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GENERAL31414
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GENERAL31414
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Last modified
8/24/2016 7:54:34 PM
Creation date
11/23/2007 7:00:29 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981017
IBM Index Class Name
General Documents
Doc Date
1/11/2002
Doc Name
Coal Basin Annual Report
From
2002 Correspondence Folder
Permit Index Doc Type
Reclamation Project
Media Type
D
Archive
No
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linear feet of four strand barbed wire fence was constructed for a cost of $1,928.50. <br />The fence will remain in place until vegetation becomes well established in this area. <br />Spring Maintenance <br />Maintenance in 2001 primarily focused on accomplishing repairs and additional <br />drainage dip construction and maintenance on Roads B and D. Additional drainage <br />dips were constructed at locations selected and marked in the field. Other dips were <br />rebuilt or widened as need dictated. At the lower most portion of Road B, a drainage <br />trench was dug adjacent to the cut slope of the road. This was necessary in order to <br />drain a long, seasonal seep area which discharged directly onto the backfill in this area. <br />Other maintenance tasks completed included installing additional energy dissipation <br />structures in Sutey Ditch 8, which drains the eastern portion of the Sutey Refuse <br />Disposal Area, and road side ditch maintenance in the vicinity of the Sutey Refuse <br />Disposal Area. Miscellaneous junk and scrap was collected from the site and disposed <br />of, and some previously reclaimed areas were inter-seeded. <br />This Project was also utilized to maintain compliance with the two Stormwater permits <br />that the Division holds at Coal Basin. Erosion control work was accomplished on the <br />Bear Creek Project Area, and silt fence was either repaired or erected in other areas as <br />needed. <br />The Contractor expended about sixty two hours of manpower and equipment time on <br />the site,-for a total cost of $3,721. <br />Flume Area Project <br />The Dutch Creek Flume was demolished as part of on-going reclamation in 1999. The <br />slope located behind and on either side of the flume structure was over-steepened due <br />to headward erosional processes which were active during the life of the flume. The <br />purpose of the Fiume Area Project was to create a productive iandform which does not <br />pose a hazard to users of the area. <br />A coarse rock underdrain was constructed under the footprint of the fill area. Three feet <br />of locally derived coarse rock was placed under a geotextile fabric. The coarse rock <br />was also placed against the southeast portion of the existing cut slope, as it exhibited <br />seasonal springs and seeps. The underdrain allows near surface ground water to flow <br />under the fill materials directly to Coal Creek without saturating the fill. <br />Material was then cut from the existing slopes and compacted in horizontal lifts as the <br />fill was- constructed toward the cut and fill match line. The cut and fill slopes measured <br />about 2.5H : 1 V when completed. Following completion of cut and fill operations, topsoil <br />was added over all disturbed areas to an eight inch depth. The soil was covered by two <br />tons per acre of certified weed free straw mulch, and then the entire surface of the cut <br />and fill was severely scarified using a trackhoe. The trackhoe created hundreds of dips <br />in the soil surface, and worked the mulch into the soil and underlying cut and fill <br />material. Following completion of earth work activities, the area was fertilized and <br />5 <br />
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