Ross Prestressed Concrete, 1870 Highway 11 W, Bristol, TN 37620, US

Permatile Concrete Products Company has been operational for more than 40 years. The company is one of the leading manufacturers of concrete products in the United States. Permatile is approved by the National Pavement Contractor Association and American Concrete Pipe Association. The company offers a wide variety of products, such as nonreinforced, porous, reinforced, architectural and elliptical pipes, and standard, drop, leachate and custom manholes. It also offers cylindrical and multisided storm structures, precast barrel sections, culvert systems, scourwalls, wingwalls and headwalls, and double and triple cell boxes. Additionally, Permatile provides retaining and residential walls, HY-SPAN bridge systems, tunnels, cable concrete, and traffic barriers. Permatile Concrete Products Company is located Bristol, Va.