(a) In this section, "sole expense" means the actual cost of relocating, raising, lowering, rerouting, or changing the grade of or altering the construction of a facility to provide comparable replacement without enhancement of the facility, after deducting the net salvage value derived from the old facility.
(b) The authority may overflow and inundate any public property and require the relocation of a road, pipeline, transmission line, railroad, cemetery, or highway in the manner and to the extent permitted to a district organized under general law under Section 59, Article XVI, Texas Constitution.
(c) If in the exercise of the power of eminent domain or any other power the authority requires relocating, raising, lowering, rerouting, or changing the grade of or altering the construction of any railroad, transmission line, conduit, pole, property, facility, or pipeline, the action shall be the authority's sole expense.