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Steel Sets - - - Proposed Disturbed <br />Rock Brow <br />Area Boundary N <br />(New) <br />Rock Brow - -- <br />1 <br />I <br />J <br />Talus Fill -- - - <br />-- Steel Set at Portal <br />-- Portal w/ Gate <br />i <br />- -- - Portal Gate <br />Portal Gate - <br />- - -- Surface Drainage <br />Waddle - - <br />( -1 % away from Portal) <br />,\ <br />Mine Drainage <br />( -1 % from Portal my ards - No <br />mine water egress /to surface) <br />\ <br />1 <br />- -- -- Waddle <br />l <br />Plan View <br />End View (B -B') <br />ft " 1 10 <br />Scale: = <br />Scale: 1" =10 ft <br />Note: Length of Steel Set support is 30 ft; 8 Steel Sets <br />- - -- Rock Brow <br />on 4 ft Centers <br />Steel Sets are W10x22, nominal 10 ft x 10 ft in span and <br />height <br />Steel Sets - -- ; <br />%/ Protection Bench made of Talus Fill <br />Steel Sets are to be fully lagged with channel sections, <br />-- 2:1 Talus Fill Slope <br />/ Portal Set <br />/ <br />Channels are C6x14 <br />Steel Sets to be covered with 2 to 3 ft of talus fill <br />i <br />-- -- Portal Gate <br />- -- Portal Set <br />-- Portal Gate <br />Steel Sets -- <br />RIO GRANDE SILVER, INC. <br />Bulldog Mine 9700 Rehabilitation <br />Multi -View <br />Long Section (A -A') <br />Oblique View <br />SIZE Dwc. No. BD 10200 -01 REV <br />Scale: 1" = 10 ft <br />Scale: 1" = 10 ft <br />SCALE: Per View DATE : 04 / 28 / 1 <br />