A shot was put off at aprox 2:00PM Friday that conected 27 South with 27 East going West. This area has been a known problem and the shot was allowed to set over the weekend. Size of fall: 50'x70'x10' It did not affect ventilation of passage however it was above the 8' & 9' bolts. The day of the fall was not a scheduled work day. Pumping only.