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Baltimore truss

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The Baltimore truss is a sub-type of the Pratt truss, but differs by the addition of half-length struts or ties in the top, bottom, or both parts of the panels. It was first used on the railroads in the 1870's

Walnut Street Bridge (Dauphin County, Pennsylvania)
Built 1890; Streetcar traffic begins 1894; Rehabilitated in 1911 by Phoenix Bridge Co.; Streetcar traffic ends 1936; Closed 1972 due to damage from Hurricane Agnes; Several spans destroyed by ice jam 1996
Through truss bridge over Susquehanna River, (east channel) in Harrisburg
Open to pedestrians

Washington Street Bridge (Old) (New Castle County, Delaware)
Built 1893; Replaced 1921
Lost Baltimore deck truss bridge over Brandywine Creek on Washington Street
Replaced by a new bridge

Washita River Bridge (Grady County, Oklahoma)
Through truss bridge over Washita River on former Chicago, Rock Island & Pacific Railroad (now UP)
Open to traffic

Watauga River Wilbur Dam Rd Bridge (Carter County, Tennessee)
Built 1942
Four-span deck truss bridge over Watauga River on Wilbur Dam Rd (CR 2688)
Open to traffic

Weedsport Bridge (Cayuga County, New York)
Lost Baltimore through truss bridge over Seneca River on NY34
Replaced by a new bridge

West Avenue Bridge (Mahoning County, Ohio)
Built 1929; closed to traffic in 1997
Through truss bridge over Mahoning River on West Avenue in Youngstown
Closed to all traffic

Western Gateway Trail - Siemens Rail Crossing (Gogebic County, Michigan)
Built 1896
Baltimore through truss bridge over Gogebic County Trail #2 on Western Gateway Trail
Open to pedestrians only

WLE - Chartiers Creek Bridge #3 (Allegheny County, Pennsylvania)
Deck truss bridge over Chartiers Creek, Pennsylvania Industrial Railroad (formerly P&WV RR) on Wheeling & Lake Erie (Nee PRR)
Open to traffic

WM - 21st Bridge (Allegany County, Maryland)
Through truss bridge over CSX Transportation (former Baltimore & Ohio) and 21st Bridge Road on former Western Maryland Railway
Closed to all traffic

WM - C&O Canal Bridge #4 (Allegany County, Maryland)
Built 1905
Abandoned Baltimore through truss bridge over Chesapeake and Ohio Canal & Towpath on Western Maryland West Subdivision

WM - Low Line Crossing (Morgan County, West Virginia)
Built 1906 by the Pennsylvania Steel Co.
Abandoned baltimore through truss bridge over Low Line Road (fmr B&O Low Line) on Western Maryland West Subdivision

WMSR/GAP - US-40 Overpass (Allegany County, Maryland)
Built 1910 ca
Through truss bridge over US 40 on WMRR
Open to trains and pedestrians

Wood Road Bridge (Steuben County, New York)
Built 1897; rehabilitated 2004
Pin-connected Baltimore through truss bridge over Cohocton River on Wood Road
Open to traffic