In this subchapter:
(2) "Civil works project" means:
(A) roads, streets, bridges, utilities, water supply projects, water plants, wastewater plants, water distribution and wastewater conveyance facilities, desalination projects, wharves, docks, navigation channels, dredge material placement areas, airport runways and taxiways, storm drainage and flood control projects, or transit projects;
(B) types of projects or facilities related to those described by Paragraph (A) and associated with civil engineering construction; and
(C) buildings or structures that are incidental to projects or facilities that are described by Paragraphs (A) and (B) and that are primarily civil engineering construction projects.
(6) "Local governmental entity" means a municipality, a county, a river authority, a defense base development authority established under Chapter 379B, a board of trustees under Chapter 54, Transportation Code, a municipally owned water utility with a separate governing board appointed by the governing body of a municipality, or any other special district or authority authorized by law to enter into a public works contract for a civil works project. The term does not include a regional tollway authority created under Chapter 366, Transportation Code, a regional mobility authority created under Chapter 370, Transportation Code, or a water district or authority created under Section 52, Article III, or Section 59, Article XVI, Texas Constitution, with a population of less than 50,000.