SR 251 (CA)
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The following
state highway A state highway, state road, or state route (and the equivalent provincial highway, provincial road, or provincial route) is usually a road that is either Route number, numbered or maintained by a sub-national state or province. A road numbered ...
s in the
U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its so ...
of
California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
are entirely or partially unconstructed; in other words, their routings have been defined by state law, but no route has been adopted by the
California Department of Transportation The California Department of Transportation (Caltrans) is an Executive (government), executive department of the U.S. state of California. The department is part of the Government of California#State agencies, cabinet-level California State Tran ...
(Caltrans).


Entirely unconstructed

The following California state highways are entirely unconstructed. Their routings are only defined in state law. In almost all cases, Caltrans has no plans to adopt the highways by either constructing new roads along those corridors or take over the maintenance of existing routes from local jurisdictions.


State Route 48

State Route 48 is completely unconstructed, stretching 8.5 miles (13.7 km) from the northern junction of SR 14 and
SR 138 Highway 138 may refer to: Canada * Ontario Highway 138 * Prince Edward Island Route 138 * Quebec Route 138 Costa Rica * National Route 138 (Costa Rica), National Route 138 India * National Highway 138 (India) Japan * Japan National Route ...
near
Lancaster Lancaster may refer to: Lands and titles *The County Palatine of Lancaster, a synonym for Lancashire *Duchy of Lancaster, one of only two British royal duchies *Duke of Lancaster *Earl of Lancaster *House of Lancaster, a British royal dynasty ...
east to proposed SR 122. SR 48 was originally planned to run from Ridge Route Road (approximately four miles east of
Interstate 5 Interstate 5 (I-5) is the main north–south Interstate Highway System, Interstate Highway on the West Coast of the United States, running largely parallel to the Pacific coast of the contiguous U.S. from Mexico to Canada. It travels thro ...
) near Quail Lake in Los Angeles County to SR 122 near the Los Angeles / San Bernardino County Line. The segment between Ridge Route Road and SR 14 was signed as SR 138, which was defined on a southeasterly course through or paralleling Oakdale and Pine Canyons to meet SR 14 in Palmdale opposite the easterly continuation of Route 138. The planned rerouting was known as the Metropolitan Bypass Freeway. In 1965, because of constructability issues on the proposed realignment of Route 138 through or near Oakdale and Pine Canyons, the proposed junction, and thus the west end of SR 48, was moved east to 170th Street West. In 1996, the segment of SR 48 between 170th Street West and SR 14 was transferred to SR 138, leaving only the unconstructed portion. A locally maintained traversable route is East Avenue E, but Caltrans has no plans to take it over.


State Route 64

State Route 64 is an unconstructed highway connecting SR 1 near Malibu Beach with I-5 at SR 170 south of
San Fernando San Fernando may refer to: People *Ferdinand III of Castile (c. 1200–1252), called ''San Fernando'' (Spanish) or ''Saint Ferdinand'', King of Castile, León, and Galicia Places Argentina *San Fernando de la Buena Vista, city of Greater Buenos ...
. It was legislated in 1959 as Route 265, and renumbered Route 64 in 1964. It was proposed as a 30.9-mile freeway. The section from SR 1 to US 101 was deleted from the Freeway and Expressway system on November 23, 1970. The remainder was deleted from the Freeway and Expressway system on January 1, 1976. A locally maintained traversable route is Las Virgenes Road/Malibu Canyon Road, Bell Canyon Fire Road, Saddlebow Road, Bell Canyon Road, Valley Circle Boulevard,
Roscoe Boulevard Roscoe Boulevard is a major east–west arterial road that runs for across the San Fernando Valley in Los Angeles, California. Name There are two theories as to how Roscoe Boulevard got its name. The first is that it is named after a Southern ...
, and Tuxford Street, but Caltrans has no plans to take it over. The route concept report recommends deletion of the route from the highway system.


State Route 81

State Route 81 is an entirely-unconstructed 30.9-mile (49.7 km)
freeway A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway, and expressway. Other similar terms ...
from I-215 southeast of Riverside west and north around the south and west sides of Riverside to
I-15 I15 may refer to: * Interstate 15, a north–south Interstate Highway in the United States of America * Polikarpov I-15, a Soviet fighter aircraft * I15 (band), a band * , of the Imperial Japanese Navy * Älvsborg Regiment The Älvsborg Regiment ...
south of
Devore Devore may refer to: * Devoré, a fabric technique *Devore, San Bernardino, California *Devore, Indiana * Devore Peak, Washington *De Vore Aviation, developer of the Verilite Sunbird * DeVore & Sons, American Christian publishing company * Weaver & ...
. Although the legislation noted that Sierra Avenue is Route 81, it is not signed as Route 81 and doesn't appear to be formally part of the route. The route was defined in 1959 as Legislative Route 276 and renumbered to Route 81 in 1964.


State Route 93

All of State Route 93 is unconstructed, on a 17.9-mile (28.8 km) route from the proposed SR 77 near Moraga northwest, west, and southwest to I-580 in
Richmond Richmond most often refers to: * Richmond, British Columbia, a city in Canada * Richmond, California, a city in the United States * Richmond, London, a town in the London Borough of Richmond upon Thames, England * Richmond, North Yorkshire, a town ...
. It is Moraga Way, Camino Pablo, San Pablo Dam Road, and an undetermined routing from there, but Caltrans has no plans to take it over. In the 1990s, Richmond officials assembled $200 million in state and local funds to build Richmond Parkway between
Interstate 80 Interstate 80 (I-80) is an east–west transcontinental freeway that crosses the United States from San Francisco, California, to Teaneck, New Jersey, in the New York metropolitan area. The highway was designated in 1956 as one of the ori ...
and Interstate 580. While it mostly functions as an expressway, parts of Richmond Parkway do not meet state expressway standards. For this reason, Caltrans has refused to take the parkway over and officially designate it as part of SR 93 until these local officials bring it up to the state's standards.


State Route 100

State Route 100 (SR 100) is a completely unconstructed beachfront loop in Santa Cruz, stretching 4.5 miles (7.2 km) from SR 1 west of downtown to SR 1 near SR 17. It was proposed as a freeway, but in August 1975, the freeway was cancelled due to local opposition.


State Route 102

State Route 102 is a 37.5-mile (60.4 km) unconstructed
freeway A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway, and expressway. Other similar terms ...
that would generally parallel
I-80 Interstate 80 (I-80) is an east–west transcontinental freeway that crosses the United States from San Francisco, California, to Teaneck, New Jersey, in the New York metropolitan area. The highway was designated in 1956 as one of the ori ...
, beginning at I-5 near SR 99 north of
Sacramento Sacramento ( or ; ; ) is the capital city of the U.S. state of California and the seat of Sacramento County. Located at the confluence of the Sacramento and American Rivers in Northern California's Sacramento Valley, Sacramento's 2020 p ...
and heading east across I-80 and northeast to I-80 near Auburn. It is currently in the design process.


