Interstate 10 in California

This article is about the section of Interstate 10 in California. For the entire route, see Interstate 10.

Interstate 10 marker

Interstate 10
Route information
Defined by Streets and Highways Code § 310
Maintained by Caltrans
Length: 243.31 mi[1] (391.57 km)
Existed: August 7, 1947 by FHWA[2]
July 1, 1964 by Caltrans[3] – present
Major junctions
West end: SR 1 in Santa Monica
 
East end: I-10 / US 95 at Arizona state line
Highway system
SR 9SR 11

Interstate 10 (I-10, The 10), a major east–west Interstate Highway, runs in the U.S. state of California east from Santa Monica, on the Pacific Ocean, through Los Angeles and San Bernardino to the border with Arizona. In the greater Los Angeles area, it is known as the Santa Monica Freeway and the San Bernardino Freeway, linked by a short concurrency on Interstate 5 (the Golden State Freeway) at the East Los Angeles Interchange.

Interstate 10 also has portions designated as either the Rosa Parks Freeway or the Redlands Freeway.

Route description

Interstate 10 begins at the McClure Tunnel in Santa Monica, California.

The California Streets and Highways Code defines Route 10 from "(a) Route 1 in Santa Monica to Route 5 near Seventh Street in Los Angeles. (b) Route 101 near Mission Road in Los Angeles to the Arizona state line at the Colorado River via the vicinity of Monterey Park, Pomona, Colton, Indio, and Chiriaco Summit and via Blythe.." Despite the legislative definition, Caltrans connects the two sections of the route by cosigning I-10 down Interstate 5 between the East LA Interchange and the Santa Monica Freeway, negating a section of the San Bernardino Freeway west of I-5. This short section of Route 10 between Route 5 and Route 101, which was formerly defined as Route 110 (signed as Interstate 110) until 1968, is signed overhead for I-10 eastbound and for U.S. 101 westbound. This I-5/I-10 cosigning is consistent with the Federal Highway Administration's Interstate Highway route logs that such an overlap exists for the segment of I-10 in California.[4]

I-10 is part of the California Freeway and Expressway System and is eligible for the State Scenic Highway System.[5][6] However, it is not actually a scenic highway as designated by Caltrans.[7] The Santa Monica Freeway is Route 10 from Route 1 to Route 5, as named by the State Highway Commission on April 25, 1957.[8]

The section between the Harbor (I-110) and San Diego (I-405) freeways is also signed as the Rosa Parks Freeway, after the African American civil rights activist. The I-10 freeway is signed as the Christopher Columbus Transcontinental Highway in Santa Monica.[9]

Santa Monica Freeway

The Santa Monica Freeway is the westernmost segment of Interstate 10, beginning at the western terminus of I-10 at the Pacific Coast Highway in Santa Monica, California and ending southeast of downtown Los Angeles at the East Los Angeles Interchange.

The Santa Monica Freeway interchange with the Harbor Freeway, as seen by traffic going eastbound on the Santa Monica
Downtown Los Angeles skyline as seen from the freeway. A slight (smaller than usual rush hour) traffic jam is ahead.

Interstate 10 begins in the city of Santa Monica when State Route 1 turns into a freeway and heads east. SR 1 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 Interstate 405. Interstate 10 then continues through Sawtelle, Rancho Park, Cheviot Hills, Beverlywood and Crestview in West Los Angeles, Lafayette Square and Wellington Square in Mid-City, Arlington Heights, West Adams and Jefferson Park into downtown Los Angeles. On the western edge of downtown, I-10 has an interchange with Interstate 110 to the south and State Route 110 to the north. I-10 then travels along the southern edge of downtown to the East Los Angeles Interchange.[10][11]

A typical traffic jam on the Santa Monica Freeway, at 2:30 p.m. on a Wednesday afternoon

At the East Los Angeles Interchange, State Route 60 diverges east towards Riverside and Pomona. I-10 then turns north, running concurrently with Interstate 5 for a few miles. Then, Interstate 10 heads east and merges with the traffic from the spur to US 101 onto the San Bernardino Freeway.[10][11]

Heavily defaced button copy sign marking an entrance to the Santa Monica Freeway, 2005

The freeway is 14 lanes wide (two local, five express in each direction) from the Harbor Freeway (Interstate 110) interchange to the Arlington Avenue off-ramp. Most of these lanes are full at peak travel times (even on Saturdays). The remainder of the freeway varies between eight and 10 lanes in width. The whole freeway (though a much smaller version) opened in 1965, with a formal dedication held in 1966.[12]

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 the 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 United States.

