There are 8,017 bridges in this category · Only showing 5,937 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.


Kettle River Bridge (Pine County, Minnesota)
Built 1948
Deck truss bridge over Kettle River on MN 123 at Sandstone
Open to traffic

Key Bridge (McCormick County, South Carolina)
Built 1912: Rebuilt in 2007 for by the SC National Guard and the US Forest Service for use as a multi-use path
Pratt through truss bridge
Open to pedestrians

Keya Paha River Bridge (Boyd County, Nebraska)
Built 1929; rehabilitated 1966
Through truss bridge over Keya Paha River on COLL 7442, 4 mi. south and 5 mi. east of Naper
Open to traffic

Keys Bridge (Washington County, Pennsylvania)
Built 1903
Pony truss bridge over Raccoon Creek on TR 821
Open to traffic

Keystone Bridge (Park County, Colorado)
Built ca. 1870 by the Keystone Bridge Co. for the Denver, South Park and Pacific Railroad in Jefferson County near Kassler. Converted to highway use ca. 1935; relocated 1985.
Wrought-iron through truss bridge over North Fork South Platte River at Bailey
Open to pedestrians only

Keytesville Bridge (Chariton County, Missouri)
Built 1927; rehabilitated 1940
Through truss bridge over Mussel Fork on US 24 at Keytesville
Open to traffic

Kiamichi River Bridge (Pushmataha County, Oklahoma)
Built 1916
Through truss bridge over Kiamichi River on N4485 (6410C)
Was closed at time of visit in 2007

Kickapoo Creek Bridge (Lincoln County, Oklahoma)
Built 1914
Pony truss bridge over Kickapoo Creek on N3410
Open to traffic

Kidd Bridge (Beaverhead County, Montana)
Built 1909
Pony truss bridge over Red Rock River on CR 257 (Ashbough Trail)
Open to traffic

Kiger Hill Road Bridge (Greene County, Pennsylvania)
Built 1909; rehabilitated 1995
Pony truss bridge over Shannon Run on TR 385
Open to traffic

Kilbourn Bridge (Van Buren County, Iowa)
Built 1908-09 by the Ottumwa Supply & Construction Co.
Six-span through truss bridge over the Des Moines River on Lark Avenue
Closed to all traffic

Kilbourne Bridge (Delaware County, Ohio)
Lost Bridge over Alum Creek on SR 521
Gone

Kilburn Bridge (Logan County, Arkansas)
Destroyed by flood in May 1990 and replaced
Lost through truss bridge over Petit Jean River on Thomas Road west of Magazine
Destroyed by flooding

Kilgore Bridge (Buffalo County, Nebraska)
Built 1915
Truss bridge over North Channel Platte River on Basway Strip Access
Open to traffic

Killbuck Creek CR 500N Bridge (Delaware County, Indiana)
Built 1925; replaced 1991
Lost pony truss bridge over Killbuck Creek on CR 500 N
Replaced by new bridge

Killbuck Creek Rangeline Road Bridge (Madison County, Indiana)
Built ca.1920, replaced in 1989
Lost Pratt through truss bridge over Killbuck Creek on Rangeline Road (CR 200E)
Replaced by new bridge

Kilmore Creek Bridge (Clinton County, Indiana)
Built in 1885 by the Massillon Bridge Company; replaced in 1991.
Lost through truss bridge over Kilmore Creek on CR 300 E at 300E-420N
Replaced by new bridge

Kilmore Creek CR 500E Bridge (Clinton County, Indiana)
Built ca. 1890
Lost Pratt through truss bridge over Kilmore Creek on County Road 500 East
Replaced by a new bridge

Kimpton Road Bridge (Monroe County, Michigan)
Built 1900
Pony truss bridge over South Branch Macon Drain on Kimpton Road
Removed To Be Dismantled and Stored For Future Restoration

Kincaid Creek Bridge (Pendleton County, Kentucky)
Built 1910
Pony truss bridge over Kincaid Creek on Falmouth-Lenoxburg Road
Bridge has been replaced

Kinderhook Creek Bridge (Columbia County, New York)
Built 1927
Through truss bridge over Kinderhook Creek on NY 66
Open to traffic

King Hill Bridge (Elmore County, Idaho)
Built 1910 Bridge relocated in 1998 New bridge constructed in 2001
Lost Pratt through truss bridge over Snake River on Fas 3808
Replaced by new bridge

Kingfisher Creek Bridge (Kingfisher County, Oklahoma)
Built 1929 by the Virginia Bridge & Iron Co.; rehabilitated 1993
Through truss bridge over Kingfisher Creek on E0760 Rd.
Open to traffic

Kingfisher Crossing Bridge (Jefferson County, Indiana)
Built 1884 by Lomas Forge Bridge Works
Pony truss bridge over Big Creek on E Road
Bridge is being replaced with a slab. Apparently the trusses are being reused on it.

Kingfisher Trail - Etowah River Bridge (Floyd County, Georgia)
Pratt through truss bridge over Etowah River on Kingfisher Trail (formerly Central of Georgia Railway)
Open to pedestrians only

Kings Bridge (Polk County, Georgia)
Built 1924, closed sometime in the early '90's
Abandoned Pratt pony truss bridge over Cedar Creek on Kings Bridge Road
Abandoned

Kings Creek Bridge (old) (Haskell County, Oklahoma)
1 of 2 spans remains partially on this old OK 9 bridge.
Abandoned pony truss bridge over Kings Creek, formerly carried OK 9
Abandoned

Kings Mill Bridge (Meigs County, Tennessee)
Built 1884 by the Champion Bridge Co.
Pratt through truss bridge over Sewee Creek on Big Sewee Road
Open to traffic

Kingston Ford Bridge (Washington County, Missouri)
Built 1885-86 at Lemay Ferry by the St. Louis Bridge & Iron Co.; relocated here in 1917
Closed through truss bridge over Big River just northeast of Washington State Park
Closed to all traffic

Kingston Wagon Bridge (Green Lake County, Wisconsin)
Replaced 1992
Lost Through truss bridge over Grand River on South Street at Kingston
Replaced by a new bridge

Kinkaid Lake Bridge (Jackson County, Illinois)
Built 1935
Lost through truss bridge over Kinkaid Lake on IL 151 south of Ava
Replaced by a new bridge

Kinniconnick Creek KY 8 Bridge (Lewis County, Kentucky)
(Main design: Camelback through truss)
Built ca. 1930
Through truss bridge over Kinniconnick Creek on KY 8
Open to traffic

Kinsman Road Overpass (Cuyahoga County, Ohio)
Built 1908
Lost Pratt through truss bridge over Pennsylvania Railroad on Kinsman Road
Replaced by a new bridge

Kintner Road Bridge (Bucks County, Pennsylvania)
Built 1937
Pony truss bridge over Gallows Run on Kintner Road
Under construction for rehab

Kinzie Street Bridge (Cook County, Illinois)
Built 1909; rehabilitated 1999
Bascule bridge over North Branch Chicago River on Kinzie Street in Chicago
Open to traffic

Kirby-Flynn Bridge (Palo Alto County, Iowa)
Built in 1883; may have been relocated here in 1919 in conjunction with the West Fork Des Moines River rechanneling project
Newly restored through truss bridge over New Channel West Fork Des Moines River on Brushy Bayou Road
Completely rehabilitated and now open to traffic

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