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0 0 <br />Opening ID 373 <br />Nine Name "Colorado King" <br />Type of Feature Shaft <br />Excavated Dimension <br />3.00 X 6.00 Ft <br />Eroded Dimension <br />12.00 X 12.00 Ft <br />Present Dimension <br />3.00 X 6.00 Ft <br />Depth <br />350 -400 <br />Shape of Opening <br />Rectangular <br />Surficial Material <br />Mine dump <br />Depth to Bedrock <br />8 feet <br />Drainage <br />N/a <br />Existing Access Deterrents <br />None <br />Preferred Closure Method <br />Puf <br />Install a polyurethane (PUF) closure with a ventilation and drain pipe. Place <br />the bottom form at the 11.00 foot level of the opening according to <br />specifications. No accessway is required. The required thickness of PUF is <br />6.0 vertical feet. The estimated volume of PUF is 5.00 cubic yards. Place <br />approximately 7.3 cubic yards of common fill over the polyurethane foam closure <br />to specifications. <br />Opening ID 374 <br />Type of Feature Stope <br />Excavated Dimension <br />8.00 X 18.00 Ft <br />Eroded Dimension <br />25.00 X 25.00 Ft <br />Present Dimension <br />8.00 X 18.00 Ft <br />Depth <br />Unknown <br />Shape of Opening <br />N/A <br />Surficial Material <br />N/A <br />Depth to Bedrock <br />7 feet <br />Drainage <br />N/A <br />Existing Access Deterrents <br />None <br />Preferred Closure Method <br />Backfill <br />Backfill by filling the opening with available on -site common fill. Do not use <br />fill from any areas other than those specifically designated by the Project <br />Manager. No riprap is required. Install monument to specifications. <br />13 <br />