Historic Bridges of the U.S. | Morrison Street Bridge

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Morrison Bridge

Photo taken by Michael Goff on July 6, 2008

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Morrison Bridge

Photo taken by Michael Goff on July 10, 2008

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Lift Span Deck View

Photo taken by Michael Goff on July 10, 2008

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Morrison Bridge

Photo taken by Michael Goff on July 10, 2008

Overview: Bascule bridge over Willamette River on Morrison Street in Portland
Location: Portland, Multnomah County, Oregon
Status: Open to traffic
History: Built 1958
Builders: - American Bridge Division of the U.S. Steel Co. (Steel Erector)
- Manson Construction (Contractor)
- Moffatt, Nichol and Taylor (Engineers)
- Sverdrup and Parcel (Engineers)
Design: Bascule
Dimensions: Length of largest span: 339.9 ft.
Total length: 759.9 ft.
Deck width: 78.1 ft.
Vertical clearance above deck: 16.6 ft.
Approximate latitude, longitude: +45.51750, -122.66972 (decimal degrees)
45°31'03" N, 122°40'11" W (degrees°minutes'seconds")
Approximate UTM coordinates: 10/525795/5040493 (zone/easting/northing)
USGS topographic map: Portland
Inventory number: BH 29882 (Bridgehunter.com ID)
Inspection (as of 10/2004): Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Very Good (8 out of 9)
Substructure condition rating: Very Good (8 out of 9)
Appraisal: Not deficient
Sufficiency rating: 79.3 (out of 100)
Average daily traffic (as of 2004): 52,267

Morrison Street Bridge

Posted October 25, 2007, by Kevin Boyle (keb [at] obec [dot] com)

Your site lists Clackamas County for this bridge when in fact it is entirely in downtown Portland in Multnomah County.