If you drive through Anaheim, Mission Viejo and Santa Ana tonight, there’s a chance you could hit three different DUI checkpoints.

Up first is Mission Viejo, where the sheriff’s DUI Taskforce holds a checkpoint from 7 p.m. through 3 a.m.

No exact location was given, but we know where Anaheim’s will be: at Anaheim Boulevard and Lincoln Avenue between 8 p.m. and 3 a.m.

The Santa Ana operations runs from 9 tonight through 3 a.m. Saturday in the 2400 block of West Fifth Street.

Funding to each law enforcement agency for the checkpoints comes from California Office of Traffic Safety grants, through the National Highway Traffic Safety Administration.

That’s the same way two other Orange County Sheriff’s Department traffic operations this weekend will be funded.

Tonight, additional deputies will focus on locations where pedestrian and bike collisions have occurred over the past seven years, in an effort to lower deaths and injuries.

“Officers will be looking for violations made by drivers, bike riders and pedestrians alike that can lead to life changing injuries,” reads a sheriff’s advisory. “Special attention will be directed toward drivers speeding, making illegal turns, failing to stop for signs and signals, failing to yield to pedestrians in cross walks or any other dangerous violation.

“Additionally, enforcement will be taken for observed violations when pedestrians cross the street illegally or fail to yield to drivers who have the right of way. Bike riders will be stopped and citations issued when they fail to follow the same traffic laws that apply to motorists.”

On Saturday, sheriff’s deputies shift their focus to motorcycles as extra officers patrol areas frequented by motorcyclists and where motorcycle crashes occur.

“Officers will be looking for violations made by drivers and riders alike that can lead to motorcycle crashes,” the department states in a different release. “They will be cracking down on both those operating regular vehicles and motorcycles who are violating traffic safety laws.”