(a) For a purpose described by Section 174.201, as necessary or useful in the construction, reconstruction, repair, maintenance, and operation of the system, and with the consent of a municipality, county, or other political subdivision, a district may:
(1) use streets, alleys, roads, highways, and other public ways of the political subdivision; and
(2) relocate, raise, reroute, change the grade of, or alter, at the district's expense, the construction of a publicly owned or privately owned street, alley, highway, road, railroad, electric line or facility, telegraph or telephone property or facility, pipeline or facility, conduit or facility, and other property.
(b) A district may not use or alter:
(1) a road or highway in the state highway system without the permission of the commission; or
(2) a railroad without permission of the railroad.
Official text of the Texas Transportation Code as published by the Texas Legislative Council.