US 99 then headed over Tejon Pass to the San Joaquin Valley. Just north of the route's entry to the valley, I-5 splits off from US 99, and US 99 continued on the current route of SR 99, to Bakersfield, Fresno, and Sacramento. Many older segments of the highway between the Grapevine and Sacramento still exist as local streets, many of them having Golden State in their names (such as Golden State Avenue, Golden State Boulevard, Golden State Highway).