California State Route 143
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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 ''numbered'' or ''maintained'' by a sub-national state or province. A road numbered by a ...
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 sover ...
of
California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...
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 department of the U.S. state of California. The department is part of the cabinet-level California State Transportation Agency (CalSTA). Caltrans is headquartered in Sacrame ...
(Caltrans).


1–99

State Route 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 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 south ...
crossing east of
Otay Mesa Otay Mesa ( ) is a community in the southern section of the city of San Diego, 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 of Oc ...
. The first phase of the highway from SR 905 to Enrico Fermi Drive opened on March 19, 2016. The westernmost 9.2 miles (14.8 km) of State Route 12 are unconstructed, from SR 116 in
Sebastopol Sevastopol (; uk, Севасто́поль, Sevastópolʹ, ; gkm, Σεβαστούπολις, Sevastoúpolis, ; crh, Акъя́р, Aqyár, ), sometimes written Sebastopol, is the largest city in Crimea, and a major port on the Black Sea ...
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. 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, 10 miles (16 km) south of downtown located in the San Francisco Bay Area. It is owned by the Port of Oakland and has domestic passenger f ...
. A very short piece at the north end has also not been built, extending west into the
San Francisco Bay San Francisco Bay is a large tidal estuary in the U.S. state of California, and gives its name to the San Francisco Bay Area. It is dominated by the big cities of San Francisco, San Jose, and Oakland. San Francisco Bay drains water from a ...
to the unconstructed SR 61 freeway. A 21.8-mile (35.1 km) extension of State Route 14 from the Newhall Pass interchange with
I-5 Interstate 5 (I-5) is the main north–south 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 through the states of Californi ...
south to SR 1 northwest of
Santa Monica Santa Monica (; Spanish: ''Santa Mónica'') is a city in Los Angeles County, situated along Santa Monica Bay on California's South Coast. Santa Monica's 2020 U.S. Census population was 93,076. Santa Monica is a popular resort town, owing to ...
was once proposed as the
Reseda Freeway Reseda may refer to: In natural science * ''Reseda'' (plant), a plant genus also known as ''mignonette'' *1081 Reseda, a minor planet that orbits the Sun; named for the ''Reseda'' plant genus Places *Reseda, Los Angeles, a neighborhood in the San ...
. 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 is unconstructed from its end at SR 210 in
San Bernardino San Bernardino (; Spanish language, Spanish for Bernardino of Siena, "Saint Bernardino") is a city and county seat of San Bernardino County, California, United States. Located in the Inland Empire region of Southern California, the city had a ...
south to
I-10 Interstate 10 (I-10) is the southernmost cross-country highway in the American Interstate Highway System. I-10 is the fourth-longest Interstate in the United States at , following I-90, I-80, and I-40. This freeway is part of the originally pl ...
, a distance of 4.1 miles (6.6 km). 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 Y ...
at
Walnut Creek A walnut is the edible seed of a drupe of any tree of the genus ''Juglans'' (family Juglandaceae), particularly the Persian or English walnut, ''Juglans regia''. Although culinarily considered a "nut" and used as such, it is not a true bo ...
to SR 4 near Pittsburg 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. The eastern segment of State Route 36, stretching 17.0 miles (27.4 km) from SR 139 north of
Susanville Susanville (formerly known as Rooptown) is a town in and the county seat of Lassen County, California, United States. Susanville is located on the Susan River in the southern part of the county, at an elevation of . Its population is 16,728 a ...
east to
US 395 U.S. Route 395 (US 395) is a U.S. Route in the western United States. The southern terminus of the route is in the Mojave Desert at Interstate 15 near Hesperia. The northern terminus is at the Canada–US border near Laurier, where the road ...
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. 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 north–south United States Numbered Highway that runs through the states of California, Oregon, and Washington, on the West Coast of the United States. It is also known as (The Royal Roa ...
near
Novato Novato (Spanish for "Novatus") is a city in Marin County, California, in the North Bay region of the Bay Area. At the 2020 census, Novato had a population of 53,225. History What is now Novato was originally the site of several Coast Miwok ...
