View source for California State Route 39

{{Short description|State highway in California}}
{{Use American English|date=July 2025}}
{{Use mdy dates|date=July 2025}}
{{Infobox road
|state=CA
|type=SR
|route=39
|section=339
|maint=[[California Department of Transportation|Caltrans]]
|map={{maplink-road|from=California State Route 39.map}}
|map_custom=yes
|map_notes=SR&nbsp;39 highlighted in red; gaps indicate the unconstructed or relinquished portions
|length_mi=54.19
|length_ref=<ref name=trucklist/>
|length_round=3
|length_notes=SR&nbsp;39 is broken into pieces due to an unconstructed portion, and the length does not reflect the gap. Also, portions of SR&nbsp;39 have been relinquished to or are otherwise maintained by local or other governments, and are not included in the length.
|established=1934<ref name="cah 39">{{cite web|url=http://cahighways.org/033-040.html#039|title=California Highways (www.cahighways.org): Routes 33 through 40|website=Cahighways.org|access-date=21 May 2018}}</ref>
|direction_a=South
|section1=Southern segment
|terminus_a1={{jct|state=CA|SR|1}} in [[Huntington Beach, California|Huntington Beach]]
|junction1=
*{{jct|state=CA|I|405}} at the Huntington Beach&ndash;[[Westminster, California|Westminster]] line
*{{jct|state=CA|SR|22}} in Westminster
*{{jct|state=CA|SR|91}} [[Buena Park]]
*{{jct|state=CA|I|5}} in Buena Park
|terminus_b1=[[Whittier Boulevard]]&nbsp;/ [[Harbor Boulevard]] in [[La Habra]]
|section2=Northern segment
|terminus_a2={{jct|state=CA|I|10|CR|N8}} in [[West Covina, California|West Covina]]
|junction2={{jct|state=CA|I|210}} in [[Azusa, California|Azusa]]
|direction_b=North
|terminus_b2={{jct|state=CA|SR|2}} in [[Angeles National Forest]]
|restrictions=The segment from north of Crystal Lake Road to its northern terminus at [[California State Route 2|SR&nbsp;2]] is closed indefinitely to public highway traffic
|counties=[[Orange County, California|Orange]], [[Los Angeles County, California|Los Angeles]]
|previous_type=SR
|previous_route=38
|next_type=I
|next_route=40
}}

'''State Route 39''' ('''SR&nbsp;39''') is a state highway in the [[U.S. state]] of [[California]] that travels through [[Orange County, California|Orange]] and [[Los Angeles County, California|Los Angeles]] counties. Its southern terminus is at [[Pacific Coast Highway (US)|Pacific Coast Highway]] ([[California State Route 1|SR&nbsp;1]]), in [[Huntington Beach, California|Huntington Beach]]. SR&nbsp;39's northern terminus is at [[Islip Saddle]] on [[Angeles Crest Highway]] ([[California State Route 2|SR&nbsp;2]]) in the [[Angeles National Forest]], but its northernmost {{convert|4.5|mi|km|adj=on}} segment (including the connection with SR&nbsp;2) has been closed to public highway traffic since 1978 due to a massive mud and rockslide.

Officially, the highway is broken into pieces. Caltrans has not adopted or signed the segment between [[La Habra, California|La Habra]] and [[West Covina, California|West Covina]]. Caltrans has also relinquished segments of SR&nbsp;39 within the cities of [[Anaheim, California|Anaheim]] in 2024,<ref>{{cite web| title=Anaheim's Beach Boulevard will see new affordable housing community, Dutch Bros and other eateries soon |url=https://www.ocregister.com/2025/04/15/anaheims-beach-boulevard-will-see-new-affordable-housing-community-dutch-bros-and-other-eateries-soon/|website=[[Orange County Register]]| date=April 15, 2025 |accessdate=18 September 2025}}</ref> [[Buena Park, California|Buena Park]] in 2013, [[Azusa, California|Azusa]] by 2010, [[Covina, California|Covina]] by 2010, and [[West Covina, California|West Covina]] by 2013, although some maps and signs may still mark SR&nbsp;39 as continuous through these cities. Since 2001, a portion of SR&nbsp;39 that runs through the city of [[Stanton, California|Stanton]] has also been considered for relinquishment to the city.<ref>{{cite web|url=http://www.dot.ca.gov/hq/tpp/corridor-mobility/documents/d_12_docs/route39.pdf |title=Route 39 and Caltrans|website=Dot.ca.gov|access-date=20 May 2018}}</ref>