Due to the high traffic volume, car accidents 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).[13]

The Santa Monica Freeway is considered the border between West Los Angeles and South Los Angeles. Part of the freeway also skims the Byzantine-Latino quarter, which is home to many immigrants affiliated with the Eastern Orthodox Church.

San Bernardino Freeway

Heavy traffic in downtown San Bernardino along the San Bernardino Freeway near the interchange with the Downtown San Bernardino Freeway (I-215)

Interstate 10 heads east from Downtown Los Angeles the Eastside Los Angeles region, with two HOV lanes paralleling it on the north side called the El Monte Busway. These roadways extend to Alameda Street on US 101, following the spur west to where I-10 passes California State University Los Angeles. However, after the Interstate 710 interchange, these lanes merge back into the typical left lanes of each roadway.

East of Interstate 710, I-10 continues through Monterey Park, Alhambra, Rosemead, San Gabriel, El Monte, and Baldwin Park before intersecting with Interstate 605. It then travels through West Covina and Covina before heading up Kellogg Hill into San Dimas, where I-10 intersects with State Route 57 (formerly part of Interstate 210) and State Route 71 at the Kellogg Interchange. I-10 then heads east through Pomona and Claremont, and leaving L.A. County to enter San Bernardino County.[10][11]

Interchange with the Ontario Freeway (I-15) as seen by west-bound traffic on the San Bernardino Freeway.

In San Bernardino County, Interstate 10 travels through Montclair, Upland, and Ontario, providing access to Ontario International Airport. I-10 then has a four-level interchange with Interstate 15 before traveling through Fontana, Rialto, and Colton. I-10 then intersects with Interstate 215 before briefly entering San Bernardino city proper and traveling through Loma Linda and Redlands. In Redlands, I-10 intersects with the State Route 210 freeway (future Interstate 210) and with State Route 38 before entering Yucaipa and eventually Riverside County.[10][14]

Riverside County

Cabazon Dinosaurs is a roadside attraction at the Main Street exit in Cabazon.

In Riverside County, I-10 goes through Calimesa before entering Beaumont and merging with the eastern end of State Route 60 (itself formerly the California segment of US 60). In Banning, I-10 has a diamond intersection with State Route 243 before passing through San Gorgonio Pass between the San Bernardino Mountains and the San Jacinto Mountains and entering Palm Springs. I-10 intersects with the western end of State Route 111, whereas I-10 bypasses the town and connects to State Route 62, a major east–west route through the Mojave Desert. I-10 cuts through Cathedral City and passes just outside the city limits of Rancho Mirage, Palm Desert, and Indian Wells before entering Indio. I-10 then has an interchange in Coachella with the northern end of the State Route 86 freeway, which also leads to SR-111. Past Coachella, I-10 traverses the Mojave Desert, with few junctions and no cities. Several miles east and roughly halfway between Indio and Blythe, in the community of Desert Center, I-10 intersects with State Route 177, a turnoff that connects to SR-62. Near the Arizona state line, I-10 meets the terminus of State Route 78. In the city of Blythe, I-10 runs concurrently with U.S. Route 95 as both routes cross the Colorado River into Arizona.[10][14]

I-10 westbound is usually signed as towards San Bernardino and/or Los Angeles in the Mojave Desert. Eastbound, in the San Gorgonio Pass, the signage indicates "Indio, Other Desert Cities", and indicates "Blythe" after Indio — the first sign for Phoenix does not occur until Indio.

