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Sweetgrass Creek Bridge



Through truss bridge over Sweetgrass Creek on Otter Creek Road
Sweet Grass County, Montana
Open to traffic
Built 1910; Replaced 2009
Through truss
Length of largest span: 89.9 ft.
Total length: 92.9 ft.
Deck width: 15.7 ft.
Vertical clearance above deck: 13.5 ft.
Approximate latitude, longitude
+46.06170, -109.85414   (decimal degrees)
46°03'42" N, 109°51'15" W   (degrees°minutes'seconds")
Approximate UTM coordinates
12/588627/5101540 (zone/easting/northing)
Quadrangle map:
Upper Glaston Lake
Average daily traffic (as of 2002)
Inventory number
BH 23189 (Bridgehunter.com ID)
Inspection report (as of November 2015)
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: 99 (out of 100)
View more at BridgeReports.com


Built 1910 (1,052)
Built during 1910s (8,899)
Lost 2009 (271)
Lost during 2000s (3,773)
Montana (758)
Open (37,295)
Owned by county (19,072)
Span length 75-100 feet (5,941)
Sweet Grass County, Montana (16)
Through truss (13,075)
Total length 75-100 feet (6,054)
Truss (29,785)
Wooden deck (5,898)

Update Log 

  • July 23, 2016: Updated by Luke: Corrected wayward GPS and noted at lost


  • Luke


Sweetgrass Creek Bridge
Posted July 23, 2016, by David Jones (david2jpix [at] yahoo [dot] com)

The information for the bridge located here is incorrect. The bridge that is here crosses Ten Mile Creek and is only about 30 feet long. It is a wood stringer bridge with bolted on guardrails. The information for the bridge that is listed on this page is for somewhere else and I haven't been able to find a physical through truss bridge that is nearly 90 feet long that crosses Sweet Grass Creek. Enclosed is one photo of the present bridge. NBI lists this bridge correctly it appears.