Specializing in heavy/civil, structural and industrial construction, Meridian can provide the services you need to expand, up ... grade and maintain your facilities. Meridian provides construction services for public agencies such as the Arizona Department of Transportation, the New Mexico Department of Transportation, Pima County, Town of Oro Valley, City of Nogales, Oklahoma City, and the Tucson Airport Authority, and for private customers at mines, power plants and railroads throughout Arizona, New Mexico, Oklahoma, west Texas, and Sonora, Mexico. read more