Major Traffic Disruption from Semi-Truck Collision

Traffic Collision on Crow Canyon On-Ramp to Interstate 680 in San Ramon Causes Delays Today

📍 San Ramon, CA

📅 Published: August 22, 2025 at 06:36 PM

🔄 Updated: August 22, 2025 at 08:01 PM

Map showing the location of the accident in San Ramon, CA
San Ramon, August 22, 2025 -

A traffic collision involving two vehicles occurred today on the eastbound Crow Canyon on-ramp to northbound Interstate 680 (I-680) in San Ramon, CA. The incident involved an overturned semi-truck and a car carrier semi. The overturned semi was reported as non-drivable and required towing assistance, while the status of the car carrier semi remains unclear.

The traffic incident led to lane closures on the Crow Canyon on-ramp, resulting in significant traffic impact and potential delays for motorists during the busy afternoon commute. Emergency units were dispatched to manage the scene and control traffic flow, ensuring safety for all road users.

Initially, the eastbound Crow Canyon on-ramp to northbound I-680 was closed to facilitate the response and recovery efforts. However, later updates confirmed that the ramp has since reopened, helping to alleviate some of the congestion that had built up in the area.

Motorists are advised to remain cautious while traveling through the vicinity, as residual traffic may still be present. The California Highway Patrol is on-site to ensure the safe clearing of the scene and to manage any ongoing traffic issues.

This traffic incident serves as a reminder for drivers to stay alert and drive safely, especially in areas where road conditions may be affected by accidents.

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