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State highways in California

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Example of a California state route shield. It is in the shape of a miner's spade to honor the California Gold Rush.
System information
NotesAll classes of state-numbered highways are generally state-maintained.
Highway names
InterstatesInterstate X (I-X) or Route X
US HighwaysU.S. Route X (US X) or Route X

Each state highway in the U.S. State of California is maintained by the California Department of Transportation (Caltrans) and is assigned a Route (officially State Highway Route[1][2]) number in the Streets and Highways Code (Sections 300-635). Most of these are numbered in a statewide system, and are known as State Route X (abbreviated SR-X). United States Numbered Highways are labeled US X, and Interstate Highways are Interstate X, though Caltrans typically uses Route X for all classes.

Since July 1 of 1964, the majority of legislative route numbers, those defined in the Streets and Highways Code, match the sign route numbers. On the other hand, some short routes are instead signed as parts of other routes - for instance, Route 112 and Route 260 are signed as part of the longer State Route 61, and Route 51 is part of Interstate 80 Business.

Route shield signs at the intersection of SR-123 and SR-13 in Berkeley.

Business routes are not maintained by the state unless they are also assigned legislative route numbers. A few routes or sections of routes are considered unrelinquished - a new alignment has been built, or the legislative definition has changed to omit the section, but the state still maintains the roadway - and are officially Route XU. State Route 14U, an old alignment of State Route 14, is the only one signed as such. Some new alignments are considered supplemental[3] and have a suffix of S; State Route 86S, a replacement for State Route 86 between approximately three miles north of the Imperial/Riverside County line west of the Salton Sea and Interstate 10 east of Indio is the only one that includes the "S" suffix on its signing. Both types of suffixed routes are also considered spurs.[4] Current or former unsigned suffixed routes include State Route 156U, signed as State Route 156 Business through Hollister, and State Route 180S, the freeway replacement for State Route 180 in Fresno (now signed as SR 180).

History

Counties covered by the Automobile Club of Southern California (red) and California State Automobile Association (blue)

The first legislative routes were defined by the State Highway Bond Act in 1909. These, and later extensions to the system, were numbered sequentially. No signs were erected for these routes.

The United States Numbered Highways were assigned by the American Association of State Highway Officials (AASHO) in November 1926, but posting did not begin in California until January 1928. These were assigned to some of the main legislative routes in California. Initially, signs were posted by the Automobile Club of Southern California (ASCS) and California State Automobile Association (CSAA), which had been active in signing national auto trails and local roads since the mid-1900s.

In 1934, after the major expansion of the state highway system in 1933 by the California Legislature, California sign route numbers were assigned by the California Division of Highways (predecessor to Caltrans). The California sign route numbers were assigned in a geographical system, completely independent of the legislative routes. Odd-numbered routes ran north-south and even-numbered routes ran east-west. The routes were split among southern California (ACSC) and central and northern California (CSAA) as follows:

  • 0 or 1 modulo 4: central and northern California
  • 2 or 3 modulo 4: southern California

For instance, State Route 1 and State Route 4 were in central and northern California, and State Route 2 and State Route 3 (since moved) were in southern California. A rough grid was used inside the two regions, with the largest numbers - all less than 200 (except for State Route 740, which was related to State Route 74) - in eastern California (north-south) and near the border between the two regions (east-west).

Main article: 1964 state highway renumbering (California)

The Interstate Highway System numbers were assigned by AASHO in late 1959. In 1963 and 1964, a total renumbering of the legislative routes was made, aligning them with the sign routes. Some changes were also made to the sign routes, mostly related to decommissionings of U.S. Routes in favor of Interstates.

Since the 1990s, many non-freeway routes, especially in urban areas, have been deleted and turned over to local control. Not all cities have been prepared to accept such routes from Caltrans simultaneously, so many have been decommissioned from the state system one fragment at a time.

Nomenclature in California English

See also: California English

One often-cited cultural difference between Northern and Southern Californians is that the latter tend to put "the" before highway numbers (e.g. "taking the 5 to L.A."), while the former use the number alone (e.g. "taking 80 to San Francisco") or less frequently, with "I-" in the case of interstate freeways.

