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STATE OF COLORADO <br />DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />McClave Canyon Mine <br />C-80-004 <br />COLORADO <br />D I V I S I ON O F <br />RECLAMATION <br />MINING <br />SAFETY <br />Bill Ritter, Jr. <br />Governor <br />Harris D. Sherman <br />Executive Director <br />Permit Renewal 06 Ronald W. Cattany <br />JRS Division Director <br />28 December 2005 Natural Resource Trustee <br />TASK 028 - Stream Channel Erosion Protection $ 47,221.12 <br />Riprap protection for channels R-2, R-5, R-6 and R-8 requires 650 cu. yd. of <br />riprap. Machine Placed Riprap for Slope Protection (from RS Means Building <br />Construction Cost Data. 2009 Edition; Section 31 37 13.10 0200) has a cost of <br />$66.00/cubic yard. <br />(650 cu. yd.) x ($66.00/cu. yd.) = $42,900.00 <br />Erosion blanket protection for channels R-1, R-3, R-4, R-7 and R-12 requires <br />1912 sq. yd. of blanket. The cost of the blanket, including installation, is <br />$2.26/sq. yd. (from RS Means Building Construction Cost Data 2009 Edition; <br />Section 31 32 19.16 1500). <br />(1,912 sq. yd.) x ($2.26/sq.yd.) = $4,321.12 <br />Total erosion control = ($42,900.00) + ($4,321.12) = $38,645.12 <br />Office of Office of <br />Mined Land Reclamation Denver - Grand Junction - Durango Active and Inactive Mines