There are 9,300 bridges in this category · Only showing 7,312 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.
Kelley Bridge (Bradford County, Pennsylvania)
Built 1892; rehabilitated 1962Pratt through truss bridge over Towanda Creek on Curt Wright Road (TR 330)Bridge has been removed.
Kelley Bridge (Sullivan County, Indiana)
Built in 1902 by the Vincennes Bridge CompanyThrough truss bridge over Sugar Creek on CR 550 WestLost
Kellogg Bridge (Tulsa County, Oklahoma)
Built 1915, Relocated c. 2002.Bedstead Pratt pony truss bridge over small lake on the grounds of the Oklahoma Department of Transportation Tulsa office, on footpath.Open to pedestrians
Kellogg Bridge (Jasper County, Iowa)
Built 1898; rehabilitated 1975, demolished 2014Through truss bridge over North Skunk River on Ridge Road in KelloggDemolished.
Kelly Bridge (Indiana County, Pennsylvania)
Built 1904Pony truss bridge over South Branch Plum CreekOpen to traffic
Kelly Creek Bridge (Ford County, Illinois)
Built ca. 1895Lost Through truss bridge over Kelly Creek on E3000N RdRemoved
Kelly Ford Bridge (Vernon County, Missouri)
Built 1891 by the Chicago Bridge Co.; replaced 1996Lost through truss bridge over Clear Creek on CR 466Replaced by new bridge
Kelly Road Bridge (Macoupin County, Illinois)
Built 1917; made obsolete by a new bridge on Shipman Road in 1935Pony truss bridge over Coop Branch on Kelly Road (TR 166), just off Shipman RoadOpen to one-lane traffic
Kelly's Bridge (Bristol County, Rhode Island)
Built 1885Lost Pratt through truss bridge over Palmer River on Main StreetReplaced by a new bridge
Kelly's Ford Bridge (Culpeper County, Virginia)
Built 1898Lost Pratt pony truss bridge over Rappahannock River on 620No longer exists; replaced in 2001
Kelso Creek Bridge (Knox County, Indiana)
Lost Through truss bridge over Kelso Creek on 2nd St.Replaced by a new bridge
Kemner Road Bridge (Wood County, Ohio)
Built by the Canton Bridge Co.; rehabilitated 1940Through truss bridge over South Branch Portage River on Kemner RoadDemolished for no reason. No replacement built.
Kendrew Bridge (St. Lawrence County, New York)
Built in 1878 by the Wrought Iron Bridge Company; removed sometime after 1926 when the state took it over.Lost Pratt through truss bridge over Oswegatchie RiverReplaced by a new bridge
Kenneth Road Bridge (Jackson County, Missouri)
Built 1905; replaced by a relocated Bailey Truss in 1996. Closed to all traffic due to damage from an overweight truck in 2008.Lost through truss bridge over Big Blue River on Kenneth Road in Kansas CityClosed to all traffic -- in process of being removed to be reused.
