Telescoping or pop-up bollards slide into in-ground receivers
Bollards can be used to help control access to multi-use spaces. Driveways, streets, parking spots, and plazas may only allow vehicle access at certain times or to certain people. Retractable bollards offer a simple, attractive solution. They neatly telescope down into in-ground receivers when unlocked, sitting flush with the ground, so they are neither a tripping hazard nor an obstruction. When extended, they offer a sleek, clean perimeter edge that guides and manages traffic.
Manually retractable bollards easily telescope up and down. A single-key locking mechanism allows the operator to
lock them upright or release them back into the receiver for short- or long-term access. When deployed in their
raised position, the bollards provide a clear visual barrier to vehicles.
At sites where access changes frequently, these bollards make the change a simple matter of walking past them: no
carting or storing necessary, as might be done with removable bollards. This quick access control makes them very
useful for places where access changes multiple times per day or week.
High-quality 316 stainless steel
316 grade stainless steel is alloyed with molybdenum, which
provides increased corrosion resistance in harsh
outdoor conditions. It maintains integrity much longer than other grades of stainless steel when in
high-saline environments, like coastal cities or cities that use de-icing chemicals. The bollards can also
be powder coated for additional protection, to increase visibility, or to complement or match the
environment. Optional reflective strips can help make these bollards visible to drivers in low-light
Installation and maintenance
Retractable bollard receivers must be dug into the substrate, since the bollard body slides completely into the
ground receiver. To keep bollards functioning over a long time, planning and proper installation are important.
Outdoor sites accumulate dust and debris over time. To ensure long-term operability it is important to schedule
maintenance of manual retractable bollards into the yearly site schedule. Bollards should periodically be removed
and have moving parts lubricated. The receivers should be vacuumed of debris. For detailed technical information,
see the Retractable Bollard Technical Guide.
Proper drainage is a very important requirement for the long life of raising bollards, and consultation with an
engineer can provide specifics to a location. If the bollard receivers fill with standing water, it increases wear
on both the bollard and the installation. Even stainless steel will begin the process of corrosion during an
extended soaking, compromising the finish of the bollard, impacting the smooth operation as well as the aesthetics.
The freezing expansion of standing water, in sub-zero temperatures, could severely impact the operation of the
bollard, through breakage or sticking. For detailed installation instructions, see Installation
R-847x Retractable Bollards.