The Pueblo Flood of 1921 was the worst flood in Pueblo's history and one of the worst in Colorado history. Hundreds of people lost their lives along with tens of millions of dollars of property damage. The precise number of deaths has never been determined.
The heavy rains began west of Pueblo on June 2nd. The Arkansas River swelled to over thirteen feet. The next day there was a downpour north of Pueblo along the Fountain Creek. The flood creed on Friday, June 3 at 24 feet and flooded downtown. More flooding happened on June 4, when the Shaffer Dam broke. In 1921, the Arkansas River flowed through Pueblo's downtown at the current location of the Pueblo Riverwalk.
Pueblo Conservancy District Statute (as of 2013) – pdf
Pueblo Conservancy District Status (as of June 2014) – pdf
The Bill HB 14-1184 (2014 legislative change) – pdf
Star Journal 8-19-1923 – pdf
Ten Commandments of the Levee – pdf
Greatest Engineering Feat of the West Complete – Pueblo Chieftain January 2, 1927 – pdf