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Collision near Grand Ave
October 8, 2026 · 10:05 PM
- black Toyota Tacoma
- Grand Ave
- SR-57
- Diamond Bar
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Reported crash location
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What the source reported
At approximately 10:05 PM, dispatch information described a collision involving a black Toyota Tacoma on SR-57 northbound near Grand Ave in Diamond Bar. A vehicle was reported on the right shoulder. Dispatch notes indicate an ambulance responded. A tow was requested. 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
Vehicle details
Vehicles reported
Representative illustrations
- on the right shoulder
- tow requested
What happened, step by step
- 10:05 PMCollision reportedAs logged
[1] 2 VEH TC - 10:06 PMLanes affectedAs logged
BLKNG SLOW LN - 10:06 PMVehicle information reportedAs logged
BLK PK TK VS GRY SDN - 10:06 PMLanes affectedDispatch notes describe #1 lane blocked.
- 10:06 PMVehicle information reportedDispatch notes describe a black Toyota Tacoma.
- 10:07 PMMedical responseAs logged
[4] NEG INJ / DECLINE 1141 - 10:08 PMVehicle information reportedAs logged
[7] RP ADV UNABLE TO MOVE VEH TO RS DUE TO TRAFFIC - 10:09 PMTow requestedAs logged
C81-601 1185 - 10:10 PM1 routine dispatch entry (units, tow rotation, acknowledgements)
- 10:29 PMScene clearedAs logged
C81-601 1022 TOW - PTY HAS PRIV ASST ENRT - 10:30 PMScene clearedAs logged
1039 AL and SONS COPIES 1022 - BOT
Every entry in the dispatch record below is represented here.
Dispatch log
11 entries- +0:0022:06BLKNG SLOW LN
- +0:0022:06BLK PK TK VS GRY SDN
- +0:0222:08:432 VEH TC
- +0:0222:08:43VEHS BLKG #1 LN
- +0:0222:08:43BLK TOYT TAC VS LIGHT COLOR SD
- +0:0222:08:43NEG INJ / DECLINE 1141
- +0:0222:08:43RP ADV UNABLE TO MOVE VEH TO RS DUE TO TRAFFIC
- +0:0322:09C81-601 1185
- +0:0422:101039 Al and Sons 909-839-0932 ENRT // ETA: 20 MIN
- +0:2322:29C81-601 1022 TOW - PTY HAS PRIV ASST ENRT
- +0:2422:301039 AL and SONS COPIES 1022 - BOT
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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