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 500,000 acres (780 sq mi; 2,000 km2) 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.

[1] The dams were listed on the National Register in 1976.

This article about a property in Idaho on the National Register of Historic Places is a stub.