Major places of interest along SR&nbsp;39 are [[Knott's Berry Farm]], an amusement park; [[Adventure City]], another amusement park targeted for children; Huntington Beach, a local beach; a [[Medieval Times]] location; the Buena Park Auto Center; and the Westridge Golf Course in [[La Habra, California|La Habra]].

==Route description==
SR&nbsp;39 begins at [[California State Route 1|SR&nbsp;1]] (Pacific Coast Highway) in [[Huntington Beach, California|Huntington Beach]] and runs north along Beach Boulevard to [[Whittier Boulevard]] in [[La Habra, California|La Habra]], with the exception of two stretches: the segment between Stanton Avenue and [[Interstate 5 in California|Interstate 5]] was relinquished to the city of [[Buena Park, California|Buena Park]] in 2013, and the segment between the [[Stanton, California|Stanton]]–[[Anaheim, California|Anaheim]] line and Stanton Avenue was relinquished to the city of Anaheim in 2024. SR&nbsp;39 briefly enters [[La Mirada, California|La Mirada]] and Los Angeles County near [[Rosecrans Avenue]], then goes back into Orange County at the [[La Habra, California|La Habra]]–La Mirada line. SR&nbsp;39 then turns east along Whittier Boulevard to Harbor Boulevard, taking over a former segment of [[California State Route 72|SR&nbsp;72]], while the remaining segment SR&nbsp;72 remains on Whittier Boulevard west of Beach Boulevard.

The segment from the Whittier–Harbor intersection to the [[San Bernardino Freeway]] ([[Interstate 10 (California)|Interstate 10]]) in [[West Covina, California|West Covina]] is not officially designated by Caltrans (as indicated by an "END&nbsp;39" sign at the Whittier–Harbor intersection). Under [[s:California Streets and Highways Code, Chapter 2, Article 3, Section 301-635#Route 39|California Streets and Highways Code §&nbsp;339&nbsp;(d)]], the traversable route takes SR&nbsp;39 along Harbor Boulevard north, Fullerton Road north, and then Colima Road west to Azusa Avenue in [[Hacienda Heights, California|Hacienda Heights]]. SR&nbsp;39 would then continue north on Azusa Avenue through the [[City of Industry, California|City of Industry]] to Interstate 10.<ref name=SB1318>{{cite act |type=Section|index=17|date=2010|article=491 |article-type=Chapter |legislature=[[California State Legislature]]|title=An act to amend Section 14556.40 of, and to repeal Section 14529.15 of, the Government Code, to amend Sections 21669.6, 24908, 29034.7, 29035.5, 99221, 99313.1, 99633, and 132820 of, and to repeal Section 132352.6 of, the Public Utilities Code, to amend Sections 149.5, 301, 302, 319, 339, 358, 371, 372, 374, 379, 383, 384, 411, 444, 451, 460, 464, 470, 560, 30914, and 30914.5 of, to add Section 575 to, and to repeal Section 301.5 of, the Streets and Highways Code, and to amend Sections 2800, 5201, 14611, 21754, 21755, 22452, 22511.55, 24400, 26100, 26101, 26505, 29004, 34518, and 40802 of, and to add Section 667 to, the Vehicle Code, relating to transportation.|url=http://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=200920100SB1318}}</ref>{{Disputed inline|Segment between La Habra and West Covina|date=April 2021}}

Adopted SR&nbsp;39 then resumes and signs for SR&nbsp;39 appear on Azusa Avenue from its junction with Interstate 10 in West Covina, and through [[Covina, California|Covina]] to First Street in the city of [[Azusa, California|Azusa]] just north of [[Interstate 210 (California)|Interstate 210]]. The route then runs as a [[One-way pair|couplet]] (composed of two one-way streets), with northbound traffic on Azusa Avenue, and southbound traffic on San Gabriel Avenue, to Sierra Madre Avenue where the two one-way streets converge to form San Gabriel Canyon Road. Although Caltrans relinquished the entire route in the cities of West Covina, Covina, and Azusa, SR&nbsp;39 shields remain on this segment of the highway.

