Tennessee Code Title 7. Consolidated Governments and Local Governmental Functions and Entities § 7-31-114

(a) Every incorporated city and town shall install ramps at crosswalks, in both business and residential areas, when making new installations of sidewalks, curbs or gutters, or improving or replacing existing sidewalks, curbs or gutters, so as to make the transition from street to sidewalk easily negotiable for persons with disabilities in wheelchairs and for other persons who may have difficulty in making the required step up or down from curb level to street level.

(b) “Ramps,” as used in this section, means a sloping asphalt or concrete surface, from the level of the sidewalk or curb to the level of the street at curbside, extending outward and downward from the curb to the street for such a distance, at such an angle, and at such a width as will facilitate the movement up and down such ramps of persons in wheelchairs or persons who have difficulty in stepping up or down between curb level and street level.

(c) All such ramps shall be constructed or installed in accordance with design specifications for the ramps prepared by the department of transportation. The department shall make available to such municipalities design standards for such ramps.