California State Route 46

"CA 46" redirects here. For the congressional district, see California's 46th congressional district.

State Route 46 marker

State Route 46
Route information
Defined by Streets and Highways Code § 346
Maintained by Caltrans
Length: 110.696 mi[1] (178.148 km)
SR 46 is broken into pieces, and the length does not reflect the US 101 overlap that would be required to make the route continuous.
History: State highway in 1916; numbered in 1964
Major junctions
West end: SR 1 near Cambria
  US 101 in Paso Robles
I-5 in Lost Hills
SR 43 in Wasco
East end: SR 99 at Famoso
Highway system
← SR 45SR 47 →

State Route 46 (SR 46) is an east–west state highway in the U.S. state of California. It is a major crossing of the Coast Ranges, connecting SR 1 on the Central Coast near Cambria and US 101 in Paso Robles with SR 99 at Famoso in the San Joaquin Valley. East of Paso Robles, where it carried U.S. Route 466 until 1964, SR 46 is part of the California Freeway and Expressway System, though it is mostly a two-lane highway. The highway from SR 1 to SR 41 near Cholame is an eligible State Scenic Highway, but has not been designated as such.

The road that is now SR 46 was built and improved during the 1920s and was fully paved by 1930. The majority of SR 46 was originally designated as U.S. Route 466; however, after the latter was entirely removed from the U.S. Highway system, the eastern portion of the route became SR 46.

Route description

State Route 46 begins at SR 1 southeast of Cambria, about one mile (2 km) from the Pacific Ocean. It heads east as the Eric Seastrand Highway across the Santa Lucia Range on a relatively straight roadway built in the 1970s, bypassing the steep, curvy Santa Rosa Creek Road. After passing near several wineries, this first segment ends at US 101 north of Templeton, where SR 46 turns north, overlapping the US 101 freeway through the valley formed by the Salinas River to central Paso Robles. Immediately after splitting from US 101, SR 46 crosses the Salinas River, passing near the Paso Robles Municipal Airport, and then heads east through a hilly area with several wineries and the community of Whitley Gardens. It then runs partially alongside the Estrella River to a merge with SR 41 near Shandon and a rest area. There, it turns northeast, following Cholame Creek through Cholame Pass between the Cholame Hills and Temblor Range to the settlement of Cholame and the split with SR 41. After crossing into Kern County, the highway continues to rise as it heads east up the Antelope Grade to a summit near Bluestone Ridge before descending through Polonio Pass into the Antelope Valley, an arm of the San Joaquin Valley.[2][3]

Descending into Cholame westbound on CA 46. The Cholame Hills are visible in the distance.

Once it enters the San Joaquin Valley, SR 46, known as the Paso Robles Highway, follows an almost perfectly straight eastward alignment, crossing SR 33 at Blackwells Corner, passing through the Lost Hills Oil Field, and intersecting I-5 about two miles (3 km) past Lost Hills and the crossing of the California Aqueduct. SR 46 then passes through the Semitropic Oil Field about seven miles west of Wasco. SR 46 and SR 43 overlap for a short distance in the city of Wasco, and then SR 46 passes over Calloway Canal and Friant Canal before it ends at SR 99 in Famoso. The county-maintained Famoso Road continues east across SR 65 and into the Sierra Nevada foothills.[2][3]

History

As part of the second state highway bond issue, approved by the state's voters in 1916, Route 33 was created, linking the San Joaquin Valley trunk (Route 4, now SR 99) near Bakersfield with the coast trunk (Route 2, now US 101 in Paso Robles, passing through the Coast Ranges via Cholame Pass.[4][5] The road was not yet built in 1919, when the Automobile Blue Book recommended only the county-maintained "very poor road" (now SR 58) via Simmler as a connection between the valley and Central Coast.[6] By 1925, the Cholame Pass highway had been improved,[7] and paving was completed in December 1930.[8] An extension west to Route 56 (now SR 1) near Cambria was added in 1933;[9][10] however, it ran along Santa Rosa Creek Road, north of today's alignment.[11]

