K.S.A. 24-513

The board of directors shall appoint a competent engineer, at such salary as they may deem proper, who shall make a careful study of conditions along the watercourses of the district, and prepare plans and specifications, together with estimates of the cost of making the improvements authorized in this act which he may deem necessary to be made, including the cleaning of the channels of the watercourses of all obstructions.