Historic Bridges of the U.S. | Dearborn River High Bridge

Overview

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Photos

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Photo taken by Historic American Engineering Record

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View Looking Northeast, General Elevation

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View Looking South, General Elevation

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View Looking South, Elevation Showing Underside Of Deck

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View Looking Northwest, 3/4 Elevation Showing Approach Girders

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View Looking Southeast, 'Barrel Shot'

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View Looking Southeast, Showing Lower Chord And North Pier

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Truss Seat At South Pier

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Detail View Of Pin Connection And Vertical Compression Member

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Map

Vicinity map

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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-deck 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)
USGS topographic map: Bean Lake
Inventory number: BH 23071 (Bridgehunter.com ID)
Inspection (as of 11/2006): Deck condition rating: Very Good (8 out of 9)
Superstructure condition rating: Very Good (8 out of 9)
Substructure condition rating: Very Good (8 out of 9)
Sufficiency rating: 32.8 (out of 100)
Average daily traffic (as of 2003): 100

Update Log

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

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