Texas Special District Local Laws Code - SDLL § 7934.104. Road Standards and Requirements

(a) A road project must meet all applicable construction standards, zoning and subdivision requirements, and regulations of each municipality in whose corporate limits or extraterritorial jurisdiction the road project is located.

(b) If a road project is not located in the corporate limits or extraterritorial jurisdiction of a municipality, the road project must meet all applicable construction standards, subdivision requirements, and regulations of each county in which the road project is located.

(c) If the state will maintain and operate the road, the Texas Transportation Commission must approve the plans and specifications of the road project.

(d) The district shall convey the public roads constructed by or on behalf of the district under Section 7934.103 to Williamson County for ownership, operation, and maintenance by the county.  After the 12th anniversary of the date the county accepts conveyance of the roads, the district shall maintain the public roads located in the district, except that the county shall maintain the east-west arterial roadway located in the district north of the San Gabriel River and south of State Highway 29.  The district's obligation to maintain the public roads located in the district ceases if all of the territory of the district is annexed by a municipality.