The vertical silo collapsed over its central and northern parts, with the northern part effectively burying the installation
offices. Only 16 of the 44 cells were still for the most part intact after the accident, 9 on the south side and 7 on the
north. One characteristic of this disaster was the collapse of two sets of cells: the first on the northern end, which had
abutted the material handling tower; and then the central section of the silo