California State Route 58

State Route 58
SR 58 highlighted in red
Route information
Maintained by Caltrans
Length	241 mi[1] (388 km)
Existed	1964–present
Major junctions
West end	US 101 in Santa Margarita
Major intersections	SR 33 at McKittrick I-5 near Buttonwillow SR 43 near Bakersfield SR 99 in Bakersfield SR 14 near Mojave US 395 at Kramer Junction
East end	I-15 in Barstow
Location
Country	United States
State	California
Counties	San Luis Obispo, Kern, San Bernardino
Highway system
State highways in California Interstate US State Scenic History Pre‑1964 Unconstructed Deleted Freeways
← SR 57 → SR 59

State Route 58 (SR 58) is a major east-west state highway in the U.S. state of California that runs across the Coast Ranges, the southern San Joaquin Valley, the Tehachapi Mountains, which border the southern Sierra Nevada, and the Mojave Desert. It runs between U.S. Route 101 near Santa Margarita and Interstate 15 in Barstow. It has junctions with Interstate 5 near Buttonwillow, State Route 99 in Bakersfield, State Route 202 in Tehachapi, State Route 14 near Mojave, and U.S. Route 395 at Kramer Junction. SR 58 also provides access to Edwards Air Force Base. At various points it is known as the Calf Canyon Highway, Carrisa Highway, Bakersfield-McKittrick Highway, Rosa Parks Highway, Westside Parkway, Barstow-Bakersfield Highway, Bakersfield Tehachapi Highway, Kern County Korean War Veterans Memorial Highway, and Mojave-Barstow Highway.

State Route 58 between Santa Margarita and Buttonwillow is a winding mountain road through a thinly populated area. From its westernmost terminus at US 101 near Santa Margarita, a few miles north of San Luis Obispo, SR 58 heads east along the former US 101 (El Camino Real) for one mile. SR 58 then heads east and up the winding mountain road, passing through a thinly populated area and an intersection with SR 229. Alternatives such as SR 46 to the north or SR 166 to the south are recommended, as much of this section of SR 58 is prohibited to truck traffic. However, this section of SR 58 does pass through the Carrizo Plain, which is known for its scenic beauty and geological features, including the San Andreas Fault. SR 58 then takes another winding road before joining with State Route 33 in the small town of McKittrick. SR 33 then splits at the north end of McKittrick before SR 58 then enters another, but brief winding road. SR 58 then proceeds northeast for several miles before changing to an east-west alignment and reaching Buttonwillow. SR 58 then joins with the north-south Interstate 5 (I-5) for a few miles to Stockdale Highway, where it resumes heading east and intersects with State Route 43 before reaching Bakersfield. In Bakersfield, the route follows the Westside Parkway to reach State Route 99 at the West Bakersfield Interchange.

East of SR 99, SR 58 briefly enters expressway status with two at-grade intersections in the Caliente area before resuming freeway status east of Caliente. SR 58 then reaches the Tehachapi city limits and traverses the Tehachapi Pass before dropping out of the Tehachapi Mountains into the Antelope Valley at the town of Mojave. Freeway conditions continue from State Route 14 east of Mojave bypassing North Edwards, Edwards Air Force Base, Boron, and Kramer Junction. Approximately 10 miles (16 km) east of an interchange with U.S. Route 395, SR 58 resumes expressway status with two lanes in each direction until just before reaching the easternmost terminus at Interstate 15 in Barstow.

With the lack of four-lane or greater, divided highways that cross the Sierra Nevada between SR 58 at the Tehachapi Pass and Interstate 80 at Donner Summit about hundreds of miles to the north, I-5 and SR 58 are used by motorists to travel between Northern California and points to the southeast, such as Las Vegas (via I-15) and Interstate 40, without having to face the extreme traffic congestion of greater Los Angeles.

SR 58 is part of the California Freeway and Expressway System,^[2] and east of I-5 is part of the National Highway System,^[3] a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.^[4] SR 58 is eligible for the State Scenic Highway System,^[5] but it is not officially designated as a scenic highway by the California Department of Transportation.^[6] SR 58 has several names throughout its length, including the Blue Star Memorial Highway (for its entire length); the Kern County Korean War Veterans Memorial Highway, for the section from SR 184 to the Kern County/San Bernardino County Line; and the Rosa Parks Highway, for the section between SR 99 and SR 184. The Korean War Veterans name honors the approximately 8,120 veterans from Kern County, while the section named for Rosa Parks honors the civil rights activist.^[7] The portion of SR 58 from Barstow to Bakersfield is sometimes referred to as the Barstow–Bakersfield Highway.^[8]

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State Route 58 did not exist as a California sign route until 1964, although previous to 1964, it was part of California Legislative Route 58. The other part of Legislative Route 58 is California's segment of Interstate 40; previous to 1964 it was a segment of US 66.

