My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
_GENERAL DOCUMENTS - C1981017 (247)
DRMS
>
Day Forward
>
General Documents
>
Coal
>
C1981017
>
_GENERAL DOCUMENTS - C1981017 (247)
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
11/2/2020 10:40:58 AM
Creation date
6/20/2012 8:21:17 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981017
IBM Index Class Name
GENERAL DOCUMENTS
Doc Name
Bid Documents (IMP) 1996 Correspondence
Permit Index Doc Type
General Correspondence
Media Type
D
Archive
No
Tags
DRMS Re-OCR
Description:
Signifies Re-OCR Process Performed
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
187
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
land form. <br /> The bid package included revegetation of the Mines 1 and 2 bench <br /> outslopes. However, this requirement was deleted from the bid <br /> after the results of the steep slope revegetation experiments <br /> performed in 1995 were observed. These observations indicated that <br /> new ideas should be experimented with in order to increase the <br /> potential for success. Therefore, Field Directive No. 3 eliminated <br /> the steep slope revegetation requirement on the mine bench <br /> outslopes, and directed that additional revegetation experiments <br /> would be conducted on three acres of steep slope area under the <br /> direction of the Project Manger. <br /> Roads E, F, G <br /> The goal of the road reclamation project was to attempt to restore <br /> the basic hydrologic functions of the roads north of the Rock <br /> Tunnel (including the fan access roads at Mines 3 and 5) by <br /> accomplishing four tasks. These were to remove all constructed <br /> drainage structures, such as culverts and road drainage ditches. <br /> Changing the cross sectional grade of the road from a slope toward <br /> the inside of the road to a slope to the outside in order to <br /> encourage sheet flow of runoff was the second task, followed by <br /> construction of rolled dips and low water crossings in an attempt <br /> to recreate pre-mining surface flow conditions. Ripping of the <br /> roadways to a minimum depth of eighteen inches for the purpose of <br /> loosening the road surface and to encourage infiltration of <br /> precipitation, and revegetation of the road remnants were the final <br /> tasks. Approximately nine miles of road was treated as described, <br /> excepting an approximately 2,000 feet long segment of the fan <br /> access road south of Mine 3 , which was backfilled to approximate <br /> original topography. <br /> The Road project, accounting for 51 acres of reclamation work, was <br /> performed by Dirt-N-Iron of Loma. The project was accomplished for <br /> $89,995.50. The project began on August 7, and was completed by <br /> October 4, 1996. <br /> Field Changes <br /> One location on Road G was originally specified as a rolled dip <br /> location. However, further study of the location indicated that it <br /> was better suited to a low water crossing. Field Directive No. 1 <br /> directed that the low water crossing be constructed. <br /> The bid was written in a manner which provided the Project Manger <br /> flexibility in the field to accomplish changes to the reclamation <br /> plan as needed on a site by site basis. This was done by bidding <br /> out 72 hours of equipment rental time and 240 hours of man power <br /> time. Many small, site specific changes were made as the <br /> contractor worked down the roads. Field Directive No. 2 discusses <br /> these site specific operations. These tasks included deepening the <br /> rolled dips beyond bid specifications, re-rip and cross rip <br /> 15 <br />
The URL can be used to link to this page
Your browser does not support the video tag.