Prior to becoming a Fire & Life Safety Consultant with NY Fire Consultants Inc. and a certified instructor at NY Fire Safety Institute (NYFSI), Deputy Chief Dennehy’s last assignment with the FDNY was at Manhattan’s 3rd Division which covered 34th Street to 125th Street and from the Hudson River to the East River.
Deputy Chief Dennehy operated at fires and emergencies in Grand Central Terminal, Cathedral of St. John the Devine, and HazMat incidents involving suspected anthrax, asbestos and carbon monoxide poisoning.
Before retiring in 2003, Deputy Chief Dennehy was also the Fire Prevention Coordinator for the division. These duties involved supervision of fire companies, recognition of serious building hazards or violations of law, and the necessary actions to remedy the situations.
Deputy Chief Dennehy was also responsible for ensuring that buildings with unique designs or hazardous conditions were entered into the FDNY computer program (CID) that alerts firefighters to these conditions when responding to that particular building.
Deputy Chief Dennehy was an Instructor at Chief Officers Command Course for eight years and has written articles on firefighting tactics for the department’s magazine WNYF.