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Manhattan Construction Company Charter - December 17, 1907 Manhattan Building - Muskogee, Oklahoma. The Manhattan Construction Company [1] is an American-owned construction company founded by Laurence H. Rooney in Chandler in Oklahoma Territory in 1896. Today, the firm operates under its parent company, Manhattan Construction Group with ...
Manhattan District The Trinity test of the Manhattan Project on 16 July 1945 was the first detonation of a nuclear weapon. Active 1942–1946 Disbanded 15 August 1947 Country United States United Kingdom Canada Branch U.S. Army Corps of Engineers Garrison/HQ Oak Ridge, Tennessee, U.S. Anniversaries 13 August 1942 Engagements Allied invasion of Italy Allied invasion of France Allied invasion of ...
The five drum warehouses were moved by truck to make way for K-27. The construction work was expedited by making it "virtually a Chinese copy" of a section of K-25. [75] By 31 December 1946, when the Manhattan Project ended, 110,048,961 man-hours of construction work had been performed at the K-25 site. [50]
The Manhattan Project was a research and development project that produced the first atomic bombs during World War II. It was led by the United States with the support of the United Kingdom and Canada. From 1942 to 1946, the project was under the direction of Major General Leslie Groves of the US Army Corps of Engineers. The Army component of ...
Workers leaving the Manhattan Project's Y-12 plant on 11 August 1945. The Clinton Engineer Works (CEW) was the production installation of the Manhattan Project that during World War II produced the enriched uranium used in the 1945 bombing of Hiroshima, as well as the first examples of reactor-produced plutonium.
The project was known as K-25; "K" stood for Kellex while "25" was a common designation for uranium-235 during the Manhattan project. The K-25 production plant at the Clinton Engineer Works was built by the J. A. Jones Construction Company. [4]
Y-12 is the World War II code name for the electromagnetic isotope separation plant producing enriched uranium at the Clinton Engineer Works in Oak Ridge, Tennessee, as part of the Manhattan Project. Construction began in February 1943 under the management of Stone & Webster.
Groves selected the H. K. Ferguson Company of Cleveland, Ohio, as the prime construction contractor on its record of finishing jobs on time, [50] notably the Gulf Ordnance Plant in Mississippi, [51] on a cost plus fixed fee contract. The H. A. Jones Construction Company would build the steam plant, with H. K. Ferguson as engineer-architect. [49]