View source for Foothill Freeway

{{short description|Interstate and state highway in California}}
{{Use American English|date=March 2025}}
{{Distinguish|Foothill Boulevard (Southern California){{!}}Foothill Boulevard}}
{{Use mdy dates|date=December 2022}}
{{Infobox road
|state=CA
|type=ISR
|route=210
|alternate_name=Foothill Freeway
|section=510
|maint=[[Caltrans]]
|map={{maplink-road|from=Foothill Freeway.map}}
|map_custom=yes
|map_notes=I-210 highlighted in red; SR&nbsp;210 in purple
|length_mi=85.31
|length_round=0
|spur_of=10
|spur_type=I 
|length_ref=<ref name=trucklist>{{Caltrans trucklist}}</ref><ref name=bridgelog />
|length_notes=Length includes the entire Foothill Freeway.
|history=Route proposed 1933<br/>Designated 210 in 1964
|allocation={{jct|state=CA|I|210|nolink1=true}} from [[Los Angeles]] to [[Glendora, California|Glendora]]<br/>{{jct|state=CA|CA|210|nolink1=true}} from Glendora to [[Redlands, California|Redlands]]
|direction_a=West
|terminus_a={{jct|state=CA|I|5}} in [[Los Angeles]]
|junction={{plainlist|
*{{jct|state=CA|SR|118}} in Los Angeles
*{{jct|state=CA|SR|2}} in [[La Cañada Flintridge]]
*{{jct|state=CA|SR|134}} in [[Pasadena]]
*{{jct|state=CA|I|605}} in [[Irwindale]]
*{{jct|state=CA|SR|57}} in [[Glendora, California|Glendora]]
*{{jct|state=CA|SR|66}} in [[La Verne, California|La Verne]]
*{{jct|state=CA|I|15}} on the [[Rancho Cucamonga, California|Rancho Cucamonga]]-[[Fontana, California|Fontana]] border
*{{jct|state=CA|I|215}} in [[San Bernardino]]
}}
{{jct|state=CA|SR|330}} near [[Highland, California|Highland]]
|direction_b=East
|terminus_b={{jct|state=CA|I|10}} in [[Redlands, California|Redlands]]
|counties=[[Los Angeles County, California|Los Angeles]], [[San Bernardino County, California|San Bernardino]]
|previous_type=SR
|previous_route=209
|next_type=SR
|next_route=211
}}

The '''Foothill Freeway''' is a [[controlled-access highway|freeway]] in the [[Greater Los Angeles]] in the U.S. state of [[California]], running from the [[Sylmar]] district of [[Los Angeles]] east to [[Redlands, California|Redlands]]. The western segment is signed as '''Interstate&nbsp;210''' ('''I-210''') from its western end at [[Interstate 5 in California|I-5]] to [[California State Route 57|SR&nbsp;57]] in [[Glendora, California|Glendora]], while the eastern segment is signed as '''State Route&nbsp;210''' ('''SR&nbsp;210''') to its eastern terminus at [[Interstate 10 in California|I-10]]. Under the [[California Streets and Highways Code]], the entire Foothill Freeway is legally referred to as '''Route&nbsp;210'''.

The Foothill Freeway name is a reference to [[Foothill Boulevard (Southern California)|Foothill Boulevard]] and the [[San Gabriel Mountains]], both of which the freeway runs parallel to for most of its length. The freeway follows the foothills of these mountains, connecting the northeastern suburbs of Los Angeles with the [[Inland Empire]]. Historically, the Foothill Freeway spanned multiple numerical designations. Additionally, the I-210 designation has changed routings, previously including a portion of what is now the [[Orange Freeway]] (SR&nbsp;57). East of [[Pasadena]], the Foothill Freeway parallels, and in some parts replaced, the route of former [[U.S. Route 66 in California|U.S. Route&nbsp;66]].

The portion between I-5 and [[California State Route 259|SR&nbsp;259]] in [[San Bernardino]] was up to [[Interstate Highway standards]] by 2007, but the eastern segment remains signed as a state route because the portion between SR&nbsp;259 and I-10 had not met those standards.<ref>{{Cite web |url = https://www.dailybulletin.com/2018/09/16/why-isnt-the-new-section-of-the-210-freeway-called-interstate-210/ |title = Why isn't the new section of the 210 Freeway called Interstate 210? |newspaper = Daily Bulletin |date = September 16, 2018 |access-date = July 2, 2024 }}</ref> On February&nbsp;26, 2020, construction in each direction took place to complete the standards required. The three-year project added lanes from Sterling Avenue in San Bernardino to San Bernardino Avenue in Redlands. Although construction was completed in September 2023, the eastern end currently remains "Route 210".<ref>{{Cite web|last=Cano |first=Alejandro |title=Project to add two more lanes to SR-210 finally ready to start|url=https://www.redlandscommunitynews.com/project-to-add-two-more-lanes-to-sr-210-finally-ready-to-start/article_d941e5dc-5400-11ea-855a-d34b6df40e1b.html|access-date=2021-04-17|website=Redlands News|date=February 21, 2020 |language=en}}</ref><ref>{{cite web | url=https://www.sbsun.com/2023/07/21/210-freeway-project-that-adds-a-lane-welcomed-at-highland-ceremony/ | title=210 Freeway project that adds a lane welcomed at Highland ceremony | date=July 22, 2023 }}</ref>

==Route description==
Route 210 is defined as follows in the [[California Codes|California Streets and Highways Code]]'s section 510:<ref>[https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=SHC&sectionNum=510.. California Code, SHC 510.]</ref>

<blockquote>
(a) Route 210 is from:<br />
(1) [[Interstate 5 in California|Route 5]] near Tunnel Station to [[California State Route 57|Route 57]] near the City of [[San Dimas, California|San Dimas]] via the vicinity of the City of [[San Fernando, California|San Fernando]].<br />
(2) Route 57 near the City of San Dimas to [[Interstate 10 in California|Route 10]] in the City of [[Redlands, California|Redlands]] via the vicinity of the City of [[Highland, California|Highland]].

