Apparent delays with establishing a sustained water supply via the building standpipe system are being published in the Asheville Citizens-Times.com today. Direct link HERE
Published reports are indicating possible problems with water delivery to the standpipe system designed to supply water from a street hydrant system to the fifth floor of a burning medical office building likely delayed firefighters as they battled the deadly blaze, according to Fire Department radio transmissions.
Nearly 25 minutes passed from the time the first trucks left their stations about 12:30 p.m. Thursday until a company reported they were finally putting water on the blaze at 445 Biltmore Center from a ladder truck.
Firefighters repeatedly made references to a lack of water, even as they reached the fourth floor and made their way toward flames one floor above according to same publication. They are referencing transcripts from fireground radio transmissions. HERE.
- Asheville NC Fatal FF Mayday Audio 7/28/11; The audio has been edited and most of the Mayday audio from the FF has been edited out
The lack of timely application of water as a suppression agent to disrupt the progressing fire growth and magnitude could contribute towards increased fire severity based upon the fire load package and heat release rate and likely contribute towards untenable interior conditions in the absence of a vent path and confinement of the escalating products of combustion due to fire growth.
- Refer to the CommandSafety.com posting HERE with a typical floor layout plan and interior photos
- Reports indicating delays and challenges in gaining access into various rooms and locations are also being reported whcih should be expected based upon typical medical office layouts and configurations.
Vent path considerations, when addressing interior suppression operations, ventilation profiles and avenues and fire and heat propagation all have considerations and applications when working a seated fire within a compartment fire in a commercial occupancy
Refer to the following links for some further insights on the aforementioned elements and factors;
- FIRE FIGHTING TACTICS UNDER WIND DRIVEN CONDITIONS: LABORATORY …
- Fire Fighting Tactics Under Wind Driven Conditions
- Fire.Gov – Wind Driven Fires
- Fire/EMS Safety, Health and Survival Week: Day Four -The New Fire Ground
- NIST Fire Fighting Tactics Under Wind Driven Conditions: Laboratory Experiments
- A series of experiments was conducted in our Large Fire Laboratory to examine the impact of wind control curtains and externally applied hose streams on a wind driven fire. The results from these experiments will allow us to better understand the fire dynamics within a structure and provide guidance as to the important measurements needed in the future experiments in a high-rise on Governor’s Island in New York City.
- Fire Fighting Tactics Under Wind Driven Conditions Report, HERE
- Reference Data HERE
- NIST Evaluates Firefighting Tactics In NYC High-Rise Test
- NIST Tests New Technology for Fighting High-Rise Fires
- Fire Behavior 101; Taking it to the Streets
- PDFs On Standpipe Systems: HERE and HERE
- San Diego Fire & LIfe Safety Services LINK HERE
- FDNY Standpipe Operations, HERE
- STANDPIPE SYSTEM OPERATIONS: ENGINE COMPANY BASICS BY ANDREW A. FREDERICKS, FDNY (1996),