Kenny Creek Bridge (Pawnee County, Oklahoma)
Built 1911Pony truss bridge over Kenny Creek on E0580Open to traffic
Kent Park High Truss Bridge (Johnson County, Iowa)
Built in 1902 over Old Man's Creek at Maier Road near Iowa City, moved to this location in 2003 and after some alterations, put into place on the trail.Pratt through truss bridge on a trail at F.W. Kent County ParkOpen to pedestrians
Kent Park Pratt Half-Hip Pony Truss Bridge (Johnson County, Iowa)
Built in 1908 by the Iowa Bridge Company of Des Moines over Buck Creek in Pleasant Valley Township; relocated to Kent Park trail.Pony truss bridge on a trail at F.W. Kent County ParkOpen to pedestrians
Kent Road Bridge (Monroe County, Indiana)
Built ca. 1890; replaced 1999Lost through truss bridge over North Fork Salt Creek on Kent RoadReplaced by new bridge
Kent Trail - Grand River Bridge (Kent County, Michigan)
Built 1894; fixed in place 1907; railroad was abandoned 1975Pratt through truss bridge over Grand River on Kent Trail (formerly LS&MS RR)Open to pedestrians
Kerr's Crossing Bridge (Augusta County, Virginia)
Built 1899 by the Brackett Bridge Co.; closed to traffic 2010Pony truss bridge over Christians Creek on Route 907One lane bridge
Ketchum Road Bridge (Columbiana County, Ohio)
Abandoned pratt through truss bridge over Little Beaver Creek on Abandoned Ketchum RoadDerelict/abandoned
Ketterman Road Bridge (Preble County, Ohio)
Pony truss bridge over Aukerman Creek on TR 329Replaced by a new bridge
Kettle River Bridge (Pine County, Minnesota)
Built 1948Deck truss bridge over Kettle River on MN 123 at SandstoneOpen 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 pathPratt through truss bridge Open to pedestrians
Keya Paha River Bridge (Boyd County, Nebraska)
Built 1929; rehabilitated 1966Through truss bridge over Keya Paha River on 902 Road, 4 mi. south and 5 mi. east of NaperOpen to traffic
Keys Bridge (Washington County, Pennsylvania)
Built 1903Pony truss bridge over Raccoon Creek on TR 821Open 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 BaileyOpen to pedestrians only
Keystone Drive Bridge (Chelan County, Washington)
Built ca.1920Pratt pony truss bridge over Entiat River on Keystone DriveOpen to traffic
Keytesville Bridge (Chariton County, Missouri)
Built 1927; rehabilitated 1940Through truss bridge over Mussel Fork on US 24 at KeytesvilleClosed
Kiamichi River Bridge (Pushmataha County, Oklahoma)
Built 1916Through truss bridge over Kiamichi River on N4485 (6410C)Was closed at time of visit in 2007
Kickapoo Creek Bridge (Logan County, Illinois)
Built 1898Lost Through truss bridge over Kickapoo CreekNo longer exists. Replaced by new bridge 1980.
Kickapoo Creek Bridge (Lincoln County, Oklahoma)
Built 1914Pony truss bridge over Kickapoo Creek on N3410Open to traffic
Kidd Bridge (Beaverhead County, Montana)
Built 1909Pony truss bridge over Red Rock River on CR 257 (Ashbough Trail)Open to traffic
Kiger Hill Road Bridge (Greene County, Pennsylvania)
Built 1909; rehabilitated 1995Pony truss bridge over Shannon Run on TR 385Open 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 AvenueClosed to all traffic
Kilbourne Bridge (Delaware County, Ohio)
Lost Bridge over Alum Creek on SR 521Gone
Kilburn Bridge (Logan County, Arkansas)
Destroyed by flood in May 1990 and replacedLost through truss bridge over Petit Jean River on Thomas Road west of MagazineDestroyed by flooding
Kile Bridge (Tyler County, West Virginia)
Built 1901Through truss bridge over Middle Island Creek on County Route 10/1Intact but closed to all traffic
Kilgore Bridge (Buffalo County, Nebraska)
Built 1915Pony truss bridge over North Channel Platte River on Basway Strip AccessOpen to traffic
Killbuck Creek CR 500N Bridge (Delaware County, Indiana)
Built 1925; replaced 1991Lost pony truss bridge over Killbuck Creek on CR 500 NReplaced by new bridge
Killbuck Creek Rangeline Road Bridge (Madison County, Indiana)
Built ca.1920, replaced in 1989Lost 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-420NReplaced by new bridge
