Chumstick Highway at Beaver Hill near Plain will be closed for about three weeks beginning Sept. 28 so a Chelan County Public Works contractor can build a retaining wall at the site of a landslide that occurred this past winter.
This will be done under a full road closure, meaning motorists will not be able to get through the work zone. Detour routes are on either side of the closure.
The work was originally scheduled to begin in August; however, the start date was pushed back out of concerns for the ongoing Little Giant Fire.
In 2016, Chelan County built a retaining wall on Beaver Hill to stabilize the slope next to the roadway. The wall stood up well during the December 2025 weather event that caused much flooding in the northern part of Chelan County. However, a slide occurred just past the wall, causing Beaver Hill to be temporarily closed.
In addition to extending the existing retaining wall by 150 feet, other nearby slopes will be repaired and stabilized with additional fill and new guardrail.
The project area is from milepost 12.3 to 12.4 on Chumstick Highway. The speed limit will be lowered to 25 mph about a mile before the project area, on each side of the closure.
The $790,000 project is paid for with a mix of federal emergency relief funds and county road funds.
For more information go to the County website at: County of Chelan, Washington