View source for Interstate 10 in California

{{Short description|Interstate Highway in California}}
{{Redirect|Christopher Columbus Transcontinental Highway|the similarly named highway in New Jersey|Interstate 80 in New Jersey}}
{{Highway detail hatnote|Interstate 10}}
{{Use mdy dates|date=December 2022}}
{{Use American English|date=November 2023}}
{{Infobox road
| state = CA
| type = I
| route = 10
| alternate_name = Pearl Harbor Memorial Highway
| section = 310
| map = {{maplink-road|from=Interstate 10 in California.map}}
| map_custom = yes
| map_notes = I-10 highlighted in red
| length_mi = 242.54
| length_ref =<ref>{{Cite web |last=Starks |first=Edward |date=January 27, 2022 |title=Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways |url=https://www.fhwa.dot.gov/planning/national_highway_system/interstate_highway_system/routefinder/table01.cfm |access-date=November 19, 2023 |work=FHWA Route Log and Finder List |publisher=[[Federal Highway Administration]]}}</ref>
| established = August 7, 1947, by [[Federal Highway Administration|FHWA]]<ref name="cah Interstates"/><br />July 1, 1964, by [[Caltrans]]<ref name="cah 10">{{cite web |url= http://www.cahighways.org/009-016.html#010 |work= California Highways |title= Interstate 10 |access-date= November 29, 2011}}{{self-published source |date= November 2015}}</ref>
| direction_a = West
| terminus_a = {{Jct|state=CA|SR|1}} in [[Santa Monica, California|Santa Monica]]
| junction = <!-- PER WP:USRD/STDS No more than ten intersections!!! The junction list is limited ONLY to Interstates, US Highways and major state-route freeways.-->
*{{Jct|state=CA|I|405}} in [[Los Angeles, California|Los Angeles]]<!--1-->
*{{Jct|state=CA|I|110|SR|110}} in Los Angeles<!--2-->
*{{Jct|state=CA|I|5|US|101|SR|60}} in Los Angeles<!--3-->
*{{Jct|state=CA|I|710}} in [[Monterey Park, California|Monterey Park]]<!--4-->
*{{Jct|state=CA|I|605}} in [[Baldwin Park, California|Baldwin Park]]<!--5-->
*{{Jct|state=CA|I|15}} in [[Ontario, California|Ontario]]<!--6-->
*{{Jct|state=CA|I|215}} in [[Colton, California|Colton]]<!--7-->
*{{Jct|state=CA|SR|210}} in [[Redlands, California|Redlands]]<!--8-->
*{{Jct|state=CA|SR|60}} in [[Beaumont, California|Beaumont]]<!--9-->
*{{Jct|state=CA|US|95}} in [[Blythe, California|Blythe]]<!--10-->
| direction_b = East
| terminus_b = {{Jct|state=AZ|I|10|US|95}} at [[Arizona]] state line in [[Ehrenberg, Arizona|Ehrenberg, AZ]]
| counties = [[Los Angeles County, California|Los Angeles]], [[San Bernardino County, California|San Bernardino]], [[Riverside County, California|Riverside]]
| previous_type = SR
| previous_route = 9
| next_type = SR
| next_route = 11
}}
'''Interstate&nbsp;10''' ('''I-10''') is a transcontinental [[Interstate Highway System|Interstate Highway]] in the United States, stretching from [[Santa Monica, California]], to [[Jacksonville, Florida]]. The segment of I-10 in California, also known as the '''Pearl Harbor Memorial Highway''',<ref>{{cite book| url=https://dot.ca.gov/-/media/dot-media/programs/research-innovation-system-information/documents/place-names/web-2020-named-freeways-final-a11y.pdf | publisher=[[California Department of Transportation]] | title=2020 Named Freeways, Highways, Structures and Other Appurtenances in California | date=January 2021 | accessdate=February 18, 2024 | page=30}}</ref> runs east from Santa Monica through [[Los Angeles]], [[San Bernardino, California|San Bernardino]], and [[Palm Springs, California|Palm Springs]] before crossing into the state of [[Arizona]]. In the [[Greater Los Angeles]] area, it is known as the '''Santa Monica''' and '''San Bernardino freeways''', linked by a short [[concurrency (road)|concurrency]] on [[Interstate 5 in California|I-5]] ('''Golden State Freeway''') at the [[East Los Angeles Interchange]]. I-10 also has parts designated as the '''Rosa Parks''' and '''Sonny Bono Memorial freeways'''.<ref name="sbmf">{{cite news |last1=Trone |first1=Kimberly |title=Freeway Signs Pay Tribute to Bono |work=The Desert Sun |date=Jan 11, 2002 |page=B1}}</ref> Some parts were also formerly designated as the '''Christopher Columbus Transcontinental Highway.'''<ref>{{cite book|title=2004 Named Freeways, Highways, Structures and Other Appurtenances In California|url=http://www.dot.ca.gov:80/hq/tsip/HSEB/products/named_freeways_2004.pdf|publisher=California Department of Transportation|access-date=December 8, 2017|archive-url=https://web.archive.org/web/20051107090736/http://www.dot.ca.gov/hq/tsip/HSEB/products/named_freeways_2004.pdf|archive-date=November 7, 2005|pages=7–8|date=January 2004|url-status=live}}</ref> However, the [[California State Legislature]] removed this designation following the passage of a bill on August 31, 2022.<ref name="cr1">{{cite news |title=California Legislature Approves Removal of the Christopher Columbus Transcontinental Highway Designation of the I-10 Freeway |url=https://lanaic.lacounty.gov/california-legislature-approves-removal-of-the-christopher-columbus-transcontinental-highway-designation-of-the-i-10-freeway/ |access-date=September 1, 2022 |work=Los Angeles City County Native American Indian Commission |date=September 1, 2022}}</ref><ref name="cr2">{{cite news |title=Christopher Columbus' name to be removed from stretch of I-10 in LA |url=https://spectrumnews1.com/ca/la-west/politics/2022/09/01/christopher-columbus--name-to-be-removed-from-stretch-of-i-10-in-la |access-date=December 11, 2022 |work=Spectrum News 1 |publisher=[[Charter Communications]] |date=September 1, 2022}}</ref> I-10 is also known colloquially as "the 10" to [[Southern California]] residents {{Crossreference|(See also {{Section link|California English|Freeways}})}}.

The entirety of Interstate 10 in California is defined in the California ''Streets and Highways Code'' as '''Route 10.'''

==Route description==
<!--Route descriptions should be written in a present-day perspective. Any changes or significant events may be indicated in the History section.-->
{{Multiple image
| direction         = vertical
| width             = 250
| image1            = Interstate 10 in Los Angeles time-lapse.webm
| caption1          = Time-lapse video of a trip on I-10 from [[Baldwin Park, California|Baldwin Park]] to its western terminus in [[Santa Monica, California|Santa Monica]]
| image2            = McClure Tunnel.jpg
| caption2          = I-10 is signed as if it begins at [[McClure Tunnel|the McClure Tunnel]] in [[Santa Monica]], although it legally begins farther east at [[California State Route 1|the SR&nbsp;1]] interchange at [[Lincoln Boulevard (Los Angeles County)|Lincoln Boulevard]]
| image3            = Santamonicafreewaynearrobertson.jpg
| caption3          = A typical traffic jam on the Santa Monica Freeway, at 2:30&nbsp;pm on a Wednesday afternoon near [[Robertson Boulevard]]
| image4            = Downtown Los Angeles Skyline from 10 freeway.jpg
| caption4          = Downtown Los Angeles skyline as seen from the freeway. A slight (smaller than usual rush hour) traffic jam is ahead.
| image5            = Santamonicafreeway2.jpg
| caption5          = The [[Dosan Ahn Chang Ho Memorial Interchange]] (I-110), as seen by traffic going westbound on the Santa Monica
| image6            = i10-800.jpeg
| caption6          = Heavily defaced [[button copy]] sign marking an entrance to the Santa Monica Freeway in Downtown Los Angeles, 2005
| image7            = Interchangeofinterstate10and15.JPG
| caption7          = Interchange with the Ontario Freeway (I-15) as seen by westbound traffic on the San Bernardino Freeway
| image8            = I-10m 215 Interchange traffic, San Bernardino, CA.jpg
| caption8          = Heavy traffic from [[Downtown San Bernardino]] along the San Bernardino Freeway near the interchange with I-215
| image9            = CabazonDinosaurs-BuildingShapedLikeDinosaur.jpg
| caption9          = [[Cabazon Dinosaurs]] is a [[roadside attraction]] at the Main Street exit in [[Cabazon, California|Cabazon]]
| image10           = Eastbound Interstate 10 at SR 111.jpg
| caption10         = I-10 eastbound in [[Whitewater, California|Whitewater]] at the exit for [[California State Route 111|SR&nbsp;111]], looking east with the [[San Gorgonio Pass wind farm]] in the background. Note the overhead sign which gives "Indio [¶] Other Desert Cities" as the [[control city|control cities]]. 
| image11           = I-10 near Indio.jpg
| caption11         = I-10 eastbound near [[Indio, California|Indio]]
}}

The California ''Streets and Highways Code'' defines Route&nbsp;10 (I-10) from: <blockquote>(a) Route&nbsp;1 [<nowiki/>[[California State Route 1|State Route&nbsp;1]] (SR&nbsp;1)] in [[Santa Monica, California|Santa Monica]] to Route&nbsp;5 [I-5] near Seventh Street in Los Angeles.<br />(b) Route&nbsp;101 [<nowiki/>[[U.S. Route 101 in California|US Route&nbsp;101]] (US&nbsp;101)] near [[Mission Road]] in Los Angeles to the Arizona state line at the [[Colorado River]] via the vicinity of [[Monterey Park, California|Monterey Park]], [[Pomona, California|Pomona]], [[Colton, California|Colton]], [[Indio, California|Indio]], and [[Chiriaco Summit, California|Chiriaco Summit]] and via [[Blythe, California|Blythe]].<ref>{{cite web |url = https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=SHC&sectionNum=310. |title = Section 310 |work = Streets and Highways Code}}</ref></blockquote>

Because I-10 west of I-5 cannot access US&nbsp;101, and I-10 east of I-5 cannot access US&nbsp;101 southbound, signage instead directs motorists to the continuation of I-10 via I-5 between the [[East Los Angeles Interchange]] and the Santa Monica Freeway. The [[Federal Highway Administration]] (FHWA)'s Interstate Highway route logs, along with most maps, also indicate that I-10 is [[Concurrency (road)|cosigned]] along this segment,<ref>{{cite web |first= Kevin |last= Adderly |date= December 31, 2014 |url= https://www.fhwa.dot.gov/planning/national_highway_system/interstate_highway_system/routefinder/table01.cfm?redirect |title=Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways as of December 31, 2014 |work= Route Log and Finder List |publisher= Federal Highway Administration |access-date=December 6, 2015}}</ref> despite the legal definition. The short unsigned section of Route&nbsp;10 between Route&nbsp;5 and Route&nbsp;101, which was formerly defined as Route&nbsp;110 (signed as I-110) until 1968, carries overhead signage for I-10 eastbound and for US&nbsp;101 westbound.

