|
SCULLION GULCH
<br />CHANNEL DIVERSION CUTOFF
<br />WALL
<br />SEE DWG. D- 346 -C -108
<br />EXTENDED
<br />/ TO EL. 5626
<br />/ rL "R7 "ACCESS ROAD
<br />SEE DWG. D -346 -C -125 21 � C
<br />o
<br />T2N
<br />32 R 101 W
<br />5 4
<br />68 F6'
<br />io \S6.
<br />0
<br />h�
<br />i I
<br />LU
<br />N
<br />CID
<br />o \\ \ \ C
<br />` 20 500 N
<br />i °
<br />a M
<br />T w
<br />x _ 5620 T °
<br />ro d w I ao° -
<br />° �°°°
<br />J W ° -o zN�S I I I
<br />WNW
<br />[a Co
<br />"
<br />a'�
<br />\ V
<br />oo P1#5 "R7 "ROAD & F L
<br />EAST ABUTMENT DP- 1 BERM
<br />I
<br />AREA
<br />(ACRES)
<br />SHADED AREA
<br />5619
<br />INDICATES APPROX Lr
<br />0.06
<br />LIMITS OF RIPRAP �
<br />0.597
<br />DENOTES BOREHOLES
<br />NOTE
<br />0
<br />\
<br />DP -1 BENCH MARK(REBAR SET IN CONCRETE)
<br />1.240
<br />EL.5613.53 I ±(0.09)
<br />11 _
<br />PLAN —SEDIM
<br />o �
<br />j N .3 20,052.00
<br />E 1,099,016.00
<br />ENT POND
<br />L31�DR,
<br />SCALE
<br />DP -1
<br />150
<br />__BERM STA_p ±g49L
<br />320,227.30 N
<br />1,099,063.24 E
<br />HORIZONTAL BARS
<br />#4 @12 "OC
<br />VERTICAL BARS
<br />#4 @16 "OC
<br />MIN
<br />PRINCIPAL
<br />EMERG. SPILLWAY SPILLWAY
<br />CAMBER SEE
<br />NOTE 1
<br />1
<br />2
<br />EL 5629,0'
<br />CONCRETE
<br />CUTOFF WALL
<br />HORIZONTAL SCALE
<br />CHANNEL
<br />i DIVERSION PIPE
<br />SECTION Al
<br />RIPRAP see dwg. C -128 & PLAN
<br />BELOW
<br />PRINCIPAL
<br />SPILLWAY (DP -1)
<br />SEE DWG. D- 346 -126
<br />GRAVEL -LINER
<br />FL BOREHOLE I BOREHOLE F L /
<br />/ - EL 5619
<br />EL 5618
<br />j EL 5614
<br />EL 5611.5
<br />EL 5609.5
<br />EL 5603
<br />i EL ssol
<br />J EL 5594
<br />I EL 5596.5
<br />FI 51199 F EL 5589
<br />EL 5585.5 f EL 5583
<br />BERM AND
<br />KEYWAY
<br />SEE DWG. D- 346 -C -126 &
<br />EXISTING GRADE D- 346 -C -130
<br />SECTION
<br />0
<br />20 0 20 40 60
<br />SCALE
<br />BERM AND
<br />TOE OF
<br />BERM
<br />(MIN)
<br />12 "DEEP RIP -RAP
<br />ENTIRE LENGTH OF
<br />COLLECTION DITCH
<br />ON TOP OF 6" OF
<br />BEDDING MATERIAL
<br />EL 5628.0' I
<br />EL 5625.5'
<br />EXISTING GRADE
<br />EL 5597.0' BOTTOM OF
<br />KEYWAY
<br />BOREHOLE
<br />1
<br />I i q�-LY7
<br />( COLLECTION
<br />DITCH
<br />CLAY LINER
<br />ROAD
<br />VERY STIFF,DRY,LIGHT BROWN
<br />5619'..0
<br />I \ 4
<br />GRADED SAND DRAIN
<br />ENTIRE LENGTH OF
<br />BERM
<br />SECTIO
<br />COORDINATE SYSTEM, SHOWN ON MAPS, IS BASED ON
<br />20 0 COLORADO STATE PLANE COORDINATE SYSTEM, NAD27
<br />NORTH ZONE, CORRECTED TO MEAN GROUND
<br />COORDINATES. TO CHANGE TO COLORADO STATE PLANE, SEA
<br />LEVEL, COORDINATES DIVIDE BY 1.0003210
<br />SCALE
<br />MIN
<br />N �C
<br />5630
<br />5620
<br />5610
<br />5600
<br />POND CALCULATIONS
<br />REQUIRED CAPACITY
<br />TOTAL POND VOLUME 7.07 A.F.