State maintenance of SR&nbsp;39 begins again along San Gabriel Canyon Road at the north limit of Azusa. The highway winds through the [[San Gabriel Mountains]] in the [[Angeles National Forest]] for {{convert|22.6|mi|km}} until it reaches a gate barring the road {{convert|0.25|mi|km}} north of Crystal Lake Road in the [[Crystal Lake Recreation Area]]. The last few miles of the route, including the connection to [[California State Route 2|SR&nbsp;2]], are closed to public highway traffic, as the roadbed has been closed since 1978, due to major rock slides that year and again in 2005 which damaged more of the remaining roadbed.

A replacement of the section north of [[East Fork Road]], in the next canyon to the east, was partly built in 1936 and 1961, but was never completed. The section includes one bridge and two tunnels; it was never used by automobile or truck traffic. In one local hiking guide the section is identified as the "Road to Nowhere" and the "Convict Road", although the official name is the Shoemaker Road and was planned to be an escape route in times of nuclear warfare.<ref>{{Cite web |url=http://www.wejc.com/photo_gallery/the_convict_road.htm |title=The Convict Road |access-date=2010-04-15 |archive-url=https://web.archive.org/web/20110117030054/http://www.wejc.com/photo_gallery/the_convict_road.htm |archive-date=2011-01-17 |url-status=dead }}</ref> A ca. 1967<ref name="bridgelog" /> replacement, much closer to the existing alignment, was also stopped prematurely, and so the middle of the segment between East Fork Road and the closure gate, with its many [[hairpin curve]]s, still exists.

SR&nbsp;39 is part of the [[California Freeway and Expressway System]],<ref name="cafes">{{CAFESystem}}</ref> and the urban portions of SR&nbsp;39 are part of the [[National Highway System (United States)|National Highway System]],<ref name=fhwa-nhs>{{FHWA NHS map|region=losangeles|accessdate=October 15, 2017}}</ref> a network of highways that are considered essential to the country's economy, defense, and mobility by the [[Federal Highway Administration]].<ref name=NHS-FHWA>{{FHWA NHS}}</ref> SR&nbsp;39 is eligible for the [[State Scenic Highway System (California)|State Scenic Highway System]],<ref name="scenic">{{CA scenic}}</ref> but it is not officially designated as a scenic highway by the [[California Department of Transportation]].<ref name="caltransscenic">{{Caltrans scenic|accessdate=October 15, 2017}}</ref>

==History==
===La Habra to West Covina connection===
Although defined to be a continuous route in the California Streets and Highway Code, the segment from Whittier Boulevard in [[La Habra, California|La Habra]] to [[West Covina, California|West Covina]] is not officially adopted or signed by [[Caltrans]]. This is indicated at the intersection of Whittier Boulevard and Harbor Boulevard, where an "END 39" sign appears.

Prior to the present before reaching Harbor Boulevard, SR&nbsp;39 continued north from Whittier Boulevard along Hacienda Road to the Los Angeles/Orange County line then north on Hacienda Boulevard and Glendora Avenue to [[U.S. Route 60#Historical California alignment|US&nbsp;60]], [[U.S. Route 70#History|70]], and [[U.S. Route 99 in California|99]] ([[Garvey Avenue]], now [[Interstate 10 in California|Interstate 10]]) in West Covina.<ref>{{cite web|url=http://www.socalregion.com/wp-content/uploads/2013/02/los_angeles_1939.jpg |title=Map of Los Angeles and Vicinity, 1939}}</ref> It then continued east with US&nbsp;60, 70, and 99 to Azusa Avenue where it turned north to follow the present alignment as described beginning in the fourth paragraph of the preceding section. The Hacienda Glendora segment can still be seen as Route 39 on some maps.

