Experimental Breeder Reactor No. 1 Arco, ID

On December 20, 1951, the EBR-I produced the first usable amounts of electricity created by nuclear means; in July 1963, it was the first reactor to achieve a self-sustaining chain reaction using plutonium instead of uranium as the major component in the fuel. In addition, the EBR-I was the first reactor to demonstrate the feasibility of using liquid metal at high temperatures as a reactor coolant.

Quick Facts

Go Historic ID: 265869
Names: Experimental Breeder Reactor No. 1
Location: Arco
Butte County
Idaho
United States
North America

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Timeline

21 Dec 1965: Experimental Breeder Reactor No. 1 designated a National Historic Landmark
15 Oct 1966: Experimental Breeder Reactor No. 1 added to National Register of Historic Places

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National Register Data

Experimental Breeder Reactor No. 1 has been listed on the National Register of Historic Places with the following information. Note: some of this data may have become outdated since the listing date. View full NRHP data →

National Register ID: 66000307
Date Listed: 19661015
Name: Experimental Breeder Reactor No. 1
Address: National Reactor Testing Station
City/Town: Arco
County: Butte
State: Idaho
Category: building
Creators: Atomic Energy Commission
Level of Significance: national
Years of Significance: 1950; 1964
Areas of Significance: SCIENCE