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FREMONT, Alameda County, CA, Sept. 23, 2026 — Three vehicles collided early Tuesday morning, September 22, on southbound I-880 near Fremont Blvd, blocking lanes and prompting a call for an ambulance, according to the California Highway Patrol.
The crash was reported around 5:24 a.m. in the area of southbound I-880 just north of Fremont Blvd, the CHP said. Initial reports described three vehicles involved, with one blocking a traffic lane. Dispatch logs show at least one vehicle with major front and rear damage and another with damage to its left rear axle area and front end, consistent with a chain-reaction collision.
The CHP requested an ambulance to the scene for a possible injury and called for tow trucks to remove the disabled vehicles, including a silver Nissan Maxima with major damage. Two lanes were blocked for a time as crews worked the scene, and the CHP notified Caltrans to assist with traffic control. All lanes reopened by about 6:09 a.m., roughly 45 minutes after the initial report.
The extent of any injuries has not been released. The cause of the crash remains under investigation.
Our thoughts are with those who were injured, and we wish them a full recovery.
Why Multi-Vehicle Pileups Happen in Fremont's Early Morning Commute
Multi-vehicle crashes on freeways like I-880 normally start with a single sudden slowdown: one driver brakes hard for a stalled car, a lane change, or debris ahead, and the vehicles behind have only a second or two to react. In the dark, before sunrise, drivers have less time to judge how fast traffic ahead is actually slowing.
Tight following distances worsen the problem: at freeway speed, a car needs several car lengths to stop safely, but many drivers close that gap during commute hours when traffic is heavier and everyone is trying to keep moving. Once one driver can't stop in time, the vehicles behind them can't either, and the crash spreads backward through the traffic queue.
According to the Insurance Institute for Highway Safety, 17,008 motor-vehicle crash deaths occurred outside passenger vehicles in crashes involving passenger vehicles in 2023. Early morning hours are riskier: lower visibility, driver fatigue, and lighter but faster-moving traffic all combine to make sudden stops harder to anticipate and avoid.
Frequently Asked Questions
What should I do if I'm stopped near a crash on the highway?
Turn on hazard lights as soon as you slow down, stay in your vehicle if it's safe to do so, and move to the shoulder if possible. Watch your mirrors for approaching traffic that may not see the slowdown in time.
How does fog or low visibility contribute to pile-ups?
Reduced visibility shortens the time drivers have to spot slowing or stopped traffic ahead. Even light morning fog or darkness can turn a routine slowdown into a chain-reaction crash.
Why is following distance so important?
The gap between vehicles is what gives a driver time to brake safely. At freeway speeds, even a few extra car lengths can mean the difference between stopping in time and rear-ending the car ahead.
Are secondary crashes common after an initial wreck?
Yes. Traffic backing up behind a crash scene creates new hazards, especially when drivers don't reduce speed quickly enough as they approach the back of the queue.
What to Do After a Multi-Vehicle Crash in Fremont, CA
If you're involved in a multi-vehicle crash, move to a safe area if your vehicle is drivable and check on passengers and nearby drivers. Call 911 to report injuries and request medical evaluation even if you feel fine, since some injuries from sudden impacts aren't immediately obvious.
Exchange information with other drivers involved and note the general circumstances while they're fresh, including which lanes were affected and roughly when the crash happened. Request a copy of the CHP incident report once it's available, and follow up with a doctor in the days after the crash if any pain or stiffness develops.
