(a) The Commissioner of Highways may propose creation by a county commission or municipality of development or redevelopment areas or districts and project plans, or propose amendments to an existing project plans. This plan may include related infrastructure that is necessary or convenient to economic development adjacent to the proposed project.

(b) Project plans proposed by the Commissioner of Highways are limited to those related to the construction, reconstruction, improvement or modernization of state roads, as defined in article four, chapter seventeen of this code, that are part of the state road system, as defined in that article or that will become part of the state road system upon completion of the construction. All construction, reconstruction, improvement or modernization and maintenance of state roads shall be done by or under the supervision of the Commissioner of Highways.

(c) All road projects that are accepted as part of the state road system, and all real property interests and appurtenances, is under the exclusive jurisdiction and control of the Commissioner of Highways, who may exercise the same rights and authority as he or she has over other transportation facilities in the state road system.

(d) Except as provided in an intergovernmental agreement executed by one or more county commissions, municipalities and/or the Commissioner of Highways and as provided in this article, a county commission or municipality may not be required to pay for the cost of constructing, reconstructing, improving, maintaining a road that is part of the state road system as defined in article four, chapter seventeen of this code or to pay any other expense fairly related to that road.

(e) The powers conferred by this article on the Commissioner of Highways or the Division of Highways are in addition and supplemental to the powers conferred upon the Commissioner of Highways, the Division of Highways, and the Department of Transportation by the Legislature elsewhere in this code.