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<br />Colorado Division of Minerals and Geology <br />ESTIMATING FORM - SEALING UNDERGROUND OPENINGS <br />Task #: 2 Prep. by: NHE Task Filename M306-2 <br />Date:28-Sep-99 Permit #: M-77-306 Mine: Jd-9 Mine <br />Permit Action: General 112 bond review <br />Task Description: Seal and safeguard adit and vent holes <br />SOURCES FOR QUANTITY TAKE-OFFS 8 UNIT COSTS <br />Closure costs from Inactive Mine Program, contractor bids received <br />__________________________________________________________________ <br />Assume three vent holes at 7'diameter each <br />Adit dimensions are 9'H ' 11'W, from mine plan <br />COST BREAKDOUN <br />Item Description ~ <br />___________________________I Unit <br />------... Quantity <br />..--...----- E/Unit ~ <br />---------I_ Subtotal <br />___________ <br />Portal backfill 25' ~ cu.yd. 91.67 43.50 ~ 4320.85 <br />Drag portions of shop floor Hours 6.00 4728.51 ~ 8771.06 <br />to vent holes for closure <br />with CAT DSN <br />Steel 1-Beam for pannels ~ ln.ft. 36.00 450.00 ~ 47,800.00 <br />1 beam/vent, 12'L each <br />3 vent holes <br />TOTAL COST 42,891.91 <br />