Cesar Chavez Street (formerly Army Street) is an east–west street in San Francisco, California, United States. The street was renamed in 1995 in honor of American labor leader and Latino American civil rights activist, Cesar Chavez. It was widened in the middle of the 20th century to serve as a thoroughfare between the 101 and 280 freeways to the unbuilt Mission Freeway. It starts at Pier 80 in the Bayview neighborhood and ends at Douglass Street in the Noe Valley. The intersection of Chavez and Mission is the heart of the micro-neighborhood locally known as "La Lengua."