(a) The portion of Recreational Road 255 between State Highway 63 and U.S. Highway 96 in Jasper County is designated as Sam Rayburn Parkway.
(b) Subject to § 225.021(c), the department shall:
(1) design and construct markers indicating the designation as Sam Rayburn Parkway and any other appropriate information; and
(2) erect a marker at each end of the road and at appropriate intermediate sites along the road.