A project to install rumble strips and striping on Highway 154 in the Los Olivos area is set to get underway Monday night.
Caltrans crews will be working from Baseline Avenue to east of Highway 101.
Drivers will encounter one-way reversing traffic control and moving lane closures from 7:30 at night to 5:30 the next morning through Thursday and also on Sundays from 9 p.m. to 5:30 a.m.
Fifteen-minute delays are expected while work on the $217,000 project is underway.