Business Loop I-5 - Los Angeles

A former business loop for Interstate 5 used to follow the alignment of Historic U.S. 6-99 on San Fernando Road. According to Daniel Faigin at California Highways, it was signed as an Interstate 5 business route in the early 1970s. Prior to the Interstate system, portions were briefly posted as Business U.S. 99 per Rand McNally maps in the 1950s. This route is now signed as Historic U.S. 99.