State Route 122

State Route 122 is a completely unconstructed 61.3-mile (98.7 km)
freeway A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway, and expressway. Other similar terms ...
, defined to run from SR 14 south of
Palmdale Palmdale is a city in northern Los Angeles County, California, United States. The city lies in the Antelope Valley of Southern California. The San Gabriel Mountains separate Palmdale from the Los Angeles Basin to the south. On August 24, 1962 ...
northeast and east past the east end of proposed SR 48 to SR 58 west of Barstow. A locally maintained traversable route is along Pearblossom Highway, SR 138, and 50th Street East, but Caltrans has no plans to take it over.


State Route 143

State Route 143 is a 19.7-mile (31.7 km) unconstructed highway of
Sacramento Sacramento ( or ; ; ) is the capital city of the U.S. state of California and the seat of Sacramento County. Located at the confluence of the Sacramento and American Rivers in Northern California's Sacramento Valley, Sacramento's 2020 p ...
, beginning at SR 99 near Elk Grove and ending at the east end of SR 244 near Carmichael. In 1994, it extended north, replacing a section of SR 244, to Auburn Boulevard. It was proposed as a freeway, but that was cancelled in 1975 due to opposition. The existing arterials Grant Line Road and Bradshaw Road approximating the route are currently utilized, and in 2002 Caltrans recommended removing the route definition from the state highway system (but this never appeared to happen).


State Route 148

State Route 148 is an unconstructed highway of
Sacramento Sacramento ( or ; ; ) is the capital city of the U.S. state of California and the seat of Sacramento County. Located at the confluence of the Sacramento and American Rivers in Northern California's Sacramento Valley, Sacramento's 2020 p ...
, stretching 16.3 miles (26.2 km) from I-5 east to proposed SR 65. It was proposed as a freeway, but that was cancelled in 1975 due to opposition. The City of Sacramento proposed Cosumnes River Boulevard and Calvine Road for this highway. In 2002, Caltrans recommended removing the route definition from the state highway system, but this has yet to happen. In 2010, local Sacramento agencies brought the corridor back as the
Capital SouthEast Connector The Capital SouthEast Connector is a planned expressway in California running from Interstate 5 (I-5) to U.S. Route 50 (US 50). The route runs through Sacramento County, Elk Grove, Rancho Cordova, Folsom, and El Dorado County. Th ...
. Phase I is projected to be completed by 2025, with phase II around 2030–40, but Caltrans has no plans to take it over.


State Route 179

State Route 179 is a 13.8-mile (22.2 km) routing along Cherry Glen Rd and Pleasants Valley Rd, connecting
I-80 Interstate 80 (I-80) is an east–west transcontinental freeway that crosses the United States from San Francisco, California, to Teaneck, New Jersey, in the New York metropolitan area. The highway was designated in 1956 as one of the ori ...
near
Vacaville Vacaville is a city located in Solano County, California, United States. It is located from Sacramento, California, Sacramento and from San Francisco, it is on the edge of the Sacramento Valley in Northern California. The city was founded in ...
with SR 128 near
Lake Berryessa Lake Berryessa is the largest lake in Napa County, California, United States. This reservoir in the Vaca Mountains was formed following the construction of the Monticello Dam on Putah Creek in the 1950s. Since the early 1960s, this reservoir h ...
.


State Route 181

State Route 181 is an entirely unconstructed 9.5-mile (15.3 km) route, from SR 116 near Forestville to
US 101 U.S. Route 101, or U.S. Highway 101 (US 101), is a major north–south highway that traverses the states of California, Oregon, and Washington on the West Coast of the United States. It is part of the United States Numbered Highway Syst ...
north of
Santa Rosa Santa Rosa is the Italian, Portuguese, and Spanish name for Saint Rose. Santa Rosa may also refer to: Places Argentina *Santa Rosa, Mendoza, a city * Santa Rosa, Tinogasta, Catamarca * Santa Rosa, Valle Viejo, Catamarca *Santa Rosa, La Pampa * S ...
. A locally maintained traversable route has been defined via Mirabel Road and River Road, but Caltrans has no plans to take it over.


State Route 230

State Route 230 is a 4.1-mile (6.6 km) completely unconstructed route in southeastern
San Francisco San Francisco, officially the City and County of San Francisco, is a commercial, Financial District, San Francisco, financial, and Culture of San Francisco, cultural center of Northern California. With a population of 827,526 residents as of ...
and San Mateo counties, linking
US 101 U.S. Route 101, or U.S. Highway 101 (US 101), is a major north–south highway that traverses the states of California, Oregon, and Washington on the West Coast of the United States. It is part of the United States Numbered Highway Syst ...
with
I-280 Interstate 280 may refer to multiple highways, all of which are or were related to Interstate 80: * Interstate 280 (California), a north–south freeway running from San Jose to San Francisco * Interstate 280 (Iowa–Illinois), part of the beltwa ...
along the
San Francisco Bay San Francisco Bay (Chochenyo language, Chochenyo: 'ommu) is a large tidal estuary in the United States, U.S. state of California, and gives its name to the San Francisco Bay Area. It is dominated by the cities of San Francisco, California, San ...
. Except for the southern end, the route was part of SR 87 until 1970, when SR 87 was cancelled north of SR 237. Some of the plans for a
Southern Crossing The Southern Crossing is a Tramping in New Zealand, tramping track in New Zealand's Tararua Range. The track is approximately long and typically takes two to three days to complete. It begins in Ōtaki Forks in the west, and continues over ...
across the bay would have used SR 230. It was proposed as a freeway, but the freeway option was cancelled on October 21, 1976 due to opposition.


State Routes 234 and 235

State Route 234 and State Route 235 are unconstructed southern and northern bypasses of Stockton, each linking I-5 with SR 99. Caltrans has no plans to build either, but has identified locally-maintained traversable routes: French Camp Road for the 3.4-mile (5.5 km) SR 234, and Eight Mile Road for the 6.4-mile (10.3 km) SR 235. However, one Caltrans map makes the route of SR 234 appear to be Arch-Airport Road. On November 29, 1993, San Joaquin County adopted Eight Mile Road as an arterial highway and dropped interest in it as a state highway.


State Route 239

State Route 239 is a 17-mile (27.4 km) unconstructed route that would link I-580 at I-205 west of Tracy with SR 4 near Brentwood. Caltrans has identified Mountain House Road and Byron Highway ( CR J4) as a traversable route, but has no plans to maintain it. In 2005, the federal legislation known as
SAFETEA-LU Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users or SAFETEA-LU was a funding and authorization bill that governed United States federal surface transportation spending. It was signed into law by President Geo ...
provided $14 million for the purpose of studying the route's corridor and funding its construction. The spur of the Mid-State Tollway, if built, will most likely be designated as SR 239, while the main tollway will most likely be designated as SR 84.


