There are 8,181 bridges in this category · Only showing 6,131 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.


UP - East Navidad River Bridge (Fayette County, Texas)
Built 1914
Pratt through truss bridge over East Navidad River on Union Pacific Railroad Co., Glidden Subdivision
Open

UP - Eddyville Rail Bridge (Monroe County, Iowa)
First Bridge built 1870, second built 1884, this one built ca. 1926, approach washed out and filled in 1964
Pratt through truss bridge over Des Moines River & Muchakinock Creek on Union Pacific Railroad
Open to traffic

UP - Elkhorn River Bridge (Waterloo) (Douglas County, Nebraska)
Built 1906
Pratt Through Truss bridge over Elkhorn River on Union Pacific Railroad
Open to traffic

UP - Elko Bridge (Elko County, Nevada)
Through truss bridge over Humboldt River on Union Pacific Railroad
Open to traffic

UP - Estherville Railroad Bridge (Emmet County, Iowa)
Built 1894
Deck truss bridge over West Fork Des Moines River on the Union Pacific Railroad in Estherville
Open to traffic

UP - Fall Creek Pond Bridge (Eau Claire County, Wisconsin)
Pony Truss built 1898, Deck Plate Girder built 1906
Pratt pony truss bridge over Fall Creek on Union Pacific Railroad
Open to traffic

UP - Fallon Bridge (Churchill County, Nevada)
Built 1906
Pratt subdivided through truss bridge over Carson River on Railroad
Open to traffic

UP - Frio River Bridge (Uvalde County, Texas)
Pratt through truss bridge over Frio River on Railroad
Open to traffic

UP - Gasconade River Bridge (Gasconade County, Missouri)
Lost Pratt through truss w/deck plate girder swing bridge over Gasconade River on the Union Pacific Railroad
Replaced by a new bridge

UP - Grand River Bridge (Muskogee County, Oklahoma)
Built 1909
Through truss bridge over Grand River on UP Railroad
Open to traffic

UP - Green River Bridge (Spur) (King County, Washington)
Pratt through truss bridge over Green River on Railroad
Open to traffic

UP - Guadalupe River Bridge (McQueeney) (Guadalupe County, Texas)
(Main design: Camelback through truss)
Built 1899. Original main span replaced due to flood damage.
Camelback through truss bridge over Guadalupe River on Union Pacific Railroad
Open to traffic

UP - Guadalupe River Bridge (N) (Comal County, Texas)
Built 1901 by The Phoenix Bridge Co.
Pratt deck truss bridge over Gaudalupe River on Railroad
Open to traffic

UP - Guadalupe River Bridge (Victoria) (Victoria County, Texas)
Built 1927
Pratt through truss bridge over Guadalupe River on Union Pacific Railroad
Open to traffic

UP - Gunnison River Bridge (Delta County, Colorado)
(Main design: Parker through truss)
Through truss bridge over Gunnison River on Union Pacific Railroad
Replaced by a new bridge

UP - Hoffman Swing Bridge (Ramsey County, Minnesota)
(Main design: Warren through truss)
Built 1909-10 for St. Paul Bridge & Terminal Railway
Warren through truss bridge over Mississippi River on Union Pacific Railroad
Open to traffic

UP - Hondo Creek Bridge (Medina County, Texas)
Built ca. 1950
6-Panel Pratt through truss bridge over Hondo Creek on Railroad
Open to traffic

UP - Hudson Swing Bridge (Washington County, Minnesota)
(Main design: Pratt through truss)
Opened 1913, replacing 1881 and 1872 bridges
Pratt through truss bridge over St. Croix River on Union Pacific Railroad
Open to traffic

UP - Humboldt River Bridge (East Carlin) (Elko County, Nevada)
Pratt through truss bridge over Humboldt River on Railroad
Open to traffic

UP - Humboldt River Bridge (West Elko No. 1) (Elko County, Nevada)
Pratt through truss bridge over Humboldt River on Railroad
Open to traffic

