Founded in 1986 by Ralph R. Keller, III, CONTRACTORS BARRICADE SERVICE is a distributor of Highway Safety and Work Zone Products in the State of Texas. CBS currently serves and has established working relationships with the Texas Department of Transportation in all 25 districts, many counties, and major metropolitan cities across the State of Texas, as well as the Contractors that perform work for these agencies. Our first involvement with crash cushions started when we began manufacturing the metal barrel VIA’s. At CBS we were involved in the testing of the REACT 350 and were also the original manufacturer.