Hotel / Restaurant, Restaurant Riverbank, CA – Sprinkler system assists firefighters in controlling restaurant fire October 16, 2017 viking210 Cool Hand Luke’s in Riverbank is expected to stay closed for about a week after a fire last Tuesday night. The fire broke out at the restaurant on Patterson Road at about 7 p.m., setting off the sprinkler system in the kitchen and prompting the evacuation of dozens of diners. The fire was accidental, said Lt. Dave Hutchison, supervisor of the Fire Investigation Unit. It started on a stove in the kitchen, got into the heating and air conditioning system and spread into the attic.