Kilmore Creek CR 500E Bridge (Clinton County, Indiana)
Built ca. 1890Lost Pratt through truss bridge over Kilmore Creek on County Road 500 EastReplaced by a new bridge
Kimmel Bridge (Jackson County, Illinois)
Built 1896; replaced 1992Lost through truss bridge over Beaucoup Creek on Kimmel Bridge Road (CH 15)Replaced by a new bridge
Kimpton Road Bridge (Monroe County, Michigan)
Built 1900Pony truss bridge over South Branch Macon Drain on Kimpton RoadRemoved To Be Dismantled and Stored For Future Restoration
Kincaid Creek Bridge (Pendleton County, Kentucky)
Built 1910Pony truss bridge over Kincaid Creek on Falmouth-Lenoxburg RoadBridge has been replaced
Kinderhook Creek Bridge (Columbia County, New York)
Built 1927Through truss bridge over Kinderhook Creek on NY 66 in Chatham CenterOpen to traffic
King Hill Bridge (Elmore County, Idaho)
Built 1910 Bridge relocated in 1998 New bridge constructed in 2001Lost Pratt through truss bridge over Snake River on Fas 3808Replaced by new bridge
King's Ford Bridge (Orange County, Indiana)
Built 1897; Replaced 1979Lost Pratt through truss bridge over Patoka River on Ethyl Road (CR 450 W)Replaced by new bridge
King's Mill Bridge (Walker County, Alabama)
Built 1900, Closed 2013Pratt through truss bridge over Lost Creek on Kings Mill RoadClosed
Kingfisher Creek Bridge (Kingfisher County, Oklahoma)
Built 1929 by the Virginia Bridge & Iron Co.; rehabilitated 1993Through truss bridge over Kingfisher Creek on E0760 Rd.Open to traffic
Kingfisher Crossing Bridge (Jefferson County, Indiana)
Built 1884 by Lomas Forge Bridge WorksPony truss bridge over Big Creek on E RoadBridge is being replaced with a slab. Apparently the trusses are being reused on it.
Kings Bridge (Polk County, Georgia)
Built 1924, closed sometime in the early '90'sAbandoned Pratt pony truss bridge over Dry Creek on Kings Bridge RoadAbandoned
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 9Abandoned
Kings Mill Bridge (Meigs County, Tennessee)
Built 1884 by the Champion Bridge Co.Pratt through truss bridge over Sewee Creek on Big Sewee RoadOpen to traffic
Kingston Ford Bridge (Washington County, Missouri)
Built 1885-86 at Lemay Ferry by the St. Louis Bridge & Iron Co.; relocated here in 1917Closed through truss bridge over Big River just northeast of Washington State ParkClosed to all traffic
Kingston Wagon Bridge (Green Lake County, Wisconsin)
Replaced 1992Lost Through truss bridge over Grand River on South Street at KingstonReplaced by a new bridge
Kinkaid Lake Bridge (Jackson County, Illinois)
Built 1935Lost through truss bridge over Kinkaid Lake on IL 151 south of AvaReplaced by a new bridge
Kinniconnick Creek KY 8 Bridge (Lewis County, Kentucky)
(Main design: Camelback through truss)Built ca. 1930Lost through truss bridge over Kinniconnick Creek on KY 8Replaced by a new bridge
Kinsman Road Overpass (Cuyahoga County, Ohio)
Built 1908Lost Pratt through truss bridge over Pennsylvania Railroad on Kinsman RoadReplaced by a new bridge
Kintner Road Bridge (Bucks County, Pennsylvania)
Built 1937Pony truss bridge over Gallows Run on Kintner RoadUnder construction for rehab
Kinzie Street Bridge (Cook County, Illinois)
Built 1909; rehabilitated 1999Bascule bridge over North Branch Chicago River on Kinzie Street in ChicagoOpen 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 projectNewly restored through truss bridge over New Channel West Fork Des Moines River on Brushy Bayou RoadCompletely rehabilitated and now open to traffic
Kirks Ford Road Bridge (Brown County, Indiana)
Built 1915Pony truss bridge over Middle Fork Salt Creek on Kirks Ford RoadOpen to traffic
Kishwaukee Road Bridge (Winnebago County, Illinois)
Replaced 1950Lost Pratt through truss bridge over Kishwaukee River on Kishwaukee RoadReplaced by new bridge
Kitchen's Bridge (Wabash County, Illinois)
Replaced 1981Lost Pratt through truss bridge over Bonpas Creek on 1150N/N 1350 Blvd.Replaced by new bridge
Kiwanis Bridge (Sioux County, Iowa)