Prior to 1991, Harbor Boulevard became Fullerton Road northbound from the Los Angeles/Orange County Line, through the Puente Hills as a one-lane winding road into Rowland Heights. However, due to complaints of nearby residents due to the increased volume of traffic, a straighter, wider stub was built slightly to the east, and was named Harbor Boulevard. This route is under consideration to become part of SR&nbsp;39 to complete the gap.

The new Harbor Boulevard was opened to the public early in 1992, and is now the primary corridor between Orange County and Rowland Heights, although the original winding Fullerton Road segment still exists as a strictly residential street.{{Cn|date=June 2025}}

The definition of Route 39 in the California Streets and Highway Code was thus changed accordingly, and the traversable route to fill the Route 39 gap would be via Harbor Boulevard north, Fullerton Road north, and then Colima Road west to Azusa Avenue in [[Hacienda Heights, California|Hacienda Heights]]. Route 39 would then continue north on Azusa Avenue through the [[City of Industry, California|City of Industry]] to Interstate 10 in West Covina.<ref name=SB1318/><ref name="Whittier to I-10">{{Google maps|title=Driving directions from Whittier Blvd to I-10, via Harbor Blvd and Azusa Ave |url=https://www.google.com/maps/dir/N+Harbor+Blvd+%26+E+Whittier+Ave,+La+Habra,+CA+90631/34.0722482,-117.9075506/@34.010572,-117.9092076,13.67z/am=t/data=!4m19!4m18!1m15!1m1!1s0x80dd2aacd1b7f68d:0x21f2d91aafd87cb9!2m2!1d-117.9330543!2d33.9391834!3m4!1m2!1d-117.9250481!2d33.9906149!3s0x80c32a787e56db13:0x295988bdbcd62a0f!3m4!1m2!1d-117.9316698!2d33.9909965!3s0x80c2d585f752638f:0xcc81eae5e65e73b9!1m0!3e0 |access-date=April 16, 2021}}</ref> This segment however has yet to be officially designated by Caltrans.<ref>{{Cite web|url=https://www.cahighways.org/ROUTE039.html|title=California Highways (www.cahighways.org): Route 39|website=www.cahighways.org|access-date=2021-04-16}}</ref>

===Closed northern segment to Islip Saddle===
[[File:California-highway-39-south-closure.jpg|thumb|left|250px|SR&nbsp;39 closure in the [[San Gabriel Mountains]]]]
[[File:Islip-39.jpg|thumb|left|250px|Locked gate at northern terminus of Highway 39]]
[[Image:SR 39.svg|thumb|right|75px|SR-39 closed and incomplete section is between the black circles; the ca. 1967 reconstruction is shown in blue]]
After the road's completion, there were frequent closures along SR&nbsp;39 through the [[San Gabriel Valley]].<ref name="sgvt"/> During the winter of 1978, following a period of heavy rainfall, a [[rockslide]] damaged the northernmost {{convert|4.5|mi|km|adj=on}} stretch of SR&nbsp;39 near [[Crystal Lake Recreation Area|Crystal Lake]] to the road's terminus at [[California State Route 2|SR&nbsp;2]], at [[Islip Saddle]]. This resulted in the permanent closure of a {{convert|6.1|mi|km|abbr=on}} portion of SR&nbsp;39. In 1990, [[California Department of Transportation|Caltrans]] started maintaining the damaged sections by restoring [[Culvert|culverts]] and adding [[Berm|berms]]. The transit agency offered the closed portion of the road to the [[United States Forest Service]], which would only accept it if the road was returned to a wild state, a proposition considered to be more costly than reconstruction. During the [[1997–98 El Niño event]], heavy rainfall caused another rockslide that damaged sections still under construction. Following a Caltrans study, which determined that the road's reopening would not harm the environment, the closed portion was reopened as a [[Frontage road|service road]] and emergency route in February 2003. In June 2006, California authorized funding to conduct a three-year-long [[Environmental issues|environmental impact]] report. It was predicted that a reopened SR&nbsp;39 would reduce travel time by around 50% between [[Mount Waterman]] and [[Pasadena, California|Pasadena]], shortening the drive from about two hours to one. According to Caltrans, work could begin in 2009 on reconstruction, as well as the installation of safety features to prevent future slides from damaging the roadway.<ref name="sgvt">{{cite news|work=San Gabriel Valley Tribune|title=Closed by a slide nearly 40 years ago, when will a gap in a San Gabriel Mountains highway reopen?|author=Steve Scauzillo|date=October 15, 2017|accessdate=January 30, 2024|url=https://www.sgvtribune.com/2017/10/15/closed-by-a-slide-nearly-40-years-ago-when-will-a-gap-in-a-san-gabriel-mountains-highway-reopen/}}</ref><ref name="caltrans">{{cite web|date=April 27, 2016|title=San Gabriel Mountains National Monument Transportation Workshop|publisher=National Forest Foundation|url=https://www.nationalforests.org/assets/pdfs/2016-04-27-SCAG-SGM-Wkshp-FINAL-NoVideo.pdf}}</ref><ref name="pt06">{{cite news|title=Report to assess status of forest's Highway 39|date=June 10, 2006|author=Marianne Love|accessdate=January 30, 2024|url=https://www.presstelegram.com/2006/07/10/report-to-assess-status-of-forests-highway-39/|newspaper=Press-Telegram|location=Long Beach, California}}</ref><ref name="inside7">{{cite newsletter|last=Gish|first=Judy|date=October 2008|title=Highway 39: Caltrans vs. Mother Nature|url=http://www.dot.ca.gov/dist07/Publications/Inside7/story.php?id=283|url-status=dead|archive-url=https://web.archive.org/web/20170324153151/https://dot.ca.gov/dist07/Publications/Inside7/story.php?id=283|archive-date=March 24, 2017|work=Inside Seven|publisher=Caltrans}}</ref>

