(a) The authority of the Texas Transportation Commission under this section is limited to a water line on a state highway not in a municipality. The authority of the commissioners court under this section is limited to a water line on a county road not in a municipality.
(b) The Texas Transportation Commission or the commissioners court of a county may require a water corporation or municipality to relocate the corporation's or municipality's water line at the corporation's or municipality's own expense to allow the widening or other changing of a traffic lane.
(c) To impose a requirement under this section, the Texas Transportation Commission or the commissioners court, as appropriate, must give to the water corporation or municipality 30 days' written notice of the requirement. The notice must identify the water line to be relocated and indicate the location on the new right-of-way where the corporation or municipality may place the line.