(b) Route 210 may be known and designated as the Southern California Native American Freeway or by the name described in subdivision (a) of Section 101.19.
</blockquote>

I-210's western terminus is at its junction with [[Interstate 5 in California|I-5]], near the [[Sylmar, Los Angeles|Sylmar]] district of Los Angeles. From that point, the freeway's alignment is generally diagonal as it heads southeast through the northeastern [[San Fernando Valley]] and the [[Crescenta Valley]]. After leaving [[Los Angeles]], it enters northern [[Glendale, California|Glendale]] and then [[La Cañada Flintridge, California|La Cañada Flintridge]] where it meets with the Glendale Freeway and Angeles Crest Highway portions of [[California State Route 2|SR&nbsp;2]] before turning due south towards the junction with [[Ventura Freeway|SR&nbsp;134]]) in [[Pasadena, California|Pasadena]]. At this interchange, the Foothill Freeway shifts its alignment and direction, becoming an east–west freeway. From the north, the primary through lanes of I-210 become the unsigned northern stub of unfinished [[Interstate 710 and State Route 710 (California)|I-710]], while from the east, the through lanes of the Ventura Freeway become I-210 as the Ventura Freeway reaches its official eastern terminus. After intersecting the northern terminus of [[Interstate 605|I-605]], I-210 then continues east to [[California State Route 57|SR&nbsp;57]] in [[Glendora, California|Glendora]]. Heading east from the SR&nbsp;57 interchange until its eastern terminus at I-10 in [[Redlands, California|Redlands]], Route&nbsp;210 is signed as a state route.

[[File:210Freeway.JPG|thumb|right|Foothill Freeway as seen from [[Sierra Madre Villa station]] of the [[A Line (Los Angeles Metro)|Metro A Line]], in [[Pasadena, California|Pasadena]]]]
Portions of the [[Los Angeles County Metropolitan Transportation Authority]]'s (Metro) [[light rail]] [[A Line (Los Angeles Metro)|A Line]] runs in the [[median strip]] of I-210 from Pasadena to [[Arcadia, California|Arcadia]], serving three stations at {{LAMs|Lake}}, {{LAMs|Allen}}, and {{LAMs|Sierra Madre Villa}}.

[[File:Monrovia CA San Gabriel Mountains i210.JPG|thumb|Elevated portion of freeway in [[Monrovia, California|Monrovia]]]]
SR&nbsp;210 presently has two distinct segments. The western segment consists of newer freeway, beginning at the east end of I-210 near [[San Dimas, California|San Dimas]]. SR&nbsp;210 extends eastward, eventually paralleling Highland Avenue, as it continues through [[Fontana, California|Fontana]]. It intersects [[Interstate 15 in California|I-15]], an artery between [[Southern California]] and [[Nevada]], about {{convert|10|mi|km}} before it meets with [[Interstate 215 (California)|I-215]] in [[San Bernardino]].

The segment east of I-215 is the former alignment of SR&nbsp;30. This segment extends eastward to junctions with I-215, [[California State Route 259|SR&nbsp;259]], [[California State Route 18|SR&nbsp;18]], and [[California State Route 330|SR&nbsp;330]] in [[Highland, California|Highland]]. SR&nbsp;210 then curves southward and ends in a junction with [[Interstate 10 in California|I-10]] in [[Redlands, California|Redlands]].

Route&nbsp;210 is part of the [[California Freeway and Expressway System]],<ref name="cafes">{{CAFESystem|link = yes}}</ref> and is part of the [[National Highway System (United States)|National Highway System]],<ref name=fhwa-nhs>{{FHWA NHS map |region = losangeles |access-date = September 15, 2017 }}<br />{{FHWA NHS map |region = riverside |access-date = September 15, 2017 }}</ref> a network of highways that are considered important to the country's economy, defense, and mobility by the [[Federal Highway Administration]].<ref name=NHS-FHWA>{{FHWA NHS}}</ref> Route&nbsp;210 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]] (CalTrans).<ref name="caltransscenic">{{Caltrans scenic |access-date = September 15, 2017 }}</ref> Route&nbsp;210 from Route&nbsp;5 to Route&nbsp;10 in Redlands is known as the Foothill Freeway, as named by Senate Concurrent Resolution&nbsp;29, Chapter&nbsp;128 in 1991.<ref>{{CA Named Freeways | pages=85}}</ref>

===Glendora Curve=== <!-- Glendora Curve redirects here -->
The Glendora Curve is the former colloquial name for the interchange between what is now [[California State Route 57|SR&nbsp;57]] and the Foothill Freeway, I-210.<ref>{{Cite web|url=http://www.ci.glendora.ca.us/city_council/minutes/2007/2007%2005%2022%20CC%20Mtg%20Min.pdf|title=City Minutes referencing colloquial name.}}{{Dead link|date=April 2024 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> The "curve" refers to the I-210 freeway as it turned south in an almost 90 degree angle in the city of [[Glendora, California|Glendora]]. Prior to 2002, this "curve" was entirely part of I-210, as it continued south to its former eastern terminus at the [[Kellogg Interchange]] at the junctions of the Chino Valley Freeway, [[California State Route 71|SR&nbsp;71]], the San Bernardino Freeway, [[Interstate 10 in California|I-10]], and SR&nbsp;57. Once the I-210 was extended eastward from the Glendora Curve, the portion of I-210 south of the Glendora Curve was transferred to SR&nbsp;57 and the name Glendora Curve fell out of popular use.<ref>{{Cite web|url=http://www.sandimas.net/index2.php?option=com_content&do_pdf=1&id=87|archive-url=https://archive.today/20121031205234/http://www.sandimas.net/index2.php?option=com_content&do_pdf=1&id=87|url-status=dead|archive-date=October 31, 2012|title=Glendora Interchange}}</ref>

