There are 8,187 bridges in this category · Only showing 6,147 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.

South Fork Gualala River Bridge (Sonoma County, California)
Current bridge installed 1984, likely multiple previous bridges at this location
Lost Pratt deck truss bridge over South Fork Gualala River on Stewart's Point Skagg Springs Road
Replaced by new bridge

South Fork Main City Road Bridge (Cass County, Missouri)
Built ca. 1905; Replaced 2013
Bedstead Pony truss bridge over South Fork on Main City Road
Replaced by a new bridge

South Fork Patoka River Bridge (Pike County, Indiana)
Built ca. 1920; replaced 1998
Lost through truss bridge over South Fork Patoka River on CR 300 E
Replaced by new bridge

South Fork Patoka River Houchin Ditch CR 400 E (Pike County, Indiana)
Built ca. 1905; Replaced 1990
Lost Pratt pony truss bridge over South Fork Patoka River Houchin Ditch on CR 400 E
Replaced by a new bridge

South Fork Pine Creek Bridge (Armstrong County, Pennsylvania)
Built 1912; rehabilitated 1973
Pony truss bridge over South Fork Pine Creek on TR 529
Unknown status

South Fork Prairie Creek CR 300 E (Daviess County, Indiana)
Built ca. 1905; Replaced 1988
Lost Pratt pony truss bridge over South Fork Prairie Creek on CR 300 E
Replaced by a new bridge

South Fork Prairie Creek CR 575 E (Daviess County, Indiana)
Built ca. 1905; Replaced 1990
Lost Pratt pony truss bridge over South Fork Prairie Creek on CR 575 E
Replaced by a new bridge

South Fork TR 242 Bridge (Monroe County, Ohio)
Built by the Bellefontaine Bridge & Iron Co.
Pony truss bridge over South Fork on TR 242
Replaced by a new bridge

South Fork Wildcat Creek CR 530E Bridge (Clinton County, Indiana)
Built ca. 1895 by the Lafayette Bridge Company
Lost pony truss bridge over South Fork Wildcat Creek on CR 530 E.
Replaced by new bridge

South Fork Wildcat Creek SR 38 Bridge (Tippecanoe County, Indiana)
Built 1916; rehabilitated 1978; replaced 1993
Lost through truss bridge over South Fork Wildcat Creek on IN 38
Replaced by new bridge

South Fork Wolf River Bridge (Brown County, Kansas)
Built ca. 1940
Pony truss bridge over South Fork Wolf River, 1.3 mi. east and 4.5 mi. north of Everest
Open to traffic

South Grand Avenue Bridge (Pettis County, Missouri)
Built in 1889 at at another location, relocated here 1904
Two-span through truss bridge over Flat Creek on South Grand Avenue, south of Sedalia
Open to one-lane traffic

South Greenfield Overpass (Dade County, Missouri)
Built 1924; replaced 1996
Lost Pratt through truss bridge over BNSF Railroad on Old MO 39
Replaced by new bridge

South Henderson Creek Bridge (Henderson County, Illinois)
Built 1915
Pony truss bridge over South Henderson Creek on CR1800E
Open to traffic

South Island Bridge (Will County, Illinois)
Pony truss bridge over East Branch Kankakee River on West Street, 0.25 mi. north of Kahler Rd
Now resides as a display at DDD Construction in Coal City.

South Loup River Bridge (Custer County, Nebraska)
Built 1930
Pony truss bridge over South Loup River on Township Road
Open to traffic

South Main Street Bridge (Trumbull County, Ohio)
(Main design: Pratt through truss)
Built about 1887 (based on design ques) by Columbia Bridge Co., replaced 1918
Lost Pratt through truss bridge over Mahoning River on South Main Street
Replaced by a new bridge

South Park Bridge (Old) (King County, Washington)
Built 1931
Bascule bridge over Duwamish River on 14th Avenue South in Seattle
Demolished. Main span removed September 1, 2010.

