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Fort Benton Bridge

Chouteau County, Montana
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Bridge in 2004. Missouri River Mile 1.

Photo taken by Mark Frazier in October 2004

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Facts 

Overview
Completed by the Benton Bridge Co. as a toll bridge to connect Judith River Basin trade with the Great Northern RR and Missouri River shipping. Chouteau Co. purchased the bridge in 1896. Vehicle traffic was closed in 1963.
Location
Fort Benton, Chouteau County, Montana
Status
Open to pedestrians
History
Built in 1888 by Benton Bridge Co. as toll bridge. Chouteau County purchased 1896. The swing span was lost to flood 1908, and replaced with fixed span in 1921. Closed to traffic in 1963.
Builders
- Haney & Ryan (Substructure)
- Milwaukee Bridge & Iron Works of Milwaukee, Wisconsin (Original Trusses)
- O.E. Peppard of Missoula, Montana (1908-1925 Timber Stringer & Relocated Parker truss)
Design
(Right descending bank to left): 75-foot Pratt through truss. 3, 175-foot Baltimore through trusses, 225-foot Pratt truss swing span (replaced with Parker through truss).
Dimensions
Length of largest span: 225.0 ft.
Total length: 825.0 ft.
Recognition
Posted to the National Register of Historic Places on August 6, 1980
Also called
Old Bridge
Approximate latitude, longitude
+47.81648, -110.66601   (decimal degrees)
47°48'59" N, 110°39'58" W   (degrees°minutes'seconds")
Approximate UTM coordinates
12/525002/5295957 (zone/easting/northing)
Quadrangle map:
Fort Benton
Land survey
T. 24 N., R. 8 E., Sec. 23
Elevation
2632 ft. above sea level
Inventory numbers
NRHP 80002406 (National Register of Historic Places reference number)
BH 39920 (Bridgehunter.com ID)

Categories 

19th Century (6,139)
Built 1888 (180)
Built during 1880s (1,633)
Chouteau County, Montana (12)
Fort Benton, Montana (1)
Haney & Ryan (1)
Have street view (21,731)
Milwaukee Bridge & Iron Works (23)
Missouri River (116)
Montana (741)
 NR-listed (2,836)
O.E. Peppard (14)
Open to pedestrians (3,494)
Parker through truss (1,154)
Parker truss (1,507)
Pin-connected (3,125)
Span length 175-250 feet (1,796)
Through truss (12,830)
Total length 500-1000 feet (2,507)
Truss (29,324)

Update Log 

  • August 11, 2017: Updated by Christopher Finigan: Added category "Pin-connected"
  • June 3, 2016: Updated by Luke: Added info on the relocated span
  • February 23, 2014: New photos from Jack Schmidt
  • November 9, 2011: Photos imported by Jason Smith
  • April 20, 2010: New Street View added by J.P.
  • February 16, 2009: Added by Mark Frazier

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