West Side Rising: How San Antonio's 1921 Flood Devastated a City and Sparked a Latino Environmental Justice Movement

On September 9, 1921, a tropical depression stalled just north of San Antonio and within hours overwhelmed its winding network of creeks and rivers. Floodwaters ripped through the city’s Latino West Side neighborhoods, killing more than eighty people. Meanwhile a wall of water crashed into the central business district on the city’s North Side, wreaking considerable damage.

The city’s response to this disaster shaped its environmental policies for the next fifty years, carving new channels o...