Bridgehunter.com | Long Lake Dam Bridge

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Perspective Downstream Side, Looking 160 Degrees Se

Photo taken by Historic American Engineering Record

Overview: Concrete arch bridge over Spokane River on WA 231
Location: Stevens County, Washington, and Lincoln County, Washington
Status: Open to traffic
History: Built 1949
Builders: - George Stevens (Bridge Engineer)
- Henry Hagman (Contractor)
Design: The bridge is a late example of an open-spandrel reinforced-concrete ribbed deck arch. Considere hinges were used at the skewbacks to relieve stresses in the arch during the construction of the bridge. The bridge has been nominated to the National Register of Historic Places.
(HAER WA-95)
Dimensions: Length of largest span: 200.1 ft.
Total length: 485.9 ft.
Deck width: 24.0 ft.
Recognition: Posted to the National Register of Historic Places
Approximate latitude, longitude: +47.83886, -117.85240 (decimal degrees)
47°50'20" N, 117°51'09" W (degrees°minutes'seconds")
Approximate UTM coordinates: 11/436217/5298741 (zone/easting/northing)
USGS topographic map: Long Lake
Inventory number: BH 34570 (Bridgehunter.com ID)
Inspection (as of 10/2010): Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Good (7 out of 9)
Sufficiency rating: 44.8 (out of 100)
Average daily traffic (as of 2010): 1,167