After the Great Renumbering of 1964, US 60 remained intact east of Beaumont, but for only eight years. Meanwhile, US 70 and US 99 had disappeared completely in Southern California. West of Beaumont, the route that had been US 60 was re-signed as State Route 60 (although often on a somewhat different alignment than the current California 60, as the new freeway had not yet been completed). East of Beaumont, US 60 remained in existence while Interstate 10 supplanted it, with the course of US 60 being moved to Interstate 10 and some sections of the old highway being demolished. In 1972, California decommissioned whatever remained of US 60 within the state as the last segments of Interstate 10 were opened. Parts of old US 60 (which in places coincided with US 70 and US 99) remain as business loops of Interstate 10 in Indio and Blythe.