California State Route 71

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State Route 71

SR 71 highlighted in red
Route information
Maintained by Caltrans
Length15 mi[1] (24 km)
Major junctions
South end SR 91 in Corona
Major intersections
North end I-10 / SR 57 in San Dimas
CountryUnited States
CountiesRiverside, San Bernardino, Los Angeles
Highway system
SR 70 SR 72

State Route 71 (SR 71) is a 15-mile (24 km) state highway in the U.S. state of California. Serving Riverside, San Bernardino, and Los Angeles counties, it runs from SR 91 in Corona to the Kellogg Interchange with I-10 and SR 57 on the border of Pomona and San Dimas. The segment from SR 91 to SR 83 in Chino Hills is called the Corona Freeway, formerly the Corona Expressway and before then the Temescal Freeway. SR 71 is designated as the Chino Valley Freeway between SR 83 and the Kellogg Interchange.

Route description

Beginning at its southern terminus, SR 91 in Corona, SR 71 is an expressway for a half-mile when it intersects with Pomona Rincon Road. After this intersection, SR 71 becomes a freeway up to Rio Rancho Road before reverting to an expressway up to Mission Boulevard. (Previously, it was an expressway until its northern terminus, but this segment was upgraded to a freeway in 2012.) The route becomes a short freeway for about a mile until it meets at the Kellogg Interchange in San Dimas, where it terminates at I-10 and SR 57.

As of December 2016, all traffic signals were removed. Traffic entering and exiting the roads that lead into the nearby neighborhoods (North Ranch Road, Old Pomona Road, and Phillips Drive) may no longer enter or exit northbound due to added barriers in the highway's median. However, until 2021, southbound traffic could use these streets. (North Ranch Road, Old Pomona Road, and Phillips Drive can enter the highway via a stop sign.) These streets have been completely closed to southbound access as of 2021. Just south of the Mission Boulevard exit, all aspects of the highway, such as its alignment, lane width, pavement, barriers, and access, 'upgrade' to freeway standards.

The section of the highway between Corona and Chino is notorious for thick winter fogs at dawn and dusk, resulting in many automobile collisions when drivers fail to slow down due to reduced visibility. Residents of Los Serranos (now Chino Hills) recall being awakened by sounds of crinkling bumpers, fenders, and headlights.

As this freeway/expressway serves as an important northwest-southeast corridor between the cities in the Pomona and San Gabriel valleys (eastern Los Angeles County) and the cities of western Riverside County, it is heavily traveled. It is used as an alternative to SR 57 (the Orange Freeway) situated to the west and I-15 (the Ontario Freeway) located to the east.

When the route runs through Chino Hills and Chino, there is a high-occupancy vehicle lane available for use; however, this carpool lane ends when the route enters Riverside County (to the south) and Los Angeles County (to the north). The route is a four-lane highway between SR 91 and Central Avenue (excluding HOV lanes), a six-lane highway (excluding HOV lanes) from Central Avenue to SR 60, and again a four-lane highway from SR 60 to I-10/SR 57.

SR 71 is part of the California Freeway and Expressway System,[2] and is part of the National Highway System,[3] a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.[4] SR 71 is eligible for the State Scenic Highway System;[5] however, it is not designated as a scenic highway by Caltrans.[6]

SR 71 north of Corona


The original routing of SR 71, according to the 1934 listing, was from US 80 (now I-8), in San Diego north to US 66 (now SR 66), near Claremont via Lake Elsinore and Temecula.[7] When the portion between San Diego and Temecula was redesignated US 395, SR 71 was rerouted to run from Pomona to Aguanga. In 1973, it was cut back to its present terminus in Corona, with the portion between Corona and Temecula becoming I-15 and the portion between Temecula and Aguanga becoming SR 79 and SR 371. The early section of the Chino Valley Freeway was built in 1971 from the Kellogg Interchange to SR 60 (the Pomona Freeway). The section from SR 60 to SR 91 (the Riverside Freeway) was completed in March 1998.

In September 2008, construction began on the Mission 71 Project in Pomona. A bridge was constructed to allow Mission Boulevard to pass over SR 71, which now has entrance and exit ramps to Mission. Also, the intersection with Ninth Street was closed. The freeway was extended south to the former intersection at Ninth Street, where it resumes expressway status to the intersection with Old Pomona Road.[8] The construction project was completed in December 2011.[9]


The City of Pomona is currently working with Caltrans to convert the rest of SR 71 within its borders from its current status as a four-lane expressway to a full eight-lane freeway.[10][11] This project is underway and is expected to be fully complete by 2027.[12] Additionally, the Riverside County Transportation Commission plans to construct a two-lane flyover ramp between eastbound SR 91 and northbound SR 71 to replace the current one-lane loop ramp.[13]

Exit list

Except where prefixed with a letter, postmiles were measured on the road as it was in 1964, based on a west-to-east alignment (including its original eastern segment that extended through Temecula and Anza), and do not necessarily reflect current mileage. R reflects a realignment in the route since then, M indicates a second realignment, L refers to an overlap due to a correction or change, and T indicates postmiles classified as temporary (for a full list of prefixes, see California postmile § Official postmile definitions).[14] Segments that remain unconstructed or have been relinquished to local control may be omitted. The numbers reset at county lines; the start and end postmiles in each county are given in the county column.

