520 Bridge pontoon to go through the Ballard Locks this weekend

If you’re planning a trip to the Locks tomorrow, you might want to check out the first 520 bridge pontoon as it makes its way through the Locks to Lake Washington.

Tugboats push the pontoon from its origin in Aberdeen on July 30. Photo: Washington State Department of Transportation

The huge concrete pontoon is the first and largest of 77 total pontoons that will be floating through the Locks for the 520 floating bridge project, according to Stacey Howery with the Washington State Department of Transportation. The pontoons are being constructed in Aberdeen, and the process to get it to Lake Washington is expected to take four hours. However, the pontoon shouldn’t take more than half an hour to make it through the Locks.

Howery says the Ballard and Fremont bridges shouldn’t be inconvenienced by the pontoon.

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