§ 151.143 REQUIREMENTS FOR CONSTRUCTION.
   Every off-street loading area shall be graded and improved with a compacted gravel base at least seven inches thick, surfaced with at least four inches of asphalt or similar impermeable, all weather dustless surface.
Cross-reference:
   More specific construction requirements, see §§ 151.220 through 151.223
   Type of work involved, see I.D.O.T. standards