Know before you go
This is your "survival guide" for getting around during the #99closure. Learn about the tools that are available at our closure page. Find us on Facebook and Twitter, and consider downloading the WSDOT and SDOT apps.
Learning from the 2011 closure
Does the #99closure feel like Déjà vu? If so, it may be because we closed the viaduct in 2011 for one week as crews tore down the southern mile of the structure. You might also remember the heavy congestion that occurred while the viaduct was closed. Expect more of the same this time around. Why? Since 2011, weve seen tremendous population growth in the area. That means more cars on the road.
The good news is that transportation infrastructure has improved some since then. The City of Seattle opened a new streetcar line, WSDOT opened the South Atlantic Street Overpass by the stadiums and Sound Transit last month opened University Link.
- King County Metro is rerouting 12 routes and will deploy 22 extra buses to help maintain schedules.
- King County Water Taxi will add two extra trips to its Vashon route.
- King County is providing extra parking lots and spots along Harbor Avenue Southwest in West Seattle for Water Taxi riders.
- Seattle Police Department will direct traffic at key intersections.
- Temporary parking restrictions along key routes will facilitate transit and general purpose travel.
- SDOT is expediting planned intersection markings along East Marginal Way South to assist bicycle and pedestrian routes.
- Traffic flow and temporary parking changes will help get vehicles on and off Aurora at Denny Way, Wall Street and Battery Street.
- SDOT is restricting lane closure requests by third parties on city streets.
- I-5 express lanes will remain open in the northbound direction overnight.
- Southbound I-5 HOV lane between Mercer Street and Corson Avenue will be "open to all" during the closure.
- WSDOTs live map and traffic cameras show real-time conditions on state roads.
- SDOTs live map and traffic cameras show real-time conditions on local streets.