Tex. Transp. Code § 253.012
(a) If a road in a subdivision or an access road to a subdivision is located in a municipality, the county may improve the road only if the governing body of the municipality and the commissioners court:
(b) Before a county may improve a road located in a municipality under this section:
Added by Acts 2007, 80th Leg., R.S., Ch. 1245 (H.B. 2591), Sec. 2, eff. June 15, 2007.