Contra Costa County Public Works Department will perform work on San Pablo Dam Road from Bear Creek Road to Appian Way, from September 11 through September 28, 2017. The work will occur Monday through Thursday between the hours of 8:30 a.m. and 4:00 p.m. to trim trees encroaching into the roadway and improve sight distance. The work may be rescheduled based on weather conditions. Electronic message boards will alert drivers of the scheduled work. There will be traffic control through the work area and drivers can expect delays of 10-15 minutes.