Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 547.205

(1) Have control of the engineering work in the district.

(2) Make all necessary surveys of the lands within the boundary lines of the district, as described in the petition, and of all lands adjacent thereto that may or will be improved or reclaimed in part or in whole by any system of drainage or levees that may be outlined and adopted.

(3) Make a report in writing to the board of supervisors with maps and profiles of the surveys, which report shall contain a plan for draining and reclaiming the lands described in the petition or adjacent thereto from overflow of or damage by water, and which maps and profiles shall indicate so far as necessary the physical characteristics of the lands, and location of any public roads, railroads and other rights of way, roadways and other property or improvements located on such lands.