Local Information

SR 520 pontoon progress and May movements

Wednesday, May 15, 2013 - 12:21

Contact: Suanne Pelley, WSDOT SR 520 communications, 206-437-5717 (cell)

SEATTLE – Drivers, boaters and residents around Lake Washington should be on the lookout for State Route 520 bridge pontoons moving through the lake this month.

Contractor crews will float one pontoon through the Hiram M. Chittenden Locks in Ballard between 2:30 and 3:30 p.m. this afternoon, Wednesday, May 15. A pontoon already on the lake will be moved from its current staging location to another location on the lake, making way for a pontoon from Aberdeen to use that staging area when it arrives on the lake later this month.

Two of the six pontoons recently constructed in Aberdeen have been towed to a moorage site in Tacoma and a third is on its way later this week. The final two pontoons from the second cycle of pontoons built in Aberdeen will remain moored in Grays Harbor until they are needed for bridge construction.

On Lake Washington, crews will prepare four pontoons from the first cycle built in Aberdeen for additional modifications recommended by an expert review panel in February. The Washington State Department of Transportation is coordinating with floating bridge contractor Kiewit/General/Manson, A Joint Venture, to finalize the details and timeline of the work.

Pontoon tracking details will be posted on the SR 520 Pontoon Tracking Web page.

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