On June 8th 2018, at approx. 0330 hours fire crews were dispatched for a still alarm/commercial alarm sounding (2 truck and 1 B/C response) for water flow in Bridgeton, MO.  The building was a single story-sprinklered commercial used for truck repair with several roll up entrance doors.  Upon arrival, battalion chief noted heavy black smoke coming from one of the doors and upgraded to a first alarm.  First on scene crew made entry through a front man door and noted heavy smoke and heat conditions with a small amount of fire to their left as they made entry.  Crews determined a tractor trailer cab was on fire inside the building and extinguished remaining fire with a 1 ½” pre-connect hand line.  Crews opened overhead doors for ventilation and visibility and verified that no other extension to building had occurred and shut down riser that was supplying overhead sprinkler.  Fire was contained to truck of origin with one (1) overhead sprinkler head activation.  Fire investigation revealed no other ignition source or head discharge.  Building was turned back over to owner who called sprinkler company for head replacement and system to be brought back into service.  Company replaced 9 sprinkler heads due to heat exposure and business operations resumed that day.  Without sprinkler system damage would have been much more extensive and more than likely involved the actual building itself.


Todd Phillips

Deputy Chief/Fire Marshal

Robertson Fire Protection District