Middleton, MA –An electrical explosion at the Middleton Jail and House of Correction Tuesday evening prompted emergency evacuations, one reported injury, and a temporary suspension of inmate visitation, according to the Essex County Sheriff’s Department.
Officials said the blast occurred in an underground conduit connecting an external transformer to an internal breaker panel in the 240 Building — the jail’s largest housing unit. Approximately 407 inmates, about half of the facility’s population, were safely moved to other buildings within the secure perimeter.
According to the Sheriff’s Department, the 240 Building sustained “significant electrical damage” and remains without power. Engineers are assessing the extent of the damage, a process expected to take several days before the building can safely reopen.
Visitation at the Middleton facility is suspended until at least Monday, January 12, while most inmates remain onsite in temporary housing arrangements. Some have been relocated to Middlesex Sheriff’s Office facilities. Attorneys may continue to meet with clients, though officials warn delays are possible.
Sheriff Kevin F. Coppinger emphasized that safety remains the department’s top priority, crediting the professionalism of staff and thanking local first responders for their assistance.
Further updates are expected as electrical assessments continue into the week.
This article was produced by a journalist and may include AI-assisted input. All content is reviewed for accuracy and fairness.
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