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. 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 ''La Abra'', ) 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. A related city, La Habra Heights, is located to the north of ...
north to
I-10 Interstate 10 (I-10) is the southernmost cross-country highway in the American Interstate Highway System. I-10 is the fourth-longest Interstate in the United States at , following I-90, I-80, and I-40. This freeway is part of the originally pl ...
in
Azusa Azusa may refer to: Relating to California From a Native American language, likely Tongva ''Asuksagna:'' *Azusa, California, a city in the United States *Azusa Pacific University, a Christian-based institution in Azusa, California *Azusa Street Rev ...
. 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 is constructed as a freeway from
I-110 Interstate 110 may refer to: *Interstate 110 and State Route 110 (California), Interstate 110 (California), a north–south freeway running through Los Angeles, California *Interstate 110 (Florida), a spur route in Pensacola, Florida *Interstate 1 ...
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, Hunti ...
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 cross-country highway in the American Interstate Highway System. I-10 is the fourth-longest Interstate in the United States at , following I-90, I-80, and I-40. This freeway is part of the originally pl ...
near downtown
Los Angeles Los Angeles ( ; es, Los Ángeles, link=no , ), often referred to by its initials L.A., is the largest city in the state of California and the second most populous city in the United States after New York City, as well as one of the world' ...
. State Route 48 is completely unconstructed, stretching 8.5 miles (13.7 km) from the northern junction of SR 14 and SR 138 near Lancaster 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 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 through the states of Califor ...
) 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 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) "Soulja Girl" is the second single from American rapper Soulja Boy's studio album '' ...
east through
Poway Poway () is a city in San Diego County, California, United States. The unincorporated community became a city on December 1, 1980. Poway's rural roots influenced its motto "The City in the Country". The city has a population of 49,701 as of 2 ...
to SR 67. 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 in Southern California, located southeast of Downtown Los Angeles. The city is named after American businessman Henry E. Huntington. The population was 198,711 during the 2020 census, maki ...
, is unconstructed. 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 sout ...
to SR 84 near
Newark Newark most commonly refers to: * Newark, New Jersey, city in the United States * Newark Liberty International Airport, New Jersey; a major air hub in the New York metropolitan area Newark may also refer to: Places Canada * Niagara-on-the ...
and north from SR 260 in
Alameda An alameda is a Avenue (landscape), 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 ...
to I-580 near Albany. State Route 64 is an unconstructed highway connecting SR 1 near
Malibu Beach Malibu ( ; es, Malibú; Chumashan languages, Chumash: ) is a beach city in the Santa Monica Mountains region of Los Angeles County, California, situated about west of Downtown Los Angeles. It is known for its Mediterranean climate and its ...
with
I-5 Interstate 5 (I-5) is the main north–south 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 through the states of Californi ...
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 Malibu Canyon Road, Las Virgenes Road, Bell Canyon Fire Road, Saddlebow Road, Bell Canyon Road, Valley Circle Boulevard, Roscoe Boulevard, 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. Over two-thirds of State Route 65 is a proposed route through the eastern
San Joaquin Valley The San Joaquin Valley ( ; es, Valle de San Joaquín) is the area of the Central Valley of the U.S. state of California that lies south of the Sacramento–San Joaquin River Delta and is drained by the San Joaquin River. It comprises seven c ...
, 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 in Devon, South West England. It is situated on the River Exe, approximately northeast of Plymouth and southwest of Bristol. In Roman Britain, Exeter was established as the base of Legio II Augusta under the personal comm ...
to
I-80 Interstate 80 (I-80) is an east–west transcontinental freeway that crosses the United States from downtown San Francisco, California, to Teaneck, New Jersey, in the New York metropolitan area. The highway was designated in 1956 as one o ...
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. The eastern end of State Route 74 from SR 111 in
Palm Desert Palm Desert is a city in Riverside County, California, United States, in the Coachella Valley, approximately east of Palm Springs, northeast of San Diego and east of Los Angeles. The population was 48,445 at the 2010 census. The city has been ...
north 5.5 miles (8.9 km) to
I-10 Interstate 10 (I-10) is the southernmost cross-country highway in the American Interstate Highway System. I-10 is the fourth-longest Interstate in the United States at , following I-90, I-80, and I-40. This freeway is part of the originally pl ...
was unconstructed until it was relinquished and deleted from the legislative definition in 2013. It was planned on Monterey Avenue. State Route 77 presently stretches only 0.4 miles (0.6 km) from
I-880 Interstate 880 may refer to: *Interstate 880 (California), an auxiliary Interstate Highway that travels from San Jose to Oakland, California ** Interstate 880 (California 1964–1981), a former auxiliary Interstate Highway in Sacramento, Calif ...
northeast to SR 185 in
Oakland Oakland is the largest city and the county seat of Alameda County, California, United States. A major West Coast port, Oakland is the largest city in the East Bay region of the San Francisco Bay Area, the third largest city overall in the Bay A ...
