Photos
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MLK Viaduct - 1936 Nearly finished viaduct Photo from the Oregon Department of Transportation Website |
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MLK Viaduct - 1936 Photo from the Oregon Department of Transportation Website |
Facts
- Overview
- Stringer bridge over UPRR & Division Street on Oregon 99E in Portland
- Location
- Portland, Multnomah County, Oregon
- Status
- Open to traffic
- History
- Built 1937, Replaced 2008-2009
- Builder
- - Hoffman Construction Co. (Contractor)
- Design
- The original Martin Luther King, Jr., Boulevard (Union Avenue) portion of the structure was built by Hoffman Construction Company of Portland in 1936, at a cost of $459,000. This Roosevelt-era Works Progress Administration project brought many needed jobs to Portland-area residents. The Grand Avenue couplet was added to the viaduct in 1965. The viaducts provide Oregon Route 99E with a grade-separated crossing over the Union Pacific Railroad tracks.
Information from the Oregon Department of Transportation MLK Viaduct Project Website, August 2008 - Dimensions
-
Length of largest span: 60.0 ft.
Total length: 1,639.2 ft.
Deck width: 48.2 ft.
- Also called
- MLK Viaduct
Union Avenue Viaduct - Approximate latitude, longitude
- +45.50583, -122.66083 (decimal degrees)
45°30'21" N, 122°39'39" W (degrees°minutes'seconds") - Approximate UTM coordinates
- 10/526495/5039200 (zone/easting/northing)
- USGS topographic map
- Portland
- Inventory number
- BH 37252 (Bridgehunter.com ID)
- Inspection (as of 10/2007)
- Deck condition rating: Serious (3 out of 9)
Superstructure condition rating: Serious (3 out of 9)
Substructure condition rating: Serious (3 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 2.0 (out of 100) - Average daily traffic (as of 2004)
- 34,711
Sources
- Michael Goff - michael [dot] goff [at] odot [dot] state [dot] or [dot] us
- MLK Viaduct Replacement Project: - Oregon Department of Transportation project website for the replacement of the MLK Viaduct