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PERMFILE103848
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PERMFILE103848
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Entry Properties
Last modified
8/24/2016 9:57:16 PM
Creation date
11/24/2007 10:29:43 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981019A
IBM Index Class Name
Permit File
Doc Date
1/26/2005
Section_Exhibit Name
2.05 Operations and Reclamation Plans
Media Type
D
Archive
Yes
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Power Lines <br />Because Colowyo utilizes many electric-powered mining machines, a network of electric <br />power lines is located in the permit area to supply electricity to the equipment. The locations <br />of the Colowyo power lines are shown on the Existing Structures -South Map (Map 22). <br />Colowyo has constructed the power lines within the permit area for compliance with the <br />raptor-proof power pole requirements of REA Bulletin 61-10, Protection of Bald and Golden <br />Eagles for Power Lines. <br />Five major pieces ofequipment at Colowyo, the three draglines, and two shovels are powered <br />by electricity. Therefore, during the life of the mine it is necessary to periodically move the <br />existing power line loop to accommodate the advancement of the pit. The location of the <br />anticipated power line loop changes are also- shown on Map 22, Existing Structures -South. <br />In addition to power poles and lines, Colowyo will be using power cable to connect to the <br />equipment that requires electricity (ie. Shovels, draglines, highwall miner, etc.). This is a <br />rubber coated electrical cord that is used to run on top of the ground to convey electrical <br />power from the substation to the electrical operated equipment for mining. If the corridor for <br />the cable is covered with brush, making it inaccessible by a light vehicle, then the surface <br />brush will be removed as a minimum. If not then the power cable will be placed over the <br />surface without additional disturbance. In most cases topsoil will not be removed or salvaged <br />due to the minimal impact to the environment. However, if necessary, the topsoil will be <br />• salvaged in either a windrow, stockpile, or placed on a regraded area ready for topsoil <br />placement. The corridor of disturbance will generally be a dozer blade wide or <br />approximately 25 feet. This allows for the cable equipment to access the corridor for <br />placement and retrieval of the power cable. In addition this allows for small vehicle access <br />for any maintenance activity that may arise. <br />Haul and Access Roads <br />The haul roads and access road utilized at the Colowyo operation are shown on the Existing <br />Structures -North Map (Map 21) and the Existing Structures -South Map (Map 22). The <br />road gradients are <br /> <br />2.05-20 Revision Date: 7/06/04 <br />Revision No.: MR-64 <br />
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