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.

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

Kunkel Mill Bridge (Holt County, Missouri)
Built 1919 by the Kansas City Bridge Co.
Pony truss bridge over Kimsey Creek on CR 233
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

KY 2127 Bridge (Daviess County, Kentucky)
Lost Pratt through truss bridge over Panther Creek on KY 2127
Replaced by a new bridge

KY55 Salt River Bridge (Spencer County, Kentucky)
Built 1932; replaced 2016
Lost Pratt through truss bridge over Salt River on KY 55 in Taylorsville
Replaced by a new bridge

KY644 Levisa Fork Bridge (Lawrence County, Kentucky)
Built ?; One span built 1904 by the King Bridge Co.; Converted to road use after 1914; rehabilitated 1970
Through truss bridge over Levisa Fork of Big Sandy on KY 644
Open to traffic

KY773 Little Sandy River Bridge #1 (Carter County, Kentucky)
Built 1913; rehabilitated 1964; Removed 2020
Through truss bridge over Little Sandy River on alignment of former Eastern Kentucky Railroad (now KY 773)
Replaced by a new bridge

KY773 Little Sandy River Bridge #2 (Carter County, Kentucky)
Built 1913; rehabilitated 1964; Removed 2020
Through truss bridge over Little Sandy River on alignment of former Eastern Kentucky Railroad (now KY 773)
Replaced by a new bridge

KYLE - Republican River Bridge (Cloud County, Kansas)
Originally on a Missouri Pacific line
Pratt through truss bridge over Republican River on the Kyle Railroad, northwest of Concordia
South truss is intact, north portion of span has been rebuilt as of 8.26.2020.

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&I - Louisville-Anchorage Bridge (Jefferson County, Kentucky)
Lost Pratt through truss bridge over Ridge Court,Louisville and Nashville Railroad, KY 146 on Louisville & Interurban Railroad
Removed but not replaced

L&N - Danville Swing Bridge (Benton County, Tennessee)
(Main design: Through truss)
Built in 1932; replaced in ?
Lost Through truss bridge over Tennessee River / Kentucky Lake on Louisville & Nashville Railroad
Replaced by a new bridge

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

La Valle Bridge (Sauk County, Wisconsin)
Lost Through truss bridge over Baraboo River on Center Street in La Valle
Replaced by a new bridge

LA&W - Hackett Mills Bridge (Androscoggin County, Maine)
Lost Pratt through truss bridge over Little Androscoggin River on Auburn, Mechanic Falls & Norway Street Railway
Replaced by a new bridge

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

Labette Creek Bridge (Labette County, Kansas)
Built 1903
Double span Pratt pony truss bridge over Labette Creek, 4.0 mi. north and 2.5 mi. west of Chetopa
Closed to all traffic

Labette Road Bridge (Franklin County, Kansas)
Abandoned pony truss bridge over Turkey Creek on Labette Road, 2.0 mi. north and 0.4 mi. east of Rantoul
Derelict/abandoned

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

Lackawaxen Bridge at Prompton (Wayne County, Pennsylvania)
Pratt pony truss bridge over Lackawaxen river
Replaced by a new bridge

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 swing 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 CR 2200E Bridge (Christian County, Illinois)
Built 1898
Bedstead pony truss bridge over Lake Fork on CR 2200E, 2 mi. northwest of Pana
Open to traffic

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

Lake Fork Gunnison River Bridge (Gunnison County, Colorado)
Built ca. 1913; Replaced 1923
Lost Pratt pony truss bridge over Lake Fork Gunnison River on Highway
Replaced by a new bridge

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

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
Closed to traffic

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
Replaced by a new bridge with original trusses as decorations

Landers Corners Road Bridge (Cortland County, New York)
Built 1891; rehabilitated 1985
Steel through arch bridge over Otselic River on Landers Corners Road in Upper Lisle
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 2017
Lost pony truss bridge over East Fork Laramie River on Palmer Canyon Road (CR 204)
Replaced by a new bridge

Laramie River Bridge (Albany County, Wyoming)
Built 1926; rehabilitated 1979; Replaced 1993
Lost Half-hip Pratt pony truss bridge over Laramie River on CR 740
Replaced by a 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

Lassiter Mill Bridge (Wake County, North Carolina)
Lost Pratt through truss bridge over Crabtree Creek on Old Lassiter Mill Road
Removed but not replaced

