Utah Code Ann. § 72-5-105
(2)
(3)
(b)
(c) A temporary closure under Subsection (3)(a) may be authorized only under the following circumstances:
(i) when a federal authority, or other person, provides an alternate route to an R.S. 2477 right-of-way or portion of an R.S. 2477 right-of-way if the alternate route is:
(d)
(f) A temporary closure authorized under Subsection (3)(c)(ii) shall:
(5) Before authorizing a temporary or indefinite closure as described in Subsection (4), a highway authority shall:
(c) except for a closure under Subsection (3)(c)(iii), post the notice:
(7)
(a) A local highway authority may close to vehicular travel and convert to another public use or purpose a highway, road, or street over which the local highway authority has jurisdiction, for an indefinite period of time, if the local highway authority makes a finding that: