There are 8,017 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.


Unnamed Creek Bridge (Beaver County, Oklahoma)
Built 1947; rehabilitated 1958
Pratt Pony truss bridge over an unnamed creek on N1190
Open to traffic

Unnamed Creek Bridge (Davis County, Iowa)
Built ca. 1910
Pony truss bridge over North Wyaconda River on Umber Avenue
Open to traffic

Unnamed Creek Bridge (Le Flore County, Oklahoma)
Built 1938
Pony truss bridge over an unnamed creek on E1570
Open to traffic

Unnamed creek tributary of Vermilion River (Livingston County, Illinois)
Pony truss bridge over unnamed creek/ tributary of Vermilion on Private drive turning west off of N 800 E Rd.
Intact but closed to all traffic

Unnamed Stream Bridge (Otoe County, Nebraska)
Built 1935
Pony truss bridge over an unnamed stream on CR 42 (42nd Road), 1.8 mi. west of Dunbar
Open to traffic

UP - 15th Street Bridge (Pierce County, Washington)
(Main design: Pratt through truss)
Built 1894
Lost Through truss bridge over Foss Waterway on 15th Street and Union Pacific Railroad
Removed but not replaced

UP - Afton Canyon Bridge (San Bernardino County, California)
Through truss bridge over Mohave River on Union Pacific Railroad
Open to traffic

UP - American Falls Bridge (Power County, Idaho)
Built 1927, Raised and strengthed 1970's
Pratt deck truss bridge over Snake River on Union Pacific Railroad (UP)
Open to traffic

UP - Arkadelphia Bridge (Clark County, Arkansas)
Built 1930
Two-span through truss railroad bridge over Ouachita River on the Union Pacific Railroad at Arkadelphia
Open to traffic

UP - Arkansas River Bridge (Chaffee County, Colorado)
Through truss bridge over Arkansas River on Out of Service Union Pacific Railroad
Closed to all traffic

UP - Arkansas River Bridge (Pueblo County, Colorado)
(Main design: Parker through truss)
Parker through truss bridge over Arkansas River on Union Pacific Railroad
Open to traffic

UP - Auburn Ravine Bridge (Placer County, California)
Built 1909
Deck truss bridge carrying railroad over I-80 in Auburn
Open to traffic

UP - Badger Creek Bridge (Fremont County, Colorado)
Through truss bridge over Badger Creek on Union Pacific Railroad
Open to traffic

UP - Big Creek Bridge (Linn County, Iowa)
Pratt pony truss bridge over Big Creek on Union Pacific Railroad
Open to traffic

UP - Brazos River Bridge (Brazoria County, Texas)
Built ca. 1907
Swing through truss bridge over Brazos River on the Union Pacific Railroad at Brazoria
Open to traffic

UP - Brazos River Bridge (Waller County, Texas)
(Main design: Camelback through truss)
Built 1906
Camelback through truss bridge over Brazos River on Union Pacific Railroad
Open to traffic

UP - Brazos River Bridge (Richmond) (Fort Bend County, Texas)
(Main design: Parker through truss)
Closed after being damaged by flooding in 2016
Parker through truss bridge over Brazo River on Union Pacific Railroad
Open

UP - Brazos River Bridge (Waco) (McLennan County, Texas)
Pratt through truss bridge over Brazos River on Railroad
Open to traffic

UP - Byers Bridge (Arapahoe County, Colorado)
Two-span through truss railroad bridge over West Bijou Creek just west of Byers
Unknown status

UP - Canal #43 Bridge (Desha County, Arkansas)
Pratt through truss bridge over Canal #43 on Arkansas Midland Railroad
Open to traffic

UP - Carquinez Strait Bridge (Contra Costa County, California)
(Main design: Warren through truss)
Originally built for the Southern Pacific Railroad in 1929-1930, this is the last simple truss railroad bridge built in the United States at a new location (i.e. where none had existed before).
Warren through truss bridge over Carquinez Strait on double track of Union Pacific Railroad in Martinez
Open to traffic

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

UP - Cedar Draw Bridge (Terrell County, Texas)
(Main design: Parker through truss)
Through truss bridge over Cedar Draw on Union Pacific Railroad
Open to traffic

UP - Cedar River Bridge (Linn County, Iowa)
1898; survived the Great Flood of 2008 with minor damages
Pratt through truss bridge over Cedar River on Chicago and Northwestern Railroad (now UPRR)
Open to traffic

UP - Chippewa River Bridge (Eau Claire County, Wisconsin)
Built 1911 by Chicago Northwestern succeeding the bridge downstream
Pratt deck truss bridge over Chippewa River 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 - Comal River Bridge (Comal County, Texas)
Built 1901 by Phoenix Bridge Co. Abandoned 1989-restored to service Oct. 1998
Pratt through truss bridge over Comal River on Union Pacific Railroad
Open to traffic

UP - Crooked River Bridge (Ray County, Missouri)
Built 1931 by Rock Island Railroad in a 1
Bridge over Crooked River on Union Pacific Railroad
Open to traffic

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

UP - Eagle Creek Bridge (Multnomah County, Oregon)
Built 1935
Pratt through truss bridge over Eagle Creek on Union Pacific Railroad
Open to traffic

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 1891, Deck Plate Girder built 1901
Pratt pony truss bridge over Fall Creek on Union Pacific Railroad
Open to traffic

UP - Forest Prairie Creek Bridge (Le Sueur County, Minnesota)
Built 1899, North abutment repaired 1977
Warren pony truss bridge over Forest Prairie Creek on Union Pacific 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 by the St. Louis and Iron Mtn. Railroad
Through truss bridge over Grand River on UP Railroad
Open to traffic

UP - Green River Bridge (King County, Washington)
Pratt through truss bridge over Green River on 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 circa 1900. 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 (New Braunfels, 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
Open to traffic

UP - Hoffman Swing Bridge (Ramsey County, Minnesota)
(Main design: Warren through truss)
Built 1910 for Chicago Great Western
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 - Little River Birdge (Milam 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 - 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 1915
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