Long Lake Dam Bridge

Photos

Perspective Downstream Side, Looking 160 Degrees Se

Photo taken by Historic American Engineering Record

BH Photo #150847

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)
Quadrangle map:: Long Lake
Average daily traffic (as of 2012): 1,132
Inventory number: BH 34570 (Bridgehunter.com ID)
Inspection report (as of October 2016): 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: 45 (out of 100)
View more at BridgeReports.com