RIV R3.03-R0.00
CoronaR3.03 SR 91 (Riverside Freeway) – Riverside, Beach CitiesSouthern terminus of SR 71; interchange; southbound exit and northbound entrance; SR 91 exit 45
2.44Pomona Rincon RoadAt-grade intersection; government only access; downgrades to expressway
San Bernardino
SBD R8.48-R0.00
ChinoChino Hills lineR7.984
SR 83 north (Euclid Avenue) / Butterfield Ranch Road
Chino HillsR6.525Pine Avenue
R4.897Soquel Canyon Parkway, Central Avenue
ChinoChino Hills lineR3.358
SR 142 west (Chino Hills Parkway) / Ramona Avenue
R1.8210Grand Avenue, Edison Avenue
R0.9111Chino AvenueSigned as exit 11A southbound
Chino HillsR0.0912ARiverside Drive, Peyton DriveSigned as exit 11B southbound; no southbound entrance
Los Angeles
LA R4.70-R0.34
SR 60 west (Pomona Freeway) – Los Angeles
Southbound exit is via exit 13; SR 60 exit 29A eastbound
SR 60 east (Pomona Freeway) – Riverside
Northbound exit is via exit 12A; SR 60 exit 29B westbound
R3.6113Rio Rancho Road
North end of freeway (southbound only)
1.92Old Pomona RoadClosed; former southbound exit and entrance; at-grade intersection
-N. Ranch RoadClosed; former southbound exit and entrance; at-grade intersection
-W. Phillips DriveClosed; former southbound exit and entrance; at-grade intersection
1.92Ninth StreetClosed; former at-grade intersection
South end of freeway (southbound only)
1.6214BMission BoulevardFormer US 60
1.24Pomona BoulevardClosed; former northbound exit and southbound entrance

Holt Avenue, Valley Boulevard to I-10 east – San Bernardino
Former US 99 south
PomonaSan Dimas lineR0.3415
I-10 west (San Bernardino Freeway) – Los Angeles
Southern end of Kellogg Interchange; I-10 exit 42B eastbound
San DimasR0.34

SR 57 north (Orange Freeway) to I-210
Northern terminus of SR 71; northern end of Kellogg Interchange; former I-210 west; no access to SR 57 south; SR 57 exit 22C southbound
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b California Department of Transportation (July 2007). "Log of Bridges on State Highways". Sacramento: California Department of Transportation.
  2. ^ "Article 2 of Chapter 2 of Division 1". California Streets and Highways Code. Sacramento: California Office of Legislative Counsel. Retrieved February 6, 2019.
  3. ^ Federal Highway Administration (March 25, 2015). National Highway System: Los Angeles, CA (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved October 13, 2017.
  4. ^ Natzke, Stefan; Neathery, Mike & Adderly, Kevin (June 20, 2012). "What is the National Highway System?". National Highway System. Washington, DC: Federal Highway Administration. Retrieved July 1, 2012.
  5. ^ "Article 2.5 of Chapter 2 of Division 1". California Streets & Highways Code. Sacramento: California Office of Legislative Counsel. Retrieved February 6, 2019.
  6. ^ California Department of Transportation (August 2019). "Officially Designated State Scenic Highways and Historic Parkways" (XLSX). Sacramento: California Department of Transportation. Retrieved October 13, 2017.
  7. ^ "Map of 1963 routes". CA Highways. Retrieved 2008-07-27.
  8. ^ "Mission 71 Project". City of Pomona. Archived from the original on March 6, 2012. Retrieved June 24, 2015.
  9. ^ Rodriguez, Monica (December 8, 2011). "Pomona's 71 Freeway/Mission Blvd. interchange is fully open". Inland Valley Daily Bulletin. Ontario, California. Retrieved June 24, 2015.
  10. ^ Rodriguez, Monica (January 8, 2013). "Pomona council selects option for improving 71 Freeway". Inland Valley Daily Bulletin. Ontario, California. Retrieved June 24, 2015.
  11. ^ "SR 71 Gap Project Highway to Freeway Conversion (I-10 to SR 60)". City of Pomona. Retrieved June 24, 2015.
  12. ^ "SR-71 Expressway to Freeway Conversion Project". Caltrans District 7. State of California. Retrieved September 4, 2021.
  13. ^ "71/91 Interchange Project". Riverside County Transportation Commission. Retrieved January 21, 2019.
  14. ^ a b California Department of Transportation. "State Truck Route List". Sacramento: California Department of Transportation. Archived from the original (XLS file) on June 30, 2015. Retrieved June 30, 2015.
  15. ^ California Department of Transportation, All Traffic Volumes on CSHS, 2005 and 2006
  16. ^ California Department of Transportation, California Numbered Exit Uniform System, State Route 71 Freeway Interchanges, Retrieved on 2009-02-07.

External links