. 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 Canada * Alberta Highway 24 * British Columbia Highway 24 * M ...
near
Lafayette Lafayette or La Fayette may refer to: People * Lafayette (name), a list of people with the surname Lafayette or La Fayette or the given name Lafayette * House of La Fayette, a French noble family ** Gilbert du Motier, Marquis de Lafayette (1757 ...
. 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 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 Interstate 215 is the designation for several Interstate Highways in the United States, all of which are related to Interstate 15 (I-15): * Interstate 215 (California), a regional Interstate bypass for I-15 and a connection to I-10 that serves the ...
southeast of
Riverside Riverside may refer to: Places Australia * Riverside, Tasmania, a suburb of Launceston, Tasmania Canada * Riverside (electoral district), in the Yukon * Riverside, Calgary, a neighbourhood in Alberta * Riverside, Manitoba, a former rural m ...
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) "Soulja Girl" is the second single from American rapper Soulja Boy's studio album '' ...
south of
Devore Devore may refer to: * Devoré, a fabric technique *Devore, San Bernardino, California *Devore, Indiana People with the surname *Chuck DeVore (born 1962), American politician * Daniel Bradford Devore, (1860–1956), American brigadier general *Doro ...
. 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.http://www.dot.ca.gov/hq/tpp/corridor-mobility/D8_docs/TCRs/sr-81.pdf 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. 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 north–south United States Numbered Highway that runs through the states of California, Oregon, and Washington, on the West Coast of the United States. It is also known as (The Royal Roa ...
to SR 237 near Alviso. 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 (; Spanish language, Spanish for "Francis of Assisi, Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the List of Ca ...
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 beltway ...
, 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. 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 had a 2.2-mile (3.5 km) unconstructed segment from its current terminus at SR 238 to I-580 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. All of State Route 93 is unconstructed, on a 17.9-mile (28.8 km) route from the proposed SR 77 near
Moraga Moraga is a List of municipalities in California, town in Contra Costa County, California, Contra Costa County, California, in the San Francisco Bay Area. The town is named in honor of Joaquín Moraga, member of the famed Californio family. As ...
northwest, west, and southwest to I-580 in
Richmond Richmond most often refers to: * Richmond, Virginia, the capital of Virginia, United States * Richmond, London, a part of London * Richmond, North Yorkshire, a town in England * Richmond, British Columbia, a city in Canada * Richmond, California, ...
. 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; however, Richmond Parkway is proposed to be designated as SR 93, as callboxes are signed CC-93.


100–199

State Route 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 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 downtown San Francisco, California, to Teaneck, New Jersey, in the New York metropolitan area. The highway was designated in 1956 as one o ...
, beginning at
I-5 Interstate 5 (I-5) is the main north–south 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 through the states of Californi ...
near SR 99 north of
Sacramento ) , image_map = Sacramento County California Incorporated and Unincorporated areas Sacramento Highlighted.svg , mapsize = 250x200px , map_caption = Location within Sacramento ...
and heading east across I-80 and northeast to I-80 near
Auburn Auburn may refer to: Places Australia * Auburn, New South Wales * City of Auburn, the local government area *Electoral district of Auburn *Auburn, Queensland, a locality in the Western Downs Region *Auburn, South Australia *Auburn, Tasmania *Aub ...
. It is currently in the design process. 8.3 miles (13.4 km) of State Route 104 are unconstructed, stretching east from SR 49 near
Amador City Amador City (formerly Amadore's Creek or South Amador) is a city in Amador County, California, United States. The population was 185 as of the 2010 Census, down from 196 in 2000, making it the least populous incorporated city in California. Ama ...
to SR 88 near Pine Grove. It is Ridge Road and Climax Road, and Caltrans is planning to take it over. 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 218,464 at the 2020 census, it is the 19th largest city in the state of California and forms part of the Sacramento-Stockton- ...
southwest to
I-5 Interstate 5 (I-5) is the main north–south 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 through the states of Californi ...
