(a) The portion of Interstate Highway 10 in Culberson County between mile marker 150 and mile marker 155 is designated as the U.S. Border Patrol Agent Rogelio Martinez Memorial Highway. The designation is in addition to any other designation.
(b) Subject to Section 225.021(c), the department shall:
(1) design and construct markers indicating the designation as the U.S. Border Patrol Agent Rogelio Martinez Memorial Highway and any other appropriate information; and
(2) erect a marker at each end of the highway and at appropriate intermediate sites along the highway.