Tennessee Code Title 55. Motor and Other Vehicles § 55-8-120

(1) When approaching the crest of a grade or upon a curve in the highway where the driver's view is obstructed within three hundred feet (300′) or such distance as to create a hazard in the event another vehicle might approach from the opposite direction;

(2) When approaching within one hundred feet (100′) of or traversing any intersection or railroad grade crossing; or

(3) When the view is obstructed upon approaching within one hundred feet (100′) of any bridge, viaduct or tunnel.