Astoria-Megler Bridge
Facts
- Overview
- Through truss bridge over Columbia River on US 101 in Astoria
- Status
- Open to traffic
- History
- Built 1966
- Builders
- - American Bridge Co. of New York (steel Fabricator)
- DeLong Corporation (Contractor)
- Ivan D. Merchant (Oregon Bridge Engineer)
- Pomeroy Gerwick (Contractor)
- William A. Bugee (Washington Lead Engineer)
- Design
- The Astoria-Megler Bridge is the longest continuous truss bridge in North America and second in length worldwide. The total length of the structure which includes 198 spans of various length and styles is 4.1 miles stretching from Astoria, Oregon to Megler, Washington. The completion of the bridge in 1966 closed the last remaining gap in the Pacific Coast Highway, and made it possible to drive the entire highway from Canada to Mexico on an uninterrupted paved highway.
- Dimensions
-
Length of largest span: 1,232.0 ft.
Total length: 21,677.0 ft.
Deck width: 27.9 ft.
Vertical clearance above deck: 17.2 ft.
- Approximate latitude, longitude
- +46.20389, -123.85583 (decimal degrees)
46°12'14" N, 123°51'21" W (degrees°minutes'seconds") - Approximate UTM coordinates
- 10/433974/5117057 (zone/easting/northing)
- Elevation
- 0.0 ft. above sea level
- USGS topographic map
- Astoria
- Inventory number
- BH 29906 (Bridgehunter.com ID)
- Inspection (as of 10/2007)
- Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Sufficiency rating: 72.0 (out of 100) - Average daily traffic (as of 2006)
- 7,100
Update Log
- November 5, 2008: Updated by Michael Goff
- September 30, 2008: Updated by Michael Goff
- September 29, 2008: Updated name and builders
- June 25, 2008: New photo from Michael Goff
Sources
- Michael Goff - michael [dot] goff [at] odot [dot] state [dot] or [dot] us
- James Baughn - webmaster [at] bridgehunter [dot] com
- Wikipedia
- Astoria-Megler Bridge HAER Webpage