Lattas Creek Bridge (Greene County, Indiana)
Built 1917
Pony truss bridge over Lattas Creek on CR 250 West
Replaced by a new bridge

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

Laughery Switch Bridge (Ripley County, Indiana)
Built ca. 1890
Lost Pratt deck truss bridge over Laughery Creek on Right Of Way Road (Now SR 350)
Replaced by a 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; railroad abandoned in 1931; 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

Leaf River Bridge (Ogle County, Illinois)
Lost Pratt pony truss bridge over Leaf River
No longer exists

Leander Roberts Bridge (Hancock County, Indiana)
Replaced 1994
Lost through truss bridge over Sugar Creek on CR 700 N
Replaced by new bridge

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

Leavenworth Terminal Bridge (Leavenworth County, Kansas)
Built 1892-94 under the direction of George S. Morison for about $300,000; dedicated Jan. 2, 1894
Lost through truss swing bridge over the Missouri River on Chicago & North Western Railway at Leavenworth
Removed

Lebanon Valley Rail Trail - Swatara Creek Bridge (Lebanon County, Pennsylvania)
Pratt through truss bridge over Swatara Creek on Lebanon Valley Rail Trail
Being converted to trail use.

Lecompton-Perry Bridge (Douglas County, Kansas)
(Main design: Parker through truss)
Built 1899; Damaged due to floods in 1903, 1905, & 1908; 3 spans lost to ice jam 1910; Razed 1969
Lost Parker through truss bridge over Kansas River on Halderman Street.
Replaced by a new bridge a few hundred yards downstream.

Lee Creek Road Bridge (Crawford County, Arkansas)
Built 1898; one span replaced in 1930; bypassed in 1995
Abandoned through truss bridge over Lee Creek on Lee Creek Road (West Rena Road), just north of I-40
Closed to all traffic

Lee's Bridge (Dale County, Alabama)
Abandoned pratt pony truss bridge over Choctawhatchee River on an abandoned alignment of AL 56
Derelict/abandoned

Leechburg Bridge - Older (Westmoreland County, Pennsylvania)
Collapsed during demolition in 1935
Lost Pratt deck truss bridge over Kiskiminetas River
Replaced by a new bridge in 1935

Leedle Mill Road Bridge (Rock County, Wisconsin)
Built 1916
Lost Pratt through truss bridge over Badfish Creek on Leedle Mill Road
Replaced by a new bridge

Leeper Ford Bridge (Greene County, Missouri)
Built 1930 using recycled material; replaced 1991
Lost through truss over Sac River on Farm Road 34 southwest of Walnut Grove, near the Dade County line
Replaced by a concrete bridge

Leet Street Bridge (Allegheny County, Pennsylvania)
Originally built 1886 by the Morse Bridge Co. at Lawrence Junction; relocated here in 1904
Through truss bridge over Norfolk Southern Railroad and PA 65 on Leet Street in Leetsdale


Left Branch AR 123 Bridge (Newton County, Arkansas)
Lost through truss bridge over Left Branch Big Creek on AR 123
Replaced by new bridge in 2000

Lefty O'Doul Bridge (1933) (San Francisco County, California)
Built 1932
Pratt truss variant Bascule bridge over China Basin on Third Street in San Francisco
Open to traffic

Lehigh Canal Bridge (Northampton County, Pennsylvania)
Built 1910; rehabilitated 1949
Through truss bridge over Lehigh Canal on High Street in Glendon
Intact but closed to all traffic

Lehigh Gap Bridge (Lehigh County, Pennsylvania)
Built 1930; rehabilitated 1984
Pratt deck truss bridge over Lehigh River on PA 873
Open to traffic

Lehigh Street Bridge (Lehigh County, Pennsylvania)
Built 1908; rehabilitated 1947
Deck truss bridge over Lehigh River on PA 1014 (Lehigh Street) in Hokendauqua
Replaced by a new bridge

Lehigh Valley RR - Coxton Bridge (Luzerne County, Pennsylvania)
Built in 1926, abandoned ca. 1980; demolition begun Oct. 2017
Abandoned Pratt through truss bridge over North Branch Susquehanna River on Abandoned Lehigh Valley Railroad
Derelict/abandoned for decades; demolished October 2017

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