Major Collision Blocks I-880 South in Union City

Traffic Collision on Interstate 880 South in Union City Causes Major Delays Today

📍 Union City, CA

📅 Published: September 21, 2025 at 06:38 PM

🔄 Updated: September 21, 2025 at 08:04 PM

Map showing the location of the accident in Union City, CA
Union City, September 21, 2025 -

A significant traffic collision occurred today on Interstate 880 South in Union City, CA, resulting in the complete blockage of all lanes. The incident involved two vehicles: a white Rivian pickup truck that overturned and a big rig that also ended up on its side. Emergency response units quickly arrived at the scene to manage traffic and control the situation.

Cleanup operations commenced shortly after the collision, with towing services deployed to remove the overturned vehicles. Initial attempts to clear the scene using a flatbed truck were unsuccessful, necessitating additional resources for vehicle removal. As a result of the collision, traffic experienced severe delays, with significant backups reported along Interstate 880 South, particularly near the Alvarado Niles East Onramp.

Authorities issued a signal alert to inform motorists of the ongoing congestion and advised them to seek alternative routes if possible. Emergency crews worked diligently to clear the wreckage and restore normal traffic flow. By late afternoon, cleanup efforts were in progress, and officials anticipated that lanes would reopen soon.

Motorists are encouraged to remain cautious and expect residual delays as traffic begins to normalize following this traffic incident.

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