Prior to 1964, the segment of State Route 58 between Bakersfield and Barstow was signed U.S. Route 466. Also at that time, the segment of SR 58 between State Route 33 at McKittrick and State Route 99 in Bakersfield was signed as State Route 178. Although it was proposed for signing as Route 178 in 1934, the segment of Legislative Route 58 between US 101 near Santa Margarita and State Route 33 at McKittrick was not signed prior to 1964.

Note that US 466 was co-signed with US 99, now State Route 99, between Bakersfield and Famoso Junction. Between Famoso and US 101 at Paso Robles, US 466 largely became SR 46.

The eastern terminus was originally at I-15 in northeastern Barstow. SR 58 was rerouted to I-15 in Barstow south of the I-40 interchange in c. 2000.^{[citation needed]} The former eastern terminus is now known as "Old Highway 58".

Freeway bypasses in Tehachapi, Boron, Mojave, Hinkley, and Kramer Junction were completed in c. 1975, 1981, 2003, 2017, and 2020, respectively.^{[citation needed]}

In western Bakersfield, the Westside Parkway, a freeway running from Stockdale Highway (near Heath Road) east to Truxtun Avenue, was completed on April 15, 2015, with interchanges in between at Allen Road, Calloway Drive, Coffee Road, and Mohawk Street.^[9] Opening in stages since 2013, the road was originally under the jurisdiction of the city of Bakersfield. As part of the Centennial Corridor project, Caltrans built an extension of the Westside Parkway east to the junction of SR 58 and SR 99 at the West Bakersfield Interchange. Although construction was controversial since it displaced dozens of homes and businesses,^[10] by September 2017, all but a few buildings in the path had been demolished.^[11]

On February 5, 2021, the city transferred the Westside Parkway to Caltrans and California Highway Patrol jurisdiction.^[12] City officials then announced in October 2022 that the project was nearly complete, and that they were working on the last 800 feet of the connection, specifically, the northbound SR 99 to westbound SR 58 transition ramp, with an estimated 8 months of construction left.^[13] Meanwhile, Caltrans began installing signage rerouting SR 58 traffic from I-5 onto Stockdale Highway and the Westside Parkway east to at least Mohawk Street.^[14][15][16]

The Centennial Corridor was inaugurated on February 9, 2024, with a ceremonial bicycle ride,^[17] and officially opened to traffic on February 17, 2024,^[18] with some connections between SR 58 and SR 99 remaining closed.^[19] The rest of SR 58 on Rosedale Highway between Mohawk Street and SR 99 is planned to be transferred to city control.^[20][21] Future plans are to upgrade Stockdale Highway from I-5 to Heath Road as a freeway.^[22]

Except where prefixed with a letter, postmiles were measured on the road as it was in 1964, based on the alignment that existed at the time, and do not necessarily reflect current mileage. R reflects a realignment in the route since then, M indicates a second realignment, L refers to an overlap due to a correction or change, and T indicates postmiles classified as temporary (for a full list of prefixes, see California postmile § Official postmile definitions).^[23] Segments that remain unconstructed or have been relinquished to local control may be omitted. The numbers reset at county lines; the start and end postmiles in each county are given in the county column.

Exits on the Westside Parkway segment are currently unnumbered.

