As summer fades to fall, construction crews are in their final weeks stabilizing the slopes east of Chinook Pass on state Route 410.

Starting Monday, Sept. 15, crews will shift the hours of work to 7 a.m. to 5 p.m.weekdays; previously 6 a.m. to 4:30 p.m. No work is scheduled Saturdays and Sundays.

Drivers can expect up to 30-minute delays as crews remove loose rock. Work is scheduled to be complete in early October.

Chinook Pass typically closes in November each year due to hazardous winter driving conditions.