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California State Route 42

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Title: California State Route 42  
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Subject: List of state highways in California, Los Angeles Police Department, Sepulveda Boulevard, South Gate, California, Randy's Donuts
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California State Route 42

State Route 42 marker

State Route 42
Route information
Maintained by Caltrans
Existed: 1960 – 2000
Major junctions
West end: SR 1 in Westchester
  I‑405 in Inglewood
I‑110 in Los Angeles
I‑710 in South Gate
I‑605 near Downey
East end: I‑5 in Norwalk
Highway system
SR 41 SR 43

State Route 42 (SR 42) was a state highway in southern region of the U.S. state of California, running along Manchester Avenue, Manchester Boulevard and Firestone Boulevard in Los Angeles and the cities south of it. After 1968, it ran from State Route 1 west of Inglewood (near Los Angeles International Airport) east to Interstate 5 in Norwalk. Though signed as SR 42, it was officially Route 105 until replaced by the parallel Interstate 105 around 1990.[1] From then until the last piece was turned over to local maintenance in 2000, it was an unrelinquished piece of Route 105, and continued to be signed as SR 42.[2]


  • Route description 1
  • History 2
  • Major intersections 3
  • References 4

Route description

Manchester Avenue begins in Los Angeles near the Pacific Ocean at Vista del Mar Lane, and becomes a major road at Pershing Drive. The part west of Lincoln Boulevard (State Route 1) was never a numbered route. East of Sepulveda Boulevard, Manchester Avenue crosses into Inglewood, where it is known as Manchester Boulevard. It jogs about two blocks to the north just west of Interstate 405, and back to the south after passing downtown Inglewood. Upon crossing back into Los Angeles, it is again Manchester Avenue.

At Central Avenue, the road leaves Los Angeles into Walnut Park and becomes Firestone Boulevard, which passes through South Gate and Downey, ending in Norwalk at a merge with Interstate 5 (the Santa Ana Freeway), where SR 42 ended. The name continues however on the frontage roads of I-5 until it enters Buena Park at Artesia Boulevard, where the name changes back to Manchester Boulevard until Orangethorpe Avenue. Manchester Boulevard in Buena Park has since been changed to Auto Center Drive in August 2006. The frontage road begins again in Anaheim, named Manchester Avenue in several pieces between Euclid Street and State College Boulevard.

Metro Local line 115 operates on Manchester Avenue and Firestone Boulevard.

Manchester Avenue serves a Harbor Transitway station underneath the Harbor Freeway.

Firestone Boulevard intersects with the Metro Blue Line light rail, served by the station of the same name in Walnut Park.


Legislative Route 174 was defined in 1933 to run from pre-1964 Legislative Route 60 west of Inglewood east to pre-1964 Legislative Route 2 near Santa Ana.[3] It was signed as State Route 10 in the initial signage of routes in 1934, running from State Route 3 (now State Route 1) to U.S. Route 101 near the present junction of Interstate 5 and Anaheim Boulevard. (US 101 and LR 2 left the current I-5 alignment north onto Anaheim Boulevard, eventually entering downtown Los Angeles via present State Route 72.)

Note: the present alignment of I-5 between Chapman Avenue in Anaheim and Main Street in Santa Ana was also part of LR 174, after a short concurrency of LR 2 and LR 174 in Anaheim. LR 2 used those two streets through Orange, but US 101 was moved to LR 174 once it was built, and so that part of LR 174 was never signed as SR 10. The bypassed section of LR 2 became State Route 51 in the 1964 renumbering, but was removed from the state highway system in 1965.[4]

By 1942, the piece of SR 10 east of State Route 19 (Lakewood Boulevard) had been designated U.S. Route 101 Bypass.[5] U.S. Route 101 moved to the present Interstate 5 alignment, formerly US 101 Bypass, by 1959, and SR 10 was truncated to the present I-5/Firestone Boulevard junction.[6]

