(a) The commissioners court by order shall declare each line designated in the application or designated by the commissioners court to be a public road if the commissioners court determines, at a regular term of court and after service of notice required by Section 286.066, that:
(1) this subchapter applies to the proposed road; and
(2) the proposed road is of public importance.
(b) The order must direct the owner of each designated line to open the road and leave the road open for a space of 15 feet on each side of the line. A marked tree or other object used to designate a line and the corners of a survey may not be removed or defaced.

(c) Notice of the order must be served on the owner of the line immediately. Service and return of the notice shall be made as provided by Section 286.066.