There are 8,355 bridges in this category · Only showing 6,325 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.
Old North Park Steet Bridge (Kent County, Michigan)
Built 1904 as part of a five span bridge (North Park Bridge) over the Grand River, N.P.B. closed and was replaced in 1988, however, one span was saved and relocated to current locationPratt through truss bridge over a pond on a pedestrian path in Riverside ParkOpen to pedestrians
Old Ohio 123 Bridge (Warren County, Ohio)
Built in 1880 by the Kellogg and Maurice Bridge Co.Pratt through truss bridge over Abandoned Pennsylvania Railroad Grade on Old Ohio 123Intact but closed to all traffic
Old PA281 Youghiogheny River Bridge (Somerset County, Pennsylvania)
Built 1896, load-bearing girders added 1948, trusses removed from girders 1998Lost Pratt through truss bridge over Youghiogheny River on PA 281Removed but not replaced
Old Park Road Kokomo Creek bridge (Howard County, Indiana)
Park Road today has a bridge West of here over Kokomo Creek, but in the early 20th Century it travelled down a different alignment and over this structure. When nearby steel mill expanded, old road was used for back entrance into plant.Lost Bedstead Pratt pony truss bridge over Kokomo Creek on Former alignment of Park Road and later used as South gate entrance for former Continental Steel plant.Lost
Old Pearl Street Bridge (McHenry County, Illinois)
Built 1881 over Fox River on Pearl Street in McHenry IL, relocated to Terra Cotta Industries Nov. 1976, two of three original sections in storageThrough truss bridge over a branch of Fox River on Pedestrian pathOpen to pedestrians only
Old Pine Street Bridge (Niagara County, New York)
Replaced 1901Lost Pratt deck truss bridge over Erie Canal on Pine StreetReplaced by a new bridge
Old Pinnacle Road Bridge (Cheatham County, Tennessee)
The Nashville, Chattanooga and St. Louis Railroad installed the two truss spans in 1898 and the Virginia Bridge and Iron Co. fabricated the plate girder in 1911. In 1922 the County acquired the bridge for a roadway.Through truss bridge over Harpeth River in Kingston SpringsClosed to all traffic
Old Plattsmouth Railroad Bridge (Cass County, Nebraska)
(Main design: Whipple through truss)Built 1880 under the direction of George S. Morison; replaced 1903Lost Whipple through truss bridge over Missouri RiverReplaced by new bridge
Old Pocahontas Bridge (Randolph County, Arkansas)
Replaced by new through truss bridge in 1934Lost swing through truss bridge over Black River on Old US 67No longer exists
Old Rainbow Lake Bridge (Spartanburg County, South Carolina)
Abandoned pratt through truss bridge over Rainbow Lake on Rainbow Lake RoadAbandoned
Old Rankin Bridge (Cocke County, Tennessee)
6 span Pratt through truss design bridge over French Broad River on Rankin RoadClosed to all traffic
Old Revilee Creek Bridge (Logan County, Arkansas)
Pony Truss bridge over Revilee Creek on hwy. 10 replaced by Concrete Tee Beam Bridge in 1930Lost Pony truss bridge over Reville Creek on State Hwy. 10 EastReplaced by new bridge
Old River Bridge (Saline County, Arkansas)
Built 1899 by the Youngstown Bridge Co. of Youngstown, Ohio; closed to traffic in 1974Two-span through truss bridge over Saline River on the Old Military Road near BentonAbandoned with portions of deck missing
Old River Bridge (San Joaquin County, California)
(Main design: Howe through truss)Built 1915; rehabilitated 1978Swing bridge over Old River on CA 4 in Discovery BayOpen to traffic
Old River Road Through Truss (Bosque County, Texas)
Built 1915;Pratt through truss bridge over North Bosque River on Old road alignmentIntact but closed to all traffic
Old Rocky Road Bridge (Jo Daviess County, Illinois)
Through truss bridge over East Fork of Galena River on Abandoned Rocky RoadDerelict/abandoned
Old Rodgers Lane Bridge (Lincoln County, Tennessee)
Pratt pony truss bridge over Walker Creek on Old Rodgers LnOpen to traffic
Old Rogana Road Bridge (Sumner County, Tennessee)
Lost Pratt through truss bridge over Bledsoe Creek on Old Rogana RoadNo longer exists
Old Route 11 Marble River Bridge (Clinton County, New York)
Route 11 re-aligned 1936Half-hip Pratt pony truss bridge over Marble River on Private Driveway (former alignment of U.S. 11)Open to pedestrians only
Old Route 61 Wolf Creek Bridge (Bland County, Virginia)
Built 1890 as a railroad bridge; Converted to highway bridge in 1946 when rail line discontinued; closed to vehicular traffic in 1987Pratt through truss bridge over Wolf Creek on former Route 61Open to pedestrians
Old Rt. 68 Licking River Bridge (Nicholas County, Kentucky)
Built 19172-span Through truss bridge over Licking River on Old US 68Closed to vehicular traffic, but passable by pedestrians.