==History==
===Initial segments===
[[File:Los Angeles, California 1955 Yellow Book.jpg|thumb|1955 map of the planned Interstates in the Greater Los Angeles Area. The original proposal for present-day I-210 includes its original eastern terminus in [[Pomona, California|Pomona]].]]
[[File:CA210 Through San Bernardino and Highland Aerial.jpg|thumb|right|Aerial image of the freeway through San Bernardino]]
Construction began on the Foothill Freeway in 1958. The first section, starting at the eastern end of Foothill Boulevard in what is now [[La Cañada Flintridge]], and going across the Arroyo Seco near Devil's Gate Dam to Canada Avenue in [[Pasadena]], was opened in 1966; it was then signed as [[California State Route 118|SR&nbsp;118]]. This section was bypassed by the next stage of construction.

The section going northwest from Pasadena through La Canada Flintridge to the junction with I-5 in Sylmar was built in several stages between 1971 and 1977. The first section to open was between Ocean View Boulevard and Lowell Avenue in [[La Crescenta]], in July&nbsp;1972, followed in November by the section between Berkshire Avenue and Ocean View in La Cañada Flintridge. The section of freeway in [[Sylmar, California]], that was intended to open first (between I-5 and Maclay Avenue) was damaged by the [[1971 Sylmar Earthquake]], and the opening was delayed until repairs could be completed in 1973. In the [[Pasadena, California]], section, a bridge span traversing the [[Arroyo Seco (Los Angeles County)|Arroyo Seco]] collapsed during construction on October&nbsp;17, 1972, killing six workers, and as a result, the northbound section through Pasadena was not fully opened until 1974. The last section in the San Fernando Valley to be completed was between Highway&nbsp;118 in [[Lake View Terrace]], and Lowell Avenue in La Crescenta. While this section was largely completed by 1976, the portion between Sunland Boulevard and Wheatland Avenue (traversing the Tujunga Wash) was not fully completed until 1981. From 1976 to 1980, the uncompleted section of I-210 (notably near the interchange with Highway&nbsp;118, near the Paxton Street exit) was rented by [[MGM Television]] for the filming of the television series ''[[CHiPs]]''.

In 1968, the [[Atchison, Topeka and Santa Fe Railway]] depot at Santa Anita, a historic structure built in 1890, was moved to the [[Los Angeles County Arboretum and Botanic Garden]] to make way for a section of the freeway passing through [[Arcadia, California|Arcadia]].<ref name=LAarboratorium>{{cite web |url = http://www.arboretum.org/images/uploads/EARLY_CALIFORNIA_HISTORY(2).pdf |publisher = Los Angeles County Arboretum & Botanic Garden |title = Early California History |access-date = September 9, 2009 |url-status = dead |archive-url = https://web.archive.org/web/20101224223611/http://www.arboretum.org/images/uploads/EARLY_CALIFORNIA_HISTORY%282%29.pdf |archive-date = December 24, 2010 }}</ref><ref name=arcadia>{{cite web |url = http://www.ci.arcadia.ca.us/docs/caminosjul07.pdf |title =  Santa Anita Depot |publisher = Arcadia Historical Society |date = July 2007 |work = Caminos: Newsletter of the Arcadia Historical Society |page = 5 |access-date = September 9, 2009 |url-status = dead |archive-url = https://web.archive.org/web/20110608223235/http://www.ci.arcadia.ca.us/docs/caminosjul07.pdf |archive-date = June 8, 2011 }}</ref> Construction of the freeway through Pasadena and Arcadia prompted the realignment and relocation of the railroad's mainline to the freeway's median, with the former mainline trackage between Sierra Bonita and Kinneloa avenues in Pasadena becoming an [[industrial spur]] accessed via an underpass below the freeway's eastbound lanes. The "Pasadena" section from [[California State Route 134|SR&nbsp;134]] to Rosemead Boulevard was completed in 1976, while the section from [[Arcadia, California]] to the [[Kellogg Interchange]] with [[Interstate 10 in California|I-10]] at [[Pomona, California|Pomona]] had been previously completed in 1971.<ref name="bridgelog" /> The section between the Kellogg Interchange and [[Glendora, California|Glendora]] is no longer part of I-210. In 2003, this piece was renumbered as part of [[California State Route 57|SR&nbsp;57]], known as the Orange Freeway.

===Extensions===
In the 1990s, [[Caltrans]] began constructing extensions to the freeway from [[Glendora, California|Glendora]] east to the former [[Interstate 215 (California)|I-215]]/[[California State Route 30|SR&nbsp;30]] interchange in [[San Bernardino, California|San Bernardino]]. In 2003, a {{convert|20|mi|km|adj=on}} segment east from Glendora to Fontana was completed, with the portion proceeding south from Glendora renumbered SR&nbsp;57. The remaining section east of [[Interstate 15 (California)|I-15]] between Fontana and I-215 was opened on July&nbsp;24, 2007.

Caltrans has petitioned the [[American Association of State Highway and Transportation Officials]] (AASHTO), the trade organization that oversees the designation and numbering of the [[Interstate Highway System]], to resign the entire Foothill Freeway, including the entire segments of SR&nbsp;210 and SR&nbsp;30, as I-210. Upon completion of the new freeway segment west of I-215, SR&nbsp;30 from I-215 to I-10 in Redlands was resigned as SR&nbsp;210. The resigning in 2003 of the former portion of I-210 now signed as SR&nbsp;57 truncated I-210 from its parent route, I-10. Presuming that authority is given at some point in the future to resign the entirety of Route&nbsp;210 as an Interstate, I-210 will once again connect to its parent route, but much farther east in Redlands.

