Tennessee Code Title 29. Remedies and Special Proceedings § 29-16-126

(a) In any counties of this state having a population of not less than one hundred thousand (100,000) nor more than one hundred fifty thousand (150,000) according to the federal census of 1960 or any subsequent federal census, any hospital incorporated as a general welfare corporation under the laws of the state of Tennessee shall have the power of eminent domain and shall have the right and authority to condemn such lands, property, property rights, privileges and easements of others as may in the judgment of its board of directors, together with the concurrence of two thirds ( 2/3 ) of the members of the governing body of the municipality in which such hospital is located or in the event such hospital is located outside the boundaries of an incorporated municipality then together with the concurrence of two thirds ( 2/3 ) of the county legislative body of the county of location, be deemed necessary or proper for the purpose of providing buildings and other facilities, including any extension, enlargement or improvement for hospital purposes only.

(b) The land or property sought to be condemned must be adjacent and contiguous to the property upon which such hospital is presently located and not across any street.