There are 8,016 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.


Oak Grove Road Bridge (Clarke County, Mississippi)
Bypassed in 1986
Abandoned through truss bridge over Okatibbee Creek on CR 379 (Oak Grove Road)
Abandoned

Oak Hill Cemetery Bridge (Christian County, Illinois)
Built ca. 1910 by the Vincennes Bridge Company, replaced in 1987
Lost Through truss bridge over South Fork Sangamon River on Cemetary Road
Replaced by a new bridge

Oak Ridge Bridge (Nelson County, Virginia)
Built 1882
Pratt through truss bridge over Norfolk Southern Railway on Wilson Road (Route 653)
Open to traffic

Oak Street Bridge (Clayton County, Iowa)
Built 1915
Pony truss bridge over Nagle Creek on Oak Street in Volga
Open to traffic

Oak Street Bridge (Hardin County, Iowa)
Built 1898, Replaced 1928
Lost Pratt through truss bridge over Iowa River on Oak Street
Replaced by a new bridge

Oakland Mills Bridge (Henry County, Iowa)
(Main design: Pratt through truss)
Built in 1876; converted to pedestrian bridge in the 1970s and became part of the state park
Pratt through truss bridge over Skunk River on Pedestrian trail (formerly county road) at Oakland Mills State Park
Open to pedestrians

Oakman Parrish Road Bridge (Walker County, Alabama)
Built 1920
Pratt through truss bridge over Lost Creek on Oakman Parrish Road
Closed to all traffic

Oaks Creek Bridge (Otsego County, New York)
Built ca.1880 by the Wrought Iron Bridge Company
Through truss bridge over Oaks Creek on Lower Toddsville Road
Closed to all traffic

Oatsville Road Bridge (Gibson County, Indiana)
Built 1925; replaced 1999
Lost through truss bridge over New Patoka River on Oatsville Road
Replaced by new bridge

Obed Bridge (Navajo County, Arizona)
Built 1912; rehabilitated 1978, replaced 2010
Lost Pratt pony truss bridge over Little Colorado River on Obed Road
Replaced by new bridge

Obion Creek KY 58 Bridge (Hickman County, Kentucky)
Built 1928
Pony truss bridge over Obion Creek on KY 58
Open to traffic

Obion River Bridge (Obion County, Tennessee)
Built 1928 and operated as toll bridge until 1939
Through truss bridge over Obion River on old TN 211 at Obion
Closed to all traffic about 1990

Obion River Bridge (Dyer County, Tennessee)
Built 1948; rehabilitated 1993
Through truss bridge over Obion River on TN 104
Open to traffic

OC&E State Trail - USRS "A" Canal Bridge (Klamath County, Oregon)
Built 1898, 1917 Relocated to Klamath Falls
Pratt through truss bridge over USRS "A" Canal on Oregon, California & Eastern Railroad Trail
Open to pedestrians

Ocheydan River Bridge (Clay County, Iowa)
(Main design: Warren pony truss with alternating verticals)
Built ca. 1900; Replaced 2015
Warren pony truss bridge over Ocheyedan River on 300th Street
Center pier between pony's - Cap rotted out - Closed after last inspection

Ocmulgee River Bridge (Pulaski County, Georgia)
Built in 1921
Lost Pratt through truss bridge over Ocmulgee River on Route 341 Golden Isle Parkway
No longer exists

Oconee River Bridge (Laurens County, Georgia)
(Main design: Pratt through truss)
Built 1923; Replaced 1952
Lost Pratt through truss swing bridge over Oconee River on Jackson Street
No longer exists

OCSR - Nehalem River Bridge (Tillamook County, Oregon)
Originally built for the Central Pacific over the Truckee River at Verdi, California.
Through truss bridge over Nehalem River on Port of Tillamook Bay Railroad
Open

Oelke Road Bridge (Monroe County, Michigan)
Built 1899
Pony truss bridge over North Macon Creek on Oelke Road
Closed to all traffic

Offield Creek CR 325W Bridge (Montgomery County, Indiana)
Built 1915; replaced 1991
Lost through truss bridge over Offield Creek on County Road 325 West
Replaced by new bridge

Offield Creek CR 400W Bridge (Montgomery County, Indiana)
Built 1914; replaced 1999
Lost through truss bridge over Offield Creek on County Road 400 West
Replaced by new bridge

Ogden Street Bridge (Older) (Marinette County, Wisconsin)
Lost Pratt through truss bridge over Menominee River on Ogden Street /1 Street
Replaced by a new bridge

Ogeese Creek Bridge (Neosho County, Kansas)
Built 1905 by A.M. Blodgett, Kansas City, MO.
Lost pony truss bridge over a branch of Neosho River, 0.5 mi. west and 3.9 mi. south of Erie
Destroyed by severe storm.