List of routes

State Routes

Route Description
1 Often referred to as Pacific Coast Highway or P.C.H. in Southern California, as Cabrillo Highway between Las Cruces Junction south of Buellton and Pismo Beach and between San Luis Obispo and San Francisco, and as Shoreline Highway between Manzanita south of Corte Madera and Leggett.
2 Santa Monica Boulevard (former U.S. Route 66), Alvarado Street, Glendale Boulevard, Glendale Freeway, and, in the San Gabriel Mountains, Angeles Crest Highway and Big Pines Highway.
3 A scenic route from 36 south of Peanut in Trinity County to Montague in Siskiyou County that passes through the Shasta-Trinity National Forest and Yreka.
4 Also known, in Contra Costa County, as the John Muir Parkway and, further east, as the California Delta Highway.
7 Runs from the U.S.-Mexico border near the booming city of Mexicali, Baja California to Route 98, extended to Interstate 8 south of Holtville.
9 Travels from California 1 in Santa Cruz to California 17 in Los Gatos via Boulder Creek and Saratoga.
11 Connects 905 to the future Mexican border crossing east of San Ysidro, California.
12 Connects Sebastopol, Santa Rosa, Napa, Fairfield, Suisun City, Rio Vista, Lodi, and San Andreas.
13 Ashby Avenue in Berkeley north of Route 24 and the Warren Freeway, named after Earl Warren, south of Route 24.
14 Also known as the Antelope Valley Freeway from Interstate 5 near the north limit of Los Angeles to the west leg of 138 in Lancaster, Aerospace Highway from Vincent (south of Palmdale) to US 395 north of Inyokern, and Midland Trail from Route 58 north of Mojave to U S 395 north of Inyokern. Two segments of Sierra Highway, part of an old alignment in Los Angeles near its north limit and in Santa Clarita, are designated 14U.
15 Runs from Interstate 8 at its junction with Interstate 15 to Interstate 5 in San Diego.
16 Runs east from California 20 between Clear Lake and Williams to California 49 northwest of Amador City via Woodland and Sacramento.
17 Freeway and expressway that runs between San Jose and Santa Cruz via Patcher Pass.
18 Connects Llano in the eastern Antelope Valley to San Bernardino in the Inland Empire via Victorville and Big Bear Lake.
19 Lakewood Boulevard / Rosemead Boluevard in Los Angeles County from Del Amo Boulevard in Lakewood to Gallatin Road in Pico Rivera.
20 Connects Fort Bragg with the north shore of Clear Lake, Yuba City, Marysville, Nevada City, and Interstate 80 at Emigrant Gap where it ends.
21 State Route 21 was renumbered as part of Interstate 680 in 1976.
22 East 7th Street in Long Beach from SR-1 to Interstate 405, and the Garden Grove Freeway from Interstate 405 in Seal Beach to SR-55 in Orange.
23 Connects Fillmore to Malibu. It traverses A Street in Fillmore, Chambersburg Road, Bardsdale Street, Grimes Canyon Road, Broadway, Walnut Canyon Road; Moorpark Avenue and Relocated Los Angeles Avenue in Moorpark; Moorpark Freeway and Westlake Boulevard partially in Thousand Oaks, Mulholland Highway; and Decker Road in Malibu.
24 Connects Oakland (Interstates 580 and 980) and Walnut Creek (Interstate 680).
25 The primary north-south highway in San Benito County.
26 Travels from Stockton up the Sierra Nevada to Mokelumne Hill.
27 Topanga Canyon Boulevard, which runs from Route 1 at the mouth of Topanga Canyon in Southern California to Route 118 via the west side of the San Fernando Valley.
28 Runs along the north shore of Lake Tahoe from Route 89 to the Nevada border.
29 The primary Wine Country highway in Napa County.
30 Former State Route that in 1998 became the segment of Route 210 between California Route 57 in San Dimas and Interstate 210 in Redlands.
31 Former highway traversing Main Street in Corona and Hamner Avenue in and north of Norco from California Route 91 to California 60 that was superseded by Interstate 15.
32 Primary route from Chico to Lassen National Forest.
33 Runs from Ventura north across the western side of the Central Valley to near Tracy.
34 Runs from Oxnard, California to Camarillo, California; connects 1 with U.S. Route 101 and then onto 118.
35 Skyline Boulevard in San Mateo County, then known as Summit Road along the Santa Cruz-Santa Clara county border.
36 Travels west from Susanville through Red Bluff to near Eureka.
37 Connects Novato with Vallejo
38 An alternate to California 18 beginning in Redlands connecting the Inland Empire to Big Bear Lake.
39 Beach Boulevard south of Whittier Boulevard and Whittier Boulevard east of Beach Boulevard in Orange County. Azusa Avenue and San Gabriel Canyon Road north of Interstate 10 in Los Angeles County.