South Park Street Bridge (Jefferson County, Colorado)
Built 1926; rehabilitated 1992, rebuilt 2014
Pony truss bridge over Bear Creek on South Park Street in Morrison
Open to traffic

South Raccoon River Bridge (Guthrie County, Iowa)
Built or relocated here 1948
Pony truss bridge over South Raccoon River on CR N70 (Locust Avenue)
Open to traffic

South River CR 402 Bridge (Marion County, Missouri)
Built ca. 1930, replacing an earlier bridge
Pony truss bridge over South River on CR 402, east of Palmyra
Open to one-lane traffic

South Sauty Creek Bridge (De Kalb County, Alabama)
Abandoned pratt through truss bridge over South Sauty Creek on Jones Rd
Derelict/abandoned/collapsed

South Shore - Gauntlet Bridge (Lake County, Indiana)
Built 1907 by American Bridge Co for ZChicago South Shore & South Bend; dismantled and replaced November 2002
Pratt through truss bridge over Pennsylvania Railroad/Wabash Railroad on Chicago. South Shore. & South Bend Railroad
Replaced by a new bridge, reportedly in storage in Michigan City

South Skunk River Bridge (Polk County, Iowa)
Built 1928
Pratt through truss bridge over South Skunk River on 158th Avenue (158th Ave)
Open to traffic

South Skunk River Bridge (Jasper County, Iowa)
Built 1899; Demolished 2014
Lost Through truss bridge over South Skunk River on 126th Avenue
Demolished in 2014. New concrete bridge opened in 2015.

South Smith Road Bridge (Rock County, Wisconsin)
Built 1910
Single lane Pratt through truss bridge over Turtle Creek on South Smith Road
Open to traffic

South Spencer Creek CR 15 Bridge (Pike County, Missouri)
Built 1910 by the Midland Bridge Co.; replaced 2007
Lost pony truss bridge over South Spencer Creek on CR 15
Replaced by new bridge

South Street Bridge (Rutland County, Vermont)
Built 1923 by Palmer Steel Co.; Rehabilitated 1975
Pratt through truss bridge over Poultney River on VT 31 in Poultney
Open to traffic

South Timber Creek Bridge (Marshall County, Iowa)
Built 1954
Pratt Through truss bridge over South Timber Creek on 260th Street
Open to traffic

South Wallingford Road Bridge (Will County, Illinois)
Built ca.1890 by the Wrought Iron Bridge Company
Abandoned pony truss bridge over Forked Creek on abandoned alignment of Wallingford Rd
Abandoned

South Windrow Road Bridge (Rutherford County, Tennessee)
Abandoned Pratt through truss bridge over West Fork Stones River on South Windrow Road
Abandoned

South Wyacondah Ditch Bridge (Davis County, Iowa)
Built 1905
Through truss bridge over South Wyacondah Ditch on Robin Blvd
Open to traffic

South Wyacondah Ditch Bridge (Davis County, Iowa)
Built at an unknown date. Possible work or event occured, ca. 1950
Through truss bridge over South Wyacondah Ditch on Timber Avenue
Intact but closed to all traffic

Southern - First Broad River Bridge (Cleveland County, North Carolina)
Abandoned pratt deck truss bridge over First Broad River on Old Southern Railway
Abandoned

Southern Pacific Railroad Bridge (Sacramento County, California)
Built 1884 by Phoenix Bridge Company, originally located near Saugus, later relocated to Tehachapi Creek and later to Danville
Pratt through truss bridge on Display train
Intact but closed to all traffic

Southport Road Overpass (Peoria County, Illinois)
Built 1936; rehabilitated 1981
Through truss bridge over the BNSF Railroad on IL 8
Open to traffic

Southside Drive Bridge (Rutherford County, North Carolina)
Pratt through truss bridge over Broad River
Open on a private driveway

Southwind Rail Trail - Elm Creek Bridge (Allen County, Kansas)
Built 1890, Approach Added 1900, Strengthened 1919
Pratt through truss bridge over Elm Creek on Southwind Rail Trail
Open to pedestrian and bicycle traffic only

SP - Brazos River Bridge (Waller County, Texas)
(Main design: Parker through truss)
Built ?; Dynamited ca. 1961-62
Lost Through truss bridge over Brazos River on Railroad
Blown Up

SP - Dolores Street Overpass (San Francisco County, California)
Built 1890; Removed 1942
Bridge over Dolores Street & 27th Street on Southern Pacific Railroad


