The dramatic breach of a canal in the early hours of Monday, which sent two narrowboats tumbling into a hole and left others stranded, was caused by the collapse of an artificial embankment that had stood for more than 200 years.
As emergency services declared the major incident phase over more than 24 hours after the embankment failure, work was beginning to isolate the damaged section of the canal and refloat boats still stranded either side of the emptied section of waterway.
