CONCRETE PIPE & BOX CULVERT INSTALLATION - American ...

the delivery document.
If a pipe is damaged during delivery or unloading,
the pipe should be set aside. Damaged ends,
chips or cracks, which do not pass through the wall,
can usually be repaired.
Many carriers are equipped with automatic unloaders,
which further expedite the unloading of circular
pipe. These automatic unloaders consist of
a forklift type of apparatus mounted at the rear of a
flat bed truck. The forks rotate vertically rather than
move up and down, such that, when the forks are in
a vertical position they extend above the truck bed.
This provides a backstop and cushion for the pipe
sections as they are rolled to the rear of the truck
for unloading. A cradle formed by the forks and
unloader frame securely retains the pipe section
being unloaded as the forks are rotated downward
and lowered to the ground.
Unloading of the pipe should be controlled so as
not to collide with the other pipe sections or fittings,
and care should be taken to avoid chipping or spalling,
especially to the spigots and bells. Caution
should be exercised to be sure personnel are out of
AUTOMATIC UNLOADER
American Concrete Pipe Association • www.concrete-pipe.org