Sec. 62.104.  DUTIES OF DISTRICT ENGINEER.  It shall be the duty of the district engineer:
(1)  to make all necessary surveys, examinations, investigations, maps, plans, and drawings with reference to proposed improvements;
(2)  to make estimates of the cost of proposed improvements;
(3)  to supervise the work of improvement;  and
(4)  to perform all duties which may be required of him by the commission.
Acts 1971, 62nd Leg., p. 110, ch. 58, Sec. 1, eff. Aug. 30, 1971.