Ogle Creek Bridge (Alleghany County, Virginia)
Built 1932
Through truss bridge over Ogle Creek on Route 660
Abandoned with deck missing

OHCR - Muskingum River Bridge (Conesville) (Coshocton County, Ohio)
Through truss bridge over Muskingum River on Norfolk & Western RR in Conesville
Open to traffic

Ohio Edison Bridge (Marshall County, West Virginia)
Pratt through truss bridge over Ohio River on Pedestrian Path


Ohio River Back Channel Bridge (Pleasants County, West Virginia)
Built 1928
Through truss bridge over Ohio River Back Channel on CR 2/10 in St. Marys
Open to traffic

Ohio Street Bridge (Vanderburgh County, Indiana)
Built 1891 by the Pittsburgh Bridge Co.
Through truss bridge over Pigeon Creek on Ohio Street
Open to pedestrians

Ohl Street Bridge (Mercer County, Pennsylvania)
Built 1909 by Canton Bridge Co.; rehabilitated 1980
Through truss bridge over Shenango River on Ohl Street in Greenville
Closed to all traffic; awaiting replacement

Oil Creek Bridge (Venango County, Pennsylvania)
Built 1888 by Massillon Bridge Co.
Through truss bridge over Oil Creek on TR 635 (Miller Farm Road)
Open to traffic

Okabena Bridge (Jackson County, Minnesota)
Built 1936; replaced 1998
Lost through truss bridge over Jack Creek on CSAH 9 at Okabena
Replaced by a modern bridge

Okabena Creek Bridge (Jackson County, Minnesota)
Built 1905; relocated to this spot and rehabilitated 1938; closed to traffic in 1990
Pony truss bridge over Okabena Creek on CR 187
Closed to all traffic

Okamanpedan State Park Bridge (Emmet County, Iowa)
Built 1914; rehabilitated 1923
Pony truss bridge over East Fork Des Moines River on Tuttle Lake Road at Okamanpedan State Park
Open to one-lane traffic

Okatibbee Creek CR 378 Bridge (Clarke County, Mississippi)
Built 1951
Pratt through truss bridge over Okatibbee Creek on CR 378
Intact but closed to all traffic

Old 708 Road Bridge (Richardson County, Nebraska)
Abandoned pratt through truss bridge over Muddy Creek on an abandoned section of county road 708
Abandoned

Old Airport Bridge (Williamson County, Texas)
Built 1922; Bypassed by new bridge in 1987
Through truss bridge over Berry Creek on CR 190 (Airport Rd) in Georgetown
Closed to all traffic

Old Alabama Bridge (Bartow County, Georgia)
Replaced by new bridge in 1979
Abandoned pratt pony truss bridge over Pumpkinvine Creek on Old alignment of Old Alabama Road (Future SR 113).
No longer exists

Old Alton Bridge (Denton County, Texas)
Built 1884 by the King Iron and Bridge Co.; later bypassed
Through truss bridge over Hickory Creek on Old Alton Road in Denton
Open to pedestrians only

Old Alton Road Bridge (Oregon County, Missouri)
Built 1914 by the East St. Louis Bridge Co.; demolished 2008
Lost through truss bridge over Warm Fork Spring River on the old Thayer-Alton Road near Thayer
Removed Summer 2008 and sold for scrap

Old Appleton Bridge (Cape Girardeau County, Missouri)
(Main design: Pratt through truss)
Built 1879 by H.W. Sebastian & Co. of St. Louis; washed away by flash flood on December 3, 1982; reconstructed 2005
Wrought-iron through truss bridge over Apple Creek on Main Street in Old Appleton
Open to pedestrians and bicyclists only