County	Location	Postmile [23][1][24][25]	Exit [26][27]	Destinations	Notes
San Luis Obispo SLO 0.00-57.15	​	0.00		US 101 – San Francisco, San Luis Obispo, Los Angeles	Interchange; western terminus; US 101 exit 211
	​	6.89		SR 229 north – Creston, Shandon	Southern terminus of SR 229
	​	45.20		Soda Lake Road – California Valley, Soda Lake	Serves Carrizo Plain National Monument
Kern KER 0.00-R143.86	McKittrick	15.41 33.45[N 1]		SR 33 south – Taft	West end of SR 33 overlap
		34.29[N 1] 15.42		SR 33 north – Coalinga	East end of SR 33 overlap
	Buttonwillow	27.28		Buttonwillow Drive to I-5 north
		31.64 52.15[N 2]		I-5 north (West Side Freeway) / Hageman Road – Sacramento	Interchange; west end of I-5 overlap; I-5 south exit 257; Hageman Road is former SR 58 east
			West end of freeway on I-5
	​	47.55[N 2] R34.52	East end of freeway on I-5
				I-5 south (West Side Freeway) / Stockdale Highway west – Los Angeles	Interchange; east end of I-5 overlap; I-5 north exit 253
	Rosedale	R39.25		SR 43 (Enos Lane) to I-5 south – Shafter	Roundabout
		R43.59		Stockdale Highway east	At-grade intersection; serves California State University, Bakersfield
			West end of freeway and Westside Parkway
	Bakersfield	R45.38	—	Allen Road
		R47.05	—	Calloway Drive	Signed as separate north and south exits westbound
		R48.54	—	Coffee Road
		​	—	Mohawk Street
		R50.56	—	Truxtun Avenue east	Eastbound exit and westbound entrance
		T52.14– R52.36	—	Real Road	Closed; former westbound exit and eastbound entrance; demolished during the Westside Parkway extension construction
		T52.14– R52.36	110A	SR 99 south – Los Angeles	West Bakersfield Interchange; signed as exit 110 eastbound; east end of Westside Parkway; eastbound exit provides access to Ming Avenue as exit 23 of SR 99; SR 99 exit 24
		T52.14– R52.36	110B	SR 99 north – Fresno, Sacramento	West Bakersfield Interchange; westbound exit and eastbound entrance; SR 99 exit 24; former SR 58 west (as a former overlap)
		R53.39– R53.52	111	Chester Avenue, H Street
		R54.42	112	SR 204 north (Union Avenue)	Former US 99; southern terminus of SR 204
		R55.40	113	Martin Luther King Jr. Boulevard	Formerly Cottonwood Road[28]
		R56.41	114	Mount Vernon Avenue
		R57.41	115	Oswell Street
	Fairfax	R58.44	116	Fairfax Road
	​	R59.44	117	SR 184 (Weedpatch Highway, Morning Drive) – Lamont	Weedpatch Highway not signed westbound, Morning Drive not signed eastbound
	Edison	R61.51	119	Edison Road – Edison
	​	R63.58	121	Comanche Drive – Arvin, Edison
	​	R65.68	123	Tower Line Road
	​	69.75	127	General Beale Road
	​	75.59	East end of freeway
	​	75.63		SR 223 west – Arvin	At-grade intersection; eastern terminus of SR 223
	​	77.04		Bealeville Road, Bena Road	At-grade intersection; eastern terminus of Bena Road
	​	77.26	West end of freeway
	Keene	80.24	137	Hart Flat Road
		82.06	139	Keene (Woodford-Tehachapi Road)
		R85.15	142	Broome Road
	Tehachapi	R90.72	148	SR 202 west (Tucker Road, SR 58 Bus. east) – Tehachapi	Eastern terminus of SR 202
		R91.67	149	Mill Street
		R94.15[29]	Tehachapi Summit, elevation 4,064 feet (1,239 m)[29]
		R94.16	151	Tehachapi Boulevard (SR 58 Bus. west)	Former US 466
	​	R99.49	156	Sand Canyon Road – Monolith
	​	R101.56	159	Cameron Road	Pacific Crest Trail crossing
	​	R108.90	165	SR 58 Bus. east – Mojave	Former US 466 east / SR 58 east
	​	R111.13	167	SR 14 – Bishop, Mojave	Former US 6
	​	R116.22	172	SR 58 Bus. west – Mojave	Former US 466 west / SR 58 west
	​	R117.93		25th Street	At-grade intersection; east end of freeway
	​	R127.63		California City Boulevard – California City	At-grade intersection; west end of freeway
	​	R129.67	186	Edwards AFB (Rosamond Boulevard north gate)
	North Edwards	R132.04	188	Clay Mine Road
	​	R136.40	193	Twenty Mule Team Road	Former US 466 east
	​	R137.77	194	Gephart Road, Rocket Site Road
	​	R139.00	Boron Rest Area
	Boron	R139.80	196	Borax Road (SR 58 Bus. east), Rocket Site Road
		R142.87	199	Boron Avenue
San Bernardino SBD R0.00-R34.81	Kramer Junction	R5.40	206	US 395 (SR 58 Bus. west) – Bishop, San Bernardino
	​	​	East end of freeway
	​	​	West end of freeway
	Hinkley	R26.33	227	Hinkley Road
	​	R30.39	231	Lenwood Road
	Barstow	R33.65	233	CR 66 (West Main Street) – Barstow	Former US 66 / US 91
		R34.81	234	I-15 (Mojave Freeway) to I-40 – Las Vegas, San Bernardino	Eastern terminus; exit 234 is for I-15 southbound; I-15 exit 179
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Incomplete access

