Traffic Collision Disrupts State Route 78 Commute

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

📍 San Marcos, CA

📅 Published: June 15, 2025 at 03:02 AM

🔄 Updated: June 15, 2025 at 04:31 AM

Map showing the location of the accident in San Marcos, CA
San Marcos, June 15, 2025 -

A traffic collision on State Route 78 West at the Twin Oaks Valley Road North On-Ramp in San Marcos, CA, caused significant traffic disruptions today. The incident occurred around 1:49 AM and involved a single vehicle, a Mazda sedan, which collided with traffic control devices, including a signal pole and ramp sign. This collision resulted in the vehicle blocking lanes, leading to traffic congestion in the area.

Emergency services responded promptly, with units arriving shortly after the incident was reported. The damaged traffic signal infrastructure included a broken traffic light pole, which will require further assessment. A tow truck was called to assist in clearing the blocked lanes, and emergency responders worked efficiently to manage the situation.

Motorists traveling through this section of State Route 78 experienced delays and backups due to the blocked lane and ongoing emergency response efforts. As the morning commute approached, drivers were advised to seek alternate routes to avoid congestion. The scene was cleared, and normal traffic flow was expected to resume shortly after the emergency response concluded. This incident underscores the importance of safe driving practices and adherence to traffic regulations to prevent similar occurrences in the future.

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