State Route 249

State Route 249 is a 13.5-mile (21.7 km) unconstructed route that would connect SR 2 north of
La Cañada Flintridge LA most frequently refers to Los Angeles, the second most populous city in the United States of America. La, LA, or L.A. may also refer to: Arts and entertainment Music *La (musical note), or A, the sixth note *"L.A.", a song by Elliott Smit ...
with SR 14 south of
Palmdale Palmdale is a city in northern Los Angeles County, California, United States. The city lies in the Antelope Valley of Southern California. The San Gabriel Mountains separate Palmdale from the Los Angeles Basin to the south. On August 24, 1962 ...
. Angeles Forest Highway follows the general alignment, but Caltrans has no plans to take it over. However, there are plans to explore the building of this route between Palmdale and Los Angeles tunneling through the mountains.


State Route 251

State Route 251 is a completely unconstructed route, defined to extend from I-580 near
San Quentin San Quentin Rehabilitation Center (SQ), formerly known as San Quentin State Prison, is a California Department of Corrections and Rehabilitation state prison for men, located north of San Francisco in the unincorporated place of San Quentin in ...
to SR 1 near
Point Reyes Station Point Reyes Station (formerly Marin and Olema Station) is a small unincorporated town in western Marin County, California, United States. Point Reyes Station is located south-southeast of Tomales, at an elevation of . Point Reyes Station is loca ...
. The 1.6-mile (2.6 km) portion east of
US 101 U.S. Route 101, or U.S. Highway 101 (US 101), is a major north–south highway that traverses the states of California, Oregon, and Washington on the West Coast of the United States. It is part of the United States Numbered Highway Syst ...
was defined in 1959 to be Legislative Route 251 and it kept its number. This section was proposed by Caltrans to be improved and signed as SR 251, but that never happened. Now Caltrans has no plans to take over that section. The rest was the proposed 22.9-mile (36.9 km) Point Reyes Freeway, and was part of SR 17 until 1984, when SR 17 over the Richmond-San Rafael Bridge became I-580.
Sir Francis Drake Boulevard Sir Francis Drake Boulevard is an approximately 43.8 mile east–west arterial road in Marin County, California, running from the trailhead for Point Reyes Lighthouse at the end of the Point Reyes Peninsula to Interstate 580 just west of th ...
roughly parallels the highway's length. If built, the highway was probably going to be called the "Point Reyes Freeway"; extra flyover ramps at the Sir Francis Drake Boulevard-U.S. 101 interchange suggest this. The freeway was born due to an idea to develop west
Marin County Marin County ( ) is a county located in the northwestern part of the San Francisco Bay Area of the U.S. state of California. As of the 2020 census, the population was 262,231. Its county seat and largest city is San Rafael. Marin County is ac ...
, a traditionally rural area, into a sprawling area not usually found in Marin County. With all the new residents, local roads would have been overburdened. Chief among them was Sir Francis Drake Boulevard, a two lane road from Olema to Fairfax before widening to 4 lanes as it passes through the Ross Valley. However, the development and freeway planning were stopped due to concerns about fragile
ecosystems An ecosystem (or ecological system) is a system formed by Organism, organisms in interaction with their Biophysical environment, environment. The Biotic material, biotic and abiotic components are linked together through nutrient cycles and en ...
that
urbanization Urbanization (or urbanisation in British English) is the population shift from Rural area, rural to urban areas, the corresponding decrease in the proportion of people living in rural areas, and the ways in which societies adapt to this change. ...
would have damaged or destroyed. The animals, mostly
egrets Egrets ( ) are herons, generally long-legged wading birds, that have white or buff plumage, developing fine plumes (usually milky white) during the breeding season. Egrets are not a biologically distinct group from herons and have the same build ...
and the
California red-legged frog The California red-legged frog (''Rana draytonii'') is a species of frog found in California (USA) and northern Baja California (Mexico). It was formerly considered a subspecies of the northern red-legged frog (''Rana aurora''). The frog is an I ...
, ended up being the main reason the freeway and redevelopment was defeated. There was another problem though: the plan put the entire area on the
San Andreas Fault The San Andreas Fault is a continental Fault (geology)#Strike-slip faults, right-lateral strike-slip transform fault that extends roughly through the U.S. state of California. It forms part of the tectonics, tectonic boundary between the Paci ...
. The decision to not redevelop West Marin made the freeway unnecessary, and it was therefore scrapped. Now, this section is
Sir Francis Drake Boulevard Sir Francis Drake Boulevard is an approximately 43.8 mile east–west arterial road in Marin County, California, running from the trailhead for Point Reyes Lighthouse at the end of the Point Reyes Peninsula to Interstate 580 just west of th ...
, but Caltrans has no plans to take it over.


State Route 257

State Route 257 is a proposed 19.6-mile (31.5 km) freeway from a proposed relocation of SR 34 east of
Port Hueneme Port Hueneme ( ; Chumash: ''Wene Me'') is a small beach city in Ventura County, California, surrounded by the city of Oxnard and the Santa Barbara Channel. Both the Port of Hueneme and Naval Base Ventura County lie within the city limits. Port ...
west and northwest around
Oxnard Oxnard () is a city in Ventura County in the U.S. state of California, United States. On California's Central Coast (California), Central Coast, it is the most populous city in Ventura County and the List of largest California cities by populati ...
to
US 101 U.S. Route 101, or U.S. Highway 101 (US 101), is a major north–south highway that traverses the states of California, Oregon, and Washington on the West Coast of the United States. It is part of the United States Numbered Highway Syst ...
near Ventura. 5th Street and Harbor Boulevard has been identified as a traversable routing, but Caltrans has no plans to maintain the streets. It is proposed to be upgraded to a freeway.


State Route 258

State Route 258 is an unsigned or unconstructed route which stretches 17 miles (27.4 km) along Western Avenue from the north end of SR 213 at I-405 near Torrance north to
US 101 U.S. Route 101, or U.S. Highway 101 (US 101), is a major north–south highway that traverses the states of California, Oregon, and Washington on the West Coast of the United States. It is part of the United States Numbered Highway Syst ...
near
Hollywood Hollywood usually refers to: * Hollywood, Los Angeles, a neighborhood in California * Hollywood, a metonym for the cinema of the United States Hollywood may also refer to: Places United States * Hollywood District (disambiguation) * Hollywood ...
. It is proposed to be upgraded to a freeway, but Caltrans has no plans to take it over. The route concept report recommends that the alignment of the route be moved 3.5 mi westerly, and it to be from I-405 near LAX to US 101 near Hollywood.


