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U.S. Route 101 facts for kids

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U.S. Route 101 marker

U.S. Route 101
Route information
Length 1,540 mi (2,478 km)
Existed November 11, 1926 (1926-11-11)–present
Major junctions
South end I-5 / I-10 / SR 60 in Los Angeles, CA
North end I-5 in Tumwater, WA
States: California, Oregon, Washington
Highway system
United States Numbered Highways
List • Bannered • Divided • Replaced

U.S. Route 101, or U.S. Highway 101, (US 101) is a north–south United States Numbered Highway that goes along the West Coast of the United States. It goes through the states of California, Oregon, and Washington. It goes alongside, and often joins onto, California State Route 1 when going through California.

The route starts in Los Angeles at the junction of the Interstate 5, Interstate 10, and California State Route 60. It goes west past the north side of Downtown Los Angeles towards the coast. It meets the coast near Oxnard and goes north along the coast from here. The main cities it passes through in California is Santa Maria, San Jose, San Francisco, Santa Rosa, and Eureka, California. In San Francisco, the route goes over the Golden Gate Bridge. The main cities the route passes in Oregon is North Bend, Florence, Newport, and Astoria. These cities are small, as no large cities are on Oregon's coast. It runs near to the Interstate 5, which goes through larger cities like Salem and Portland. In Washington, the main cities it passes through is Aberdeen, Forks and Port Angeles. It ends at the Interstate 5 in Olympia. The route is about 1,540 miles (2,480 km) in total.

The route used to be the main highway along the West Coast, but now most people use the Interstate 5 to go along the coast. The US 101 used to go south to San Diego, but the part of the US 101 between here and Los Angeles was totally replaced by the I-5 in the 1960s. When it first opened, the US 101 used small roads that had already been built. In 1933, a new highway with bridges and ramps was built so it was faster for people to use.

Important intersections

I-5 in Los Angeles
I-10 in Los Angeles
I-110 in Los Angeles
I-405 in Los Angeles
I-280 / I-680 in San Jose
I-880 in San Jose
I-380 on the San BrunoSouth San Francisco city line
I-280 in San Francisco
I-80 in San Francisco
I-580 in San Rafael
US 199 northeast of Crescent City
US 20 in Newport
US 26 northeast of Cannon Beach
US 30 in Astoria
US 12 in Aberdeen
I-5 in Tumwater

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