SR 99 Tunnel Project update

Posted on Aug 31 2018 1:59 PM

Seattle Tunnel Partners continues their testing of the 90 safety and operations systems in the SR 99 tunnel and operations buildings. Yesterday evening, during one of those tests, pressurized air forced a door open and caused some drywall damage in the north operations building. No one was injured and there was no structural damage. This is precisely why the contractor has an extensive testing protocol in place. We are investigating the cause and will make adjustment to design and operations, as needed.

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