The Diversion Dam and Deer Flat Embankments is the collective name given in the U.S. National Register of Historic Places program to a set of three dams in the western United States in southwestern Idaho, near Boise and Nampa. The three dams that make up the Diversion Dam and Deer Flat Embankments are: * Boise River Diversion Dam * Deer Flat Upper Embankment * Deer Flat Lower Embankment