Drivers on Highway 154 may run into some delays starting Monday.
Caltrans will be installing rumble strips and striping the highway along a stretch in the Los Olivos area from Baseline Avenue to east of Highway 101.
There will be one-way reversing traffic control and lane closures Monday through Thursday during the overnight hours of 7:30 p.m. to 5:30 a.m. and on Sundays from 9 p.m. to 5:30 a.m.
Drivers should plan for about a 15-minute delay.
Caltrans says the project should be finished by mid-December, weather permitting.