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. A 10.5-mile (16.9 km) eastern segment of
State Route 118 Route 118 or Highway 118 can refer to multiple roads: Argentina * National Route 118 Canada * British Columbia Highway 118 * New Brunswick Route 118 * Nova Scotia Highway 118 * Ontario Highway 118 * Prince Edward Island Route 118 Costa ...
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 largest city in the United States. 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 Smith on ''Figure ...
. A locally maintained traversable route is I-210 and Big Tujunga Canyon Road, but Caltrans has no plans to take it over. 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 in the U.S. state of California. The city lies in the Antelope Valley region of Southern California. The San Gabriel Mountains separate Palmdale from the Los Angeles Basin to the south. On Aug ...
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. The portion of State Route 125 north of
SR 52 The following highways are numbered 52: Australia * Kings Highway (Australia) * Isis Highway ( Childers to Ban Ban Springs) - Queensland State Route 52 (Wide Bay–Burnett Region) * Gillies Highway - Queensland State Route 52 (Far North Queensla ...
in
Santee Santee may refer to: People * Santee Dakota, a subgroup of the Dakota people, of the U.S. Great Plains * Santee (South Carolina), a Native American people of South Carolina Places * Lake Santee, Indiana, a reservoir and census-designated place * ...
is unconstructed, ending at a proposed eastern extension of SR 56 near
Poway Poway () is a city in San Diego County, California, United States. The unincorporated community became a city on December 1, 1980. Poway's rural roots influenced its motto "The City in the Country". The city has a population of 49,701 as of 2 ...
. 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 Valley, Queen Elizabeth Land Canada * Davis, Saskatchewan, an unincorporated community * Davis Strait, between Nunavut and Gre ...
. 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. A section of State Route 130 is unconstructed, stretching 24.8 miles from the present end at the Stanislaus County Line east to SR 33 near
Patterson Patterson may refer to: People * Patterson (surname) Places ;Canada * Pattersons Corners, Ontario *Patterson Township, Ontario *Patterson, Calgary a neighbourhood in Calgary, Alberta. ;United States of America * Patterson, Arkansas *Patterson, C ...
. A traversable route is along San Antonio Valley Road, Del Puerto Canyon Road, and Sperry Avenue. 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 aseismi ...
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 unwanted, inappropriate, or excessive use of artificial Visible spectrum, lighting. In a descriptive sense, the term ''light pollution'' refers to the effects of any poorly implemented lighting, during the day ...
.) The freeway plan was quietly abandoned as a result in 2006. For unknown reasons, State Route 133 was erroneously listed as unconstructed until it was corrected as not being a freeway in 1999. It was still listed in the 2002 report. State Route 138 had an unconstructed section along Ridge Route Road and Elizabeth Lake Road to State Route 14; current routing east of Ridge Route Road to SR 14 was SR 48. In 1965, SR 138 was rerouted along a section of SR 48 from Ridge Route Road to 170th Street West because of constructability issues, removing one unconstructed portion. In 1996, SR 138 was rerouted along another section of SR 48 from 170th Street west to SR 14, removing the remainder of the unconstructed portion. 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. State Route 143 is a 19.7-mile (31.7 km) unconstructed highway of
Sacramento ) , image_map = Sacramento County California Incorporated and Unincorporated areas Sacramento Highlighted.svg , mapsize = 250x200px , map_caption = Location within Sacramento ...
, 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 is an unconstructed highway of
Sacramento ) , image_map = Sacramento County California Incorporated and Unincorporated areas Sacramento Highlighted.svg , mapsize = 250x200px , map_caption = Location within Sacramento ...
, stretching 16.3 miles (26.2 km) from
I-5 Interstate 5 (I-5) is the main north–south 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 through the states of Californi ...
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 never appeared to happen). In 2010, the freeway option was brought back as the Capital Southeast Connector. It is under construction. 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 157, which was proposed from
I-805 Interstate 805 (I-805) is a major north–south List of auxiliary Interstate Highways, auxiliary Interstate Highway in Southern California. It is a bypass (road), bypass auxiliary route of Interstate 5 in California, I-5, running roughly th ...
near Ocean View Boulevard in San Diego to SR 125 near the
Sweetwater Reservoir Sweetwater Reservoir is a artificial lake in San Diego County, California, formed by the Sweetwater Dam on the Sweetwater River. Construction of the dam was completed in 1888. Environment The area surrounding the reservoir is home to several ...