I-10 is part of the [[California Freeway and Expressway System]]<ref name="cafes">{{CAFESystem}}</ref> and is part of the [[National Highway System (United States)|National Highway System]],<ref name=fhwa-nhs>{{FHWA NHS map|region=californiasouth|access-date=October 20, 2017}}</ref> a network of highways that are considered essential to the country's economy, defense, and mobility by the FHWA.<ref name=NHS-FHWA>{{FHWA NHS}}</ref> I-10 is eligible to be included in 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 Caltrans.<ref name="caltransscenic">{{Caltrans scenic|access-date=October 20, 2017}}</ref> The Santa Monica Freeway is I-10 from SR&nbsp;1 to I-5, as named by the State Highway Commission on April 25, 1957. The section between the [[Harbor Freeway|Harbor]] (I-110) and [[Interstate 405 (California)|San Diego]] (I-405) freeways is also signed as the Rosa Parks Freeway, after the [[Rosa Parks|African-American civil rights activist]]. The I-10 freeway is signed as the '''Christopher Columbus Transcontinental Highway''' in Santa Monica.<ref name="named">{{CA Named Freeways | pages=17–20}}</ref> The removal of this designation, however, may result in the eventual removal of this signage.<ref name="cr1"/><ref name="cr2"/>

===Santa Monica Freeway===
{{confused|Santa Monica Boulevard}}
The Santa Monica Freeway is the westernmost segment of I-10, beginning at the east end of the [[McClure Tunnel]] in [[Santa Monica, California|Santa Monica]] and ending southeast of [[Downtown Los Angeles]] at the [[East Los Angeles Interchange]].

I-10 begins its eastward journey in the city of Santa Monica after SR&nbsp;1 turns east through the McClure Tunnel. Note that the McClure Tunnel is part of SR&nbsp;1 in its entirety, and the western terminus of I-10 is to the east of the tunnel at 4th Street.<ref name=calnexus/> SR&nbsp;1 then exits onto Lincoln Boulevard and heads south while I-10 continues east. Soon after it enters the city of Los Angeles, I-10 has a four-level interchange with I-405. I-10 then continues through [[Sawtelle, Los Angeles|Sawtelle]], [[Rancho Park, Los Angeles|Rancho Park]], [[Cheviot Hills, Los Angeles|Cheviot Hills]], [[Beverlywood, Los Angeles|Beverlywood]], and Crestview in [[West Los Angeles]]; [[Lafayette Square, Los Angeles|Lafayette Square]] and [[Wellington Square, Los Angeles|Wellington Square]] in [[Mid City, Los Angeles|Mid City]]; and [[Arlington Heights, Los Angeles|Arlington Heights]], [[West Adams, Los Angeles|West Adams]], and [[Jefferson Park, Los Angeles|Jefferson Park]] into Downtown Los Angeles. On the western edge of downtown at the [[Dosan Ahn Chang Ho Memorial Interchange]], I-10 has an interchange with [[Interstate 110 (California)|I-110]] to the south and [[California State Route 110|SR&nbsp;110]] to the north. I-10 then travels along the southern edge of downtown to the East Los Angeles Interchange.<ref name="rmcn">{{Cite book |author= Rand McNally |year= 2008 |title= The Road Atlas |location= Chicago |publisher= Rand McNally |pages= 15, 17–19}}</ref><ref name="tglaor">{{Cite book |author= Thomas Brothers |publisher= Thomas Brothers |title= Los Angeles and Orange Counties Street Guide and Directory |year= 1999 |pages= 596–600, 631–641, 671}}</ref>

At the East Los Angeles Interchange, [[California State Route 60|SR&nbsp;60]] diverges east toward [[Riverside, California|Riverside]] and [[Pomona, California|Pomona]]. I-10 then turns north, running concurrently with [[Interstate 5 in California|I-5]] for approximately {{convert|1.5|mi|km}}. Then, I-10 heads east and merges with the traffic from the spur to US&nbsp;101 onto the San Bernardino Freeway.<ref name="rmcn" /><ref name="tglaor" />

The freeway is 14&nbsp;lanes wide (two local and five express lanes in each direction) from the Harbor Freeway ([[Interstate 110 and State Route 110 (California)|I-110]]) interchange to the Arlington Avenue offramp. Most of these lanes are full at peak travel times (even on Saturdays). The remainder of the freeway varies between eight and 10&nbsp;lanes in width. The whole freeway opened in 1965 with four to six lanes, with a formal dedication held in 1966.<ref>{{cite news |url=https://www.kcet.org/shows/departures/creating-the-santa-monica-freeway |title=Creating the Santa Monica Freeway |work=[[KCET]] |first=Nathan |last=Masters |date=September 10, 2012 |access-date=4 July 2016 |quote=Photo caption: Opening of the Interstate 10 freeway into Santa Monica on January 5, 1966.}}</ref>

While the construction of the [[Century Freeway]] several miles to the south reduced [[traffic congestion]] to a considerable amount by creating an alternate route from downtown to [[Los Angeles International Airport]], the Santa Monica Freeway is still one of the busiest freeways in the world. All three freeway-to-freeway interchanges along its length are notorious for their congestion and are routinely ranked among the top 10 most congested spots in the US.{{Citation needed|date=December 2007}}

Due to the high traffic volume, [[car accident]]s are so common that Caltrans has constructed special accident investigation sites separated from the freeway by fences. These enable the [[California Highway Patrol]] to quickly clear accidents from the through traffic lanes, and the fences reduce congestion by preventing [[rubbernecking]] (in which vehicles slow down so their occupants can watch the accident investigation).<ref>{{cite news |url=https://www.latimes.com/archives/la-xpm-2001-nov-27-me-8706-story.html |title=Freeway a Mess? Stop and Take a Look at Yourself |newspaper= [[Los Angeles Times]] |first=Cara Mia |last=Dimassa |date=November 27, 2001 |access-date=July 4, 2016}}</ref>

The Santa Monica Freeway is considered the border between [[Downtown Los Angeles|Downtown]] and [[South Los Angeles|South]] Los Angeles. Part of the freeway also skims the [[Byzantine-Latino Quarter, Los Angeles|Byzantine-Latino Quarter]].

===San Bernardino Freeway===
I-10 heads east from the [[East Los Angeles Interchange]] to [[Interstate 710 (California)|I-710]] in [[Monterey Park, California|Monterey Park]]. It then continues through the [[San Gabriel Valley]] suburbs of [[Alhambra, California|Alhambra]], [[Rosemead, California|Rosemead]], [[San Gabriel, California|San Gabriel]], [[El Monte, California|El Monte]], and [[Baldwin Park, California|Baldwin Park]] before intersecting with [[Interstate 605|I-605]]. It then travels through [[West Covina, California|West Covina]], briefly enters [[Covina, California|Covina]], and then travels up the Kellogg Hill into [[San Dimas, California|San Dimas]], where I-10 intersects with [[California State Route 57|SR&nbsp;57]] (formerly part of [[Interstate 210 (California)|I-210]]) and [[California State Route 71|SR&nbsp;71]] at the [[Kellogg Interchange]]. I-10 then heads east through Pomona and [[Claremont, California|Claremont]], leaving Los Angeles County to enter [[San Bernardino County, California|San Bernardino County]].<ref name="rmcn" /><ref name="tglaor" />

In San Bernardino County, I-10 travels through [[Montclair, California|Montclair]], [[Upland, California|Upland]], and [[Ontario, California|Ontario]], providing access to [[Ontario International Airport]]. I-10 then has a four-level interchange with [[Interstate 15 in California|I-15]] before traveling through [[Fontana, California|Fontana]], [[Rialto, California|Rialto]], and [[Colton, California|Colton]]. I-10 then intersects with [[Interstate 215 (California)|I-215]], where the San Bernardino Freeway ends, before briefly entering [[San Bernardino, California|San Bernardino]] city proper and traveling through [[Loma Linda, California|Loma Linda]] and [[Redlands, California|Redlands]]. In Redlands, I-10 intersects with the [[California State Route 210|SR&nbsp;210]] freeway (future I-210) and with [[California State Route 38|SR&nbsp;38]] before entering [[Yucaipa, California|Yucaipa]] and eventually [[Riverside County, California|Riverside County]].<ref name="rmcn" /><ref name="tgsbdriv">{{Cite book |author= Thomas Brothers |publisher= Thomas Brothers |title= San Bernardino and Riverside Counties Street Guide and Directory |year= 1999 |pages= 390–392, 601–608, 648–649, 689–690, 720–726, 756–758, 788, 819, 5410, 5471, 5491}}</ref>

In 2019, [[SBCTA]] planned to add two more interchanges in [[Fontana, California|Fontana]] at Beech and Alder Avenues to reduce congestion at the Sierra and Cherry avenue exits.<ref>https://www.gosbcta.com/wp-content/uploads/2019/09/I-10-Corridor-FINAL-ENGLISH-071019.pdf {{Bare URL PDF|date=May 2025}}</ref>

===Riverside County===
In Riverside County, I-10 goes through [[Calimesa, California|Calimesa]] before entering [[Beaumont, California|Beaumont]] and merging with the eastern end of SR&nbsp;60 (itself formerly the California segment of [[U.S. Route 60 in California|US&nbsp;60]]). In [[Banning, California|Banning]], I-10 has a diamond intersection with [[California State Route 243|SR&nbsp;243]] before passing through [[San Gorgonio Pass]] between the [[San Bernardino Mountains|San Bernardino]] and [[San Jacinto Mountains|San Jacinto]] mountains (where the vegetation makes a rapid change between Mediterranean and desert ecology) and entering [[Palm Springs, California|Palm Springs]]. The next {{convert|35|mi|km}} of the freeway, between [[California State Route 111|SR&nbsp;111]] and Dillon Road, was named the '''Sonny Bono Memorial Freeway''' in 2002.<ref name="sbmf"/> Although I-10 intersects with the northern terminus of SR&nbsp;111, the major artery to Palm Springs, it mostly bypasses the city, then connects to [[California State Route 62|SR&nbsp;62]], a major east–west route through the [[Colorado Desert]]. I-10 cuts through [[Cathedral City, California|Cathedral City]] and passes just outside the northern city limits of [[Rancho Mirage, California|Rancho Mirage]], [[Palm Desert, California|Palm Desert]], and [[La Quinta, California|La Quinta]] before entering [[Indio, California|Indio]]. I-10 then has an interchange in [[Coachella, California|Coachella]] with the northern end of the [[California State Route 86|SR&nbsp;86]] expressway, which also leads to SR&nbsp;111.

