This 400' half-viaduct was an engineer's solution to aligning the Historical Columbia River Highway between a steep unstable slope and the Oregon Washington Railroad and Navigation Company main line right-of-way. It is a companion to the East Multnomah Falls Viaduct.
(HAER No. OR-36-J)
Length of largest span: 20.0 ft.
Total length: 401.9 ft.
Deck width: 17.4 ft.
Approximate latitude, longitude
+45.57639, -122.12028(decimal degrees) 45°34'35" N, 122°07'13" W (degrees°minutes'seconds")
OR 00840 (Oregon Dept. of Transportation structure number)
BH 37536 (Bridgehunter.com ID)
Inspection (as of 09/2015)
Deck condition rating: Poor(4 out of 9) Superstructure condition rating: Poor(4 out of 9) Substructure condition rating: Fair(5 out of 9) Appraisal: Structurally deficient
Sufficiency rating: 4.0 (out of 100)
Average daily traffic (as of 2014)
March 31, 2011: New photos from Michael Goff
September 8, 2010: New Street View added by Michael Goff
January 12, 2009: New photos from Michael Goff
October 7, 2008: Added by Michael Goff
Mike Goff - michael [dot] goff [at] hotmail [dot] com