The route travels south on Fremont St. and then turns east onto Garces Hwy.

Continuing east, it leaves the farmland just before crossing SR 65 (Porterville Hwy.).

From there, it starts a gentle climb into the foothills of the Eastern San Joaquin Valley.

It then reaches its highest elevation at Greenhorn Summit – 6102 ft – and starts its descent.

[4] The route started in Oildale, north of Bakersfield on Airport Dr.

The state route was also extended east on Garces Hwy, to the town of Woody, where it connected with the existing SR 155 segment.

[5] Except where prefixed with a letter, postmiles were measured on the road as it was in 1964, based on the alignment that existed at the time, and do not necessarily reflect current mileage.

Route 155 (near the intersection with 6th Ave/Dairy Ave) was the location of the famous "crop duster" scene from the Alfred Hitchcock film North by Northwest.