Milner Dam is a rockfill dam near Burley in south central Idaho. It impounds the Snake River in a reservoir named Milner Lake. The dam spans the river across two islands, with three embankments. Inspections in 1988 indicated a high risk of dam failure in an earthquake. In order to pay for the $11 million cost of rebuilding the dam, the operating companies contracted with Idaho Power to build a 57.5 megawatt hydroelectric powerplant 1.5 miles (2.4 km) downstream from the dam, with Idaho Power in return loaning funds for the dam's reconstruction. The 1992 powerplant has 46 and 11.5 MW generators, with a small 800 KW generator for low-flow conditions. Water for the powerplant is drawn from the Twin Falls Canal during seasons when water is not needed for irrigation.
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