Major Traffic Disruption on State Route 78

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

📍 San Marcos, CA

📅 Published: September 18, 2025 at 08:06 PM

🔄 Updated: September 18, 2025 at 11:00 PM

Map showing the location of the accident in San Marcos, CA
San Marcos, September 18, 2025 -

A traffic collision involving three vehicles occurred today on State Route 78 East near Nordahl Road in San Marcos, CA, leading to significant traffic disruptions during the evening commute. The incident involved a white Audi A3, a white Toyota Prius, and a black Pathfinder, which resulted in the blockage of the right lane.

Emergency response units promptly arrived at the scene to manage traffic and ensure safety. As the vehicles remained on-site, traffic was impacted with delays and congestion reported in the area. The right lane was blocked, causing slower conditions for drivers navigating through the scene.

A tow truck was called to assist in removing one of the vehicles from the roadway, which helped alleviate some of the traffic backup. By approximately 8:11 PM, the lanes were cleared, allowing for the resumption of normal traffic patterns.

Motorists traveling through San Marcos on State Route 78 East should remain cautious and be aware of potential residual delays as the area recovers from the incident. The California Highway Patrol was on hand to facilitate a smooth traffic flow following the collision.

Drivers are encouraged to stay updated on traffic conditions and plan their routes accordingly to avoid any further delays.

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