County Materials Corporation is a manufacturer of concrete masonry units, architectural concrete masonry, ready-mix concrete, prestressed concrete beams, hollowcore plank, manholes, box culverts, reinforced concrete pipe, precast specialty products, retaining walls, and bridge girders. Our state-of-the-art plants produce high-quality products that exceed industry standards. Since 1946, County Materials has supplied products for residential, commercial, industrial, and heavy-highway projects.