California State Route 71

State Route 71
Chino Valley Freeway
SR 71 highlighted in red
Route information
Defined by Streets and Highways Code § 371
Maintained by Caltrans
Length:	16 mi[1] (26 km)
Existed:	1934 – present
Major junctions
South end:	SR 91 in Corona
	SR 142 in Chino Hills SR 60 in Pomona
North end:	I-10 / SR 57 in San Dimas
Location
Counties:	Riverside, San Bernardino, Los Angeles
Highway system
State highways in California Interstate U.S. State Pre-1964 History Unconstructed Deleted Freeway Scenic ← SR 70 SR 72 →

State Route 71 (SR 71) is the Chino Valley Freeway, formerly the Corona Expressway and before then the Temescal Freeway, a freeway/highway of about 15 miles (24 km) in length located entirely within Southern California, United States. Contrary to its name, this highway is a limited-access freeway in San Bernardino and Riverside counties; in Los Angeles County it is only an expressway.

Route description

This route is part of the California Freeway and Expressway System^[2] and is eligible for the State Scenic Highway System.^[3] However, it is not designated as a scenic highway by Caltrans.^[4] Other names of this highway include the "Police Officer Daniel T. Fraembs Memorial Highway" for the segment within the City of Pomona (honoring a Pomona police officer killed in the line of duty),^[5] and the "Mayor James Thalman and Mayor Michael Wickman Memorial Highway" for the portion between Soquel Canyon Parkway and Pine Avenue in Chino Hills (honoring two of the members of the first Chino Hills City Council who both later served separately as the city's mayor).^[6]

Beginning at its northern terminus at the Kellogg Interchange complex in San Dimas to a short distance south of Mission Boulevard in Pomona, it is a four-lane freeway. From that point and through most of Pomona, it is a four-lane expressway with at-grade intersections with other, 'regular' streets.

As of December 2016, all signals on the expressway portion have been removed. Traffic entering and exiting the roads (North Ranch Road, Old Pomona Road, and Phillips Dr.) that lead into the nearby neighborhoods may no longer enter or exit Northbound due to added barriers in the center of the highway. However, CA-71 and these roads may enter and exit if going Southbound. With North Ranch Road, Old Pomona Road, and Phillips Drive entering via a stop sign. Just north of the Rio Rancho Road exit, all aspects of the highway 'upgrade' to freeway standards in its alignment, lane width, pavement, barriers, access, etc. The freeway portion of the route ends at the San Bernardino/Riverside County line, where it reverts to a divided four-lane expressway to its terminus at its junction with the Riverside Freeway (SR 91) in Corona.

The section of highway between Chino and Corona is notorious for thick winter fogs at dawn and dusk, resulting in many automobile collisions when drivers fail to slow down despite 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 diagonally aligned (northwest-southeast) commuter traffic corridor between the cities in the Pomona Valley (eastern Los Angeles County) and the cities of western Riverside County, it is heavily travelled and is used as an alternative to the Orange Freeway, State Route 57 (SR 57) located to the west and the Ontario Freeway, Interstate 15 (I-15) located to the east.

State Route 71 north of Corona

History

The original routing of Route 71 according to the 1934 listing was from U.S. 80, now Interstate 8, in San Diego north to U.S. Route 66, now State Route 66, near Claremont via Lake Elsinore and Temecula.^[7] When the portion between San Diego and Temecula was redesignated U.S. 395, Route 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 Interstate 15 and the portion between Temecula and Aguanga becoming Route 371. The early section of the Chino Valley Freeway was built in 1971 from the Kellogg Interchange to the Pomona Freeway. The section from SR 60 to 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 Route 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 trying to work with Caltrans to convert the rest of Route 71 within its borders from an expressway to a full freeway.^[10][11]

Major intersections

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 an overlap due to a correction or change, and T indicates postmiles classified as temporary (for a full list of prefixes, see the list of postmile definitions).^[12] 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.

County	Location	Postmile [12][13][14]	Exit [15]	Destinations	Notes
Riverside RIV R3.03-R0.00	Corona	R3.03	—	SR 91 (Riverside Freeway) – Riverside, Beach Cities	Interchange; southbound exit and northbound entrance; south end of SR 71; SR 91 exit 45
San Bernardino SBD R8.48-R0.00	Chino Hills	R7.98	4	SR 83 north (Euclid Avenue) / Butterfield Ranch Road
		R6.52	5	Pine Avenue
		R4.89	7	Soquel Canyon Parkway, Central Avenue
	Chino–Chino Hills line	R3.35	8	SR 142 west (Chino Hills Parkway) / Ramona Avenue
		R1.82	10	Grand Avenue, Edison Avenue
		R0.91	11	Chino Avenue	Signed as exit 11A southbound
	Chino Hills	R0.09	12A	Riverside Drive, Peyton Drive	Signed as exit 11B southbound; no southbound entrance
Los Angeles LA R4.70-R0.34	Pomona	R4.31	12B	SR 60 west (Pomona Freeway) – Los Angeles	Southbound exit is via exit 13; SR 60 east exit 29A
		R4.31	12	SR 60 east (Pomona Freeway) – Riverside	Northbound exit is via exit 12A; SR 60 west exit 29B
		R3.61	13	Rio Rancho Road
		​	North end of freeway
		1.92		Ninth Street	Closed; former at-grade intersection
		​	South end of freeway
		1.62	14B	Mission Boulevard – Pomona, Riverside, Brea, Fullerton	Former US 60
		1.24	—	Pomona Boulevard	Closed; was northbound exit and southbound entrance
		R1.48	14A	To I-10 east / Holt Avenue, Valley Boulevard – San Bernardino	Former US 99 south
		R0.34	15	I-10 west (San Bernardino Freeway) – Los Angeles	Northbound exit temporarily closed; I-10 east exit 42B
	San Dimas	R0.34		SR 57 north (Orange Freeway) to I-210	Noaccess to SR 57 south; north end of SR 71; former I-210 west; SR 57 south exit 22C
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Closed/former       Concurrency terminus       Incomplete access

See also

• California Roads portal

References

External links

Route map: Google

Wikimedia Commons has media related to California State Route 71.

• Caltrans: Route 71 highway conditions
• California Highways: Route 71
• California @ AARoads.com - State Route 71