August 12, 1876. On September 4 Charles Crocker notified Southern Pacific that the track had been completed on the route between San Francisco and Los Angeles. See also Weldon Canyon Ridge Route References External links History of Beale's Cut (photos, text, TV shows) Beale's Cut in the Movies Beale's Cut Filmography Mountain passes of California San Fernando Valley Transportation in the San Fernando Valley Historic trails and roads in California History of Los Angeles San Gabriel Mountains Santa Susana Mountains Santa Clarita, California El Camino Viejo Landforms of Los Angeles County, California Interstate 5