Get our free mobile app Drivers should expect to encounter a pilot car and reduced speed limits with lengthy delays of up to 45 minutes between the hours of 6 a.m.-7 p.m., starting Monday, Aug. 10 until Friday, Aug. 14. After the paving is complete, crews with Chelan County are expected to begin a project that will build a retaining wall at Beaver Hill near Plain beginning Sept. 28.