State Route 276

State Route 276 is an 8.5-mile (13.7 km) unconstructed route from SR 198 near Three Rivers east to
Sequoia National Park Sequoia National Park is a List of national parks of the United States, national park of the United States in the southern Sierra Nevada (U.S.), Sierra Nevada east of Visalia, California. The park was established on September 25, 1890, and toda ...
. It initially stretched further east through the park (though it was not part of the park at the time) to
Mineral King Mineral King is a subalpine glacial valley located in the southern part of Sequoia National Park, in the U.S. state of California. The valley lies at the headwaters of the East Fork of the Kaweah River, which rises at the eastern part of the val ...
, where the
Walt Disney Company The Walt Disney Company, commonly referred to as simply Disney, is an American multinational mass media and entertainment industry, entertainment conglomerate (company), conglomerate headquartered at the Walt Disney Studios (Burbank), Walt Di ...
planned to build a recreational development. It was truncated to its current terminus in 1972. A route has been adopted. A locally maintained traversable route is Mineral King Road, or county road MTN 375, but it is not recommended for Caltrans to take it over, as this road features narrow, winding, steep grades.


Partially unconstructed

The following California state highways are partially unconstructed. Caltrans has not yet adopted particularly segments of these highways that are listed in state law.


State Route 11

State Route 11 (SR 11) is a planned 3-mile (4.8 km) tolled route, running southeast from near the junction of SR 905 and SR 125 to a future Mexican border crossing east of
Otay Mesa Otay Mesa ( ) is a community in the southern exclave of San Diego, California, just north of the U.S.–Mexico border. It is bordered by the Otay River Valley and the city of Chula Vista on the north; Interstate 805 and the neighborhoods o ...
. The first phase of the highway from SR 905 to Enrico Fermi Drive opened on March 19, 2016.


State Route 12

The westernmost 9.2 miles (14.8 km) of State Route 12 are unconstructed, from SR 116 in
Sebastopol Sevastopol ( ), sometimes written Sebastopol, is the largest city in Crimea and a major port on the Black Sea. Due to its strategic location and the navigability of the city's harbours, Sevastopol has been an important Port of Sevastopol, por ...
west to SR 1. This would be today's Bodega Highway and Freestone-Valley Ford Road, but Caltrans has no plans to take them over.


State Route 13

The south end of State Route 13 is unconstructed, extending 4.5 miles (7.2 km) beyond I-580 to SR 61 near the
Oakland International Airport Oakland International Airport is an international airport in Oakland, California, United States. The airport is located south of downtown Oakland and east of San Francisco, serving the East Bay of the San Francisco Bay Area. The airport is ...
. A very short piece at the north end has also not been built, extending west into the
San Francisco Bay San Francisco Bay (Chochenyo language, Chochenyo: 'ommu) is a large tidal estuary in the United States, U.S. state of California, and gives its name to the San Francisco Bay Area. It is dominated by the cities of San Francisco, California, San ...
to the unconstructed SR 61 freeway.


State Route 14

A 21.8-mile (35.1 km) extension of State Route 14 from the
Newhall Pass interchange The Newhall Pass interchange, officially the Clarence Wayne Dean Memorial Interchange, is a highway interchange at Newhall Pass in Southern California, United States. It is south of the city of Santa Clarita and north of the Los Angeles neighbo ...
with I-5 south to SR 1 northwest of
Santa Monica Santa Monica (; Spanish language, Spanish: ''Santa Mónica'') is a city in Los Angeles County, California, Los Angeles County, situated along Santa Monica Bay on California's South Coast (California), South Coast. Santa Monica's 2020 United Sta ...
was once proposed as the Reseda Freeway. The postmiles on the existing alignment reflect the existence of this unconstructed segment, but the new exit numbers on State Route 14 suggest this segment has been abandoned. The section between US 101 and SR 118 would be Reseda Boulevard, but Caltrans has no plans to take it over.


State Route 18

State Route 18 is unconstructed from its end at SR 210 in
San Bernardino San Bernardino ( ) is a city in and the county seat of San Bernardino County, California, United States. Located in the Inland Empire region of Southern California, the city had a population of 222,101 in the 2020 census, making it the List of ...
south to
I-10 Interstate 10 (I-10) is the southernmost transcontinental highway in the Interstate Highway System of the United States. It is the fourth-longest Interstate in the country at , following I-90, I-80, and I-40. It was part of the originall ...
, a distance of 4.1 miles (6.6 km). This section would be Waterman Avenue, but Caltrans has no plans to take it over.


State Route 24

A 15.1-mile (24.3 km) eastern extension of State Route 24 from
I-680 Interstate 680 may refer to: *Interstate 680 (California), a connecting freeway between I-80 and I-280 in the San Francisco Bay Area, California *Interstate 680 (Nebraska–Iowa), a bypass in Omaha, Nebraska *Interstate 680 (Ohio), a loop through ...
at Walnut Creek to SR 4 near
Pittsburg Pittsburg may refer to: Places United States Cities, towns, townships and counties *Pittsburg, California * Pittsburg, Florida *Pittsburg, Kansas, Crawford County *Pittsburg, New Hampshire * Pittsburg, Oklahoma *Pittsburg, Texas *Pittsburg Coun ...
is unconstructed. It is today's Ygnacio Valley Road, Kirker Pass Road and Railroad Avenue. Originally, the route overlapped I-680 through Walnut Creek and split off and connect to SR 4 in Concord. The route continued along State Route 4 from the current intersection of 242 to the Antioch Bridge, continuing along the river road to Sacramento, currently State Route 160, then continuing north to Woodland, Marysville, Oroville, along the North Fork of the Feather River to a junction with State Route 89 (this segment is currently State Route 70), where it continued dual-numbered with 89 through Quincy. Highway 24 split from 89 near Graeagle, and continued east through Portola east until its terminus at U.S. Route 395. Parts of the same route were also sometimes designated as State Route 84. SR 24 was truncated to I-680 by 1987 and the segment in Concord was renumbered SR 242.


State Route 36

The eastern segment of State Route 36, stretching 17.0 miles (27.4 km) from SR 139 north of Susanville east to
US 395 U.S. Route 395 (US 395), also known as U.S. Highway 395, is a north–south United States Numbered Highway that traverses the inland areas of the western states of California, Nevada, Oregon, and Washington. It travels for over from a junctio ...
near Termo, was unconstructed until it was deleted from the legislative definition in 1998. A locally-maintained route is S. Grasshopper Road, Westside Road, and Fillman Road, but it was not built on a proper alignment for construction as a state highway, and there were no plans for a freeway or expressway. It was still listed in the 2002 report.


State Route 37

An unconstructed 11.2-mile (18.0 km) western extension of State Route 37 runs from
US 101 U.S. Route 101, or U.S. Highway 101 (US 101), is a major north–south highway that traverses the states of California, Oregon, and Washington on the West Coast of the United States. It is part of the United States Numbered Highway Syst ...
near
Novato Novato (Spanish for "Novatus") is a city in Marin County, California, United States, situated in the North Bay region of the San Francisco Bay Area. At the 2020 census, Novato had a population of 53,225. History What is now Novato was origi ...
to SR 1 near
Nicasio Nicasio ( ; Spanish for " Nicasius") is an unincorporated community and census-designated place in Marin County, California, United States. It is located west-southwest of Novato, at an elevation of . As of the 2020 census the CDP population w ...
. A locally maintained traversable route is Point Reyes-Petaluma Road and Novato Boulevard, but Caltrans has no plans to take it over.


