This event occurred near Crookston, MN. MNDOT were able to divert traffic before the event based on geotechnical judgement and data from two wireless SAAs installed several months before. The SAAs experienced 3 m (10’) of lateral deformation and are still operating.      ...more

Graphs show SAA data associated with ~1m/day of deformation.

Deformation rate increased significantly ~30 days before collapse.

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