Broadway, until 1890 Fort Street, is a thoroughfare in Los Angeles County, California, USA. The portion of Broadway from 3rd to 9th streets, in the Historic Core of Downtown Los Angeles, was the city's main commercial street from the 1910s until World War II, and is the location of the Broadway Theater and Commercial District, the first and largest historic theater district listed on the National Register of Historic Places (NRHP). With twelve movie palaces located along a six-block stretch of Broadway, it is the only large concentration of movie palaces left in the United States. Route South Broadway's southern terminus is Main Street just north of the San Diego Freeway (I-405) in Carson. From there it runs north through Athens and South Los Angeles to Downtown Los Angeles – at Olympic Blvd. entering downtown's Historic Core, in which the buildings lining Broadway form the Broadway Theater and Commercial District. Crossing 3rd Street, Broadway passes through the Civic Center including Grand Park. After crossing the US-101 (Santa Ana Freeway), signs read "North Broadway" as it enters Chinatown. It then curves northeast, passing through old railyards, crosses the Golden State Fwy. (I-5) and heads due east to its terminus at Mission Road in Lincoln Heights. History Founding and extension Broadway, one of the oldest streets in the city, was laid out as part of the 1849 plan of Los Angeles made by Lieutenant Edward Ord and named Fort Street. Fort Street began at the south side of Fort Moore Hill (a block north of Temple Street) at Sand Street (later California Street). In 1890, the name of Fort Street, from 1st Street to 10th Street, was changed to Broadway. The rest of Fort Street, from California Street to 1st Street, was changed to North Broadway. Proposal for opening Broadway through to Buena Vista Street (now North Broadway), and extending the street south into what was then part of Main Street, below Tenth Street, in order to give a continuous, wide thoroughfare from the southern city limits to the Eastside, was made as early as February 1891. The Broadway Tunnel under Fort Moore Hill was opened in 1901, extending North Broadway to Buena Vista Street at Bellevue Avenue (later Sunset Boulevard, now Cesar Chavez Avenue). A section of Broadway in South Los Angeles was originally named Moneta Avenue until 1923. In 1909, construction on a bridge across the Los Angeles River was