On De
cember 10, 2012 the Department of Energy granted phase 1 of the LBNE project CD1 (Critical Decision 1) approval. This marks a major step toward the ultimate construction of the proposed neutrino experiment which will direct a beam of muon neutrinos about 1300 kilometers through the Earth to a 10 kiloton liquid argon detector comprised of time projection chambers in the Black Hills of South Dakota.
The significance of the CD1 approval is outlined in the following (taken from DOE document O 413.3A):
“CD-1, Approve Alternative Selection and Cost Range
CD-1 approval marks the completion of the project Definition Phase,during which time the conceptual design is developed. This is an iterative process to define, analyze, and refine project concepts and alternatives. This process uses a systems methodology that integrates requirements analysis, risk identification and analysis, acquisition strategies, and concept exploration to evolve a cost-effective, preferred solution to meet a mission need. Approval of CD-1 provides the authorization to begin the project Execution Phase and allows Project Engineering and Design funds to be used. For design-build projects, Project Engineering and Design funds may be used to develop a Statement of Work/Request for Proposal. Additionally, long-lead procurements may be approved during this phase, provided National Environmental Policy Act documentation is prepared, where applicable.”
