RIVERSIDE, Calif. -

More than two-dozen people were arrested on suspicion of drunken or drug-impaired driving on freeways and roads in the Riverside area during Memorial Day weekend, the California Highway Patrol reported today.

A total 28 DUI arrests were made during the CHP's "maximum enforcement period," which began at 6 p.m. Friday and concluded at 11:59 p.m. Monday. During the 2012 Memorial Day weekend MEP, 35 people were busted for DUI.

A total 235 traffic citations were issued between Friday and Monday nights -- for everything from speeding to failure to wear a seatbelt, according to the CHP's Riverside office. Last year, 580 tickets were issued.

A total of 45 traffic collisions -- one of them fatal -- were reported or investigated on county roads and highways in the metropolitan area, according to the CHP.