SP - Dumbarton Bridge (Alameda County, California)
(Main design: Baltimore through truss)
Built 1910, last used for freight 1982; acquired by San Mateo County Transit District 1994
Abandoned baltimore through truss bridge over San Francisco Bay on Caltrain
Abandoned

SP - Guadalupe River Bridge (Kendall County, Texas)
(Main design: Parker through truss)
Built 1900-1906
Abandoned Parker Through Truss bridge over Gudalupe River on abandoned Railroad
Abandoned

SP - Rowlett Creek Bridge (Collin County, Texas)
Built 1914
Pratt through truss bridge over Rowlett Creek on DART
Not in current use

SP - Yuma Swing Bridge (4th) (Yuma County, Arizona)
(Main design: Warren through truss)
Built 1894-1899; Replaced 1923 on a new alignment.
Lost Parker through truss bridge over Colorado River on Southern Pacific Railroad
Replaced by a new bridge

Spalding Bridge (Menominee County, Michigan)
Built 1918; Moved 1934; Altered in 1988; Replaced 1995; Relocated 1997
Relocated Pratt pony truss bridge over Big Cedar River on Old US 2/Old US 41 in Spalding
Replaced by new bridge; Relocated 1997

Spangberg Ford Bridge (Benton County, Missouri)
Built 1907 by the Kansas City Bridge Co.
Pin connected Pratt Truss bridge over Brush Creek on CR NW 901
Replaced by a new Low Water Crossing

Sparks Ferry Bridge (Jackson County, Indiana)
(Main design: Pratt through truss)
Built ca. 1890; closed to traffic 2006
Two-span through truss bridge over East Fork White River on Sparks Ferry Road
Open to pedestrians only

Sparks Road Bridge (Baltimore County, Maryland)
Built 1888; rehabilitated 1990
Pratt through truss (with added arch) over Gunpowder Falls on Sparks Road
Open to traffic

Sparta Field Road Bridge (Gonzales County, Texas)
Abandoned half-hip Pratt pony truss bridge over Peach Creek on Sparta Field Road (CR 451)
Derelict/abandoned

Speel Creek Bridge (Martin County, Indiana)
Built 1898; replaced 1997
Lost pony truss bridge over Speel Creek on CR 50 E
Replaced by new bridge

Spencer Bridge (Owen County, Indiana)
Built 1897; replaced 1995
Lost through truss bridge over White River on CR 25 East
Replaced by new bridge

Spencer's Crossing Bridge (Anderson County, Kansas)
(Main design: Pratt through truss)
Built 1885 by the Wrought Iron Bridge Co. Closed to traffic in 2001 and bypassed in 2005
Through truss bridge over Pottawatomie Creek, 0.6 mi. west and 0.1 mi. north of Greeley
Preserved

Spengler Bridge (Columbia County, New York)
Built 1880
Pratt through truss bridge over Kinderhook Creek on Spangler Road
Closed to all traffic

Sperry Bridge (Nez Perce County, Idaho)
Built 1908
Pin-connected Pratt through truss bridge over Potlatch River on Mill Street in Kendrick
Open to traffic

Spillman Creek Bridge (Lincoln County, Kansas)
Built 1912
Through truss bridge over Spillman Creek, 3.7 mi. west of Lincoln
Open to traffic

Splice Creek Road Bridge (Moniteau County, Missouri)
Built or relocated here ca. 1930
Pony truss bridge over Splice Creek on East Splice Creek Road near Lupus
Open to one-lane traffic

Spoetzl Brewery Bridge (Lavaca County, Texas)
Formerly over Rocky Creek on CR 286
Through truss bridge over Boggy Creek on 6th Street
Open to pedestrians and bicycles only

Spoor's Bridge (Waushara County, Wisconsin)
(Main design: Pratt through truss)
Lost Pratt through truss bridge over Fox River on Road
Replaced by a new bridge

Sportsman Road Bridge (Crawford County, Pennsylvania)
Built 1901; arch added 1994
Through truss bridge with added steel arch over East Branch Oil Creek on TR 896
Open to traffic