UP - Humboldt River Bridge (West Elko No. 2) (Elko County, Nevada)
Pratt through truss bridge over Humboldt River on Railroad
Open to traffic

UP - Humboldt River Bridge No. 2 (Elko County, Nevada)
Through truss bridge over Humboldt River on railroad
Open

UP - Hunter Bridge (Comal County, Texas)
Built ca. 1901
Pratt through truss bridge over York Creek on Railroad
Open to traffic

UP - Idaho Falls Bridge (Old) (Bonneville County, Idaho)
Built 1879
Lost Pratt through truss bridge over Snake River on Union Pacific Railroad
Replaced by a new bridge

UP - Illinois River Lift Bridge (Tazewell County, Illinois)
Built 1912
Vertical lift through truss bridge over Illinois River on Union Pacific Railroad in Pekin
Open to traffic

UP - Irondale Bridge (Washington County, Missouri)
Deck truss bridge over Big River on the Iron Mountain Railroad (now UPRR) north of Irondale
Open to railroad traffic

UP - Kansas River Bridge #1 (Wyandotte County, Kansas)
Built 1903, Shifted and East Span Added 1911
Pratt through truss bridge over Kansas River on Railroad (UP)
Open to traffic

UP - Kansas River Bridge #2 (Wyandotte County, Kansas)
Built 1900, Shifted and East Span Added 1911
Through truss bridge over Kansas River on the Union Pacific Railroad
Open to traffic

UP - Kansas River Bridge #3 (Wyandotte County, Kansas)
Built 1904 to replace previous bridge destroyed by 1903 flood
Four-span through truss bridge over Kansas River on the Union Pacific Railroad just north of I-70
Open to single-track railroad traffic

UP - Kickapoo Creek Viaduct (Peoria County, Illinois)
Built 1912
Pratt through truss bridge over Kickapoo Creek/ Kickapoo Creek Road/Railroad on Union Pacific Railroad
Open to traffic

UP - Le Sueur Creek Bridge (Le Sueur County, Minnesota)
Built 1899 as a Four Span Bridge, 2 Spans Removed and Rebuilt 19XX
Warren pony truss bridge over Le Sueur Creek on Union Pacific Railroad
Open to traffic

UP - Little River Birdge (Bell County, Texas)
Pratt through truss bridge over Little River on Union Pacific Railroad
Open to traffic

UP - Loup River Bridge (Platte County, Nebraska)
Built 1908
Pin connected Pratt through truss bridge over Loup River on railroad
Open to traffic

UP - Lower Pollard Flat Bridge (Shasta County, California)
Built 1901
Pratt through truss bridge over Sacramento River on Union Pacific Railroad
Open to traffic

UP - Marys River Bridge (Randolph County, Illinois)
Through truss bridge over Marys River on the Union Pacific Railroad, south of Chester and just west of IL 3
Open to railroad traffic

UP - Navasota River Bridge (Limestone County, Texas)
Pratt through truss bridge over Navasota River on Railroad (UP)
Open to traffic

UP - Neches River Bridge (Angelina County, Texas)
Built 1925
Through truss bridge over Neches River on Railroad
Open to traffic

UP - North Boggy Creek Bridge (Atoka County, Oklahoma)
Located next to old alignment of US 69, parallel to current US 69
Pratt deck truss bridge over North Boggy Creek on Union Pacific Railroad
Open to traffic

UP - Omaha Railroad Bridge (Pottawattamie County, Iowa)
(Main design: Parker through truss)
Built 1916
Through truss bridge over Missouri River on Union Pacific Railroad
Open to traffic

UP - Osage City Bridge (Cole County, Missouri)
Through truss bridge on the Union Pacific Railroad over Osage River at Osage City
Open to traffic

UP - Palouse River Bridge Br279.10 (Whitman County, Washington)
Built 1912
Pratt deck truss bridge over Palouse River on Union Pacific RR Ayer Subdivision
Open to traffic