Old Barn Bridge (Fillmore County, Minnesota)
Built 1914
Through truss bridge over Mill Pond South Branch Root on Heron Road
Closed to all traffic

Old Belle Isle Bridge (Richmond, Virginia)
Abandoned pratt through truss bridge over James River on an abandoned service road for the Old Dominion Iron and Steel Corp.
Only one span on the southern shore of the James River remains on the grounds of the Belle Isle Park

Old Birmingham & Southeastern Railway Tallapoosa River Bridge (Macon County, Alabama)
Abandoned pratt through truss bridge over Tallapoosa River on former Tallassee and Montgomery RR
Abandoned

Old Bonne Terre Road Bridge (St. Francois County, Missouri)
Built ca. 1910; replaced in 1982
Lost bridge over Big River between Desloge and Bonne Terre on Old Bonne Terre Road
Replaced by a modern bridge

Old Brazos River Bridge (Falls County, Texas)
Removed 1962
Lost Pratt through truss bridge over Brazos River
Replaced by a new bridge

Old Bridge (Allen County, Kentucky)
(Main design: Pratt through truss)
Abandoned pratt through truss bridge over Trammel Creek on an abandoned section of Old Bridge Road
Abandoned

Old Bristol Highway Bridge (Carter County, Tennessee)
Built 1927-29
lost three-span Pratt through truss bridge over Watauga River on State Highway 400 (Old U.S. 19-E) in Elizabethton
Demolished

Old Caesar Creek Gorge Bridge (Warren County, Ohio)
Built 1921
Pratt pony truss bridge over outlet for Caesar Creek Lake on Gorge Trail Loop/ Caesar Creek Gorge Access Road
Open to pedestrians only

Old Camp Nine Footbridge (Calaveras County, California)
Plausibly built 1890-1930
Abandoned Pratt through truss bridge over Stanislaus River on Camp Nine Footpath
Abandoned with no deck

Old Cane River Lake Bridge (Natchitoches Parish, Louisiana)
Built 1912; replaced 1980
Pratt through truss bridge over Cane River Lake on former LA 119
Intact but closed to all traffic

Old Carrol Road Bridge (Clark County, Indiana)
Bypassed 1976
Abandoned half hip pratt pony truss bridge over Branch of Fourteen Mile Creek on a former alignment of Carroll Road
Bypassed by new bridge

Old Cascade Highway Bridge (King County, Washington)
Built 1922
Pratt through truss bridge over Miller River on Old Cascade Highway
Closed due to flood damage

Old Cedar Avenue Bridge (Dakota County, Minnesota)
(Main design: Warren through truss with all verticals)
Built 1890, removed in 1980 shortly after the current bridge was built.
Lost Through truss bridge over Minnesota River on Cedar Avneue
Removed

Old Clairton Road Bridge (Allegheny County, Pennsylvania)
Built ca. 1886; rehabilitated 1967; removed 2002
Lost wrought-iron through truss bridge over CSX Railroad on Old Clairton Road
Removed but not replaced

Old Clifton Mills Road Bridge (Preston County, West Virginia)
Built 1884 by the Wrought Iron Bridge Co.
Through truss bridge over Big Sandy Creek on CR 8/4
Open to traffic

Old CNTP - New River Bridge (Scott County, Tennessee)
Built in 1879 by the Cincinnati, New Orleans and Texas Pacific Railway, for its Cincinnati Southern Line (later sold to Norfolk Southern Railway)
Abandoned Pratt deck truss bridge over New River once carried Cincinnati, New Orleans and Texas Pacific Railway's Cincinnati Southern Railroad (later Norfolk Southern), before being bypassed
Abandoned

Old Co Rd 37 Bridge (Macon County, Alabama)
Abandoned bridge over Uphapee Creek on a closed off section of Co Rd 37
Closed to all traffic

Old Co Rd 61 Bridge (Franklin County, Alabama)
Built ca. 1920 and closed to traffic in 1984.
Abandoned Pratt through truss bridge over Cedar Creek on Maldne Rd (formerly Co Rd 61)
Abandoned

Old Co. Rd. 41 Bridge (Geneva County, Alabama)
Abandoned when the current CR 41 bridge was built in 1958.
Abandoned pratt through truss bridge over Hurricane Creek on a former alignment of Co. Rd. 41
Abandoned

