OLD SAYBROOK, Middlesex County, Conn., Sept. 22, 2026 — A seven-vehicle crash involving a tractor-trailer injured 10 people on Monday morning, September 21, and shut down northbound Interstate 95 in Old Saybrook.
The crash was reported around 8:36 a.m. between exits 67 and 69, according to the state Department of Transportation. Highway cameras showed the roadway had reopened sometime before 11:15 a.m.
Connecticut State Police said the collision, which involved a tractor-trailer, resulted in minor injuries. Ten adults were taken to area hospitals, according to the Old Saybrook Fire Department, which reported that nine ambulances responded to the scene.
The crash forced a closure of nearly two miles of interstate during the Monday morning commute. No further details on the vehicles involved or the sequence of the crash have been released.
State police have not said what caused the pileup. The investigation remains open.
We wish those injured a full recovery.
Why a Seven-Vehicle Pileup on a Highway Like I-95 Turns So Severe
A chain-reaction crash on a busy interstate is less about any single impact and more about what happens after the first one. Vehicles behind the initial collision usually have only a few seconds to react. A car built to absorb a frontal hit is not built the same way on its sides or rear, so a second or third impact from an unexpected angle can do more harm than the first crash itself.
Weight differences make this worse. A tractor-trailer can weigh 20 to 30 times what a passenger car weighs, so when it is part of a chain-reaction crash, the smaller vehicles absorb most of the force. Airbags and crumple zones are designed around a single, predictable impact, not a string of hits from multiple directions in quick succession.
The bigger danger sometimes comes after the vehicles stop moving. Drivers who slow down or stop for the initial crash can be struck again by traffic that has not yet reacted. First responders working in the open lanes face the same risk, along with anyone standing outside a damaged vehicle. That secondary crash risk is a major reason agencies push to clear travel lanes and set up warning zones as fast as possible once a highway pileup happens.
Frequently Asked Questions
Are secondary crashes common after a highway pileup?
Yes. Stopped or slowed traffic behind an initial crash is a leading cause of follow-up collisions, especially on high-speed highways where drivers have little time to react.
Why are multi-vehicle crashes hard for investigators to piece together?
With several vehicles involved, investigators have to determine the order of impacts, which driver actions or road conditions contributed, and how each collision affected the others. That usually takes longer than a two-vehicle crash reconstruction.
What typically causes highway pileups?
Common factors include sudden slowdowns, reduced visibility, distracted or following-too-close driving, and one vehicle's inability to stop in time once traffic ahead brakes.
What to Do After a Multi-Vehicle Crash in Old Saybrook, CT
If you're involved in a multi-vehicle crash, try to move to a safe location if your vehicle is drivable and it's safe to do so, then turn on hazard lights and call 911. Even if injuries seem minor, a medical evaluation afterward is worth getting, since some injuries from being jolted or struck don't show symptoms right away.
Get the names and contact information of other drivers and any witnesses, and take photos of the scene if you can do so safely. Old Saybrook police or state troopers responding to the scene will typically file a report, which you can request a copy of later. Keep any paperwork from the hospital or your insurer in one place, since multi-vehicle claims frequently take longer to sort out than single-car crashes.
