St. Mary River Bridge, Spanning St. Mary River at Going-to-the-Sun Road, West Glacier, Flathead County, MT

Significance: The St. Mary River Bridge is one of approximately seventeen prominent masonry and concrete structures on Going-to-the Sun Road in Glacier National Park. The 51-mile stretch of scenic road is significant as a unique engineering accomplishment of the early twentieth century, and as the first product of a 1925 cooperative agreement between the National Park Service and the Bureau of Public Roads. Like other structures on the road, the three-span St. Mary River Bridge was constructed using materials native to the park in an effort to make the bridge less obtrusive in the landscape.
Unprocessed Field note material exists for this structure: FN-14
Survey number: HAER MT-84
Building/structure dates: 1934- 1935 Initial Construction