(a) The interchange in La Porte between eastbound State Highway 225 and southbound State Highway 146 is designated as the Aaron M. Hicks Memorial Interchange.
(b) Subject to Section 225.021(c), the department shall:
(1) design and construct markers indicating the interchange number, the designation as the Aaron M. Hicks Memorial Interchange, and any other appropriate information; and
(2) erect a marker at one or more sites on the interchange and approaching the interchange in each direction.