Major Traffic Disruption on State Route 78

Traffic Collision on State Route 78 East in San Marcos Causes Delays Today

📍 San Marcos, CA

📅 Published: July 11, 2025 at 06:33 PM

Map showing the location of the accident in San Marcos, CA
San Marcos, July 11, 2025 -

A traffic collision involving two vehicles occurred today on State Route 78 East at Las Posas in San Marcos, CA, resulting in significant traffic disruptions. The incident took place around 5:17 PM and involved a white Nissan Versa and a gray Cadillac. The Nissan Versa was reported as not drivable, blocking the second lane, while the Cadillac was maneuvering to the right shoulder.

Emergency responders arrived promptly to manage the situation, implementing lane restrictions to facilitate scene control. A tow truck was requested to assist with the removal of the non-drivable Nissan Versa. As a result of the collision, motorists experienced delays and congestion in the area, particularly during the busy evening commute.

Traffic management units were deployed to direct vehicles and ensure safety while crews worked to clear the scene. Drivers traveling on State Route 78 East should anticipate backups and consider alternative routes to avoid delays.

This traffic incident underscores the importance of safe driving practices and the need for efficient emergency response to minimize disruptions on California roadways. Authorities are actively working to restore normal traffic flow as quickly as possible.

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