Incident Report

Granville, Vermont House Explosion: 2 Dead and 3 Injured in Propane Gas Blast

A leak from residential liquid propane lines caused an explosion at a two-story home on Connecticut Trail, leveling the structure and prompting a multi-agency emergency response.

Location: Granville, Addison County, VT Incident Date: September 5, 2026 Investigation: Accidental Propane Gas Explosion

Granville, VT Incident Summary

Fatalities

Injuries

Total

Structure Loss

Propane

Fuel Source

Location	Connecticut Trail (off Post Office Hill Road), Granville, VT
Confirmed Fuel	Liquid petroleum gas (LP / Propane) from on-site residential supply
Damage	Structural collapse, localized fire, scattered debris
Determined Cause	Propane accumulation in lower levels ignited by an internal source
Emergency Action	Mutual aid response, fire suppression, medical air transport

Connecticut Trail Propane Explosion: Details of the Granville, VT Home Collapse

Emergency dispatch received multiple 911 calls around 7:45 p.m. regarding an explosion and fire on Connecticut Trail, a rural road off Post Office Hill Road in Granville. Residents in nearby communities along the Route 100 corridor reported hearing the event.

The explosion led to the complete collapse of the two-story single-family home. Arriving responders found the structure down, with materials and personal belongings spread across the surrounding property. Emergency personnel put out localized fires within the debris before conducting search efforts.

Granville Explosion Casualties: Reported Fatalities and Hospitalizations

Five people were present at the property at the time of the incident:

Fatalities (2 Occupants) A 20-year-old occupant was found within the structure and pronounced dead at the scene. A 46-year-old occupant was transported to a regional hospital and later died from injuries sustained in the explosion.

Critical Injuries (1 Occupant) A 69-year-old occupant sustained severe injuries and burns. After receiving initial treatment locally, the patient was airlifted to a specialized medical facility in another state.

Non-Life-Threatening Injuries (2 Occupants) Two other adults sustained less severe injuries, were evaluated at the scene, and were taken to local medical facilities for further care.

Addison County Emergency Mobilization: Route 100 Mutual Aid Actions

Due to the remote location and damaged utilities, emergency responders coordinated a mutual aid effort across Addison and Windsor counties. Crews secured on-site propane shutoff valves and surrounding lines to prevent further hazards, using water tenders to supply fire suppression operations along Route 100.

Responders continued working on-site to extinguish remaining hot spots and secure the area, allowing state investigators safe access to the foundation.

Vermont State Fire Investigation: Propane Gas Leak and Ignition Findings

Following fire suppression and recovery work, state fire investigators examined the debris pattern, fuel infrastructure, and foundation to determine the origin of the event.

Investigators ruled the incident accidental, confirming that the fuel source was liquefied petroleum (LP/propane) gas rather than natural gas, which is not piped through the rural mountain valley. The investigation found that propane leaked from the home's interior piping system and, being heavier than air, collected in the lower areas of the structure. Once the gas reached a flammable concentration, an internal electrical or mechanical source provided the ignition.

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