Baltimore Releases Investigation Results for Causes of Underground Fires

BALTIMORE, MD – Mayor Brandon M. Scott has announced the findings of an investigation into recent fires within Baltimore City’s underground conduit system. RTI Group LLC, a forensic consultant, has concluded its review of a fire that occurred on September 29, 2024, at the intersection of Charles and Pleasant Streets. The investigation identified risk factors contributing to the incident and has put forth recommendations aimed at preventing similar occurrences in the future.

The underground fire, which originated in a manhole and spread through connected ductwork, was attributed to the detonation of combustible gases that had accumulated over time. The incident resulted in damage to neighboring businesses and necessitated a power outage affecting a significant portion of the downtown area. RTI Group’s comprehensive analysis involved an examination of the affected manhole and surrounding conduit, physical evidence recovered from the site, and interviews with personnel from the Department of Transportation (DOT), the Fire Department, and Baltimore Gas and Electric (BGE).

Based on its findings and expertise in fire prevention, RTI Group has developed a series of recommendations that will guide an implementation plan led by the DOT. This plan will involve collaboration with the City’s underground utility partners. As a preliminary step, the DOT has already initiated a pilot monitoring system designed to detect elevated gas levels and high temperatures within the manhole where the September 2024 fire occurred. The department is currently reviewing bids for a more extensive monitoring system as part of the broader implementation strategy.

The investigation’s findings underscore the challenges associated with aging infrastructure and the need for proactive measures to ensure public safety. The City’s Department of Transportation is committed to working with utility partners to address the risks posed by underground fires and manhole explosions, aiming to mitigate their potential impact on residents and businesses.

Article by Mel Anara, based upon information from the City of Baltimore.

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