Based on information provided by WSDOT, on January 11, 2019, State Route 99 through downtown Seattle will be closing for approximately three weeks to realign SR 99 into the new tunnel. During the closure, both the viaduct and the tunnel will be closed. Drivers should expect up to six weeks of region-wide congestion.
To minimize transportation impacts, construction and curb-space vending will be restricted on critical streets from January 4 – February 15, 2019. Please see the Restrictions During Viaduct Closure map showing streets where right-of-way closures will not be permitted.
If work has been scheduled during the restriction period, we will contact you prior to the closure of the viaduct. Your permit may be revoked with at least 30 calendar days’ notice, per SMC 15.04.070. Any revoked permits will be re-issued after the closure with no additional costs.
Please see our informational one-page document for more information, or read the following blog articles: