26 September 2006
companies that respond to DOD installation fires. In DOD installations serviced
by only local fire departments, hydrant hose threads must meet local
Note 1: Overseas bases with current below grade hydrants in accordance with
local national policy are acceptable.
Note 2: For Navy projects, a 100 mm (4-inch) suction connection must be
provided for facilities that have existing fire hydrants with 100 mm (4-inch)
Hydrant Color Coding.
At facilities which have hydrants on both potable and non-potable water systems,
fire hydrants must be color coded to avoid cross-connections during firefighting.
Hydrant barrels shall be red for non-potable water and yellow for potable water.
Regardless of water source, hydrant bonnet and cap color shall be in accordance
with NFPA 291, Fire Flow and Marking of Hydrants, based on flow capacity.
Exception: Hydrants at DoD facilities serviced only by local civilian fire
departments shall comply with the requirements of the local municipality.
Hydrants must be installed adjacent to paved areas, accessible to fire
department apparatus. Hydrants must not be closer than 1 m (3 ft) nor farther
than 2.1 m (7 ft) from the roadway shoulder or curb line. Hydrants must be
installed with not less than 150 mm (6-inch) connection to the supply main, and
valved at the connection. Barrels must be long enough to permit at least 450 mm
(18-inch) clearance between the center of the 115 mm (4-1/2-inch) suction
connection and grade. The ground must be graded so that any surface drainage
is away from the hydrant. Installation must be in accordance with NFPA 24,
except as modified by this UFC. Suction connection should be perpendicular to
the street to allow straight lined connection to the pumper. At airfields, the tops
of the hydrants should not be installed more than 610 mm (24 inches) above the
level of the adjacent airfield pavement but in no case must the tops of the
hydrants be installed higher than 760 mm (30 inches) above the airfield
A sufficient number of hydrants must be provided so that hose stream demand
can be met without taking more than 4,740 L/min (1,250 gpm) from any single
hydrant. Hydrants must also be spaced in accordance with the following
All parts of the building exterior must be within 106 m (350 ft) of a
hydrant with consideration given to accessibility and obstructions.