Spiral Bridge
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"Road of Tomorrow" (Queens County, New York)
Built 1939Lost Concrete stringer bridge over 1939 New York World's Fair on Ford's 1939 New York World's Fair ExhibitRemoved
Big Four Bridge (1929) (Jefferson County, Kentucky)
Built 1929 using preexisting stone piers. Interurban traffice ends 1939; Approches scrapped 1974.Rail-Trail six-span through truss railroad bridge over the Ohio River at LouisvilleOpen to pedestrians only
Klondike Ramp (Schenectady County, New York)
Built 1930; Removed 1958Lost Steel stringer bridge over Hillside on FootpathRemoved but not replaced
Little Log House Pioneer Village Spiral Bridge (Dakota County, Minnesota)
Built 1893 over Yellow Bank River but relocated to the Little Log House Pioneer Village in 1989Thacher through truss bridge over a man made pond on a pedestrian pathOpen to pedestrians only
Mt. Vernon Road Spiral Footbridge (Linn County, Iowa)
Reportedly built in the 1960sConcrete rigid frame bridge over Mt. Vernon Road on Pedestrian PathwayOpen to pedestrians only
Roosevelt Island Bridge (New York County, New York)
Built 1955Vertical lift bridge over East River at Roosevelt Island in New YorkOpen to traffic
Spiral Bridge (Dakota County, Minnesota)
Built 1895; Demolished December 1951Lost Parker through truss bridge over Mississippi RiverLost