Utah Code § 17-79-710: Dedication by plat of public streets and other public places.

(1) A plat that is signed, dedicated, and acknowledged by each owner of record, and approved according to the procedures specified in this part, operates, when recorded, as a dedication of all public streets and other public places, and vests the fee of those parcels of land in the county for the public for the uses named or intended in the plat.

(2) The dedication established by this section does not impose liability upon the county for public streets and other public places that are dedicated in this manner but are unimproved unless:

(a) adequate financial assurance has been provided in accordance with this chapter; and

(b) the county has accepted the dedication.