Utah Code § 41-6a-802: Turning around -- Where prohibited -- Visibility.

(1) As used in this section, "railroad grade crossing" means the area between the passive or active warning signs where a railroad track and roadway intersect.

(2) The operator of a vehicle may not make a U-turn or turn the vehicle to proceed in the opposite direction:

(a) unless the movement can be made safely and without interfering with other traffic;

(b) on any curve, or upon the approach to, or near the crest of a grade, if the vehicle is not visible at a distance of 500 feet by the operator of any other vehicle approaching from either direction; and

(c) on a railroad track or railroad grade crossing.

(3) A violation of Subsection (2) is an infraction.