There are 8,378 bridges in this category · Only showing 6,351 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.

WWRC - Ashland Truss Bridge (New Castle County, Delaware)
Built 1907 from one span of Bridge 124 on B&O Wheeling Division; railroad sold to Historic Red Clay Valley 1982
Pratt through truss bridge over Red Clay Creek on Wilmington & Western RR (former Baltimore & Ohio)
Ocasional use by excursion trains

Wyaconda River Bridge (Clark County, Missouri)
Built ca. 1910
Lost through truss bridge over Wyaconda River on CR 358
Destroyed by flooding

Wyaconda River Route C Bridge (Scotland County, Missouri)
Built 1936; rehabilitated 1946
Through truss bridge over Wyaconda River on Route C
Open to traffic

Wyaloosing Creek CR 950N Bridge (Jennings County, Indiana)
Built 1895
Pony truss bridge over Wyaloosing Creek next to replacement bridge on CR 950 North
Replaced, but moved next to new bridge and used for farm access.

Wyanet Bridge (Bureau County, Illinois)
Built 1909
Lost Pratt through truss bridge
No longer exists

Wyburn Road Bridge (Allen County, Indiana)
Built ca. 1895
Lost Pratt pony truss bridge over Bohnke Ditch on Wyburn Road
Replaced by a new bridge

WYNP - Diverging Deck Truss Bridge (Crawford County, Pennsylvania)
Abandoned deck truss bridge over French Creek on Erie Railway
Abandoned

Wyoming County Fairgrounds Bridge (Wyoming County, New York)
Built 1954
Pony truss bridge over Wiscoy Creek on Fairgrounds access road
Open to traffic

Y&OR/Erie Overpass (Columbiana County, Ohio)
Built 1906; Removed 1931
Lost Pratt through truss bridge over Erie Railroad on Youngstown & Ohio River Railroad
Removed

Yakima Greenway Trail - Naches River Bridge (Yakima County, Washington)
Built 1884
Pratt through truss bridge over Naches River on Yakima Greenway Trail in Yakima
Open to pedestrians only

Yantic Falls Railroad Footbridge (New London County, Connecticut)
Built 1904
Pony truss bridge over New England Central Railroad on Footpath
Open to pedestrians only

Yarnell Avenue Bridge (Mahaska County, Iowa)
Lost pratt through truss bridge over North Skunk River on Yarnell Avenue
Removed between 2012 and 2013. May have collapsed beforehand. Support/abutments remain

Yarrington Bridge (Union County, Oregon)
Built 1906, Relocated to site 1925
Through truss bridge over Grande Ronde River on Yarrington Road
Open to traffic

Yates Avenue Overpass (Marshall County, Iowa)
Built 1900 using a truss constructed for railroad use in Ca. 1885
Pony truss bridge over the Union Pacific Railroad (formerly Chicago & Northwestern Railroad) on Yates Avenue
Open to traffic

Yaw Bridge Road Bridge (Madison County, New York)
Built 1874
Pony truss bridge over Unadilla River on Yaw Bridge Road
Closed

Yazoo River Swing Bridge (Yazoo County, Mississippi)
(Main design: Howe through truss)
Abandoned through truss swing bridge over Old Channel Yazoo River in Yazoo City
Abandoned

Yazoo River Swing Bridge (Leflore County, Mississippi)
(Main design: Pratt through truss)
Built 1898; replaced 1925
Lost swing through truss bridge over Yazoo River on Fulton Street
Replaced by a new bridge

Yeakle's Mill Bridge (Franklin County, Pennsylvania)
Built 1888 by the Pittsburgh Bridge Co.; rehabilitated 1949
Pony truss bridge over Little Cove Creek on PA 3026 (Mill Drive)
Replaced by new bridge

Yellow Bayou Bridge (Newton County, Texas)
Built 1930
Through truss bridge over Yellow Bayou on St. John Rd. (CR 2053)
Bypassed by new bridge

Yellow Creek Bridge (Montgomery County, Tennessee)
Built 1893 and moved here about 1937
Lost through truss bridge over Yellow Creek on NFA A458
Replaced by a new bridge

Yellow Creek Bridge (Wayne County, Mississippi)
Built 1910; Bypassed 1983
Abandoned pratt pony truss bridge over Yellow Creek on former Old River Road
Abandoned

Yellow Creek Church Road Bridge (Columbiana County, Ohio)
Rehabilitated 1986
Through truss bridge over Norfolk Southern RR on Yellow Creek Church Rd. (CR 846) in Summitville
Open to traffic

Yellow Creek Park Bridge (Daviess County, Kentucky)
Originally built in 1897 by the Wrought Iron Bridge Co. over South Fork Panther Creek in Owensboro on KY 762, but later restored and relocated to Yellow Creek Park in Thruston, KY.
Pratt through truss bridge over Yellow Creek on a nature/hiking trail in the Yellow Creek Park in Thruston
Open to pedestrians

Yellow Creek TR 290 Bridge (Jefferson County, Ohio)
Through truss bridge over Yellow Creek on TR 290
Open to traffic

Yellow Medicine River Bridge (Yellow Medicine County, Minnesota)
Built 1924
Through truss bridge over Yellow Medicine River on CR A9
Open to traffic