Several miles east and roughly halfway between Indio and [[Blythe, California|Blythe]], in the community of [[Desert Center, California|Desert Center]], I-10 intersects with [[California State Route 177|SR&nbsp;177]], a turnoff that leads to [[Desert Center Airport]] and connects to SR&nbsp;62. {{convert|3|mi|km|spell=In}} south of I-10 at the [[Wiley's Well]] exit, between Desert Center and Blythe, are the [[Chuckawalla Valley State Prison|Chuckawalla Valley]] and [[Ironwood State Prison|Ironwood]] state prisons. Near the Arizona state line, I-10 meets the terminus of [[California State Route 78|SR&nbsp;78]]. In the city of Blythe, I-10 runs concurrently with [[U.S. Route 95 in California|US&nbsp;95]] as both routes cross the [[Colorado River]] into [[Arizona]].<ref name="rmcn" /><ref name="tgsbdriv" />

The speed limit on the entire Riverside County segment of I-10 is {{convert|70|mph|km/h|abbr=on}}. I-10 westbound is usually signed as toward San Bernardino and/or Los Angeles in the [[Colorado Desert]]. Eastbound, in the San Gorgonio Pass, the signage indicates "Indio, Other Desert Cities" and indicates "Blythe" after Indio; the first sign for [[Phoenix, Arizona|Phoenix]] does not occur until Indio.<ref>{{cite web |author = ((Google)) |author-link = Google |url = https://www.google.com/maps/@33.9234103,-116.6877769,3a,30y,108.24h,93.46t/data=!3m6!1e1!3m4!1sEJxPmmu0SyBn76qKkqDQEg!2e0!7i16384!8i8192 |title = Eastbound I-10 approaching SR 111 |work = [[Google Street View]] |publisher = Google |date= September 2021 |access-date = May 12, 2022}}</ref><ref>{{cite web |author = ((Google)) |url = https://www.google.com/maps/@33.7378928,-116.2169425,3a,75y,111.51h,89.99t/data=!3m6!1e1!3m4!1smeyIDNDsgZDzK721SDJQ7Q!2e0!7i16384!8i8192 |title = Sonny Bono Mem Fwy (Eastbound I-10 near SR 86) |work = Google Street View |publisher = Google |date= September 2021 |access-date = May 12, 2022}}</ref>

==Express lanes==
There are two sections of [[high-occupancy toll]] (HOT) lanes along I-10, one in Los Angeles County and the other in San Bernardino County.

In Los Angeles County, the [[El Monte Busway]] is a grade-separated, shared-use HOT and [[express bus]] corridor running along the San Bernardino Freeway between Alameda Street near [[Union Station (Los Angeles)|Union Station]] in [[Downtown Los Angeles]] and a point west of [[Interstate 605|I-605]] in [[El Monte, California|El Monte]]. From Alameda Street to [[Interstate 710 (California)|I-710]], the El Monte Busway runs parallel to the north side of the freeway. After the I-710 interchange, these lanes merge back to the [[Median strip|median]] of I-10. Eastbound busses exit at [[El Monte station]] in El Monte before the HOT lanes for other vehicles end west of I-605.<ref name="LA Express Lanes">{{Cite web |title=Using Metro ExpressLanes |url=https://www.metroexpresslanes.net/how-it-works/using-metro-expresslanes/ |website=www.metroexpresslanes.net |publisher=Los Angeles County Metropolitan Transportation Authority |access-date=January 12, 2025}}</ref> The entire bus route of the El Monte Busway between Alameda Street and El Monte station's bus entrance at Santa Anita Avenue carries the hidden state designation of '''Route 10S''' (for "supplemental").<ref name="SR10S El Monte Busway"/>

The segment of HOT lanes in San Bernardino County opened in 2024, and runs between Monte Vista Avenue and Etiwanda Avenue at the [[Ontario, California|Ontario]]–[[Fontana, California|Fontana]] city limit.<ref name="SB Express Lanes">{{Cite web |title=Map & Pricing |url=https://www.sbexpresslanes.com/map-toll-rates/ |website=sbexpresslanes.com |publisher=San Bernardino County Transportation Authority|access-date=January 12, 2025}}</ref>

{{As of|2025|January}}, some toll polices differ between the counties. The HOT lanes in Los Angeles County are part of the [[Metro ExpressLanes]] project administered by the [[Los Angeles County Metropolitan Transportation Authority]] (LA Metro). The ones in San Bernardino County, branded as the San Bernardino Express Lanes, are operated by the [[San Bernardino County Transportation Authority]] (SBCTA) and use [[Transportation Corridor Agencies]] (TCA) as the processing partner. In both segments, solo drivers are tolled using a [[congestion pricing]] system based on the real-time levels of traffic. Carpools with three or more people and motorcycles are not charged. For two-person carpools using the Los Angeles County segment, they are charged the posted toll during the peak hours between 5:00&nbsp;am and 9:00&nbsp;am, and between 4:00&nbsp;pm and 7:00&nbsp;pm; no toll is charged during off-peak hours. Two-person carpools using the San Bernardino County segment do not receive any discount. All tolls are collected using an [[open road tolling]] system, and therefore there are no toll booths to receive cash. Each vehicle using the HOT lanes is required to carry a [[FasTrak]] ''Flex'' transponder with its switch set to indicate the number of the vehicle's occupants (1, 2, or 3+). Those with clean air vehicles need to apply to get discounts (15 percent in Los Angeles County and 10 percent in San Bernardino County). Solo drivers may also use the FasTrak standard tag without the switch.<ref name="LA Express Lanes"/><ref name="SB Express Lanes discounts">{{Cite web |title=Offers & Discounts |url=https://www.sbexpresslanes.com/offers-and-discounts/ |website=sbexpresslanes.com |publisher=San Bernardino County Transportation Authority|access-date=January 12, 2025}}</ref><ref>{{Cite web |title=Clean Air Vehicle Discount |url=https://www.metroexpresslanes.net/offers-discounts/clean-air-vehicle-discount/ |website=www.metroexpresslanes.net |publisher=Los Angeles County Metropolitan Transportation Authority |access-date=January 12, 2025}}</ref>

Drivers without any FasTrak tag will be assessed a toll violation regardless of whether they qualified for free. For those violators on the San Bernardino County segment, they will get TCA's benefit of being able to pay online 5 days after their trip without an additional toll violation penalty.<ref>{{Cite web |title=Resolve Violation |url=https://www.sbexpresslanes.com/notice-of-toll-evasion/ |publisher=San Bernardino County Transportation Authority|access-date=January 12, 2025}}</ref>

There are longer-term plans to have a {{convert|64|mi|km|adj=on}} continuous HOT lanes network between Alameda Street in Downtown Los Angeles and Ford Street in [[Redlands, California|Redlands]]. This expansion is planned in four phases. {{As of|2024}}, the proposed segment in Los Angeles County to convert the new HOV lanes to HOT lanes and bridge the gap between I-605 and Monte Vista Avenue is under environmental review,<ref name="LA Express Lanes extension">{{cite web |title=I-10 ExpressLanes Extension Project |url=https://www.metro.net/projects/i-10-extension/|publisher=Los Angeles County Metropolitan Transportation Authority|access-date=September 2, 2024}}</ref> the section from Etiwanda Avenue to Pepper Avenue in [[Colton, California|Colton]] is planned to break ground in 2025, and the segment from Pepper Avenue to Ford Street in Redlands is still in the planning stage.<ref name="SB Express Lanes extension">{{cite web |title=I-10 Express Lanes |url=https://www.gosbcta.com/project/i-10-corridor-project-phase-i/|publisher=San Bernardino County Metropolitan Transportation Authority|access-date=September 2, 2024}}</ref>

==History==
[[File:Northridge earthquake 10 frwy2.png|thumb|left|250px|I-10 after the [[1994 Northridge earthquake|1994 collapse]] ]]
What is now I-10 east of Los Angeles was generally part of the [[Atlantic and Pacific Highway]], one of many transcontinental [[national auto trail]]s. By 1926, when the [[US Numbered Highway]]s were assigned, the road across the desert east of [[Indio, California|Indio]] was [[Dirt road|unimproved]], while the road from Indio west to [[San Bernardino, California|San Bernardino]] (as well as various roads west to [[Los Angeles]]) was paved.<ref>{{cite map |url = http://members.cox.net/mkpl2/hist/26mp_sca.jpg |year = 1926 |author = Rand McNally |title = California |location = Chicago |publisher = Rand McNally |access-date = November 29, 2011 |url-status = dead |archive-url = https://web.archive.org/web/20110726002910/http://members.cox.net/mkpl2/hist/26mp_sca.jpg |archive-date = July 26, 2011}}</ref> In late 1926, [[U.S. Route 99 in California|US&nbsp;99]] was designated along the section of road from San Bernardino to Indio, where it turned south along present [[California State Route 86|SR&nbsp;86]] on the west side of the [[Salton Sea]].<ref>{{cite book |publisher = [[American Association of State Highway Officials]] |title = United States Numbered Highways |year = 1927}}{{full citation needed|date=November 2015}}</ref> West of San Bernardino, US&nbsp;99 ran to Los Angeles, [[Concurrency (road)|concurrent]] with [[U.S. Route 66 in California|US&nbsp;66]] (via [[Pasadena, California|Pasadena]]) before turning north; this route to Los Angeles is north of the later alignment of I-10.<ref>{{cite map |url = http://members.cox.net/mkpl2/hist/26mp_la.jpg |year = 1926 |author = Rand McNally |title = Los Angeles and Vicinity |location = Chicago |publisher = Rand McNally |access-date = November 29, 2011 |url-status = dead |archive-url = https://web.archive.org/web/20110525023948/http://members.cox.net/mkpl2/hist/26mp_la.jpg |archive-date = May 25, 2011}}</ref> The piece of this between San Bernardino and Indio was defined in 1915 as '''Legislative Route&nbsp;26''' ('''LR&nbsp;26'''). (It continued south from Indio via [[El Centro, California|El Centro]] to [[Heber, California|Heber]]. A 1931 extension took it south to [[Calexico, California|Calexico]] on present [[California State Route 111|SR&nbsp;111]].)<ref name="cah 1915-1932">{{cite web |url = http://www.cahighways.org/chrphas2.html |work = California Highways |title = Chronology of California Highways 1915–1932 |access-date = November 29, 2011}}{{self-published source|date= November 2015}}</ref>

The route from Indio via [[Mecca, California|Mecca]] to the [[Arizona]] state line near [[Blythe, California|Blythe]] was defined in 1919 as pre-1964 LR&nbsp;64. (Later extensions took LR&nbsp;64 west along present [[California State Route 74|SR&nbsp;74]]; a 1931 cutoff bypassed Mecca to the north.) LR&nbsp;26 was extended west from San Bernardino to Los Angeles in 1931, running along an alignment south of the existing US&nbsp;66/US&nbsp;99.<ref name="cah 1915-1932"/> Neither of these was a signed route until around 1932, when [[U.S. Route 60 in California|US&nbsp;60]] was extended west from Arizona to Los Angeles, running along LR&nbsp;64 to Indio, LR&nbsp;26 (with US&nbsp;99) to [[Beaumont, California|Beaumont]], pre-1964 LR&nbsp;19 to [[Pomona, California|Pomona]], and LR&nbsp;26 to Los Angeles. (The original alignment of LR&nbsp;26 ran roughly where [[California State Route 60|SR&nbsp;60]] now is west of Pomona, but an alignment close to present I-10 opened around 1934).{{citation needed|date=February 2018}}

Thus, in 1931, what is now I-10 east of Los Angeles had been defined as LR&nbsp;26 from Los Angeles to Indio and LR&nbsp;64 from Indio to Arizona. It was signed as US&nbsp;99 from San Bernardino to Indio, and US&nbsp;60 came along around 1932 from Los Angeles to Pomona and from Beaumont to Arizona. [[U.S. Route 70 in California|US&nbsp;70]] was extended west from Arizona {{Circa|1936}} along the whole route to Los Angeles,{{citation needed|date=February 2018}} and, between 1933 and 1942,{{citation needed|date=February 2018}} US&nbsp;99 moved from US&nbsp;66 to present I-10 between San Bernardino and Los Angeles, forming a three-way [[concurrency (road)|concurrency]] between Pomona and Los Angeles. Old alignments and names include [[Valley Boulevard]], Ramona Boulevard, and [[Garvey Avenue]].