State Route 58 Business
Location	Tehachapi, California

State Route 58 Business (SR 58 Bus.) is a business route of California State Route 58 in Tehachapi. It provides access to downtown Tehachapi as Tehachapi Boulevard. It also follows the former routing of U.S. Route 466 and is overlapped with State Route 202.

Major intersections

The entire route is in Kern County.

Location	mi	km	Destinations	Notes
​	0.0	0.0	SR 58 – Bakersfield, Barstow	Interchange; western terminus; west end of SR 202 overlap; eastern terminus of SR 202; SR 58 exit 148
Module:Jctint/USA warning: Unused argument(s): state
Tehachapi	0.8	1.3	SR 202 west (Tucker Road) / Red Apple Avenue	East end of SR 202 overlap; serves California Correctional Institution
	1.8	2.9	South Curry Street	Former US 466 west / SR 202 west
	4.1	6.6	SR 58 – Mojave, Bakersfield	Interchange; eastern terminus; SR 58 exit 151
	4.1	6.6	Tehachapi Boulevard – Monolith	Continuation beyond SR 58; former US 466 east
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

State Route 58 Business
Location	Mojave, California

State Route 58 Business (SR 58 Bus.) is a business route of California State Route 58 in Mojave. It provides access to downtown Mojave as Mojave-Barstow Highway. It also follows mostly the former routing of U.S. Route 466.

Major intersections

The entire route is in Kern County.

Location	mi	km	Destinations	Notes
​	0.0	0.0	California City Boulevard	Continuation beyond SR 58; connects to SR 14
Module:Jctint/USA warning: Unused argument(s): state
​	0.0	0.0	SR 58 – Bakersfield, Barstow	Interchange; western terminus; SR 58 exit 165; former US 466 west
Mojave	3.6	5.8	SR 14 north – Bishop, Reno	West end of SR 14 overlap; former US 6 north
	4.9	7.9	SR 14 south – Los Angeles	East end of SR 14 overlap; former US 6 south
​	8.9	14.3	SR 58 – Barstow, Bakersfield	Interchange; eastern terminus; SR 58 exit 172; former US 466 east
​	8.9	14.3	Altus Avenue	Continuation beyond SR 58
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

State Route 58 Business
Location	Boron, California

State Route 58 Business (SR 58 Bus.) is a business route of California State Route 58 in Boron. It provides access to downtown Boron as Twenty Mule Team Road. It also follows the former routing of U.S. Route 466. It is signed from SR 58 at Borax Road to the old SR 58 split near the San Bernardino–Kern county line (where the old SR 58 now dead ends). From here to US 395, following the old alignment of SR 58 (and US 466), the business route is unsigned.

Major intersections

County	Location	mi	km	Destinations	Notes
Kern	Boron	0.0	0.0	Borax Road	Continuation beyond SR 58
		Module:Jctint/USA warning: Unused argument(s): state
		0.0	0.0	SR 58 – Bakersfield, Barstow	Interchange; western terminus; SR 58 exit 196
		0.5	0.80	Twenty Mule Team Road west	Connects to Rocket Site Road; former US 466 west
3.5	5.6	Boron Avenue
San Bernardino	​	5.8	9.3	Old Highway 58	Former eastern terminus; former SR 58 west; dead end
	Kramer Junction	9.7	15.6	US 395 south / Twenty Mule Team Road east – San Bernardino	West end of US 395 overlap; Twenty Mule Team Road is former US 466 east / SR 58 east and dead ends 2.5 miles (4.0 km) away
		10.1	16.3	SR 58 – Barstow, Bakersfield	Interchange; eastern terminus; east end of US 395 overlap; SR 58 exit 206
		10.1	16.3	US 395 north – Bishop	Continuation beyond SR 58
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

• California Roads portal

Wikimedia Commons has media related to California State Route 58.

• Caltrans: State Route 58 highway conditions
• Caltrans Traffic Conditions Map
• California Highway Patrol Traffic Incidents
• California Highways State Route 58
• California @ AARoads.com - State Route 58