The state sign route system was established in 1934, but the majority of Route 33 did not receive a state route designation, instead becoming part of the new U.S. Route 466. However, US 466 turned southwest from Cholame Pass along Legislative Route 125 (modern SR 41) to Morro Bay. Sign Route 41, which followed Legislative Route 125 northeast of Cholame, continued along Route 33 west to the coast.[12][13][14][15] However, Route 125 had still not been paved between Cholame and Atascadero by the 1950s, and so US 466 was moved to the longer but better-quality Route 33 via Paso Robles, replacing SR 41 to Paso Robles and overlapping US 101 to Atascadero. As SR 41 had not been signed over the unpaved road west of Paso Robles, it was truncated to Cholame.[16] US 466 was eliminated in the 1964 renumbering, becoming SR 46 east from Paso Robles. However, instead of going south and west to Morro Bay, SR 46 continued west to Cambria, and the road via Creston and Atascadero to Morro Bay (which had since been paved) became part of SR 41.[17][18] A new two-lane expressway carrying SR 46 west from Paso Robles[19] was built in the mid-1970s, replacing Santa Rosa Creek Road.[11]

The James Dean Memorial Junction, looking northeast, with SR 41 heading away from the camera

The two-lane stretch from Paso Robles to Cholame was once known as "Blood Alley" for the large number of car crashes, mainly head-on collisions, among the high volume of commuters, truckers, and tourists.[20] Between 2000 and 2010, a total of 38 people have died.[21] As of 2016, Blood Alley was widened to a four lane expressway from the junction of US 101 to just east of the west junction of SR 41, near the town of Shandon. The east junction of the SR 46 - SR 41 split, is named after actor James Dean, who was killed in a car accident near this site on September 30, 1955.[22] The current intersection is now marked as the James Dean Memorial Junction. The junction was officially dedicated as the James Dean Memorial Junction on September 30, 2005, as part of the State of California's official commemoration of the 50th anniversary of Dean's death.[23] However, this is not the actual intersection where the accident occurred, contrary to popular belief. The accident scene is approximately 100 feet to the south of the current intersection, where the road use to be. The California Department of Transportation (Caltrans) carried out an interim safety project in December 1995, mandating daytime headlights and installing thermoplastic striping and rumble strips. Caltrans has plans to start widening the section between SR 33 and I-5 in 2017. There are also plans to upgrade SR 46 west of this segment and build an interchange at the James Dean Memorial Junction (SR 41 North).[24][25]


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).[1] 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.

CountyLocationPostmile
[1][11][26]		Exit
[27]		DestinationsNotes
San Luis Obispo
SLO R0.15-60.85		​R0.15 SR 1 – Cambria, Hearst Castle, Cayucos, Morro BayWest end of SR 46
Paso RoblesR21.97
54.12[N 1]		 US 101 south / Ramada DriveInterchange; west end of US 101 overlap
​West end of freeway on US 101
55.67[N 1]229Spring Street (US 101 Bus. north)Eastbound exit and westbound entrance
​230Pine StreetWestbound exit and entrance
​230Paso Robles StreetEastbound exit only
56.88[N 1]231A16th StreetWestbound exit and eastbound entrance
​East end of freeway on US 101
57.92[N 1]
29.76		 US 101 north / CR G14 (24th Street) – Nacimiento LakeInterchange; east end of US 101 overlap
Shandon48.63 SR 41 south – Shandon, CrestonWest end of SR 41 overlap; former US 466 west
​49.60Shandon Rest Area
Cholame55.11 SR 41 north – FresnoEast end of SR 41 overlap
Kern
KER 0.00-57.79		Blackwells Corner20.54 SR 33 – Coalinga, McKittrick, Taft
​27.48Brown Material Road, Halloway Road
Lost Hills32.53 I-5 (Westside Freeway) – Sacramento, Los AngelesInterchange
​43.02Rowlee Road – Buttonwillow
Wasco50.90 SR 43 south (F Street) to I-5 south – Shafter, Central DistrictWest end of SR 43 overlap
51.22 SR 43 north / J Street – CorcoranEast end of SR 43 overlap
Famoso57.79 SR 99 – Delano, BakersfieldInterchange; east end of SR 46; former US 99 / US 466 east
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  1. 1 2 3 4 Indicates that the postmile represents the distance along US 101 rather than SR 46.

