The Canal that slipped into the river

This video is about the Manchester Bolton Bury canal and how in 1936 there was a landslide, canal breach and a whole section of the canal slipped down a hillside into the River Irwell. This landslide had happened before and the retaining wall had to be sured up. However 52 years later on the 6th July 1936 the canal breach happened again and sealed the fate of the Manchester Bury and Bolton canal. The landslip was possibly due to subsidence caused by the nearby Ladyshore colliery coal mine.