This 860' half-viaduct was an engineer's solution to aligning the Historic 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 West Multnomah Falls Viaduct
HAER No. OR-36-G
Length of largest span: 9.8 ft.
Total length: 860.9 ft.
Deck width: 17.4 ft.
Approximate latitude, longitude
+45.57861, -122.11333(decimal degrees) 45°34'43" N, 122°06'48" W (degrees°minutes'seconds")
OR 00841 (Oregon Dept. of Transportation structure number)
BH 37534 (Bridgehunter.com ID)
Inspection report (as of September 2017)
Overall condition: Fair
Superstructure condition rating: Fair(5 out of 9)
Substructure condition rating: Fair(5 out of 9)
Deck condition rating: Fair(5 out of 9)
Sufficiency rating: 30.2 (out of 100) View more at BridgeReports.com
July 5, 2011: New photos from Michael Goff
September 8, 2010: New Street View added by Michael Goff