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ROCKFILL EMBANKMENT SPECIFICATIONS, <br />5th STREET ROAD, <br />NEW HORIZON MINE, NUCLA, MONTROSE COUNTY, <br />COLORADO <br />i. INTRODUCTION <br />This report summazizes recommendations for materials and construc- <br />tion methods for a proposed rockfill embankment designed to support <br />a section of 5th Street, a Montrose County Road in the Town of Nucla, <br />Colorado. Western Fuels-Colorado (New Horizon Mine) has prepared <br />preliminary designs for the proposed section of road and has requested <br />that we review these designs, modify them as necessary, and recom- <br />mend appropriate specifications for rockfill materials and construction <br />methods for the rockfill structure using waste rock and heavy equip- <br />. ment at the mine, when possible. <br />1.1 OBIECTIV6S AND SCOPE OF STUDIES <br />The objectives of the geotechnical studies summarized in this report <br />were to: <br />1. Review Montrose County Specifications applicable to the proposed <br />road construction. <br />2. Review foundation conditions, proposed embankment geometry <br />and proposed materials and construction method submitted to us by <br />Western Fuels. <br />3. Recommend geotechnical specifications pertaining to construction <br />of the proposed rockfill embankment including: foundation <br />acceptance criteria, rockfill materials, lift thicknesses and <br />compaction procedures. <br />• 1 <br /> <br />