Since the I-15 Mobility Alliance was established, the group has developed a partnership with over 90 public and private sector agencies; developed a comprehensive, multimodal master plan and subsequent update for the I-15 Corridor; and refreshed the list of prioritized Projects of Interregional Significance. Since 2011, 23 improvements on the current and past list of “Immediate Projects of Interregional Significance” have been completed or are under construction.