Sprague Bridge (Juneau County, Wisconsin)
Built 1913; Replaced 1990
Pratt pony truss bridge over Yellow River on 9th St East in Towns of Armenia and Necedah
Intact but closed to all traffic

Spring Commons Bridge (Older) (Mahoning County, Ohio)
Built 1897; Replaced 1911
Lost Pratt through truss bridge over Mahoning River on %th Avenue
Replaced by a new bridge

Spring Creek 1700N Bridge (Iroquois County, Illinois)
Built 1898
Lost through truss bridge over Spring Creek on 1700N Road
Replaced

Spring Creek 1900N Bridge (Iroquois County, Illinois)
Built 1916; replaced 2009
Lost through truss bridge over Spring Creek on 1900N Road
Lost

Spring Creek Branch 1250N Bridge (Iroquois County, Illinois)
Built 1904
Two-span bedstead pony truss bridge over a branch of Spring Creek on 1250N Road
Closed to traffic

Spring Creek Bridge (Elk County, Pennsylvania)
Built 1898; rehabilitated 1997
Through truss bridge over Spring Creek on TR 301
Demolished

Spring Creek Bridge (Blaine County, Oklahoma)
Built ca. 1920
Half-hip Pratt Pony truss bridge over Spring creek on N2570
Open to traffic

Spring Creek Bridge (Republic County, Kansas)
Built ca. 1890
Pony truss bridge over Spring Creek, 1.2 mi. north and 5.0 mi. west of Republic
Closed to all traffic

Spring Creek Road Bridge (Ellis County, Texas)
Built 1890
Through truss bridge over Grove Creek on Spring Creek Road in Waxahachie
Preserved awaiting full restoration

Spring Creek-Jayhawk Rd. Bridge (Marshall County, Kansas)
Built ca. 1910
Pony truss bridge over Spring Creek, Northwest of Home City on abandoned section of Jayhawk Road.
Derelict/abandoned

Spring Hill Road Bridge (Christian County, Missouri)
Built 1914 by the Canton Bridge Co.; demolished 2006
Lost through truss bridge over Finley Creek on Spring Hill Road northeast of Sparta
No longer exists

Spring Hollow Bridge (Morrow County, Oregon)
Built 1909
Pin-connected Pratt through truss bridge over Rhea Creek on Spring Hollow Road
Open to pedestrians only

Spring River CR 1040 Bridge (Lawrence County, Missouri)
Built ca. 1930
Through truss bridge over Spring River on CR 1040
Open to traffic

Spring Valley Bridge (Old) (Bureau County, Illinois)
Replaced 1934
Lost Pratt through truss bridge over Illinois River on Road
Replaced by a new bridge

Spring Valley Road Bridge (Miami County, Kansas)
Built ca. 1920
Pony truss bridge over North Wea Creek, 2.2 mi. north and 2.0 mi. west of Louisburg
Open to traffic

Springfield Road Bridge (Madison County, Illinois)
closed pratt pony truss bridge located just north of UPRR on a private road, with the approaches removed
abandoned pony truss bridge over Cahokia Creek, just north of UPRR on private road?
Closed to all traffic

Springle Creek-Blue River Rd. Bridge (Washington County, Indiana)
Built ca. 1915
Lost Pratt pony truss bridge over Springle Creek on Blue River Road
Replaced by a new bridge

Spunky Creek Bridge (Rogers County, Oklahoma)
Built 1913
Bedstead Pratt pony truss bridge over Spunky Creek on East Apache St. (E0570) in Catoosa
Placed in storage. Will be used as part of a sidewalk project nearby.

Squaw Creek Bridge (Brown County, Kansas)
Built ca. 1950
Pony truss bridge over Squaw Creek, 3.5 mi. east and 4.3 mi. north of Everest
Open to traffic

Squirrel Creek CR 1300N Bridge (Miami County, Indiana)
Lost Pratt pony truss bridge over Squirrel Creek on County Road 1300 North
Replaced by a new bridge

SR 161 Bridge (Franklin County, Ohio)
Lost Pratt through truss bridge over Olentangy River on SR 161
Replaced by a new bridge