Old Confederate Bridge (Thomas County, Georgia)
Abandoned through truss bridge over Ochlockonee River
Abandoned

Old County Rd 59 Bridge (Dale County, Alabama)
Abandoned pratt pony truss bridge over Choctawhatchee River on an abandoned alignment of AL 56
Derelict/abandoned

Old County Road 127 Through Truss (Olmsted County, Minnesota)

Private Road

Old County Road Bridge (Richardson County, Nebraska)
Pratt through truss bridge over Winnebago Creek on 709 Road
Open to traffic but barely used

Old Covington Bridge (Washington County, Illinois)
(Main design: Pratt through truss)
Lost through truss bridge with wooden deck, replaced by a modern bridge in the 1980s.
Lost pratt through truss bridge over Kaskaskia River on Covington Road
Replaced by new beam bridge at current site

Old CR 146 Pony Truss (Comanche County, Texas)
Pratt pony truss bridge over unnamed creek on road
Open to traffic

Old CR 198 Bridge (Coryell County, Texas)
Abandoned through truss bridge over Leon River on old road alignment
Derelict/abandoned

Old CR 400 N Bridge (Hancock County, Indiana)
Removed from county bridge inventory sometime prior to 1979.
Pratt pony truss bridge over Buck Creek on a closed off section of CR 400 N
May be used occasionally by Mt. Comfort Airport personnel

Old CR408 Pony Truss (Eastland County, Texas)
Abandoned pratt pony truss bridge over unnamed creek on road
Derelict/abandoned

Old Danforth Street Bridge (Middlesex County, Massachusetts)
Built 1890 by Dean & Westbrook; bypassed 1982
Pratt pony truss bridge on an old alignment of Danforth Street over Sudbury River
Open to pedestrians

Old Deschutes Road Bridge (Shasta County, California)
Pier encased in concrete 1925; Converted to road use 1944 ; Replaced 1970
Lost Pratt through truss bridge over Sacramento River on Deschutes Road
Replaced by a new bridge

Old Dobbs Ford Bridge (Bradley County, Tennessee)
Built 1878, moved to the present site in 1990
Pratt pony truss bridge over Candies Creek on golf cart track
Closed to all traffic

Old Dogtown Road Bridge (Marshall County, Kentucky)
Built 1919
Pratt through truss bridge over East Fork of Clarks River on Old Dogtown Road
Intact but closed to all traffic

Old Duncan Grade Road Bridge (Sonoma County, California)
Built 1924
Pratt through truss bridge over Austin Creek on Old Duncans Grd Road
Intact but closed to all traffic

Old East Street Bridge (Champaign County, Illinois)
Built 1912
Through truss bridge over Sangamon River on a pedestrian trail (former East Street) in Mahomet
Open to pedestrians

Old East Walnut Street Bridge (Boone County, Missouri)
Pratt pony truss bridge over Hinkson Creek on Old East Walnut Street
Closed to all traffic

Old Federal Road Bridge (Murray County, Georgia)
Built 1918
Pony truss bridge over Mill Creek on Old Federal Road in Eton
Open

Old Federal Road Bridge (McMinn County, Tennessee)
Built around 1900
Abandoned Pratt pony truss bridge over Cane Creek on abandoned section of the Old Federal Road (predecessor of US 411)
Abandoned on private property

Old Forge Bridge (York County, Pennsylvania)
Built 1887; rehabilitated ca. 1975
Through truss bridge over Yellow Breeches Creek on TR 968 (Sheepford Road)
Open to traffic

Old Forge Bridge (Essex County, New York)
Built 1901 by Canton Bridge Co; Closed c.1990
Pin connected Pratt pony truss bridge over Boquet River on Old Forge Road
Intact but closed to all traffic

Old Galena Trail Plum River Bridge (Carroll County, Illinois)
Built 1955; rehabilitated 1985
Pony truss bridge over Plum River on North Old Galena Trail
Open to traffic

Old Grade Road Bridge (Adair County, Missouri)
Built 1924; replaced 1989
Lost skewed through truss bridge over North Fork Salt River (Brashear Ditch) on CR 285 (Old Grade Road) south of Brashear
Replaced by a concrete bridge

