(a) The district is created to serve a public purpose and benefit.
(b) The district is created to accomplish the purposes of:
(1) a water control and improvement district as provided by general law and Section 59, Article XVI, Texas Constitution, as limited by this chapter, including the disposal of waste and control of storm water; and
(2) Section 52, Article III, Texas Constitution, as limited by this chapter, that relate to the construction, acquisition, improvement, operation, or maintenance of macadamized, graveled, or paved roads, or improvements, including storm drainage, in aid of those roads.