# California State Route 58

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.

## Route description

The California Streets and Highways Code defines Route 58 in section 358, subdivision (a). The latest amendment, effective January 1, 2015, defines the route as follows:
   Route 58 is from: (1) Route 101 near Santa Margarita to Route 33. (2) Route 33 to Route 43. (3) Route 43 to just west of Van Buren Place near Bakersfield. (4) Mohawk Street near Bakersfield to Route 99. (5) Route 99 to Route 15 near Barstow via Bakersfield and Mojave.
Due to ongoing freeway construction projects in Bakersfield and unincorporated Kern and San Bernardino counties, the definition has yet to be amended by the legislature and may not accurately reflect current or former rights of way maintained by Caltrans.
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, and east of I-5 is part of the National Highway System, a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration. SR 58 is eligible for the State Scenic Highway System, but it is not officially designated as a scenic highway by the California Department of Transportation. 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. The portion of SR 58 from Barstow to Bakersfield is sometimes referred to as the Barstow–Bakersfield Highway.

## History

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. 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.

### Westside Parkway and the Centennial Corridor Project

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. 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, by September 2017, all but a few buildings in the path had been demolished.
On February 5, 2021, the city transferred the Westside Parkway to Caltrans and California Highway Patrol jurisdiction. 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. 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.
The Centennial Corridor was inaugurated on February 9, 2024, with a ceremonial bicycle ride, and officially opened to traffic on February 17, 2024, with some connections between SR 58 and SR 99 remaining closed. The rest of SR 58 on Rosedale Highway between Mohawk Street and SR 99 is planned to be transferred to city control. Future plans are to upgrade Stockdale Highway from I-5 to Heath Road as a freeway.

