california state highway 78

California State Highway 78 is a highway from Oceanside to Blythe. For the first few miles starting out from Oceanside it is a freeway. It begins at a nonstandard interchange with Interstate 5, including a traffic signal. Then the 78 goes through Vista, and this part of the freeway is congested during rush hour. The freeway then continues into San Marcos and Escondido and intersects with Interstate 15. After that the freeway abruptly ends at the intersection with Broadway, after the Centre City Parkway interchange (old US 395). 78 then snakes through the Escondido city streets and leaves the city on the way to the San Diego Wild Animal Park and Ramona. 78 then continues on a curvy mountain road to Julian. After that the highway goes into Imperial County and Brawley, when it is multiplexed with CA-86. The highway goes through the desert into Riverside County where it ends in Blythe at Interstate 10.

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