The environmental impact statement was completed in 2009, estimating the project's cost at $32&nbsp;million (over $45 million in 2023, adjusted for inflation).<ref>{{Cite web |title=Inflation Calculator {{!}} Federal Reserve Bank of Minneapolis |url=https://www.minneapolisfed.org/about-us/monetary-policy/inflation-calculator |website=Federal Reserve Bank of Minneapolis}}</ref> After the report was released, [[California Department of Fish and Wildlife|California Fish and Wildlife]] informed Caltrans that the road's reconstruction would negatively affect the subspecies of [[bighorn sheep]], the [[Desert bighorn sheep|Nelson's bighorn sheep]], a protected species in the state. In September 2011, Caltrans canceled plans to reopen the closed portion of SR&nbsp;39. By that time, the maintenance cost for that portion of the road was $1.3&nbsp;million per year.<ref name="sgvt"/> Thereafter, the agency tried to transfer responsibility for the entirety of SR&nbsp;39 north of postmile LA 17.81 (including the closed section) to either the [[U.S. Forest Service]] or [[Los Angeles County, California|Los Angeles County]], both of which declined for financial reasons, even though both the USFS and the county deemed the route "essential". Abandoning the route would not be cost-effective for Caltrans due to, among other reasons, federal environmental restoration requirements related to the presence of bighorn sheep.<ref name=walkingaway>{{cite news|last=Sahagun|first=Louis|title=Walking away from a highway|url=https://www.latimes.com/archives/la-xpm-2012-jan-29-la-me-caltrans-highway39-20120129-story.html|access-date=October 20, 2017|newspaper=Los Angeles Times|date=January 29, 2012|issn=0458-3035}}</ref> The proposal was abandoned after opposition by local residents and the county, as well as substantial legal pressure by the Forest Service, who threatened to enforce an old contract that requires Caltrans to completely deconstruct the highway should it refuse to maintain it.<ref name=walkingaway/> After lobbying from the cities of [[Azusa, California|Azusa]] and [[Glendora, California|Glendora]], and support from congresswoman [[Grace Napolitano]], Caltrans restarted plans in 2011 toward reopening the closed section of SR&nbsp;39. Benefits for the project included another evacuation route for Azusa.<ref>{{Cite news|title=Caltrans considering a new plan to reopen Highway 39 all the way to Wrightwood|author=Steve Scauzillo|date=October 17, 2016|accessdate=January 30, 2024|url=https://www.sgvtribune.com/2016/10/17/caltrans-considering-a-new-plan-to-reopen-highway-39-all-the-way-to-wrightwood/|work=San Gabriel Valley Tribune}}</ref> On December 15, 2022, Caltrans held a meeting to consider several proposed plans to reopen SR&nbsp;39. Proposals include a full restoration, minimal restoration for emergency services, a single-lane road, or recreational use. Under the recreational use proposal, the restored route would be closed to general traffic, but would allow for hiking, biking, and other recreational activities.<ref>{{Cite web |date=n.d. |title=SR-39 Reopening Project |url=https://dot.ca.gov/DOT/caltrans-near-me/district-7/district-7-projects/d7-sr39-reopening |url-status=live |archive-url=https://web.archive.org/web/20221219051611/https://dot.ca.gov/DOT/caltrans-near-me/district-7/district-7-projects/d7-sr39-reopening |archive-date=December 19, 2022 |website=Caltrans}}</ref>
{{Clear}}

