Sec. 313.021.  HIGHWAY IMPROVEMENTS AUTHORIZED.  (a)  A municipality may improve a highway within its limits.
(b)  A municipality that has a population of more than 285,000 may make an improvement on a highway outside the municipality's limits if the improvement does not extend more than 150 feet from the municipal limits.
Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.