I-10 holds the distinction of being the first freeway in Los Angeles. A {{convert|4|mi|km|spell=in|adj=on}} section of today's freeway was built between 1933 and 1935 at a cost of $877,000 (equivalent to ${{formatprice|{{Inflation|US-GDP|877000|1935}}}} in {{inflation-year|US-GDP}}{{inflation-fn|US-GDP}}). The "Ramona Boulevard" highway linked downtown Los Angeles to the communities of the southern San Gabriel Valley. The roadway, which opened on April 20, 1935, was dubbed the "Air Line route" and was seen as a major achievement in traffic design.<ref>{{cite news |url = http://www.kcet.org/updaily/socal_focus/history/la-as-subject/las-first-freeways.html |title = L.A.'s First Freeways |first = Nathan |last = Masters |publisher = KCET |date = August 15, 2012 |access-date = April 4, 2013}}</ref>

The route east from Los Angeles was added to the [[Interstate Highway System]] on August 7, 1957. It was assigned the I-10 number on August 14, 1957, and the short piece west of I-5 was approved as I-110 on November 10, 1958.<ref name="cah Interstates">{{cite web |url = http://www.cahighways.org/itypes.html |work = California Highways |title = Interstate Highway Types and the History of California's Interstates |access-date = November 29, 2011}}{{self-published source |date= November 2015}}</ref> By then, most if not all of the [[San Bernardino Freeway]] had been completed, and I-10 was signed along the existing [[freeway]] along with US&nbsp;70, US&nbsp;99, and part of US&nbsp;60. US&nbsp;70 and US&nbsp;99 were removed in the [[1964 state highway renumbering (California)|1964 renumbering]], while US&nbsp;60 was removed in 1972, leaving only I-10.

The part west of Downtown Los Angeles was [[California Legislative Route 173 (pre-1964)|pre-1964 LR&nbsp;173]], defined in 1933 from [[Santa Monica, California|Santa Monica]] to Downtown Los Angeles.<ref>{{cite web |url = http://www.cahighways.org/chrphas3.html |work = California Highways |title = Chronology of California Highways 1933–1946 |access-date = November 29, 2011}}{{self-published source|date=November 2015}}</ref> It was signed as [[California State Route 26 (pre-1964)|SR&nbsp;26]] by 1942, running primarily [[Olympic Boulevard (Los Angeles)|Olympic Boulevard]].{{citation needed|date=February 2018}} It was later replaced by the [[Santa Monica Freeway]] and added to the Interstate Highway System on September 15, 1955. It too was assigned the I-10 number on August 14, 1957.<ref name="cah Interstates"/> It was completed {{Circa|1964|lk=off}}<ref name=bridgelog>{{Caltrans bridgelog|date=July 2007}}</ref> and became I-10 in the 1964 renumbering.

Portions of the Santa Monica Freeway going over La Cienega Boulevard collapsed after the [[Northridge earthquake]] on January 17, 1994, and were rebuilt using new seismic-resistant bridge designs.<ref>{{cite journal |url = https://highways.dot.gov/public-roads/summer-1994/northridge-earthquake-progress-made-lessons-learned-seismic-resistant |journal = Public Roads |date = Summer 1994 |title = The Northridge Earthquake: Progress Made, Lessons Learned in Seismic-Resistant Bridge Design |publisher = [[Federal Highway Administration]] |access-date = November 29, 2011}}</ref>

The [[El Monte Busway]] was converted to [[HOT lane]]s in 2013 as part of the [[Metro ExpressLanes]] project.<ref>{{cite news |url = http://www.nbclosangeles.com/news/local/Metro-Express-Lanes-to-Open-On-San-Bernardino-10-Freeway--192563661.html |title = Metro ExpressLanes to Open on San Bernardino (10) Freeway |publisher = [[KNBC-TV]] |location = Los Angeles |date = February 22, 2013 |access-date = February 28, 2013}}</ref>

On July 19, 2015, a bridge carrying the eastbound lanes of I-10 near [[Desert Center, California|Desert Center]] collapsed from floodwater from the remnants of [[Hurricane Dolores (2015)|Hurricane Dolores]], trapping a vehicle.<ref>{{cite news |last1 = Brunell |first1 = Natalie |last2 = Terlecky |first2 = Megan |title = Bridge Collapses on I-10 in Desert Center, Traps Vehicle |publisher = [[KESQ-TV]] |location = Palm Springs, CA |date = July 19, 2015 |url = http://www.kesq.com/news/bridge-collapses-on-i10-in-desert-center-traps-vehicle/34247286 |access-date = July 19, 2015 |archive-url = https://web.archive.org/web/20150721235047/http://www.kesq.com/news/bridge-collapses-on-i10-in-desert-center-traps-vehicle/34247286 |archive-date = July 21, 2015 |url-status = dead}}</ref><ref>{{cite news |url = http://abc7.com/news/bridge-over-10-fwy-east-of-coachella-collapses-into-flood-waters/865077/ |title = Bridge over 10 Fwy East of Coachella Collapses into Flood Waters |location = Los Angeles |publisher = [[KABC-TV]] |date = July 20, 2015 |access-date = July 20, 2015}}</ref>

Shortly after midnight of November 11, 2023, a mile-long ({{Convert|1|mi|km|abbr=on|disp=output only}}) segment of the freeway in Downtown Los Angeles between [[Alameda Street]] and Santa Fe Avenue suffered significant damage due to a fire at a [[pallet]] yard underneath the freeway. The fire melted the freeway's guardrails and damaged the supporting concrete columns.<ref name="LAT-11-11">{{Cite web |last = Vives |first = Ruben |date = November 11, 2023 |title = 10 Freeway in downtown L.A. shut down indefinitely following fire |url = https://www.latimes.com/california/story/2023-11-11/10-freeway-shut-down-indefinitely-in-downtown-los-angeles-following-fire |access-date = November 12, 2023 |website = Los Angeles Times}}</ref><ref>{{Cite web |last = Chow |first = Vivian |date = November 11, 2023 |title = Massive fire leads to indefinite closure of 10 Freeway in downtown Los Angeles |url = https://ktla.com/news/local-news/state-of-emergency-declared-after-fire-shuts-down-10-freeway/ |access-date = November 12, 2023 |publisher = KTLA}}</ref> The ''[[Los Angeles Times]]'' reported a couple of days later that "sanitizer accumulated during the height of the [[COVID-19 pandemic]] was stored under the overpass and helped fuel the flames".<ref>{{cite news |first1 = Nathan |last1 = Solis |first2 = Ruben |last2 = Vives |first3 = Richard |last3 = Winton |first4 = Brennon |last4 = Dixson |first5 = Ashley |last5 = Ahn |url = https://www.latimes.com/california/story/2023-11-13/10-freeway-closure-snarls-commute-after-huge-downtown-los-angeles-fire |title = Arson is behind the massive fire that shut down the 10 Freeway, officials say |work = Los Angeles Times |date = November 13, 2023 |archive-url = https://web.archive.org/web/20231114002331/https://www.latimes.com/california/story/2023-11-13/10-freeway-closure-snarls-commute-after-huge-downtown-los-angeles-fire |archive-date = November 14, 2023}}</ref> Governor [[Gavin Newsom]] declared a [[state of emergency]] in response to the fire; the freeway was reopened after eight days, far ahead of the original five-week estimate.<ref>{{cite news |url=https://laist.com/news/transportation/the-10-is-closed-downtown-due-to-huge-pallet-yard-fire | title=The 10 Freeway Is Now Open Again. Repairs Done Weeks Ahead Of Original Timeline |author1=Yusra Farzan |author2=Kevin Tidmarsh |author3=Makenna Sievertson |author4=Mariana Dale |author5=Frank Stoltze |date=November 20, 2023 |publisher=[[LAist]]}}</ref>

===Juan Bautista de Anza National Historic Trail===
The I-10 is part of the auto tour route of the [[Juan Bautista de Anza National Historic Trail]], a [[National Park Service]] unit in the US national [[National Historic Trail|Historic]] and [[National Millennium Trail|Millennium]] trail programs. In 2005, [[California Department of Transportation|Caltrans]] began posting signs on roads that overlap with the historic 1776 [[Juan Bautista de Anza]] trail route, so that California drivers can now follow the trail.

