P.O. Box 1531, Richland, Washington 99352, USA

B Reactor - a National Historic Landmark

BRMA is an all-volunteer association of individuals and groups working
to preserve the historic B Reactor on the Hanford Nuclear Site
in southeastern Washington State as a public museum.

Goals Museum History Newsletter Events/Tours Photos Meetings Officers Join us

B Reactor 70th anniversary news and photos new.gif (2364 bytes)
"BRMA's role in preservation of B Reactor," B Reactor 70th anniversary address by Del Ballard
"Hanford and History," B Reactor 60th anniversary address by Richard Rhodes

"Preserve B Reactor" — slide show
"The Atomic Fortress That Time Forgot"

B Reactor, the world's first industrial-scale nuclear reactor, was built during World War II as part of the top-secret Manhattan Project to develop the atomic bomb.

One of three plutonium production reactors built in total secrecy at Hanford during World War II, B Reactor produced plutonium for the Trinity test at Alamagordo, New Mexico, on July 16, 1945, and for the atomic bomb exploded on Nagasaki on August 9, 1945.

new.gif (2364 bytes) Online virtual tour of B Reactor: www.rangerinyourpocket.org

BRMA goals

  • Establish a Manhattan Project National Historical Park that includes B Reactor.
  • Restore the reactor building and contents to reflect its appearance during operation.
  • Public access to B Reactor, including road access from Highway 240.
  • Add exhibits that reflect the history of the Hanford Nuclear Site.
  • Educate the public as to the historical and technological significance of B Reactor.
  • Promote other attractions in the area to increase visitors to B Reactor.

BRMA Vision Statement


BRMA meetings are held on the second Monday of each month, 7:00 pm, at the Richland Public Library, 955 Northgate Dr. at Swift Blvd. The public is welcome.

Officers and Chairpersons 2015

President: Maynard Plahuta
Vice President: Hank Kosmata
Secretary: Gene Weisskopf
Treasurer: Del Ballard
Communications Director: Gary White

Membership: Burt Pierard
History & Archives: Burt Pierard
Property & Facilities: Del Ballard
Government Relations: John Fox

Tour Coordinator: Bob Horgos

Newsletter Editor: Richard Romanelli
Associate Editor: Missy Keeney Baker

Webmaster: Jim Stoffels


Tom Bearden
Donald Sandberg
Frances Berting
Gerald Woodcock
Lyle Wilhelmi
Gene Weisskopf
Madeleine Brown
Del Ballard
Michele Gerber
Hank Kosmata
Maynard Plahuta


1990 - Sep. 1991
Oct. 1991 - 1992
1993 - mid-1994
mid-1994 - 1997
1998 - 1999
2000 - Mar. 2002
Apr.-Dec. 2002
2003 - 2004
2006 - 2008
2009 - 2015

Contact us: info@b-reactor.org

B60-mini.gif (2974 bytes) ACKNOWLEDGMENTS
60th Anniversary of B Reactor Celebrations

Click here for details.

Updated April 2015

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