Category Archives: SR-78

Old Highway 78 near Oceanside, CA

State Route 78, one of the original State Highways in the region, has has undergone many changes since it was originally built. Most of the original routing west of Vista, CA, known as Vista Way, has been eliminated by the current alignment of the highway. By the 1960’s, State 78 was an expressway west of Vista, CA. It was gradually upgraded further to a full freeway, bypassing or replacing yet more of the original alignment. Today, there are some original sections still around, albeit very short. The two main sections of old paving, mostly dating to the late 1920’s to early 1930’s, exists near El Camino Real and College Ave in the Oceanside area.

The first section, near El Camino Real, is located on Haymar Dr / S Vista Way and is only partly exposed. Here, the concrete has been repaved but is showing through some of the potholes.

S Vista Way just west of El Camino Real in Oceanside. Note the concrete peeking out from under the asphalt.
S Vista Way just west of El Camino Real in Oceanside. Note the concrete peeking out from under the asphalt.
Closer view of the concrete paving beneath.
Closer view of the concrete paving beneath.

To the east of this section, there is another and more exposed bit of old paving. Adjacent to the Marron Adobe on Haymar Dr (old Vista Way), this paving still retains the feel of the old roadway. No date stamps could be found, but the style of the concrete seems to date it from 1926 to 1935.

Intact section of concrete adjacent to the Marron Adobe.
Intact section of concrete adjacent to the Marron Adobe.
Marker for the Marron Adobe, as in Marron Road "fame".
Marker for the Marron Adobe, as in Marron Road “fame”.

Other sections of older alignments do still exist, but they are all completely reconstructed and no longer retain the old paving.

Brawley Bypass

A new bypass highway was completed a couple years ago by Caltrans around Brawley. Signed as State 78 and State 111, it forms a northeast loop around town. It is an expressway, not a freeway. This distinction makes for some unusual signage where there is an interchange with State 111.

Confusing sign at the exit on the bypass. Is it current or old?
Confusing sign at the exit on the bypass. Is it current or old?
At the bypass, State 111 turns. Signage is a bit confusing with Old Highway 111 signed at the same exit as current Highway 111.
At the bypass, State 111 turns. Signage is a bit confusing with Old Highway 111 signed at the same exit as current Highway 111.
Heading south, only State 111 is signed, though State 78 also runs here.
Heading south, only State 111 is signed, though State 78 also runs here.
Expressway signage for 78
Expressway signage for 78