Photo 

Marquam Bridge

July 6, 2008

Photo taken by Michael Goff in July 2008

View high-res version

Facts 

Overview
Deck truss bridge over Willamette River on I-5 in Portland
Location
Portland, Multnomah County, Oregon
Status
Open to traffic
History
Built 1966, Seismic Retrofit 1996
Builders
- American Bridge Co. of New York (Steel Erectors)
- Oregon State Highway Department (Engineers)
- Peter Kiewit & Sons (Contractor)
Design
Deck truss
Dimensions
Length of largest span: 440.0 ft.
Total length: 1,044.0 ft.
Deck width: 57.0 ft.
Vertical clearance above deck: 15.33 ft.
Inventory number
BH 29880 (Bridgehunter.com ID)

Update Log 

  • July 8, 2008: Updated by Michael Goff
  • July 7, 2008: New photo from Michael Goff

Sources 

  • James Baughn - webmaster [at] bridgehunter [dot] com
  • Michael Goff - michael [dot] goff [at] odot [dot] state [dot] or [dot] us