Diversion Dam and Deer Flat Embankments

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 dams are components of the U.S. Bureau of Reclamation's Boise Project, and were designed to provide irrigation water to 500000 acre of Treasure Valley farmland in conjunction with the New York Irrigation District (New York Canal). The Boise River Diversion Dam also provides hydroelectric generation capacity. The dams were listed on the National Register in 1976.

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