Weekend traffic alerts
--Hollywood will be a mess this afternoon, with a big peace march planned for noon starting at Hollywood and Vine.
--Law enforcement will be out in force patrolling for drunk drivers during this St. Patrick's Day weekend.
--Beware of some I-5 closures at night in Orange County. And some this weekend around downtown Long Beach.
--Water main rupture has closed Crenshaw Boulevard at 67th Street.
