Laserfiche WebLink
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 />toast Mine <br />C-1994-082 <br />Technical Revision 35 <br />COLORADO <br />DIVISION OF <br />RECLAMATION <br />MINING <br />- &- <br />SAFETY <br />Bill Ritter, Jr. <br />Governor <br />Harris D. Sherman <br />Executive Director <br />31 August 2007 Ronald W. Cottony <br />Division Director <br />.IRS Natural Resource Trustee <br />Construct Post-Minine Drainage Channel YPM-21A $23,834.22 <br />Channels YPM-21A and YPM-21B will be constructed using turf-reinforced mat. YPM- <br />21A is a V-ditch with 4:1 side slopes and a total depth of 1.4 feet (including freeboazd). <br />YPM-21 B is a trapezoidal channel with a 3 foot bottom, 3:1 side slopes and a total depth <br />of 0.9 feet. The total length of YPM-21A is 760 feet and the total length of YPM-21 B is <br />2,120 feet. The cost for three-dimentional geomatrix, installed, is $8.15/squaze yard <br />(2007 RS Means Site Work and Landscape Cost Data; Section 31 25 13 10 0064). <br />Cross-Sectional Area YPM-21 A = (4H/1 V) x (1.4V Feet) x (2 Sides) = 11.2 Ft <br />Cross-Sectional Area YPM-21 B = [(0.9 v Feet) x (3H:1 V) x (2 Sides)] + (3 foot <br />bottom) = 8.4 Ft <br />Total Area YPM-21 A = (I 1.2 Ft) x (760 Ft) = 8,512.0 Ftz <br />Total Area YPM-21A = (8.4 Ft) x (2,120 Ft) = 17,808.0 Fiz <br />Total Area = (8,512.0 Ft2) + (17,808.0 Ft2) = 26,320.0 Ft2 <br />Cost = (26,320.0 Ft~) x (1 SY/9 Ft2) x ($8.15/SY) _ $23,834.22 <br />Office of Office of <br />Mined Land Reclamation Denver Grand Junction Durango Active and Inactive Mines <br />