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.
Logan Creek Bridge (Dodge County, Nebraska)
Built 1910Pony truss bridge over Logan Creek on CR DOpen to traffic
Logan Mill Bridge (Logan County, Kentucky)
Built 1925; Rehabilitated 2014.Pratt through truss bridge over Red River on Logan Mill RoadOpen to traffic
Logan Street Truss Bridge (Ingham County, Michigan)
Built ca. 1904; Replaced by 1928Lost Pratt through truss bridge over Grand River on Logan Street (Today Martin Luther King Jr. Blvd.)Replaced by a new bridge
London Mills Bridge (Knox County, Illinois)
(Main design: Pratt through truss)Built 1883; replaced 1985. One of the nine bridges submitted to NRHP in "Metal Highway Bridges of Fulton County Thematic Resources", 1980-10-29Lost Pratt through truss bridge over Spoon River on CH 39 in London MillsReplaced by a new bridge
London Pike-Panther Creek Bridge (Daviess County, Kentucky)
Lost Pratt pony truss bridge over North Fork of Panther Creek on London Pike RoadRemoved but not replaced. This section of the road closed in 1980.
Lone Rock Bridge (Richland County, Wisconsin)
Built 1932; rehabilitated 1989Through truss bridge over Wisconsin River on WI 130/WI 133Open to traffic
Lone Star Brewery Bridge (Bexar County, Texas)
Bridge Between the towers of the Original Lone Star BreweryPratt pony truss bridge over San Antonio River on Museum Reach RiverwalkOpen to pedestrians only
Lone Wolf Bridge (Tom Green County, Texas)
Built 1922; rehabilitated 1933Through truss bridge over South Concho River on E. Avenue K in San AngeloOpen to pedestrians only
Long Branch CR 759 Bridge (Monroe County, Missouri)
Built ca. 1925 on a state highway and later relocated herePony truss bridge over Long Branch on CR 759Open to traffic
Long Branch CR 859 Bridge (Monroe County, Missouri)
Built 1909 by the Illinois Steel Bridge Co.Pony truss bridge over Long Branch Creek on CR 859Open to traffic
Long Branch Creek Bridge (Payne County, Oklahoma)
Built 1910Pony truss bridge over Long Branch Creek on Country Club Rd.Open to traffic
Long Bridge (Ida County, Iowa)
Replaced 1913Lost Pratt through truss bridge over Maple River on 1st StreetReplaced by a new bridge
Long Bridge (Marathon County, Wisconsin)
(Main design: Pratt through truss)Lost Pratt through truss bridge over Wisconsin River on Main StreetReplaced by a new bridge
Long Cane Creek Bridge (McCormick County, South Carolina)
Built 1932Through truss bridge over Long Cane Creek on S-33-117Open to traffic
Long Creek Bridge (Decatur County, Iowa)
Built 1968Through truss bridge over Long Creek on 130th StreetOpen to traffic
Long Creek Bridge (Hancock County, Illinois)
Lost Half-hip Pratt pony truss bridge over Long CreekNo longer exists
Long Creek Bridge (Stone County, Missouri)
Removed for Table Rock LakeLost through truss bridge over Long Creek on Old MO 86No longer exists
Long Creek Bridge (Decatur County, Iowa)
Built ca. 1930; rehabilitated 1989Through truss bridge over Long Creek on 122nd StreetOpen to traffic
Long Creek Bridge (Old) (Pender County, North Carolina)
Lost Pratt pony truss bridge over Long Creek on Predecessor road to Nc210Replaced by a new bridge
Long Grove “Covered” Bridge (Lake County, Illinois)
Built 1906; wooden roof and substructure added 1972 to make it a "covered bridge," rehabilitated 1981 and 20201906 pony truss bridge with modern wooden superstructure over Buffalo Creek on Robert Parker Coffin Road in Long GroveOriginal pony truss reopened
Long Point Bridge (Tama County, Iowa)
Built 1941Through truss bridge over Iowa River on P AvenueOpen to traffic
Long Point Bridge (Old) (Tama County, Iowa)
Built 1895; Replaced 1941Lost Pratt through truss bridge over Iowa River on RoadReplaced by a new bridge
Long Pond Bridge (Knox County, Indiana)
Built ca.1905 by the Canton Bridge CompanyThrough truss bridge over Long Pond and White River on CR 1050 SouthAbandoned with portion of deck missing
Longwood Lane Bridge (Fauquier County, Virginia)
Collapsed July 11, 2017Lost pony truss bridge over Cedar Run on Longwood Lane (private drive)Collapsed under weight of UPS truck
Lonnis Hill Road Bridge (Jefferson County, Indiana)
Built ca. 1890; replaced 1997Lost through truss bridge over Indian-Kentuck Creek on Lonnis Hill Road (CR 675 E)Replaced by new bridge
Lookout Creek Bridge (Dade County, Georgia)
Through truss bridge over Lookout Creek on Old Bridge LaneOpen to residents only.
