A five-day full closure of Highway 1 in both directions in Lompoc begins Monday.
The full closure begins at "A" Street in Lompoc on June 22, at 8 a.m. and continues through Friday, June 26 at 5 p.m.
Motorists traveling in both directions will detour from Hwy 1 in each direction between South Third Street and East Chestnut Avenue.
Caltrans says delays should not exceed 10 minutes.
The public will be able to access all local businesses on each side of "A" Street and the north/south sides of Highway 1.
This is a project to improve the railroad crossing and is being performed by Union Pacific Railroad, under permit from Caltrans.