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39 – EBR-1

Experimental Breeder Reactor I (EBR-I), located near Arco, Idaho, holds the distinction of being the world’s first nuclear reactor to generate usable electricity. On December 20, 1951, it produced enough power to illuminate four 200-watt light bulbs, marking a pivotal moment in nuclear energy history. Beyond electricity generation, EBR-I was instrumental in demonstrating the breeder reactor concept in 1953, successfully creating more fissile material than it consumed.

Decommissioned in 1964, EBR-I was designated a National Historic Landmark in 1965 and now operates as a museum open to the public from late May through Labor Day. Visitors can explore the facility and learn about its groundbreaking contributions to nuclear science.

More Information

This is a really good video by one of my favorite YouTuber’s and he gets an extensive tour of this site. Well worth watching.

https://en.wikipedia.org/wiki/Experimental_Breeder_Reactor_I


Coordinates: 43.511812, -113.005796
Elevation: 5023 ft
Difficulty: 1
What to Expect: No info

[reblex id=’779′]

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13 Check-Ins

September 7, 2025 3:51 pm
Bike: 2003 Suzuki DR650
Difficulty: 1 / 5

Being after Labor day, it was closed for the season. I'll have to try again sometime.

Check-in photo
August 27, 2025 2:01 pm
Bike: 701
Difficulty: 1 / 5

Amazing site with good STEM history.

Check-in photo
August 27, 2025 12:47 pm
Bike: R1200GS
Difficulty: 1 / 5

This has to be my favorite site so far, and we didn't even make it inside. There is a 100% chance I'm coming back to do the tour with the family.

Check-in photo
August 19, 2025 7:38 pm
Bike: BMW R1250 GSA
Difficulty: 1 / 5

I took the tour and the reactor was a lot smaller than I expected. If you have any interest in nuclear energy, you should visit the B Reactor at Hanford, Washington.

Check-in photo
June 30, 2025 10:57 am
Bike: KLR 650
Difficulty: 1 / 5

Interesting history there. We took the guided tour. I would have never guessed that part of the reason the area was chosen was because there was so much available water.

Check-in photo
June 28, 2025 7:18 am
Bike: DR650
Difficulty: 1 / 5

Did the self guided tour. Great museum.

Check-in photo
June 27, 2025 4:28 pm
Bike: TW200
Difficulty: 1 / 5

First time in this part of the state. We took the museum tour. It was very interesting.

Check-in photo
June 22, 2025 4:06 pm
Bike: KLR650
Difficulty: 1 / 5

Another first stop for me. Interesting history here!

Check-in photo
June 22, 2025 11:21 am
Bike: 990 Adv
Difficulty: 1 / 5

And they said this could crash land without radiation risk! I am a bit skeptical.

Check-in photo
June 21, 2025 11:50 am
Bike: KTM 890
Difficulty: 1 / 5

I got this site on Alec’s 3 day 1300 mile ride day2. Another great place to check out

Check-in photo
June 21, 2025 6:35 am
Bike: GSA1250
Difficulty: 1 / 5

Interesting site. Not sure the nuclear plane would have ever left the ground, but cool we have this in our back yard!

Check-in photoCheck-in photoCheck-in photo
April 14, 2025 8:58 pm
Bike: 690 EnduroR
Difficulty: 1 / 5

This was some strange machinery. Looks like it was out of a Mad Max movie set.

Check-in photo
April 13, 2025 9:32 pm
Bike: BMW R1200GSA
Difficulty: 1 / 5

Hit this site on the way back home. 4 of 5 sites today. Friday April 11th.

Check-in photo
Check-Ins are Closed for the 2025 Challenge.

13 thoughts on “39 – EBR-1”

  1. This has to be my favorite site so far, and we didn’t even make it inside. There is a 100% chance I’m coming back to do the tour with the family.

  2. I took the tour and the reactor was a lot smaller than I expected. If you have any interest in nuclear energy, you should visit the B Reactor at Hanford, Washington.

  3. Interesting history there. We took the guided tour. I would have never guessed that part of the reason the area was chosen was because there was so much available water.

  4. Interesting site. Not sure the nuclear plane would have ever left the ground, but cool we have this in our back yard!

Comments are closed.