State Route 39

11.4 miles (18.3 km) of State Route 39 are unconstructed, from Harbor Boulevard and Whittier Avenue in
La Habra La Habra – archaic spelling of – is a city in the northwestern corner of Orange County, California, United States. In the 2010 census, the city had a population of 60,239. History Origin of name The name referred to the "Pass Through ...
north to
I-10 Interstate 10 (I-10) is the southernmost transcontinental highway in the Interstate Highway System of the United States. It is the fourth-longest Interstate in the country at , following I-90, I-80, and I-40. It was part of the originall ...
in
Azusa AZUSA refers to a ground-based radar tracking system installed at Cape Canaveral, Florida and the NASA Kennedy Space Center. AZUSA was named after the southern California town Azusa, California where the system was devised in the early 1950s. ...
. However, Section 339(c) of the California Streets and Highways Code designates Harbor Boulevard and Azusa Avenue to be on the corridor between the two existing segments. As yet, the
California Transportation Commission The California Transportation Commission (CTC) is an independent government transportation commission established in 1978. The CTC replaced and assumed the responsibilities of four prior independent agencies, the California Highway Commission, ...
, as empowered in Section 75(a) of the California Streets and Highways Code, has not adopted the Harbor Boulevard-Azusa Avenue link. It is noted that an END Route 39 sign exists at the intersection of Whittier Boulevard and Harbor Boulevard. In addition, the northernmost 4.5 miles of Route 39, in the Angeles National Forest between 1.8 miles north of Crystal Lake Road and Route 2 at Islip Saddle, have been closed since a 1978 landslide.


State Route 47

State Route 47 is constructed as a freeway from I-110 in San Pedro east and north to the split with SR 103. The 1.2-mile (1.9 km) segment along Ocean Boulevard is currently being upgraded, and the 7.6-mile (12.2 km) portion along Henry Ford Avenue and
Alameda Street Alameda Street is a major north-south thoroughfare in Los Angeles County, California. It is approximately 21 miles in length, running from Harry Bridges Boulevard in Wilmington; and through Carson, Compton, Lynwood, Watts, Florence-Graham, ...
north to SR 91 has been upgraded as part of the Alameda Corridor Project, existing as a mostly below-grade surface street. Caltrans has no plans for the remainder of the legislated route, stretching 8.6 miles (13.8 km) north from SR 91 to
I-10 Interstate 10 (I-10) is the southernmost transcontinental highway in the Interstate Highway System of the United States. It is the fourth-longest Interstate in the country at , following I-90, I-80, and I-40. It was part of the originall ...
near downtown
Los Angeles Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
.


State Route 56

State Route 56 is unconstructed from
I-15 I15 may refer to: * Interstate 15, a north–south Interstate Highway in the United States of America * Polikarpov I-15, a Soviet fighter aircraft * I15 (band), a band * , of the Imperial Japanese Navy * Älvsborg Regiment The Älvsborg Regiment ...
east through
Poway Poway () is a city in San Diego County, California, United States. Poway's rural roots influenced its motto "The City in the Country". The city had a population of 48,841 as of the 2020 United States census. Poway is part of San Diego's Eas ...
to SR 67.


State Route 57

A southerly extension of State Route 57, stretching 13.0 miles (20.9 km) from SR 22 near Santa Ana south to SR 1 near
Huntington Beach Huntington Beach is a seaside city in Orange County, California, United States. The city was originally called Pacific City, but it was changed in 1903 to be named after American businessman Henry E. Huntington. The population was 198,711 as o ...
, is unconstructed.


State Route 61

A total of 24.3 miles (39.1 km) of State Route 61 are unconstructed, running south from SR 112 near
San Leandro San Leandro (Spanish for " St. Leander") is a city in Alameda County, California, United States. It is located in the East Bay of the San Francisco Bay Area; between Oakland to the northwest, and Ashland, Castro Valley, and Hayward to the south ...
to SR 84 near Newark and north from SR 260 in
Alameda An alameda is a street or path lined with trees () and may refer to: Places Canada * Alameda, Saskatchewan, town in Saskatchewan ** Grant Devine Dam, formerly ''Alameda Dam'', a dam and reservoir in southern Saskatchewan Chile * Alameda (Santi ...
to I-580 near Albany.


State Route 65

Over two-thirds of State Route 65 is a proposed route through the eastern
San Joaquin Valley The San Joaquin Valley ( ; Spanish language in California, Spanish: ''Valle de San Joaquín'') is the southern half of California's Central Valley (California), Central Valley. Famed as a major breadbasket, the San Joaquin Valley is an importa ...
, splitting the maintained route in two. This unconstructed highway stretches 215.9 miles (347.5 km) from SR 198 near
Exeter Exeter ( ) is a City status in the United Kingdom, cathedral city and the county town of Devon in South West England. It is situated on the River Exe, approximately northeast of Plymouth and southwest of Bristol. In Roman Britain, Exeter w ...
to
I-80 Interstate 80 (I-80) is an east–west transcontinental freeway that crosses the United States from San Francisco, California, to Teaneck, New Jersey, in the New York metropolitan area. The highway was designated in 1956 as one of the ori ...
in Roseville. It was signed on Sunrise Boulevard with U.S. 50 until 1976. However, with the projected growth of the Central Valley, interest has reemerged in constructing all or part of the unconstructed portion of SR 65, at least as far north as an unconstructed eastern extension of SR 152. There is also another small unconstructed segment at the north end, extending west from its terminus at SR 70 to SR 99.


State Route 74

The eastern end of State Route 74 from SR 111 in
Palm Desert Palm Desert is a city in the Coachella Valley region of Riverside County, California. The city is located in the Colorado Desert arm of the Sonoran Desert, about east of Palm Springs, northeast of San Diego and east of Los Angeles. The populat ...
north 5.5 miles (8.9 km) to
I-10 Interstate 10 (I-10) is the southernmost transcontinental highway in the Interstate Highway System of the United States. It is the fourth-longest Interstate in the country at , following I-90, I-80, and I-40. It was part of the originall ...
was unconstructed until it was relinquished and deleted from the legislative definition in 2013. It was planned on Monterey Avenue.


State Route 77

State Route 77 presently stretches only 0.4 miles (0.6 km) from I-880 northeast to SR 185 in
Oakland Oakland is a city in the East Bay region of the San Francisco Bay Area in the U.S. state of California. It is the county seat and most populous city in Alameda County, with a population of 440,646 in 2020. A major West Coast port, Oakland is ...
. A 13.4-mile (21.6 km) extension is unconstructed, running generally northeast to
SR 24 Route 24, or Highway 24, can refer to: International * European route E24 Australia * Lyell Highway (Tasmania) * Central Arnhem Road, NT Austria * Verbindungsspange Rothneusiedel Bolivia * Route 24 (Bolivia), National Route 24 (Bolivia) ...
near Lafayette. It is to follow 42nd Avenue, High Street, 35th Avenue, Redwood Road, Pinehurst Road, and Canyon Road, and to be a freeway north of SR 93/Moraga Way.


