U.S. Route 101, or U.S. Highway 101 (US 101), is a north–south United States Numbered Highway that traverses the states of California, Oregon, and Washington, on the West Coast of the United States. It travels for over 1,500 miles (2,400 km), primarily along the Pacific Ocean, and is also known by various names, including El Camino Real in parts of California, the Oregon Coast Highway, and the Olympic Highway in Washington. Despite its three-digit number, normally used for spur routes, US 101 is a classified as a major route in the United States Numbered Highway System.
State Route 1 (SR 1) is a major north–south state highway that runs along most of the Pacific coastline of the U.S. state of California. At 656 miles (1,056 km), it is the longest state route in California, and the second-longest in the US after Montana Highway 200. SR 1 has several portions designated as either Pacific Coast Highway (PCH), Cabrillo Highway, Shoreline Highway, or Coast Highway. Its southern terminus is at Interstate 5 (I-5) near Dana Point in Orange County and its northern terminus is at U.S. Route 101 (US 101) near Leggett in Mendocino County. SR 1 also at times runs concurrently with US 101, most notably through a 54-mile (87 km) stretch in Ventura and Santa Barbara counties, and across the Golden Gate Bridge.
Interstate 680 (I-680) is a north–south auxiliary Interstate Highway in Northern California. It curves around the eastern cities of the San Francisco Bay Area from San Jose to I-80 at Fairfield, bypassing cities along the eastern shore of San Francisco Bay such as Oakland and Richmond while serving others more inland such as Pleasanton and Concord.
Interstate 280 (I-280) is a 57.22-mile-long (92.09 km) major north–south auxiliary Interstate Highway in the San Francisco Bay Area of Northern California. It runs from I-680 and US Route 101 (US 101) in San Jose to King and 5th streets in San Francisco, running just to the west of the larger cities of San Francisco Peninsula for most of its route.
The Bayshore Freeway is a part of U.S. Route 101 in the San Francisco Bay Area of the U.S. state of California. It runs along the west shore of the San Francisco Bay, connecting San Jose with San Francisco. Within the city of San Francisco, the freeway is also known as James Lick Freeway, named after the California philanthropist. The road was originally built as a surface road, the Bayshore Highway, and later upgraded to freeway standards. Before 1964, it was mostly marked as U.S. Route 101 Bypass, with US 101 using the present State Route 82.
State Route 85 is a state highway which connects the cities of southern San Jose and Mountain View in the U.S. State of California. The highway intersects with major highways such as I-280, SR 17, and SR 87. The route serves as a bypass of U.S. Route 101 in the Santa Clara Valley area, running through the foothill cities of Los Gatos, Saratoga, Cupertino, roughly paralleling the Santa Cruz Mountains up to its interchange with I-280.
State Route 152 is a state highway that runs from east to west near the middle of the U.S. state of California from State Route 1 in Watsonville to State Route 99 southeast of Merced. Its western portion provides access to and from Interstate 5 toward Southern California for motorists in or near Gilroy and San Jose.
State Route 87, known as the Guadalupe Freeway or referred to by the locals as Highway 87, is a north–south state highway in San Jose, California, United States. Before being upgraded to a freeway, it was Guadalupe Parkway.
State Route 237 is a state highway in the U.S. state of California that runs from El Camino Real in Mountain View to Interstate 680 in Milpitas. Known as the Southbay Freeway for most of its length, SR 237 runs south of the San Francisco Bay, connecting the East Bay to the Peninsula.
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, and Sunnyvale, and through some of the most walkable and transit-oriented neighborhoods in the region.
State Route 2 (SR 2) is a state highway in the U.S. state of California. It connects the Los Angeles Basin with the San Gabriel Mountains and the Victor Valley in the Mojave Desert. The highway's southwestern end is at the intersection of Centinela Avenue at the Santa Monica-Los Angeles border and its northeastern end is at SR 138 east of Wrightwood. The SR 2 is divided into four segments, and it briefly runs concurrently with U.S. Route 101 (US 101) and Interstate 210 (I-210). The southwestern section of SR 2 runs along a segment of the east–west Santa Monica Boulevard, an old routing of US 66, to US 101 in East Hollywood; the second section runs along segments of both the north–south Alvarado Street and Glendale Boulevard in Echo Park; the third section to I-210 in Glendale is known as the north–south Glendale Freeway; and the northeastern portion from I-210 in La Cañada Flintridge to SR 138 is designated as the Angeles Crest Highway.
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 71 (SR 71) is a 15-mile (24 km) state highway in the U.S. state of California. Serving Riverside, San Bernardino, and Los Angeles counties, it runs from SR 91 in Corona to the Kellogg Interchange with I-10 and SR 57 on the border of Pomona and San Dimas. The segment from SR 91 to SR 83 in Chino Hills is called the Corona Freeway, formerly the Corona Expressway and before then the Temescal Freeway. SR 71 is designated as the Chino Valley Freeway between SR 83 and the Kellogg Interchange.
State Route 25 is a state highway in the U.S. state of California between State Route 198 in Monterey County and U.S. Route 101 in Santa Clara south of Gilroy. For most of its length, SR 25 runs through the center of San Benito County.
State Route 130 is a state highway that connects U.S. Route 101 in San Jose, California with the Lick Observatory on Mount Hamilton. The segment in San Jose runs along Alum Rock Avenue, while the remainder of SR 130 follows Mount Hamilton Road, a narrow two-lane highway that goes through the Diablo Range in Santa Clara County. Legislatively, SR 130 extends east from Mount Hamilton to Patterson in Stanislaus County, forming a route between the Santa Clara and San Joaquin valleys, but the traversable route via San Antonio Valley Road and Del Puerto Canyon Road is maintained at the county level and has not yet been formally adopted by the California Department of Transportation (Caltrans).
State Route 68 is a state highway in the U.S. state of California, located entirely in Monterey County. It runs from Asilomar State Beach in Pacific Grove to U.S. Route 101 in Salinas. The approximately 20-mile (32 km) long highway serves as a major route between the Monterey Peninsula and Salinas.
State Route 156 is a west to east state highway in the U.S. state of California, running from State Route 1 in Castroville to State Route 152 near Hollister. It serves as part of the primary route from the Monterey Peninsula to either the San Francisco Bay Area or the California Central Valley.
State Route 132 is a state highway in the U.S. state of California that connects the Central Valley with the Sierra Nevada foothills and the California Gold Country. Its western segment also connects the city of Modesto with the San Francisco Bay Area via I-580, although this route is discouraged due to it being a two-lane road between Modesto and Interstate 5. East of Modesto, the road climbs the foothills and eventually ends at SR 49 at Coulterville.
U.S. Route 101 (US 101) is a major north–south United States Numbered Highway, stretching from Los Angeles, California, to Tumwater, Washington. The California portion of US 101 is one of the last remaining and longest U.S. Routes still active in the state, and the longest highway of any kind in California. US 101 was also one of the original national routes established in 1926. Significant portions of US 101 between the Los Angeles area and the San Francisco Bay Area follow El Camino Real, the commemorative route connecting the former Alta California's 21 missions.
There are 21 routes assigned to the "G" zone of the California Route Marker Program, which designates county routes in California. The "G" zone includes county highways in Monterey, San Benito, San Luis Obispo, Santa Clara, and Santa Cruz counties.
US 101 in Gilroy 
SR 152 in Gilroy
SR 85 in San Jose 
CR G10 in San Jose
CR G21 in San Jose
CR G8 in San Jose