41 Mostly scenic highway connecting Morro Bay to Fresno and Yosemite National Park
42 A deleted route that has since been replaced by I-105 and SR-90
43 A Central Valley highway running north to south through Selma and Wasco.
44 Travels from Redding east to near vicinity of Lassen Volcanic National Park and ends west of Susanville.
45 Parallels the Sacramento River in the Sacramento Valley, running through Colusa.
46 Begins at Cambria, crosses the Santa Lucia Mountains, passes through Paso Robles, California, intersects SR-41 and ends at Famoso in the southern San Joaquin Valley. Originally part of US 466 between US 101 in Paso Robles and SR-99 at Famoso.
47 Connects San Pedro, Terminal Island, and Wilmington via the Vincent Thomas Bridge and the Commodore Schyuler Heim Bridge.
48 An unconstructed route that is to run between Route 14 near Lancaster and to-be-constructed 122near the Los Angeles County/San Bernardino County Line.
49 The Gold Country Highway in the California Gold Country.
51 Hidden designation of the eastern half Business 80 in Sacramento, California.
52 The San Clemente Canyon Freeway in San Diego.
53 Main highway through Clearlake.
54 South Bay Freeway in San Diego.
55 Newport Boulevard from Finley Avenue in Newport Beach to 19th Street in Costa Mesa and the entire length of the Costa Mesa Freeway in Orange County.
56 The Ted Williams Parkway in northern San Diego.
57 The Orange Freeway in Orange and Los Angeles counties.
58 Formerly known as 178 from U.S. Highway 101 near Santa Margarita to former U.S. Highway 99, present 99, in Bakersfield in the southern San Joaquin Valley and as U.S. Highway 466 from U.S. Highway 99 in Bakersfield to Historic U.S. Highway 66, present Interstate 15, in Barstow.
59 A north-south Central Valley highway running through Merced.
60 East/west route from Los Angeles to Beaumont; named the Pomona Freeway in Los Angeles County and part of San Bernardino County. Further east, from Interstate 215 in the Inland Empire, named the Moreno Valley Freeway
61 Main highway through Alameda.
62 Main highway through Yucca Valley, 29 Palms, and other communities of the Morongo Basin in the southern Mojave Desert. Primary route to Joshua Tree National Park.
63 A north-south Central Valley highway from Tulare to Route 180 via the city of Visalia.
64 UNCONSTRUCTED. Route 64 is defined from Route 1 near Malibu Beach to Interstate 5 south of San Fernando.
65 Designed to be a major highway along the eastern edge of the Central Valley. Currently only the northernmost section near Marysville and the southernmost section near Bakersfield have been built.
66 Also known as Foothill Boulevard in the Inland Empire, and covering a portion of old U.S. Route 66.
67 The San Vincente Freeway, connecting El Cajon to Ramona.
68 Connects Monterey and Salinas.
69 Former routing of 245.
70 Travels through Marysville and along the Feather River.
71 The Chino Valley Freeway and Corona Expressway in Southern California.
72 Partially signed route running along Whittier Blvd in Orange County west of 39 and in Los Angeles County from the Los Angeles/Orange County Line through Pico Rivera; part of El Camino Real.
73 The Corona del Mar Freeway and San Joaquin Hills Transportation Corridor' (a tollway) in Orange County.
74 The Palms to Pines Highway and Ortega Highway between Palm Desert and San Juan Capistrano
75 Starts at Interstate 5 in San Diego as the San Diego-Coronado Bridge, then becomes Orange Ave, Silver Strand Blvd, and Palm Avenue as it loops back to Interstate 5.
76 Westernmost 4 miles in Oceanside named Oceanside Police Officer Tony Zeppetella Memorial Freeway; becomes Mission Avenue afterwards.
77 A short road in Oakland.
78 Connects Oceanside to Route 10 near Blythe via Escondido, Ramona, Julian, and Brawley.
79 Connects Route 8 near Alpine to Interstate 10 in Beaumont via Cuyamaca Rancho State Park, Julian, and Temecula.
81 Unsigned and unbuilt north/south route in Riverside County and San Bernardino County.
82 El Camino Real on the San Francisco Peninsula and through downtown San Jose along a former routing of U.S. Route 101.
83 Runs from The Corona Expressway/71 to Route 66, mostly along "Euclid Avenue" through Chino, Ontario and Upland. A short portion in Upland (From north of Interstate 10 to the Expansion of 210 runs on Mountain Ave.
84 A Bay Area loop consisting of various types of State Routes from Half Moon Bay to West Sacramento, with a break between Livermore and Antioch.
85 An alternative route bypassing U.S. Route 101 through the San Jose area from Mountain View to south San Jose.
86 Connects Route 111 in Heber northward along the western shore of the Salton Sea. It rejoins Route 111 in Coachella and ends soon afterward at 111's split in Indio. Was originally part of US-99.
86S The "86S Expressway" through the eastern Coachella Valley from Interstate 10 near Coachella to 2.4 miles north of the Imperial County/Riverside County line in Valerie Jean.
87 The Guadalupe Parkway in San Jose, California.
88 Runs through Stockton, Jackson and the El Dorado National Forest.
89 Connects Mount Shasta, Lassen Volcanic National Park, Lake Tahoe, and Markleeville.
90 Known as the Marina Expressway and Marina Freeway in Los Angeles County and Imperial Highway and the Richard M. Nixon Parkway in Orange County.
91 From Vermont Avenue in Gardena, the Gardena Freeway, the Artesia Freeway, and the Riverside Freeway to the junction with Interstate 215 (California) and 60 in Riverside.
92 The J. Arthur Younger Freeway in San Mateo County and the San Mateo-Hayward Bridge.
93 Unconstructed route in the Bay Area.
94 The Martin Luther King Freeway from Interstate 5 in Downtown San Diego to the end of the freeway portion past Route 125 in Spring Valley, then via Campo Road to Interstate 8 in Manzanita.
96 Follows the Trinity and Klamath Rivers in Northern California. Goes through the town of Happy Camp.
98 A highway in Imperial County that parallels Interstate 8 between that freeway and the Mexican border.
99 The Golden State Highway in the Central Valley, much was former US-99.
100 Unconstructed route looping through downtown Santa Cruz.
102
103 Route between Route 47 north of Terminal Island in Wilmington, and 1 near the west limit of Long Beach
104 Route between Galt and Ione named Twin Cities Road.
106
107 Hawthorne Boulevard from the Route 1 (Pacific Coast Highway) to Redondo Beach Blvd at Lawndale, via Torrance.
108 Connects Modesto and Oakdale in Stanislaus County.
109 University Ave. in East Palo Alto between U.S. Route 101 and Route 84.
110 The Harbor Freeway from San Pedro to downtown Los Angeles (signed as Interstate 110, and the Pasadena Freeway from downtown Los Angeles to Pasadena (signed as 110. Entire route was formerly signed as State Route 11.
111 Main State Route through the Coachella Valley southward to the Imperial Valley and the international border with Mexico.
112
113 Connects Interstate 80 and Interstate 5 through Woodland and Davis in Yolo County.
114 Willow Road in East Palo Alto between U.S. Route 101 and Route 84.
115 An Imperial Valley highway from Holtville north to Calipatria.
116 An east-west Sonoma County highway running along the Russian River connecting Jenner and Sebastopol.
117 State Route 117 was renumbered State Route 905 in 1986.
118 Also known, in parts, as The Ronald Reagan Freeway through Ventura and Los Angeles counties.
119 Connects Route 33 near Taft to Route 99 south of Bakersfield.
120 Connects the San Francisco Bay Area to Yosemite, and as Tioga Pass Road connects Yosemite to US Highway 395 at Lee Vining. Also connects U. S. 395 south of Lee Vining to US Highway 6 at Benton. Once proposed as an extension of US-6.
121 Wine Country highway through Sears Point and Napa.
122
123 San Pablo Avenue from Oakland north to Richmond. Most of this route followed old US 40.
124 An Amador County highway.
125 Runs along the east side of greater San Diego.
126 The Santa Paula Freeway in Santa Paula and, until 2002, Magic Mountain Parkway and San Fernando Road in Santa Clarita.
127 Travels from Baker north towards the vicinity of Death Valley National Park to the Nevada state line.
128 Runs from the Mendocino Coast to the Sacramento Valley via Anderson Valley, Sonoma and Napa Counties and Lake Berryessa.
129 Connects Watsonville to U.S. Route 101 in San Benito County.
130 Mount Hamilton Road, connects San Jose to Lick Observatory and, as a paper route, to Patterson.
131 Main route from U.S. Route 101 to Tiburon. Locally known as "Tiburon Boulevard".
132 Runs east from Interstate 580 to Modesto as Maze Blvd. Continues from Modesto to Coulterville as Yosemite Blvd and the Historic Yosemite Highway. (Despite these names, the state highway designation does not extend past Coulterville.)
133 From 1 in Laguna Beach via Broadway, Laguna Canyon Road, the Laguna Freeway, and the east leg of the Eastern Transportation Corridor to 241 in Orange County.
134 The Ventura Freeway from the Hollywood Freeway, U.S. Route 101 to the south and California 170 to the north, in North Hollywood to Interstate 210 in Pasadena.
135 A scenic alternative to and west of U.S. Route 101 in Santa Barbara County between Los Alamos and Santa Maria.
136 Runs along the northern shore of the Owens Lake.
137 An east-west Tulare County highway.
138 Pearblossom Highway and Avenue D in the Antelope Valley.
139 A north-south Lassen County highway connecting 299 with Susanville.
140 The Central Yosemite Highway going west from Yosemite through Mariposa, Merced, and Gustine
141
142 Carbon Canyon Road from Chino Hills to Brea.
143
144 From U.S. Route 101 via Milpas Street, Mason Street, Salinas Street, Alameda Padre Serra, and Sycamore Canyon Road to 192 in Santa Barbara .
145 Runs from Interstate 5 in the vicinity of Coalinga to Madera.
146 Provides entry to both the western and eastern parts of Pinnacles National Monument
147 Runs along the eastern shore of Lake Almanor in Plumas County.
148
149 Connects 70 near Wicks Corner with 99 south of Chico.
150 Connects Santa Paula to Ojai and U.S. Route 101 near the Ventura/Santa Barbara County Line.
151 Runs from Shasta Dam to Interstate 5 near Project City, California.
152 Connects Los Banos to Watsonville. Partially co-signed with U.S. Route 101 through Watsonville.
153
154 The San Marcos Pass, a scenic alternative to U.S. Route 101 from Santa Barbara to north of Solvang.
155
156 Runs from Castroville to 152 near Hollister.
157
158 Runs from U. S. 395 at June Lake Junction via June Lake, the community of June Lake and Gull, Silver, and Grant lakes to a north junction with U. S. 395 five miles south of Lee Vining.
159
160 Mixed highway and freeway in Sacramento. It then runs south along the Sacramento River to the Antioch Bridge.
161
162 Runs roughly west-east from Longvale, in Mendocino County, where it intersects U.S. Route 101 to Oroville, in Butte County. It crosses 70, 99, 45, Interstate 5, & U.S. Route 101.
163 The Cabrillo Freeway for the whole length in San Diego. Former U.S. Route 395.
164 Rosemead Boulevard from Gallatin Road in Pico Rivera to Calita Street, the north limit of Temple City. Presently it is signed as part of 19
165 A north-south road from Turlock through Los Banos
166 An east-west highway from near the Interstate 5--Route 99 interchange in Kern County to Maricopa, Santa Maria, and 1 in Guadalupe.
167
168 A highway that exists in three segments: from Fresno to the northeast corner of Huntington Lake in the Sierra Nevada; from the Sabrina Basin in the Inyo National Forest to Bishop; and from Big Pine to Route 266 at Oasis near the Nevada border.
169
170 Highland Avenue in Hollywood and the northern portion of the Hollywood Freeway.
171
172
173 Connecting 138 at the northwest corner of Silverwood Lake with 18 in Sky Forest on the south side of Lake Arrowhead, it is California's only State Route with an unpaved segment.
174
175
176
177 Road that connects 62 with Interstate 10.
178 Highway that goes from Bakersfield, California through Kern River canyon and the South Fork Valley and over Walker Pass in the Sierra; then through Ridgecrest in the Indian Wells Valley to just south of Westend in San Bernardino County; also from Death Valley National Park to the California/Nevada State line at Pahrump.
179
180 Connects Kings Canyon National Park with Mendota, passing through Fresno.
181
182
183 Runs only 10 miles from Salinas to Castroville
184
185
186 Connects Interstate 8 near Winterhaven, California with the Mexican border.
187 Venice Boulevard from Lincoln Boulevard Route 1 to Route 10 via Culver City.
188 A two-mile road near Tecate in San Diego County from 94 to the Mexican border.
189 Alternative to California 18 between the Lake Arrowhead community and Strawberry Peak.
190 Travels east-west through Death Valley from Route 127 at Death Valley Junction to U.S. Highway 395 at Olancha, Inyo County. The constructed highway resumes at Quaking Aspen Camp in the Sequoia National Forest and continues westerly through Porterville to Route 99 in Tipton, Tulare County.
191
192 Parallelling and inland from U S 101 from California 154 in Santa Barbara along the Santa Barbara coast to California 150 near the Santa Barbara/Ventura County, California|Ventura]] County line.
193
194
195 Small route that connects Route 111 to Route 86 near Mecca.
196
197 Connects US Highways 199 and 101 in Del Norte County.
198 Travels east-west from Sequoia National Park to Visalia, Hanford, and Coalinga.
200
201 A route from 99 in Kingsburg, CA to 63 just south of Cutler, CA. Most of the route runs through Tulare County, CA. The western part of the route from 99 to about a quarter of a mile east of Kingsburg, CA is in Fresno County, CA.
202 California Correctional Institution near Tehachapi to 58 in Tehachapi, CA via Valley Boulevard and Tucker Road.
203 From the Madera County/Mono County line northeast of Devils Postpile National Monument via Minaret Road and Main Street in Mammoth Lakes to U S Highway 395 near Casa Diablo Hot Springs.
204
206
207 A spur route from Route 4 into Bear Valley Ski Resort in Alpine County.
208
209 A former route from the Cabrillo National Monument via Cabrillo Memorial Boulevard, Catalina Boulevard, Canon Street, Rosecrans Street, and Camino del Rio to the junction of Interstates 5 and 8 in San Diego.
210 The portion of the Foothill Freeway in San Bernardino County and eastern Los Angeles County that is currently being upgraded to an InterState Route. It was originally signed as California State Route 30, and may still have such signage in some places.
211
212
213 Western Avenue from the Palos Verdes Peninsula to Carson Street in Torrance.
214
216 A route from Visalia to Woodlake in Tulare County. An alternate route between San Luis Obispo and Arroyo Grande.
217 A freeway, slightly more than 2 miles long, Clarence C. Ward Memorial Boulevard connects the University of California, Santa Barbara with U.S. Route 101, .
218
219
220 Connects Route 84 to Route 160 across Ryer Island in Solano County.
221
222
223 Known as Bear Mountain Blvd., connects Interstate 5 with CA-58.
224 A former state route linking Carpinteria State Beach and U.S. Route 101 in Carpinteria
225 225 is a loop route through the Santa Barbara beaches, ending in downtown Santa Barbara near SBCC
226
227 An alternate route between San Luis Obispo and Arroyo Grande.
228
229 A short rural road connecting SR-58 and SR-41 in San Luis Obispo County.
230
231
232 Vineyard Avenue in Oxnard. It connects (Route 1 (Oxnard Boulevard), U.S. Route 101, and Route 118.
233
234
235
236 Loop from Route 9 to Big Basin Redwoods State Park.
237 Connects El Camino Real in Mountain View to Interstate 680 in Milpitas. It is a major corridor through Silicon Valley.
238 Mission Boulevard in Alameda County, a portion of this route is designated as Interstate 238.
239
240
241 the Foothill Corridor and Eastern Transportation Corridor (tollways) in Orange County connecting Route 91 in Santa Ana Canyon west of Corona to Rancho Santa Margarita. An extension of Route 241 is planned from Rancho Santa Margarita to the San Diego Freeway, Interstate 5, in San Clemente.
242 Connects Interstate 680 north of Pleasant Hill to 4 in Concord
243 Scenic mountain route from Banning to Idyllwild.
244
245
246 Cuts through the Santa Barbara wine country and the Danish town of Solvang.
247 Old Woman Springs Road and Barstow Road between Yucca Valley and Barstow.
248
249
250
251
252 DELETED. Planned freeway from Interstate 805 (California) at 43rd St to Interstate 5 at Interstate 15 in San Diego.
253
254 The Avenue of the Giants
255
256
257 UNCONSTRUCTED. Planned freeway from Route 34 in the vicinity of Oxnard to U.S. Route 101 in Ventura.
258
259 Connects Interstate 215 (California) and Route 30 in San Bernardino. The route was formerly signed as part of California 18.
260
261 The west leg of the Eastern Transportation Corridor (tollways) in Orange County.
262
263 Originally part of US-99.
265
266 A short highway in Mono County that begins and ends at the California/Nevada State line. It begins as a continuation of Nevada State Sign Route 266, Lida Road, and ends at the beginning of Nevada State Sign Route 264, Fish Lake Valley Road. It connects with California State Route 168 at Oasis.
267
268
269 Runs from SR-33 to SR-145 through the San Joaquin Valley.
270 Spur route from US-395 north of Mono Lake to the ghost town of Bodie, a California state park.
271
273 Originally part of US-99.
274 DELETED. Balboa Avenue in San Diego from Interstate 5 (California) to Interstate 15.
275 The Tower Bridge and the Capitol Mall (to 9th Street) in Sacramento.
276
281
282 The 3rd Street & 4th Street couplet from Route 75 to the Naval Air Station North Island in Coronado.
283 The Eel River Bridge. California's shortest state highway connecting US-101 with the south end of Rio Dell.
284
285
299 Northern California route traveling east from Arcata to Redding, Alturas, and Cedarville. Formerly, the segment between Arcata and Alturas was US-299.

