Cabrillo Freeway / Escondido Freeway
Runs from Ash Street in downtown San Diego to I-15 in Miramar
Built as US 395, the Cabrillo Freeway is the oldest freeway in San Diego. The first section opened in 1947 through Balboa Park. From I-5 to I-8, it is considered a State Scenic Highway, one of the few that are urban. Traffic is also seemingly perpetually heavy from the University Avenue exits south to the 5 due to the narrow roadway as it drops from 5 lanes to 2.