PLAN NOW: State to close major section of Highway 99 through Seattle for four days (MAP)

SEATTLE – The state plans to close both directions of SR 99 for four days and WSDOT officials are urging drivers to make alternate plans now.

We need Seattle commuters to plan ahead for this closure,” said WSDOT’s Dave Sowers.


WSDOT plans to close both directions of highway 99 between South Spokane Street and Valley Street from 10:00 pm Friday August 22nd until 5:00 a.m. Monday August 25th.

According to a statement from WSDOT:

Crews will reopen SR 99 south of the Battery Street Tunnel just before the Monday morning commute; however, the highway will remain closed through the tunnel to Valley Street until 5 a.m. Wednesday, Aug. 27.

“The section of 99 we’re closing Monday and Tuesday is shorter in length than what we’re closing that weekend, but it has the potential to create longer backups and delays both on city streets and I-5,” said Sowers.