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Page 8 of 33 <br /> Post-Mining Drainage Channel Construction (Ditches) <br /> Task description: Reconstruct Drainage Channels <br /> Site: Yoast Mine Permit Action: RN6 Permit/Job#: C1994082 <br /> PROJECT IDENTIFICATION <br /> Task 9: 035 State: Colorado Abbreviation: None <br /> Date: 4/3/2025 County: Routt Filename: RN6 <br /> User: RAR <br /> Agency or organization name: DRMS <br /> Channel Width Side Width Excavat Excavat <br /> Length Depth (bottom) Slopes (top) ed ed Vol. <br /> (ft) (ft) (ft) (ft) Vol./LF (total) <br /> XH:1 V CY CY <br /> YPM-4 150 0.50 1.00 3.00 4.00 0.0463 7 <br /> TPM-5- 0 0.00 0.00 0.00 0.00 0.0000 0 <br /> 1 <br /> YPM 6- 1,440 0.80 5.00 3.00 9.80 0.2193 316 <br /> 2 <br /> YPM 6- 750 0.90 5.00 3.00 10.40 0.2567 193 <br /> 3 <br /> YPM 7 1,540 0.80 2.00 3.00 6.80 0.1304 201 <br /> YPM 13 1,130 1.30 2.00 3.00 9.80 0.2841 321 <br /> YPM 20 0 0.00 0.00 0.00 0.00 0.0000 0 <br /> Totals: 5,010 1,037 <br /> Riprap Perimete Area for Riprap Vol. <br /> Riprap r, P Geotexti (CY) <br /> Thickne (ft) le (excl. <br /> ss <br /> (2xD50) anchor <br /> (ft) trenches) <br /> s <br /> 0.00 4.16 624 0 <br /> 0.00 0.00 0 0 <br /> 0.00 10.06 14,486 0 <br /> 0.00 10.69 8,019 0 <br /> 0.00 7.06 10,872 0 <br /> 0.00 10.22 11,551 0 <br /> 0.00 0.00 0 0 <br /> Totals: 45,552 0 <br /> CIRCES Cost Estimating Software <br />