta County, California)
Built 1938, rehabilitated 2010
Cantilevered deck truss bridge over Lake Britton on CA 89
Open to traffic

Lake Creek Bridge (Venango County, Pennsylvania)
Built 1889
Pony truss bridge over Lake Creek on TR 372 (Woolen Mills Road) in Cooperstown
Replaced by a new bridge

Lake Ditch Bridge SR 42 (Morgan County, Indiana)
Built ca. 1915; Replaced 1991
Lost Pratt pony truss bridge over Lake Ditch on SR 42
Replaced by a new bridge

Lake Fork Creek Bridge (Logan County, Illinois)
Abandoned pony truss bridge over Lake Fork Creek
Derelict/abandoned with deck missing

Lake James Spillway Bridge (McDowell County, North Carolina)
Constructed in 1919 across the Lake James Spillway and replaced by a new bridge downstream in 1981 when dam was rehabilitated by Duke Energy
Lost Pratt through truss bridge over Lake James Spillway on NC 126
Replaced by a new bridge

Lake Louise State Park Bridge (Mower County, Minnesota)
Built 1910
Through truss bridge over Little Iowa River on State Park Road
Replaced by a truss bridge imported from Meeker County

Lake Shore Drive Drawbridge (Cook County, Illinois)
Built 1937
Double-deck bascule bridge over Main Branch Chicago River on Lake Shore Drive in Chicago
Open to traffic

Lake Vermilion Bridge (Vermilion County, Illinois)
Built 1925, replaced in 1978
Lost Through truss bridge over channel of Lake Vermilion (former North Fork Vermilion River) on Denmark Road in Danville
Replaced by new bridge

Lake Wilson Bridge (Russell County, Kansas)
Pony truss bridge over a branch of Lake Wilson on Reservoir Road(?)
Closed to traffic as of 1997

Lake Winnisquam New England Southern Railroad Bridge (Belknap County, New Hampshire)
Pratt deck truss bridge over Lake Winnisquam on New England Southern Railroad
Open to traffic

Lakehurst Bridge (Jackson County, Iowa)
Pratt through truss bridge over Maquoketa River on Road


Lakewood Park Bridge (Saline County, Kansas)
Built 1887 by the Missouri Valley Bridge & Iron Works
Through truss bridge over Smoky Hill River on Lakewood Drive in Salina
Relocated to Lakewood Park Middle School where it serves as a pedestrian bridge.

Lambeth Bridge (Laclede County, Missouri)
Built 1908 by the Illinois Steel Bridge Co.; rehabilitated 1987; closed to traffic 2007
Three-span through truss bridge over Osage Fork on Tulsa Road
Open with a 3 Ton limit

Lambs Creek Old IN 67 Bridge (Morgan County, Indiana)
Built 1893 by the Wrought Iron Bridge Co.
Through truss bridge over Lambs Creek on Old IN 67
Open to traffic

Lamington Road over Rockaway Creek Bridge west (Hunterdon County, New Jersey)
Possibly strengthened 2000
"Lost" through truss bridge over Rockaway Creek on Lamington Road
FOUND: still exists, surrounded by modern girder span

Lancaster High Bridge (Schuyler County, Missouri)
Lost through truss bridge over CB&Q Railroad tracks in Lancaster
Demolished

Landenberg Road Bridge (Chester County, Pennsylvania)
Built 1899 by the Schuylkill Bridge Co.; Closed 1999; Rebuilt 2010
Pony truss bridge over East Branch White Clay Creek on Landenberg Road
Open to all traffic

Landers Corners Road Bridge (Cortland County, New York)
Built 1891; rehabilitated 1985
Steel through arch bridge over Otselic River on Landers Corners Road
Open to traffic

Landing Lane Bridge (Middlesex County, New Jersey)
Built 1895; Reconstructed 1992; Trusses and deck replaced 1995
Through truss bridge over Raritan River on Landing Lane (609)
All but piers and abutmrnts replaced in 1995

Landis Avenue Bridge (Cumberland County, New Jersey)
Lost Pratt pony truss bridge over Maurice River on Landis Avenue
Replaced by a new bridge

Landis Road Bridge (Jones County, Iowa)
Built 1909
Through truss bridge over Wapsipinicon River on Landis Road
Open to traffic

Landon Nature Trail - 110 Mile Creek Bridge (Future Name) (Osage County, Kansas)
Abandoned through truss bridge over 110 Mile Creek on Abandoned Railroad Grade
Abandoned but will probably be incorporated into a trail.

