A 55-year-old Manchester man has died from injuries he suffered when his SUV rolled over near the Exit 57 off-ramp on Interstate 84 West in East Hartford, and investigators still haven't determined what sent his vehicle off the roadway. Gregory M. Allen was driving a 2003 Honda CR-V when he lost control near the exit around 6:20 a.m. on September 23, 2026, according to police. He was rushed to Hartford Hospital with life-threatening injuries and later died from those injuries, according to Connecticut State Police.
The Office of the Chief Medical Examiner has reported that Allen's cause of death remains pending further study, as reported by the Stamford Advocate. Police said Allen's SUV entered a gore area near the Exit 57 off-ramp, struck an exit sign, and rolled over. The off-ramp connects westbound I-84 drivers directly to Route 5 and Route 15 South in East Hartford, a key interchange for traffic heading toward South Hartford and Wethersfield, according to FOX61.
Guardrail Damage Reported Near Crash
The crash damaged approximately 20 feet of metal beam guardrail, according to a report from Patch. The portion of I-84 affected by the crash was closed for several hours before reopening around 10:35 a.m. that morning, police said.
Connecticut State Police Troop H has appealed for dashcam footage and witness statements from anyone who was traveling westbound on I-84 near Exit 57 around the time of the crash, the outlet noted. Troopers are still trying to determine why the vehicle left the roadway. CSP News reported that troopers were investigating the fatal collision and asked anyone with information to come forward.
Why Answers Could Take Months
Fatal crash investigations in Connecticut typically take three to six months at a minimum to complete before the findings are entered into state databases, according to the Connecticut Crash Data Repository. That timeline reflects the detailed accident reconstruction and toxicology work required before officials can finalize a cause determination, which means no contributing factor — whether a medical event, mechanical failure, or speed — has yet been confirmed in Allen's case.
Research on highway design published on PubMed Central notes that gore areas, the triangular neutral zones between main travel lanes and diverging off-ramps, present elevated crash and rollover hazards when vehicles strike signs or unyielding barriers. Research also identifies lane-changing and braking behavior as factors in crashes on diverging sections.
Crash Fits Into a Year of Shifting Highway Numbers
Allen's death comes amid a broader statewide decline in traffic fatalities. Connecticut recorded 274 traffic deaths in 2025, a 12% drop from the 312 roadway deaths logged in 2024, according to CTDOT figures published on CT.gov. State officials credited targeted enforcement by Connecticut State Police with helping reduce fatal collisions by 26% on state-patrolled highways in late 2025.
That progress carried into early 2026, when the state logged 12 roadway fatalities through January 27, compared with 23 deaths during the same stretch the year before, per CT.gov. Connecticut also toughened its traffic laws in October 2025, adding harsher penalties for driving over 100 mph and mandatory retraining for drivers with multiple moving violations, as reported by CT Mirror. Whether any of those factors played a role in Allen's crash remains unknown, and state police have not said what they believe caused his SUV to leave the highway.
