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Post-Mining Drainage Channel Construction (Ditches) <br /> Task description: TRI58 Post Mining Channels(Mined Rip Rap/No Geotextile) <br /> Permit Action: TR158 New Post <br /> Site: Colowyo Coal Mine Mining Channels Permit/Job#: C1981019 <br /> PROJECT IDENTIFICATION <br /> Task#: 000 State: Colorado Abbreviation: None <br /> Date: 1/26/2023 County: Moffat Filename: C019-000 <br /> User: ZTT <br /> Agency or organization name: DRMS <br /> Channel Width Side Width Excavated Excavated <br /> Length Depth (bottom) Slopes (top) Vol./LF Vol. <br /> (ft) (ft) (ft) (XH:1V) (ft) (CY) (total) <br /> (CY) <br /> EP3Inlet 162 4.00 12.00 3.00 36.00 3.5556 576 <br /> Ditch <br /> EP3 <br /> Outlet 207 4.00 12.00 3.00 36.00 3.5556 736 <br /> Ditch <br /> Section 15 3,018 4.00 12.00 3.00 36.00 3.5556 10,731 <br /> Ditch <br /> Totals: 3,387 12,043 <br /> Riprap Perimeter, Area for Riprap Vol. <br /> Riprap P Geotextile (CY) <br /> Thickness (ft) (excl. <br /> (2xD50) anchor <br /> (ft) trenches) <br /> (sfl <br /> 0.00 37.30 6,042 0 <br /> 0.00 37.30 7,721 0 <br /> 0.00 37.30 112,566 0 <br /> Totals: 126,329 0 <br /> Materials Needed: <br /> Geotextile(SY incl. 15%wastage): 16,142 <br /> Riprap(CY): 0 <br /> Excavation(CY): 12,043 <br /> Costs: <br /> Material Costs: Geotextile(SY): $4.26 Riprap(CY): $37.00 Excavation(CY): $0.00 <br /> Labor Cost: $0.30 $14.05 $2.73 <br /> Equipment Cost: $0.00 $13.95 $2.04 <br /> Means Reference 3132 1916 1510 3137 1310 0100 3123 1642 0310 <br /> Totals: <br /> Geotextile(SY): $73,607.74 <br /> Riprap(CY): $0.00 <br /> Excavation(CY): $57,443.52 <br /> Hours: <br /> Geotextile(SY): 184.48 <br />