(a) This section applies to all counties except: (1) Anne Arundel County; (2) Baltimore City; (3) Baltimore County; (4) Cecil County; (5) Charles County; (6) Howard County; (7) Prince George’s County; (8) Queen Anne’s County; and (9) Worcester County. (b) The provisions of §§ 9–105 and 9–106 of this article apply to an act, an ordinance, or a resolution adopted by a commission county under this section. (c) The governing body of a county may: (1) provide for building, maintaining, or repairing any road or sidewalk condemned, ceded, opened, widened, extended, or straightened as public property; (2) pay for the cost to build, maintain, or repair a road or sidewalk by imposing a tax on the assessable base of the county or from the county’s share of the State motor fuel tax; (3) establish the office of county roads engineer; and (4) establish the powers and duties of the county roads engineer. (d) The County Commissioners of Somerset County may maintain, repair, or reconstruct any private road that has been used by the public for at least 20 years.