<br />VOLUME NEED FOR WATER TREATMENT 3.44 A.F.
<br />REMAINING VOLUME AVAILABLE FOR SEDIMENT
<br />RETENTION 3.63 A.F.
<br />(VOLUMES BASED ON TOP OF PRINCIPAL SPILLWAY) (2' BELOW TOP OF RISER)
<br />POND VOLUME
<br />CONTOUR
<br />AREA
<br />(ACRES)
<br />ACCUM.CAP.
<br />(ACRES FT)
<br />5619
<br />0 "298
<br />0.06
<br />5620
<br />0.597
<br />0.500
<br />5621
<br />0.893
<br />1.240
<br />5622
<br />1.187
<br />2.277
<br />5623
<br />1.466
<br />3.601
<br />5624
<br />1.750
<br />5.207
<br />5625
<br />1.986
<br />7.074
<br />5626
<br />2.200
<br />9.166
<br />SURFACE AREA
<br />AREA (a)- TOP OF PRINCIPAL SPILLWAY
<br />SPILLWAY DISCHARGE DESIGN
<br />PEAK DISCHARGE FOR 10 -YR 24 -HR STORM
<br />PEAK DISCHARGE FOR 25 YEAR -24 HOUR STORM -
<br />THEORETICAL DETENTION TIME 10 YEAR -24 HOUR
<br />PEAK DISCHARGE FOR 100 YEAR -24 HOUR STORM
<br />BOREHOLE LEGEND
<br />® FILL PAD FOR DRILL RIG (SAND,SILT)
<br />CLAY,SILTY,FINE,ANGULAR GRAVEL
<br />ROCK FRAGMENTS,VERY STIFF,
<br />SLIGHTLY MOIST,LIGHT BROWN
<br />SILT,FINE,SAND,CLAYEY,SCATTERED
<br />ANGULAR GRAVEL ROCK FRAGMENTS.
<br />SILT,SANDY AND SAND SILTY,CLAYEY,
<br />5 SCATTERED ANGULAR GRAVEL,VERY STIFF,
<br />_ DRY TO LIGHTLY MOIST,LIGHT BROWN
<br />NOTES:
<br />1 THE DAM EMBAN'.KMENT SHALL BE OVER-
<br />BUILT IN A CAMBER FROM 0' -0" AT THE
<br />ABUTMENT TO V -3" AT THE MAXIMUM
<br />EMBANKMENT SECTION ABOVE THE ELEVATION
<br />SHOWN ON THE DRAWING TO ALLOW FOR
<br />SETTLEMENT.
<br />2 FOUNDATION PREPARATION: ALL TOP SOIL,
<br />ORGANIC AND DELETERIOUS MATERIALS
<br />SHALL BE REMOVED FROM BENEATH
<br />THE EMBANKMENT. ANY LOOSE OR SOFT
<br />MATERIAL SHALL BE REMOVED. FILL
<br />PLACED ON SLOPES STEEPER THAN FIVE
<br />HORIZONTAL TO ONE VERTICAL SHALL BE
<br />KEYED INTO THE SLOPE BY BENCHING.
<br />3 EMBANKMENT MATERIALS: THE SEDIMENT
<br />POND EMBANKMENT SHALL BE CONSTRUCTED
<br />1.99 ACRES
<br />0.56 C.F.S
<br />2.40 C.F.S.
<br />30.5 H.R.S.
<br />4.57 C.F.S.
<br />CLAYSTONE -SILTY TO VERY SILTY,
<br />CARBONACEOUS TO VERY CARBONACEOUS
<br />U NEAR COAL BEDS, GRAY TO BLACK.
<br />SANDSTONE - CLAYSTONE- INTERBEDDED,FINE
<br />GRAINED,LIGHT TO MED GRAY.
<br />COAL- FRACTURED,BLOCKY
<br />WITH A CLEAN, COHESIVE FILL MATERIAL
<br />MEETING THE FOLLOWING REQUIREMENTS:
<br />LIQUID LIMIT: BETWEEN 30 AND 50
<br />PLASTICITY INDEX: BETWEEN 10 AND 25
<br />FINES: MIN. 70% PASSING NO. 200 SIEVE.