The western freeway segment, planned since the 1970s and completed in 2002, replaced a western surface street segment that began with Base Line Road (sometimes spelled Baseline Road) at its intersection with [[Foothill Boulevard (Los Angeles)|Foothill Boulevard]] in La Verne and extended eastward into [[Upland, California|Upland]]. In Upland, it became 16th&nbsp;Street, then turned northward onto Mountain Avenue, then turned eastward onto 19th&nbsp;Street. It left Upland and continued eastward into [[Rancho Cucamonga, California|Rancho Cucamonga]]. After Haven Avenue in Rancho Cucamonga, 19th&nbsp;Street curves north, and becomes Highland Avenue, which still exists in some areas although in pieces due to the freeway overlapping onto Highland Avenue, such as the eastbound on and off ramps for Milliken Avenue. Highland Avenue deviates from the original SR&nbsp;30 alignment at Etiwanda Avenue when it curves south and ends at East Avenue, the border of Rancho Cucamonga and Fontana. Highland Avenue starts again at Cherry Avenue, east of the I-15 and continues east, becoming W. Easton Avenue at Alder Avenue. Shortly afterwards, it makes a sharp left curve at Riverside Avenue, crossing over the freeway and becoming Highland Avenue again. From here, it leaves [[Rialto, California|Rialto]] and goes into [[San Bernardino]]. It crosses under SR&nbsp;210, I-215, and SR&nbsp;259 before entering the city of [[Highland, California|Highland]]. In Highland, the original SR&nbsp;30 crosses under the 210 one last time and ends as it crosses over SR&nbsp;330. Some maps still show part of this route as SR&nbsp;30.

===State Route 30===
{{infobox road small
|state=CA
|type=CA
|route=30
|location=[[Glendora, California|Glendora]]–[[Redlands, California|Redlands]]
|formed=1933
|deleted=2007
}}
'''State Route&nbsp;30''' ('''SR&nbsp;30''') was the former designation of SR&nbsp;210 and [[California State Route 330|SR&nbsp;330]]. SR&nbsp;30 ran from its interchange with I-210 in [[Glendora, California|Glendora]] east to [[California State Route 18|SR&nbsp;18]] at [[Big Bear Lake, California|Big Bear Lake]]. The easternmost portion of SR&nbsp;30 was transferred to SR&nbsp;330 in 1972. Thereafter, SR&nbsp;30 was routed south to [[Interstate 10 (California)|I-10]] in [[Redlands, California|Redlands]]. In 1999, the entirety of SR&nbsp;30 from the Glendora Curve to Redlands was transferred to Route&nbsp;210.

SR&nbsp;30 was adopted as a state route in 1933 as part of Legislative Route&nbsp;190. It was an unsigned highway, running from LRN&nbsp;9 (formerly US&nbsp;66, Foothill Blvd) near San Dimas to LRN&nbsp;26 (SR&nbsp;38) near Redlands. It also ran from LRN&nbsp;26 near Redlands to LRN&nbsp;43 near Big Bear Lake, which would become part of SR&nbsp;38.<ref>{{cite web |first = Daniel P. |last = Faigin |date = January 12, 2010 |url = http://www.cahighways.org/185-192.html |title = Routes 185–192 |work = California Highways |publisher = Daniel P. Faigin |access-date = May 3, 2010 }}{{self-published inline|certain=yes|date=January 2020}}</ref> During the renumbering of California routes, LRN&nbsp;190 was split into two different routes. The western portion, between I-210 in San Dimas and Highland became SR&nbsp;30. The eastern portion, between SR&nbsp;38 in Redlands and Highland was combined with LRN&nbsp;207 (currently SR&nbsp;330) to form SR&nbsp;106. In 1972, the northern portion of SR&nbsp;106, between SR&nbsp;30 and SR&nbsp;18 would be renumbered SR&nbsp;330.<ref>{{cite web |first = Daniel P. |last = Faigin |date = January 12, 2010 |url = http://www.cahighways.org/105-112.html |title = Routes 105–112 |work = California Highways |publisher = Daniel P. Faigin |access-date = May 3, 2010 }}{{self-published inline|certain=yes|date=January 2020}}</ref> The southern portion, between SR&nbsp;30 and I-10 (SR&nbsp;106 was moved to I-10 in 1965) was combined with SR&nbsp;30.<ref name=cahighways_org_30>{{cite web |first = Daniel P. |last = Faigin |date = January 12, 2010 |url = http://www.cahighways.org/025-032.html |title = Routes 25–32 |work = California Highways |publisher = Daniel P. Faigin |access-date = May 3, 2010 }}{{self-published inline|certain=yes|date=January 2020}}</ref>

Initial freeway construction started in 1968, and constructed the freeway between SR&nbsp;259 and Cedar Street in San Bernardino. Construction continued east in 1971, which brought the freeway just west of SR&nbsp;330. Construction did not resume until 1989 which extended the freeway west to I-215. The last phase of construction started in 1992, which connected the route south to I-10.<ref name=bridgelog>{{Caltrans bridgelog|date=July 2009}}</ref>

In 1968, the state requested that SR&nbsp;30 be incorporated into the Interstate system, but was declined.<ref name=cahighways_org_30/> The next effort started in 1998. The state decided to close the {{convert|25|mi|km|adj=on}} gap between I-210 and SR&nbsp;30. It also decided to number the new freeway as SR&nbsp;210, in preparation of the route becoming an Interstate. Also, when the new freeway was close to the existing route, the entire route would be renumbered SR&nbsp;210. In addition, the short section of the Orange Freeway, which was numbered I-210, would be renumbered SR&nbsp;57 to match the number used for the rest of the freeway. Construction started on the eastern end from Foothill Boulevard (exit&nbsp;47), and slowly moved east. In 2007, the mainline freeway section was completed, which ended the existence of SR&nbsp;30.

