Nebraska Statutes: 31-105
31-105. Drainage improvements; survey; approval of county board. The county clerk shall deliver a copy of the petition to the county board at its next meeting, which shall thereupon take to its assistance a competent surveyor or engineer, if in the opinion of the board his services are necessary, and at once proceed to view the line of the proposed improvement. The board shall determine by actual view of the premises along and in the vicinity thereof, whether the improvement is necessary, or will be conducive to the public health, convenience or welfare, and whether the line described is the best route. The board shall report its findings in writing, and order the clerk to enter the same on its journal.