UP - Piru Creek Bridge (Ventura County, California)
Built in 1902 by the American Bridge Company.
Abandoned pratt through truss bridge over Piru Creek on Union Pacific Railroad in Piru
Abandoned

UP - Pudding River Bridge (Clackamas County, Oregon)
Built 1906
Pratt through truss bridge over Pudding River on Union Pacific Railroad
Open to traffic

UP - Puyallup River Bridge (Pierce County, Washington)
Built 1948
Through truss bridge over Puyallup River on Union Pacific Railroad
Open to traffic

UP - Red Cedar River Bridge (Dunn County, Wisconsin)
Built 1912 when the second track was added. Replaced older truss bridge
Pratt deck truss bridge over Red Cedar River on Union Pacific Railroad
Open to traffic

UP - Red River Bridge (Ringold) (Montague County, Texas)
Pratt through truss bridge over Red River on Union Pacific Railroad
Open to traffic

UP - Rio Grande Bridge (N) (El Paso County, Texas)
Built 1917
Deck truss bridge over the Rio Grande on Railroad (UP, nee SP & EPSW)
Open to traffic

UP - Rio Grande Bridge (S) (El Paso County, Texas)
Built 1917
Deck truss bridge over Rio Grande on Railroad (UP, nee SP)
Open to rail traffic

UP - Riparia Bridge (Whitman County, Washington)
Built 1889; Removed 1969
Lost Pratt through truss swing bridge over Snake River on Union Pacific Railroad
Removed

UP - Rocklin Bridge (Placer County, California)
Pratt through truss bridge over Antelope Creek and UP BNSF Railroad on UP BNSF Railroad
Open to traffic

UP - Rossville Bridge (Shawnee County, Kansas)
Built 1906
Through truss bridge over Cross Creek on the Union Pacific Railroad at Rossville
Open to traffic

UP - S. Fork Big Nemaha River Bridge (Nemaha County, Kansas)
Through Truss Bridge over S. Fork Big Nemaha River Bridge on Union Pacific Railroad
Open to traffic

UP - Sabinal River Bridge (Uvalde County, Texas)
Unknown builder-SW deck girder built in 1906-Main span built in 1903
Pratt through truss bridge over Sabinal River on Railroad
Open to traffic

UP - Sacramento River Bridge (Tehama County, California)
Built 1898, 1901 Approach Rehabilitation, 1929 Approach truss replacments
Pratt through truss bridge over Sacramento River on Union Pacific Railroad
Open to traffic

UP - Sacramento River Bridge (Siskiyou County, California)
Built 1901
Pin-connected Pratt through truss bridge over Sacramento River on Union Pacific Railroad
Open to traffic

UP - Sacramento River Bridge (Shasta County, California)
Built 1901
Pratt through truss bridge over Sacramento River on Union Pacific Railroad
Open to traffic

UP - Sacramento River Bridge (Shasta County, California)
Built 1901
Pratt through truss bridge over Sacramento River on Union Pacific Railroad
Open to traffic

UP - Salado Creek Bridge (Bexar County, Texas)
Built on the MKT line-6-panel Pratt through truss
6-panel Pratt through truss bridge over Salado Creek on Railroad
Open to traffic

UP - Salt River Bridge (Maricopa County, Arizona)
Built 1912
Pratt through truss bridge over Salt River on UP Railroad and Amtrak in Tempe
Open to traffic

UP - San Gabriel River Bridge (Los Angeles County, California)
Through truss bridge over San Gabriel River on UPRR in Whittier
Open to Traffic

UP - Sandy Fork Creek Bridge (Gonzales County, Texas)
Built 1914
Pratt through truss bridge over Sandy Fork Creek on Union Pacific Railroad Co,, Glidden Subdivision
Open

UP - Santa Paula Creek Bridge (Ventura County, California)
Built 1916 by the American Bridge Company
Through truss bridge over Santa Paula Creek on Union Pacific Railroad in Santa Paula
Open to traffic

