There are 8,350 bridges in this category · Only showing 6,320 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.

Sibley Railroad Bridge (Old) (Jackson County, Missouri)
(Main design: Whipple through truss)
Built 1887-88 as a three-span Whipple through truss, replaced 1915
Three-span through truss railroad bridge over the Missouri River at Sibley
Replaced

Side Ditch Entrance Bridge (Dubuque County, Iowa)
Built 1900
Pony truss bridge over Side Ditch on an entrance road
Open to traffic

Sidney Bridge (Shelby County, Ohio)
Built 1906 by the Champion Bridge Co.; rehabilitated 1973; bypassed ca. 1997
Through truss bridge over Great Miami River on Childrens Home Road in Sidney
Open to pedestrians only

Sigsbee Bridge (Shelby County, Missouri)
Built ca. 1910
Pony truss bridge over South Fabius River on CR 177 beyond the end of Spur Route J
Open to traffic

Silex Bridge (Lincoln County, Missouri)
Replaced 2005
Lost through truss bridge over North Fork Cuivre River on Silex Road just south of Silex
Replaced by a new bridge

Silver Bridge (Franklin County, Arkansas)
Built ca. 1912 by the Lakeside Bridge & Steel Co.; rehabilitated 1976; closed to traffic Nov. 2006; Reopened Nov 2007
Three-span through truss bridge over Mulberry River on CR 67 (Wire Road) just north of I-40 in Mulberry
Open to traffic with 3 Ton weight Limit

Silver Creek Bridge (Cedar County, Missouri)
Built ca. 1908 by the Canton Bridge Co.
Lost pony truss bridge over Silver Creek on CR 1651
No longer exists

Silver Creek Bridge (Minnehaha County, South Dakota)
Built 1938, closed to traffic in 2000s, replaced in 2012
Through truss bridge over Silver Creek on 255th Street, 3 mi. north and 1 mi. east of Renner
Removed but not replaced

Silver Creek Murphy Road Bridge (Clark County, Indiana)
Built ca.1905; Replaced 1988
Lost Pratt pony truss bridge over Silver Creek on Murphy Road, CR 37
Replaced by a new bridge

Silver Creek Prather Road Bridge (Clark County, Indiana)
Replaced 1994
Lost through truss bridge over Silver Creek on Prather Road
Replaced by new bridge

Simmons Bridge (Live Oak County, Texas)
Abandoned half-hip Pratt pony truss bridge over Nueces River on FM 1042
Abandoned

Simpson Bridge (Armstrong County, Pennsylvania)
Built ca. 1900
Pony truss bridge over Huling Run on TR 396
Open to traffic

Simpson Bridge (Glenn County, California)
(Main design: Pratt through truss)
Built 1883
Lost Pratt through truss bridge over Stony Creek on Newville Road
Lost

Simpson Bridge (Muscatine County, Iowa)
Built 1895; Removed 1941
Lost Pratt through truss bridge over Cedar River on Lucas Grove Road
Replaced by a new bridge

Simpson Creek Bridge (Jay County, Indiana)
Built ca.1895
Abandoned bedstead Pratt pony truss bridge over Simpson Creek on Abandoned section of CR 500S
Abandoned

Simpson Creek Bridge (Fayette County, Indiana)
Built 1899
Lost Bedstead Pratt pony truss bridge over Simpson Creek on County Road 500 East
Replaced by a new bridge

Simpson Road Bridge (Fayette County, Pennsylvania)
Built 1905 by the York Bridge Co.
Pony truss bridge over Dunlap Creek on Simpson Road in Hiller
Closed to all traffic

Simpsons Mill Road Bridge (Frederick County, Maryland)
Built ca. 1890; rehabilitated 1998
Through truss bridge over Little Pipe Creek on Simpsons Mill Road
Open to traffic

Sims Place Bridge (Ralls County, Missouri)
Pony truss bridge over Mills Creek on Sims Place
Open to traffic on a private drive

