Foreman was traveling airways & found roof fall on 11/13/08. Roof fall was in the No 16 entry outby survey spad 1948. The roof fall is approximately 30' long x 18' wide x 3'-4' thick. This area has been dangered off & additional roof support has been installed on the inby & outby end of the roof fall to make area safe. (Roof fall reported to MSHA by phone 11/14/08.)