HIGHWAY 99 TUNNEL: Approaching 5,000-foot mark

WSDOT is out with its latest twice-weekly progress report on the Highway 99 tunneling machine. As of today, it’s dug 4,955 feet of the 9,270-foot tunnel route, and could pass the 5,000-foot mark within days. The most-recent maintenance stop turned out to be a short one, and it’s been tunneling again since October 12th, currently toward the north end of the Union-to-Stewart-Street zone.

1 Reply to "HIGHWAY 99 TUNNEL: Approaching 5,000-foot mark"

  • dale October 20, 2016 (8:45 pm)

    The schedule update is from August online but I think we are a few weeks ahead. Subject to change of course. Its fluid. 

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