B Reactor (Hanford Site)
B Reactor interior tours are suspended for construction. The DOE's B Reactor tour site projects them resuming in late summer 2027; a tourism notice says suspended for the 2027 season, with 2028 undecided. The DOE's 2026 season covers the pre-WWII tours, which see B Reactor from outside the fence.
B Reactor on the Hanford Site, part of Manhattan Project National Historical Park. Interior tours are suspended; free 2026 bus tours pass the reactor from outside the fence.
Ways to visit
Pre-WWII historic sites tour (DOE bus tour, B Reactor from outside the fence) Seasonal
The DOE lists 2026 dates from May to September. B Reactor is a stop from the bus or outside the fence; the interior is not included.
- What you see
- View from outside, Groundstours.hanford.gov, 2026-10-26
- How
- Scheduled tour · about 4 hourstours.hanford.gov, 2026-10-26
- When
- Planned 2026 dates are listed on the DOE page. Tours start at 10:00 am in May, June and September and at 8:00 am in July and August. Each tour lasts about four hours and begins and ends at the visitor center.Season: 2026-05-01 to 2026-09-26 (Planned 2026 dates from May 1 to September 26; registration opened April 1, 2026.)Calendar ↗tours.hanford.gov, 2026-10-26
- Booking
- Required · onlineRegister online for an available date. Registration for 2026 opened April 1, 2026 at 8:00 am.Book (tours.hanford.gov) ↗tours.hanford.gov, 2026-10-26
- Cost
- FreeFree of charge, per the DOE.tours.hanford.gov, 2026-10-26
- Requirements
- Minimum age: No. Open to all ages.
- Citizenship: No. Open to visitors from around the world.
- Photography: Yes. Cameras, cell phones and other recording devices are allowed.
Atomic Explorations ranger program (park visitor center, free, no reservations) Seasonal
- What you see
- Visitor center, Exhibitstours.hanford.gov, 2026-10-26
- How
- Scheduled tour, Walk intours.hanford.gov, 2026-10-26
- When
- MonTueWedThuFriSatSunOffered May 25 to September 5, Monday to Saturday at 2:00 pm, in the park visitor center at 2000 Logston Boulevard, Richland.Season: 2026-05-25 to 2026-09-05 (May 25 to September 5, 2026, Monday to Saturday at 2:00 pm.)tours.hanford.gov, 2026-10-26
- Booking
- Not requiredPrograms are free, and reservations are not required.tours.hanford.gov, 2026-10-26
- Cost
- Freetours.hanford.gov, 2026-10-26
- Requirements
- None stated.
About
B Reactor is a decommissioned plutonium production reactor on the Hanford Site in Washington, now part of Manhattan Project National Historical Park. The Department of Energy runs the tours, and its 2026 season covers the free pre-WWII historic sites, which pass B Reactor from the bus or outside the fence. B Reactor's interior tours are suspended for construction; the DOE's tour site projects them resuming in late summer 2027, while a tourism notice says 2027 is off and 2028 undecided. The park's free Atomic Explorations ranger programs at its visitor center take no reservations.
Owner: U.S. Department of Energy. Run by: U.S. Department of Energy (tours); National Park Service (Manhattan Project National Historical Park).
Where official pages disagree
- open or closed: When B Reactor tours resume: the DOE's B Reactor tour site says they are projected to resume in late summer 2027; the tourism notice says suspended for the 2027 season, with 2028 not yet determined. Both agree tours are suspended now. An unconfirmed claim of suspension through May 2028 is not relied on. manhattanprojectbreactor.hanford.gov · visitthereach.us/b-reactor-tours/ · tours.hanford.gov/HistoricTours/
Getting there
Richland, WA, 99354
Tours begin and end at the visitor center at 2000 Logston Boulevard, Richland, Washington 99354. The reactor itself is on the Hanford Site, a secure facility.
The pin marks the site itself, not necessarily the entrance (46.63028, -119.64722). Show on our map · Google Maps · Apple Maps
Manhattan Project NHP visitor center: (509) 376-1647
Last checked 2026-10-26. Sources are listed below.
Sources
- nps.gov/mapr/planyourvisit/hanford-gu… · official page · read 2026-10-26For: name; owner
- visitthereach.us/b-reactor-tours/ · official tourism or agency page · read 2026-10-26For: who runs it; open or closed
- wikidata.org/wiki/Special:EntityData/Q2472… · Wikidata · read 2026-10-26For: location
- tours.hanford.gov/HistoricTours/ · official page · read 2026-10-26For: directions; phone and email; Pre-WWII historic sites tour (DOE bus tour, B Reactor from outside the fence): open or closed; Pre-WWII historic sites tour (DOE bus tour, B Reactor from outside the fence): what you see; Pre-WWII historic sites tour (DOE bus tour, B Reactor from outside the fence): kind of visit; Pre-WWII historic sites tour (DOE bus tour, B Reactor from outside the fence): days and hours; Pre-WWII historic sites tour (DOE bus tour, B Reactor from outside the fence): booking; Pre-WWII historic sites tour (DOE bus tour, B Reactor from outside the fence): cost; Pre-WWII historic sites tour (DOE bus tour, B Reactor from outside the fence): requirements; Atomic Explorations ranger program (park visitor center, free, no reservations): open or closed; Atomic Explorations ranger program (park visitor center, free, no reservations): what you see; Atomic Explorations ranger program (park visitor center, free, no reservations): kind of visit; Atomic Explorations ranger program (park visitor center, free, no reservations): days and hours; Atomic Explorations ranger program (park visitor center, free, no reservations): booking; Atomic Explorations ranger program (park visitor center, free, no reservations): cost; Atomic Explorations ranger program (park visitor center, free, no reservations): requirements
- manhattanprojectbreactor.hanford.gov · official page · read 2026-10-26For: open or closed
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