Singer Bridge (Miller County, Missouri)
Built 1913 by the Missouri Bridge & Iron Co.
Through truss bridge over Tavern Creek on Singer Bridge Road (CR 52-60) just off MO 52 near St. Elizabeth
Open to one-lane traffic on a gravel road

Singer Ditch CR 800S (Knox County, Indiana)
Built c. 1905; Replaced 1990
Lost Pratt pony truss bridge over Singer Ditch on CR 800S
Replaced by a new bridge

Singing Bridge (Middlesex County, Connecticut)
Built 1925 by the American Bridge Co.; rehabilitated 2004
Through truss bridge over Patchaug River on US 1 in Westbrook
Open to traffic

Singleton Ditch-Chase St. Bridge (Lake County, Indiana)
Built ca. 1905
Lost Pratt pony truss bridge over Singleton Ditch on Chase Street
Replaced by a new bridge

Singleton Ditch-Monon Road Bridge (Lake County, Indiana)
Built ca. 1900
Lost Half-hip Pratt pony truss bridge over Singleton Ditch on Monon Road
Replaced by a new bridge

Sioux City Elevated Railway (Woodbury County, Iowa)
Built 1891, Service ended 1899; Removed 1900
Lost Pratt through truss & steel stringer viaduct over City Streets on Sioux City Elevated Railway
Removed

Sipe Ditch Bridge (Jay County, Indiana)
Built ca. 1900
Lost Bedstead Pratt pony truss bridge over Sipe Ditch (Kinsey Run) on County Road 300 West
Replaced by a new bridge

Six Mile Creek Bridge (Rush County, Indiana)
Built ca.1900; replaced in 1991
Lost Pratt through truss bridge over Six Mile Creek on CR 1100N
Replaced by new bridge

Six Mile Creek Bridge (Rush County, Indiana)
Built in 1894 by the Toledo Bridge Company; replaced in 1989
Lost Pratt through truss bridge over Six Mile Creek on CR 800N
Replaced by new bridge

Six Mile Creek Bridge CR 51 W (Clay County, Indiana)
Built c. 1900
Bedstead Pratt pony truss bridge over Branch Six Mile Creek
Removed but not replaced

Six Mile Creek Road Bridge (Shiawassee County, Michigan)
Built 1886
Through truss bridge over Shiawassee River on Six Mile Creek Road
Closed to all traffic

Six Mile Creek- CR 900E Bridge (Northern one) (Hancock County, Indiana)
Built ca.1905; replaced in 1991
Lost Pratt through truss bridge over Six Mile Creek on CR 900E
Replaced by new bridge

Six Mile Creek-CR 325N Bridge (Hancock County, Indiana)
Built ca. 1900
Lost Pratt pony truss bridge over Sixmile Creek on County Road 325 East
Replaced by a new bridge

Six Mile Creek-CR 900E Bridge (Southern one) (Hancock County, Indiana)
Built ca.1900; replaced in 1991
Lost Pratt through truss bridge over Six Mile Creek on CR 900E
Replaced by new bridge

Six Span Bridge (Elkhart County, Indiana)
Replaced in 1968 and again in 2011
Lost Pratt through truss bridge over St. Joseph River on Six Span Road/County Road 17
Replaced by a new bridge

Sixes Bridge Road Bridge (Frederick County, Maryland)
Built 1910; rehabilitated 1995
Two-span through truss bridge over Monocacy River on Sixes Bridge Road
Open to traffic

Sixth Street Bridge (Greene County, Arkansas)
Built 1934; rehabilitated 1995; removed sometime after 1997
Lost pony truss bridge over Eight Mile Creek on North Sixth Street in Paragould
No longer exists

Sixth Street Bridge (Kent County, Michigan)
Built 1886 by the Massillon Bridge Co.; rehabilitated 1978
Through truss bridge over Grand River on Sixth Street in Grand Rapids
Open to traffic

Sixth Street Bridge (San Francisco County, California)
Built in 1891, Removed in 1965
Lost Pratt through truss bridge over Mission Creek (China Basin) on Sixth Street
No longer exists

