Fire Flow

What Is Fire Flow?

Fire flow refers to the volume of water, typically quantified in gallons per minute (GPM), necessary to effectively control and extinguish a fire. This calculation incorporates factors such as the structure's size, construction materials, occupancy type, and the intensity of the fire. Not to be confused with water supply, which pertains to the source and delivery of water, fire flow is critical in establishing operational strategies within the Incident Command System (ICS) and ensuring effective resource allocation during fireground operations.

Why Fire Flow Matters on the Fireground

Accurate fire flow assessments are essential for delivering the appropriate amount of water to suppress fires, thereby mitigating risks of fire spread and potential structural failure. This precision supports the safety of both firefighters and civilians by enhancing overall operational effectiveness. Clear definitions reduce communication drift across companies and help maintain accountability and coordinated decision-making when incident conditions change quickly.