Routes 330-905

State Route 330 Popular scenic route starting from Route 30 in San Bernardino to the mountain resorts of Lake Arrowhead and Big Bear Lake.
State Route 371 Scenic highway from Route 74 at Aguanga to Route 79 east of Anza.
State Route 440
State Route 480 The former Embarcadero Freeway in San Francisco.
State Route 740
State Route 905 Temporary number for a highway from Interstate 5 to the Otay Mesa Mexican Border Crossing in San Diego. Once the highway has been fully upgraded to an Interstate, it will become Interstate 905.

Interstates

Interstate 5 Goes north from the Mexican border at San Ysidro through San Diego, Los Angeles, and the Central Valley to Sacramento, Redding, and the Oregon border.
Interstate 8 Goes east from San Diego through El Centro into Arizona.
Interstate 10 Goes east from Santa Monica through Los Angeles, San Bernadino, and Blythe into Arizona.
Interstate 15 Interstate 15 begins in San Diego, then heads northeast towards Las Vegas, passing through Victorville and Barstow.
Interstate 40 Runs east from Barstow to Needles and Kingman, Arizona.
Interstate 80 Interstate 80 begins in San Francisco, then heads east through the Sierra Nevada Mountains into Nevada.
Interstate 238 Short Interstate that connects Interstate 580 to Interstate 880 in Hayward.

