No contract shall be made for the purchase or construction of any bridge or part of a bridge under KRS 180.020 to 180.250 unless:
(1) A road, suitable for heavy travel during all seasons of the year, is in existence, connecting the approaches of the bridge, or the Kentucky approach of an interstate bridge, with roads forming a part of the state primary road system; or (2) Sufficient funds have been appropriated and allocated for the construction of such a road.