Minidoka Dam is a storage and diversion dam for two different irrigation canals.
These would be the gates for the Gravity Canal that is on the south side of the dam. In April, they are opening the gates to start the irrigation season.
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| Same Reel Three pump houses pump the water up 30' (9m) for a total of 90' (27m). |
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| Photo via uidaho, "Minidoka Dam and Reservoir near Rupert", Archival Idaho Photograph Collection, University of Idaho Library Digital Collections, Public Domain |
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| nps "Today, the multi-faceted Minidoka Project, which provides irrigation water to more than one million acres, counts a total of seven dams and thousands of miles of canals, laterals and drains. Still at the core is the more than 100-year-old Minidoka Dam, significant as the Bureau of Reclamation’s first embankment dam and the first Federally-built dam in the Pacific Northwest to include a powerplant to supply electricity. Minidoka Dam stands only 86 feet [26m] high, but its spillway, designed to handle the great flow of the Snake River, is made of concrete and stretches 2,300 feet [701m] long, or nearly one-half of a mile." "Over the years, Minidoka Dam has undergone additions and repairs, including the current reconstruction of its spillway. A sixth generating unit was installed in the powerplant in 1927, and a seventh in 1942. Then, in the early 1990s, work began on a new powerplant, with Units 8 and 9 added in 1997. Reclamation retired the original five generators from service but preserved them as museum pieces in the original powerhouse building, where visitors still can see them." |
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| usbr "The combined generation capacity of all four units is 28.5 megawatts, with a combined flow of 8670 cubic feet per second." In 2015, the new $21.3m spillway with radial gates replaced the original spillway that used stop logs. |