History

I-10 after the 1994 collapse

What is now Interstate 10 east of Los Angeles was generally part of the Atlantic and Pacific Highway, one of many transcontinental national auto trails. By 1926, when the United States Numbered Highways were assigned, the road across the desert east of Indio was unimproved, while the road from Indio west to San Bernardino (as well as various roads west to Los Angeles) was paved.[15] In late 1926, U.S. Route 99 was designated along the section of road from San Bernardino to Indio, where it turned south along present State Route 86 on the west side of the Salton Sea.[16] West of San Bernardino, US 99 ran to Los Angeles concurrent with U.S. Route 66 (via Pasadena) before turning north; this route to Los Angeles is north of the later alignment of Interstate 10.[17] The piece of this between San Bernardino and Indio was defined in 1915 as Legislative Route 26. (It continued south from Indio via El Centro to Heber; see U.S. Route 99 and State Route 86 for details. A 1931 extension took it south to Calexico on present State Route 111.)[18]

The route from Indio via Mecca to the Arizona state line near Blythe was defined in 1919 as pre-1964 Legislative Route 64. (Later extensions took LR 64 west along present State Route 74; a 1931 cutoff bypassed Mecca to the north.) LR 26 was extended west from San Bernardino to Los Angeles in 1931, running along an alignment south of the existing US 66/US 99.[18] Neither of these was a signed route until around 1932, when U.S. Route 60 was extended west from Arizona to Los Angeles, running along LR 64 to Indio, LR 26 (with US 99) to Beaumont, pre-1964 Legislative Route 19 to Pomona, and LR 26 to Los Angeles. (The original alignment of LR 26 ran roughly where State Route 60 now is west of Pomona, but an alignment close to present I-10 opened around 1934).[19][20]

Thus, in 1931, what is now I-10 east of Los Angeles had been defined as LR 26 from Los Angeles to Indio and LR 64 from Indio to Arizona. It was signed as US 99 from San Bernardino to Indio, and US 60 came along around 1932 from Los Angeles to Pomona and from Beaumont to Arizona. U.S. Route 70 was extended west from Arizona ca. 1936 along the whole route to Los Angeles,[19] and, between 1933 and 1942,[21] US 99 moved from US 66 to present I-10 between San Bernardino and Los Angeles, forming a three-way concurrency between Pomona and Los Angeles. Old alignments and names include Valley Boulevard, Ramona Boulevard and Garvey Avenue.

Interstate 10 eastbound near Indio

I-10 holds the distinction of being the first freeway in Los Angeles. A four-mile section of today's freeway was built between 1933 and 1935 at a cost of $877,000. 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.[22]

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.[2] 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 70, US 99, and part of US 60. Those three routes were all removed in the 1964 renumbering, leaving only I-10.

The part west of downtown Los Angeles was pre-1964 Legislative Route 173, defined in 1933 from Santa Monica to downtown Los Angeles.[23] It was signed as State Route 26 by 1942, running primarily Olympic Boulevard.[21] 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.[2] It was completed ca. 1964,[24] and became Route 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.[25]

The El Monte Busway was converted to high occupancy toll (HOT) lanes in 2013 as part of the Metro ExpressLanes project.[26]

On July 19, 2015, a bridge carrying the eastbound lanes of I-10 near Desert Center collapsed from floodwater from the remnants of Hurricane Dolores, trapping a vehicle.[27][28]

On October 23, 2016 thirteen people died in a tour bus crash. The cause is under investigation.

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 United States National Historic Trail and National Millennium Trail programs. In 2005, 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.

