Traffic Collision Unknown Injuries State Route 57 South / Diamond Bar Blvd

Sep 18 2025 9:16AM: [1] OPEN LINE * NEG RESPONDING

Sep 18 2025 9:17AM: [3] RECALLING * REPORTING PARTY – OR – RESPONSIBLE PARTY INVLD IN A TRAFFIC COLLISION

Sep 18 2025 9:18AM: [4] DBL TOYT COA VERSUS BIG RIG TRUCK * BOTH VEHICLES ON THE RIGHT SHOULDER