Old Spring River Bridge (Lawrence County, Arkansas)
Replaced 1937Lost Pratt through truss bridge over Spring River & Railroad on US 62Replaced by new bridge
Old Startex Bridge (Spartanburg County, South Carolina)
Abandoned when new adjacent bridge built in 1989.Abandoned truss bridge over Middle Tyger RiverDerelict/abandoned
Old State Road Bridge (Clinton County, Illinois)
Built ca. 1930Pony truss bridge over Beaver Creek on Old State Road (TR 109)Open to one-lane traffic with a 6 ton weight limit
Old State Road Bridge (Essex County, New York)
Built circa 1890; rehabilitated 1975; Closed 2004Pin connected Pratt pony truss bridge over AuSable River on Old State RoadClosed to all traffic
Old Stewart Creek Bridge (Rutherford County, Tennessee)
Was first iron bridge built in Rutherford County, Orginally crossed Stewarts creek between Murfreesboro and Smyra on the turnpikePony truss bridge over lyttle creek on pedestrian trailOpen to pedestrians
Old Stone Fort Bridge (Coffee County, Tennessee)
Built 1906 by the Joliet Bridge Co. at the Dabbs Ford over the Elk River; bridge relocated to present location in 1971, piers rehabilitated 2009Pratt through truss bridge over Duck River on County Road B-188 (Campground Road) in ManchesterOpen to traffic
Old Sublimity Bridge (Laurel County, Kentucky)
Built ca. 1930Pratt pony truss bridge over Rockcastle River on a pedestrian pathOpen to pedestrians
Old Survey Road Through Truss (Cooke County, Texas)
Built 1893; Relocated to Parkhill Park in Callisburg, Texas in 2004Pratt through truss bridge formerly over Sandy Creek on Survey Road now in parkReplaced by a new bridge and relocated
Old Taylorsville Road Bridge (Jefferson County, Kentucky)
Abandoned pony truss bridge over Pope Lick Run on Old Taylorsville road in LouisvilleAbandoned
Old Teter Bridge (Furnas County, Nebraska)
Pratt through truss bridge over Medicine Creek on a pedestrian/golf cart trailOpen to pedestrians and golf carts
Old Third Street Bridge (Cass County, Indiana)
Replaced 1917Lost through truss bridge over Eel River on Third Street in LogansportReplaced by new bridge
Old Town Bridge #2 (Gallatin County, Montana)
Built 1894; rehabilitated 1984Through truss bridge over Jefferson River on CR 201Open to traffic
Old Town Bridge #3 (Gallatin County, Montana)
Built 1894Through truss bridge over Jefferson River on CR 419Open to traffic
Old Trackville Road Bridge (Dearborn County, Indiana)
Built ca. 1910Abandoned pratt pony truss bridge over East Fork Tanners CreekAbandoned
Old U.S. 64 Brush Creek Bridge (Polk County, Tennessee)
Built on the old 2-lane alignment of U.S. 64, abandoned and left in place when new alignment in 1967 was built higher, 1/4 mile downstreamAbandoned Pratt through truss bridge over Brush Creek on Pre 1967 alignment of US Highway 64Abandoned
Old US 127 Liberty Bridge (Casey County, Kentucky)
Lost Through truss bridge over Green River on US 127Replaced by a new bridge
