Croydon, Pa.

Cretex Concrete Products Midwest Inc.

Cedar Rapids, Iowa; Waukesha, Wis.

Cretex Concrete Products West Inc.

Rapid City, S.D.

Hanson Pipe & Precast

Birmingham (Fayette), Huntsville, Montgomery, Pelham, Ala.; Phoenix (27th Ave.); Little Rock, Ark.; Green Cove Springs, Gretna, Fla.; Sioux Falls, S.D.; Robstown, Texas; Roanoke, Va.

Oldcastle Precast

Lebanon, Tenn.

Rinker Materials-Concrete Pipe Div.