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An open-deck railway bridge in Leflore County, Mississippi. A railway bridge with its track and ties supported on load carrying elements of the superstructure (floor beams, stringers or girders) is called an open deck. When the track rests upon ballast, which is then carried by the superstructure of the bridge, it is called a ballasted deck.
In the deck-type bridge, a wood, steel or reinforced concrete bridge deck is supported on top of two or more plate girders, and may act compositely with them. In the case of railroad bridges, the railroad ties themselves may form the bridge deck, or the deck may support ballast on which the track is laid.
The Niagara Falls Suspension Bridge stood from 1855 to 1897 across the Niagara River and was the world's first working railway suspension bridge.It spanned 825 feet (251 m) and stood 2.5 miles (4.0 km) downstream of Niagara Falls, where it connected Niagara Falls, Ontario to Niagara Falls, New York.
The bridge is of an unusual design. It is an acutely skewed, cast-iron arch. The deck girders are at right angles to the track. It has a width of 165 feet (50 metres) and a square plan of 26 feet 9 inches (8.15 metres) between broad buttress walls in brick with stone abutments.
The rail deck is supported above the arches by twelve 14-inch (360 mm) square columns at 9 feet 11 inches (3.02 m) centres. Suspension rods supported the road deck, and both decks had two layers of diagonally laid three-inch deck timbers on suitable wrought iron cross girders (and rail-bearers in the case of the rail deck).
Bennerley Viaduct Bennerley Viaduct in 2010 Coordinates 52°59′22″N 1°17′55″W / 52.989538°N 1.298532°W / 52.989538; -1.298532 (Bennerley Viaduct) Carries Formerly Great Northern Railway ; now foot traffic Crosses River Erewash Locale Awsworth / Ilkeston (near Nottingham) Maintained by Railway Paths Ltd Heritage status Grade II* listed building Characteristics Total ...
Lake Street Bridge – rail on upper deck (CTA Green & Pink Line) road on lower deck, bascule bridge. McKinley Bridge – rail removed in 1978. Wells Street Bridge – rail on upper deck (CTA Brown & Purple Line Express), road on lower deck, bascule bridge. Iowa – Illinois. Fort Madison Toll Bridge – rail on lower deck, road on upper deck
The Fort Wayne Railroad Bridge, listed as the Pennsylvania Railroad Bridge on the National Register of Historic Places, is a double-deck steel truss railroad bridge spanning the Allegheny River in Pittsburgh, Pennsylvania. The upper deck carries the Fort Wayne Line with two tracks of Norfolk Southern and Amtrak traffic. The lower deck is unused.