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The Dalles Bridge

From the southwest

Photo taken by Michael Goff in December 2010

Overview: Through truss bridge over Columbia River on US 197 in The Dalles
Location: City of the Dalles, Wasco County, Oregon, and Klickitat County, Washington
Status: Open to traffic
History: Built 1954
Builders: - Guy F. Atkinson Co. (Contractor)
- Judson Pacific Murphy (Steel Fabrication)
- Ostrander Co. (Contractor)
- Ralph A. Tudor (Engineer)
- Tudor Engineering Co. (Design Firm)
Design: Cantilevered Warren through truss
Dimensions: Length of largest span: 576.1 ft.
Total length: 3,345.3 ft. (0.6 mi.)
Deck width: 24.0 ft.
Vertical clearance above deck: 15.7 ft.
Recognition: Eligible for the National Register of Historic Places
Approximate latitude, longitude: +45.61028, -121.13944 (decimal degrees)
45°36'37" N, 121°08'22" W (degrees°minutes'seconds")
Approximate UTM coordinates: 10/645074/5052431 (zone/easting/northing)
USGS topographic map: The Dalles South
Inventory numbers: OR 06635Q (Oregon Dept. of Transportation structure number)
BH 30173 (Bridgehunter.com ID)
Inspection (as of 08/2010): Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 43.4 (out of 100)
Average daily traffic (as of 2010): 8,400