## Major intersections

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). 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 | Exit | 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 |
| San Luis Obispo SLO 0.00-57.15 | ​ | 6.89 | | SR 229 north – Creston, Shandon | Southern terminus of SR 229 |
| San Luis Obispo SLO 0.00-57.15 | ​ | 45.20 | | Soda Lake Road – California Valley, Soda Lake | Serves Carrizo Plain National Monument |
| Kern KER 0.00-R143.86 | McKittrick | 15.4133.45 | | SR 33 south – Taft | West end of SR 33 overlap |
| Kern KER 0.00-R143.86 | McKittrick | 34.2915.42 | | SR 33 north – Coalinga | East end of SR 33 overlap |
| Kern KER 0.00-R143.86 | Buttonwillow | 27.28 | | Buttonwillow Drive to I-5 north | |
| Kern KER 0.00-R143.86 | Buttonwillow | 31.6452.15 | | 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 |||
| Kern KER 0.00-R143.86 | ​ | 47.55R34.52 | East end of freeway on I-5 | East end of freeway on I-5 | East end of freeway on I-5 |
| Kern KER 0.00-R143.86 | ​ | 47.55R34.52 | | I-5 south (West Side Freeway) / Stockdale Highway west – Los Angeles | Interchange; east end of I-5 overlap; I-5 north exit 253 |
| Kern KER 0.00-R143.86 | Rosedale | R39.25 | | SR 43 (Enos Lane) to I-5 south – Shafter | Roundabout |
| Kern KER 0.00-R143.86 | Rosedale | R43.59 | | Stockdale Highway east | At-grade intersection; serves California State University, Bakersfield |
| West end of freeway and Westside Parkway |||
| Kern KER 0.00-R143.86 | Bakersfield | R45.38 | — | Allen Road | |
| Kern KER 0.00-R143.86 | Bakersfield | R47.05 | — | Calloway Drive | Signed as separate north and south exits westbound |
| Kern KER 0.00-R143.86 | Bakersfield | R48.54 | — | Coffee Road | |
| Kern KER 0.00-R143.86 | Bakersfield | ​ | — | Mohawk Street | |
| Kern KER 0.00-R143.86 | Bakersfield | R50.56 | — | Truxtun Avenue east | Eastbound exit and westbound entrance |
| Kern KER 0.00-R143.86 | Bakersfield | T52.14– R52.36 | — | Real Road | Closed; former westbound exit and eastbound entrance; demolished during the Westside Parkway extension construction |
| Kern KER 0.00-R143.86 | Bakersfield | 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 |
| Kern KER 0.00-R143.86 | Bakersfield | 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) |
| Kern KER 0.00-R143.86 | Bakersfield | R53.39– R53.52 | 111 | Chester Avenue, H Street | |
| Kern KER 0.00-R143.86 | Bakersfield | R54.42 | 112 | SR 204 north (Union Avenue) | Former US 99; southern terminus of SR 204 |
| Kern KER 0.00-R143.86 | Bakersfield | R55.40 | 113 | Martin Luther King Jr. Boulevard | Formerly Cottonwood Road |
| Kern KER 0.00-R143.86 | Bakersfield | R56.41 | 114 | Mount Vernon Avenue | |
| Kern KER 0.00-R143.86 | Bakersfield | R57.41 | 115 | Oswell Street | |
| Kern KER 0.00-R143.86 | Fairfax | R58.44 | 116 | Fairfax Road | |
| Kern KER 0.00-R143.86 | ​ | R59.44 | 117 | SR 184 (Weedpatch Highway, Morning Drive) – Lamont | Weedpatch Highway not signed westbound, Morning Drive not signed eastbound |
| Kern KER 0.00-R143.86 | Edison | R61.51 | 119 | Edison Road – Edison | |
| Kern KER 0.00-R143.86 | ​ | R63.58 | 121 | Comanche Drive – Arvin, Edison | |
| Kern KER 0.00-R143.86 | ​ | R65.68 | 123 | Tower Line Road | |
| Kern KER 0.00-R143.86 | ​ | 69.75 | 127 | General Beale Road | |
| Kern KER 0.00-R143.86 | ​ | 75.59 | East end of freeway | East end of freeway | East end of freeway |
| Kern KER 0.00-R143.86 | ​ | 75.63 | | SR 223 west – Arvin | At-grade intersection; eastern terminus of SR 223 |
| Kern KER 0.00-R143.86 | ​ | 77.04 | | Bealeville Road, Bena Road | At-grade intersection; eastern terminus of Bena Road |
| Kern KER 0.00-R143.86 | ​ | 77.26 | West end of freeway | West end of freeway | West end of freeway |
| Kern KER 0.00-R143.86 | Keene | 80.24 | 137 | Hart Flat Road | |
| Kern KER 0.00-R143.86 | Keene | 82.06 | 139 | Keene (Woodford-Tehachapi Road) | |
| Kern KER 0.00-R143.86 | Keene | R85.15 | 142 | Broome Road | |
| Kern KER 0.00-R143.86 | Tehachapi | R90.72 | 148 | SR 202 west (Tucker Road, SR 58 Bus. east) – Tehachapi | Eastern terminus of SR 202 |
| Kern KER 0.00-R143.86 | Tehachapi | R91.67 | 149 | Mill Street | |
| Kern KER 0.00-R143.86 | Tehachapi | R94.15 | Tehachapi Summit, elevation 4,064 feet (1,239 m) | Tehachapi Summit, elevation 4,064 feet (1,239 m) | Tehachapi Summit, elevation 4,064 feet (1,239 m) |
| Kern KER 0.00-R143.86 | Tehachapi | R94.16 | 151 | Tehachapi Boulevard (SR 58 Bus. west) | Former US 466 |
| Kern KER 0.00-R143.86 | ​ | R99.49 | 156 | Sand Canyon Road – Monolith | |
| Kern KER 0.00-R143.86 | ​ | R101.56 | 159 | Cameron Road | Pacific Crest Trail crossing |
| Kern KER 0.00-R143.86 | ​ | R108.90 | 165 | SR 58 Bus. east – Mojave | Former US 466 east / SR 58 east |
| Kern KER 0.00-R143.86 | ​ | R111.13 | 167 | SR 14 – Bishop, Mojave | Former US 6 |
| Kern KER 0.00-R143.86 | ​ | R116.22 | 172 | SR 58 Bus. west – Mojave | Former US 466 west / SR 58 west |
| Kern KER 0.00-R143.86 | ​ | R117.93 | | 25th Street | At-grade intersection; east end of freeway |
| Kern KER 0.00-R143.86 | ​ | R127.63 | | California City Boulevard – California City | At-grade intersection; west end of freeway |
| Kern KER 0.00-R143.86 | ​ | R129.67 | 186 | Edwards AFB (Rosamond Boulevard north gate) | |
| Kern KER 0.00-R143.86 | North Edwards | R132.04 | 188 | Clay Mine Road | |
| Kern KER 0.00-R143.86 | ​ | R136.40 | 193 | Twenty Mule Team Road | Former US 466 east |
| Kern KER 0.00-R143.86 | ​ | R137.77 | 194 | Gephart Road, Rocket Site Road | |
| Kern KER 0.00-R143.86 | ​ | R139.00 | Boron Rest Area | Boron Rest Area | Boron Rest Area |
| Kern KER 0.00-R143.86 | Boron | R139.80 | 196 | Borax Road (SR 58 Bus. east), Rocket Site Road | |
| Kern KER 0.00-R143.86 | Boron | 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 | |
| San Bernardino SBD R0.00-R34.81 | ​ | ​ | East end of freeway | East end of freeway | East end of freeway |
| San Bernardino SBD R0.00-R34.81 | ​ | ​ | West end of freeway | West end of freeway | West end of freeway |
| San Bernardino SBD R0.00-R34.81 | Hinkley | R26.33 | 227 | Hinkley Road | |
| San Bernardino SBD R0.00-R34.81 | ​ | R30.39 | 231 | Lenwood Road | |
| San Bernardino SBD R0.00-R34.81 | Barstow | R33.65 | 233 | CR 66 (West Main Street) – Barstow | Former US 66 / US 91 |
| San Bernardino SBD R0.00-R34.81 | Barstow | 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 ||||||
* 1 2 Indicates that the postmile represents the distance along SR 33 rather than SR 58.
* 1 2 Indicates that the postmile represents the distance along I-5 rather than SR 58.

## Business loops
### Tehachapi

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 |
| Tehachapi | 1.8 | 2.9 | South Curry Street | Former US 466 west / SR 202 west |
| Tehachapi | 4.1 | 6.6 | SR 58 – Mojave, Bakersfield | Interchange; eastern terminus; SR 58 exit 151 |
| Tehachapi | 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 |||||

### Mojave

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 |
| Mojave | 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 |||||

### Boron

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 |
| Kern | Boron | Module:Jctint/USA warning: Unused argument(s): state |
| Kern | Boron | 0.0 | 0.0 | SR 58 – Bakersfield, Barstow | Interchange; western terminus; SR 58 exit 196 |
| Kern | Boron | 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 |
| San Bernardino | 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 |
| San Bernardino | Kramer Junction | 10.1 | 16.3 | SR 58 – Barstow, Bakersfield | Interchange; eastern terminus; east end of US 395 overlap; SR 58 exit 206 |
| San Bernardino | Kramer Junction | 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 ||||||