Two non-contiguous sections of road from Juniper Avenue in [[Fontana, California|Fontana]] to the [[Southern Pacific]] railroad bridge, and University Parkway to just east of the Route 210 overpass in [[San Bernardino, California|San Bernardino]] along Highland Avenue, Easton Street and Renaissance Parkway, some of which contains former segments of SR 30 and SR 30 Business, is still a state highway with the unsigned designation of '''Route 210U''' (for "unrelinquished").<ref name="SR210U">{{cite web|url=https://postmile.dot.ca.gov/PMQT/PostmileQueryTool.html?type=C&mode=L&lat=34.133243&long=-117.440485&lat2=34.135998&long2=-117.344644|title=Route 210U: Postmile SBD 15.528 to SBD 20.917|website=Postmile Services Postmile Query Tool|publisher=Caltrans|accessdate=March 20, 2025}}</ref>

==== State Route 30 Business ====
{{unreferenced section|date=February 2024}}
{{infobox road small
|state=CA
|type=SR-Bus
|route=30
|location=[[Rialto, California|Rialto]]–[[Highland, California|Highland]]
|formed=1964
|deleted=2007
}}
'''State Route&nbsp;30 Business''' ('''SR&nbsp;30 Bus.''') was a [[business route]] of SR&nbsp;30 that existed from 1964 to 2007 along Highland Avenue from [[Rialto, California|Rialto]] to [[Highland, California|Highland]]; it serves the city centers of both cities. Its main purpose was to divert traffic from the Foothill Freeway and connect traffic from downtown Rialto to Downtown San Bernardino by street. This business route remained signed at the crossing of Waterman Avenue and Highland Avenue where old, sun-bleached signs were not taken down until 2023.

===I-215 interchange===
The final phase of the Foothill Freeway project involved the completion of the interchange with I-215 (exit&nbsp;74).<ref>{{cite web |department = District 8 |url = http://www.dot.ca.gov/dist8/projects/cmia/pdf/SBD-SR-210-%20I-215Connector.pdf |title = I-215 North SR&nbsp;210/215 Connector Project Fact Sheet |archive-url = https://web.archive.org/web/20091117042006/http://www.dot.ca.gov/dist8/projects/cmia/pdf/SBD-SR-210-%20I-215Connector.pdf |archive-date = November 17, 2009  |publisher = California Department of Transportation |access-date = May 3, 2010 }}</ref> When the Foothill Freeway mainline was completed in 2007, exit&nbsp;74 had only four of its six ramps built, missing movements from SR&nbsp;210 eastbound to I-215 southbound and from I-215 northbound to SR&nbsp;210 westbound. The flyover plans for these moves had to be [[Earthquake engineering|recast]] to address potential [[soil liquefaction]] in the event of rupture of existing or undiscovered [[Fault (geology)|faults]] in the area during an earthquake; this project was separated from the main 210 project to avoid delaying the latter.<ref>{{cite web |url = http://www.sanbag.ca.gov/projects/mi_fwy_foothill_fly-overs.html |title = Route 210 to Interstate 215 High-Speed Connectors, San Bernardino |publisher = San Bernardino Associated Governments |date = November 3, 2009 |access-date = October 18, 2010 |archive-url = https://web.archive.org/web/20101006214104/http://www.sanbag.ca.gov/projects/mi_fwy_foothill_fly-overs.html |archive-date = October 6, 2010 }}</ref> Completion of exit&nbsp;74 was also tied to the widening of I-215 in the area. The flyover from northbound I-215 to westbound SR&nbsp;210 opened on December&nbsp;22, 2011,<ref>{{cite tweet |user = 215NEWS |author = ((I-215 Project)) |number = 150253723074039808 |date = December 23, 2011 |title = GREAT NEWS! NB #I215/ WB #SR210 Connector now OPEN to commuters! Drive and enjoy! }}</ref> while the eastbound SR&nbsp;210 to southbound I-215 opened on July&nbsp;23, 2012, thus completing the interchange.<ref>{{cite tweet |user = 215NEWS |author = ((I-215 Project)) |number = 227433505011941377 |date = July 23, 2012 |title = Great news! EB SR-210 to SB I-215 connector and SB Mt. Vernon Ave./27th St. on-ramp are now open! |link = no }}</ref>

==Future==
Caltrans District 8, in cooperation with the cities of [[Highland, California|Highland]] and [[San Bernardino, California|San Bernardino]] and the San Manuel Band of Mission Indians, is currently evaluating ways to improve mobility and connectivity to the freeway at and near the Highland Avenue interchange, including a proposal to construct a new interchange to the east at Victoria Avenue.<ref>{{cite web |title=State Route 210/Victoria Avenue New Interchange Project (EA 0M730) |url=https://www.cityofhighland.org/DocumentCenter/View/3890/Notice-of-Preparation---SR210Victoria-Avenue-New-Interchange-Project-PDF |date = July 11, 2023 |publisher=City of Highland California |access-date=7 September 2023}}</ref> The Fair Oaks Avenue South exit in Pasadena is also being moved to not share an exit with the Northbound 210.

