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Opening ID 363 <br />Type of Feature Adit <br />Excavated Dimension <br />5.50 X 6.00 Ft <br />Eroded Dimension <br />5.50 X 6.00 Ft <br />Present Dimension <br />3.00 X 4.00 Ft <br />Depth <br />650 feet <br />Shape of Opening <br />Arch <br />Surficial Material <br />Soil <br />Depth to Bedrock <br />8 feet <br />Drainage <br />None <br />Existing Access Deterrents <br />None <br />Preferred Closure Method <br />Culvert & Grate <br />Install a minimum of 15 linear feet of 36 -inch diameter culvert according to <br />Corrugated Steel Adit Closure specifications. The culvert shall have a locking <br />grated access door. <br />Opening ID 364 <br />Type of Feature Shaft <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 />6.00 X 10.00 Ft <br />20.00 X 20.00 Ft <br />6.00 X 10.00 Ft <br />48 feet <br />Rectangular <br />Mine dump /bedrock <br />8 feet <br />None <br />None <br />Backfill <br />Backfill by placing on -site materials back into the opening. Install monument <br />to specifications Riprap is not required.Opening ID <br />365 <br />Type of Feature Shaft <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 />4.00 X 7.00 Ft <br />4.00 X 7.00 Ft <br />3.50 X 6.50 Ft <br />50 feet <br />Rectangular <br />Mine dump <br />8 feet <br />None <br />None <br />Backfill <br />Backfill by placing on -site materials back into the opening <br />to specifications. No riprap is required. <br />Install monument <br />7 <br />