Future

With the increasing high traffic volume between Los Angeles and San Bernardino, Caltrans has a few projects on the books to relieve the traffic congestion:

Exit list

CountyLocationmi[1]kmExit[1]DestinationsNotes
Los AngelesSanta Monica0.000.00 SR 1 north (Pacific Coast Highway) OxnardNational western terminus; west end of SR 1 overlap; former US 101 Alt. north
1A4th Street, 5th StreetWestbound exit and eastbound entrance
0.961.541B SR 1 south (Lincoln Boulevard)East end of SR 1 overlap; signed as exit 1A eastbound; former US 66 east/US 101 Alt. south
1C20th StreetEastbound exit and westbound entrance
2.083.352ACloverfield BoulevardWestbound exit and eastbound entrance
2.303.702BCentinela Avenue
Los Angeles2.353.782CBundy DriveWestbound exit and eastbound entrance; signed as exits 2B (south) and 2C (north)
3.11–
3.29
5.01–
5.29
3 I-405 (San Diego Freeway) Sacramento, LAX Airport, Long BeachSigned as exits 3A (north) and 3B (south); former SR 7; I-405 north exit 53B, south exit 53
4.246.824National Boulevard, Overland AvenueSigned as just "Overland Avenue" westbound
5.058.135National BoulevardWestbound exit and eastbound entrance
5.769.276Robertson Boulevard Culver City
6.8110.967ALa Cienega Boulevard, Venice Boulevard (SR 187 west)
7.0011.277BFairfax Avenue, Washington Boulevard
8.2713.318La Brea Avenue
9.2314.859Crenshaw Boulevard
10.1616.3510Arlington Avenue
10.6617.1611Western AvenueNo exit number westbound
12Normandie AvenueNo exit number westbound
11.6418.73Vermont Avenue
12.2519.71Hoover Street
12.68–
12.73
20.41–
20.49
13 I-110 south / SR 110 north (Harbor Freeway) / Pico Boulevard San Pedro, Pasadena, Downtown Los AngelesSigned as exits 13A (south) and 13B (north) eastbound; I-110/SR 110 exit 21
13CGrand AvenueNo westbound exit
13.6421.9514AMaple AvenueEastbound exit and westbound entrance
Los Angeles Street Convention CenterWestbound exit and eastbound entrance
14.2222.8814BSan Pedro StreetNo westbound entrance
14.5523.4215ACentral Avenue
15.1924.4515BAlameda Street
15.7125.2816AMateo Street, Santa Fe Avenue
16.2326.1216B I-5 south (Santa Ana Freeway) / SR 60 east (Pomona Freeway) Santa Ana, PomonaWest end of I-5 overlap; no exit number westbound; east end of Santa Monica Freeway at merge with I-5 past Boyle Ave. exit;[30] I-5 north exit 134, SR 60 west 1A
Boyle AvenueEastbound exit only
135A[lower-alpha 1]Fourth Street
135B[lower-alpha 1]Cesar Chavez AvenueEastbound exit and westbound entrance
19.0030.58 I-5 north (Golden State Freeway) SacramentoEast end of I-5 overlap; I-5 north exit 135C, south exit 135B
19.0730.6919AState StreetWestbound left exit and eastbound entrance
19.0030.58 To US 101 north (Santa Ana Freeway) / San Bernardino Freeway west Los AngelesWestbound left exit and eastbound left entrance
19.0730.6919CSoto StreetNo eastbound entrance; no exit number eastbound
Marengo StreetEastbound entrance only
East Los Angeles19.5931.5320ACity Terrace DriveEastbound exit and westbound entrance
20.2432.5720BEastern AvenueWestbound exit is part of the I-710 exit; serves CSU Los Angeles
Monterey Park20.7733.43 I-710 (Long Beach Freeway) / Valley Boulevard Long BeachEastbound exit and westbound entrance also include ramps to/from Ramona Road; I-710 north exit 22, south exits 22A-B
AlhambraI-10 Express Lanes – El Monte BuswayWestbound left exit and eastbound left entrance
21.7034.9222Fremont Avenue South Pasadena
22.7236.5623AAtlantic Boulevard Monterey Park
23.3837.6323BGarfield Avenue Alhambra
San GabrielRosemead line24.2238.9824New Avenue Monterey Park
24.7239.7825ADel Mar Avenue San GabrielEastbound exit and westbound entrance for Express Lanes only
25.2340.6025BSan Gabriel Boulevard
Rosemead25.7341.4126AWalnut Grove Avenue
