Cave Buttes Dam
The 928th tallest dam in the world
The Cave Buttes Dam is an earthen dam located near Cave Creek, Arizona. As a dry dam, it is the primary dam to prevent flooding in North Phoenix. Built in 1979 to replace the nearby Cave Creek Dam, it is designed to prevent flooding in the city from the Cave Creek Wash.
Dam data from Wikidata (CC0) plus curated additions. Summary from Wikipedia (CC BY-SA).