References

  1. 1 2 3 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.
  2. 1 2 California Road Atlas and Drivers' Guide (Map). Thomas Brothers. 2008.
  3. 1 2 United States Forest Service topographical maps via ACME Mapper (Map). United States Forest Service. Retrieved January 2008. Check date values in: |access-date= (help)
  4. ↑ Howe & Peters (1921). Engineers' Report to California State Automobile Association Covering the Work of the California Highway Commission for the Period 1911-1920. Times Mirror Printing & Binding House. pp. 11–16.
  5. ↑ California State Assembly. "An act authorizing the acquisition, construction, improvement, maintenance and control of the uncompleted portions of the system of state highways prescribed and contemplated by an act entitled 'An act authorizing the construction, acquisition, maintenance and control of a system of...". Forty-first Session of the Legislature. Statutes of California. State of California. Ch. 404 p. 653.: "an extension connecting the San Joaquin valley trunk line at or near Bakersfield with the coast trunk line in San Luis Obispo county, through Cholame pass, by the most direct and practical route"
  6. ↑ Official Automobile Blue Book, Volume Eight. 1919. pp. 20–21, 114. External link in |title= (help)
  7. ↑ Mileage Map of the Best Roads of California and Nevada (Map). Clason Map Company. 1925.
  8. ↑ "Bakersfield to Paso Robles Road Now Completed". Fresno Bee. 1930-12-24.
  9. ↑ California State Assembly. "An act to amend sections 2, 3 and 5 and to add two sections to be numbered 6 and 7 to an act entitled 'An act to provide for the acquisition of rights of way for and the construction, maintenance...". Fiftieth Session of the Legislature. Statutes of California. State of California. Ch. 767 p. 2038.: "State Highway Route 56 near Cambria to State Highway Route 2 near Paso Robles."
  10. ↑ California State Assembly. "An act to establish a Streets and Highways Code, thereby consolidating and revising the law relating to public ways and all appurtenances thereto, and to repeal certain acts and parts of acts specified herein". Fifty-first Session of the Legislature. Statutes of California. State of California. Ch. 29 p. 277.: "Route 33 is from: (a) Route 4 near Bakersfield to Route 2 in San Luis Obispo County via Cholame Pass. (b) Route 56 near Cambria to Route 2 near Paso Robles."
  11. 1 2 3 California Department of Transportation, Log of Bridges on State Highways, July 2007
  12. ↑ California Division of Highways. "State Routes will be Numbered and Marked by Distinctive Bear Signs." California Highways and Public Works (1934).
  13. ↑ Richard F. Weingroff. "U.S. 666: "Beast of a Highway"?".
  14. ↑ Oregon (Map). H.M. Gousha Company. 1935.
  15. ↑ Richfield Strip Maps: California, Oregon, Washington (Map). Rand McNally & Company. 1936.
  16. ↑ California (Map). H.M. Gousha Company. 1955.
  17. ↑ California (Map). H.M. Gousha Company. 1963.
  18. ↑ California State Assembly. "An act to add Section 253 and Article 3 (commencing with Section 300) to Chapter 2 of Division 1 of, and to repeal Section 253 and Article 3 (commencing with Section 300) of Chapter 2 of Division 1 of, the...". 1963 Session of the Legislature. Statutes of California. State of California. Ch. 385 p. 1175.
  19. ↑ "Shortage of Money Delays Expressway". Los Angeles Times. 1966-10-05. p. E6.
  20. ↑ Fagan, Kevin (2002-09-29). "Fatal attraction: Popular corner that claimed James Dean's life remains deadly intersection". San Francisco Chronicle. Retrieved 2012-04-29.
  21. ↑ "James Dean highway to be widened 55 years after he died in a car crash". The Daily Telegraph. 2010-10-10. Retrieved 2012-04-29.
  22. ↑ Epting, Chris (2010-09-30). "James Dean Died 55 Years Ago -- So Where Is the Car?". AOL News. Retrieved 2012-04-29.
  23. ↑ California State Legislature (2002-08-15). "Senate Concurrent Resolution 52, Chapter 107" (PDF).
  24. ↑ Roadway Safety Foundation. "The California Coalition cleans up "Blood Alley"". Retrieved January 2008. Check date values in: |access-date= (help)
  25. ↑ California Department of Transportation. "Highway 46 Project: Project Background". Retrieved January 2008. Check date values in: |access-date= (help)
  26. ↑ California Department of Transportation, All Traffic Volumes on CSHS, 2005 and 2006
  27. ↑ California Department of Transportation, California Numbered Exit Uniform System, U.S. Route 101 Freeway Interchanges, Retrieved on 2009-02-14.
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