The B Reactor National Historic Landmark



Updates for the 2020 season will be posted when available.



Out of an abundance of caution, the Manhattan Project National Historical Park Visitor Center is closed to the public until further notice. Registration for public tours of Hanford’s Manhattan Project National Historical Park facilities has also been postponed. Thank you for your understanding and support. Updates will be posted on our website, https://manhattanprojectbreactor.hanford.gov/.

The B Reactor National Historic Landmark is the world's first full-scale plutonium production reactor and part of the Manhattan Project National Historical Park. Sign up for a tour and learn more about the people, events, science, and engineering that led to the creation of the atomic bombs that helped bring an end to World War II.

2020 Tour Season

The U.S. Department of Energy offers free public tours of the B Reactor.

Tour season is generally from spring to fall, with varying dates and times. The list of tour dates for 2020 will be posted by early March.

Tour Details

Free of charge

Open to all ages

Open to visitors from around the world

Cameras, cell phones, and other recording devices are allowed

Food and drinks (non-alcoholic) are allowed on the bus; bottled water only inside B Reactor

There is no food or drink for sale at the visitor center

There are restrooms at the B Reactor

Tours begin and end at the visitor center located at 2000 Logston Blvd. Richland WA.

Total time commitment is 4 hours

Tour experience begins promptly with an introduction at the visitor center



Bus ride to B Reactor is about 45 minutes with interpretation along the way



The B Reactor tour lasts 2 hours

Group/School Tours

School and group tours may be available with a minimum of 20 participants. Please submit requests to BReactor@rl.gov and include the following information:

Group/School Name

Transportation (own or have access to bus, or capability of procuring charter bus)

Number of participants (students + teachers/chaperones)

Requested tour date/time (please include alternate dates for flexibility)

Purpose of the tour (e.g., current course of study for students, community organization, reunion, etc.)

Is there a special focus for tour participants (e.g. technical or scientific interest)?

Staff will evaluate your request to determine feasibility and will contact you within one 1-2 business days.

We may also be able to help you reserve seats for your large group as part of a scheduled public tour.

If you have any questions, please call the visitor center, at (509) 376-1647.

Web Links:

Learn more about the world-changing history, science and engineering behind the Manhattan Project and B Reactor, as well as the history of Native American and early settler populations at the Hanford Site, with videos produced by the B Reactor Museum Association and the Atomic Heritage Foundation.