==Exit list==
{{CAinttop|exit
|length_ref=<ref name=calnexus/>
|exit_ref=<ref name=calnexus>{{cite web |date= March 17, 2020 |first= Christian |last= Clarion |publisher= [[California Department of Transportation]] |work= [[California Numbered Exit Uniform System]] |url= https://dot.ca.gov/-/media/dot-media/programs/safety-programs/documents/exit/calnexus-i-10-03-2020-a11y.pdf |title= Interstate 10 Freeway Interchanges |access-date= May 8, 2022}}</ref>
}}
{{CAint|exit
|type=concur
|county=Los Angeles
|cspan=85
<!--|county_note=LA R2.16–48.27-->
|location=Santa Monica
|lspan=6
|mile=0.00
|mspan=2
|exit=
|road={{Jct|state=CA|SR|1|name1=Pacific Coast Highway|dir1=north|city1=Oxnard}}
|notes=Western end of SR 1 [[concurrency (road)|concurrency]]; former US 101 Alternate; western end of I-10/Santa Monica Freeway
}}
{{CAint|exit
|type=incomplete
|mile=none
|exit=1A
|road=4th Street / 5th Street
|notes=Westbound exit and eastbound entrance
}}
{{CAint|exit
|type=concur
|mile=0.96
|exit=1B
|espan=2
|mspan=2
|road={{Jct|state=CA|road|[[Lincoln Boulevard (Southern California)|Lincoln Boulevard]]|to2=to|SR|1|dir2=south}}
|notes=Eastern end of SR 1 concurrency; signed as exit&nbsp;1A eastbound; former [[California State Route 2|SR 2]] / [[U.S. Route 66 in California|US&nbsp;66]] / US 101 Alternate
}}
{{CAint
|type=incomplete
|mile=none
|road=20th Street
|notes=Eastbound exit and westbound entrance
}}
{{CAint|exit
|type=incomplete
|mile=2.08
|exit=1C
|road=Cloverfield Boulevard
|notes=Westbound exit and eastbound entrance
}}
{{CAint|exit
|mile=2.30
|exit=2A
|road=Centinela Avenue
|notes=Signed as exit 2 eastbound
}}
{{CAint|exit
|location=Los Angeles
|lspan=33
|type=incomplete
|mile=2.35
|exit=2B-C
|road=[[Bundy Drive]]
|notes=Westbound exits and eastbound entrance; signed as exits 2B (south) and 2C (north)
}}
{{CAint|exit
|mile=3.11
|exit=3A
|road={{Jct|state=CA|I|405|dir1=north|name1=[[San Diego Freeway]]|city1=Sacramento}}
|notes=I-405 north exit 53B, south exit 53
|nspan=2
}}
{{CAint|exit
|mile=3.29
|exit=3B
|road={{Jct|state=CA|I|405|dir1=south|name1=[[San Diego Freeway]]|location1=[[Los Angeles International Airport|LAX Airport]]|city2=Long Beach|extra=airport}}
|notes=none
}}
{{CAint|exit
|mile=4.24
|exit=4
|road=Overland Avenue / National Boulevard
|notes=National Boulevard not signed westbound
}}
{{CAint|exit
|type=incomplete
|mile=5.05
|exit=5
|road=National Boulevard
|notes=Westbound exit and eastbound entrance
}}
{{CAint|exit
|mile=5.76
|exit=6
|road=[[Robertson Boulevard]]&nbsp;– [[Culver City, California|Culver City]]
}}
{{CAint|exit
|mile=6.81
|exit=7A
|road={{Jct|state=CA|SR|187|name1=[[Venice Boulevard]]}} / [[La Cienega Boulevard]]
|notes= SR&nbsp;187&nbsp;/ Venice Boulevard not signed eastbound
}}
{{CAint|exit
|mile=7.00
|exit=7B
|road=[[Fairfax Avenue]] / [[Washington Boulevard (Los Angeles)|Washington Boulevard]]
|notes=Washington Boulevard not signed eastbound 
}}
{{CAint|exit
|mile=8.27
|exit=8
|road=[[La Brea Avenue]]
}}
{{CAint|exit
|mile=9.23
|exit=9
|road=[[Crenshaw Boulevard]]
}}
{{CAint|exit
|mile=10.16
|exit=10
|road=Arlington Avenue
}}
{{CAint|exit
|mile=10.66
|exit=11
|road=[[Western Avenue (Los Angeles)|Western Avenue]] / [[Normandie Avenue]]
}}
{{CAint|exit
|mile=11.64
|mile2=12.25
|exit=12
|road=[[Vermont Avenue]] / Hoover Street
}}
{{CAint|exit
|mile=12.68
|exit=13A
|road={{Jct|state=CA|I|110|dir1=south|name1=[[Harbor Freeway]] south|road|Grand Avenue|city1=San Pedro|location2=[[Los Angeles Convention Center|Convention Center]]}}
|nspan=2
|notes=[[Dosan Ahn Chang Ho Memorial Interchange]]; signed as exit 13 westbound; Grand Avenue is not accessible westbound; Pico Boulevard is not accessible eastbound; I-110 exit 21
}}
{{CAint|exit
|mile=12.73
|exit=13B
|road={{Jct|state=CA|SR|110|dir1=north|name1=[[Harbor Freeway]] north|road|[[Pico Boulevard]]|city1=Pasadena|location2=[[Downtown Los Angeles|Downtown]]|location3=[[Los Angeles Convention Center|Convention Center]]}}
|notes=none}}
{{CAint|exit
|type=incomplete
|mile=13.64
|mspan=2
|exit=14A
|espan=2
|road=Maple Avenue
|notes=Eastbound exit and westbound entrance
}}
{{CAint
|type=incomplete
|mile=none
|road=[[Los Angeles Street]]&nbsp;– [[Convention Center (Los Angeles)|Convention Center]]
|notes=Westbound exit and eastbound entrance
}}
{{CAint|exit
|type=incomplete
|mile=14.22
|exit=14B
|road=[[San Pedro Street]]
|notes=No westbound entrance
}}
{{CAint|exit
|mile=14.55
|exit=15A
|road=[[Central Avenue (Los Angeles)|Central Avenue]]
}}
{{CAint|exit
|mile=15.19
|exit=15B
|road=[[Alameda Street]]
}}
{{CAint|exit
|mile=15.55
|exit=16A
|road=Mateo Street / Santa Fe Avenue
}}
{{CAint|exit
|type=incomplete
|mile=16.23
|mspan=5
|exit=16B
|espan=2
|road={{Jct|state=CA|SR|60|name1=Pomona Freeway|dir1=east|city1=Pomona}}
|nspan=2
|notes=Eastbound exit and westbound entrance; western end of [[East Los Angeles Interchange]]; SR 60 west exit 1A; I-5 north exit 134A
}}
{{CAint
|type=incomplete
|mile=none
|road={{Jct|state=CA|I|5|name1=[[Santa Ana Freeway]]|dir1=south|city1=Santa Ana}}
|notes=none
}}
{{CAint|exit
|type=incomplete
|mile=none
|exit=—
|road=Boyle Avenue
|notes=Eastbound exit only}}
{{CAint|exit
|type=concur
|mile=none
|exit=16B
|espan=2
|road={{Jct|state=CA|I|5|dir1=south|name1=[[Santa Ana Freeway]]|road|Soto Street|city1=Santa Ana}}
|nspan=2
|notes=Western end of I-5 overlap; eastern end of [[East Los Angeles Interchange]] proper; westbound exit and eastbound entrance; eastern end of Santa Monica Freeway; SR 60 west exit 1E
}}
{{CAint
|type=incomplete
|mile=none
|road={{Jct|state=CA|SR|60|name1=Pomona Freeway|dir1=east|city1=Pomona}}
|notes=none
}}
{{CAint|exit
|mile=
|exit=135A<ref name="I-5" group=lower-alpha>Exit number follows I-5 rather than I-10.</ref>
|road=Fourth Street
}}
{{CAint|exit
|type=incomplete
|mile=
|exit=135B<ref name="I-5" group=lower-alpha/>
|road=[[Cesar Chavez Avenue]]
|notes=Eastbound exit and westbound entrance; formerly Brooklyn Avenue
}}
{{CAint|exit
|type=incomplete
|mile=19.00
|mile2=19.07
|mspan=4
|exit=19A
|road=State Street
|notes=Westbound left exit and eastbound entrance
}}
{{CAint|exit
|type=concur
|mile=none
|exit=19B
|espan=2
|road={{Jct|state=CA|I|5|name1=Golden State Freeway|dir1=north|city1=Sacramento}}
|notes=Eastern end of I-5 overlap; 5-10 Split portion of the East Los Angeles Interchange; I-5 north exit 135C, south exit 135B
}}
{{CAint
|type=incomplete
|mile=none
|road={{Jct|state=CA|road|[[#Spur to US 101|San Bernardino Freeway spur]]|to2=to|US|101|dir2=north|name2=[[Santa Ana Freeway]]|city1=Los Angeles}}
|notes=Westbound left exit and eastbound entrance; US 101 exit 1D
}}
{{CAint|exit
|type=incomplete
|mile=none
|exit=19C
|road=[[Soto Street]]
|notes=No eastbound entrance; signed as exit 19 eastbound
}}
{{CAint|exit
|type=incomplete
|mile=
|exit=—
|road=Marengo Street
|notes=Eastbound entrance only}}
{{CAint|exit
|location=East Los Angeles
|lspan=2
|type=incomplete
|mile=19.59
|exit=20A
|road=City Terrace Drive
|notes=Eastbound exit and westbound entrance}}
{{CAint|exit
|mile=20.24
|exit=20B
|road=Eastern Avenue
|notes=Westbound access is part of the I-710 exit; serves [[California State University, Los Angeles|CSU Los Angeles]]}}
{{CAint|exit
|location=Monterey Park
|mile=20.77
|exit=21
|road={{Jct|state=CA|I|710|name1=Long Beach Freeway|city1=Long Beach|road|[[Valley Boulevard]]}}
|notes=Eastbound exit provides direct access to Ramona Road; I-710 north exit 22, south exits 22A-B}}
{{CAint|exit
|location=Alhambra
|lspan=5
|type=etc
|mile=
|exit=—
|road={{Jct|state=CA|road|[[El Monte Busway]] (SR 10S west)<ref name="SR10S El Monte Busway">{{cite web|url=https://postmile.dot.ca.gov/PMQT/PostmileQueryTool.html?type=C&mode=L&lat=34.055404&long=-118.238054&lat2=34.071105&long2=-118.042202|title=Route 10S: Postmile LA 16.968 to LA 28.613|website=Postmile Services Postmile Query Tool|publisher=Caltrans|accessdate=March 19, 2025}}</ref>|to2=y|US|101|dir2=north|road|[[Alameda Street]]}}
|notes=Express Lanes access only; westbound exit and eastbound entrance}}
{{CAint|exit
|type=etc
|mile=
|exit=—
|road=I-10 LA Metro Express Lanes
|notes=Westernmost access point from mainline I-10}}
{{CAint|exit
|mile=21.70
|exit=22
|road=Fremont Avenue&nbsp;– [[South Pasadena, California|South Pasadena]]
|notes=}}
{{CAint|exit
|mile=22.72
|exit=23A
|road=[[Atlantic Boulevard (Los Angeles County)|Atlantic Boulevard]]&nbsp;– [[Monterey Park, California|Monterey Park]]
|notes=}}
{{CAint|exit
|mile=23.38
|exit=23B
|road=[[Garfield Avenue (Los Angeles County)|Garfield Avenue]]
|notes=}}
{{CAint|exit
|location1=Alhambra
|location2=San Gabriel
|location3=Monterey Park
|mile=24.22
|exit=24
|road=New Avenue
|notes=}}
{{CAint|exit
|type=etc
|location1=San Gabriel
|location2=Rosemead
|lspan=3
|mile=24.72
|mspan=2
|exit=—
|road=Del Mar Avenue
|notes=Express Lanes access only; eastbound exit and westbound entrance}}
{{CAint|exit
|mile=none
|exit=25A
|road=Del Mar Avenue
|notes=Previously exit 25B}}
{{CAint|exit
|mile=25.23
|exit=25B
|road=San Gabriel Boulevard
|notes=}}
{{CAint|exit
|location=Rosemead
|mile=25.73
|exit=26A
|road=Walnut Grove Avenue
|notes=}}
{{CAint|exit
|location1=Rosemead
|location2=El Monte
|lspan=4
|mile=26.25
|exit=26B
|road={{Jct|state=CA|SR|19|name1=[[Rosemead Boulevard]]|city1=Pasadena}}
|notes=Eastbound exit provides direct access to Flair Drive}}
{{CAint|exit
|mile=27.35
|mspan=3
|exit=27
|espan=2
|road=Temple City Boulevard
|notes=Westbound signage; previously exit 28
}}
{{CAint
|mile=none
|road=Baldwin Avenue
|notes=Eastbound signage
}}
{{CAint|exit
|type=etc
|mile=none
|exit=—
|road=[[El Monte Busway]] (SR 10S east)<ref name="SR10S El Monte Busway"/> to [[El Monte station]]
|notes=Buses only via Express Lanes; eastbound exit and westbound entrance
}}
{{CAint|exit
|location=El Monte
|lspan=6
|mile=28.06
|exit=28
|road=Santa Anita Avenue
|notes=Previously exit 29}}
{{CAint|exit
|mile=28.89
|exit=29A
|road=Peck Road South
|notes=}}
{{CAint|exit
|mile=28.94
|mile2=29.22
|exit=29B
|road=Peck Road North, [[Valley Boulevard]]
|notes=Westbound exits signed as 29B (Valley Boulevard) and 29C (Peck Road North)}}
{{CAint|exit
|type=etc
|mile=
|exit=—
|road=[[El Monte Busway|I-10 LA Metro Express Lanes]]
|notes=Eastern end of Express Lanes
}}
{{CAint|exit
|type=unbuilt
|mile=
|exit=—
|road=I-10 LA Metro Express Lanes (eastern expansion)
|notes=Western end of proposed expansion<ref name="LA Express Lanes extension"/>
}}
{{CAint|exit
|type=incomplete
|mile=29.97
|exit=30
|road=[[Garvey Avenue]], Durfee Avenue
|notes=Westbound exit and eastbound entrance}}
{{CAint|exit
|location=Baldwin Park
|lspan=6
|mile=30.54
|exit=31A
|road={{Jct|state=CA|I|605|dir1=south|name1=San Gabriel River Freeway}}
|notes=Signed as exit 31A westbound; I-605 exit 22
|nspan=2
}}
{{CAint|exit
|mile=30.59
|exit=31B
|road={{Jct|state=CA|I|605|dir1=north|name1=San Gabriel River Freeway}}
|notes=none
}}
{{CAint|exit
|type=incomplete
|mile=30.59
|mile2=30.93
|exit=31C
|road=Frazier Street
|notes=Signed as exit&nbsp;31B westbound; no eastbound entrance}}
{{CAint|exit
|mile=31.61
|exit=32A
|road=Baldwin Park Boulevard
|notes=}}
{{CAint|exit
|type=incomplete
|mile=32.05
|exit=32B<!--former 33A-->
|road=Francisquito Avenue&nbsp;– [[La Puente, California|La Puente]]
|notes=No eastbound entrance; previously exit 33A}}
{{CAint|exit
|mile=32.74
|exit=33
|road=Puente Avenue&nbsp;– [[Industry, California|Industry]]
|notes=}}
{{CAint|exit
|location=West Covina
|lspan=7
|mile=33.85
|exit=34A
|road=Pacific Avenue, West Covina Parkway
|notes=Signed as exit&nbsp;34 eastbound}}
{{CAint|exit
|type=incomplete
|mile=34.24
|exit=34B
|road=Sunset Avenue
|notes=Westbound exit only}}
{{CAint|exit
|mile=34.78
|exit=35
|road=Vincent Avenue
|notes=}}
{{CAint|exit
|mile=35.89
|exit=36
|road={{Jct|state=CA|SR|39|name1=[[Azusa Avenue]]}}
|notes=}}
{{CAint|exit
|mile=36.87
|exit=37A
|road=Citrus Street
|notes=}}
{{CAint|exit
|mile=37.40
|exit=37B
|road=Barranca Street
|notes=}}
{{CAint|exit
|mile=37.90
|exit=38A
|road=Grand Avenue
|notes=}}
{{CAint|exit
|location1=West Covina
|location2=Covina
|mile=38.39
|exit=38B
|road=Holt Avenue
|notes=}}
{{CAint|exit
|location1=Covina
|location2=San Dimas
|mile=39.85
|exit=40
|road=Via Verde
|notes=}}
{{CAint|exit
|location=Pomona
|type=incomplete
|mile=41.41
|exit=41
|road=Kellogg Drive&nbsp;– [[California State Polytechnic University, Pomona|Cal Poly University]]
|notes=No eastbound entrance}}
{{CAint|exit
|location1=Pomona
|location2=San Dimas
|lspan=2
|mile=41.83
|exit=42A
|road={{Jct|state=CA|SR|57|name1=Orange Freeway|to2=to|I|210|name2=Foothill Freeway|city1=Santa Ana}}
|notes=Western end of [[Kellogg Interchange]]; signed as exit&nbsp;42 westbound; SR&nbsp;57 north is former [[Interstate 210 (California)|I-210]]; SR 57 north exit 21, south exits 22A-B}}
{{CAint|exit
|type=incomplete
|mile=42.07
|exit=42B
|road={{Jct|state=CA|SR|71|dir1=south|name1=Chino Valley Freeway|road|Campus Drive|city1=Corona}}
|notes=Eastbound exit and westbound entrance; eastern end of [[Kellogg Interchange]]; SR 71 north exit 15}}
{{CAint|exit
|location=Pomona
|lspan=4
|mile=43.05
|mile2=43.58
|exit=44
|road=Fairplex Drive, Dudley Street
|notes=Signed as exits 43 (Fairplex Drive) and 44 (Dudley Street) eastbound; Fairplex Drive was formerly Ganesha Boulevard;<ref>{{cite news |url = https://www.latimes.com/archives/la-xpm-1990-03-22-ga-849-story.html |title = Pomona: Ganesha Blvd. Renamed |work = [[Los Angeles Times]] |date = 22 March 1990  |access-date = 20 March 2021}}</ref> serves [[Fairplex]]}}
{{CAint|exit
|type=incomplete
|mile=44.67
|exit=45A<!--former 45-->
|road=White Avenue
|notes=Eastbound exit and westbound entrance; former exit 45}}
{{CAint|exit
|mile=45.12
|exit=45B
|road=Garey Avenue, Orange Grove Avenue
|notes=Signed as exit&nbsp;45 westbound; Orange Grove Avenue not signed eastbound}}
{{CAint|exit
|mile=45.80
|exit=46
|road=Towne Avenue
|notes=}}
{{CAint|exit
|location=Claremont
|mile=47.13
|exit=47
|road=Indian Hill Boulevard
|notes=}}
{{CAint|exit
|county=San Bernardino
<!--|county_notes=SBD 0.00–R39.16-->
|cspan=44
|location=Montclair
|lspan=4
|type=unbuilt
|mile=
|exit=—
|road=I-10 LA Metro Express Lanes (eastern expansion)
|notes=Western end of proposed expansion<ref name="LA Express Lanes extension"/>
}}
{{CAint|exit
|type=etc
|mile=
|exit=—
|road=I-10 San Bernardino Express Lanes
|notes=Western end of express lane; opened in 2024<ref name="SB Express Lanes"/>
}}
{{CAint|exit
|mile=48.34
