The North Sacramento Freeway, originally a portion of US 40, originally ran west from Marconi Avenue to an intersection with Del Paso Boulevard. The section from Arden Way eastbound back to Marconi Avenue is now part of the currently named Capital City Freeway (while the SR 160 section retains the original freeway name). The original North Sacramento Freeway connected to the Roseville Freeway at the curve north of Marconi Avenue (commonly known as the Marconi Curve, where the freeway once ended at Auburn Boulevard). At the east end of Business 80, the Roseville Freeway continues northeast to Roseville as I-80, while the short unsigned SR 244 heads east to Auburn Boulevard.