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St. Mary River Aqueduct Bridge

Photos 

Photo taken by Historic American Engineering Record

View photos at Library of Congress

BH Photo #119467

Map 

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
Closed to traffic, but still carries pipelines
History
Built 1915 by the Minneapolis Bridge Co.; bypassed 2008
Builder
- Minneapolis Bridge Co. of Minneapolis, Minnesota
Design
Two double-barreled pin-connected, 6-panel Pratt through trusses
Dimensions
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
+48.94398, -113.37064   (decimal degrees)
48°56'38" N, 113°22'14" W   (degrees°minutes'seconds")
Approximate UTM coordinates
12/572628/5071138 (zone/easting/northing)
Quadrangle map:
Goose Lake
Average daily traffic (as of 2003)
100
Inventory number
BH 23049 (Bridgehunter.com ID)
Inspection report (as of January 2017)
Overall condition: Good
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Good (7 out of 9)
Deck condition rating: Good (7 out of 9)
Sufficiency rating: 94.6 (out of 100)
View more at BridgeReports.com

Update Log 

  • August 2, 2008: New photos from James Baughn

Sources 

  • HAER MT-22 - St. Mary River Bridge & Siphon, Spanning St. Mary River, Babb vicinity, Glacier County, MT