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I-5 - Skagit River Bridge Replacement

This project is complete.
Thumbnail I-5 Skagit River Bridge Replacement Vicinity Map
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View pictures of the permanent span replacement
View Flickr pictures of design and construction of the permanent replacement span


Spring 2014

  • This project is complete.
  • Crews installed and opened the new span on Sept 15, 2013.
  • Watch video of the span swap.
  • Crews installed the girders for the new span the week of Aug. 12. 

Crews installed temporary spans and reopened the bridge to traffic on Wednesday, June 19 - less than four weeks after an incident involving an oversize load caused a portion of the bridge to collapse.

Now crews have completed building a permanent span, which was installed Sept 15.

On May 23, 2013, a portion of the bridge collapsed into the Skagit River near Mount Vernon after being struck by an oversize load. More than 71,000 drivers use this stretch of I-5 each day.

Why is WSDOT replacing a portion of the I-5 Skagit River Bridge?
WSDOT replaced the section of the bridge that collapsed to restore restore traffic to normal highway speeds across the river. 

Max J. Kuney Construction of Spokane was awarded the contract June 18, 2013 to build the permanent span for the bridge. The total current cost of the project is $8.5 million.

The contractual deadline to open the new permanent span to traffic was October 1.

The End Result
With construction complete on the permanent span, drivers can travel I-5 over the Skagit River between Burlington and Mount Vernon at normal highway speeds.

Project Benefits

  • Restores critical economic link on I-5.
  • Relieves traffic from local routes.

What is the project timeline?

  • June 18: WSDOT awarded the emergency permanent span replacement project to Max J Kuney of Spokane
  • June 19, 2013: WSDOT completed installation of two temporary spans and reopened I-5 to traffic.
  • Work began on June 20th and is expected to be completed by late September 2013 (includes removal of temporary span).
  • Saturday night, Sept. 14, crews closed I-5 and detoured traffic to remove the temporary bridge and move the new, permanent span into place. The new span opened to traffic on Sunday Sept. 15.


Financial Information

Federal Emergency Relief Funds: $8.5 million

This Design-Build contract was awarded to Max J. Kuney Construction for the design and construction of a permanent replacement of Span 8. The total current cost of the project is $8.5 million (Federal Emergency Relief Funds). This work included the removal of the two temporary spans and the installation of the permanent span. 

How can I get more information?
Communications, Travis Phelps
15700 Dayton Avenue North
Seattle WA, 98133


Communications, Bart Treece
15700 Dayton Avenue North
Seattle WA, 98133

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