(a) If necessary for the acquisition of the Trinity River State Park, the department may institute condemnation proceedings according to the laws of this state against any person, including a governmental entity.
(b) Costs incurred in the exercise of eminent domain under this section for the relocation, raising, lowering, rerouting, or change in grade or alteration in the construction of any electric transmission, telegraph, or telephone line, railroad, conduit, pole, property, facility, or pipeline may be the sole expense of the department.
(c) "Sole expense" means the actual cost of the lowering, rerouting, or change in grade or alteration of construction in providing comparable replacement without enhancement of the facility, after deducting the net salvage value derived from the old facility.