Except as provided in sections 4957.30 to 4957.32, inclusive, of the Revised Code, all crossings constructed after May 3, 1904, whether of highways by railroads, or of railroads by highways, shall be above or below the grade thereof.
Crossings above or below grade
Ohio Rev. Code Ann. § 4957.27, under Chapter 4957 | Elimination Of Crossings.
Ohio Rev. Code Ann. § 4957.27