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The north face of Minard Hall collapsed overnight during a construction project at North Dakota State University. Michael Vosburg / Forum Photo Editor

Geologists blame NDSU building collapse on weak clays

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Days before Minard Hall collapsed, a North Dakota State University geosciences professor looked at the excavation work to see if the hole revealed interesting geological formations.

Allan Ashworth said he and a colleague scratched their heads at the sight of Minard's exposed basement and a hole that at the time was 12 feet deep.

"I was very surprised to see them digging a deep hole so close to a building like Minard," he said.

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