Texas Parks and Wildlife Code - PARKS & WILD § 66.0091. Fishing in Certain Man-Made Waterways

(a) This section applies to a county in which at least 60 percent of the total area of the county is regularly covered by water and in which the majority of the total area of a wildlife refuge for species of wildlife on the federal endangered species list is located.

(b) No person may take or attempt to take fish of any variety by the use of nets, except hand-cast nets or minnow seines, from any canal or other artificial or man-made waterway within any platted subdivision platted under Chapter 231, Acts of the 40th Legislature, Regular Session, 1927 (Article 974a, Vernon's Texas Civil Statutes),  1 if two or more residences abut onto the canal or waterway.

(c) No person may set any net in the mouth of a canal or waterway described in this section that interferes with or impedes the free movement of fish into or out of the canal or waterway.