Irvine Police are conducting a sobriety checkpoint from 8 tonight through 2 a.m. Saturday at Culver Drive and Walnut Avenue, the department announced.
The Orange County Sheriff's Department checkpoint in Dana Point ends at the same start but begins two hours earlier, at 6 tonight. Deputies aren't saying where it is.
The agencies say checkpoints are among the anti-DUI operations that reduce injuries and deaths.
Funding comes from the California Office of Traffic Safety, through the National Highway Traffic Safety Administration.