Sixth Street Viaduct (Des Moines County, Iowa)
Built 1886; Enhanced 1903; Replaced 1993
Lost Pratt through truss bridge over Over BNSF Railroad & Valley Street on 6th Street in Burlington
Replaced by new bridge

Skaggs Bridge (Pulaski County, Missouri)
Replaced by the Pikes Peak Bridge in 1932
Lost multi-span through truss bridge over Gasconade River between Crocker and Waynesville
Replaced by new bridge

Skalall Creek Bridge (Tulsa County, Oklahoma)
Built ca. 1910
Pony truss bridge over Skalall Creek on 176th St. N. (E0420) in Skiatook
Replaced by a new bridge

Sketo Bridge (McLean County, Kentucky)
Lost pony truss bridge over Cypress Creek on KY 85
Collapsed. Replaced by new bridge.

Ski Bowl Road Bridge (Greene County, New York)
Built 1935; rehabilitated 1962
Through truss bridge over Schoharie Creek on Ski Bowl Road in Hunter
Open to pedestrians only

Skillet Fork Bridge (Marion County, Illinois)
Built 1915
Through truss bridge over Skillet Fork on CH 30 (Kell Road)
Open to traffic

SKOL - Arkansas River Bridge (Oxford) (Sumner County, Kansas)
Built 1902, Destroyed by flooding ca. 2009
Pratt through truss bridge over Arkansas River on former SKOL Railroad, ex-ATSF
Destroyed by flooding

SKOL - Big Hill Creek Bridge (Montgomery County, Kansas)
Built 1899, Relocated Here 1925
Pratt through truss bridge over Big Hill Creek on South Kansas and Oklahoma Railroad.
Open to railroad traffic

SKOL - Fall River Bridge (Wilson County, Kansas)
Built 1905 for the St. Louis-San Francisco Railway
Pratt Through truss bridge over Fall River on Abandoned South Kansas & Oklahoma Railroad


SKOL - Fall River Bridge (Fredonia) (Wilson County, Kansas)
Built 1900
Pratt Through truss bridge over Fall River on South Kansas & Oklahoma Railroad in Fredonia
Open to traffic

SKOL - Neosho River Bridge (Chanute) (Neosho County, Kansas)
Built 1898
Pratt Through truss bridge over Neosho River on South Kansas & Oklahoma Railroad
Open to traffic

SKOL - Verdigris River Bridge (Benedict) (Wilson County, Kansas)
Built 1900
Pratt Through truss bridge over Verdigris River on Abandoned South Kansas & Oklahoma Railroad
Intact but closed to all traffic

SKOL - Verdigris River Bridge (Independence) (Montgomery County, Kansas)
Built 1902
Through truss bridge over Verdigris River on South Kansas & Oklahoma Railroad
Open to traffic

SKOL - Verdigris River Bridge (Neodesha) (Wilson County, Kansas)
Built 1905
Pratt Through truss bridge over Verdigris River on South Kansas & Oklahoma Railroad
Open to traffic

SKOL - Walnut River Bridge (Cowley County, Kansas)
Built 1903, Approach Rebuilt 1925
Pratt through truss bridge over Walnut River on South Kansas & Oklahoma Railroad
Open to traffic

Skookumchuck River Bridge (Lewis County, Washington)
Built 1928
Through truss bridge over Skookumchuck River on WA 507 in Centralia
Open to traffic

Skull Creek Bridge (Payne County, Oklahoma)
Built 1922
Pony truss bridge over Skull Creek on N3520 Norfolk in Cushing
Open to traffic

Skunk Hollow Road Bridge (Logan County, Illinois)
Built 1904
Through truss bridge over Kickapoo Creek on Skunk Hollow Road
Open to traffic

Skunk River Bridge (Des Moines County, Iowa)
Built 1888; Removed ?
Lost Pratt through truss bridge over Skunk River on Road
Replaced by a new bridge

Slash Creek Bridge (Shelby County, Indiana)
Built ca.1900
Pony truss bridge over Slash Creek on vacated section of CR 900S (Walnut St.)
In use on private lane

