By Mike Gorrell
The Salt Lake Tribune
Article Last Updated: 03/12/2008 06:45:54 AM MDT
Months before August's disaster, at least two engineers saw problems in Murray Energy Corp.'s plan for retreat mining in the Crandall Canyon mine.
Pete Del Duca, a federal Mine Safety and Health Administration (MSHA) engineer, determined in September 2006 that the proposal to remove most of two ground-stabilizing "barrier pillars" would not work. But his superior overruled him after listening to company complaints about the analysis.
Del Duca was right, however. In March 2007, the weight of the mountain overhead proved too much for what was left of a whittled back north barrier pillar and its walls blew in.
Fortunately, no one was there when it happened. But Murray Energy was forced to abandon that section. Its attention turned to doing the same work in the south barrier pillar.
This time, an engineer for the company's consultant, Agapito Associates Inc., looked at where the north barrier pillar failed and compared conditions there with the south barrier pillar. Leo Gilbride drew two circles on that mine map and wrote on the side "Dangerous?" and "Danger?"
He was right, too. Four months later, unfortunately, that was where a six-man crew was working when a catastrophic collapse occurred.
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http://www.sltrib.com/ci_8542218 There should be MURDER charges