|exit=48
|road=Monte Vista Avenue
|notes=}}
{{CAint|exit
|mile=48.89
|exit=49
|road=Central Avenue
|notes=}}
{{CAint|exit
|location1=Ontario
|location2=Upland
|lspan=2
|mile=50.03
|exit=50
|road=Mountain Avenue&nbsp;– [[Mount San Antonio|Mount Baldy]]
|notes=}}
{{CAint|exit
|mile=51.13
|exit=51
|road={{Jct|state=CA|SR|83|name1=Euclid Avenue|city1=Ontario|city2=Upland}}
|notes=}}
{{CAint|exit
|location=Ontario
|lspan=8
|mile=52.90
|exit=53
|road=4th Street
|notes=}}
{{CAint|exit
|mile=53.76
|exit=54
|road=Vineyard Avenue
|notes=}}
{{CAint|exit
|type=incomplete
|mile=54.82
|mspan=2
|exit=55A
|road=[[Holt Boulevard]]
|notes=Westbound exit and eastbound entrance; former [[U.S. Route 99|US 99]] north}}
{{CAint|exit
|mile=none
|exit=55B
|road={{jct|extra=airport}} Archibald Avenue&nbsp;– [[LA/Ontario International Airport|Ontario Airport]]
|notes=[[Single-point urban interchange]], signed as exit&nbsp;55 eastbound}}
{{CAint|exit
|mile=55.83
|exit=56
|road=Haven Avenue
|notes=}}
{{CAint|exit
|mile=56.84
|exit=57
|road=Milliken Avenue
|notes=}}
{{CAint|exit
|mile=57.60
|exit=58A
|road={{Jct|state=CA|I|15|dir1=north|name1=Ontario Freeway|city1=Barstow}}
|notes=Signed as exit 58 westbound; I-15 exits 109A-B
|nspan=2
}}
{{CAint|exit
|mile=57.60
|exit=58B
|road={{Jct|state=CA|I|15|dir1=south|name1=Ontario Freeway|city1=San Diego}}
|notes=none
}}
{{CAint|exit
|location1=Ontario
|location2=Fontana
|lspan=3
|mile=58.79
|exit=59
|road=Etiwanda Avenue, [[Valley Boulevard]]
|notes=Valley Boulevard was former [[U.S. Route 99|US 99]] south}}
{{CAint|exit
|type=etc
|mile=
|exit=—
|road=I-10 San Bernardino Express Lanes
|notes=Eastern end of express lane; opened in 2024<ref name="SB Express Lanes"/>
}}
{{CAint|exit
|type=unbuilt
|mile=
|exit=—
|road=I-10 San Bernardino Express Lanes (eastern expansion)
|notes=Western end of proposed expansion<ref name="SB Express Lanes extension"/>
}}
{{CAint|exit
|location=Fontana
|lspan=3
|mile=60.83
|exit=61
|road=Cherry Avenue
|notes=}}
{{CAint|exit
|mile=62.84
|exit=63
|road=Citrus Avenue
|notes=}}
{{CAint|exit
|mile=63.88
|exit=64
|road=Sierra Avenue
|notes=Single-point urban interchange}}
{{CAint|exit
|location=Bloomington
|mile=66.15
|exit=66
|road=Cedar Avenue&nbsp;– [[Bloomington, California|Bloomington]]
|notes=}}
{{CAint|exit
|location=Rialto
|mile=67.63
|exit=68
|road=Riverside Avenue
|notes=}}
{{CAint|exit
|location=Colton
|lspan=5
|mile=68.63
|exit=69
|road=Pepper Avenue
|notes=}}
{{CAint|exit
|mile=69.62
|exit=70A
|road=Rancho Avenue
|notes=}}
{{CAint|exit
|mile=70.28
|exit=70B
|road=9th Street&nbsp;– [[Downtown Colton, California|Downtown Colton]]
|notes=}}
{{CAint|exit
|mile=70.91
|exit=71
|road=Mt. Vernon Avenue
}}
{{CAint|exit
|type=trans
|mile=71.90
|exit=72
|road={{Jct|state=CA|I|215|city1=San Bernardino|city2=Barstow|city3=Riverside}}
|notes=Former [[Interstate 15E (California)|I-15E]] / [[U.S. Route 91 in California|US&nbsp;91]] / [[U.S. Route 395 in California|US&nbsp;395]]; eastern end of San Bernardino Freeway; {{nowrap|I-215}} north exit 40A-B, south exit 40}}
{{CAint|exit
|location=San Bernardino
|mile=72.92
|exit=73
|road=Waterman Avenue
|notes=Signed as exits&nbsp;73A (south) and 73B (north) eastbound}}
{{CAint|exit
|location1=San Bernardino
|location2=Loma Linda
|mile=73.93
|exit=74
|road={{jct|extra=airport}} Tippecanoe Avenue, Anderson Street&nbsp;– [[San Bernardino International Airport]], [[Loma Linda University]]
|notes=}}
{{CAint|exit
|location=Loma Linda
|mile=74.96
|exit=75
|road=Mountain View Avenue
|notes=}}
{{CAint|exit
|location=Redlands
|lspan=11
|mile=75.96
|exit=76
|road=California Street
|notes=}}
{{CAint|exit
|mile=76.97
|exit=77A
|road=Alabama Street
|notes=}}
{{CAint|exit
|mile=77.29
|exit=77B
|road={{Jct|state=CA|SR|210|dir1=west|to2=to|SR|330|dir2=north|name1=Foothill Freeway|city1=Pasadena|city2=Running Springs}}
|notes=Former [[California State Route 30|SR&nbsp;30]] west; SR 210 east exits 85A-B; future I-210 west; signed as exit&nbsp;77C westbound}}
{{CAint|exit
|mile=77.45
|exit=77C
|road=Tennessee Street
|notes=Signed as exit 77B westbound}}
{{CAint|exit
|mile=78.56
|mspan=2
|exit=79
|espan=2
|road={{Jct|state=CA|SR|38|dir1=east|name1=Orange Street|road|Eureka Street}}
|notes=Eastbound signage}}
{{CAint
|mile=none
|road={{Jct|state=CA|road|6th Street|to2=To|SR|38|location1=[[Big Bear City, California|Big Bear]]}}
|notes=Westbound signage}}
{{CAint|exit
|mile=79.53
|mspan=2
|exit=80
|espan=2
|road=University Street
|notes=Eastbound signage}}
{{CAint
|mile=none
|road=Cypress Avenue
|notes=Westbound signage}}
{{CAint|exit
|mile=80.79
|exit=81
|road=Ford Street, Redlands Boulevard
|notes=Redlands Boulevard is former [[U.S. Route 99|US 99]] north}}
{{CAint|exit
|type=unbuilt
|mile=
|exit=—
|road=I-10 San Bernardino Express Lanes (eastern expansion)
|notes=Eastern end of proposed expansion<ref name="SB Express Lanes extension"/>
}}
{{CAint|exit
|type=incomplete
|mile=81.95
|exit=82
|road=Wabash Avenue
|notes=Westbound exit and eastbound entrance}}
{{CAint|exit
|location=Yucaipa
|lspan=3
|mile=83.16
|exit=83
|road=Yucaipa Boulevard
|notes=}}
{{CAint|exit
|mile=84.69
|exit=85
|road=Oak Glen Road, Live Oak Canyon Road}}
{{CAint|exit
|mile=85.63
|type=incomplete
|place=Wildwood Rest Area (eastbound only)}}
{{CAint|exit
|county1=San Bernardino
|county2=Riverside
<!--|county_note=RIV R0.00–R156.49-->
|location1=Yucaipa
|location2=Calimesa
|mile=86.84
|exit=87
|road=County Line Road
|notes=}}
{{CAint|exit
|county=Riverside
|cspan=57
|location=Calimesa
|lspan=4
|mile=87.68
|exit=88
|road=Calimesa Boulevard
|notes=Former [[U.S. Route 99|US 99]] north}}
{{CAint|exit
|type=incomplete
|mile=88.74
|exit=89
|road=Singleton Road
|notes=Westbound exit and eastbound entrance}}
{{CAint|exit
|mile=89.87
|exit=90
|road=Cherry Valley Boulevard&nbsp;– [[Cherry Valley, California|Cherry Valley]]
|notes=}}
{{CAint|exit
|mile=90.88
|type=incomplete
|place=Brookside Rest Area (westbound only)}}
{{CAint|exit
|location=Beaumont
|lspan=5
|mile=92.35
|exit=92
|road=Oak Valley Parkway
|notes=}}
{{CAint|exit
|type=incomplete
|mile=93.49
|mspan=2
|exit=93
|espan=2
|road={{Jct|state=CA|SR|60|dir1=west|name1=Moreno Valley Freeway|city1=Riverside}}
|notes=Left exit westbound; no westbound entrance; former [[U.S. Route 60 in California|US&nbsp;60]] west}}
{{CAint
|type=incomplete
|mile=none
|road=6th Street
|notes=Eastbound exit and westbound entrance; former [[U.S. Route 60 in California|US 60]] east / [[U.S. Route 99 in California|US 99]] south}}
{{CAint|exit
|mile=94.39
|exit=94
|road={{Jct|state=CA|SR|79|dir1=south|name1=Beaumont Avenue}}
|notes=}}
{{CAint|exit|type=incomplete
|mile=95.03
|exit=95
|road=Pennsylvania Avenue
|notes=Westbound exit and eastbound entrance}}
{{CAint|exit
|location1=Beaumont
|location2=Banning
|mile=96.13
|exit=96
|road=Highland Springs Avenue
|notes=}}
{{CAint|exit
|location=Banning
|lspan=5
|mile=98.15
|exit=98
|road=Sunset Avenue
|notes=}}
{{CAint|exit
|mile=98.78
|exit=99
|road=22nd Street&nbsp;– [[Banning, California|Downtown Banning]]
|notes=}}
{{CAint|exit
|mile=99.67
|exit=100
|road={{Jct|state=CA|SR|243|dir1=south|name1=8th Street|city1=Idyllwild}}
|notes=}}
{{CAint|exit
|mile=100.68
|exit=101
|road=Hargrave Street&nbsp;– [[Idyllwild-Pine Cove, California|Idyllwild]]
|notes=}}
{{CAint|exit
|type=incomplete
|mile=101.58
|exit=102
|road=Ramsey Street
|notes=Westbound exit and eastbound entrance; former [[U.S. Route 60 in California|US&nbsp;60]] west / [[U.S. Route 99 in California|US&nbsp;99]] north}}
{{CAint|exit
|location1=Banning
|location2=Cabazon
|mile=103.36
|exit=103
|road=Malki Road
|notes=Formerly Fields Road}}
{{CAint|exit
|location=Cabazon
|lspan=2
|mile=104.48
|exit=104
|road=Morongo Trail&nbsp;– [[Cabazon, California|Cabazon]]
|notes=Former [[U.S. Route 99 in California|US&nbsp;99]] south; formerly Apache Trail}}
{{CAint|exit
|mile=106.22
|exit=106
|road=Main Street&nbsp;– [[Cabazon, California|Cabazon]]
|notes=Former [[U.S. Route 99 in California|US&nbsp;99]] north}}
{{CAint|exit
|location=none
|mile=111.37
|exit=110<!--former 111-->
|road=Haugen–Lehmann Way
|notes=Formerly Verbena Avenue; formerly exit 111}}
{{CAint|exit
|location=Palm Springs
|lspan=3
|type=incomplete
|mile=112.02
|exit=111<!--former 112-->
|road={{Jct|state=CA|SR|111|dir1=south|city1=Palm Springs}}
|notes=Eastbound exit and westbound entrance; formerly exit 112}}
{{CAint|exit
|mile=113.07
|place=Whitewater Rest Area}}
{{CAint|exit
|mile=114.05
|exit=114
|road=[[Whitewater, California|Whitewater]] (Tipton Road, Whitewater Cutoff)
|notes=}}
{{CAint|exit
|location=none
|mile=116.51
|exit=117
|road={{Jct|state=CA|SR|62|dir1=east|city1=Twentynine Palms|city2=Yucca Valley}}
|notes=Signed as "29 Palms"}}
{{CAint|exit
|location1=Palm Springs
|location2=Desert Hot Springs
|lspan=2
|mile=119.95
|exit=120
|road=Indian Canyon Drive&nbsp;– [[North Palm Springs, California|North Palm Springs]]
|notes=Formerly Indian Avenue}}
{{CAint|exit
|mile=122.96
|exit=123
|road=[[Gene Autry]] Trail, Palm Drive&nbsp;– [[Desert Hot Springs, California|Desert Hot Springs]]
|notes=}}
{{CAint|exit
|location=Cathedral City
|lspan=2
|mile=126.31
|exit=126
|road=Date Palm Drive
|notes=}}
{{CAint|exit
|mile=130.18
|exit=130
|road=[[Bob Hope]] Drive, Ramon Road&nbsp;– [[Palm Springs, California|Palm Springs]]
|notes=}}
{{CAint|exit
|location=Palm Desert
|lspan=4
|mile=131.33
|exit=131
|road=Monterey Avenue&nbsp;– [[Thousand Palms, California|Thousand Palms]]
|notes=}}
{{CAint|exit
|type=unbuilt
|mile=
|exit=133
|road=Portola Avenue
|notes=Proposed interchange<ref>{{cite web |author = Department of Public Works |url = https://www.cityofpalmdesert.org/our-city/departments/public-works/transportation/i-10-and-portola-interchange-project |title = I-10/Portola Avenue Interchange Project |publisher = City of Palm Desert |access-date = July 19, 2019 |archive-date = July 19, 2019 |archive-url = https://web.archive.org/web/20190719105208/https://www.cityofpalmdesert.org/our-city/departments/public-works/transportation/i-10-and-portola-interchange-project |url-status = dead}}</ref>}}
{{CAint|exit
|mile=133.71
|exit=134
|road=Cook Street
|notes=}}
{{CAint|exit
|mile=137.27
|exit=137
|road=Washington Street
|notes=}}
{{CAint|exit
|location=Indio
|lspan=5
|mile=139.16
|exit=139
|road=Indio Boulevard, Jefferson Street
|notes=Indio Boulevard is former [[U.S. Route 99|US 99]] south / [[California State Route 86|SR&nbsp;86]] south}}
{{CAint|exit
|mile=141.56
|exit=142
|road=Monroe Street&nbsp;– [[Central Indio, California|Central Indio]]
|notes=}}
{{CAint|exit
|mile=142.56
|exit=143
|road=Jackson Street
|notes=}}
{{CAint|exit
|mile=143.77
|exit=144
|road={{Jct|state=CA|road|Golf Center Parkway|SR|111|to2=to}}
|notes=}}
{{CAint|exit
|type=incomplete
|mile=144.65
|exit=145
|road={{Jct|state=CA|SR|86|dir1=south|name1=Expressway|city1=Brawley|city2=El Centro}}
|notes=Eastbound exit and westbound entrance; former [[California State Route 86S|SR 86S]]}}
{{CAint|exit
|location=Coachella
|lspan=2
|mile=145.71
|exit=146
|road={{Jct|state=CA|road|Dillon Road|to2=To|SR|86|dir2=south|name2=Expressway|city1=Coachella}}
|notes="To SR 86" not signed eastbound
}}
{{CAint|exit
|type=unbuilt
|mile=
|exit=151
|road=Avenue 50
|notes=Proposed interchange<ref>{{Cite web|url=https://www.desertsun.com/story/money/real-estate/2018/11/26/riverside-based-developer-kpc-buys-coachella-land/2013179002/|title=A developer bought four square miles north of I-10 in Coachella for $14 million|last=DiPierro|first=Amy|website=Desert Sun|access-date=August 8, 2019}}</ref>}}
{{CAint|exit
|location=none
|mile=158.82
|place=Cactus City Rest Area}}
{{CAint|exit
|location=none
|mile=161.94
|exit=162
|road=Frontage Road
|notes=}}
{{CAint|exit
|location=none
|mile=168.37
|exit=168
|road=Cottonwood Springs Road&nbsp;– [[Mecca, California|Mecca]], [[Twentynine Palms, California|Twentynine Palms]]
|notes=Former [[California State Route 195|SR&nbsp;195]]}}
{{CAint|exit
|location=none
|mile=172.89
|exit=173
|road=Summit Road&nbsp;– [[Chiriaco Summit, California|Chiriaco Summit]]
|notes=}}
{{CAint|exit
|location=none
|mile=176.94
|exit=177
|road=Hayfield Road
|notes=}}
{{CAint|exit
|location=none
|mile=181.87
|exit=182
|road=Red Cloud Road
|notes=}}
{{CAint|exit
|location=none
|mile=188.83
|exit=189
|road=[[Eagle Mountain, California|Eagle Mountain]] Road
|notes=}}
{{CAint|exit
|location=Desert Center
|mile=191.92
|exit=192
|road={{Jct|state=CA|SR|177|dir1=north|name1=Rice Road|city1=Desert Center}}
|notes=}}
{{CAint|exit
|location=none
|mile=201.22
|exit=201
|road=[[Corn Springs]] Road
|notes=}}
{{CAint|exit
|location=none
|mile=216.76
|exit=217
|road=Ford Dry Lake Road
|notes=}}
{{CAint|exit
|location=none
|mile=221.87
|exit=222
|road=[[Wiley's Well]] Road
|notes=}}
{{CAint|exit
|location=none
|mile=231.94
|exit=232
|road={{jct|extra=airport}} Mesa Drive&nbsp;– [[Blythe Airport]], [[Mesa Verde, California|Mesa Verde]]
|notes=Former [[U.S. Route 60 in California|US&nbsp;60]] east}}
{{CAint|exit
|location=Blythe
|lspan=7
|mile=235.97
|exit=236
|road={{Jct|state=CA|SR|78|BL|10|dab2=Blythe|dir1=west|dir2=east|noshield2=yes|name1=Neighbours Boulevard south|name2=Neighbours Boulevard north|city1=Brawley}}
|notes=}}
{{CAint|exit
|mile=238.97
|exit=239
|road=Lovekin Boulevard
|notes=}}
{{CAint|exit
|mile=239.98
|exit=240
|road=7th Street
|notes=}}
{{CAint|exit
|type=concur
|mile=240.99
|exit=241
|road={{Jct|state=CA|US|95|dir1=north|name1=Intake Boulevard|city1=Needles|location2=Fairgrounds}}
|notes=Western end of US&nbsp;95 overlap}}
{{CAint|exit
|type=incomplete
|mile=
|exit=242
|road={{Jctname|state=CA|BL|10|dab1=Blythe|name1=E. Hobson Way|noshield=yes}}
|notes=Westbound exit and entrance}}
{{CAint|exit
|type=incomplete
|mile=242.92
|mspan=2
|exit=243
|road=Riviera Drive / {{Jct|state=CA|BL|10|dab1=Blythe|dir1=west|noshield=yes}}
|notes=Eastbound exit and entrance; westbound exit and entrance replaced by exit 242; I-10 Bus. is former [[U.S. Route 60 in California|US&nbsp;60]] west}}
{{CAint|exit
|type=incomplete
|mile=none
|place=Agricultural Inspection Station (westbound only)
}}
{{jctbridge|exit
|river=[[Colorado River]]
|lspan=2
|mile=243.31
|mspan=2
|bridge=[[California]]–[[Arizona]] line}}
{{AZint|exit
|mile=none
|road={{jct|state=AZ|I|10|US|95|dir1=east|dir2=south|city1=Phoenix|city2=Yuma}}
|notes=Continuation into [[Ehrenberg, Arizona]]}}
{{Jctbtm|exit|keys=concur,etc,incomplete,trans}}
{{reflist|group= lower-alpha}}

