Tennessee Code Title 42. Aeronautics § 42-5-108

(a) In the acquisition of property by eminent domain proceedings authorized by this chapter, the municipality shall proceed in the manner provided by title 29, chapter 16. For the purpose of making surveys and examinations relative to any eminent domain proceedings, it is lawful to enter upon any land, doing no unnecessary damage.

(b) Notwithstanding any other statute or of any applicable municipal charter, the municipality may take possession of any property to be acquired by eminent domain proceedings at any time after the commencement of the proceedings.

(c) The municipality shall not be precluded from abandoning eminent domain proceedings in any case where possession of the property has not been taken, even after a trial jury in circuit court has rendered a verdict as to damages for the property taken by the proceedings and at any time prior to the entry of a final decree disposing of the entire eminent domain proceedings.