==Exit list==
{{CAinttop|exit
|length_ref=<ref name=calnexus/>
|exit_ref=<ref name=calnexus>{{cite web |date = March 18, 2020 |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-210-03-2020-a11y.pdf|title = Route 210 Freeway Interchanges |access-date = November 24, 2024 }}</ref>
}}
{{CAint|exit
|county=Los Angeles
|cspan=60
|location=Los Angeles
|lspan=14
|mile=0.00
|mspan=3
|exit=1A
|road={{Jct|state=CA|I|5|dir1=north|name1=[[Golden State Freeway]]|city1=Sacramento}}
|notes=Western terminus of I-210; I-5 north exit 161, south exit 161A
|nspan=3
}}
{{CAint|exit
|mile=none
|exit=—
|road={{Jct|state=CA|I-Truck|5|name1=SR 5S north|dab1=Newhall|dir1=north|to2=to|SR|14}}
|notes=none
}}
{{CAint|exit
|mile=none
|exit=1B
|road={{Jct|state=CA|I|5|name1=[[Golden State Freeway]]|dir1=south|city1=Los Angeles}}
|notes=none
}}
{{CAint|exit
|mile=0.84
|exit=1C
|road=Yarnell Street
|notes=Signed as exit 1 eastbound
}}
{{CAint|exit
|mile=1.92
|exit=2
|road=Roxford Street&nbsp;– [[Sylmar, Los Angeles|Sylmar]]
}}
{{CAint|exit
|mile=3.28
|exit=3
|road=Polk Street
}}
{{CAint|exit
|mile=4.11
|exit=4
|road=Hubbard Street
}}
{{CAint|exit
|mile=4.94
|exit=5
|road=Maclay Street&nbsp;– [[San Fernando, California|San Fernando]]
}}
{{CAint|exit
|mile=5.91
|exit=6A
|road={{Jct|state=CA|SR|118|dir1=west|name1=[[Ronald Reagan Freeway]]|city1=Ventura}}
|notes=Signed as exit 6B westbound; SR&nbsp;118 east exits 46A-B
}}
{{CAint|exit
|mile=6.00
|exit=6B
|road=Paxton Street
|notes=Signed as exit 6A westbound
}}
{{CAint|exit
|mile=7.82
|exit=8
|road=Osborne Street / [[Foothill Boulevard (Southern California)|Foothill Boulevard]]
}}
{{CAint|exit
|mile=9.43
|exit=9
|road=Wheatland Avenue&nbsp;– [[Lake View Terrace, Los Angeles|Lake View Terrace]]
}}
{{Jctint|exit
|mile=11.08
|exit=11
|road=[[Sunland Boulevard]]&nbsp;– [[Sunland-Tujunga, Los Angeles|Sunland, Tujunga]]
}}
{{CAint|exit
|mile=14.17
|exit=14
|road=La Tuna Canyon Road
}}
{{CAint|exit
|location=Glendale
|lspan=2
|mile=15.62
|exit=16
|road=Lowell Avenue&nbsp;– [[Sunland-Tujunga, Los Angeles|Tujunga]]
}}
{{CAint|exit
|mile=16.77
|exit=17A
|road=Pennsylvania Avenue&nbsp;– [[La Crescenta, California|La Crescenta]]
|notes=Signed as exit 17 eastbound
}}
{{CAint|exit
|location=La&nbsp;Crescenta-Montrose
|lspan=2
|type=incomplete
|mile=17.40
|exit=17B
|road=La Crescenta Avenue&nbsp;– [[La Crescenta, California|La Crescenta]]
|notes=Westbound exit and eastbound entrance
}}
{{CAint|exit
|mile=18.22
|exit=18
|road=Ocean View Boulevard&nbsp;– [[Montrose, California|Montrose]]
}}
{{CAint|exit
|location=La Cañada Flintridge
|lspan=5
|type=concur
|mile=18.88
|exit=19
|road={{Jct|state=CA|SR|2|name1=[[Glendale Freeway]]|dir1=south|city1=Los Angeles}}
|notes=Western end of SR&nbsp;2 concurrency; SR&nbsp;2 north exits 21A-B
}}
{{CAint|exit
|type=concur
|mile=19.88
|exit=20
|road={{Jct|state=CA|SR|2|name1=[[Angeles Crest Highway]]|dir1=east|city1=La Cañada Flintridge}}
|notes=Eastern end of SR&nbsp;2 concurrency
}}
{{CAint|exit
|type=incomplete
|mile=20.60
|mspan=2
|exit=21
|espan=2
|road=Gould Avenue
|notes=Eastbound exit and westbound entrance
}}
{{CAint
|type=incomplete
|mile=none
|road=[[Foothill Boulevard (Southern California)|Foothill Boulevard]]
|notes=Westbound exit and eastbound entrance
}}
{{CAint|exit
|mile=21.53
|exit=22A
|road=Berkshire Avenue / Oak Grove Drive
|notes=
}}
{{CAint|exit
|location=Pasadena
|lspan=15
|mile=22.49
|exit=22B
|road=Arroyo Boulevard / Windsor Avenue
|notes=
}}
{{CAint|exit
|mile=23.19
|exit=23
|road=Lincoln Avenue / Washington Boulevard
|notes=
}}
{{CAint|exit
|mile=24.06
|exit=24
|road=Seco Street / Mountain Street
|notes=
}}
{{CAint|exit
|type=incomplete
|mile=24.96
|mspan=4
|exit=25A
|road={{Jct|state=CA|road|[[Colorado Boulevard]]|road|Del Mar Boulevard|road|California Boulevard|name3={{Jct|state=CA|SR|710|noshield=y}}|city1=Pasadena}}
|notes=Eastbound left exit and westbound left entrance
}}
{{CAint|exit
|type=incomplete
|mile=none
|exit=25B
|road={{Jct|state=CA|SR|134|dir1=west|name1=[[Ventura Freeway]]|city1=Ventura}}
|notes=Eastbound exit and westbound entrance; SR&nbsp;134 exit 13B
}}
{{CAint|exit
|type=incomplete
|mile=none
|exit=25A
|road=[[Fair Oaks Avenue]] south
|notes=Westbound exit and eastbound entrance
|nspan=2
}}
{{CAint|exit
|type=incomplete