Old US 287 Bridge (Lewis and Clark County, Montana)
Abandoned pratt through truss bridge over Dearborn River on RoadAbandoned
Old US 31 Bridge (Chilton County, Alabama)
Abandoned pratt pony truss bridge on an abandoned alignment of US 31Abandoned
Old US 33 Bridge (Adams County, Indiana)
Abandoned pratt pony truss bridge over Blue Creek on Old US 33Derelict/abandoned
Old US 62 Overpass (Tillman County, Oklahoma)
Built 1929; made obsolete by new bridge in 1968Through truss bridge over BNSF Railroad on E1643/ Old US 62Intact but closed to all traffic
Old US 66 Gasconade River Bridge (Laclede County, Missouri)
(Main design: Parker through truss)Built 1922-24Four-spans - 1 Warren Pony truss, 1 Pratt & 2 Parker through truss bridge over Gasconade River on Old US 66 near Hazelgreen.Intact but closed to all traffic.
Old US-169 Neosho River Bridge (Neosho County, Kansas)
(Main design: Pratt through truss)Built ca. 1930Through truss bridge over Neosho River, 3.13 mi. north of K-39 N. Jct.Open to traffic
Old US61 Joachim Creek Bridge (Jefferson County, Missouri)
Built 1924; made obsolete by new bridge in 1933; closed to traffic Nov. 21, 2005; main span demolished Dec. 27, 2006; replaced by UCEB in 2007Lost through truss bridge over Joachim Creek on Joachim Avenue (Old US 61/67) in HerculaneumReplaced by UCEB
Old Van Patton Bridge (Laurens County, South Carolina)
Abandoned pratt through truss bridge over Enoree River on Old SC 418Abandoned
Old Vine St. Bridge (Pawnee County, Nebraska)
Built 1925; rehabilitated 1964Pratt Through truss bridge over Taylor Branch on County HighwayClosed to all traffic
Old Wenatchee Bridge (Chelan County, Washington)
Built 1908; bypassed by new highway bridge in 1950; reopened to pedestrians in 2010Cantilevered through truss bridge over Columbia River carrying a pedestrian walkway and pipelineOpen to pedestrians
Old Wernle Road Bridge (Wayne County, Indiana)
UnknownAbandoned Pratt bedstead pony truss over Short Creek on old section of Wernle RoadDerelict/abandoned
Old West Bay Drawbridge (Bay County, Florida)
Built 1945, replaced in 1993 with drawbridge section taken outBridge over Sr79 / Icww @ West Bay on Sr-79Open to pedestrians only
Old Westerville Bridge (Decatur County, Iowa)
Built 1902Lost Pratt through truss bridge over Thompson River on RoadBridge collapsed after a car crashed into the side in the late 1970's or early 1980's.
Old Williams Road Bridge (Allegany County, Maryland)
Built 1910; rehabilitated 1977Pratt pony truss bridge over Town Creek on Old Williams RoadClosed to all traffic
Old Witcher Creek Bridge (Kanawha County, West Virginia)
Pony truss bridge over Witcher Creek on Co. Route 60/21 (old us 60)Intact but closed to all traffic
Old Woodland Park Bridge (Perry County, Kentucky)
Built 1934Lost through truss bridge over North Fork Kentucky River on KY 2448 in HazardBridge has been replaced.
