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 1962
Pratt 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 Company
Through truss bridge over Sugar Creek on CR 550 West
Lost

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 2014
Through truss bridge over North Skunk River on Ridge Road in Kellogg
Demolished.

Kelly Bridge (Indiana County, Pennsylvania)
Built 1904
Pony truss bridge over South Branch Plum Creek
Open to traffic

Kelly Creek Bridge (Ford County, Illinois)
Built ca. 1895
Lost Through truss bridge over Kelly Creek on E3000N Rd
Removed

Kelly Ford Bridge (Vernon County, Missouri)
Built 1891 by the Chicago Bridge Co.; replaced 1996
Lost through truss bridge over Clear Creek on CR 466
Replaced by new bridge

Kelly Road Bridge (Macoupin County, Illinois)
Built 1917; made obsolete by a new bridge on Shipman Road in 1935
Pony truss bridge over Coop Branch on Kelly Road (TR 166), just off Shipman Road
Open to one-lane traffic

Kelly's Bridge (Bristol County, Rhode Island)
Built 1885
Lost Pratt through truss bridge over Palmer River on Main Street
Replaced by a new bridge

Kelly's Ford Bridge (Culpeper County, Virginia)
Built 1898
Lost Pratt pony truss bridge over Rappahannock River on 620
No 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 1940
Through truss bridge over South Branch Portage River on Kemner Road
Demolished 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 River
Replaced by a new bridge

Kennebec Valley Trail - Kennebec River Bridge (Somerset County, Maine)
Pratt through truss bridge over Kennebec River on Kennebec Valley Trail
Closed to highway traffic, open for trail use

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 City
Closed to all traffic -- in process of being removed to be reused.

Kenny Creek Bridge (Pawnee County, Oklahoma)
Built 1911
Pony truss bridge over Kenny Creek on E0580
Open to traffic

Kent Park Half-Hip Pony Truss Bridge (Johnson County, Iowa)
Pony truss bridge on a trail at F.W. Kent County Park
Open to pedestrians

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 Park
Open 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 Park
Open to pedestrians

Kent Road Bridge (Monroe County, Indiana)
Built ca. 1890; replaced 1999
Lost through truss bridge over North Fork Salt Creek on Kent Road
Replaced by new bridge

Kent Trail - Grand River Bridge (Kent County, Michigan)
Built 1894; fixed in place 1907; railroad was abandoned 1975
Pratt 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 2010
Pony truss bridge over Christians Creek on Route 907
One lane bridge

Ketchum Road Bridge (Columbiana County, Ohio)
Abandoned pratt through truss bridge over Little Beaver Creek on Abandoned Ketchum Road
Derelict/abandoned

Ketterman Road Bridge (Preble County, Ohio)
Pony truss bridge over Aukerman Creek on TR 329
Replaced by a new bridge

Ketterman Road Tucker Branch Bridge (Jackson County, Missouri)
Abandoned bedstead Pratt pony truss bridge over Tucker Branch on Ketterman Rd
Derelict/abandoned

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 902 Road, 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

Keystone Drive Bridge (Chelan County, Washington)
Built ca.1920
Pratt pony truss bridge over Entiat River on Keystone Drive
Open to traffic

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

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 (Logan County, Illinois)
Built 1898
Lost Through truss bridge over Kickapoo Creek
No longer exists. Replaced by new bridge 1980.

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

Kile Bridge (Tyler County, West Virginia)
Built 1901
Through truss bridge over Middle Island Creek on County Route 10/1
Intact but closed to all traffic

Kilgore Bridge (Buffalo County, Nebraska)
Built 1915
Pony 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

Kimmel Bridge (Jackson County, Illinois)
Built 1896; replaced 1992
Lost through truss bridge over Beaucoup Creek on Kimmel Bridge Road (CH 15)
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 in Chatham Center
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

King's Ford Bridge (Orange County, Indiana)
Built 1897; Replaced 1979
Lost 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 2013
Pratt through truss bridge over Lost Creek on Kings Mill Road
Closed

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.

Kings Bridge (Polk County, Georgia)
Built 1924, closed sometime in the early '90's
Abandoned Pratt pony truss bridge over Dry 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
Lost through truss bridge over Kinniconnick Creek on KY 8
Replaced by a new bridge

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

Kishwaukee Road Bridge (Winnebago County, Illinois)
Replaced 1950
Lost Pratt through truss bridge over Kishwaukee River on Kishwaukee Road
Replaced by new bridge

Kitchen's Bridge (Wabash County, Illinois)
Replaced 1981
Lost 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 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

Kiwanis Train - Boggy Creek Bridge (Garfield County, Oklahoma)
Pony truss bridge over Boggy Creek on Kiwanis Train in Enid
Open to traffic

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.

Klinger Road - Stillwater River Bridge (Miami County, Ohio)
Lost Through truss bridge over Stillwater River on Klinger Road
Replaced by a new bridge in 1966

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 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 Railroad
Replaced 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 site
Pony truss bridge over South Branch Roaring Creek on Railroad
Open to paying riders of amusement park train

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.)
Demolished and replaced.

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.)
Replaced by a new bridge

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

Kokosing River-TR 423 Bridge (Coshocton County, Ohio)
Built 1902; Rehabilitated 1987; Removed 2000
Lost Pratt Through truss bridge over Kokosing River on TR 423
Removed but not replaced

Koniska Bridge (McLeod County, Minnesota)
Built 1904
Abandoned Pratt through truss bridge over South Fork Crow River on Road
Derelict/abandoned

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 1904/05
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.


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