Roadshark Road Spikes at Military Base Georgia USA
In 2007 Roadshark supplied one-way, in ground road spike barriers at a military base. The previous contractor had installed equipment that was poorly designed and did not work (the thin blades were getting bent and jamming from normal use).
In their 6th year of service. Spring replacements have been every 9 months on average. These heavy duty barriers are still in use today (June 2012)!