THE NORTH SPUR: WARNINGS IGNORED

Guest Post by David Vardy
Many warnings about the North Spur have been ignored.

Dr. Lennart Elfgren and Dr. Stig Bernander, both full professors at the Lulea University of Technology in Sweden, wrote the Minister of Natural Resources on August 1, 2019.  In their technical report entitled A Downward Progressive Failure of the North Spur at Muskrat Falls - A Possibility that ought to be investigated and mitigated, dated July 25, 2019, submitted to the Minister, they said that “The most critical inclined progressive downward failure surfaces of the North Spur at Muskrat Falls have not been properly investigated. Relevant stress/strain properties of the metastable soil layers have not been made available, and no independent external experts seem to have reviewed this aspect of the stabilization work.”

They said that old methodology was used to assess the safety of the North Spur, the same model which had been used unsuccessfully at other failure sites, such as Mount Polley, a copper/gold tailings pond owned by Imperial Metals and located in central British Columbia. They repeated their call for an independent panel of experts to undertake the research and to assess the need for further remedial work.