UP - Santiam River Bridge (Marion County, Oregon)
Built 1906
Pratt through truss bridge over Santiam River on Union Pacific Railroad in Jefferson
Open to traffic

UP - Seco Creek Bridge (Medina County, Texas)
Built 1914
Pratt through truss bridge over Seco Creek on Railroad
Open to traffic

UP - Shelbyville Bridge (Shelby County, Illinois)
Built 1891; Strengthened 1916 using parts from the 1892 CEI Okaw River Bridge
Pratt deck truss bridge over Kaskaskia River on Union Pacific Railroad in Shelbyville
Open to traffic

UP - St. Paul Lift Bridge (Ramsey County, Minnesota)
Built 1913 replacing a swing bridge, raised 1925, rebuilt over Warner Road 1956
Vertical lift bridge over Mississippi River on the Union Pacific Railroad in St. Paul


UP - Sycamore Creek Bridge (E) (Kinney County, Texas)
(Main design: Warren through truss with all verticals)
Six-panel Pratt through truss and six-panel Warren through truss with all verticals bridge over Sycamore Creek on railroad
Open

UP - Three Rivers Bridge (Otero County, New Mexico)
Pratt Through truss bridge over Three Rivers on Railroad (UP)
Open to traffic

UP - Timber Creek Bridge (S) (Marshall County, Iowa)
Built 1900
Pratt through truss bridge over Timber Creek on Union Pacific Railroad
Open to traffic

UP - Tobin Bridge (Plumas County, California)
Built 1909
Through truss railroad bridge over CA 70 in Tobin
Railroad traffic only

UP - Truckee River Bridge (Lockwood) (Storey County, Nevada)
Pratt through truss bridge over Truckee River on UP Railroad
Open to traffic

UP - Twin Cities Bridge (Sutter County, California)
Built 1907; Road trusses removed ca. 1955 due to flooding damage.
Pin connected Pratt through truss bridge over Feather River on railroad trail
Open to pedestrians

UP - Verdi Bridge (Washoe County, Nevada)
Pratt Deck truss bridge over Truckee River on Union Pacific west of Reno
Pratt Deck truss bridge over Truckee River on Union Pacific Railroad
Open to traffic

UP - Weber River Bridges No. 2 (Morgan County, Utah)
Built 1931
Pratt through truss bridges over Weber River on Railroad (UP)
Open to traffic

UP -Garcitas Creek Bridge (Victoria County, Texas)
Pratt through truss bridge over Garcitas Creek on Union Pacific Railroad
Open to traffic

UP-Cibolo Creek Bridge (Bexar County, Texas)
Built 1928
Through truss bridge over Cibolo Creek and Evans Road on the Union Pacific Railroad ( MKT)
Open to traffic

UP/NP - Gauntlet Bridge (Yakima County, Washington)
Built 1922
Through truss bridge over Yakima River on Union Pacific Railroad/ Northern Pacific Railroad
Currently abandonded

Upland Trail - Commerce Street Overpass (Montgomery County, Tennessee)
Built ca. 1950
Through truss bridge over Commerce Street on Pedestrian Trail
Open to traffic

Upper Bluffton Bridge (Winneshiek County, Iowa)
Built 1878 by the Wrought Iron Bridge Co.; rehabilitated in 2001; closed to traffic in 2009; queenpost span now private property, through truss span is gone
Through truss bridge over Upper Iowa River on W. Ravine Road
Queenpost span is relocated to a nearby property to be used as a driveway; through truss span was scrapped.