Loop Road Bridge (Lancaster County, Pennsylvania)
Built 1940; rehabilitated 1970Pony truss bridge over Pequea Creek on Loop RoadFrom Goggel aerials appears to have been removed but not replaced
Lopp Hollow Bridge (Harrison County, Indiana)
Built ca. 1905Lost Pratt pony truss bridge over Branch of Ohio River on River RoadReplaced by a new bridge
Lortie Road Bridge (Allen County, Indiana)
Built ca. 1895Lost Pratt pony truss bridge over Flatrock Creek on Lortie RoadReplaced by a new bridge
Lost Bridge (Miami County, Indiana)
Built 1920 by the Rochester Bridge Co.2-span riveted Pratt through truss bridge over Eel River on CR 100 EastClosed
Lost Bridge (Dearborn County, Indiana)
Built 1916Through truss bridge over Laughery Creek on Bells Branch RoadOpen to traffic
Lost Creek Bridge (Bourbon County, Kansas)
Built 1888Through truss bridge over Lost Creek on 155th StreetDerelict/abandoned
Lost Creek Bridge (Lee County, Iowa)
Built 1925; replaced 2015-16Lost through truss bridge over Lost Creek on Lost Creek RoadReplaced by a new bridge
Lost Creek Bridge (Nuckolls County, Nebraska)
Built 1935; rehabilitated 1991Pony truss bridge over Lost Creek on 4th St/Park Rd 1 in SuperiorOpen to traffic
Lost Creek Bridge No. 1 (Lincoln County, Missouri)
Pratt pony truss bridge over Lost Creek on Farm roadOpen to traffic
Lost Creek Bridge No. 2 (Lincoln County, Missouri)
Pratt pony truss bridge over Lost Creek on Farm roadOpen to traffic
Lost Creek Bridge No. 3 (Lincoln County, Missouri)
Pratt pony truss bridge over Lost Creek on Farm roadOpen to traffic
Lost River Bridge (Hardy County, West Virginia)
Built 1931; rehabilitated 1994Through truss bridge over Lost River on CR 55/20Open to traffic
Lost River-101 Ranch Rd. Bridge (Orange County, Indiana)
Built ca. 1910Lost Pratt pony truss bridge over Lost River on 101 Ranch Road (CR 960W)Replaced by a new bridge
Lost River-Tater Rd. Bridge (Orange County, Indiana)
Built ca. 1920; rehabilitated 1992Pony truss bridge over Lost River on Tater Road (CR 500E)Open to traffic
Louie Road Bridge (Siskiyou County, California)
Built 1935Through truss bridge over Shasta River (Louie Br) on Louie RoadOpen to traffic
Louis Creek Bridge (Iroquois County, Illinois)
Built 1907Pony truss bridge over Louis Creek on TR 14ARemoved and replaced
Loup City State Aid Bridge (Sherman County, Nebraska)
Built 1913Lost Pratt through truss bridge over Loup River on NE-10Replaced by a new bridge
Loutre River CR 1051 Bridge (Callaway County, Missouri)
Built 1905 by the Illinois Bridge & Iron Co.Pony truss bridge over Loutre River on CR 1051Open to traffic
Loutre River MO 19 Bridge (Montgomery County, Missouri)
Built 1929; washed out and repaired in 1943; replaced 1995Through truss bridge over Loutre River on MO 19Replaced by new bridge
Love's Bridge (Greene County, Tennessee)
Collapsed in 1963 & 1968Lost Pratt through truss bridge over Nolichucky River on US 411Replaced by a new bridge in 1968
Lover's Lane Bridge (Floyd County, Iowa)
Built 1884; replaced 1922Lost Pratt through truss bridge over Shell Rock River on Main AvenueReplaced by a new bridge
Lover's Lane Bridge (Lewis and Clark County, Montana)
Built 1914Through truss bridge over Elk Creek 041 on CR 309Open to traffic
Low Brown Ford Bridge (Cedar County, Missouri)
Built 1917Lost Pratt through truss bridge over Bear Creek on CR 287Demolished
