Highway Alert - Heavy Traffic I-90 westbound travelers are experiencing areas of slow moving traffic and up to 45 minutes of added travel time in the Cle Elum, milepost 84 to Easton, milepost 71 area, due to a semi rollover at MP 73, closing the right lane, WSP and tow units are working to clear the semi and open the closed right lane. There is no estimated end time to clear this delay. Updates will be provided as new information is available.