Decatur-Morgan Chamber Cornerstone Engineering Group, PC Share: Engineering - Consulting / Services Cornerstone Engineering Group, PC Visit Website Request Info 445 E. Moulton St Ste 205 Decatur, AL 35601 (256) 351-1256 (256) 350-5582 (fax) Rep Info Whom to Contact Haynes S. Smith, PE President Phone: (256) 351-1256 Fax: (256) 350-5582