An unintentional roof fall mesuring 80' long, 20' wide, and 5.5' high was found in the intake entry 30' outby spad 50541. The area was developed Aug. 04 with 5' torque tension roof bolts in place. The fall 1100' outby the 003 mmu and did not impeade travel or affect ventilation. The fall perimeter was resupported and barricaded to prevent travel into the fall.