Sec. 252.302. ORGANIZATION OF SYSTEM. (a) The county road department is responsible for the construction and maintenance of county roads. (b) The county road department includes: (1) the commissioners court as the policy-making body; (2) the county road engineer as the chief executive officer; (3) other administrative personnel; and (4) road employees. Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.