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South Park Bridge

South Park Bridge construction updates

South Park Bridge - Construction project updates

Construction update #32

Construction's final chapter

March 19, 2014

We've seen it grow and take shape – now we can watch as the South Park Bridge project enters the final phase of construction. The bridge is expected to be substantially complete and reopened to traffic this summer.

Most of the heavy construction is now winding down. This next phase will involve the installation of electrical wiring that will power the bridge. This will be the final highly complex construction milestone prior to opening.

So what does it take to wire a bascule bridge of this size that will be raised and lowered thousands of times during its lifetime?

More than 750,000 feet of electrical wire will be installed - that’s 142 miles of wire, the distance from Seattle to Yakima! Once the installation is complete, a final testing period involving 180 lifts will confirm that the bridge is operationally ready to open. We’ll let you know a specific date when we’re further into the critical testing period.

Look for the community planning to begin soon for a grand opening celebration marking the end of the journey to replace the retired structure.

In the meantime, join us next week, Thursday, March 27, from 6-8 pm at Napoli’s for our 6th slideshow. John Stamets, project photographer, and Tim Lane, Deputy Engineer for the South Park Bridge, will be sharing stories and photos of how construction is progressing. Food and drinks will be provided. Download, print, and share a flyer about the show. (178KB .pdf)


DeAnna Martin
King County Department of Transportation
Community relations planner 206-263-9979

Also see: Archived project updates

Information on the South Park Bridge website is available to people with disabilities in alternate formats upon request by calling 206-477-3839 or 711 for the TTY relay service.

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King County Department of Transportation
DeAnna Martin
201 S. Jackson St.,
Seattle, WA 98104-3856
Voice: 206-477-3835
TTY relay: 711