California State Route 33

State Route 33
SR 33 highlighted in red
Route information
Maintained by Caltrans
Length	289.699 mi[1] (466.225 km) This route is broken into pieces, and the length does not reflect the overlaps that would be required to make the route continuous.
Existed	1934–present
Tourist routes	Jacinto Reyes Scenic Byway
Major junctions
South end	US 101 in Ventura
Major intersections	SR 150 from Mira Monte to Ojai SR 166 from Cuyama Valley to Maricopa SR 119 in Taft SR 58 in McKittrick SR 269 in Avenal I-5 / SR 145 near Coalinga SR 152 from Dos Palos Y to near Los Banos I-5 in Santa Nella SR 140 in Gustine
North end	I-5 near Tracy
Location
Country	United States
State	California
Counties	Ventura, Santa Barbara, San Luis Obispo, Kern, Kings, Fresno, Merced, Stanislaus, San Joaquin
Highway system
State highways in California Interstate US State Scenic History Pre‑1964 Unconstructed Deleted Freeways
← SR 32 → SR 34

State Route 33 (SR 33) is a north–south state highway in the U.S. state of California. It runs north from U.S. Route 101 in Ventura through the Transverse Ranges and the western side of the San Joaquin Valley to Interstate 5 at a point east of Tracy. SR 33 replaced part of U.S. Route 399 in 1964 during the "great renumbering" of routes. In the unincorporated sections of Kern County it is known as the West Side Highway. In addition, the California Legislature designated the entire Kern County portion as the Petroleum Highway in 2004. The southernmost portion in Ventura is a freeway known as the Ojai Freeway, while it is known as the Maricopa Highway from Ojai to Maricopa.