Upper Hurricane Creek Private Bridge (Madison County, Alabama)
Pony truss bridge over Upper Hurricane Creek on Private Road
Closed to public

Upper Keeseville Bridge (Essex County, New York)
Built 1878 by Murray, Dougal & Co.; Closed 2008
Pin connected Pratt through truss bridge over AuSable River on River Street in Keeseville
Closed to all traffic

Upper Main Street Bridge (Monmouth County, New Jersey)
Pratt pony truss bridge over McGllairds Brook on Main Street


Upper Salt Fork Bridge (Champaign County, Illinois)
Built ca. 1900, replaced 1992
Through truss bridge over Upper Salt Fork Drainage Ditch on TR 159
Replaced by a new bridge

Upper Selah Bridge (1st) (Yakima County, Washington)
Built 1905; Replaced 1907
Bridge over Yakima River conecting East Selah and Yakima Canyon to Yakima
Replaced by a new bridge

Upper Selah Bridge (2nd) (Yakima County, Washington)
Built 1907; Replaced 1947
Lost Pratt through truss bridge over Yakima River on the present Golf Course Road
Replaced by a new bridge

Upper Soldier Ditch Bridge (Monona County, Iowa)
(Main design: Pratt through truss)
Built ca. 1910
Through truss bridge over Upper Soldier Ditch on 210th Street
Derelict/abandoned

Upton Bridge (Amador County, California)
Built unknown year.
Pratt pony truss bridge over South Fork Consumnes River on Upton Road
Open to traffic with "private agricultural road" signs.

Uravan Bridge (Montrose County, Colorado)
Built 1886
Wrought-iron through truss bridge over San Miguel River near Uravan
Open to Pedestrians

Urbana Bridge (Benton County, Iowa)
Built 187X; Replaced 1969
Lost pratt through trusa bridge over Cedar River on 31st Avenue Trail
No longer exists; supports still stand

Urbania Road Bridge (Fayette County, Pennsylvania)
Built 1909
Pony truss bridge over Georges Creek on Urbania Road
Open to traffic

URR - Carrie Furnace Hot Metal Bridge (Allegheny County, Pennsylvania)
(Main design: Pennsylvania through truss)
Built 1900
Abandoned Pennsylvania through truss bridge over Monongahela River on former railroad
Abandoned

US 9W - Popolopen Creek Bridge (Orange County, New York)
Built 1937; rehabilitated 1992
Deck truss bridge over Popolopen Creek on US 9W in West Point
Open to traffic

US20 Boone River Bridge (Old) (Hamilton County, Iowa)
Built 1878-9; Struck 1949; Replaced 1950
Lost Pratt through truss bridge over Boone River on US 20 (East 2nd Street)
Destroyed by collision

US27 Cumberland River Bridge (Old) (Pulaski County, Kentucky)
(Main design: Parker through truss)
Built ca. 1927, replaced 1950
Lost Through truss bridge over Cumberland River on US 27 at Burnside
Replaced by a new bridge

US29 Broad River Bridge (Cherokee County, South Carolina)
Built 1932, replaced 2007
Lost four span Pratt through truss bridge over Broad River on US 29
No longer exists

US30 Medicine Bow Bridge (Carbon County, Wyoming)
Built 1912; replaced
Lost Pratt through truss bridge over Medicine Bow on US-30
Replaced by a new bridge

US36 Riverton Bridge (Sangamon County, Illinois)
Built 1922; bypassed 1958 but remained open until Aug. 1979, removed 1983
Lost Pratt through truss bridge over Sangamon River on Old US 36 at Riverton
Replaced by a new bridge

US40 Flatrock River Bridge (Old) (Henry County, Indiana)
Built 1908; Replaced ca. 1944
Lost Pratt through truss bridge over Flatrock River on US-40
Replaced by a new bridge

US50 Cheat River Bridge (Preston County, West Virginia)
Built 1932; rehabilitated 1987
Three-span through truss bridge over Cheat River on US 50
Open to traffic

US52 Running Slough Bridge (Jackson County, Iowa)
Built 1933; rehabilitated 1985; lost February 27, 2018 when it sagged after a pier was undermined
Through truss bridge over Running Slough (Mississippi River Overflow) on US 52/IA 64 in Sabula
Closed due to washout; replacement under construction