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SAFEGUARDING UNDERGROUND OPENINGS <br /> Task description: Seal Mine Openings <br /> Site: King Coal Mine Permit Action: MT9 Permit/Job#: C1981035 <br /> PROJECT IDENTIFICATION <br /> Task#: 100 State: Colorado Abbreviation: None <br /> Date: 4/24/2025 County: La Plata Filename: C035-100 <br /> User: CCW <br /> Agency or organization name: DRMS <br /> UNIT COSTS <br /> Opening <br /> Description Dimensions Closure Method Quantity Unit Unit <br /> Cost Total Cost <br /> Portal 1 seal 200 Adit closure-bulkhead 200.00 SF $287.50 $57,500.00 <br /> seal, >=36 sq.ft.(per sq. <br /> ft. <br /> Portal 1 drain pipe 165 PVC drainpipe, 6 in. 165.00 LF $33.64 $5,550.60 <br /> diameter(per In.ft.incl. <br /> mat.&labor <br /> Portal 1 backfill 185 Adit closure-backfilling 185.00 CY $43.75 $8,093.75 <br /> (per cu. d. <br /> Portal 2 seal 200 Adit closure-bulkhead 200.00 SF $287.50 $57,500.00 <br /> seal, >=36 sq.ft.(per sq. <br /> ft. <br /> Portal 2 drain pipe 165 PVC drainpipe, 6 in. 165.00 LF $33.64 $5,550.60 <br /> diameter(per In.ft.incl. <br /> mat.&labor <br /> Portal 2 backfill 185 Adit closure-backfilling 185.00 CY $43.75 $8,093.75 <br /> (per cu. d. <br /> Portal 3 seal 200 Adit closure-bulkhead 200.00 SF $287.50 $57,500.00 <br /> seal, >=36 sq.ft.(per sq. <br /> ft. <br /> Portal 3 drain pipe 165 PVC drainpipe, 6 in. 165.00 LF $33.64 $5,550.60 <br /> diameter(per In.ft.incl. <br /> mat.&labor <br /> Portal 3 backfill 185 Adit closure-backfilling 185.00 CY $43.75 $8,093.75 <br /> (per cu. d. <br /> Portal 4 seal 200 Adit closure-bulkhead 200.00 SF $287.50 $57,500.00 <br /> seal, >=36 sq.ft.(per sq. <br /> ft. <br /> Portal 4 drain pipe 165 PVC drainpipe, 6 in. 165.00 LF $33.64 $5,550.60 <br /> diameter(per In.ft.incl. <br /> mat.&labor <br /> Portal 4 backfill 185 Adit closure-backfilling 185.00 CY $43.75 $8,093.75 <br /> (per cu. d. <br /> Job Hours: 32.00 Total Cost: $284,577.40 <br />