San Andreas, CA…Crews Started on Monday, September 21, 2026, and the work continues throughout the week, there are road improvements and traffic delays throughout the communities of San Andreas and Mountain Ranch.

Road sign installations will take place on the following roadways:Associated Office Road
Calaveritas Road
Cave City Road
Dogtown Road
Fricot City Road
Jesus Maria Road
Michel Road
Mountain Ranch Road
Railroad Flat Road North
Railroad Flat Road South
Ridge Road
Sandy Gulch Road
West Murray Creek Road
Whiskey Slide Road

Traffic lanes along these roadways will be affected with the use of flaggers and warning devices. Motorists and pedestrians are urged to use caution in the area. Crews will be active during daylight hours of 7:00 AM to 6:00 PM.The Road Safety Sign Audit Project (RSSA) is being constructed by Highway Specialties, Inc., who is under contract with Calaveras County. Your cooperation is appreciated as we work to complete the project on schedule.If you have any questions or need to report urgent road related issues, please call Calaveras County Public Works Department at (209) 754-6401 during regular business hours (Monday through Friday, 8:00 AM to 4:00 PM).After regular business hours, please contact the Calaveras County Sheriff’s Office at (209) 754-6500 (non-emergency phone number).