History
As part of the National Reactor Testing Station (now known as the Idaho National Laboratory), EBR-I's construction started in late 1949. The reactor itself was designed by a team led by Walter Zinn at the Argonne National Laboratory. Installation of the reactor at EBR-I took place in early 1951 and the first reaction went critical on August 24, 1951. On December 20 of that year, atomic energy was successfully harvested for the first time. The design purpose of EBR-I was not to produce electricity but instead to validate nuclear physics theory which suggested that a breeder reactor should be possible. In 1953, experiments revealed the reactor was producing additional fuel during fission, thus confirming the hypothesis. However, on November 29, 1955, the reactor at EBR-I suffered a partial meltdown due to operator error. It was subsequently repaired for further experiments.
Besides generating the world's first electricity from atomic energy, EBR-I was also the world's first breeder reactor and the first to use plutonium fuel. EBR-I was deactivated in 1964 and replaced with a new reactor, EBR-II. Landmark status for EBR-I was granted by President Lyndon Johnson and Glenn T. Seaborg on August 25, 1966.
It was declared a National Historic Landmark in 1965.
The site has been open to the public since 1976, but is only open between Memorial Day and Labor Day. Also on display at the site are two prototype reactors from the Aircraft Nuclear Propulsion Project of the 1950s.
There is also a separate facility called Experimental Breeder Reactor II.
Maps and aerial photos
Sources
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Last updated on Wednesday June 25, 2008 at 05:29:55 PDT (GMT -0700)
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