Headline: Minor traffic congestion near Tonner Canyon Rd (CA-57) and Diamond Bar Blvd (CA-57)
Severity: Minor
Type: JAM
Location: Tonner Canyon Rd (CA-57) and Diamond Bar Blvd (CA-57)
From: Tonner Canyon Rd (CA-57)
To: Diamond Bar Blvd (CA-57)
Coordinates: 33.96080, -117.85482
Started: 2026-06-20T19:18:38.000Z
Ended: 2026-06-20T22:51:30.000Z
Last reported: 2026-06-20T22:24:29.629Z
Description: Slow traffic. Accident

Source: CrashStory.com
Canonical: https://crashstory.com/incidents/TTI-67716714-8284-49d0-8c6c-0c1a195aa6a2-TTL16558825416033001--minor-tonner-canyon-rd-ca-57-diamond-bar-blvd-traffic-congestion/
JSON: https://crashstory-api-production.up.railway.app/api/incidents/TTI-67716714-8284-49d0-8c6c-0c1a195aa6a2-TTL16558825416033001