Old Hackensack Road Bridge (Dutchess County, New York)
Pratt pony truss bridge over Green's Pond Outlet on Old North Hackensack Road Alignment(?)
Abandoned

Old Hadley Ferry Rd Bridge (Grady County, Georgia)
Abandoned pratt pony truss bridge over Ochlocknee River on an abandoned section of Cr 154
Abandoned

Old Hagerstown Road Bridge (Frederick County, Maryland)
Built 1920; rehabilitated 1978; relocated to local golf course 1994
Pratt pony truss bridge originally over Little Catoctin Creek on Old Hagerstown Road
Relocated for reuse

Old Handley Ederville Road Bridge (Tarrant County, Texas)
Abandoned pratt pony truss bridge over an old channel of the West Fork Trinity River on an old alignment of Handley Ederville Road
Abandoned

Old Harmony Church Rd Bridge (Robertson County, Tennessee)
Pratt through truss bridge over Sulphur Fork Creek on Old Harmony Church Rd (old alignment of TN 76)
Intact but closed to all traffic

Old Hedge Lane Bridge (Miami County, Kansas)
(Main design: Parker through truss)
Replaced by new bridge, but never removed. Thus far, no records of this bridge have been located.
Abandoned Parker through truss bridge over Marais des Cygnes River on Abandoned road (formerly Hedge Lane)
Abandoned

Old Henry River Road Bridge (Burke County, North Carolina)
Built 1912
Lost Pratt deck truss bridge over Henry River on Henry River Road (Old Alignment)
Replaced by new bridge

Old Highway 53 Bridge (Oldham County, Kentucky)
Abandoned pony truss bridge over Harrods Creek on Old highway 53
Abandoned

Old Hill Bridge CR 600 S (Clay County, Indiana)
Built in 1899 by the Indiana Bridge Company; replaced 1992
Lost through truss bridge over Eel River on CR 600 S
Replaced by new bridge

Old Hughey Road Bridge (Lincoln County, Tennessee)
Abandoned pony truss bridge on Old Hughey Road
Abandoned

Old IN 18 Pipe Creek Bridge (Grant County, Indiana)
Built ca. 1900; replaced 1998
Lost pony truss bridge over Pipe Creek on Old IN 18
Replaced by new bridge

Old IN 62 Bridge (Clark County, Indiana)
Built 1927
Abandoned pratt pony truss bridge over Fourteen Mile Creek on an old alignment of IN 62 in Charlestown State Park
Abandoned

Old Irish Hollow Road Bridge (Jo Daviess County, Illinois)
Built ca 1922; Bypassed 1983
Pony truss bridge over Irish Hollow Creek on Former Alignment of Irish Hollow Rd
Closed to all traffic

Old Jones Ford Bridge (Union County, South Carolina)
Abandoned pratt through truss bridge over Enoree River on Old State Road 44-22
Abandoned

Old Katy Bridge (Geary County, Kansas)
Built 1895 by the Pencoyd Bridge & Construction Co. Abutments rehabilitated in 1908 and 1913. Opened to vehicular traffic in 1974.
Through truss bridge over Lyon Creek on Otter Creek Road, just southeast of Wreford
Open to traffic

Old Keokuk-Hamilton Bridge (Lee County, Iowa)
Built in 1917, Roadway deck Service Discontinued 1985
Through truss bridge over Mississippi River on Keokuk Junction Railway
Open to rail traffic only. The upper deck on the Iowa side has been converted to an observation deck; the upper deck on the Illinois side is closed to traffic. Roadway traffic has been shifted to the 1985 beam span to the southwest of the bridge

Old KY 1 Bridge (Carter County, Kentucky)
Former KY Rt. 1 bridge, abandoned when U.S. 60 realigned through the area.
Abandoned truss bridge over Little Sandy River on Rt. 1
Derelict/abandoned

Old KY 1657 Bridge (Pendleton County, Kentucky)
Lost 2012
Pratt through truss bridge over south fork grassy creek on old Ky 1657
Collapsed

Old La Grange Road Bridge (Stanislaus County, California)
Through truss bridge over Stanislaus River
Open to pedestrians