Slate Creek Bridge (Idaho County, Idaho)
Built 1932
Pony truss bridge over Slate Creek on CR 95
Open to traffic

Slates Mill Bridge (Lackawanna County, Pennsylvania)
Built 1885 by the King Iron Bridge Co.
Through truss bridge over South Branch Tunkhannock Creek on TR 439 at Lackawanna State Park
Removed but not replaced

Slay Bridge (Clarke County, Mississippi)
Bypassed by a new bridge in 1975
Abandoned pratt pony truss bridge over Bucatunna Creek on former CR 670 (Linton Rd)
Abandoned

Slayden Bridge (Gonzales County, Texas)
Built 1907
Through truss bridge over San Marcos River on CR 232
Open to traffic

Slough Creek Bridge (Dyer County, Tennessee)
Built 1950
Lost pony truss bridge over Slough Creek on Jackson Road
Replaced by a new bridge

Slough Creek CR 480W Bridge (Jasper County, Indiana)
Built ca. 1910
Lost Pratt pony truss bridge over Slough Creek on County Road 480 West
Replaced by a new bridge

SLR - Little Androscoggin River Bridge (Mechanic Falls) (Androscoggin County, Maine)
Pratt deck truss bridge over LITTLE ANDROSCOGGIN RIVER on St. Lawrence and Atlantic Railroad Company
Open to traffic

SLR - Royal River Bridge (Cumberland County, Maine)
Through truss bridge over Royal River on Railroad (SLR)
Open to traffic

Smalling Bridge (Carter County, Tennessee)
Built 1941
Pratt through truss bridge over Watauga River on Smalling Road
Open to traffic, one-lane bridge

Smart Ditch Bridge (Jackson County, Indiana)
Built 1908; replaced 1992
Lost pony truss bridge over Smart Ditch on IN 39
Replaced by new bridge

Smart Ditch CR 600E Bridge (Jackson County, Indiana)
Pratt through truss bridge over Smart Ditch on County Road 600 East
Closed

Smart Ditch CR 700E Bridge (Jackson County, Indiana)
Built ca. 1900
Lost Pratt pony truss bridge over Smart Ditch on County Road 700 East
Replaced by a new bridge

Smart Ditch SR 39 Bridge (Jackson County, Indiana)
Built ca. 1900
Lost Pratt pony truss bridge over Smart Ditch on State Road 39
Replaced by a new bridge

Smiley Bayou Bridge (Yell County, Arkansas)
Built 1924 by the International Steel & Iron Co.
Abandoned through truss bridge over Smiley Bayou on CR 54
Abandoned

Smith Bridge (Union County, Georgia)
Bridge was replaced in 1985. Road was paved by TVA during this time.
Lost Pratt through truss bridge over Nottely River on John Smith Road
Replaced by new bridge

Smith Chapel Road Bridge (Walker County, Alabama)
Built 1915, closed June 2013, replaced in summer of 2014
Pony truss bridge over Mill Creek on Smith Chapel Road in Carbon Hill
Replaced by a new bridge

Smith Creek Road Bridge (Moniteau County, Missouri)
Built ca. 1930
Pony truss bridge over Smith Creek on Smith Creek Road southwest of California
Open to traffic

Smith Crossing Bridge (Midland County, Michigan)
Built 1907
Through truss bridge over Tittabawassee River on Smith Crossing Road
Closed to all traffic

Smith River Bridge (Cascade County, Montana)
Built 1908
Through truss bridge over Smith River on CR 410
Open to traffic

Smith Road Bridge (Crawford County, Pennsylvania)
Built ca. 1888 by Wrought Iron Bridge Co.; replaced 2012
Lost pony truss bridge over a branch of Conneaut Creek on TR 406 (Smith Road)
Replaced by a new bridge

Smith Street Bridge (Providence County, Rhode Island)
Built 1872; Replaced ca. 1981
Lost Pratt through truss bridge over Northeast Corridor (Amtrak) on Smith Street (US 44)
Replaced by new bridge

