(a) Any agency or instrumentality of the State of Illinois or unit of local government may seek recovery for the cost of the repair or replacement of damaged or destroyed roadway property. As used in this Section, “roadway property” includes road safety equipment and emergency equipment. Depreciation may not be used as a factor in determining the cost of the damaged or destroyed roadway property for which recovery is sought.
     (b) Any agency or instrumentality of the State of Illinois or unit of local government may seek recovery for the cost of the repair of damaged or destroyed highways, highway structures, or traffic-control devices that result from operating, driving, or moving a truck tractor-semitrailer combination exceeding 55 feet in overall dimension authorized under paragraph (1) of subsection (b) or paragraph (1) of subsection (f) of § 15-107 of the Illinois Vehicle Code. The measure of liability for the damage is the cost of repairing the highway, highway structure, or traffic-control device, or the depreciated replacement cost of a highway structure or traffic-control device.