, was unconstructed until it was deleted in 1994. A 62.9-mile (101.2 km) portion in the middle of State Route 162, between Covelo and Elk Creek, is unconstructed. It is Mendocino Pass Road and Alder Springs Road, and Caltrans is taking it over, with signage being put up. 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) is a major north–south auxiliary Interstate Highway in the Greater Los Angeles urban area of Southern California. It runs from I-405 and State Route& ...
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. An 18.2-mile (29.3 km) portion in the middle of State Route 169 along the
Klamath River The Klamath River (Karuk: ''Ishkêesh'', Klamath: ''Koke'', Yurok: ''Hehlkeek 'We-Roy'') flows through Oregon and northern California in the United States, emptying into the Pacific Ocean. By average discharge, the Klamath is the second larges ...
is unconstructed, between
Klamath Glen Klamath Glen is an unincorporated community in Del Norte County, California. It is located on the Klamath River The Klamath River (Karuk: ''Ishkêesh'', Klamath: ''Koke'', Yurok: ''Hehlkeek 'We-Roy'') flows through Oregon and northern Cali ...
and Johnsons. This is due to the flooding. Caltrans has completed a feasibility study for this section. The section of State Route 170 that was supposed to be the
Laurel Canyon Freeway Laurel Canyon Boulevard is a major street in the city of Los Angeles. It starts off at Polk Street in Sylmar in the northern San Fernando Valley near the junction of the San Diego ( Interstate 405) and the Golden State (I-5)) freeways. Laurel Ca ...
, which would have run from the
Los Angeles International Airport Los Angeles International Airport , commonly referred to as LAX (with each letter pronounced individually), is the primary international airport serving Los Angeles, California and its surrounding metropolitan area. LAX is located in the W ...
to the
San Fernando Valley The San Fernando Valley, known locally as the Valley, is an urbanized valley in Los Angeles County, California. Located to the north of the Los Angeles Basin, it contains a large portion of the City of Los Angeles, as well as unincorporated ar ...
via the
Santa Monica Mountains The Santa Monica Mountains is a coastal mountain range in Southern California, next to the Pacific Ocean. It is part of the Transverse Ranges. Because of its proximity to densely populated regions, it is one of the most visited natural areas in ...
, was unconstructed until it was deleted from the legislative definition in 2015. A locally maintained traversable route is Laurel Canyon Boulevard, Crescent Heights Boulevard and La Cienega Boulevard, which Caltrans has no plans to take over. State Route 171, which was proposed from
I-5 Interstate 5 (I-5) is the main north–south 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 through the states of Californi ...
near San Diego to
I-805 Interstate 805 (I-805) is a major north–south List of auxiliary Interstate Highways, auxiliary Interstate Highway in Southern California. It is a bypass (road), bypass auxiliary route of Interstate 5 in California, I-5, running roughly th ...
, was unconstructed until it was deleted in 1994. 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 an American national park 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 section of Eureka ...
. 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 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 downtown San Francisco, California, to Teaneck, New Jersey, in the New York metropolitan area. The highway was designated in 1956 as one o ...
near
Vacaville Vacaville is a city located in Solano County in Northern California. Sitting approximately from Sacramento and from San Francisco, it is within the Sacramento Valley. As of the 2020 census, Vacaville had a population of 102,386, making it th ...
with SR 128 near
Lake Berryessa Lake Berryessa is the largest lake in Napa County, California. 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 has provided water ...
.
State Route 180 The following highways are numbered 180: Australia * Pyrenees Highway Canada * New Brunswick Route 180 * Prince Edward Island Route 180 * Winnipeg Route 180 Costa Rica * National Route 180 Ireland * R180 road (Ireland) Japan * Japan Na ...
is unconstructed from its present end at SR 33 in Mendota west to
I-5 Interstate 5 (I-5) is the main north–south 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 through the states of Californi ...
, 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 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 north–south United States Numbered Highway that runs through the states of California, Oregon, and Washington, on the West Coast of the United States. It is also known as (The Royal Roa ...