Langdon Bridge (Bedford County, Pennsylvania)
Built 1889 by the King Bridge Co.
Through truss bridge over Yellow Creek on TR 655
Open to traffic

Lankford Mill Road Bridge (Bedford County, Virginia)
Built 1932. Posted 3 tons
Pony truss bridge over Big Otter River on Lankford Mill Road
Open to traffic

Laramie River Bridge (Platte County, Wyoming)
Built in 1913; replaced by a culvert
Lost pony truss bridge over East Fork Laramie River on Palmer Canyon Road (CR 204)
Replaced by a new bridge

Laramie River CR 740 Bridge (Albany County, Wyoming)
Built 1926 on Old US 30; relocated ca. 1932; replaced 1993
Lost Pratt pony truss bridge over Laramie River on CR 740
Replaced by new bridge

Larimore Road Bridge (Knox County, Ohio)
Pony truss bridge over North Fork Licking River on Larimore Road (TH 176)
Replaced by a new bridge

Larman Mill Road Bridge (Fayette County, Pennsylvania)
Built 1918
Pony truss bridge over Georges Creek on Larman Mill Road
Open to traffic

Larrick Park Bridge (Norton County, Kansas)
Built 1906, relocated to the park in 2010.
Bedstead Pratt pony truss bridge stored in park
In storage

LARy - 4th Street Trolley Bridge (Los Angeles County, California)
Built 1898; Replaced 1930
Lost Pratt through truss bridge over Los Angeles River on Los Angeles Railway
Replaced by a new bridge

Las Pilitas Road Bridge (San Luis Obispo County, California)
Built 1917
Through truss bridge over Salinas River on Las Pilitas Road
Closed to vehicles, roadway has been realigned with new bridge

Lathers Road Bridge (Rock County, Wisconsin)
Built 1887 by Wisconin Bridge & Iron
Through truss bridge over Turtle Creek on Lathers Road
Open to traffic, weight restrictions in place

Lattas Creek Bridge (Greene County, Indiana)
Built 1917
Pony truss bridge over Lattas Creek on CR 250 West
Open to traffic

Laughery Creek CR 200W Bridge (Ripley County, Indiana)
Built ca.1900; replaced in 1991
Lost Pratt through truss bridge over Laughery Creek on CR 200W
Replaced by new bridge

Laura Bradley Park Bridge (Peoria County, Illinois)
Built 1898
Deck truss bridge over Dry Run Creek on a park road within Laura Bradley Park in Peoria
Closed to all traffic

Laurel River Bridge (Laurel County, Kentucky)
Built 1925
Deck truss bridge over Laurel River on Old KY 25
Open to traffic

Lawrence Bridge (Winneshiek County, Iowa)
Built 1880 by the Wrought Iron Bridge Co.
Closed pony truss bridge over Little Turkey River on 330th Avenue in Jackson Junction
Privately owned

Lay Bridge (Lewis County, Missouri)
Built 1918 by the Dildine Bridge Co.
Through truss bridge over Middle Fabius River on Gingko Street (CR 504)
Open to traffic

Layton Bridge (Fayette County, Pennsylvania)
Built 1892; rehabilitated 1984
Through truss bridge over Youghiogheny River on PA 4038
Open to traffic

Lazy J Campground Bridge (Transylvania County, North Carolina)
Pratt pony truss bridge over French Broad River on a driveway
Open to traffic

LC - Catawba River Trestle (Lancaster County, South Carolina)
Replaced prior bridge after 1916 flood, was moved here from another location
Bridge over Catawba River on Lancaster and Chester Railway
Open to railroad traffic

Le Grand Truss Bridge (Tama County, Iowa)
Built 1896; rehabilitated 1930 Lost in flooding in 2008
Lost through truss bridge over Iowa River on Abbott Avenue, piers remain
Destroyed in 2008 flooding

Lea Bridge (Bradley County, Tennessee)
Built 1886; Demolished 1988
Lost Pony truss bridge over Candies Creek on Old Georgetown Street
Replaced by a new bridge; Moved to park in Hamilton County

Lease Bridge (Champaign County, Illinois)
Built 1920, replaced 1993
Lost Pony truss bridge over Saline Branch Drainage Ditch on TR 181A
Replaced by new bridge

Leatherwood Bridge (Hickman County, Tennessee)
Built 1918; Bypassed by new bridge in 1987
Abandoned Pratt through truss bridge over Duck River
Abandoned

Leatherwood Creek Bridge CR 110 W (Parke County, Indiana)
Built ca. 1920; Replaced 1986
Lost Pratt pony truss bridge over Leatherwood Creek on CR 110 W
Replaced by a new bridge