==Spur to US 101==
{{Infobox road small
|state=CA
|name=Interstate 10 Spur to US 101<!--it is unsigned-->
|location=[[Los Angeles]]
|length_mi=1.0
|formed=1968
}}
{{Infobox road small
|state=CA
|type=I
|route=110
|formed=1958
|deleted=1968
}}
The legislative definition of Route&nbsp;10 includes a spur from [[Interstate 5 in California|I-5]] (the [[Golden State Freeway]]) west to [[U.S. Route 101 in California|US&nbsp;101]] (the [[Santa Ana Freeway]]) near downtown Los Angeles. This section of roadway, the westernmost part of the [[San Bernardino Freeway]], was in fact part of the original San Bernardino Freeway, carrying [[U.S. Route 60 in California|US&nbsp;60]]/[[U.S. Route 70 in California|US&nbsp;70]]/[[U.S. Route 99 in California|US&nbsp;99]] long before the Golden State Freeway opened. It was added to the [[Interstate Highway System]] by 1958 as I-110, but in 1968 it was removed from the system, becoming a Route&nbsp;10 spur.

This road is signed only for the roads it feeds into: US&nbsp;101 northbound and I-10 eastbound. It has only two [[interchange (road)|interchange]]s between its ends: a westbound exit off the spur at Mission Road immediately before merging with US&nbsp;101 northbound, and the eastbound exit for State Street and Soto Street before it merges onto I-10 eastbound—this one is numbered (as exit 19).<ref name=calnexus/> There is no direct access from the I-10 spur to I-5.<ref name="tglaor" />
{{clear}}

