Major Traffic Disruption on State Route 78

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

📍 San Marcos, CA

📅 Published: July 19, 2025 at 03:06 AM

🔄 Updated: July 19, 2025 at 06:30 AM

Map showing the location of the accident in San Marcos, CA
San Marcos, July 19, 2025 -

A traffic collision on State Route 78 West in San Marcos, CA, has caused significant disruptions today. The incident, involving one flipped vehicle, occurred early this morning and has led to lane closures and ramp restrictions on the highway and nearby roads. Emergency response teams were dispatched to manage the scene and ensure traffic control.

As a result of the collision, the #2 and #3 lanes were closed from San Marcos to Rancho Santa Fe, and the Las Posas on-ramp and off-ramp were also closed to facilitate emergency operations. Although a tow truck was initially requested, it was later canceled, indicating that the vehicle remained intact at the scene.

Motorists are advised to expect delays and potential congestion in the area as crews work to clear the scene. Traffic management units are actively monitoring the situation to minimize backup and restore normal traffic flow as quickly as possible.

Drivers should consider alternative routes to avoid the affected areas and stay updated on traffic conditions. This traffic incident serves as a reminder of the importance of safe driving practices, especially during peak travel times.

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