RosemeadEl Monte line26.3542.4126B SR 19 (Rosemead Boulevard) PasadenaAccess to Flair Drive eastbound
El Monte27.3544.0227Temple City Boulevard RosemeadWestbound exit and entrance
Baldwin Avenue El MonteEastbound exit and entrance
28.0645.1628Santa Anita Avenue El Monte
28.8946.4929APeck Road South
28.94–
29.22
46.57–
47.03
29BPeck Road North, Valley BoulevardWestbound exits signed as 29B (Valley Boulevard) and 29C (Peck Road North)
I-10 Express LanesEast end of Express Lanes
29.9748.2330Garvey Avenue, Durfee AvenueWestbound exit and eastbound entrance
Baldwin Park30.54–
30.59
49.15–
49.23
31A I-605 (San Gabriel River Freeway)Eastbound exits signed as 31A (south) and 31B (north); I-605 exit 22
30.9349.7831BFrazier StreetSigned as exit 31C eastbound; no eastbound entrance
31.6150.8732ABaldwin Park Boulevard Baldwin Park
32.0551.5832BFrancisquito Avenue La PuenteNo eastbound entrance
32.7452.6933Puente Avenue Industry
West Covina33.8554.4834APacific Avenue, West Covina ParkwaySigned as exit 34 eastbound
34.2455.1034BSunset Avenue West CovinaWestbound exit only
34.7855.9735Vincent Avenue, Glendora Avenue
35.8957.7636 SR 39 (Azusa Avenue, CR N8 south)
36.8759.3437ACitrus Street Covina
37.4060.1937BBarranca Street
37.9060.9938AGrand Avenue
38.3961.7838BHolt Avenue
San Dimas39.8564.1340Via Verde
Pomona41.4166.6441Kellogg DriveNo eastbound entrance; serves Cal Poly Pomona
PomonaSan Dimas line41.8367.3242A SR 57 (Orange Freeway) to I-210 Santa AnaSigned as exit 42 westbound; SR 57 north was former I-210 west; SR 57 north exit 21, south exits 22A-B
42.0767.7142B SR 71 south (Chino Valley Freeway) / Campus Drive CoronaWestbound exit is via exit 44; SR 71 exit 15
Pomona43.0569.2843Fairplex Drive La VerneWestbound exit is part of exit 44; serves Los Angeles County Fair
43.5870.1444Dudley Street
44.6771.8945AWhite AvenueWestbound exit is via exit 45
45.1272.6145BGarey Avenue, Orange Grove Avenue PomonaSigned as exit 45 westbound
45.8073.7146Towne Avenue
Claremont47.1375.8547Indian Hill Boulevard Claremont
San BernardinoMontclair48.3377.7848Monte Vista Avenue
48.8978.6849Central Avenue
OntarioUpland line50.0380.5250Mountain Avenue Mount Baldy
51.1382.2951 SR 83 (Euclid Avenue) Ontario, Upland
Ontario52.9085.13534th Street
53.7686.5254Vineyard Avenue
54.8288.2255AHolt BoulevardEastbound exit is via exit 54; former US 99 north
55B Archibald Avenue Ontario AirportSigned as exit 55 eastbound
55.8389.8556Haven Avenue
56.8491.4857Milliken Avenue
57.6092.7058 I-15 (Ontario Freeway) Corona, San Diego, Barstow, Las VegasSigned as exits 58A (north) and 58B (south) eastbound; I-15 north exit 109, south exits 109A-B
58.7994.6159Etiwanda Avenue, Valley BoulevardValley Blvd was former US 99 south
Fontana60.8397.9061Cherry Avenue
62.84101.1363Citrus Avenue
63.88102.8064Sierra Avenue Fontana
Bloomington66.15106.4666Cedar Avenue Bloomington
Rialto67.33108.3668Riverside Avenue Rialto
Colton68.36110.0169Pepper Avenue
69.62112.0470ARancho Avenue
70.28113.1070B9th Street Downtown Colton
70.91114.1271Mt. Vernon Avenue, Valley Boulevard, Sperry DriveValley Boulevard was former US 99 north
San Bernardino71.90115.7172 I-215 San Bernardino, Barstow, RiversideFormer I-15E / US 91 / US 395; east end of San Bernardino Freeway;[30] west end of Redlands Freeway; I-215 north exit 40A-B, south exit 40
72.92117.3573Waterman AvenueSigned as exits 73A (south) and 73B (north) eastbound
73.93118.9874 Tippecanoe Avenue, Anderson Street San Bernardino International Airport
Loma Linda74.96120.6475Mountain View Avenue Bryn Mawr
Loma LindaRedlands line75.96122.2576California Street
Redlands76.97123.8777AAlabama Street
77.29124.3977B SR 210 west (Foothill Freeway) to SR 330 north Pasadena, Running SpringsFormer SR 30 west; SR 210 east exits 85A-B
