Ohio Rev. Code § 5553.06
If the board of county commissioners, after viewing the proposed improvement, considers such improvement of sufficient public importance, it shall instruct the county engineer to make an accurate survey and plat of such improvement and furnish an accurate and detailed description describing therein the center line and right of way lines. The engineer shall also furnish an accurate and detailed description of each tract of land which he believes it is necessary to take in the event such improvement is made, together with the name of each owner. The engineer shall, at the time of making such survey, set stakes at the termini of each right of way line, at all angles between such termini, and at sufficient other points on the right of way lines so that the bounds of such improvement are discernible to property owners and other interested persons. The engineer shall make a report in writing to the board on or before the date fixed for the final hearing. Such report shall set forth the opinion of the engineer for or against such improvement. In case it is proposed to locate or establish a road, such report shall state the width to which the improvement shall be opened, shall be accompanied by said plat and detailed and accurate descriptions, and shall be filed with the board.
R.C. §5553.06