6th Street, US-730 (Historic Columbia River Highway) Over Umatilla River in Umatilla: Umatilla County, Oregon, United States
Concrete Open Spandrel Deck Arch, Fixed and Approach Spans: Concrete T-Beam, Fixed
Length: 432 ft.
Main Span: 110 ft.
Roadway: 30.2 ft.
Main Spans: 3
and Conde Balcom McCullough (Oregon State Highway Commission)
I-82 (Eastbound) and US-295 Over Columbia River in Umatilla: Umatilla County, Oregon and Benton County, Washington, United States
Metal Cantilever Rivet-Connected Warren Through Truss, Fixed and Approach Spans: Metal Pin and Hanger Deck Girder, Fixed
Length: 3,380 ft.
Main Span: 600 ft.
Roadway: 27.6 ft.
Main Spans: 5
By: American Bridge Company of New York, New York
and Tudor Engineering Company of San Francisco, California
Special Bridge Conditions Legend: R - Former location of relocated bridge.
! - At risk for demolition or destruction.
X - Confirmed demolished or
- Dismantled and/or in storage.
Severe loss of historic integrity due to alteration.