77.45124.6477CTennessee Street
78.56126.4379 SR 38 (Orange Street) / 6th Street Downtown Redlands
79.53127.9980University StreetEastbound exit and westbound entrance
Cypress AvenueWestbound exit and eastbound entrance
80.79130.0281Ford Street, Redlands BoulevardRedlands Boulevard was former US 99 north
Yucaipa81.95131.8982Wabash AvenueWestbound exit and eastbound entrance
83.16133.8383Yucaipa Boulevard Yucaipa
84.69136.3085Oak Glen Road, Live Oak Canyon Road
85.63137.81Wildwood Rest Area
Eastbound only
RiversideCalimesa86.84139.7687County Line Road
87.68141.1188Calimesa Boulevard CalimesaFormer US 99 north
88.74142.8189Singleton RoadWestbound exit and eastbound entrance
89.87144.6390Cherry Valley Boulevard Cherry Valley
90.88146.26Brookside Rest Area
Westbound only
Beaumont92.35148.6292Oak Valley Parkway
93.49150.4693 SR 60 west (Moreno Valley Freeway) RiversideLeft exit westbound; no westbound entrance; former US 60 west
6th Street BeaumontEastbound exit and westbound entrance; former US 60 east / US 99 south
94.39151.9194 SR 79 south (Beaumont Avenue)
95.03152.9495Pennsylvania AvenueWestbound exit and eastbound entrance
Banning96.13154.7196Highland Springs Avenue
98.15157.9698Sunset Avenue
98.78158.979922nd Street Downtown Banning
99.67160.40100 SR 243 south (8th Street) Idyllwild
100.68162.03101Hargrave Street Idyllwild
101.58163.48102Ramsey StreetWestbound exit and eastbound entrance; former US 60 west / US 99 north
103.36166.34103Malki RoadFormerly Fields Road
104.48168.14104Morongo Trail CabazonFormer US 99 south; formerly Apache Trail
106.22170.94106Main Street CabazonFormer US 99 north
111.37179.23110Railroad Avenue, Haugen–Lehmann Way WhitewaterFormerly Verbenia Avenue
112.02180.28111 SR 111 south Palm SpringsEastbound exit and westbound entrance
Palm Springs113.07181.97Whitewater Rest Area
114.05183.55114Whitewater
116.51187.50117 SR 62 east Twentynine Palms, Yucca Valley
Palm Springs119.95193.04120Indian Canyon Drive North Palm SpringsFormerly Indian Avenue
122.96197.88123Gene Autry Trail, Palm Drive Desert Hot Springs
Cathedral City126.31203.28126Date Palm Drive
Rancho Mirage130.18209.50130Bob Hope Drive, Ramon Road Palm Springs
Palm Desert131.33211.36131Monterey Avenue Thousand Palms
133.71215.19134Cook Street
137.27220.91137Washington Street
Indio139.16223.96139Indio Boulevard, Jefferson Street IndioIndio Boulevard was former US 99 south / SR 86 south
141.56227.82142Monroe Street Central Indio
142.56229.43143Jackson Street
143.77231.38144 To SR 111 (Golf Center Parkway)
Coachella144.65232.79145 SR 86 south (Expressway) Brawley, El CentroWestbound exit is via exit 146; former SR 86S
145.71234.50146Dillon Road Coachella
158.82255.60Cactus City Rest Area
161.94260.62162Frontage Road
168.37270.97168Cottonwood Springs Road Mecca, Twentynine PalmsFormer SR 195
172.89278.24173Summit Road Chiriaco Summit
176.94284.76177Hayfield Road
181.87292.69182Red Cloud Road
188.83303.89189Eagle Mountain Road
191.92308.87192 SR 177 (Rice Road) / CR R2 Desert Center
201.22323.83201Corn Springs Road
216.76348.84217Ford Dry Lake Road
221.87357.07222Wiley's Well Road – Wiley's Well Rest Area
231.94373.27232 Mesa Drive Blythe Airport, Mesa VerdeFormer US 60 east
235.97379.76236 I-10 Bus. east / SR 78 west (Neighbours Boulevard) Brawley
Blythe238.97384.58239Lovekin Boulevard Blythe
239.98386.212407th Street Blythe
240.99387.84241 US 95 north (Intake Boulevard) Needles, FairgroundsWest end of US 95 overlap
242.92390.94243 I-10 Bus. west / Riviera DriveFormer US 60 west
Agricultural Inspection Station (westbound only)
243.31391.57 I-10 east / US 95 southContinuation into Arizona
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  1. 1 2 Exit number follows I-5 rather than I-10.

