State Route 82 is a state highway in the U.S. state of California that runs from Interstate 880 (I-880) in San Jose to I-280 in San Francisco following the San Francisco Peninsula. It is the spinal arterial road of the peninsula and runs parallel to the nearby Caltrain line along much of the route. For much of its length, the highway is named El Camino Real and formed part of the historic El Camino Real mission trail. It passes through and near the historic downtowns of many Peninsula cities, including Burlingame, San Mateo, Redwood City, Menlo Park, Palo Alto, Mountain View, Sunnyvale, and Santa Clara, and through some of the most walkable and transit-oriented neighborhoods in the region.
State Route 72 is a state highway in the U.S. state of California. The route runs along Whittier Boulevard in the Los Angeles area from SR 39 in La Habra to Interstate 605 in Whittier. SR 72 forms part of El Camino Real.
State Route 126 is a state highway in the U.S. state of California that serves Ventura and Los Angeles counties. The route runs from U.S. Route 101 in Ventura to Interstate 5 at the Castaic Junction-Santa Clarita border through the Santa Clara River Valley. The highway is an important connector highway in Ventura County, and serves as an alternate route into the Santa Clarita Valley, and the San Fernando Valley area of Los Angeles and the High Desert of Antelope Valley.
State Route 23 is a state highway in the U.S. state of California that connects the Pacific coast and the Santa Monica Mountains to the Conejo and Santa Clara River valleys. It runs from Pacific Coast Highway in Malibu in Los Angeles County to Ventura Street in Fillmore in Ventura County.
The Avenue of the Giants is a scenic highway in northern California, United States, running through Humboldt Redwoods State Park. It is named for the coast redwoods that tower over the route. The road is a former alignment of U.S. Route 101, and continues to be maintained as a state highway as State Route 254.
State Route 116 (SR 116) is a state highway in the U.S. state of California in Sonoma County. The route runs from SR 1 on the Pacific coast near Jenner to SR 121 south of Sonoma.
U.S. Route 101 Business is a business loop of U.S. Route 101 that runs along Wildwood Avenue in Rio Dell in Humboldt County, California. Its southernmost section between US 101 near Scotia to the north end of the Eel River Bridge is legally defined as an unsigned state highway, State Route 283. The route was defined in 1970 as a transfer from a realigned US 101 after a freeway bypass was built.
State Route 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.
State Route 183 is a state highway in the U.S. state of California, entirely in Monterey County, running from U.S. Route 101 in Salinas to State Route 1 in Castroville.
State Route 36 is an east–west state highway in the U.S. state of California that is routed from U.S. Route 101 in Humboldt County to U.S. Route 395 just east of Susanville in Lassen County. The highway passes through Red Bluff, the county seat of Tehama County, on the northern edge of the Sacramento Valley. The portion of SR 36 travelling past Lassen Volcanic National Park and Lake Almanor is part of the Volcanic Legacy Scenic Byway, a National Scenic Byway. Also, Route 36 between Alton and Susanville is a designated Blue Star Memorial Highway.
State Route 135 is a state highway in the U.S. state of California. It acts as a western bypass of U.S. Route 101 in northern Santa Barbara County that runs through the community of Los Alamos and the center of the city of Santa Maria.
State Route 128 is a state highway in the U.S. state of California, connecting the Mendocino coast to the Sacramento Valley, through the state's Wine Country. It runs from State Route 1 near Albion to Interstate 505 in Winters.
State Route 129 is a state highway in the U.S. state of California, connecting State Route 1 in Watsonville in Santa Cruz County with U.S. Route 101 near San Juan Bautista in San Benito County.
State Route 211 is a state highway in the U.S. state of California that connects Ferndale with U.S. 101 in Humboldt County. The highway was originally designed to be the northernmost segment of State Route 1, but after construction of the Coast Highway through the Lost Coast region was abandoned, the route to Ferndale was renumbered to SR 211.
State Route 253, also known as the Ukiah–Boonville Road, is a state highway in the U.S. state of California that runs between the Anderson and Ukiah valleys in Mendocino County. It crosses the mountains of the Mendocino Range from State Route 128 near Boonville to U.S. Route 101 near Ukiah.
State Route 175 is a state highway in the U.S. state of California that runs through the Mayacamas Mountains, connecting U.S. Route 101 in Hopland in Mendocino County with State Route 29 in Middletown in Lake County.
State Route 197 is a state highway in the U.S. state of California located north of Crescent City in Del Norte County. Running along the north bank of the Smith River as North Bank Road, SR 197 is a bypass connecting U.S. Highways 199 and 101.
State Route 200 is a state highway in the U.S. state of California near Arcata in Humboldt County. It is a cut-off connecting U.S. Route 101 and State Route 299. It runs along the north bank of the Mad River, to the north of the 101-299 junction. It is also known as North Bank Road.
State Route 273 is a state highway in the U.S. state of California that serves as a business loop of Interstate 5 that travels directly through the downtown districts of Anderson and Redding in Shasta County.
U.S. Route 6 (US 6) is a transcontinental United States Numbered Highway, stretching from Bishop, California, in the west to Provincetown, Massachusetts, in the east. The California portion of US 6 lies in the eastern portion of the state, running between Bishop in the Owens Valley to the Nevada state line in Mineral County. Prior to the 1964 state highway renumbering, US 6 extended to the Pacific Ocean in Long Beach, California, as part of the historic auto trail named the Grand Army of the Republic Highway.
US 101 at Cummings 
SR 1 near Leggett 
