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Possible match

Collision — injuries unknown

Collision near Pathfinder Rd

September 17, 2026 · 4:16 PM

  • Pathfinder Rd
  • SR-57
  • Diamond Bar

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What the source reported

At approximately 4:16 PM, a traffic collision was reported on SR-57 northbound near Pathfinder Rd in Diamond Bar. Dispatch notes indicate the collision blocked at least one lane.

Written from the CHP dispatch record below. Dispatch notes reflect what was reported at the time and can be incomplete or later corrected.

See complete source detailsTimeline, dispatch log, and record data

What happened, step by step

  1. 4:17 PMUnits respondingAs logged81-601 1097 SAME 1020 ON LOG 1944
  2. 4:17 PMLanes affectedA responding unit reported #1 lane blocked.
  3. 4:18 PMVehicle information reportedAs logged81-601 -- GOT VEHS TO MOVE THRU THE PA -- 2 SD'S

Every entry in the dispatch record below is represented here.

Dispatch log

4 entries

Combined from more than one CHP dispatch record: 260917LA1972 · 260917LA1944

  1. +0:0016:13,, 3RD TC OCCURED AND PTYS PULLED UP BEHIND 81-601 ON LOG 1843
  2. +0:0416:1781-601 1097 SAME 1020 ON LOG 1944
  3. +0:0416:1781-601 ADVS 4TH TC HERE -- PTYS BLKING #1 LN -- PTYS OUTSIDE VEHS EXCHING INFO
  4. +0:0516:1881-601 -- GOT VEHS TO MOVE THRU THE PA -- 2 SD'S

About this information.

This page is generated automatically from publicly available California Highway Patrol computer-aided dispatch (CAD) data. Dispatch information is preliminary and unverified. It may contain errors, and it may change as an incident develops. This page is not an official collision report, and no official collision report is available on this website. Dispatch data does not identify any person involved in this incident, and no individuals are identified on this page. To request the official collision report, follow the agency instructions below.

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