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What we’re doing to keep traffic moving during the four-day SR 99 closure

We’ve been asking you to do your part to reduce congestion when SR 99 closes for four days starting Friday night, Aug. 22. That includes things like changing your commute habits and choosing an alternate way to get around.

But what are we, the agencies tasked with keeping traffic moving during this closure, doing to help? Quite a bit, actually. Here’s a roundup of some of the steps we’re taking to help you and your fellow commuters through the closure.

Washington State Department of Transportation

WSDOT coordinated with the Seahawks to make sure fans could get to and from Friday night’s preseason game with little disruption. We worked with SDOT to limit lane closures from nearby constructions projects and keep traffic moving on side streets. Our roaming incident response teams will be at the ready to clear incidents faster, and additional traffic engineers will be on duty throughout the closure to get up-to-the-minute information to drivers.

Seattle Department of Transportation
SDOT has placed message signs along the SR 99 corridor to let people know about the closure. They’ve also adjusted traffic signals to improve traffic flow, limited other road closures in the area and extended the weekend and weekday hours at their traffic management center to ensure quick communication to drivers. SDOT’s traveler’s information page is a good resource for drivers.

King County Metro
Metro will post bus route alerts as close to real time as possible. They will monitor traffic conditions and adjust transit operations as needed. Extra buses will be on standby in case busy routes are behind schedule due to traffic congestion. Also, consider this: If there’s an extra seat in one of Metro’s VanPool vans, you can get on. Visit Metro’s rideshare page for more information.

Thanks again for doing your part
It’s never easy to close a major highway, but this closure will enable us to complete important work related to our efforts to replace the Alaskan Way Viaduct. Thanks in advance for your patience and for doing your part to minimize congestion as we build a better SR 99 corridor.

We’ll make sure we do our part too.