Fort Benton Bridge
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Location | Spans Missouri River, Fort Benton, Montana |
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Coordinates | 47°49′2″N 110°39′38″W / 47.81722°N 110.66056°WCoordinates: 47°49′2″N 110°39′38″W / 47.81722°N 110.66056°W |
Area | less than one acre |
Built | 1888 |
Built by | Milwaukee Bridge & Iron Works; Ryane & Henry |
NRHP reference # | 80002406 |
Added to NRHP | August 6, 1980 |
Fort Benton Bridge spans the Missouri River at the town of Fort Benton, Montana. It was built in 1888. It has also been known as Old Bridge and was listed on the National Register of Historic Places in 1980.
It has five pin-connected truss spans. The three center spans are Baltimore trusses, Baltimore through truss through truss each 175 feet (53 m) long. The longer span on the Fort Benton bank is a 225 feet (69 m)-long Camelback through truss Camelback truss bridge built after a 1908 flood destroyed a cantilevered swing span and its central pier. The shortest span is a Pratt through truss Pratt truss which is 75 feet (23 m) long, on the far side from Fort Benton.
Milwaukee Bridge & Iron Works and Ryane & Henry