Laserfiche WebLink
EXHIBIT D <br />Mining Plan <br />Lafarge `vVest, Inc. proposes to mine the River Valley Resource site in Routt County, Colorado. <br />The City of Steamboat Springs lies a few miles north of the property. The site is to the north and <br />east of the Yampa River on the east side of State Highway 131 and west of Highway 40. <br />Sand ancg gravel will be the primary product produced from the River Valley Resource site. The <br />principal intended use for the sand and gravel is for construction aggregates. Permitted mining <br />operations are located northwest of the proposed site, to the west of State Highway 131. The <br />dominant non-mining land use surrounding the property is agriculture. <br />Borehole: drilling and testing has verified that the River Valley Resource site contains a <br />significant commercial deposit of sand and gravel. The depth of the topsoil and overburden <br />averages approximately 4.0 feet over the entire site. The volume of overburden removed is <br />expected to total approximately 587,253 cubic yards. The depth of the aggregate material <br />averages approximately 27 feet. <br />The permit boundary will encompass approximately 128.26 acres with approximately 91 acres <br />being mined. The remaining area will consist of setbacks, access road, and undisturbed wetland <br />areas. Fences located within the proposed permit boundary may be removed during the mining <br />process. <br />Mine Phasine <br />Lafarge anticipates mining and reclaiming the River Valley Resource site in approximately 13 to <br />15 years.. However, the rate of mining and overall life of the mine is dependent on several factors <br />including; product demand. <br />Since approximately 91 acres will eventually be mined on the site, mining in phases will limit <br />the area of disturbance at any one time (see the Pre-Mining/Mining Plan Map, Exhibit C). The <br />River V~dley Resource site will be mined in 5 phases. The following is the approximate acreage <br />and time for mining each phase: <br /> <br />Mining Phase Area <br />Acres Time for Mining <br />Years <br />1 24 3 <br />2 20 3 <br />3 11 2 <br />4 18 3 <br />5 10 2 <br />6 8 1 <br />TOTAL 91 13-15 <br />River Vnl(ey Resource <br />OMC (/2 Permit Amendment <br />Pnge 4 <br />