State Route 84 is a state highway in the U.S. state of California that consists of two unconnected segments, one in the San Francisco Bay Area and the other primarily in the Sacramento–San Joaquin River Delta area.
State Route 299 is an east–west state highway in the U.S. state of California that runs across the northern part of the state. At 305.777 miles (492.100 km), it is the third longest California state route, after Route 1 and Route 99, and the longest east-west route. Route 299's western terminus is at US 101 at the northern edge of Arcata, and its eastern terminus is at the Nevada state line at a point east of Cedarville. Between Arcata and Redding, Route 299 intersects with State Route 96, and is briefly co-signed with State Route 3. In Redding, it intersects with State Route 273, State Route 44, and Interstate 5. East of Redding, it intersects with State Route 89, and a section is co-signed with State Route 139 before reaching Alturas. It is then co-signed with U.S. Route 395 northeast of Alturas, and then runs east through Cedarville and to the border with Nevada. A ghost town, Vya, Nevada, can be reached via this route, which after the border becomes a dirt road, which was formerly Nevada State Route 8A. The segment of SR 299 between Arcata and Redding is the Trinity Scenic Byway, a National Forest Scenic Byway.
State Route 131, named Tiburon Boulevard along its entire length, is a state highway in the U.S. state of California in Marin County. It is a short route that connects U.S. Route 101 with the town of Tiburon.
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 32 is an east–west state highway in the U.S. State of California which is routed from Interstate 5 in Orland, across the Sacramento Valley and through Chico, through the northern Sierra Nevada, and ending at SR 36 and SR 89 in eastern Tehama County.
State Route 45 is a state highway in the U.S. State of California that travels in a north–south direction in the Sacramento Valley from Route 113 in Knights Landing to Route 32 in Hamilton City.
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 269 is a state highway in the U.S. state of California. It runs in the San Joaquin Valley from State Route 33 in Avenal to State Route 145 in the community of Five Points.
State Route 147 is a state highway in the U.S. state of California. The route runs along the eastern side of Lake Almanor. It serves as a bypass to connect State Route 89 and State Route 36 on the eastern side of the lake, whereas the two highways already meet on the western side in Chester.
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 281 is an approximately 3-mile (4.8 km) state highway in the U.S. state of California that runs along Soda Bay Road from near the southern shore of Clear Lake to State Route 29 in Glenview in Lake County. SR 281 is legislatively defined to be a loop route of SR 29 that runs along or near the southern edge of Clear Lake from Glenview to Lakeport, but most of this is unconstructed.
State Route 169 is a state highway in the U.S. state of California that is separated into two distinct segments by undeveloped areas in the Yurok Indian Reservation in Del Norte and Humboldt counties. The western segment runs from U.S. Route 101 near Klamath to Klamath Glen, while the eastern segment goes from Wautec Village to State Route 96 near Weitchpec.
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 191 is a state highway in the U.S. state of California. Known also as Clark Road, it is a spur route off of State Route 70 in Butte County, providing a connection to the town of Paradise.
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 201 is a state highway in the U.S. state of California that serves Fresno and Tulare counties in the Central Valley. It connects State Route 99 in Kingsburg with State Route 245 at Elderwood. State Route 201 forms a short concurrency with State Route 63 near Calgro.
State Route 221 is a state highway in the U.S. state of California that runs in and just outside the City of Napa, providing access to Napa Valley College and Napa State Hospital. The highway's southern terminus is with State Route 12 and State Route 29 outside the southeast corner of the city, and its northern terminus is at State Route 121 inside the city. SR 221 forms part of the Napa-Vallejo Highway with SR 29.
State Route 265 is a state highway in the U.S. state of California that is part of both Business Loop 5 and Weed Boulevard in the City of Weed in Siskiyou County. SR 265 runs from U.S. Route 97 to Interstate 5.
State Route 270, also known as Bodie Road, is a state highway in the U.S. state of California. It is a spur route off of U.S. Route 395 south of Bridgeport in Mono County, leading into Bodie State Historic Park.
State Route 271 is a state highway in the U.S. state of California that runs along a former routing of U.S. Route 101 in Mendocino and Humboldt counties. It also connects with State Route 1 just before that route's terminus with US 101 in Leggett. After US 101 was realigned, SR 271 was reduced to being a frontage road in discontinuous segments. While US 101 stays mostly in second growth redwoods, SR 271 is used as a scenic alternate through several old growth redwood groves.
US 101 in Eureka 
