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Opening ID <br />Type of Feature <br />Excavated Dimension <br />Eroded Dimension <br />Present Dimension <br />Depth <br />Shape of Opening <br />Surficial Material <br />Depth to Bedrock <br />Drainage <br />Existing Access Deterrents <br />Preferred Closure Method <br />352 <br />Shaft <br />3.50 X 7.00 Ft <br />3.50 X 7.00 Ft <br />3.50 X 7.00 Ft <br />over 150 feet <br />Rectangular <br />Mine waste <br />Over 20 feet <br />None <br />None <br />Puf <br />Install a polyurethane (PUF) closure with a ventilation and drain pipe. Place <br />the bottom form at the 23.00 foot level of the opening according to <br />specifications. No accessway is required. The required thickness of PUF is <br />11.0 vertical feet. The estimated volume of PUF is 10.00 cubic yards. Place <br />approximately 10.9 cubic yards of common fill over the polyurethane foam <br />closure to specifications. <br />Opening ID <br />Type of Feature <br />Excavated Dimension <br />Eroded Dimension <br />Present Dimension <br />Depth <br />Shape of Opening <br />Surficial Material <br />Depth to Bedrock <br />Drainage <br />Existing Access Deterrents <br />Preferred Closure Method <br />353 <br />Shaft <br />5.00 X 10.00 Ft <br />20.00 X 20.00 Ft <br />5.00 X 10.00 Ft <br />150 feet, approximately <br />Rectangular <br />Wxed bedrock <br />6 feet <br />N/a <br />5- strand barbed wire fence <br />Panels <br />Install two (2) B -1 (6' X 12 panels, and one (1) B -1 (6' X 12') panel with a <br />locking, grated access door, according to the Precast Concrete Closure <br />specifications. <br />H <br />