<br />4 FILTER MATERIALS: FILTER MATERIALS
<br />SHALL CONSIST OF FREE - DRAINING SAND,
<br />GRAVEL, SLAG OR CRUSHED STONE MEETING
<br />GRADATION REQUIREMENTS OF ASTM
<br />C -33 CONC. AGGREGATE, FINE AGGREGATE.
<br />5 ALL MATERIALS PLACED IN THE EMBANKMENT
<br />SHALL BE COMPACTED TO 95% OF MAXIMUM
<br />DENSITY AT OPTIMUM MOISTURE PER ASTM
<br />D -698 (STANDARD PROCTOR) IN ACCORDANCE WITH
<br />SPECIFICATIONS.
<br />6. CLAY LINER: THE CLAY LINER SHALL BE
<br />CONSTRUCTED OF MATERIAL CONFORMING TO THE
<br />REQUIREMENTS OF NOTE 3. AS AN ALTERNATE A
<br />BENONITE CLAY LINER MAY BE USED CONSISTING OF
<br />TWO APPLICATIONS OF BENTONITE POWDER AT 1.5
<br />PSF EACH. EACH APPLICATION SHALL BE RAKED,
<br />SCARIFIED OR DISK BLENDED WITH THE EXISTING
<br />SOIL TO A DEPTH OF APPROX. 41N. AND COMPACTED.
<br />TOTAL COMPACTED THICKNESS OF BENTONITE
<br />LINER SHALL BE AT LEAST 8 INCHES.
<br />c
<br />MAR 2 6 2010
<br />DM61)n 01 RCCla mn,
<br />Mining and SSE/
<br />MAP 34
<br />REVISIONS
<br />)ATE I CHK'D
<br />9 -1 -87
<br />3 -11 -10
<br />REFERENCE DRAWINGS
<br />Drawing Number
<br />D -346 -C -108
<br />D- 346 -C -125
<br />D- 346 -C -126
<br />D- 346 -C -109
<br />D- 346 -C -130
<br />D- 346 -C -128
<br />Title
<br />SCULLION GULCH CHANNEL DIVERSION
<br />SEDIMENT POND ACCESS ROAD "R7"
<br />PRINCIPAL SPILLWAY
<br />TYPICAL DRAINAGE- SECT -& DETAILS
<br />SCULLION GULCH TYP.DETAILS
<br />CHANNEL DIVERSION SECTS. & DETAILS
<br />ISSUE RECORD ENGR. RECORD CURRESNT DRAWING O:WutoCad Drawings \SURFACE_ PROJECTS \Schematic Drawings \D PORTAL AREA SEDIMENT POND MAP34.dwg
<br />INITIAL DATE STATU
<br />DATE ISSUE REV. TO FOR DCHECKEDYBY I NITIAL DATE DRAWN FROM ORIGINAL FORD, BACON & DAVIS INC.
<br />PRELIMINARY FROM e
<br />OR PLANNING TAKEN FRO D File Nam
<br />ELECT CK
<br />g.
<br />DESERADO MINE SURFACE FACILITY
<br />D PORTAL AREA
<br />SEDIMENT POND (DP -1)
<br />PLANS, SECTIONS AND DETAILS
<br />BLUE MOUNTAIN ENERGY INC.
<br />'
<br />DESERADO MINE RANGELY, COLORADO
<br />INST CK
<br />APPROVED FOR
<br />FINAL DESIGN
<br />MECH CK
<br />PIPING CK
<br />IN FINAL DESIGN
<br />D PORTAL AREA SEDIMENT POND MAP34
<br />STRUCT CK
<br />SQUADLDR
<br />APPROVED FOR
<br />QUOTE PURCHASE
<br />Dwg" by: RLee
<br />Dwg. File Name:
<br />CHIEF ENG /DES
<br />TAKEN FROM Dwg. File NUMBER:
<br />PROJ ENG
<br />APPROVED FOR
<br />CONSTRUCTION
<br />Chk. by:
<br />Appr, by: If/
<br />���
<br />APPROVED
<br />u
<br />U
<br />ZCIV -0110 1
<br />Scale : AS NOTED Date. 8/20/2009
<br />/ @12 "EW. ORIGINAL 31
<br />I
<br />CUTOFF
<br />`1 WALL
<br />V
<br />\ ( i
<br />l I I 30 10 " --I i--
<br />1 SECTION
<br />EL.5629'.0
<br />3
<br />0 +00 1 +00 2 +00 3 +00
<br />PROFILE - EMERGENCY SPILLWAY
<br />SCALE: 1 " =50'H EMERGENCY SPILLWAY CREST EL5626.0'
<br />
|