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 * Sa ...
. A locally maintained traversable route has been defined via Mirabel Road and River Road, but Caltrans has no plans to take it over. 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, trembling aspen, American aspen, mountain or golden aspen, tr ...
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 boundar ...
to
US 395 U.S. Route 395 (US 395) is a U.S. Route in the western United States. The southern terminus of the route is in the Mojave Desert at Interstate 15 near Hesperia. The northern terminus is at the Canada–US border near Laurier, where the road ...
at
Olancha Olancha (Timbisha: ''Pakwa' si'') is a census designated place in Inyo County of the U.S. state of California. Olancha is located on U.S. Route 395 in California, south-southeast of Independence, at an elevation of 3658 feet (1115 m). As of the ...
. 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).


200–999

State Route 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 north–south United States Numbered Highway that runs through the states of California, Oregon, and Washington, on the West Coast of the United States. It is also known as (The Royal Roa ...
near Fernbridge 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, Wilder Ridge Road, Kings Peak Road, Chemise Mountain Road, and Usal Road to SR 1 near Rockport. Until recently, State Route 213 had an unconstructed section from I-405 to Carson Street. Caltrans took over Western Avenue between these points, and signed and designated it as SR 213, making it completely constructed. 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, California with 23,196 undergraduates and 2,983 graduate students enrolled in 2021–2022. It is part of the Un ...
northwest to
US 101 U.S. Route 101, or U.S. Highway 101 (US 101), is a north–south United States Numbered Highway that runs through the states of California, Oregon, and Washington, on the West Coast of the United States. It is also known as (The Royal Roa ...
. 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 north–south United States Numbered Highway that runs through the states of California, Oregon, and Washington, on the West Coast of the United States. It is also known as (The Royal Roa ...
in
Arroyo Grande Arroyo often refers to: * Arroyo (creek), an intermittently dry creek Arroyo may also refer to: People * Arroyo (surname) Places United States ;California * Arroyo Burro Beach, a public beach park in Santa Barbara County, California * Arro ...
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 7,286 at the 2010 census, up from 7,260 at the 2000 census. Geography Oceano is located a ...
. There is no locally maintained traversable route, but there is a proposed routing. State Route 228 was a 2.5-mile unconstructed route between SR 86 2.5 miles southwest of Brawley and SR 86 west of Brawley. Its routing would roughly have been a continuation of Imperial Avenue north to near Kalin Avenue, bypassing downtown Brawley. It was deleted in 1998, but was still listed in the 2002 report. State Route 230 is a 4.1-mile (6.6 km) completely unconstructed route in southeastern
San Francisco San Francisco (; Spanish language, Spanish for "Francis of Assisi, Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the List of Ca ...
and
San Mateo County San Mateo County ( ), officially the County of San Mateo, is a county located in the U.S. state of California. As of the 2020 census, the population was 764,442. Redwood City is the county seat, and the third most populated city following Daly ...
, linking
US 101 U.S. Route 101, or U.S. Highway 101 (US 101), is a north–south United States Numbered Highway that runs through the states of California, Oregon, and Washington, on the West Coast of the United States. It is also known as (The Royal Roa ...
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 beltway ...
along the
San Francisco Bay San Francisco Bay is a large tidal estuary in the U.S. state of California, and gives its name to the San Francisco Bay Area. It is dominated by the big cities of San Francisco, San Jose, and Oakland. San Francisco Bay drains water from a ...
. 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 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 Mount Hector finishing in ...
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 Route 234 and State Route 235 are unconstructed southern and northern bypasses of Stockton, each linking
I-5 Interstate 5 (I-5) is the main north–south 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 through the states of Californi ...
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. 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 Interstate 880 may refer to: *Interstate 880 (California), an auxiliary Interstate Highway that travels from San Jose to Oakland, California ** Interstate 880 (California 1964–1981), a former auxiliary Interstate Highway in Sacramento, Calif ...
to proposed SR 61 near
San Lorenzo San Lorenzo is the Italian and Spanish name for Lawrence of Rome, Saint Lawrence, the 3rd-century Christian martyr, and may refer to: Places Argentina * San Lorenzo, Santa Fe * San Lorenzo Department, Chaco * Monte San Lorenzo, a mountain on t ...
