Rating:
1 vote

Dearborn River High Bridge

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Photos 

Photo taken by Historic American Engineering Record

View photos at Library of Congress

Map 

Facts 

Overview
Deck truss bridge over Dearborn River on CR 300
Location
Lewis and Clark County, Montana
Status
Open to traffic
History
Built 1897 by the King Bridge Co.; rehabilitated 2003
Builder
- King Bridge Co. of Cleveland, Ohio
Design
Pratt half-through truss
Dimensions
Length of largest span: 160.1 ft.
Total length: 251.0 ft.
Deck width: 16.1 ft.
Recognition
Eligible for the National Register of Historic Places
Approximate latitude, longitude
+47.28111, -112.39083   (decimal degrees)
47°16'52" N, 112°23'27" W   (degrees°minutes'seconds")
Approximate UTM coordinates
12/394817/5237341 (zone/easting/northing)
Quadrangle map:
Bean Lake
Inventory number
BH 23071 (Bridgehunter.com ID)
Inspection (as of 09/2012)
Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Very Good (8 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 32.8 (out of 100)
Average daily traffic (as of 2003)
100

Update Log 

  • May 4, 2013: New photo from Luke Harden
  • November 22, 2012: Updated by James Baughn: Assigned to new Pratt half-through truss category
  • July 22, 2008: New photos from James Baughn

Sources 

  • HAER MT-23 - Dearborn River High Bridge, Spanning Dearborn River, Augusta vicinity, Lewis and Clark County, MT
  • James Baughn - webmaster [at] bridgehunter [dot] com
  • Wikipedia
  • Luke