Sec. 251.007.  CLASSIFICATION OF COUNTY ROADS.  (a)  The commissioners court of each county shall classify each public road in the county as a first-class, second-class, or third-class road.
(b)  A county may not reduce a first-class or second-class road to a lower class.
(c)  A first-class road must be not less than 40 feet wide or more than 100 feet wide.  The causeway on a first-class road must be at least 16 feet wide.
(d)  A second-class road and a causeway on a second-class road must meet the requirements applicable to a first-class road.
(e)  A third-class road must meet the requirements applicable to a first-class road, except that:
(1)  a third-class road may be less than 40 but not less than 20 feet wide;  and
(2)  the causeway on a third-class road may be less than 16 but not less than 12 feet wide.
Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.