. A locally maintained traversable route is along Lewelling Boulevard. The entire route was a proposed freeway and was sent to the Interstate Highway System in October 1968 but was rejected. Then after a series of lawsuits and appeals, the freeway plan was canceled in 2003 and Caltrans sold off the property it had acquired in the name of eminent domain along the proposed route. A bridge over I-680 in Fremont that had already been constructed to serve the route was demolished as a result. State Route 239 is a 17-mile (27.4 km) unconstructed route that would link I-580 at
I-205 Interstate 205 may refer to either of two unconnected Interstate Highways in the United States, both of which are related to Interstate 5 * Interstate 205 (California), a connector in the San Francisco Bay Area * Interstate 205 (Oregon–Washingt ...
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 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. The south end of State Route 241, from Oso Parkway south to
I-5 Interstate 5 (I-5) is the main north–south 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 through the states of Californi ...
near
San Clemente San Clemente (; Spanish for " St. Clement") is a city in Orange County, California. Located in the Orange Coast region of the South Coast of California, San Clemente's population was 64,293 in at the 2020 census. Situated roughly midway betwee ...
, is currently in the planning stages. The section from Oso Parkway to Cow Camp Road near SR 74 is currently under construction while the remainder of the extension is still under discussion. Until 1994, State Route 244 included an unconstructed extension from Auburn Boulevard east to Fair Oaks Boulevard in Sacramento County. This was transferred to SR 143. 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 largest city in the United States. 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 Smith on ''Figure ...
with SR 14 south of
Palmdale Palmdale is a city in northern Los Angeles County in the U.S. state of California. The city lies in the Antelope Valley region of Southern California. The San Gabriel Mountains separate Palmdale from the Los Angeles Basin to the south. On Aug ...
. Angeles Forest Highway ( CR N3) 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 is a completely unconstructed route, defined to extend from I-580 near
San Quentin, California San Quentin (Spanish: ''San Quintín'', meaning " St. Quentin") is a small unincorporated community in Marin County, California, United States. It is located west of Point San Quentin, at an elevation of . Description San Quentin is adjacen ...
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 loc ...
. 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 north–south United States Numbered Highway that runs through the states of California, Oregon, and Washington, on the West Coast of the United States. It is also known as (The Royal Roa ...
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 Point or points may refer to: Places * Point, Lewis, a peninsula in the Outer Hebrides, Scotland * Point, Texas, a city in Rains County, Texas, United States * Point, the NE tip and a ferry terminal of Lismore, Scotland, Lismore, Inner Hebrides, ...
, and was part of SR 17 until 1984, when SR 17 over the Richmond-San Rafael Bridge became I-580. Sir Francis Drake Boulevard 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 acros ...
, 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) consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Energy enters the syste ...
that
urbanization Urbanization (or urbanisation) refers to the population shift from 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. It is predominantly t ...
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 buil ...
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 IU ...
, 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 transform fault that extends roughly through California. It forms the tectonics, tectonic boundary between the Pacific Plate and the North American Plate, and its motion is Fault (geology)#Strike-slip fau ...
. The decision to not redevelop West Marin made the freeway unnecessary, and it was therefore scrapped. Now, this section is Sir Francis Drake Boulevard, but Caltrans has no plans to take it over. State Route 252, which was proposed from
I-5 Interstate 5 (I-5) is the main north–south 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 through the states of Californi ...
to
I-805 Interstate 805 (I-805) is a major north–south List of auxiliary Interstate Highways, auxiliary Interstate Highway in Southern California. It is a bypass (road), bypass auxiliary route of Interstate 5 in California, I-5, running roughly th ...
(going between SR 54 and SR 94), was unconstructed until it was deleted in 1994. 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, California, United States. On California's South Coast, it is the most populous city in Ventura County and the 22nd-most-populous city in California. Incorporated in 1903, Oxnard lies approximately west ...
to
US 101 U.S. Route 101, or U.S. Highway 101 (US 101), is a north–south United States Numbered Highway that runs through the states of California, Oregon, and Washington, on the West Coast of the United States. It is also known as (The Royal Roa ...
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 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 north–south United States Numbered Highway that runs through the states of California, Oregon, and Washington, on the West Coast of the United States. It is also known as (The Royal Roa ...
