Photo Currently Unavailable
West Side of Tooth Rock before Tunnel ConstructionHadlow, Robert W. and Amanda Joy Piets, Hannah Kullberg, Sara Morrissey, Kristen Stallman, Myra Sperley, Linda Dodds. Historic Columbia River Highway Oral History: Final Report (SR 500-261). Salem: Oregon Department of Transportation Research Section. August 2009. 55.Photo Currently Unavailable
President Roosevelt at Toothrock Tunnel, September 28, 1937Hadlow, Robert W. and Amanda Joy Piets, Hannah Kullberg, Sara Morrissey, Kristen Stallman, Myra Sperley, Linda Dodds. Historic Columbia River Highway Oral History: Final Report (SR 500-261). Salem: Oregon Department of Transportation Research Section. August 2009. 44.Status: Open to traffic
History: Built 1936...
Design: Tunnel
Total length: 827.1 ft.
10,000
OR 04555 (Oregon Dept. of Transportation structure number)
BH 30117 (Bridgehunter.com ID)
Structure number: 04555 002 04125
Location: 2.3 MR W. CASCADE LOCKS
Route classification: Principal Arterial - Interstate (Rural) [01]
Length of largest span: 827.1 ft. [252.1 m]
Total length: 827.1 ft. [252.1 m]
Year built: 1936
Main span material: Concrete [1]
Main span design: Tunnel [18]
Status: Open, no restriction [A]
Average daily traffic: 10,000 [as of 1998]
Truck traffic: 23% of total traffic
Roadway alignment appraisal: Equal to present desirable criteria [8]
Scour condition: Bridge not over waterway. [N]