The West Side continues to be home to third and fourth-generation Mexican immigrants, as well as 21st-century first-generation Mexican immigrants. The Neighborhood House continues to serve the needs on the residents of the lower West Side. Since the lock and dam system on the Upper Mississippi River was completed in the 1950s, flooding on the West Side flats has become a rarity, and quality housing for low- and middle-income families has been built there. Much of the activity is now geared toward preserving Mexican traditions, with programs to celebrate music, ballet, and history of the Mexican immigrants in Saint Paul. The West Side bustles each year to celebrate "Cinco de Mayo", "El Grito", and "Día de la Independencia".