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. The easternmost 3.5 miles (5.6 km) of State Route 270 are unconstructed, being maintained by the
California Department of Parks and Recreation The California Department of Parks and Recreation, more commonly known as California State Parks, manages the California state parks system. The system administers 279 separate park units on 1.4 million acres (570,000 hectares), with over 280 ...
inside the Bodie State Historical Park. District 9 recommended that this stretch be deleted from the state highway system. 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 an American national park in the southern Sierra Nevada (U.S.), Sierra Nevada east of Visalia, California. The park was established on September 25, 1890, and today protects of forested mountainous terrain. Encompassing ...
. 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 vall ...
, where the
Walt Disney Company The Walt Disney Company, commonly known as Disney (), is an American multinational mass media and entertainment conglomerate headquartered at the Walt Disney Studios complex in Burbank, California. Disney was originally founded on October ...
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. State Route 280 is an unsigned surface street and an unconstructed 3.1-mile freeway extension of Interstate 280 from its current north end in San Francisco at 5th Street to
Interstate 80 Interstate 80 (I-80) is an east–west transcontinental freeway that crosses the United States from downtown San Francisco, California, to Teaneck, New Jersey, in the New York metropolitan area. The highway was designated in 1956 as one o ...
. 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 285 was an unconstructed 8 mile route along West Street and Lake Davis Road from SR 70 in Portola to Grizzly Road. It was deleted in 1998 (due to problems with right of way and drainage), but was still listed in the 2002 report. 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 in ...
, 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 beltway ...
in
San Bruno San Bruno (Spanish for " St. 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 Sa ...
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. The middle segment of State Route 480 was unconstructed from Doyle Drive to Van Ness Avenue. It was proposed as the Golden Gate Freeway in the mid 1950s but was ultimately canceled due to the
1989 Loma Prieta earthquake The 1989 Loma Prieta earthquake occurred on California's Central Coast on October 17 at local time. The shock was centered in The Forest of Nisene Marks State Park in Santa Cruz County, approximately northeast of Santa Cruz on a section of t ...
as well as local opposition. The entire route was demolished and deleted in 1991 due to local opposition, approximately 2 years after the earthquake. 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) is a major north–south auxiliary Interstate Highway in the Greater Los Angeles urban area of Southern California. It runs from I-405 and State Route& ...
from SR 22 to SR 1 near
Seal Beach Seal Beach is a coastal city in Orange County, California, United States. As of the 2020 census, the population was 25,242, up from 24,168 at the 2010 census. Seal Beach is located in the westernmost corner of Orange County. To the northwest ...
. It is roughly along Seal Beach Boulevard. The southernmost segment of
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 ...
, 3.5 miles (5.6 km) from SR 1 south and west to SR 47 on
Terminal Island Terminal Island, historically known as Isla Raza de Buena Gente, is a largely artificial island located in Los Angeles County, California, between the neighborhoods of Wilmington and San Pedro in the city of Los Angeles, and the city of Long Be ...
recently added to the legislative definition, is currently being upgraded. At the northern end, 3.5 miles (5.6 km) from
Valley Boulevard Valley Boulevard is a street in Southern California, running east from Los Angeles to Pomona, where it becomes Holt Boulevard, and a continuation from Fontana to Colton. It generally parallels Interstate 10 (I-10) and State Route 6 ...
north to California Boulevard in
Pasadena Pasadena ( ) is a city in Los Angeles County, California, 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 district. Its ...
(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, and Caltrans recently cancelled any further study of the route. The westernmost segment of State Route 905, 3.2 miles (5.1 km) from
I-5 Interstate 5 (I-5) is the main north–south 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 through the states of Californi ...
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 south ...
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

* Deleted State Routes in California


References

*
California Department of Transportation The California Department of Transportation (Caltrans) is an executive department of the U.S. state of California. The department is part of the cabinet-level California State Transportation Agency (CalSTA). Caltrans is headquartered in Sacrame ...

State Highway Routes: Selected Information
1994 with 1995 revisions *
California Department of Transportation The California Department of Transportation (Caltrans) is an executive department of the U.S. state of California. The department is part of the cabinet-level California State Transportation Agency (CalSTA). Caltrans is headquartered in Sacrame ...

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 ...
Unconstructed