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Transportation Updates
What you need to know to avoid traffic tie-ups on your way to and from Seattle Center.
Mercer Corridor Project
Welcome to our Transportation Update, where you'll find the latest on road work and other lane/road closures affecting access to Seattle Center. This page is updated weekly.
Please note that 1st Ave N Garage is now closed. Mercer Street Garage, between 2nd and 3rd Avenues North, and 5th Ave N Garage, between Republican and Harrison streets, remain open for public use. Arena construction will start soon. For more information on this transformational project, visit: New Arena at Seattle Center.    
To avoid traffic slowdowns, consider all transportation options as you route your way to and from Seattle Center. Several Metro bus routes serve the Center, and Seattle Center Monorail provides a speedy connection between Seattle Center and the Sound Transit/Metro Station at Westlake, and with the new Harrison St connection to South lake Union, Seattle Streetcar is also a walkable option. To learn more about traffic and road work in Seattle, visit: Seattle Traffic.
The SR-99 Tunnel is now open. Downtown entrances/exits at Seneca St and Western Ave no longer exist. Drivers enter the tunnel southbound from 6th Ave N (just north of Harrison St) and exit northbound SR-99 at Republican St. Harrison St is open across Aurora Ave N  connecting Seattle Center and South Lake Union. 
Through Friday, June 14, 24/7:  The left northbound lane of 7th Ave N will be closed. between Denny Way and John St.
Through Thursday, June 20, 24/.7: Southbound 7th Ave N will be reduced to one lane between Harrison St and Denny Way, and no left turn from 7th Ave N to Denny will be allowed.
Monday, May 13 to Friday, June 14, 7am-5:30pm daily: The left northbound lane of 7th Ave N between Denny Way and John St will be closed.
Monday, May 13 to Thursday, May 16, 8pm to 5am nightly, and Friday, May 18 to 8pm to Saturday, May 19 at 6am: The four left lanes of northbound I-5 will be closed between the South Boeing Access Road and West Seattle Bridge.
Monday, May 13 to Friday, May 24, 7pm to 5am nightly: Eastbound Denny Way will be reduced to one lane between 6th Ave and Wall St.
Saturday, May 18 at 2am to Sunday, May 19 at 5pm: 4th Ave will fully close between Union and University streets. 
Saturday  May 18, 7am to 7pm: Thomas St will be closed between 7th Ave N and Dexter Ave.
Friday, May 31 at 7pm to Sunday, June 2 at 10pm: The center lanes in both directions of Denny Way will be closed between 9th Ave N and Westlake Ave N.
Friday, June 14 at 9pm to Monday, June 17 at 5am: One lane only in both directions will be open over the SR99 Aurora Bridge. The closure will repeat Friday, June 28 at 9pm to Monday, July 1 at 5am. 
Waterfront Construction: Colman Dock is open, and the passenger-only ferry facility has been temporarily relocated to its north side. Pickup/ drop-off access remains in front of the terminal building. All drive-on customers arrive from S Jackson St. The west side trail is closed between  Lenora and Pike streets until Memorial Day. Road restoration work on Alaskan Way near Pike St has been completed. Four lanes of Alaskan Way, the Pike St crosswalk and the Pike Place Market Garage driveway are now open.


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