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Washington State Department of Transportation
I-405/SR 167 Corridor Program – 777 108th Avenue Northeast – Bellevue, WA 98004
TRAVEL ADVISORY
April 3, 2025
Contacts: Lauren Penning, communications, 206-380-2054
Evelyn Pao, project engineer, 425-495-1577
Overnight lane reductions and rolling slowdowns on northbound I-405 near SR 522 in Bothell, April 7-11, for sign removal
BOTHELL – Drivers should prepare for a series of nighttime rolling slowdowns on Interstate 405 in Bothell through April to remove signs over I-405 as contractor crews work to widen the roadway as part of the I-405/Brickyard to SR 527 Improvement Project.
Northbound I-405 closure details, April 7-11
Overnight lane reductions on northbound I-405 near State Route 522 will start as early as 11 p.m. Monday, April 7 through 5 a.m. Friday, April 11. Rolling slowdowns will occur during this time, after 11:59 p.m. During a rolling slowdown, crews temporarily stop traffic for up to 15 minutes to create a gap in the traffic flow which will allow short term access to the roadway to remove signs over I-405 near Northeast 160th Street, Northeast 195th Street and SR 522.
Crews may close the following northbound I-405 ramps during this work:
- Northeast 132nd Street on-ramp
- Off-ramp to Northeast 160th Street
- Off-ramp to eastbound and westbound SR 522
- Off-ramp to Northeast 195th Street
Detours will be in place during the ramp closures to direct drivers around the active work on northbound I-405 between Northeast 132nd Street and Northeast 195th Street.
Drivers should expect additional traffic on northbound I-405 approaching Bothell during overnight work and plan for additional travel time.
Contractor crews are planning more nighttime rolling slowdowns on I-405 in both directions in April for the same type of work. These slowdowns will take place at different locations on I-405 (north-end and south-end sign locations) and may also require short-term ramp closures as we prepare to widen this section of I-405. These rolling slowdowns are necessary for the safety of our crews and drivers as we complete this work.
Schedule updates will be available on the project webpage, WSDOT’s Travel Center map, the WSDOT mobile app and by signing up for King County email updates.
Hyperlinks within the release:
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WSDOT keeps people, businesses and the economy moving by operating and improving the state's transportation systems. To learn more about what we're doing, go to www.wsdot.wa.gov/news for pictures, videos, news and blogs. Real time traffic information is available at wsdot.com/traffic.
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