C.C. Tatham & Associates Ltd. (CCTA) is a Canadian, employee-owned consulting civil engineering firm founded in 1988. CCTA specializes in Environmental, Structural, Water Resources, Transportation and Municipal Engineering with application to new and re-developed commercial, industrial, residential and recreational properties. Our extensive experience combined with providing premier services are key factors in our solid track record of successful projects throughout Ontario to a wide range of satisfied clients, in both the public and private sectors. Headquartered in Collingwood, with branch offices in Bracebridge, Barrie, Orillia and Ottawa, CCTA has a solid team of over 100 employees.