Smith's Bridge (Will County, Illinois)
Buiilt 1911; Replaced 1932
Lost Pratt through truss bridge over Des Plaines River on Road
Replaced by a new bridge

Smithfield Avenue Bridge (Providence County, Rhode Island)
Replaced ca. 1984
Lost Pratt through truss bridge over Northeast Corridor (Amtrak) on Smithfield Avenue (RI 126)
Replaced by new bridge

Smithland Bridge (Woodbury County, Iowa)
Lost Pratt through truss bridge over Little Sioux River on Road
Replaced by a new bridge

Smithton Bridge (Westmoreland County, Pennsylvania)
Built 1900 by the Pittsburgh Bridge Co.; rehabilitated 1935 and 1964; replaced 1986
Lost cantilevered through truss bridge over Youghigheny River on PA 981 in Smithton
Replaced by new bridge

Smokey Road Overpass (Fulton County, Illinois)
Built 1917
Pony truss bridge over the BNSF Railroad on E Smokey Rd
Open to traffic

Smoky Hill River Bridge (McPherson County, Kansas)
Built 1919; rehabilitated 1989
Through truss bridge over Smoky Hill River on 1st Street
Open to pedestrians only

Smoky Hill River Bridge (Dickinson County, Kansas)
Built 1915
Through truss bridge over Smoky Hill River on Oat Road, 2.5 mi. east and 0.8 mi. south of Detroit
Demolished

Smolen-Gulf Covered Bridge 35-04-64 (Ashtabula County, Ohio)
Built 2008
Modern covered bridge over the Ashtabula River on CR 25 near Ashtabula
Open to traffic

Smothers Creek Bridge (Lavaca County, Texas)
Built 1930
Through truss bridge over Smothers Creek on CR 183
Open to traffic

Smothers Creek CR 250E (Daviess County, Indiana)
Built ca. 1900; Removed but not replaced
Lost Pratt through truss bridge over Smothers Creek on CR 250 E
Removed but not replaced

Smyth Road Bridge (Oconto County, Wisconsin)
Built 1928
Through truss bridge over North Branch Oconto River on Smyth Road
Open to traffic

Snag Creek Bridge (Cedar County, Missouri)
Built 1915 by the Canton Bridge Co.
Pony truss bridge over Snag Creek on CR 1101
Open to traffic

Snake Creek Bridge (Tulsa County, Oklahoma)
Built 1909
Through truss bridge over Snake Creek on 201st St. S.
Intact but closed to all traffic

Snake Creek Bridge (Blaine County, Montana)
Built 1911
Pony truss bridge over Snake Creek on CR 323
Open to traffic

Snake River Bridge (Teton County, Wyoming)
Built 1910; rehabilitated 1960
Pratt through truss bridge over Snake River on CR 22-11 in Hoback
Open to traffic

Snake River Bridge (Nome Census Area, Alaska)
Replaced
Lost Pratt through truss bridge over Snake River on Bob Blodgett Highway
Replaced by a new bridge

SNETT - Triad Bridge (Worcester County, Massachusetts)
Abandoned Pratt deck truss girder bridge over Blackstone River, P&W Providence Main on Southern New England Trunkline Trail
Derelict/abandoned

Sni-A-Bar Creek Route H Bridge (Jackson County, Missouri)
Built 1929
Pratt through truss bridge over Sni-A-Bar Creek on Route H
Lost

Snider Bridge (Adams County, Iowa)
Built 1885 by Reeve, Ward and Keepers of Clinton, Iowa
Pony truss bridge over Kemp Creek on 220th Street, west of Corning
Open to traffic

Snoqualmie Falls Motel Covered Bridge (King County, Washington)
Built 1986
Pratt through truss bridge over Railroad Avenue (Washington State Route 202)


Snoqualmie Valley Trail - Reinig Bridge (King County, Washington)
Built 1916; Abandoned 1980; Converted to pedestrian use
Pratt through truss bridge over Snoqualmie River on pedestrian walkway
Open to pedestrians

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