Spur to US 101

The legislative definition of Route 10 includes a spur from Interstate 5 (the Golden State Freeway) west to U.S. Route 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, U.S. Route 70 and U.S. Route 99 long before the Golden State Freeway opened. It was added to the Interstate Highway System by 1958 as Interstate 110, but in 1968 it was removed from the system, becoming a Route 10 spur.

This road is signed only for the roads it feeds into: US 101 northbound and I-10 eastbound. It has only two interchanges between its ends: a westbound exit off of the spur at Mission Road immediately before merging with U.S. Route 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).[1] There is no access from the I-10 spur to I-5.[11]

Exit list
The entire route is in Los Angeles, Los Angeles County.

mi[1]kmExit[31]DestinationsNotes
0.00.0 US 101 north (Santa Ana Freeway)Western terminus of San Bernardino Freeway; no access to US 101 south; US 101 exit 1D
0.10.16Mission RoadWestbound exit and eastbound entrance; also includes access from Pleasant Avenue and northbound US 101 (via exit 1D) onto entrance ramp
0.60.9719State Street to Soto StreetEastbound exit and westbound entrance
1.01.6 I-10 east (San Bernardino Freeway east)No access to I-10 west; freeway continues as I-10 east
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also

References

  1. 1 2 3 4 5 Warring, KS (April 18, 2008). "Interstate 10 Freeway Interchanges" (PDF). California Numbered Exit Uniform System. California Department of Transportation. Retrieved February 5, 2009.
  2. 1 2 3 "Interstate Highway Types and the History of California's Interstates". California Highways. Retrieved November 29, 2011.
  3. "Interstate 10". California Highways. Retrieved November 29, 2011.
  4. Adderly, Kevin (December 31, 2014). "Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways as of December 31, 2014". Route Log and Finder List. Federal Highway Administration. Retrieved December 6, 2015.
  5. California Legislature. "Sections 250–257". Streets and Highways Code. Legislative Counsel of California. Retrieved November 29, 2011.
  6. California Legislature. "Sections 260–284". Streets and Highways Code. Legislative Counsel of California. Retrieved November 29, 2011.
  7. California Department of Transportation. "Officially Designated Scenic Highways". California Department of Transportation. Retrieved December 18, 2009.
  8. California Department of Transportation (2007). 2007 Named Freeways, Highways, Structures and Other Appurtenances in California (PDF). California Department of Transportation. p. 63. Retrieved March 28, 2007.
  9. California Department of Transportation (2006). 2006 Named Freeways, Highways, Structures and Other Appurtenances in California (PDF). California Department of Transportation. p. 62. Archived from the original (PDF) on June 16, 2007. Retrieved March 28, 2007.
  10. 1 2 3 4 5 Rand McNally (2008). The Road Atlas (Map). Chicago: Rand McNally. pp. 15, 17, 18–19.
  11. 1 2 3 4 Thomas Brothers (1999). Los Angeles and Orange Counties Street Guide and Directory (Map). Thomas Brothers. pp. 671, 631, 632, 633, 634, 635, 636, 596, 597, 637, 638, 598, 599, 639, 640, 600, 641.
