Idaho Falls, Idaho
Hanson Pipe & Precast
Tuscaloosa, Ala.; West Memphis, Ark.; Sacramento (Jackson), Fla.; Kissimmee, Fla.; Rome, Savannah, Ga.; Hattiesburg, I-55, North side, Miss.; Columbus, Ohio; Tualatin, Ore.; Manassas, Va.
Premarc (Cadillac Concrete Pipe)
Cadillac, Mich.
Rinker Materials-Concrete Pipe Div.
Fresno, Calif.; Middletown, Del.; Greenfield, Whitestown, Ind.; Davenport, Iowa; Thomasville, N.C.
50,001 to 75,000 Hours-U.S. Americast Concrete Products
Ashland, Chesapeake, Va.
Cayuga Concrete Pipe (Oldcastle)