Major Six-Vehicle Collision Causes Traffic Chaos

Traffic Collision on State Route 99 South in Modesto Causes Significant Delays Today

📍 Modesto, CA

📅 Published: August 6, 2025 at 12:44 PM

🔄 Updated: August 6, 2025 at 04:00 PM

Map showing the location of the accident in Modesto, CA
Modesto, August 6, 2025 -

A major traffic collision involving six vehicles occurred today on State Route 99 South near the Kansas Avenue Offramp in Modesto, CA. The incident took place during the early afternoon and involved a red mini van, a gray sedan, a semi-truck, a red Dodge Durango, and a silver Honda Civic. Several of these vehicles were deemed non-drivable and required towing.

Due to the collision, the #2 and #3 lanes of State Route 99 South were closed, along with the Kansas Avenue Onramp. This led to significant traffic delays and congestion for motorists in the area. Road conditions were further compromised by slick surfaces and spilled fluids, prompting a swift emergency response for traffic management and scene control.

Multiple emergency units were dispatched to manage the situation effectively. Crews worked to clear the hazardous materials from the roadway, including the use of a street sweeper. As a result, traffic continued to back up, impacting the flow of vehicles into San Joaquin County. Motorists are advised to avoid the area and seek alternate routes to minimize delays.

This traffic incident serves as a reminder of the importance of safe driving practices, especially in adverse conditions. Updates will be provided as the situation develops.

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