  12. Masters, Nathan (September 10, 2012). "Creating the Santa Monica Freeway". KCET. Retrieved 4 July 2016. Photo caption: Opening of the Interstate 10 freeway into Santa Monica on January 5, 1966.
  13. Dimassa, Cara Mia (November 27, 2001). "Freeway a Mess? Stop and Take a Look at Yourself". Los Angeles Times. Retrieved July 4, 2016.
  14. 1 2 Thomas Brothers (1999). San Bernardino and Riverside Counties Street Guide and Directory (Map). Thomas Brothers. pp. 601, 602, 603, 604, 605, 606, 607, 608, 648, 649, 689, 690, 720, 721, 722, 723, 724, 725, 726, 756, 757, 758, 788, 390, 819, 5410, 5471, 391, 392, 5491.
  15. Rand McNally (1926). California (Map). Chicago: Rand McNally. Archived from the original on July 26, 2011. Retrieved November 29, 2011.
  16. United States Numbered Highways. American Association of State Highway Officials. 1927. Missing or empty |title= (help)
  17. Rand McNally (1926). Los Angeles and Vicinity (Map). Chicago: Rand McNally. Archived from the original on May 25, 2011. Retrieved November 29, 2011.
  18. 1 2 "Chronology of California Highways 1915–1932". California Highways. Retrieved November 29, 2011.
  19. 1 2 Droz, Robert V. "East–West Routes". U.S. Highways. Retrieved November 29, 2011.
  20. Rand McNally (1933). Los Angeles and Vicinity (Map). Chicago: Rand McNally. Archived from the original on July 26, 2011. Retrieved November 29, 2011.
  21. 1 2 H.M. Gousha (1942). Los Angeles and Vicinity (Map). H.M. Gousha. Archived from the original on May 25, 2011. Retrieved November 29, 2011.
  22. Masters, Nathan (August 15, 2012). "L.A.'s First Freeways". KCET. Retrieved April 4, 2013.
  23. "Chronology of California Highways 1933–1946". California Highways. Retrieved November 29, 2011.
  24. California Department of Transportation (January 1, 2006). California Log of Bridges on State Highways. California Department of Transportation. Retrieved November 29, 2011.
  25. "The Northridge Earthquake: Progress Made, Lessons Learned in Seismic-Resistant Bridge Design". Public Roads. Federal Highway Administration. Summer 1994. Retrieved November 29, 2011.
  26. "Metro ExpressLanes to Open on San Bernardino (10) Freeway". Los Angeles: KNBC-TV. February 22, 2013. Retrieved February 28, 2013.
  27. Brunell, Natalie; Terlecky, Megan (July 19, 2015). "Bridge Collapses on I-10 in Desert Center, Traps Vehicle". Palm Springs, CA: KESQ-TV. Retrieved July 19, 2015.
  28. "Bridge over 10 Fwy East of Coachella Collapses into Flood Waters". Los Angeles: KABC-TV. July 20, 2015. Retrieved July 20, 2015.
  29. San Bernardino Associated Governments. "Measure: Freeway Projects". San Bernardino Associated Governments. Retrieved February 28, 2009. line feed character in |publisher= at position 15 (help); line feed character in |author= at position 15 (help)
  30. 1 2 California Department of Transportation (2014). 2014 Named Freeways, Highways, Structures and Other Appurtenances in California (PDF). California Department of Transportation. Retrieved June 20, 2015.
  31. Google (May 15, 2015). "Map of the I-10 spur (San Bernardino Freeway)" (Map). Google Maps. Google. Retrieved May 15, 2015.
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Interstate 10
Previous state:
Terminus
California Next state:
Arizona
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