Yellow Mill Bridge (Old) (Fairfield County, Connecticut)
Replaced 1924
Pratt through truss bridge over Yellow Mill Pond on Route 130 Stratford Avenue
Demolished and replaced

Yellow River Bridge (Starke County, Indiana)
Built ca. 1920; rehabilitated 1983
Lost Pratt through truss bridge over Yellow River on CR 500 East in Knox
replaced by a new bridge

Yellow Spring Creek Bridge (Des Moines County, Iowa)
Built 1895; Replaced 2003
Half-hip Pratt pony truss bridge over Yellow Spring Creek on Sperry Road
Replaced by a new bridge

Yellowstone River Bridge (Stillwater County, Montana)
Built 1931
Through truss bridge over Yellowstone River on Frontage Road 115
Open to traffic

Yoder Road Bridge (Allen County, Indiana)
Built ca. 1895
Lost Pratt pony truss bridge over Eightmile Creek (Rebecca Knight Drain) on Yoder Road
Replaced by a new bridge

York Homeplace Bridge (Fentress County, Tennessee)
Construction began 1939, finished July 4, 1940, with Sgt. Alvin C. York as featured speaker.at dedication
Pratt through truss bridge over Wolf River on U.S. 127 at Pall Mall Community
Open to traffic

York Street Bridge (Hunterdon County, New Jersey)
Built 1901, altered 1976, rehabilitated 2008
Pony truss bridge over Hakihohake Creek on York Street in Milford
Open to traffic

York-Hanover Trolley Viaduct (York County, Pennsylvania)
Lost Pratt through truss bridge over Western Maryland & Pennsylvania Railroads on York-Hanover Trolley
Removed but not replaced

Yorktown Park Bridge (Delaware County, Indiana)
Originally built as part of a 2-span bridge at Mahalasville in Morgan County, with this span being moved here in 2005.
Pratt pony truss bridge over Buck Creek on trail
Open to pedestrians

Young's Ford Bridge (Vernon County, Missouri)
Built 1884 by the St. Louis Bridge & Iron Co.
Wrought iron through truss bridge over Clear Creek on Logan Road
Open to traffic

Young's High Bridge (Anderson County, Kentucky)
Built 1889, closed to traffic in November 1985
Cantilevered deck truss bridge over Kentucky River on former Southern Railway
Closed to all traffic

Youngs Bridge (Beaver County, Pennsylvania)
Built ca. 1885
Through truss bridge over Little Beaver Creek on Sylvania Drive
Removed but not replaced

Youngs Creek CR 256 Bridge (Audrain County, Missouri)
Built ca. 1910 replaced 2011
Lost pony truss bridge over Youngs Creek on CR 256
Replaced in 2011

Youngs Creek CR 400S Bridge (Johnson County, Indiana)
Built 1896 by the King Bridge Company; replaced 1993
Lost through truss bridge over Youngs Creek on CR 400 S
Replaced by new bridge

Yura's Farm Road Bridge (Fayette County, Pennsylvania)
Built 1902 by the Champion Bridge Co.
Pony truss bridge over Browns Run on Yura's Farm Road
Open to traffic

YV - Bagby Bridge (Mariposa County, California)
Built 1907;
Lost Pratt through truss bridge over Merced River on Yosemite Valley Railroad
Removed

YV - Hopeton Bridge (Mariposa County, California)
Built 1907
Lost Pratt through truss bridge over Merced River on Yosemite Valley Railroad
Removed

YV - Pleasant Valley Bridge (Mariposa County, California)
Built 1907; Removed when the 1926 Exchequer Dam inundated Pleasant Valley
Lost Pratt through truss bridge over Merced River on Yosemite Valley Railroad
Removed

Zachary Taylor Highway Bridge (Rappahannock County, Virginia)
Built 1929, removed 2012
Pony truss bridge over Thornton River on Zachary Taylor Highway
Removed and in storage

Zack Wheat Drive Bridge (Caldwell County, Missouri)
Built ca. 1910
Pony truss bridge over Long Creek on S.W. Zack Wheat Drive
Open to traffic

Zalma Bridge (Bollinger County, Missouri)
Built 1929-30, replacing a 1900 span that was then moved to Gipsy
Through truss bridge over Castor River on MO 51 at Zalma
Open to one-lane traffic

Zane Bridge (Calhoun County, Iowa)
(Main design: Howe through truss)
Built 1892; Replaced 1914 and moved upriver.
Lost Howe through truss bridge over Raccoon River on Road
Replaced by a new bridge

Zinn Bridge (Miami County, Indiana)
Built ca. 1884; rehabilitated 1975; replaced 1993
Lost through truss bridge over Eel River on CR 500 E
Replaced by new bridge

Zoar Bridge (Tuscarawas County, Ohio)
Built in 1883 by the Wrought Iron Bridge Co,, restored for trail use in 2004.
Pratt through truss bridge over Tuscarawas River on Zoar Valley Trail (old section of Cr-82)
Open to pedestrians

Zolfo Springs Bridge (Hardee County, Florida)
Replaced 1956
Lost Pratt through truss bridge over Peace River on Sr 64 in Zolfo Springs
Replaced by new bridge

Zumwalt Road Bridge (Boone County, Missouri)
Built 1909 by the Missouri Bridge & Iron Co.; replaced 2003
Lost through truss bridge over Cedar Creek on Zumwalt Road
Replaced by a new bridge

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