AN UNINTENTIONAL ROOF FALL OCURRED AT THE MILLENNIUM PORTAL AT THE 5N HEADGATE ENTRY #1 AROUND 620 NORTH, CROSSCUT #16 LEFT. THE FALL WAS OF UNKNOWN LENGTH, APPROX. 18'WIDE AND OF UNKNOWN THICKNESS. THE FALL DID NOT AFFECT VENTILATION OR PASSAGE OF MEN. THE FALL WILL NOT BE CLEANED UP.