==Major intersections==
{{CAinttop|post_ref=<br><ref name=trucklist /><ref name=bridgelog>{{cite web|title=California Log of Bridges on State Highways: District 7|website=[[Caltrans]]|publisher=California Department of Transportation|url=http://www.dot.ca.gov/hq/structur/strmaint/brlog/logpdf/logd07.pdf|archive-url=https://web.archive.org/web/20110524201943/http://www.dot.ca.gov/hq/structur/strmaint/brlog/logpdf/logd07.pdf|url-status=dead|date=January 2011|archive-date=May 24, 2011|accessdate=September 20, 2019}}</ref><ref>[[California Department of Transportation]], [http://traffic-counts.dot.ca.gov/2006all.htm All Traffic Volumes on CSHS] {{webarchive |url=https://web.archive.org/web/20110721033203/http://traffic-counts.dot.ca.gov/2006all.htm |date=July 21, 2011 }}, 2006</ref><ref>[[California Department of Transportation]], [http://traffic-counts.dot.ca.gov/1996all.htm All Traffic Volumes on CSHS] {{webarchive |url=https://web.archive.org/web/20110721033239/http://traffic-counts.dot.ca.gov/1996all.htm |date=July 21, 2011 }}, 1996 (the last year before it was updated to remove the relinquished part)</ref><ref name="Whittier to I-10"/>
}}
{{CAint
|county=Orange
|cspan=11
|county_note=ORA 0.00-17.26
|location=Huntington Beach
|postmile=0.00
|road={{Jct|state=CA|SR|1|name1=[[Pacific Coast Highway (California)|Pacific Coast Highway]]|city1=Long Beach|city2=Newport Beach}}
|notes=Southern terminus; former [[U.S. Route 101 Alternate (Los Angeles, California)|US 101 Alt.]]
}}
{{CAint
|location=Huntington Beach
|location2=Westminster
|postmile=5.80
|road={{Jct|state=CA|I|405|name1=[[San Diego Freeway]]|city1=Long Beach|city2=Irvine|city3=San Diego}}
|notes=I-405 exit 16; former [[California State Route 7 (1934–1964)|SR&nbsp;7]]
}}
{{CAint
|location=Westminster
|postmile=8.48
|road={{Jct|state=CA|SR|22|name1=[[Garden Grove Freeway]]|city1=Long Beach|city2=Santa Ana|city3=Orange}}
|notes=SR&nbsp;22 exit 8
}}
{{CAint
|location=Stanton
|location2=Anaheim
|postmile=11.6
|place=North end of state maintenance
}}
{{CAint
|location=Anaheim
|postmile=12.71
|road=Lincoln Avenue
|notes=Former [[List of deleted state highways in California#State Route 214|SR&nbsp;214]]
}}
{{CAint
|location=Buena Park
|lspan=6
|postmile=14.38
|road={{Jct|state=CA|SR|91|name1=[[Artesia Freeway]]|city1=Riverside|city2=Artesia|city3=Beach Cities}}
|notes=SR&nbsp;91 exit&nbsp;23B
}}
{{CAint
|postmile=15.07
|road={{Jct|state=CA|I|5|name1=[[Santa Ana Freeway]]|city1=Los Angeles|city2=Santa Ana|city3=San Diego}}
|notes=Interchange; south end of state maintenance; I-5 exit 116; access to and from northbound I-5 via Auto Center Drive
}}
{{CAint
|postmile=15.08
|road=Auto Center Drive
|notes=Formerly Manchester Avenue and former [[California State Route 42#History|SR&nbsp;10]]<ref>{{Cite web|last=Pak|first=Ellyn|date=2005-10-08|title=New street name isnt up their alley|url=https://www.ocregister.com/2005/10/08/new-street-name-isnt-up-their-alley/|access-date=2022-06-18|work=Orange County Register|language=en-US}}</ref>
}}
{{CAint
|postmile=15.57
|road={{Jct|state=CA|I|5|to1=yes|dir1=north}} / [[Artesia Boulevard]]
|notes=Alternate southbound access to I-5 north via Artesia Boulevard west<ref>{{cite web |url = https://www.google.com/maps/@33.874845,-117.9983088,3a,37.5y,170.12h,95.53t/data=!3m6!1e1!3m4!1sCux_n6b5rXFfcoobD-Jn5g!2e0!7i16384!8i8192|title = Beach Blvd - Buena Park, California|work = Google Street View |date = March 2021 |access-date = 24 July 2021 }}</ref>}}
{{CAint
|postmile=15.63
|road=Stage Road / Cascade Way
|notes=Stage Road was formerly [[California State Route 26 (1937–1964)|SR 26]]
}}
{{CAint
|postmile=16.38
|road={{Jctname|state=CA|CR|N8|noshield=y|name1=La Mirada Boulevard}} / Malvern Avenue
|notes=Southern terminus of Los Angeles County Route N8
}}
{{CAint
|county=Los Angeles
|county_note=LA D17.26-D18.44
|location=La Mirada
|postmile=D17.34
|road=[[Rosecrans Avenue]]
}}
{{CAint
|county=Orange
|cspan=3
|county_note=ORA 18.44-22.66
