There are 8,065 bridges in this category · Only showing 5,995 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 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 - 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 1982.
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 Brdge (Collin County, Texas)
Houston & Texas Central Railroad, between Dallas and Denison, constructed in the 1870s, acquired by the Southern Pacific Railroad, Texas and New Orleans Railroad
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

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 Pony truss bridge over Spunky Creek on East Apache St. (E0570) in Catoosa
Lost

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

St. Joseph River Bridge (Calhoun County, Michigan)
Built 1906
Through truss bridge over St. Joseph River on 22 1/2 Mile Road
Posted as closed on visit on 5/7/2011

St. Joseph Swing Bridge (Buchanan County, Missouri)
Built 1906
Pennsylvania through truss swing bridge over Missouri River on the Union Pacific Railroad in St. Joseph, MO and Elwood, KS.
Open to traffic

St. Laurent Creek Bridge (Ste. Genevieve County, Missouri)
Built ca. 1920
Pony truss bridge over St. Laurent Creek on Second Street (unmarked) in St. Mary just south of US 61 and just north of the Perry County line
Open to one-lane traffic with a 3 ton weight limit

St. Laurent Creek CR 930 Bridge (Perry County, Missouri)
Built ca. 1910; replaced 2005
Bedstead pony truss bridge over St. Laurent Creek on CR 930 southeast of St. Mary
Replaced by new bridge

St. Louis Avenue Bridge (Jackson County, Missouri)
Built 1914; replaced 2003
Lost skewed Pratt through truss over the KCS Railroad on St. Louis Avenue
Replaced by new bridge on different alignment

St. Louis Bay Bridge (St. Louis County, Minnesota)
Built 1908, Removed 1986
Lost Pratt through truss bridge over St. Louis Bay on Burlington Northern
Removed

St. Marks Road Bridge (Frederick County, Maryland)
Pony truss bridge over Broad Run on St. Marks Road
Open to traffic

St. Mary River Aqueduct Bridge (Glacier County, Montana)
Built 1915 by the Minneapolis Bridge Co.; bypassed 2008
Two-span through truss bridge over St. Mary River on CR 224, also carrying a pair of water pipelines
Closed to traffic, but still carries pipelines

St. Peters Bridge (Franklin County, Indiana)
Built 1916; replaced 1991
Lost three-span through truss bridge over Whitewater River on St. Peter's Road
Replaced by new bridge

Stafford's Ford Bridge (Lawrence County, Indiana)
Built 1897 by the Lafayette Bridge Co.
Through truss bridge over Little Salt Creek on CR 595 East
closed to all traffic

Stagecoach Road Bridge (Jersey County, Illinois)
Through truss bridge over Piasa Creek on Stagecoach Road (TR 154)
Closed to traffic

Stancer Road Bridge (Branch County, Michigan)
Built 1888 by the Massillon Bridge Co.
Through truss bridge over North Coldwater River on Stancer Road
Open to traffic

Stanislaus River Pedestrian Bridge Ripon (Stanislaus County, California)
Pratt through truss bridge over Stanislaus River on Pedestrian Path
Open to pedestrians

Stanton Station Road Bridge (Hunterdon County, New Jersey)
Built 1880; rehabilitated 1990
Through truss bridge over South Branch Raritan River on Stanton Station Road
Open to traffic

Staples Ford Bridge (Jennings County, Indiana)
Built in 1897 by the Lafayette bridge Company; replaced 1995
Lost through truss bridge over Vernon Fork Muscatatuck River on CR 910 W
Replaced by new bridge

State Bridge (Rio Grande County, Colorado)
Built 1907-08 by the Denver Bridge Co.; replaced 1986
Lost through truss bridge over the Rio Grande on CR 17
Replaced by new bridge

State Line Road Bridge (Columbiana County, Ohio)
Built 1914 by the Central Construction Co.; rehabilitated 1970
Pony truss bridge over North Fork Little Beaver Creek on State Line Road (TR 945)
Open to traffic

State Line Road Pony Truss Bridge (Jay County, Indiana)
Built ca. 1905
Lost Pratt pony truss bridge over Scherman Ditch on State Line Road (CR 235E)
Replaced by a new bridge

State Line Road Through Truss Bridge (Jay County, Indiana)
(Main design: Pratt through truss)
Built ca. 1890; replaced 1996
Lost through truss bridge over Wabash River on State Line Road.
Replaced by new bridge

State Route 1032 Bridge (Harrison County, Kentucky)
Built in 1906 by the Champion Bridge Company; replaced 1999
Lost pratt through truss bridge over South Fork of Licking River on Kentucky State Route 1032 in Berry
Bridge has been replaced.

Station Hollow Road Bridge (Dearborn County, Indiana)
Built ca.1880; replaced 1999(?)
Lost Pratt through truss bridge over South Hogan Creek on Station Hollow Road
Removed

Station Road Bridge (Frederick County, Maryland)
Built ca. 1920; rehabilitated 1996
Pony truss bridge over Catoctin Creek on Station Road in Middletown
Open to traffic

Stauffer Road Bridge (Frederick County, Maryland)
Built 1910; rehabilitated 1970; replaced 1998
Lost Pratt pony truss bridge over Israel Creek on Stauffer Road
Replaced by new bridge

Staunton River Bridge (Campbell County, Virginia)
(Main design: Polygonal Warren through truss)
Built 1929
Through truss bridge over Staunton River on Business US 29 in Altavista
Open to traffic

Staunton River Richmond & Danville Railroad Bridge (Charlotte County, Virginia)
Built 1902
Pratt through truss bridge over Staunton River on R&DRR/Staunton River Battlefield Trail
Open to pedestrians only

Steel Bridge (Multnomah County, Oregon)
Built 1912
Vertical-lift through truss bridge over Willamette River on Pacific Highway West & MAX Blue Line in Portland
Open to highway and light rail traffic on upper deck; bicycle/pedestrian and rail traffic on lower deck

Steens Bridge (Lowndes County, Mississippi)
Built 1930 by the Decatur Iron & Steel Co.; Bypassed by a new bridge in 1985
Abandoned pratt through truss bridge over Yellow Creek on former Caledonia Steens Road
Abandoned

Steffey Bridge (Vermilion County, Illinois)
Built 1901, replaced in 2002
Lost Through truss bridge over Salt Fork Vermilion River on TR 10
Replaced by new bridge

Steinhagen Bridge (Warren County, Missouri)
Built 1896 by J.S. McCleary & Sons
Two-span through truss bridge over Big Creek on N. Rock Church Road east of MO 47
Open to one-lane traffic

Steinman Bridge (Wilbarger County, Texas)
Bypassed and left standing in place in 1978
Abandoned through truss bridge on Old FM 2326 over Beaver Creek
Derelict/abandoned