Old Woodruff Bridge (Navajo County, Arizona)
Built 1939 with relocated span from a 1918 bridgePratt pony truss bridge over Little Colorado River on an old alignment of Woodruff RoadOpen to pedestrians
Olex Bridge (Gilliam County, Oregon)
Built ca. 1905Abandoned pratt pony truss bridge over Rock CreekAbandoned
Olive Branch Bridge (Vermilion County, Illinois)
Pony truss bridge over Olive Branch on TR 365, 5.5 mi. southwest of FairmountCollapsed
Omro Swing Bridge (Winnebago County, Wisconsin)
(Main design: Pratt through truss)Lost Pratt through truss bridge over Fox River on RoadReplaced by a new bridge
Only Bridge (Hickman County, Tennessee)
(Main design: Pennsylvania through truss)Built 1907 by the Nashville Bridge Co.; Bypassed by a new bridge in 1962.Derelict through truss bridge over Duck River on TN 50 near OnlyDerelict with deck and approaches removed
Ontario Bridge (Lagrange County, Indiana)
Built ca. 1905Lost Pratt pony truss bridge over Pigeon River on County Road 225EReplaced by a new bridge
Opie Road Bridge (Somerset County, New Jersey)
Built 1921Pony truss bridge over South Branch Raritan River on Opie RoadOpen to traffic
Opossum Creek Bridge (Nowata County, Oklahoma)
Built ca. 1930Through truss bridge over Opossum Creek on Old U.S. 169Replaced by a new bridge
Orange Blossom Trail - Zanja Bridge (San Bernardino County, California)
Built 1902; Converted ca. 2012Pratt through truss bridge over The Mission Zanja on Orange Blossom TrailOpen to pedestrians only
Orange Hill Road Bridge (Knox County, Ohio)
Built 1887 by the Mt. Vernon Bridge Co.; rehabilitated 1985; replaced 2006Pony truss bridge over Ireland Creek on Orange Hill Road (TR 325)Replaced by a new bridge
Orange Road Bridge (Delaware County, Ohio)
Built 1898 by the Toledo Bridge Co.; rehabilitated 1970Through truss bridge over Olentangy River on Orange Road (TR 114) in PowellClosed and bypassed.
Organ Ferry Bridge (Ralls County, Missouri)
Collapsed due to overloaded semi truck/trailer filled with lard. Disaster occurred early evening, Jan 13, 1956 (a Friday). On MO State Hwy V between New London and Hannibal. Two drivers from Tennessee claimed they were lost and tried to cross.Lost through truss bridge east of New London, MONo longer exists, although the both bank abutments and some railing can still be seen just below the water.
Orleans Avenue Bridge (Minnehaha County, South Dakota)
Through truss bridge was closed to traffic for many years, posing a safety hazard resulting in the city councils decision to remove itLost through truss bridge over Big Sioux River on Orleans Avenue in Dell RapidsRemoved
Orleans Bridge (Polk County, Missouri)
Through truss bridge over Little Sac River on 505th Road, southeast of AldrichClosed to all traffic
Orr Road Bridge (Washington County, Arkansas)
Built 1924; rehabilitated 2017Through truss bridge over Illinois River on Orr Road (CR 67) just off AR 265, southeast of Prairie GroveOpen to traffic with 3 ton limit
Osage Creek Bridge (Benton County, Arkansas)
Built in 1911 by the Missouri Valley Bridge & Iron Company of Leavenworth, KansasThrough truss bridge over Osage Creek on CR 71 southeast of Healing SpringsReplaced by new bridge
Osage Creek Bridge (Grant County, Oklahoma)
Bypassed by new bridge 1967Pratt pony truss bridge over Osage Creek on Old US 81Open to traffic
Osage Road Spring Creek Bridge (Clay County, Kansas)
Built 1903Pratt through truss bridge over Spring Creek, 2.0 mi. north and 6.0 mi. west of GreenOpen to traffic