|mile=none
|exit=25B
|road=[[Fair Oaks Avenue]] north / Marengo Avenue
|notes=none
}}
{{CAint|exit
|type=incomplete
|mile=25.60
|mspan=2
|exit=26A
|road={{Jct|state=CA|SR|134|dir1=west|name1=[[Ventura Freeway]]|SR|110|to2=1|road|Del Mar Boulevard|road|California Boulevard|name4={{Jct|state=CA|SR|710|noshield=y}}|city1=Ventura}}
|notes=Westbound left exit and eastbound left entrance; eastern terminus of SR&nbsp;134/Ventura Freeway.
}}
{{CAint|exit
|type=hov
|mile=none
|exit=♦
|road={{Jct|state=CA|SR|134|dir1=west}}
|notes=[[High-occupancy vehicle lane|HOV]] access only; westbound exit and eastbound entrance
}}
{{CAint|exit
|mile=26.33
|exit=26B
|road=Lake Avenue
|notes=Signed as exit 26 eastbound
}}
{{CAint|exit
|mile=26.94
|exit=27A
|road=Hill Avenue
|notes=Signed as exit 27 eastbound
}}
{{CAint|exit
|type=incomplete
|mile=27.41
|exit=27B
|road=Allen Avenue
|notes=Westbound exit and eastbound entrance
}}
{{CAint|exit
|type=incomplete
|mile=28.25
|exit=28
|road=Altadena Drive / [[Sierra Madre Boulevard]]
|notes=Eastbound exit and westbound entrance}}
{{CAint|exit
|mile=28.68
|exit=29A
|road=San Gabriel Boulevard
}}
{{CAint|exit
|mile=29.29
|exit=29B
|road=Madre Street
|notes=
}}
{{CAint|exit
|location1=Pasadena
|location2=Arcadia
|mile=29.80
|exit=30
|road={{Jct|state=CA|SR|19|dir1=south|name1=[[Rosemead Boulevard]]|road|Michillinda Avenue}}
|notes=Signed as exits 30A (south) and 30B (north) eastbound
}}
{{CAint|exit
|location=Arcadia
|lspan=2
|mile=30.82
|exit=31
|road=Baldwin Avenue&nbsp;– [[Sierra Madre, California|Sierra Madre]]
|notes=
}}
{{CAint|exit
|mile=31.88
|exit=32
|road=Santa Anita Avenue
|notes=
}}
{{CAint|exit
|location=Monrovia
|lspan=2
|mile=32.89
|exit=33
|road=Huntington Drive
|notes=
}}
{{CAint|exit
|mile=33.91
|exit=34
|road=Myrtle Avenue
|notes=
}}
{{CAint|exit
|location1=Monrovia
|location2=Duarte
|mile=34.74
|exit=35A
|road=Mountain Avenue
|notes=
}}
{{CAint|exit
|location=Duarte
|mile=35.24
|exit=35B
|road=Buena Vista Street
|notes=
}}
{{CAint|exit
|location=Irwindale
|lspan=2
|mile=36.41
|mile2=36.43
|exit=36A-B
|road={{Jct|state=CA|I|605|dir1=south|name1=[[San Gabriel River Freeway]]|road|Mount Olive Drive}}
|notes=Signed as exit 36A (I-605) and 36B (Mount Olive Drive); I-605 exit 27A-B
}}
{{CAint|exit
|mile=37.86
|exit=38
|road=Irwindale Avenue
|notes=
}}
{{CAint|exit
|location=Azusa
|lspan=3
|mile=38.96
|exit=39
|road=Vernon Avenue
|notes=
}}
{{CAint|exit
|mile=39.60
|exit=40
|road={{Jct|state=CA|SR|39|name1=[[Azusa Avenue]]}}
|notes=
}}
{{CAint|exit
|mile=40.60
|exit=41
|road=Citrus Avenue&nbsp;– [[Covina, California|Covina]]
|notes=
}}
{{CAint|exit
|location=Glendora
|lspan=5
|mile=41.59
|exit=42
|road=Grand Avenue
|notes=
}}
{{CAint|exit
|mile=43.16
|exit=43
|road=Sunflower Avenue
|notes=
}}
{{CAint|exit
|type=incomplete
|mile=44.10
|mspan=2
|exit=44A
|road={{Jct|state=CA|SR|57|dir1=south|name1=[[Orange Freeway]]|city1=Santa Ana}}
|notes=Eastbound exit and westbound entrance; west end of Glendora Curve; SR&nbsp;57 is former I-210; SR&nbsp;57 north exit 25C
}}
{{CAint|exit
|type=trans
|mile=none
|exit=44B
|road=Lone Hill Avenue
|notes=Signed as exit 44 westbound; eastern end of I-210 and western end of SR&nbsp;210
}}
{{CAint|exit
|type=incomplete
|mile=44.90
|exit=45
|road={{Jct|state=CA|SR|57|dir1=south|name1=[[Orange Freeway]]|city1=Santa Ana}}
|notes=Westbound exit and eastbound entrance; east end of Glendora Curve; SR&nbsp;57 is former I-210; SR&nbsp;57 north exit 25B
}}
{{CAint|exit
|location=San Dimas
|mile=45.48
|exit=46
|road=San Dimas Avenue
|notes=
}}
{{CAint|exit
|location=La Verne
|lspan=2
|mile=46.66
|exit=47
|road={{Jct|state=CA|SR|66|dir1=east|name1=[[Foothill Boulevard (Southern California)|Foothill Boulevard]]|city1=La Verne}}
|notes=Former [[U.S. Route 66 in California|US 66]]
}}
{{CAint|exit
|mile=48.06
|exit=48
|road=Fruit Street
|notes=
}}
{{CAint|exit
|location=Claremont
|lspan=2
|mile=49.57
|exit=50
|road=Towne Avenue
|notes=
}}
{{CAint|exit
|mile=51.91
|exit=52
|road=Base Line Road
|notes=Former SR&nbsp;30
}}
{{CAint|exit
|county=San Bernardino
|cspan=30
|location=Upland
|lspan=2
|mile=53.65
|exit=54
|road=Mountain Avenue&nbsp;– [[Mount San Antonio|Mount Baldy]]
|notes=
}}
{{CAint|exit
|mile=55.64
|exit=56
|road=Campus Avenue
|notes=
}}
