May 1 #99closure update
Posted on May 1 2016 2:32 PM
Welcome to day three of the #99closure. After a slow and deliberate departure from the planned maintenance stop near Yesler Way, Seattle Tunnel Partners’ tunneling crews picked up speed in accordance with their plan for tunneling under the viaduct. As of 2 p.m. Sunday, Bertha, the SR 99 tunneling machine, had mined 39 feet of the approximately 385 feet of tunnel that must be completed before the viaduct reopens to traffic. STP determines the appropriate rate to mine safely and mining rates will vary as the machine passes underneath the viaduct.
Visit our tracking page to see a map showing Bertha’s progress.
Expect a more challenging commute Monday since Mondays are a traditionally heavier traffic day than Fridays. Go to our maps and resources page or see our travel alternatives handout to explore options other than driving. WSDOT continues to run a 24-hour-per-day command center with constant, real-time communication taking place with other agencies. And WSDOT’s Transportation Management Center also has extended hours with up to 12 additional Incident Response Teams ready to clear state roads of incidents as quickly as possible.
The Seattle Traffic Operations Center examined Friday’s commute and is adjusting by extending parking restrictions on Fourth Avenue South from peak periods only to all-day restrictions to help transit and traffic flow. In addition, the Seattle Department of Transportation added protected left turn signals at First Avenue South and South Hanford Street as well as First Avenue South and South Horton Street to improve traffic flow.
SDOT will continue to work with the Seattle Police Department to monitor and adjust signals as necessary to maximize flow.