California State Route 204

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State Route 204 marker

State Route 204
Map of Kern County in south central California with SR 204 highlighted in red
Route information
Defined by Streets and Highways Code § 504
Maintained by Caltrans
Length: 6.76 mi[1] (10.88 km)
Existed: 1933 as LRN 141,
1964 as SR 204 – present
Major junctions
South end: SR 58 in Bakersfield
  SR 178 in Bakersfield
North end: SR 99 near Oildale
Counties: Kern
Highway system
SR 203 I-205

State Route 204 (SR 204) is a short state highway in the Bakersfield, California, United States area. It connects SR 99 and SR 58 with downtown. It also connects Bakersfield's three major freeways together (SR 99, SR 58, and SR 178). Only the north 1.4 miles has been built to freeway standards; the rest is a six-lane arterial road.

Business plate green.svg
California 99.svg

All of SR 204 is a part of State Route 99 Business. The business route also continues south, where it meets with SR 99.

Route description[edit]

SR 204 begins as a six-lane arterial at SR 58 as Union Avenue. From there, the route travels north on Union Avenue. After intersecting California Avenue., SR 204 crosses underneath the Truxtun Avenue interchange. At the Union Avenue. Y intersection, the route turns northwest as Golden State Avenue. It then crosses SR 178 and Garces Circle, which provides access to Downtown Bakersfield. The route then crosses F St, at which point it becomes a four-lane freeway. The route crosses its only numbered interchange at Airport Dr, and then terminates at SR 99.

SR 204 is part of the National Highway System,[2] a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.[3]


Before the 1964 renumbering, State Route 204 was known as Legislative Route 141. It was created in 1933 as a western bypass to Bakersfield via Brundage Lane. and Oak St. At that time, US 99 (defined by the State as Legislative Route 4) ran through Bakersfield via Chester Ave, and through Oildale (north of Bakersfield) via Roberts Ln. LRN 141 started at the intersection of US 99 (Chester Ave.) and Brundage Ln, where it traveled west to Oak St. At Oak St, the route turned north, crossed the Kern River, and terminated at US 99 (Roberts Ln.) near Beardsley School in Oildale.[4]

In the mid 1930s US 99 was moved from Chester Ave./Roberts Ln. to Union Ave./Golden State Ave. During the late 1950s, the Union Ave. Wye, Truxton Ave. Interchange, and Chester Ave. Interchange (with the bridge over Garces Circle) were constructed to improve traffic flow. However, when the US 99 freeway bypass was constructed in 1963, Caltrans decided to use the Oak St. route around the city instead of the Union Ave. route through the city. As a result, the route designations were swapped. The freeway parallel to Oak St. would become US 99. LRN 141 would become the US 99 bypass via Brundage Ln, Union Ave, and Golden State Ave. That designation never took effect because in 1963 all of the state highways were renumbered. As a result, LRN 141 became SR 204. Its definition was also simplified to bypass SR 99 via Union Ave. and Golden State Ave, although that change lengthened the route. In 1978, the route was shortened to connect SR 58 to SR 99 via Union Ave. and Golden State Ave, which was close to the original 1963 definition.[4][5]


Bakersfield has considered several times to convert all or part of SR 204 to a freeway. In 1986, part of the route was considered as the western extension of SR 178.[6] However, that study (which was not a formal route adoption study) recommended another alignment for the freeway. In 2001, Bakersfield’s system study proposed converting all of SR 204 to a freeway as part of the western extension of SR 58.[7] However, that proposal has been dropped in favor of the Westside Parkway connection (known as the Centennial Corridor).

Major intersections[edit]

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 an overlap due to a correction or change, and T indicates postmiles classified as temporary (for a full list of prefixes, see the list of postmile definitions).[8] Segments that remain unconstructed or have been relinquished to local control may be omitted. The entire route is in Bakersfield, Kern County.

Destinations Notes
SR 99 Bus. south (Union Avenue)
Continuation beyond SR 58; former US 99 south / SR 204 south
SR 58 to SR 99 – Mojave Interchange; south end of SR 99 Bus. overlap; south end of SR 204; SR 58 exit 112
2.07 Brundage Lane, East Brundage Lane
3.09 California Avenue, East California Avenue
3.41 Truxtun Avenue Interchange
3.76 To SR 178 / Union Avenue
4.06 To SR 178 west / 24th Street
4.24 SR 178 east – Lake Isabella Interchange; southbound exit and northbound entrance; SR 178 west exit 2A
4.88 Chester Avenue – Oildale Interchange
  South end of freeway
6.46 6 To SR 99 south / Airport Drive, Buck Owens Boulevard Airport Drive serves Meadows Field Airport
6.75 SR 99 north – Fresno, Sacramento Northbound exit and southbound entrance; north end of SR 99 Bus. overlap; north end of SR 204; former US 99 north / US 466 west; SR 99 south exit 27
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also[edit]


  1. ^ a b California Department of Transportation (July 2007). "Log of Bridges on State Highways". Sacramento: California Department of Transportation. 
  2. ^ Federal Highway Administration (March 25, 2015). National Highway System: Bakersfield, CA (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved September 15, 2017. 
  3. ^ Natzke, Stefan; Neathery, Mike & Adderly, Kevin (June 20, 2012). "What is the National Highway System?". National Highway System. Washington, DC: Federal Highway Administration. Retrieved July 1, 2012. 
  4. ^ a b Routes 137-144. Accessed: 2009-10-18.
  5. ^ Routes 201-208. Accessed: 2009-10-18.
  6. ^ Route 178 Corridor Study. KernCOG. December 1986. Pages 28-29. Accessed: 2009-10-18.
  7. ^ Bakersfield System Study. KernCOG. December 2002. Page 23. Accessed: 2009-10-18.
  8. ^ a b California Department of Transportation. "State Truck Route List". Sacramento: California Department of Transportation. Archived from the original (XLS file) on June 30, 2015. Retrieved June 30, 2015. 
  9. ^ California Department of Transportation, All Traffic Volumes on CSHS, 2004, 2005, and 2006
  10. ^ California Department of Transportation, California Numbered Exit Uniform System, State Route 204 Freeway Interchanges, Retrieved on 2009-02-07.

External links[edit]

Route map: Google

KML is from Wikidata