Around 1960, SR 10 was renumbered to State Route 42 due to the nearby Interstate 10 (numbered in 1957).[2] This change, which would have normally happened in the 1964 renumbering, was done early due to the closeness of I-10. Route 42 was legislatively defined in that renumbering, running not only from SR 1 to I-5, but beyond to State Route 91 in Anaheim Hills. This route split from the existing SR 42 in Norwalk and ran east along unbuilt pre-1964 Legislative Route 176 to the intersection of State Route 39 (Beach Boulevard) and Imperial Highway. East of SR 39, Imperial Highway was state-maintained, and carried pre-1964 LR 176 and post-1964 SR 42 to its end at SR 91.[7] The whole route, from SR 1 to SR 91, had been added to the California Freeway and Expressway System in 1959.[8][9]

The route was never signed with State Route 105 shields, despite having that number since 1968.

In 1965, the unbuilt part from Interstate 605 east to SR 39 was transferred to State Route 90, which had been defined in 1964 to end at I-605; this left a gap in SR 42. The part of SR 42 west of I-605 was added to the Interstate Highway System as Interstate 105 in March 1968,[10] and the legislative changes were made that year - that piece became Route 105, and the piece east of SR 39 became a further extension of SR 90.[2]

Despite being officially Route 105 since 1968, the route continued to be signed as SR 42, not only along its defined alignment from SR 1 to I-605, but past I-605 to Interstate 5 (which had loosely become part of SR 90 in 1965).[11]

Interstate 105 was constructed from 1982 to 1994.[8] Even after the new route was finished, the old route continued to be signed as SR 42, even after the last section was relinquished in mid-2000.[2] Some signs still remained in 2004.[12]

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 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).[13] Segments that remain unconstructed or have been relinquished to local control may be omitted. The entire route was in Los Angeles County.
Location Postmile
Destinations Notes
Los Angeles 0.00 Manchester Avenue Continuation beyond SR 1
0.00 SR 1 (Lincoln Boulevard) West end of SR 42
1.32 Sepulveda Boulevard
Inglewood   La Cienega Boulevard
2.91 I‑405 (San Diego Freeway) Interchange
3.83 Hawthorne Boulevard Former SR 107
5.42 Crenshaw Boulevard
Los Angeles 6.42 Western Avenue Former SR 213
7.42 Vermont Avenue
7.93 Figueroa Street
8.04 I‑110 (Harbor Freeway) – Los Angeles, San Pedro Interchange
8.19 Broadway
9.44 Central Avenue
  10.97 Alameda Street Former SR 47
South Gate 11.61 Long Beach Boulevard
14.53 I‑710 (Long Beach Freeway) – Pasadena, Long Beach Interchange
14.81 Garfield Avenue
Downey 17.45 SR 19 (Lakewood Boulevard)
Norwalk 18.82 I‑605 (San Gabriel River Freeway) Interchange
  Imperial Highway
  I‑5 south (Santa Ana Freeway) Interchange; eastbound exit and westbound entrance; east end of SR 42
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ January 1, 2006 California Log of Bridges on State Highways
  2. ^ a b c d California Highways: Former State Route 42
  3. ^ California Highways: Legislative Route 174
  4. ^ California Highways: Unsigned State Route 51
  5. ^ 1942 Gousha Los Angeles and vicinity map
  6. ^ 1955 Gousha Los Angeles district map
  7. ^ District VII State Highway Numbering Map, September 20, 1963
  8. ^ a b California Highways: Interstate 105
  9. ^ California Highways: State Route 90
  10. ^ California Highways: Interstate Highway Types and the History of California's Interstates
  11. ^ October 21, 2000 photo of signage on Interstate 5 north at former SR 42
  12. ^ July 6, 2004 photo of signage on Interstate 710 south approaching Firestone Boulevard
  13. ^ Staff. "State Truck Route List" ( 
  14. ^ California Department of Transportation, Log of Bridges on State Highways, July 2007
  15. ^ California Department of Transportation, All Traffic Volumes on CSHS, 1996
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