Lowe Bridge (White County, Illinois)
(Main design: Pratt through truss)Built in 1891 by the Massillon Bridge CompanyAbandoned Pratt through truss bridge over the Little Wabash River on a closed section of County Road 1200 EastAbandoned with portions of deck missing
Lowe's Bridge (White County, Indiana)
Replaced 1970Lost Pratt through truss bridge over Tippecanoe River/Lake Shafer on Lowes Bridge RoadReplaced by new bridge
Lowell Bridge (Henry County, Iowa)
(Main design: Pratt through truss)Built 1889; Replaced 1976Lost Pratt through truss bridge over Skunk River on RoadReplaced by a new bridge
Lowell Dam Wagon Bridge (Cherokee County, Kansas)
(Main design: Parker through truss)Lost Parker through truss bridge over Shoal Creek on wagon roadReplaced by a new bridge
Lower Bridge Sheffield 21-02-02 (Berkshire County, Massachusetts)
Built 1953Lost Pratt through truss bridge over Housatonic River on Maple AvenueNo longer exists
Lower Bridge, Bondsville (Hampshire County, Massachusetts)
Built 1880; lost 2005Pratt Pony Truss bridge over Swift River on River Street in BelchertownReplaced by a new bridge
Lower Dillsboro Road Bridge (Dearborn County, Indiana)
Built 1926; replaced 1991Lost through truss bridge over South Hogan Creek on Lower Dillsboro RoadReplaced by new bridge
Lower Elgin Road Bridge (Bastrop County, Texas)
The KCBI bid for four bridges, including this one, was for $12,829 and was accepted by the Bastrop County Commissioners Court on May 31, 1887 (source: Bastrop County Commissioners Court meeting minutes, Vol. D. p. 270)Pratt through-truss bridge over Wilbarger Creek on Lower Elgin Road (CR 55). This road has also been known as Coats Rd.The damage from the floods of 2015 was repaired in the fall of 2018, and the bridge is open again to pedestrian traffic.
Lower Gas Point Road Bridge (Shasta County, California)
Built 1920Through truss bridge over North Fork Cottonwood Creek on Lower Gas Point RoadOpen to traffic
Lower Greenville Bridge (Wayne County, Missouri)
(Main design: Pennsylvania through truss)Built in 1911 by the Stupp Bros. Bridge & Iron Co. removed in 1931 by S. J. Cohen Construction Co,Lost Bridge over St. Francis River on State Route 23No longer exists, displaced lally columns remain along river/lake bank
Lower Iron Bridge (Dale County, Alabama)
Abandoned pratt through truss bridge over Choctawhatchee River on an abandoned section of Co Rd 421Abandoned
Lower Landsdown Road Bridge (Hunterdon County, New Jersey)
Built 1885; rehabilitated 1982Phoenix column Pratt through truss bridge over Capoolong Creek on Lower Landsdown RoadOpen to traffic
Lower Paint Creek Road Bridge (Greene County, Tennessee)
Built 1935; rehabilitated 1983; replaced 2004Lost Pratt pony truss bridge over Paint Creek on Lower Paint Creek Road
Lower Pine Run Bridge (Armstrong County, Pennsylvania)
Built ca. 1895Through truss bridge over Pine Run on Lower Mudlic RoadOpen to traffic
Lower Trenton Bridge (1875) (Mercer County, New Jersey)
rebuilt 1876, 1892, 1898Lost Pratt through truss bridge over Delaware River on PRRSuperstructure replaced
Lowmans Ferry Bridge (Pulaski County, Virginia)
(Main design: Camelback through truss)Built 1935; structural steel, deck and railings replaced in 1972Lost through truss bridge over Claytor Lake on Lowmans Ferry RoadSuperstructure replaced on the existing substructure.