Built Ca. 1895, possibly as a swing span, relocated here 1911, converted to pedestrian use by the Kiwanis ClubTwo-span through truss bridge over Rock River on Kiwians TrailOpen 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 1998Pony truss bridge over Willow Creek in Kiwanis Park in CoralvilleOpen to pedestrians only
KJRY - Copperas Creek Bridge (Fulton County, Illinois)
Built 1892Pratt through truss bridge over Copperas Creek on Toledo Peoria and Western RailwayOpen to traffic
KJRY - Hamilton Slough Bridge (Hancock County, Illinois)
Built 1890Pratt through truss bridge over Hamilton Slough on Keokuk Junction RailwayOpen to traffic
KJRY - Spoon River Bridge (Fulton County, Illinois)
Built 1890; collapsed Sept. 16, 2013; replaced with deck girder spans and reopened May 21, 2014Lost Pratt through truss bridge over Spoon River on Peoria & Western RailwayCollapsed 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 WooldridgeIntact 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 FallsOpen 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 84Relocated To Old Town Creek Preserve
Knaggs Bridge (Shiawassee County, Michigan)
Built 1893 by the King Bridge Co.; rehabilitated 1943; replaced 1988Lost Pratt through truss bridge over Shiawassee River on Cole Road near BancroftReplaced by new bridge
Knecht Bridge (Columbia County, Pennsylvania)
Built in 1893 by King Bridge Co.; replaced 1997Lost through truss bridge over Catawissa Creek on TR 413Replaced by new bridge
Knights Landing Bridge (1902) (Yolo County, California)
Built 1902; Road section removed ca. 1933; Removed ?Lost Pratt through truss bridge over Sacramento River on Road & Southern Pacific RailroadReplaced by a new bridge
Knob Creek Gun Range Bridge (Bullitt County, Kentucky)
Lost Bedstead Pratt pony truss bridge over Knob Creek on Ritchey Ln (KGR Driveway)Destroyed by tractor trailer
Knob Road Bridge (Walworth County, Wisconsin)
Abandoned pratt through truss bridge over White River on Knob Road (Abandoned)Derelict/abandoned
Knoebels Amusement Park Miniature Railroad Bridge (Columbia County, Pennsylvania)
Built 1887 nearby; dismantled 1987 and rebuilt at present sitePony truss bridge over South Branch Roaring Creek on RailroadOpen to paying riders of amusement park train
Knoll Ridge Trail Bridge (Madison County, Iowa)
Built 1948Through truss bridge over Middle River on Knoll Ridge TrailOpen 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 LohmanRemoved to make room for a replacement bridge in 2004
Koetter Ford Bridge (Franklin County, Indiana)
Built 1927; replaced 2000Lost through truss bridge over Salt Creek on Bullfork RoadReplaced by new bridge
Kokosing River TR 122 (Chipps Rd.) Bridge (Morrow County, Ohio)
Built 1874 by the Wrought Iron Bridge Co.; rehabilitated 1955Pony truss bridge over Kokosing River on TR 122 (Chipps Rd.)Closed to all traffic
Kokosing River-TR 423 Bridge (Coshocton County, Ohio)
Built 1902; Rehabilitated 1987; Removed 2000Lost Pratt Through truss bridge over Kokosing River on TR 423Removed but not replaced
Koniska Bridge (McLeod County, Minnesota)
Built 1904Abandoned Pratt through truss bridge over South Fork Crow River on RoadDerelict/abandoned
Kooi Bridge (Sheridan County, Wyoming)
Built 1913, replaced 2003Lost Pratt pony truss bridge over Tongue River on Kooi RoadReplaced by a new bridge
Koss Bridge (Marinette County, Wisconsin)
Built 1894 by Wisc & Mich Railroad; converted to road use 1938; Replaced 1991Lost Pratt through truss bridge over Menomonie River on Marinette CTH JJ - Menomonee CTH S-4 (Shakey Lakes Road) in Town of WagnerReplaced 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 1904/05Through truss bridge over White River on a pedestrian pathOpen to pedestrians only
Krape Park Demeter Drive Bridge (Stephenson County, Illinois)
Built ca. 1920Pony truss bridge over Yellow Creek on South Demeter Drive at Krape Park in FreeportOpen to pedestrians only
Kreitz Road Bridge (Crawford County, Pennsylvania)
Built 1895 by Penn Bridge Co.; demolished 2010Lost 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.
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