Section of Interstate Highway in California, United States
This article is about the section of Interstate 5 in California. For the entire route, see Interstate 5.
Interstate 5
I-5 highlighted in red
Route information
Maintained by Caltrans
Length
796.77 mi[1] (1,282.28 km)
History
Completed October 12, 1979
Tourist routes
Volcanic Legacy Scenic Byway
West Side Freeway from SR 152 near Santa Nella to I-580 near Tracy
NHS
Entire route
Major junctions
South end
Fed. 1 / Fed. 1D at the Mexican border in San Diego
Major intersections
SR 15 in San Diego
I-8 in San Diego
I-405 in Irvine
I-10 / US 101 / SR 60 in Los Angeles
SR 134 in Los Angeles
SR 99 near Wheeler Ridge
I-580 near Tracy
US 50 / I-80 BL in Sacramento
I-80 in Sacramento
US 97 in Weed
North end
I-5 at the Oregon state line south of Ashland, OR
Location
Country
United States
State
California
Counties
San Diego, Orange, Los Angeles, Kern, Kings, Fresno, Merced, Stanislaus, San Joaquin, Sacramento, Yolo, Colusa, Glenn, Tehama, Shasta, Siskiyou
Highway system
Interstate Highway System
Main
Auxiliary
Suffixed
Business
Future
State highways in California
Interstate
US
State
Scenic
History
Pre‑1964
Unconstructed
Deleted
Freeways
← SR 4
→ US 6
Interstate 5 (I-5) is a major north–south route of the Interstate Highway System in the United States, stretching from the Mexican border at the San Ysidro crossing to the Canadian border near Blaine, Washington. The segment of I-5 in California runs 796.77 miles (1,282.28 km)[1] across the length of the state from San Ysidro to the Oregon state line south of the Medford-Ashland metropolitan area. It is the longest interstate in California, and accounts for more than half of I-5's total length.[2]
It is the more important and most-used of the two major north–south routes on the Pacific Coast, the other being U.S. Route 101 (US 101), which is primarily coastal. I-5 links the major California cities of San Diego, Santa Ana, Los Angeles, Stockton, Sacramento, and Redding. The San Francisco Bay Area is about 80 miles (130 km) west of the highway.
I-5 is known colloquially as "the 5" to Southern California residents and "I-5" to Northern California residents due to varieties in California English. I-5 also has several named portions: the John J. Montgomery Freeway, San Diego Freeway, Santa Ana Freeway, Golden State Freeway, and West Side Freeway.[3]
^ abCite error: The named reference trucklist was invoked but never defined (see the help page).
^Staff (December 31, 2021). "Table 1: Main Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways as of December 31, 2011". Federal Highway Administration. Retrieved October 22, 2022.
^Rhodes, W.T. (January–February 1951). "Montgomery Freeway". California Highways: 34–35.
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Global Information
Fed. 1 / Fed. 1D at the Mexican border in San Diego
I-5 at the Oregon state line south of Ashland, OR
