Major Traffic Disruption on State Route 78

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

📍 San Marcos, CA

📅 Published: October 2, 2025 at 11:34 AM

Map showing the location of the accident in San Marcos, CA
San Marcos, October 2, 2025 -

A traffic collision involving two vehicles occurred today on State Route 78 East near San Marcos, CA, leading to significant traffic disruptions during the morning commute. The incident, reported around 10:35 AM, involved a white Ford Crown and a black small SUV, both of which sustained frontal end damage.

The collision blocked the slow lane and the off-ramp, resulting in delays and congestion for drivers in the area. Emergency response teams arrived promptly to manage traffic flow and control the scene. A tow truck was called to assist with the removal of the damaged vehicles, although their final status—whether they were drivable or required towing—has not been confirmed.

As a result of the traffic incident, motorists experienced backups and delays, particularly affecting those attempting to exit at the off-ramp. Authorities worked diligently to clear the roadway and restore normal traffic patterns.

Drivers are advised to remain cautious and expect possible residual delays as the situation continues to be managed. The California Highway Patrol is on site to ensure safety and facilitate the flow of traffic in the area.

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