REP24144

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Opening ID 377
Type of Feature Adit
Excavated Dimension
4.10
X 6.50 Ft
Eroded Dimension
4.10
X 6.50 Ft
Present Dimension
4.10
X 6.50 Ft
Depth
Over
1000 feet
Shape of Opening
Arch
Surficial Material
Colluvium
Depth to Bedrock
12 feet
Drainage
No
Existing Access Deterrents
None
Preferred Closure Method
Adit
Door
Install an Adit Door closure according to the Specifications. Some minor
scaling and stabilization of the portal may be required to make a safe work
area. The door must be designed to clear the mine rails leading into the adit.
A 2'x 4" trimmed slot shall be left in the top center of the door. Minimum
inside dimension of the door shall be 4 feet in width. The grating alternate
shall be used to attach the channel -iron door frame.
Opening ID
Type of Feature
Excavated Dimension
Eroded Dimension
Present Dimension
Depth
Shape of Opening
Surficial Material
Depth to Bedrock
Drainage
Existing Access Deterrents
Preferred Closure Method
378
Shaft
6.00 X 3.00 Ft
N/A
6.00 X 3.00 Ft
45 ft to water
Rectangular
Mine dump
10 feet
Standing Water at 45'
None
Backfill
Backfill by placing on -site materials back into the opening. Install monument
to specifications.
Opening ID 379
Type of Feature Shaft
Excavated Dimension
Eroded Dimension
Present Dimension
Depth
Shape of Opening
Surficial Material
Depth to Bedrock
Drainage
Existing Access Deterrents
Preferred Closure Method
6.00 X 8.00 Ft
15.00 X 15.00 Ft
6.00 X 8.00 Ft
300 feet
Rectangular
Mine dump
10 feet
None
None
Panels
Install 1 B -1 (6' X 12 panel, and one (1) B -1 (6' X 12') panel with a
locking, grated access door, according to the Precast Concrete Closure
specifications.
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