Tenn. Code Ann. § 7-32-141

This chapter and chapter 33 of this title shall not repeal, modify, or interfere with the operation of any special or local assessment or abutting property law enacted for the benefit of any particular city or cities; provided, that such chapters shall be additional and supplemental to the powers conferred by such local or special law, and any municipality may take advantage of any of the rights, powers, and authority conferred by such chapters, in addition to those which such cities now possess.