State Route 84

A 13-mile (21 km) piece in the middle of State Route 84 is unconstructed, stretching north from I-580 in Livermore to SR 4 near Brentwood. A traversable route is Vasco Road. The section between SR 4 and SR 12 is concurrent with SR 160. The Mid-State Tollway, if built, will be built from I-680 to SR 4 and will most likely be designated SR 84, and the spur will mostly likely be designated SR 239.


State Route 87

An unconstructed northern extension of State Route 87 runs from the present end at
US 101 U.S. Route 101, or U.S. Highway 101 (US 101), is a major north–south highway that traverses the states of California, Oregon, and Washington on the West Coast of the United States. It is part of the United States Numbered Highway Syst ...
to SR 237 near
Alviso Alviso is a district of San Jose, California, located in North San Jose on the southern shores of San Francisco Bay. Originally an independent town, founded in 1852, today Alviso is San Jose's only waterfront district, primarily residential in n ...
. A locally maintained traversable route is Charcot Avenue and North First Street. It once extended to Interstate 480 (which itself became SR 480 in 1968 and was cancelled in 1991) in
San Francisco San Francisco, officially the City and County of San Francisco, is a commercial, Financial District, San Francisco, financial, and Culture of San Francisco, cultural center of Northern California. With a population of 827,526 residents as of ...
as a proposed highway east of US 101. In 1968, SR 87's north end was truncated to
I-280 Interstate 280 may refer to multiple highways, all of which are or were related to Interstate 80: * Interstate 280 (California), a north–south freeway running from San Jose to San Francisco * Interstate 280 (Iowa–Illinois), part of the beltwa ...
, as the section west of I-280 was transferred to I-80; the old route of I-80 became SR 241, which was cancelled in 1972 due to environmental concerns. In 1970, the section from I-280 to SR 230 was transferred to SR 230. The section from SR 230 to SR 238 was cancelled due to environmental concerns. In 1980, the section from SR 238 to SR 237 was cancelled due to environmental concerns.


State Route 90

The central portion of State Route 90 is unsigned or unconstructed, stretching from I-405 east to SR 39. It is Slauson Avenue, Mulberry Drive, La Mirada Boulevard, and Imperial Highway. The route concept report recommends deletion of Route 90 from the state highway system from unsigned or unconstructed Route 258 to the Orange County line (and possibly renumbering one of the sections).


State Route 92

State Route 92 had a 2.2-mile (3.5 km) unconstructed segment from its current terminus at SR 238 to I-580 in
Castro Valley Castro Valley is a census-designated place (CDP) in Alameda County, California, United States. At the 2020 census, it was the fourth most populous unincorporated area in California. The population was 66,441 at the 2020 census. Castro Valley is ...
until 2015, when that segment was deleted from the legislative definition. A locally maintained traversable route is A Street and Grove Way, which Caltrans has no plans to take over.


State Route 104

8.3 miles (13.4 km) of State Route 104 are unconstructed, stretching east from SR 49 near Amador City to SR 88 near Pine Grove. It is Ridge Road and Climax Road, and Caltrans is planning to take it over.


State Route 108

A 21.5-mile (34.6 km) extension of State Route 108 is unconstructed, from its present west end at SR 132 in
Modesto Modesto ( ; ) is the county seat and largest city of Stanislaus County, California, United States. With a population of 218,069 according to 2022 U.S. Census Bureau estimates, it is the 19th-most populous city in California. Modesto is locate ...
southwest to I-5 near Crows Landing. This is Crows Landing Road and Fink Road, which the county wants Caltrans to take over, but Caltrans has no plans to do so.


State Route 118

A 10.5-mile (16.9 km) eastern segment of State Route 118 is unconstructed, running from I-210 near Sunland east to proposed SR 249 north of
La Cañada Flintridge LA most frequently refers to Los Angeles, the second most populous city in the United States of America. La, LA, or L.A. may also refer to: Arts and entertainment Music *La (musical note), or A, the sixth note *"L.A.", a song by Elliott Smit ...
. A locally maintained traversable route is I-210 and Big Tujunga Canyon Road, but Caltrans has no plans to take it over.


State Route 125

The portion of State Route 125 north of
SR 52 The following highways are numbered 52: Australia * Kings Highway (Australia) * Isis Highway (Childers, Queensland, Childers to Ban Ban Springs, Queensland, Ban Ban Springs) – Queensland State Route 52 (Wide Bay–Burnett Region) * Gillies Hig ...
in Santee is unconstructed, ending at a proposed eastern extension of SR 56 near
Poway Poway () is a city in San Diego County, California, United States. Poway's rural roots influenced its motto "The City in the Country". The city had a population of 48,841 as of the 2020 United States census. Poway is part of San Diego's Eas ...
.


State Route 128

The easternmost 10.4-mile (16.7 km) portion of State Route 128 is unconstructed, connecting I-505 near Winters (the current end) with SR 113 near
Davis Davis may refer to: Places Antarctica * Mount Davis (Antarctica) * Davis Island (Palmer Archipelago) * Davis Station, an Australian base and research outpost in the Vestfold Hills * Davis Valley, Queen Elizabeth Land Canada * Davis, Sa ...
. The 2002 Traversable Highways Report indicates that this segment will be considered for assumption of maintenance after a two-mile section of Russell Boulevard just east of I-505 is reconstructed. Yolo County will improve the roadway as funds permit. However, it is unclear if this ever happened.


State Route 130

A section of State Route 130 is unconstructed, stretching from the present end at Mount Hamilton to SR 33 near
Patterson Patterson may refer to: People * Patterson (surname) * Patterson family Places ;Australia * Patterson railway station ;Canada * Pattersons Corners, Ontario * Patterson Township, Ontario * Patterson, Calgary a neighbourhood in Calgary, Alberta. ...
. A traversable route is along San Antonio Valley Road, Del Puerto Canyon Road, and Sperry Avenue. The County of Santa Clara has posted SR 130 markers along the traversable route within its borders, despite this segment not being maintained by Caltrans. A proposed freeway path west of San Antonio Valley Road bypassing Mount Hamilton from either to the north toward State Route 237 or to the south toward San Jose's Evergreen district to I-5 was planned but feasibility of the project came into question, however, as constructing a freeway over the Diablo Range near three of its highest peaks (Mount Hamilton included) and across the
Calaveras Fault The Calaveras Fault is a major branch of the San Andreas Fault System that is located in northern California in the San Francisco Bay Area. Activity on the different segments of the fault includes moderate and large earthquakes as well as aseis ...
would have been very difficult. The project also faced stiff opposition from taxpayers, environmentalists, residents of the area looking to preserve their area's local charm, and the Lick Observatory. (A freeway through the mountains near the observatory would render it useless due to
light pollution Light pollution is the presence of any unwanted, inappropriate, or excessive artificial Visible spectrum, lighting. In a descriptive sense, the term ''light pollution'' refers to the effects of any poorly implemented lighting sources, during the ...
.) The freeway plan was quietly abandoned as a result in 2006.


