 SR 78 is designated as the Ronald Packard Parkway ( after a former Congressman named Ronald Packard from the area ) from I @-@ 5 in the city of Oceanside to I @-@ 15 in the city of Escondido , and Ben Hulse Highway ( after a former state senator named Ben Hulse ) from SR 86 near Brawley to I @-@ 10 near the city of Blythe . The portion of SR 78 from SR 86 in Brawley to CR S3 near Anza @-@ Borrego Desert State Park is designated as part of the Juan Bautista de Anza National Historic Trail auto tour route , promoted by the National Park Service . An informal nickname for the road is " the Hops Highway , " referring to the fact that the 60 @-@ mile ( 97 km ) stretch of SR 78 from Oceanside to Julian passes by one @-@ third of all the breweries in San Diego County . 
