Utah Code § 41-6a-1010
Unmarked crosswalk locations -- Restrictions on pedestrian.
(1) A highway authority in its respective jurisdiction may, after an engineering and traffic investigation, designate unmarked crosswalk locations where: (a) pedestrian crossing is prohibited; or (b) pedestrians shall yield the right-of-way to vehicles. (2) The restrictions in Subsection (1) are effective only when traffic-control devices indicating the restrictions are in place.