(a) General rule.--The county commissioners may appropriate money to support the installation, maintenance or repair of ornamental illumination of any section of a street that abuts the courthouse or other county building in the county seat.
(b) Limitation.--The appropriation by the county commissioners under subsection (a) may not exceed the amount that shall be assessed for ornamental illumination upon owners of an equivalent frontage of property abutting upon the street, measured by the foot front rule.