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_GENERAL DOCUMENTS - C1981017 (210)
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_GENERAL DOCUMENTS - C1981017 (210)
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Last modified
11/2/2020 9:34:33 AM
Creation date
6/19/2012 2:57:02 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981017
IBM Index Class Name
GENERAL DOCUMENTS
Doc Name
Bid Documents (IMP) 2007 Correspondence
Permit Index Doc Type
General Correspondence
Media Type
D
Archive
No
Tags
DRMS Re-OCR
Description:
Signifies Re-OCR Process Performed
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new channel to deliver the Rock Tunnel discharge directly to the North Fork of Dutch <br /> Creek. <br /> The entire area was covered with approximately eight inches of dirt obtained from <br /> narrowing Road B. The entire area was fertilized, seeded and mulched following <br /> completion of dirt work. <br /> The Rock Tunnel and vicinity is located on private property. <br /> Mines 1 and 2 Reclamation. Reclamation of the Mines 1 and 2 areas consisted of <br /> reclaiming the mine entry areas as well as reclamation of three access roads, two mine <br /> fan entry areas and associated access roads, the Mine 2 coal loadout area, located <br /> approximately 500 feet vertically below the mine entry, and the conveyor corridor that <br /> connected the mine and loadout. Approximately one half mile was also reclaimed. <br /> Previous to the DRMS reclamation work, a structural demolition company employed by <br /> Mid Continent Resources sealed the mine entries, and removed all of the metallic debris <br /> from the area. All non-metallic structures, foundations and channels were left in-place <br /> for DRMS contractors to demolish and remove. <br /> Reclamation work consisted of structural demolition, backfilling and grading, drainage <br /> manipulation and revegetation work. Numerous remnant buildings, foundations and <br /> beltline foundations were left at the site. All concrete materials were demolished to <br /> below ground surface level. The rubble generated at the mine entry area was <br /> preferentially placed within the open portions of the mine entries, outby the seals. Excess <br /> concrete was placed against the highwall at Mine 1, and against the cut slope at the Mine <br /> 2 loadout. <br /> The highwall and the loadout cut slope were backfilled with earthen materials generated <br /> on site. Material from the Road D fill slope was excavated to generate fill material for <br /> the Mine 1 highwall backfill. Material generated from the outside fill slope of an access <br /> road between Mines 1 and 2 was used to backfill the Mine 2 entry area. The slopes <br /> located north of the Mine 2 loadout bench were excavated to generate fill material for <br /> that area. <br /> Reclamation of the mine fan entries was similar to that employed at the mine entries; <br /> concrete debris was placed within the fan entries and along any existing highwall. <br /> Earthen material was excavated from the adjacent fill slope below the fan bench, and was <br /> used as backfill for the highwall. The access roads were reclaimed by removing culverts, <br /> and grading the road so that upon completion the road surface was angled toward the fill <br /> slope. Numerous drainage ditches were constructed in order to convey water from the <br /> inside of the road surface to the outside of the road to promote natural drainage pattern <br /> establishment. The roads were heavily scarified, and seed, fertilizer and mulch were <br /> applied. <br /> At each mine, the entire area was graded to establish appropriate surface water runoff <br /> characteristics. No topsoil was available to support revegetation efforts, so the in-place <br /> 8 <br />
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