State Route 142

The eastern segment of State Route 142, the 9.5-mile (15.3 km) Carbon Canyon Freeway, is unconstructed, running from SR 71 near Chino to SR 210 near
Upland Upland or Uplands may refer to: Geography *Hill, an area of higher land, generally *Highland, an area of higher land divided into low and high points *Upland and lowland, conditional descriptions of a plain based on elevation above sea level *I ...


State Route 152

A 15.1-mile (24.3 km) easterly extension of State Route 152 is unconstructed, connecting the current east end at SR 99 near
Chowchilla The chowchilla (''Orthonyx spaldingii'') is a passerine bird in the family Orthonychidae. It is endemic to Australia. Taxonomy In their 1999 study, Schodde and Mason recognise two adjoining subspecies, ''O. s. spaldingii'' and ''O. s. melas ...
with proposed SR 65.


State Route 162

A 62.9-mile (101.2 km) portion in the middle of State Route 162, between Covelo and Elk Creek, is unconstructed. The traversable route is along Mendocino Pass Road and Alder Springs Road; most of it is through
Mendocino National Forest The Mendocino National Forest is located in the California Coast Ranges#Northern Coast Ranges, Coastal Mountain Range in northwestern California and comprises . It is the only national forest in the state of California without a major paved road ...
and federally maintained by the
U.S. Forest Service The United States Forest Service (USFS) is an agency within the U.S. Department of Agriculture. It administers the nation's 154 national forests and 20 national grasslands covering of land. The major divisions of the agency are the Chief's ...
as Forest Highway 7.


State Route 164

The southernmost 1.4 mile (2.3 km) of State Route 164 is unconstructed, connecting SR 19 with
I-605 Interstate 605 (abbreviated I-605, officially known as the San Gabriel River Freeway and locally referred to as The 605) is a major north–south auxiliary Interstate Highway in the Greater Los Angeles urban area of Southern California. I ...
near
Pico Rivera Pico Rivera is a city located in southeastern Los Angeles County, California. The city is situated approximately southeast of downtown Los Angeles, on the eastern edge of the Los Angeles basin, and on the southern edge of the area known as the ...
. This section is the proposed Rio Hondo Freeway.


State Route 169

An 18.2-mile (29.3 km) portion in the middle of State Route 169 along the
Klamath River The Klamath River (Karuk language, Karuk: ''Ishkêesh'', Klamath language, Klamath: ''Koke'', Yurok language, Yurok: ''Hehlkeek 'We-Roy'') is a long river in southern Oregon and northern California. Beginning near Klamath Falls, Oregon, Klama ...
is unconstructed, between
Klamath Glen Klamath Glen is an unincorporated community in Del Norte County, California. It is located on the Klamath River from its mouth, at an elevation of 46 feet (14 m). Klamath Glen was once a resort community, but was largely destroyed in a 1953 ...
and Johnsons. This is due to the flooding. Caltrans has completed a feasibility study for this section.


State Route 178

56.0 miles (90.1 km) of State Route 178 is unconstructed, from east of Ridgecrest to
Death Valley National Park Death Valley National Park is a national park of the United States that straddles the California–Nevada border, east of the Sierra Nevada. The park boundaries include Death Valley, the northern section of Panamint Valley, the southern sect ...
. The "traversable" route is a winding dirt road through mountain passes in a desolate area. It passes through the gunnery range of the China Lake Naval Weapons Center and through the Wingate Wash area (a National Park Service designated wilderness area). The area is not suitable for a state highway, and District 9 recommends it be rerouted or deleted from the state highway system (and one of the sections possibly renumbered).


State Route 180

State Route 180 is unconstructed from its present end at SR 33 in Mendota west to I-5, and from I-5 west to SR 25 near Paicines, a total of 81.2 miles (130.7 km). This would be along Panoche Road, Little Panoche Road, Shields Avenue, Fairfax Avenue, and Belmont Avenue, but Caltrans has no plans to take it over.


State Route 190

The central portion of State Route 190 is unconstructed, stretching 43.0 miles (69.2 km) from
Quaking Aspen ''Populus tremuloides'' is a deciduous tree native to cooler areas of North America, one of several species referred to by the common name aspen. It is commonly called quaking aspen,
in the
Sequoia National Forest Sequoia National Forest is located in the southern Sierra Nevada mountains of California. The U.S. National Forest is named for the majestic Giant Sequoia (''Sequoiadendron giganteum'') trees which populate 38 distinct groves within the boun ...
to
US 395 U.S. Route 395 (US 395), also known as U.S. Highway 395, is a north–south United States Numbered Highway that traverses the inland areas of the western states of California, Nevada, Oregon, and Washington. It travels for over from a junctio ...
at Olancha. On June 25, 1982, deleting the unconstructed section was recommended, but nothing ever happened. District 9 recommends deleting the unconstructed portion (and possibly renumbering one of the sections).


State Route 211

State Route 211 (SR 211), formerly part of SR 1, stretches only 5 miles (8 km) from
US 101 U.S. Route 101, or U.S. Highway 101 (US 101), is a major north–south highway that traverses the states of California, Oregon, and Washington on the West Coast of the United States. It is part of the United States Numbered Highway Syst ...
near
Fernbridge Fernbridge is an unincorporated area, unincorporated community at an elevation of in Humboldt County, California, Humboldt County, California, named for a historic bridge, west-northwest of Fortuna, California, Fortuna. The Fernbridge (bridg ...
to Ferndale. A locally maintained traversable route, which the state does not plan to take over, continues south from Ferndale for 102.8 miles (165.4 km) along
Mattole Road Mattole Road is a county road in Humboldt County, California. It originates at Ferndale, passes through Capetown and crosses the Bear River, then reaches the Pacific coastline at Cape Mendocino and follows the beach for , passes through Pe ...
, Wilder Ridge Road, Kings Peak Road, Chemise Mountain Road, and Usal Road to SR 1 near Rockport.


State Route 217

A 5.0-mile (8.0 km) western extension of State Route 217 is unconstructed, leading from the present end at the
University of California at Santa Barbara The University of California, Santa Barbara (UC Santa Barbara or UCSB) is a public land-grant research university in Santa Barbara County, California, United States. Tracing its roots back to 1891 as an independent teachers college, UCSB joine ...
northwest to
US 101 U.S. Route 101, or U.S. Highway 101 (US 101), is a major north–south highway that traverses the states of California, Oregon, and Washington on the West Coast of the United States. It is part of the United States Numbered Highway Syst ...
.


