| Fort Benton Bridge | |
| Coordinates: | 47.8169°N -110.6661°W |
| Built: | 1888 |
| Builder: | Milwaukee Bridge & Iron Works
|
| Added: | August 6, 1980 |
| Area: | less than one acre |
| Refnum: | 80002406 |
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.
The bridge has five pin-connected truss spans. The three center spans are Baltimore through trusses each 175feet long. The longer span on the Fort Benton bank is a 225feet-long Camelback through truss bridge built after a 1908 flood destroyed a cantilevered swing span and its central pier. The shortest span is a Pratt through truss which is 75feet long, on the far side from Fort Benton.[1]