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Access Road <br />o Erosion and Sedimentation control BMPs during <br />construction <br />o Wetland impacts <br />o Culvert Installation <br />o Clearing the cut slope <br />o Cribbing stability <br />The suggestions (incorporated by reference) provided by DRMS to Wildcat have been included <br />in the following construction work plan including conducting a road and cut slope geotechnical <br />stability assessment. The stability assessments and the road engineering and construction plan <br />prepared by CLC Associates and R Squared have been incorporated in the mine permit <br />application, <br />Purpose <br />The proposed temporary road is to provide access to the permitted May Day Idaho Mine <br />Complex located northwest of Durango Colorado and to comply with applicable Colorado <br />Division of Reclamation Mining and Safety rules, regulations, Board orders and County criteria. <br />The design components are summarized by survey stations as outlined below: <br />Existing Conditions Sta. 16+00 to 21+00 (Attachment A- Sheet C4.11-CLC Associates) <br />Roadway slopes average less than 15 percent. The roadway widths are over 20 feet wide <br />between Sta. 16+00 and 18+00, between 15 and 20 feet wide between Sta. 18+00 and 19+00, <br />and less than 15 feet wide thereafter. Cut slopes vary from slightly flatter than 1:1 between <br />16+00 and approximately 18+80 to near vertical i.e., between 0.4:1 and 0.14:1 or between 65 <br />and 82 degrees from the horizontal). <br />Between Stations 16+00 and 19+20, terrace deposits consisting of rounded cobbles 1 to <br />12 inches in diameter in a silty sand matrix. From Sta. 19+20 to 21+00 the competent Morrison <br />Formation bedrock is overlain by colluviums and is exposed in the cutslopes. The colluvium <br />consists of angular to sub rounded cobbles from 2 to 6 inches in diameter in a silty sand matrix; <br />occasional boulders up to 18 inches are also present in both the terrace deposits and colluvium. <br />The Morrison formation consists of relatively thick beds red-brown mudstone intertongued with <br />greenish-grey thin beds of green gray mudstone. The red-brown mudstone is hard, strong, <br />slightly fractured with bedding varying from less than 6 inches to over 2 feet; the greenish gray <br />mudstone is friable, thin bedded with the vary from less than 2 inches to over 6 inches. The <br />strike of the bedding is varies from North 80 to 88 degrees west and dips between 28 and 35 <br />degrees. <br />[Publish Date] <br />