Tex. Spec. Dist. Local Laws Code § 8510.0315

If the authority's exercise of the power of eminent domain, the power of relocation, or any other power granted by this chapter makes necessary relocating, raising, rerouting, changing the grade of, or altering the construction of a highway, railroad, electric transmission line, telephone or telegraph property or facility, or pipeline, the necessary action shall be accomplished at the authority's sole expense.