Just after 10:20 on the night of Sunday, July 12, the front left wheel separated from a northbound Ford F-250 on Interstate 95 in Milford, Connecticut.
It struck several vehicles in the northbound lanes. Then it cleared the concrete Jersey barrier that divides the highway and came down through the windshield and roof of a southbound Toyota RAV4.
Catherine Palaia, 24, of Stratford, was pronounced dead at the scene.
Two weeks later, Connecticut State Police still have not said what caused the wheel to come off.
What investigators have established
The crash happened near Exit 41, beside the Milford Service Plaza. Palaia was driving in the left southbound lane — the lane closest to the barrier, and the one a projectile crossing the median reaches first.
After the impact her RAV4 veered right across all southbound lanes, struck a guardrail on the right shoulder, then came back left and stopped in the centre median. A Milford Fire Department paramedic pronounced her dead at the scene.
The F-250's driver and passenger were uninjured. Southbound I-95 was closed for roughly seven hours while State Police Troop G, the Collision Analysis and Reconstruction Squad, the Department of Transportation and Milford Fire investigated.
The question that has not been answered
Why did the wheel come off?
That is not a rhetorical question, and it is not unanswerable. Wheel separations are one of the more forensically tractable failures in crash investigation, because the hardware survives. Investigators can examine the studs, the lug nuts, the hub and the bearing, and the failure mode usually leaves a signature.
The common causes are narrow and well documented:
- Lug nuts not torqued correctly after a tire change, brake job or other service — by a shop or an owner
- Studs sheared or fatigued, often after being over-torqued or run loose for a period
- A failed wheel bearing, which can allow the hub assembly to come apart
- Corrosion or damage to the mounting surface
What these share is that they are maintenance failures, not random events. A wheel does not usually leave a vehicle without something having been done to it, or not done to it, first.
That is why the absence of a finding two weeks on is the live part of this story. Connecticut State Police have announced no cause and no charges. Whether anything follows depends on what the reconstruction squad concludes about a set of lug nuts.
Who she was
Palaia grew up in Stratford and earned a degree in marine biology from Roger Williams University, turning it into a career in the field.
Her obituary described someone who "never missed an opportunity to try something new" and "embraced every experience with curiosity, courage, and joy." Her family said she "said yes to life."
She was in the left lane of a highway she had presumably driven a thousand times, and nothing she did or could have done had any bearing on what happened.
If you saw it
Connecticut State Police Troop G in Bridgeport: 203-696-2500. Investigators have asked anyone who witnessed the collision, or who has information about the pickup before the wheel came off, to get in touch.
Dashcam footage from either direction of I-95 near Exit 41 that night would be particularly useful — the northbound vehicles struck first would have recorded the moments before the wheel crossed the barrier.
