Photos
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Grand Avenue Viaduct Deep Plate Girder is the 1960 Modification for Freeway Construction Photo taken by Michael Goff in September 3, 2008 |
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Grand Avenue Viaduct - Information Plaque Photo taken by Michael Goff in September 3, 2008 |
Facts
- Overview
- Girder bridge over UPRR & I-84 on Grand Avenue in Portland
- Location
- Portland, Multnomah County, Oregon
- Status
- Open to traffic
- History
- Built 1908; Modified in 1960 for the construction of I-84
- Builder
- - International Contract Co. (Contractor)
- Design
- An early example of a plate girder bridge in Oregon. Two spans were modified in 1960 to allow for Interstate 84 to pass under the structure.
- Dimensions
-
Length of largest span: 113.9 ft.
Total length: 352.1 ft.
Deck width: 40.0 ft.
- Approximate latitude, longitude
- +45.52556, -122.66056 (decimal degrees)
45°31'32" N, 122°39'38" W (degrees°minutes'seconds") - Approximate UTM coordinates
- 10/526507/5041391 (zone/easting/northing)
- USGS topographic map
- Portland
- Inventory number
- BH 37358 (Bridgehunter.com ID)
- Inspection (as of 01/2007)
- Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 62.6 (out of 100) - Average daily traffic (as of 2004 41051)
- 21,630
Sources
- Michael Goff - michael [dot] goff [at] odot [dot] state [dot] or [dot] us