'''Exit list'''<br />
{{CAinttop|exit|county=Los Angeles|location=Los Angeles|length_ref=<ref name=calnexus/>|mile=yes|exit_ref=<ref>{{google maps |url= https://www.google.com/maps/dir/Santa+Ana+Fwy,+Los+Angeles,+CA+90033/34.0524581,-118.2242199/34.0551538,-118.2160551/34.054295,-118.2099755/@34.054647,-118.2165317,320m/data=!3m1!1e3!4m11!4m10!1m5!1m1!1s0x80c2c66b26066abb:0xbe0fced52de6e68a!2m2!1d-118.22604!2d34.0525455!1m0!1m0!1m0!3e0 |title= Map of the I-10 spur (San Bernardino Freeway) |access-date=May 15, 2015}}</ref>
}}
{{CAint|exit
|type=incomplete
|mile=0.0
|exit=—
|road={{jct|state=CA|US|101|dir1=north|name1=[[Santa Ana Freeway]]}}
|notes=Western terminus of San Bernardino Freeway; no access to US 101 south; US 101 exit 1D}}
{{CAint|exit
|type=incomplete
|mile=0.1
|exit=—
|road=Mission Road
|notes=Westbound exit and eastbound entrance; also includes access from Pleasant Avenue and northbound US 101 (via exit 1D) onto entrance ramp}}
{{CAint|exit
|type=incomplete
|mile=0.6
|exit=19
|road=State Street to Soto Street
|notes=Eastbound exit and westbound entrance
}}
{{CAint|exit
|type=trans
|mile=1.0
|exit=—
|road={{jct|state=CA|I|10|dir1=east|nolink1=yes|name1=San Bernardino Freeway east}}
|notes=No access to I-10 west; freeway continues as I-10 east
}}
{{Jctbtm|exit|keys=incomplete,trans}}

==Related routes==
There are three auxiliary Interstate Highways associated with I-10 in California: 
* The [[Harbor Freeway]] between [[California State Route 47|SR&nbsp;47]] in the [[San Pedro, Los Angeles|San Pedro]] district of Los Angeles and I-10 near [[Downtown Los Angeles]] is designated as I-110. The rest of the highway, running along the historic [[Arroyo Seco Parkway]] to [[Pasadena, California|Pasadena]], is instead designated as SR&nbsp;110.
* The [[Foothill Freeway]] between [[Interstate 5 in California|I-5]] in the [[Sylmar, Los Angeles|Sylmar]] district of Los Angeles and [[California State Route 57|SR&nbsp;57]] in [[Glendora, California|Glendora]] is designated as I-210. The rest of the Foothill Freeway, between SR&nbsp;57 and I-10 in [[Redlands, California|Redlands]], is instead designated as SR&nbsp;210.
* The [[Long Beach Freeway]] between SR&nbsp;47 in [[Long Beach, California|Long Beach]] and I-10 in [[Monterey Park, California|Monterey Park]] is designated as I-710. Due to community opposition, a northern extension through [[South Pasadena, California|South Pasadena]] was never constructed; the segment that was completed in Pasadena between California Boulevard and I-210 instead has the unsigned designation of SR&nbsp;710.

One [[Interstate 10 Business (Blythe, California)|business loop of I-10]] exists in California, running through [[Blythe, California|Blythe]] in [[Riverside County, California|Riverside County]].

==See also==
* {{portal-inline|California Roads}}
* {{portal-inline|Greater Los Angeles}}
* [[Lloyd G. Davies]], Los Angeles City Council member, 1943–1951, urged rail transportation on the Santa Monica Freeway

==References==
{{Reflist|30em}}

==External links==
{{Commons category|Interstate 10 in California}}
{{Attached KML|display=title,inline}}
{{CASR external links|I|10}}
*[https://www.metroexpresslanes.net Metro ExpressLanes] – includes toll information on the I-10 Express Lanes in Los Angeles County
*[https://www.sbexpresslanes.com/ San Bernardino County Express Lanes]
*[https://www.thetollroads.com/ Transportation Corridor Agencies] – processing partner of the San Bernardino County Express Lanes
*[https://www.aaroads.com/interstate-guide/i-010/ Interstate 10], Interstate-Guide.com
*[http://www.aaroads.com/california/i-010_ca.html Interstate 10], California @ AARoads.com
*[http://www.cahighways.org/009-016.html#010 Interstate 10], California Highways
*[https://www.nps.gov/juba/index.htm Juan Bautista de Anza National Historic Trail] official U.S. National Park Service website

{{state detail page browse|type=I|route=10|state=California|stateafter=Arizona}}
{{3di|10}}

{{DEFAULTSORT:I10 in California}}
[[Category:Interstate Highways in California|10]]
[[Category:Interstate 10| California]]
[[Category:Southern California freeways|Interstate 10]]
[[Category:Roads in Los Angeles County, California]]
[[Category:Roads in Riverside County, California]]
[[Category:Roads in San Bernardino County, California]]
[[Category:Transportation in Los Angeles]]
[[Category:Transportation in San Bernardino, California]]
[[Category:San Gorgonio Pass]]
[[Category:Coachella Valley]]
[[Category:Colorado Desert]]
[[Category:U.S. Route 99]]