Santa Rosa police will set up a drunken driving checkpoint Friday night somewhere in the city.

The checkpoint will run from 7 p.m. to 1 a.m. Saturday.

Police agencies typically don't disclose the location of checkpoints prior to the event.

Officers will screen drivers for signs of intoxication and check to see if they have a valid driver's license.

Suspected drunken drivers will be arrested and their cars towed.

Drivers approaching a checkpoint will be advised of what's ahead and will be directed to a lane. Then an officer will talk to them about the checkpoint and do a quick screening to see if they could be legally drunk. Those drivers will then be given a sobriety test.

The California Office of Traffic Safety through the National Highway Transportation Safety Administration offers grants to law enforcement agencies for such police enforcement.