This event has ended · last updated October 11, 2026 at 11:02 AM PDT
Traffic messageModerate
Special Event on 401
401
...
Sunday, Oct. 11: Both directions of SR 401 will be closed between the US 101 interchange (milepost 0.0) and the Megler Rest Area (milepost 1.1) from 8:30-11 a.m., for the annual Great Columbia Crossing 10k Run/Walk event. During this event, travelers will need to use an alternate route.
ReportedOctober 11, 2026 at 08:00 AM PDT
Road
401
Source
WSDOT
Coordinates
46.24116, -123.87505