State Route 227

The southern end of State Route 227 is unconstructed, stretching 1.7 miles (2.7 km) from
US 101 U.S. Route 101, or U.S. Highway 101 (US 101), is a major north–south highway that traverses the states of California, Oregon, and Washington on the West Coast of the United States. It is part of the United States Numbered Highway Syst ...
in Arroyo Grande to SR 1 east of
Oceano Oceano (Spanish: ''Océano'', meaning "Ocean") is a census-designated place (CDP) in San Luis Obispo County, California, United States. The population was 7,183 at the 2020 census, down from 7,286 at the 2010 census. Geography Oceano is locat ...
. There is no locally maintained traversable route, but there is a proposed routing.


State Route 238

A northern extension of State Route 238 is unconstructed, stretching west 1.6 miles (2.6 km) from the end of I-238 at I-880 to the proposed extension of SR 61 near
San Lorenzo San Lorenzo is the Italian and Spanish name for Saint Lawrence, the 3rd-century Christian martyr, and may refer to: Places Argentina * San Lorenzo, Santa Fe * San Lorenzo Department, Chaco * Villa San Lorenzo, town and municipality in Salta P ...
.


State Route 241

The construction of the south end of State Route 241, from Oso Parkway south to I-5 near
San Clemente San Clemente (; Spanish for " St. Clement" ) is a coastal city in southern Orange County, California, United States. It was named in 1925 after the Spanish colonial island (which was named after a Pope from the first century). Located in the O ...
, was opposed due to environmental concerns but the segment still remains defined under state law. Orange County maintains Los Patrones Parkway that extends the right-of-way south to
Rancho Mission Viejo Rancho Mission Viejo (Spanish: ''Rancho Misión Vieja'', meaning "Old Mission Ranch") is an active ranch and farm, habitat reserve, residential community, and census-designated place in South Orange County, California. Rancho Mission Viejo is ...
, but local officials do not intend to hand over control of the parkway to the state.


State Route 270

The easternmost 3.5 miles (5.6 km) of State Route 270 are unconstructed, being maintained by the
California Department of Parks and Recreation California State Parks is the state park system for the U.S. state of California. The system is administered by the California Department of Parks and Recreation, a department under the California Natural Resources Agency. The California State ...
inside the Bodie State Historical Park. District 9 recommended that this stretch be deleted from the state highway system.


State Route 280

State Route 280 is an unconstructed extension of Interstate 280 from its current north end in San Francisco at King and 5th Streets to
Interstate 80 Interstate 80 (I-80) is an east–west transcontinental freeway that crosses the United States from San Francisco, California, to Teaneck, New Jersey, in the New York metropolitan area. The highway was designated in 1956 as one of the ori ...
. The traversable route along 5th Street is maintained by the city and Caltrans has no plans to take it over. The legal definition however still reads "to Route 80 near First Street", which dates back to plans for I-280 to also connect to the now-demolished Embarcadero Freeway (now-deleted State Route 480) near 1st Street.


State Route 281

The majority of State Route 281 is unconstructed, stretching 14.0 miles (22.5 km) from the current end at Clear Lake northwest to SR 29 south of Lakeport. A locally-maintained traversable route is Soda Bay Road, and Caltrans is planning to take it over.


State Route 380

State Route 380, a 4.4-mile (7.1 km) western extension of
I-380 Interstate 380 may refer to: * Interstate 380 (California), a spur from Interstate 280 to U.S. Route 101 and the San Francisco International Airport * Interstate 380 (Iowa), a spur from Interstate 80 that starts in Iowa City and eventually ends ...
, was to connect the end of I-380 at
I-280 Interstate 280 may refer to multiple highways, all of which are or were related to Interstate 80: * Interstate 280 (California), a north–south freeway running from San Jose to San Francisco * Interstate 280 (Iowa–Illinois), part of the beltwa ...
in
San Bruno San Bruno () is a city in San Mateo County, California, United States, incorporated in 1914. The population was 43,908 at the 2020 United States census. The city is between South San Francisco and Millbrae, adjacent to San Francisco Internat ...
with SR 1 near Pacifica. The freeway was cancelled on March 29, 1979. A locally maintained traversable route is along Sneath Lane, Skyline Blvd and Sharp Park Road, but Caltrans has no plans to take it over.


State Route 605

State Route 605 is a 3-mile (4.8 km) unconstructed southern extension of
I-605 Interstate 605 (abbreviated I-605, officially known as the San Gabriel River Freeway and locally referred to as The 605) is a major north–south auxiliary Interstate Highway in the Greater Los Angeles urban area of Southern California. I ...
from I-405/ SR 22 to SR 1 near Seal Beach. It is roughly along Seal Beach Boulevard but Caltrans has no plans to take it over.


State Route 710

The 3.5-mile (5.6 km) segment of State Route 710 from
Interstate 710 Route 710, consisting of the non-contiguous segments of State Route 710 (SR 710) and Interstate 710 (I-710), is a major north–south state highway and auxiliary Interstate Highway in the Los Angeles metropolitan area of the ...
and
Valley Boulevard Valley Boulevard is a street in Southern California, running east from Los Angeles to Pomona, where it becomes Holt Avenue, and a continuation from Fontana to Colton. It generally parallels Interstate 10 (I-10) and State Route 60 ...
north to California Boulevard in
Pasadena Pasadena ( ) is a city in Los Angeles County, California, United States, northeast of downtown Los Angeles. It is the most populous city and the primary cultural center of the San Gabriel Valley. Old Pasadena is the city's original commercial d ...
(where a freeway stub leading to an interchange with I-210 and SR 134 already exists) has been unconstructed for several decades due to community opposition.


State Route 905

The westernmost segment of the Otay Mesa Freeway, 3.2 miles (5.1 km) from I-5 southwest to the
Mexican border Mexico shares international borders with three nations: *To the north the United States–Mexico border, which extends for a length of through the states of Baja California, Sonora, Chihuahua, Coahuila, Nuevo León and Tamaulipas. *To the sou ...
is unconstructed, and Caltrans has no plans on pursuing this routing, particularly since there are no plans for a border crossing at this location, and it is an environmentally sensitive area.


See also

* List of deleted state highways in California


References

*
California Department of Transportation The California Department of Transportation (Caltrans) is an Executive (government), executive department of the U.S. state of California. The department is part of the Government of California#State agencies, cabinet-level California State Tran ...

State Highway Routes: Selected Information
1994 with 1995 revisions *
California Department of Transportation The California Department of Transportation (Caltrans) is an Executive (government), executive department of the U.S. state of California. The department is part of the Government of California#State agencies, cabinet-level California State Tran ...

Traversible Highways Report 2002
ic {{reflist, 30em


External links


2003 Caltrans District 7 Master System Plan Status Map
High High may refer to: Science and technology * Height * High (atmospheric), a high-pressure area * High (computability), a quality of a Turing degree, in computability theory * High (tectonics), in geology an area where relative tectonic uplift t ...
Unconstructed