Ohio Revised Code Title LV. Roads Highways Bridges § 5543.06

The county engineer shall annually call a meeting, within the county, at a time and place approved by the board of county commissioners, of all the township and county authorities having directly to do with the construction and repair of roads and bridges within the county. At such meeting, which shall be open to the general public, the engineer, or his designee, shall instruct the proper authorities as to the best and most economical methods for repairing and maintaining the roads and bridges of the county, so as to provide a uniform system of highway work for such county. Each official attending such meeting shall receive his actual and necessary expenses, in addition to his regular per diem or salary, which shall be paid by the county treasurer from the road fund of the county on itemized vouchers approved by the engineer.