Traffic Hazard State Route 57 North / Diamond Bar Blvd Off Ramp

Jun 18 2026 10:22AM: [1] BIG RIG TRL WITH LOADED FLATBED TOW TRUCK – PARTIALLY BLKNG SLOW LANE – POSSIBLE – OR – POSSESSION BAD ORDER (NOT FUNCTIONING) TRANSITION ROAD

Jun 18 2026 10:22AM: [2] PTY HAS CONTACTED DIASPATCH – ESTIMATED TIME OF ARRIVAL 30 MINS

Jun 18 2026 10:45AM: [6] 601M RUNNING TRAFFIC BREAK LED BY OFFICER NORTH BOUND JUST SOUTH OF DIAMOND BAR FOR VEHICLE