Interstate 15 in California
section of Interstate Highway in California, United States
Route 15, consisting of the contiguous segments of State Route 15 (SR 15) and Interstate 15 (I-15), is a major north–south state highway and Interstate Highway in the U.S. state of California, connecting San Diego, Riverside, and San Bernardino counties. The route consists of the southernmost 287.26 miles (462.30 km) of I-15, which extends north through Nevada, Arizona, Utah, Idaho, and Montana to the Canada–US border. It is a major thoroughfare for traffic between San Diego and the Inland Empire, as well as between Southern California; Las Vegas, Nevada; and the Intermountain West.
South of its junction at I-8 in San Diego, the highway becomes SR 15, extending about 5.59 miles (9.00 km) to I-5 in San Diego's Barrio Logan district, about 12.56 miles (20.21 km) from the Mexico–United States border, before the road runs about 0.55 miles (0.89 km) further to its terminus at 32nd Street, north of Harbor Drive. Though some maps and signs may mark SR 15 (or even I-15) as extending south through 32nd Street to Harbor Drive, the highway south of I-5 and Main Street is controlled by the City of San Diego instead of the state. The portion of Route 15 south of I-8 was initially signed as a state route because it was not up to Interstate standards, but it is being upgraded so it would become part of the Interstate Highway system in the future. In total, the entire length of Route 15 in California is 293.57 miles (472.46 km).
I-15 has portions designated as the Escondido Freeway, Avocado Highway, Temecula Valley Freeway, Corona Freeway, Ontario Freeway, Barstow Freeway, CHP Officer Larry L. Wetterling and San Bernardino County Sheriff's Lieutenant Alfred E. Stewart Memorial Highway, or Mojave Freeway. It is also known colloquially as "the 15" to residents of Southern California.
Route description
Route 15 is defined as follows in section 315 of the California Streets and Highways Code:
Route 15 is from:
(a) Route 5 in San Diego to Route 8.(b) Route 8 to the Nevada state line near Stateline, Nevada via the vicinity of Temecula, Corona, Ontario, Victorville, and Barstow.
The public source identifies “Interstate 15 in California” as section of Interstate Highway in California, United States. This brief keeps that definition visible, then builds a research path around Interstate, California and section.
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This entry incorporates text from “Interstate 15 in California” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.