U.S. 395

U.S. 395

U.S. 395 is a major highway that traces the eastern slope of the Sierra Nevada and Cascade Mountains through California and Nevada. U.S. 395 begins at Exit 141 along Interstate 15 in Hesperia and travels north along Three Flags Highway to the Eastern Sierra. The highway enters the state of Nevada to serve Carson City and Reno-Sparks, then reenters California southeast of Hallelujah Junction. Beyond there, U.S. 395 continues north toward Susanville and Alturas, then leads into Oregon and Washington state before reaching the Canadian border.

Much of U.S. 395 is only two lanes wide, but increasing traffic demands resulted in expansion of U.S. 395 to four lanes in many areas, especially between SR 14 near Inyokern and SR 203 at the popular resort Mammoth Lakes area.

Business Routes

Only one business loop is assigned for U.S. 395, and it connects the highway with the city of Ridgecrest in eastern Kern County. It follows S China Lake Boulevard north into Ridgecrest, then returns west alongside SR 178 to U.S. 395 near Inyokern. AASHTO approved the designation of U.S. 395 Business from an application by the state of California on June 7, 1989.

An old business route through San Bernardino and Colton was created with the construction of a freeway alignment It was eliminated when U.S. 395 was retracted to Adelanto and Hesperia. Former U.S. 395 Business is not a designated business loop of Interstate 215, but the old alignment remains part of the urban street network in those two cities.

U.S. 395 California Guides

U.S. 395 was originally a route wholly in Washington that was extended south in 1935. It replaced portions of several existing state routes: Former SR 71 from San Diego to Lake Elsinore, SR 74 from Lake Elsinore to Perris, Former SR 18 from Riverside to San Bernardino, SR 95 from Hesperia to Inyokern, and SR 7 from Inyokern north to Bishop. It also overlapped U.S. 66 and U.S. 91 between San Bernardino and Hesperia. U.S. 6 was also extended into California in 1937, making route continuity through the Eastern Sierra.

At its longest, U.S. 395 extended south all the way to San Diego. However, U.S. 395 was replaced by Interstate 15, with most signs being removed south of Hesperia in 1973. The point of truncation was its interchange with Interstate 15 in Hesperia (Exit 141). The route originally started at the intersection of Market Street and 12th Avenue (now Park Boulevard) in downtown San Diego (along a shared segment with U.S. 80). With the construction of Interstate 15 and Interstate 215 through San Diego and the Inland Empire, U.S. 395 was decommissioned in San Diego and Riverside Counties in the 1980s.

In the city of San Diego, U.S. 395 had several alignments:

We have pages dedicated to the historic U.S. 395 route, including both directions of the route in San Diego County. For a great deal more on Historic U.S. 395 through San Diego, Riverside, and San Bernardino Counties, including the old alignments of the route through San Diego, Riverside, and San Bernardino Counties, visit Three Flags Highway (U.S. 395) by Cameron Kaiser.

The following list provides the opening dates for the various segments of modern U.S. 395 between Hesperia and the Nevada state line near Topaz Lake (based on information provided by C.J. Moon). Note that widening of U.S. 395 to four lanes in and around Independence was still underway in September 2009:

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Page Updated Thursday February 21, 2013.