{{CAint|exit
|location=Rancho Cucamonga
|lspan=5
|mile=56.75
|exit=57
|road=Carnelian Street
|notes=
}}
{{CAint|exit
|mile=58.05
|exit=58
|road=Archibald Avenue
|notes=
}}
{{CAint|exit
|mile=59.06
|exit=59
|road=Haven Avenue
|notes=
}}
{{CAint|exit
|mile=60.06
|exit=60
|road=Milliken Avenue
|notes=
}}
{{CAint|exit
|mile=61.31
|exit=61
|road=Day Creek Boulevard
|notes=
}}
{{CAint|exit
|location1=Rancho Cucamonga
|location2=Fontana
|mile=63.80
|exit=64A
|road={{Jct|state=CA|I|15|name1=[[Ontario Freeway]]|city1=Barstow|city2=San Diego}}
|notes=I-15 exits 115A-B
}}
{{CAint|exit
|location=Fontana
|lspan=4
|mile=64.08
|exit=64B
|road=Cherry Avenue
|notes=
}}
{{CAint|exit
|type=hov
|mile=
|exit=♦
|road=Beech Avenue
|notes=[[High-occupancy vehicle lane|HOV]] access only
}}
{{CAint|exit
|mile=66.08
|exit=66
|road=Citrus Avenue
|notes=
}}
{{CAint|exit
|mile=67.08
|exit=67
|road=Sierra Avenue
|notes=
}}
{{CAint|exit
|location=Rialto
|lspan=4
|mile=68.18
|exit=68
|road=Alder Avenue
|notes=
}}
{{CAint|exit
|mile=69.54
|exit=70
|road=Ayala Drive
|notes=
}}
{{CAint|exit
|mile=71.15
|exit=71
|road=Riverside Avenue
|notes=
}}
{{CAint|exit
|mile=71.82
|exit=72
|road=Pepper Avenue
|notes=
}}
{{CAint|exit
|location=San Bernardino
|lspan=9
|mile=72.84
|exit=73
|road=State Street / University Parkway
|notes=
}}
{{CAint|exit
|mile=74.02
|mspan=2
|exit=74
|espan=2
|road={{Jct|state=CA|I|215|dir1=north|city1=Barstow}}
|notes=Former [[Interstate 15E|I-15E]] north; I-215 south exits 46A-C
}}
{{CAint
|type=incomplete
|mile=none
|road={{Jct|state=CA|I|215|dir1=south|city1=Riverside}}
|notes=Eastbound exit and westbound entrance; westbound access is via exit 75B; former [[Interstate 15E|I-15E]] south; I-215 north exit 46B
}}
{{CAint|exit
|mile=75.09
|exit=75A
|road=H Street
|notes=Signed as exit 75 eastbound
}}
{{CAint|exit
|type=incomplete
|mile=75.25
|exit=75B
|road={{Jct|state=CA|to1=to|I|215|dir1=south|name1={{Jct|state=CA|SR|259|dir1=south|noshield1=yes}}|city1=Riverside}}
|notes=Eastbound access is via exit 74; I-215 north exit 45
}}
{{CAint|exit
|mile=76.37
|exit=76
|road={{Jct|state=CA|SR|18|dir1=north|name1=[[Waterman Avenue]]}}
|notes=
}}
{{CAint|exit
|mile=77.87
|exit=78
|road=Del Rosa Avenue
|notes=
}}
{{CAint|exit
|mile=78.88
|exit=79
|road=Highland Avenue
|notes=
}}
{{CAint|exit
|mile=80.89
|exit=81
|road={{Jct|state=CA|SR|330|dir1=north|city1=Running Springs|city2=Big Bear Lake}}
|notes=
}}
{{CAint|exit
|location=Highland
|lspan=2
|mile=81.47
|exit=82
|road=Base Line Street
|notes=
}}
{{CAint|exit
|mile=82.38
|exit=83
|road=[[Foothill Boulevard (Southern California)|5th Street]] / Greenspot Road
|notes=
}}
{{CAint|exit
|location=Redlands
|lspan=3
|mile=84.49
|exit=84
|road=San Bernardino Avenue
|notes=
}}
{{CAint|exit
|mile=85.31
|mspan=2
|exit=85A
|road={{Jct|state=CA|I|10|dir1=west|city1=Los Angeles}}
|notes=Eastern terminus of SR 210; I-10 east exit 77B, west exit 77C
|nspan=2
}}
{{CAint|exit
|mile=none
|exit=85B
|road={{Jct|state=CA|I|10|dir1=east|city1=Indio}}
|notes=none
}}
{{Jctbtm|col=7|keys=concur,hov,incomplete,trans}}

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

==References==
{{reflist|30em}}

==External links==
{{commons}}
{{Attached KML|display=inline,title}}
{{CASR external links}}
*[http://www.aaroads.com/california/i-210_ca.html California @ AARoads - Interstate 210]
*[http://www.cahighways.org/209-216.html#210 California Highways: Interstate 210]
*[https://web.archive.org/web/20050915074945/http://www.sanbag.ca.gov/projects/mi_fwy_foothill.html SANBAG Projects: State Route 210 - Foothill Freeway]

{{I-10 aux}}

[[Category:Interstate Highways in California|10-2]]
[[Category:Southern California freeways]]
[[Category:State highways in California]]
[[Category:Roads in Los Angeles County, California|Interstate 210]]
[[Category:Roads in San Bernardino County, California|Interstate 210]]
[[Category:Auxiliary Interstate Highways|10-2 California]]
[[Category:Interstate 10|2 (California)]]
[[Category:Transportation in the Inland Empire|Interstate 210]]
[[Category:Transportation in the San Fernando Valley|Interstate 210]]
[[Category:Transportation in Pasadena, California|Interstate 201]]
[[Category:Transportation in San Bernardino, California|Interstate 210]]
[[Category:Named freeways in California]]