SRC - Aqueduct Trestle (Schenectady County, New York)
(Main design: Pratt deck truss)
Built 1904; Abandoned 1941; Removed 1943 for the metal tot be used in the war effort.
Lost Pratt deck truss truss bridge over Mohawk River & Erie Canal on Schenectady Railway Co.
Removed but not replaced

ST - Kennebec River Bridge (Anson/Madison) (Somerset County, Maine)
Bridge over Kennebec River on Pan Am Madison Branch
Closed

ST - Nashua River Bridge (Middlesex County, Massachusetts)
Built 1883
Abandoned pratt through truss bridge over Nashua River on B&M Greenville Branch
Derelict/abandoned

ST - Penobscot River Bridge (Bangor) (Penobscot County, Maine)
Through truss bridge over Penobscot River on ST Rail System in Bangor
Open to traffic

ST - Sebasticook River Bridge (Kennebec County, Maine)
Pratt through truss bridge over Sebasticook River on Springfield Terminal Rail
Open to traffic

ST - Stillwater River Bridge (Orono) (Penobscot County, Maine)
Pratt through truss bridge over Stillwater River on ST Rail System
Open to traffic

St Francis River Bridge (Poinsett County, Arkansas)
(Main design: Warren through truss with all verticals)
Built 1928-29; Replaced 1971
Through truss bridge over St Francis River on Bus US 63
Replaced by a new bridge

ST&P - Great Miami River Bridge (Miami County, Ohio)
Built 1905; Removed 1922
Lost Pratt through truss bridge over Great Miami River on Springfield, Troy, & Piqua Railway
Removed

St. Anthony Street Bridge (Union County, Pennsylvania)
Built 1889; Replaced 1986
Lost Through truss bridge over Buffalo Creek on St. Anthony Street
Replaced by a new bridge

St. Charles Air Line Bridge (Old) (Cook County, Illinois)
Replaced in 1919
Lost Pratt through truss bridge over South Branch Chicago River on Illinois Central RR
Replaced by a new bridge

St. Clair Street Bridge (Preble County, Ohio)
Built 1887 by the Columbia Bridge Works; rehabilitated 1999
Through truss bridge over a branch of Seven Mile Creek on St. Clair Street in Eaton
Open to traffic

St. Claude Avenue Bridge (Orleans Parish, Louisiana)
Built 1919 by the Bethlehem Steel Bridge Corporation as a combination rail/highway bridge; later converted to an all highway bridge
Bascule through truss bridge over the Inner Harbor Navigation Canal (Industrial Canal) on St. Claude Avenue (LA Hwy 46)
Open to traffic

St. Francis Bridge (Dunklin County, Missouri)
Lost Pratt through truss bridge over St. Francis River on US Route 62
Replaced by a new bridge

St. Francis River Bridge (Sherburne County, Minnesota)
Built 1915
Lost Pratt through truss bridge over St. Francis River on CR 64
Replaced by gross concrete eyesore

St. Francis River Bridge (Sherburne County, Minnesota)
Built ca. 1900
Pratt through truss bridge over St. Francis River on a local road at wildlife refuge just off CSAH 5
Intact but closed to all traffic

St. Francis River Route E Bridge (Madison County, Missouri)
Built in 1936. Replacement UCEB opened to traffic in August 2013.
Two-span through truss bridge over St. Francis River on Route E
Replaced by UCEB

St. Joe Bridge (De Kalb County, Indiana)
Built in 1895 by the Massillon Bridge Company.
Lost Pratt through truss bridge over St. Joseph River on Old alignment of CR 63
Removed

St. Johns Bridge (Bremer County, Iowa)
(Main design: Pratt through truss)
Lost Pratt through truss bridge over Cedar River on Road
Replaced by a new bridge

St. Johns Creek Route YY Bridge (Franklin County, Missouri)
(Main design: Warren pony truss)
Originally built 1922-1923 over Dardenne Creek on what would become US 40; removed 1953; re-erected here in 1957
Three-span pony truss bridge over St. Johns Creek on Route YY
Replaced 2016

St. Joseph River Bridge (De Kalb County, Indiana)
Built in 1891 by the King Bridge Company; replaced in 1989
Lost Pratt through truss bridge over St. Joseph River on CR 79
Replaced by new bridge

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