Auxiliary Interstates

Interstate 5
Interstate 105 East/west route which connects LAX, to the southeastern Los Angeles metro area and Interstate 605.
Interstate 205 Connects Interstate 5 with Interstate 580 via Tracy.
Interstate 305 Interstate signed as Business Loop Interstate 80 and U.S. Highway 50 between Interstate 80 in West Sacramento and the junction of Routes 50, Business 80, and 99 in Sacramento.
Interstate 405 North/south route that bypasses downtown Los Angeles by following the shoreline west of Interstate 5.
Interstate 505 Connects Interstate 5 north of Sacramento to Interstate 80 in Vacaville.
Interstate 605 Major north-south route in the eastern portion of the Los Angeles metro area.
Interstate 805 Inland north/south route that bypasses the San Diego metro area east of Interstate 5.
Interstate 10
Interstate 110 Runs from downtown Los Angeles south to San Pedro.
Interstate 210 Bypass of the Los Angeles metro area north of Interstate 10, will be fully completed in 2007.
Interstate 710 Connects Valley Boulevard in Alhambra to the part of Terminal Island in Long Beach. Planned to extend from Valley Boulevard to the junction of California 134 with Interstate 210 in Pasadena, but faces local opposition.
Interstate 15
Interstate 215 North/south loop route from Interstate 15 in Temecula through the cities of San Bernardino and Riverside to Interstate 15 near Devore.
Interstate 80
Interstate 280 A north/south route in the San Francisco Bay Area that runs to the west of U.S. Route 101 and connects San Francisco to San Jose.
Interstate 380 A short route from Interstate 280 to U.S. Route 101 in San Bruno leading into San Francisco International Airport.
Interstate 580 Connects U.S. Route 101 in San Rafael to Interstate 5 near Patterson via the Richmond-San Rafael Bridge, the east side of San Francisco Bay and Altmont Pass.
Interstate 680 Runs from San Jose to Interstate 80 in Benicia.
Interstate 780 Connects Interstate 680 to Interstate 80 in Benicia.
Interstate 880 A route from San Jose, California heading up the east Bay Area to Oakland.
Interstate 980 Short route that connects Interstate 880 to Interstate 580 and California State Route 24 in Oakland.

Business Routes

Interstate 5
Business 5 In Weed, California, Weed Boulevard carried partway by Route 265.
Interstate 80
Business 80 A unique Business Loop Interstate Highway off of Interstate 80 in Sacramento, California. Bus-80 is a state maintained freeway, and in fact formerly carried Interstate 80.

U.S. Routes

U.S. Route 6 Begins in Bishop and goes into Nevada a few miles north of Benton, California.
U.S. Route 50 Begins in Sacramento, then goes through Placerville and through the community of South Lake Tahoe on the south shore of Lake Tahoe into Nevada.
U.S. Route 95 Goes from the Arizona state line near [Blythe, California|Blythe]] to the Nevada state line near Laughlin.
U.S. Route 97 Runs north from Weed into Oregon via Dorris.
U.S. Route 101 Mostly runs in the coastal valleys and along the California coast from Los Angeles through San Francisco into Oregon.
U.S. Route 199 Connects U.S. Route 101 in Crescent City to Interstate 5 near Grants Pass, Oregon via the canyon of the Smith River.
U.S. Route 395 Begins near Hesperia, traverses the valleys and summits east of the main crest of the Sierra Nevada (US) and enters Nevada at Topaz Lake. It emerges from Nevada into Northern California northwest of Reno, passes through Alturas, and enters Oregon at New Pine Creek.

Former U.S. Routes

U.S. Route 395 looking south at Mono Lake

See also

References

  1. ^ California Streets and Highways Code, Section 231
  2. ^ Caltrans, Other State Highway Routes
  3. ^ Metadata for ST_HWY GIS data layer (PDF)
  4. ^ January 1, 2006 California Log of Bridges on State Highways (calls State Route 14U and State Route 180S, among others, spurs)
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