2011-11-17_PERMIT FILE - C1982056A

• Permit No: C1982056A
• IBM Index Class Name: Permit File
• Doc Date: 11/17/2011
• Doc Name: Design Information for 15LT Ventilation Shaft
• Section_Exhibit Name: Exhibit 49Y 15LT Ventilation Shaft Design Drawings
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
1
Twentvmile Coal Company
Proposed
15 .Left Submains Bleeder Sh
Channel Design Check
10 Year, 24 Hour
JK & TL
Peabody Energy - Twentymile Mine
29515 Routt County Road #27
Oak Creek, CO 80467
Filename: 15 Left Submains Bleeder - Below Pad.sc4 Printed 07 -22 -2011