|location=La Habra
|lspan=3
|postmile=19.17
|road={{Jct|state=CA|SR|90|dir1=east|name1=[[Imperial Highway]]|city1=Brea|city2=Yorba Linda}}
|notes=Western terminus of [[California State Route 90|SR&nbsp;90]]; Imperial Highway was former SR&nbsp;90 west before being relinquished to local jurisdictions
}}
{{CAint
|postmile=20.72
|road={{Jct|state=CA|SR|72|dir1=north|name1=[[Whittier Boulevard]]|city1=Whittier}}
|notes=Former [[U.S. Route 101 in California|US 101]]; Whittier Boulevard was former SR&nbsp;72 south before being relinquished to local jurisdictions
}}
{{CAint
|postmile=22.66
|line=yes
|postmile2=0<ref group="N" name="not signed">Indicates that the mileage represents the distance along the traversable route under [[s:California Streets and Highways Code, Chapter 2, Article 3, Section 301-635#Route 39|California Streets and Highways Code §&nbsp;339&nbsp;(d)]] that [[Caltrans]] has not yet officially adopted.{{Disputed inline|Segment between La Habra and West Covina|date=April 2021}}</ref>
|road=[[Whittier Boulevard]] east / [[Harbor Boulevard]] south
|notes=North end of Orange County segment, as adopted and signed by [[Caltrans]];<ref name=SB1318/>{{Disputed inline|Segment between La Habra and West Covina|date=April 2021}} former [[U.S. Route 101 in California|US 101]] south; former SR&nbsp;72 south
}}
{{CAint
|county=Los Angeles
|cspan=12
|county_note=LA 10.70-44.40
|location=Rowland Heights
|postmile=4.0<ref group="N" name="not signed"/>
|road=Fullerton Road north / Colima Road east
|notes={{Disputed inline|Segment between La Habra and West Covina|date=April 2021}}
}}
{{CAint
|type=concur
|location=Hacienda Heights
|location2=City of Industry
|postmile=5.5<ref group="N" name="not signed"/>
|road=Colima Road west ({{jct|state=CA|noshield=yes|CR|N8}}) / Azusa Avenue south
|notes=South end of CR N8 overlap
}}
{{CAint
|location=City of Industry
|lspan=3
|postmile=5.9<ref group="N" name="not signed"/>
|road={{Jct|state=CA|SR|60|name1=[[Pomona Freeway]]|city1=Los Angeles|city2=Pomona}}
|notes=SR&nbsp;60 exit18
}}
{{CAint
|type=incomplete
|postmile=6.8<ref group="N" name="not signed"/>
|road=Chestnut Street
|notes=Interchange; northbound exit and entrance only
}}
{{CAint
|postmile=6.9<ref group="N" name="not signed"/>
|road=[[Valley Boulevard]]
|notes=Interchange; access via connector roads
}}
{{CAint
|location1=South San Jose Hills
|location2=Valinda
|location3=West Covina
|postmile=8.1<ref group="N" name="not signed"/>
|road=Temple Avenue
|notes=North end of state control, as defined by [[s:California Streets and Highways Code, Chapter 2, Article 3, Section 301-635#Route 39|Streets and Highways Code §&nbsp;339&nbsp;(d)]]<ref name=SB1318 />
}}
{{CAint
|type=concur
|location=West Covina
|lspan=2
|postmile=11.5<ref group="N" name="not signed"/>
|line=yes
|postmile2=10.71
|pmspan=2
|road={{Jct|state=CA|CR|N8|dir1=ends|noshield1=yes}}
|nspan=2
|notes=South end of Los Angeles County segment, as adopted and signed by [[Caltrans]];<ref name=SB1318 />{{Disputed inline|Segment between La Habra and West Covina|date=April 2021}}; north end of CR N8 overlap; I-10 exit&nbsp;36; former [[U.S. Route 99 in California|US&nbsp;99]]
}}
{{CAint
|mile=none
|road={{Jct|state=CA|I|10|name1=[[San Bernardino Freeway]]|city1=Los Angeles|city2=San Bernardino}}
|notes=none
}}
{{CAint
|location=Azusa
|lspan=2
|postmile=14.05
|road={{Jct|state=CA|I|210|name1=[[Foothill Freeway]]|city1=Pasadena|city2=San Bernardino}}
|notes=I-210 exit&nbsp;40
}}
{{CAint
|postmile=17.81
|place=Bridge over [[San Gabriel River (California)|San Gabriel River]]<br>South end of state maintenance
}}
{{Jctplace|exit
|state=CA
|location=none
|postmile=39.90
|place=Northbound road closure gate
}}
{{CAint
|location=Islip Saddle
|type=closed
|postmile=44.40
|road={{Jct|state=CA|SR|2|name1=[[Angeles Crest Highway]]|city1=La Cañada Flintridge|city2=Wrightwood}}
|notes=Closed; northern terminus
}}
{{Jctbtm|keys=closed,incomplete}}
{{reflist|group="N"}}

