Driver Alert: The westbound 12300 South to northbound I-15 on-ramp will be closed from 8 p.m. on June 20 to 8 a.m. on June 21 for utility work. DETOUR: Drive north on State Street and use the 11400 South on-ramp. The eastbound 12300 South to northbound I-15 on-ramp will remain open. See map for detour details. This work is part of a UDOT project. Learn more: http://www.udot.utah.gov/i15northbound/