
The Bayshore Freeway is a 56.4-mile part of US Route 101 in the San Francisco Bay Area of the US state of California. The Bay Shore Highway was created in 1923, connecting the San Francisco city limits and San Mateo County. The highway was extended to San Jose in 1925, and to Palo Alto in 1932, and its initial lack of a median barrier made it accident-prone. The Bayshore Highway was completed in 1937, and US Route 101 signs were moved to it from El Camino Real, which became US Route 101 Alternate. The highway became California's first freeway in 1940.