Photos
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Photo taken by Historic American Engineering Record |
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Photo taken by Historic American Engineering Record |
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Photo taken by Historic American Engineering Record |
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View Looking Northeast, General Elevation Photo taken by Historic American Engineering Record |
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View Looking Southwest, General Elevation Photo taken by Historic American Engineering Record |
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View Looking Southeast, 3/4 Elevation Photo taken by Historic American Engineering Record |
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View Looking Southeast, Showing Portal Photo taken by Historic American Engineering Record |
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View Looking Southeast, Showing Siphon Pipes Photo taken by Historic American Engineering Record |
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View Looking Northwest, 'Barrel Shot' Photo taken by Historic American Engineering Record |
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View Looking Northwest, From Mid-Bridge Photo taken by Historic American Engineering Record |
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View Showing Manufacturer's Dateplaque And Upper Chord Photo taken by Historic American Engineering Record |
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View Looking Northwest From Deck, Showing Endposts Photo taken by Historic American Engineering Record |
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View Looking Northeast, Detail Of Endpost And Hip Vertical Photo taken by Historic American Engineering Record |
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Detail Of Pin Connection And Lower Chord Photo taken by Historic American Engineering Record |
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View Showing Underside Of Deck And Floor Beams Photo taken by Historic American Engineering Record |
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View Showing Siphon And Concrete Piers Photo taken by Historic American Engineering Record |
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View Showing Siphon Outlet At Irregation Ditch Photo taken by Historic American Engineering Record |
Facts
- Overview
- Two-span through truss bridge over St. Mary River on CR 224, also carrying a pair of water pipelines
- Location
- Glacier County, Montana
- Status
- Open to traffic
- History
- Built 1915 by the Minneapolis Bridge Co.
- Builder
- - Minneapolis Bridge Co.
- Design
- Two double-barreled pin-connected, 6-panel Pratt through trusses
- Dimensions
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Length of largest span: 100.1 ft.
Total length: 201.1 ft.
Deck width: 16.4 ft.
Vertical clearance above deck: 16.3 ft.
- Recognition
- Eligible for the National Register of Historic Places
- Approximate latitude, longitude
- +45.78999, -110.06556 (decimal degrees)
45°47'24" N, 110°03'56" W (degrees°minutes'seconds") - Approximate UTM coordinates
- 12/572628/5071138 (zone/easting/northing)
- USGS topographic map
- Carney
- Inventory number
- BH 23049 (Bridgehunter.com ID)
- Inspection (as of 05/2007)
- Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Poor (4 out of 9)
Substructure condition rating: Poor (4 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 43.1 (out of 100) - Average daily traffic (as of 2003)
- 100
Sources
- HAER MT-103 - Voges Bridge, Spanning Yellowstone River at Grey Bear Road, Big Timber vicinity, Sweet Grass County, MT
- HAER MT-22 - St. Mary River Bridge & Siphon, Spanning St. Mary River, Babb vicinity, Glacier County, MT
- James Baughn - webmaster [at] bridgehunter [dot] com