Osage Valley Road Bridge (Cooper County, Missouri)
Built 1913; rehabilitated 1993Pony truss bridge over Petite Saline Creek on Osage Valley RoadOpen to traffic
Osborn Road Bridge (Tehama County, California)
Built 1960; rehabilitated 1984Pratt Pony truss bridge over Mill Creek on Osborn RoadOpen to traffic
Osborne Covered Bridge (Clayton County, Iowa)
(Main design: Through truss)Lost Through truss bridge over Volga River on RoadRemoved
Osborne Road Bridge (Osage County, Kansas)
Built ca. 1910Abandoned through truss bridge over 110 Mile Creek, 2.5 mi. north and 0.7 mi. east of QuenemoClosed to all traffic
Osceola Bridge (St. Clair County, Missouri)
Lost circa 1970Lost two-span through truss bridge over Osage River at OsceolaDemolished with the creation of Truman Reservoir
Osiris Bridge (Cedar County, Missouri)
Built 1911 by the Canton Bridge Co.; replaced 2006Lost pony truss bridge over Horse Creek on CR 1600Replaced by a new bridge
OSL - American Falls Pegram Deck Truss (Power County, Idaho)
(Main design: Pegram deck truss)Built 1883; Pegram trusses added 1894; Whipple deck truss replaced in 1902; Replaced 1911Lost Pegram deck truss bridge over American Falls on Oregon Short Line RailroadReplaced by a new bridge
Ost Valle Bridge (Grand Forks County, North Dakota)
Built 1910Through truss bridge over an Unnamed tributary of Red River on a 8th Avenue NE, 1 mi. north and 6 mi. east of Thompson in Walle TownshipOpen to traffic
Oswald Bridge (Madison County, Illinois)
Built 1937, replaced in 2014-15Pony truss bridge over Sugar Creek on Michael Road, east of Highland, 1.5 mi. east of HighlandReplaced by a new bridge
Ottawa Bridge (LaSalle County, Illinois)
(Main design: Parker through truss)Built 1910; Replaced 1933Lost Parker through truss bridge over Illinois River on La Salle StreetReplaced by a new bridge
Ottawa Bridge (Old) (LaSalle County, Illinois)
Built 1885; Replaced 1910Pratt through truss bridge over Illinois River on La Salle StreetReplaced by a new bridge
Ottawa Creek TR 38 Bridge (Hancock County, Ohio)
Built by the Smith Bridge Co.Pony truss bridge over Ottawa Creek on TR 38Closed to all traffic
Ottawa Creek TR 84 Bridge (Hancock County, Ohio)
Built by the Wrought Iron Bridge Co.Pony truss bridge over Ottawa Creek on TR 84Closed to all traffic
Ottawa Street Bridge (Newton County, Missouri)
Built by the Canton Bridge Co, Replaced 2008Pony truss bridge over Little Lost Creek on Ottawa Street in SenecaReplaced by a new bridge
Otter Creek Bridge (Lyon County, Iowa)
Built 1900Through truss bridge over Otter Creek on a local roadOpen to traffic
Otter Creek Bridge (Franklin County, Virginia)
Built 1932Pratt through truss bridge over Otter Creek on Mario Farm Road 892Open to traffic
Otter Creek Bridge (Logan County, Oklahoma)
Built 1912Through truss bridge over Otter Creek on E0640Closed to all traffic
Otter Creek Bridge (Fayette County, Iowa)
Relocated 1956Pony truss bridge over Otter Creek on 45th StreetOpen to traffic
Otter Creek Bridge CR 1300N (Clay County, Indiana)
Built c 1898Lost Pratt pony truss bridge over Otter Creek on CR 1300 NReplaced by a new bridge
Otter Creek Rail Road Bridge (Jennings County, Indiana)
Built 1890'sPratt deck truss bridge over Otter Creek on Madison RailroadReplaced by a new bridge
Otto Road Bridge (Fulton County, Illinois)
Pony truss bridge over Otter Creek on Otto Road (1250E)Open to traffic
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