Lowndes Bridge (Wayne County, Missouri)
Built 1913, probably by the Vincennes Bridge Co.; closed to traffic in 2008; demolished Feb. 2010Lost through truss bridge over Bear Creek located at the Iron Bridge Conservation AreaNo longer exists
Loyalsock Creek Bridge (Sullivan County, Pennsylvania)
Built 1937; rehabilitated 1987Through truss bridge over Loyalsock Creek on PA 87 in ForksvilleOpen to traffic
LS&MS - Chagrin River Bridge (Old) (Lake County, Ohio)
Built ?; Replaced 1904Lost Pratt deck truss bridge over Chagrin River on Lake Shore & Michagan Southern RailroadReplaced by a new bridge
LSRC - Bay City Swing Bridge (Bay County, Michigan)
Built 1892Pratt through truss bridge over Saginaw River on Lake State Railway (formerly Detroit & Mackinac RR)Open to traffic
LSX - Susquehanna River Bridge (Luzerne County, Pennsylvania)
Pratt through truss bridge over Susquehanna River on Luzerne and Susquehanna Railway CompanyOpen to traffic
Lucas Grove Road Lowe Run Bridge (Muscatine County, Iowa)
Built 1877; Replaced ca. 1914Lost Pratt through truss bridge over Lowe Run on Muscatine-Des Moines Shortline/Lucas Grove RoadReplaced by a new bridge
Luce Line Trail Bridge (Hennepin County, Minnesota)
Built 1885 in Pearl, Illinois; Relocated to Long Lake in 1914; Relocated again 2008Pratt through truss bridge over Wayzata Boulevard on Luce Line State TrailOpen to pedestrians
Lucien Bridge (Franklin County, Mississippi)
Built 1938Through truss bridge over McCall Creek on Stewart RoadClosed
Lucy Creek Bridge (Osage County, Oklahoma)
Built ca. 1930Pony truss bridge over Lucy Creek on FAS 5754Open to traffic
Ludwig Bridge (Johnson County, Iowa)
Lost Pratt pony truss bridge over Clear Creek on Jasper AvenueReplaced by a new bridge
Lukins Bridge (Madison County, Indiana)
Built 1879Lost Pratt through truss bridge over Lick Creek on County Road 300 WestCollapsed. Replaced by new bridge.
Lumiere Palace Overpass (St. Louis, Missouri)
Built 2006-2007 as part of a casino-hotel complexPratt through truss bridge over 2nd Street on Pedestrian Walkway in St. LouisOpen to pedestrians
Lundy Bridge (Winneshiek County, Iowa)
Built 1900Through truss bridge over Upper Iowa River on Lundy Bridge RoadOpen to traffic
Lupus Bridge (Moniteau County, Missouri)
Built 1894 by the Kansas City Bridge & Iron CoThrough truss bridge formerly over Splice Creek on Ridge Road (CR 4) near LupusRelocated to private property next to creek
Luraville Swing Bridge (Suwannee County, Florida)
Built 1907; Replaced by new bridge in 1947Lost swing bridge over Suwannee River on unnamed road in LuravilleReplaced by new bridge
Lusk Creek Bridge (Pope County, Illinois)
Built 1934Through truss bridge over Lusk Creek on Eddyville Road (FAS 930), southeast of Eddyville, 3.25 mi. southeast of EddyvilleOpen to two-lane traffic
Luther's Mill Bridge (Bradford County, Pennsylvania)
Built 1912 by the Owego Bridge Co., rehabilitated 1968Through truss bridge over Sugar Creek on TR 552Open to traffic
LV - Delaware River Bridge (Northampton County, Pennsylvania)
Built 1901Abandoned pratt deck truss bridge over Delaware River on RailroadAbandoned
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 RailwayRemoved
LV - Lehigh River Bridge (Northampton County, Pennsylvania)
(Main design: Pratt deck truss)Built 1896-9Abandoned Pratt deck truss bridge over Lehigh River on Lehigh Valley RailwayAbandoned
LV - Newark Bay Bridge (Old) (Essex County, New Jersey)
Built 1913, replaced 1930Lost Pratt through truss bridge over Newark Bay on Lehigh Valley RRReplaced by a new bridge
LV - Towanda Bridge (Old) (Bradford County, Pennsylvania)
Built 1877, Replaced 1906Lost Pratt through truss bridge over Susquehanna River on Lehigh Valley RailroadReplaced by a new bridge
LVT - Aineyville Viaduct (Lehigh County, Pennsylvania)
Built 1913; Removed 1954Lost Pratt through truss bridge over Trout Creek on Lehigh Valley Transit Co.Removed
LVT - Race Street Bridge (Lehigh County, Pennsylvania)
Built 1892; Replaced 1954Lost Pratt through truss bridge over Lehigh River on Lehigh Valley Transit Co.Removed
Lycoming Creek Bridge (Lycoming County, Pennsylvania)
Pony truss bridge with steel arch reinforcement over Lycoming Creek on TR 860Open to traffic
Lye Creek Bridge (Marion County, Indiana)
Built in Montgomery County in 1879- moved to Indianapolis over Central CanalBedstead pony truss bridge over Central Canal in IndianapolisOpen to pedestrians
Lye Creek CR 475E Bridge (Montgomery County, Indiana)
Built in 1879 by the Wrought Iron Bridge Company; moved to indianapolis in 1999Pony 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. 1925Lost Pratt half-through truss bridge over Lye Creek on County Road 500 NorthReplaced by a new bridge
Lye Creek CR 600N Bridge (Montgomery County, Indiana)
Built ca. 1900; replaced 1992Lost through truss bridge over Lye Creek on CR 600 NReplaced by new bridge
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