2014-11-14_REVISION - M1974086 (11)

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6350 6250 � 6250 III 11 III , -- 3H:1V backfilled sio a See Detail s3s0 6150 j'' I _ i I I 0'between the water tunnel and mining 61so 6050 ---',. Anticipated Reservoir {11��`�� P Wai ter tunnel 0 0 0 0 0 0 0 0 0 0 0 .. 6050 5950 m 5950 1 0 00 00 s o I , � II rII •- � •- � � .- � � �+ c+ N r ,3 N n w w n m m � .. m a a a < � v v a a a m in m v"'i � m �n m I I - II � > o C, fi ji 6200 See Detail B 6260 saoo saoo r s150 See Detail B - 6150 I , , P 6300 A- - u Detail A i 6300 1. fios0 Anticipated Reservoir W� �� 3H:1V backlilled slope 8 8 5950 8200 .g � 5950 --- "l 6200 61 -�� 8100 fi000 6000 o m a Y o r w 6450 6450 6350 r. 1� III 35 6350 6250 ._ See Detail A li See Detail A 6250 6260 62W 61M r \ See Deta1I B �� 6150 Se Detail B VAC 6150 I/ 6uo so5o 1 Anticipated Reservoir Anticipated Reservoir ✓ 6050 5sso ---__�.- e✓ �� ) f A % �� 6050 m � m 5960 I ' mm _ o 0 0 0 0 0 o m o 0 05 o # i 8 + o0 0 0 N 8 # Y Y 4 Y $ R Y S S m m m m m o m e m m r _ 0, 7-00 — t400 109 r �� l Conceptual view of western slope variable Asphalt Paving Company benches from along the A-A' profile �C Ralston Quarry CI,<,,, Vegetation "island". See Detail C for example design. Map C-4: Cross Sections -ALIl -. -, Permit Number: me Center Location. Town- Jill Y I M' Latitude: Longitude: igh e t on: Townshi Venable bench heights.40-100 -. , ,.:..:. P Range Nearest � S Watershed: £ 0' 100, 200' 300, Map Scale: Foot • { Units: ❑ ❑Meter Legend Permit Boundar y Baseline Topography - - - - - - Current Conditions Detail A - Western Slope Information p p p Detail B - Eastern Slope Information Detail C - Vegetation Island Example Growth medium is a misture of select fill This figure shows a possible configuration of the slopes and U to the tc Mining Extents benches on the western slope of the quarry.According to 73*=Max overall slope angle of the quarry The eastern slope is entirely in basalt,without any underlying generated on site Via screening, occasional fill Overall slope wall shale.Therefore,according to thie geotechnical analysis,slopes Import, and organic material such as compost. ---- Reclaimed Conditions geotechnical analysis of the basalt and underlying shale,the Pe can be excavated up to 200'deelp at an maximum cut angle of bench slopes can vary between 40'and 80'tall,and the benches 90°. The maximum height of thel eastern slope at Ralston Quarry Top of eastern slope themselves between 14'and 40'wide.Asphalt Paving Company will be 175'.Drilling and blasting will create benches,but this detail will excavate the slopes in a varying fashion to create aesthetically shows the maximum allowable gieotechnical conditions for pleasing benches. permanent stability. 90' =Max bench cut angle 90*=Max slope for excavation in pure basalt ----,----Rangeland shrubs and grasses RECEIVED T Disturbed Boundary Height of benches Benches are sloped I o soi I-I i ke NOV � 3 ((J�� will vary. towards the wall p See Exhibit F for ry growth Vegetation DIVISION OF RECLAMATION Benches of vary g I 175'=m cavation depth of eastern slope at Ralston Quarry. Iv11NING AND SAFETY widths. medium specifics. Down to the Map Georeferencing Information: quarry bottom � — � O' ��'� �o r y Datum: ❑ NAD27 ❑ NAD83 ❑WGS84 ❑ None(Local) Mapping State Plane: ❑Single Zone ❑North Zone ❑South Zone ❑Other: Projection: UTM: ❑Zone 12 ❑Zone 13 ❑Zone 14 ❑Other: If i)i)�h Local System(Name): File Name:X:1Asphalt Paving CompanyU2alston QuarryWutoCAD\Ralston Quarry 17SEPT14.dwg Quarry floor / 1 Date Plotted: 11/10/14 .a 0047352 r :i M-1974-086 - AM03 Slopes and heights based on geotechnical Mined out basalt bench �:2 analysis by Brierley in 2014 Greg Lewicki And Associates Revisions Notes: Designed: B Date _ Drawn: 11541 Warrington Court Phone (303)-346-5196 Checked: Parker, CO USA 80138 E-Mail-info@lewicki.biz Approved: