COST OF RELOCATING OR ALTERING PROPERTY.

(a) In this section, "sole expense" means the actual cost of relocating, raising, lowering, rerouting, changing the grade of, or altering the construction of a facility described by Subsection (b) to provide comparable replacement without enhancement of the facility, after deducting the net salvage value of the old facility.

(b) If the district's exercise of its power of eminent domain makes necessary relocating, raising, lowering, rerouting, changing the grade of, or altering the construction of a highway, railroad, electric transmission or distribution line, telephone or telegraph property or facility, or pipeline, the necessary action shall be accomplished at the sole expense of the district unless the owner of the relocated or altered facility has a legal obligation to pay those expenses.