==See also==
*{{portal-inline|California Roads}}
*{{portal-inline|Greater Los Angeles}}

==References==
{{Reflist}}

==External links==
{{Attached KML|display=inline,title}}
{{commonscat}}
{{CASR external links|SR|39}}
* [http://www.aaroads.com/california/ca-039.html California @ AARoads.com - State Route 39]
* [http://www.cahighways.org/033-040.html#039 California Highways: SR 39]
* [http://www.socalregion.com/highways/la_highways/sr-39/ Michael Ballard on SR 39]
* [https://web.archive.org/web/20110725205548/http://www.crystallake.name/temp/SR-39DED01.23.09FINAL.SIGV2.pdf SR 39 EIR]

[[Category:State highways in California|039]]
[[Category:Roads in Orange County, California|State Route 039]]
[[Category:Roads in Los Angeles County, California|State Route 039]]
[[Category:Angeles National Forest]]
[[Category:Anaheim, California]]
[[Category:Azusa, California]]
[[Category:Buena Park, California]]
[[Category:Covina, California]]
[[Category:Transportation in Fullerton, California]]
[[Category:Garden Grove, California]]
[[Category:Huntington Beach, California]]
[[Category:La Habra, California]]
[[Category:La Mirada, California]]
[[Category:Stanton, California]]
[[Category:Westminster, California]]
[[Category:West Covina, California]]