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<br />LEGEND
<br />0 la - ".. 3 T �•. �• ` EXISTING PROPOSED
<br />7000
<br />CONTOUR
<br />CULVERT
<br />�' /j /r f / . • / C/ ( _ ' j — — — ROAD /BENCH
<br />j j
<br />DRAINAGE BASIN BOUNDARY
<br />r t j r BD -1 DRAINAGE DESIGNATION
<br />j- j RD A -1 R DA -1 a DITCH
<br />f CRUSHER _ -.r t 1
<br />BLDG c \�,r' / f UNDERDRAIN
<br />r
<br />_ ✓ r ✓ 2.3%
<br />10 f}f.�`f =h SITE GRADING SLOPE
<br />�= e
<br />f � j - / j 1 8 ! f tc•l crOR W ✓ f j x7000 SPOT ELEVATION
<br />87 WATERLINE
<br />j TR4 SFER t '' `' ✓
<br />� j j .f,
<br />�. ` r' r G B. M. BENCH MARK (REFER TO TCC)
<br />P ......'' _ . j ^r B� Li A ➢-1y ."'�..., .. jaSf ry j 0,1
<br />RDA -,I P1 APPROXIMATE PROPOSED
<br />- ! f, ✓,, j s� U, _ II r ✓ PIEZOMETER LOCATION (TYP)
<br />�-
<br />a r ( � 3 —/4 GMP TO BE FIELD LOCATED
<br />N �'T f j te r. NOTES
<br />o
<br />0
<br />� /' � � BASE TOPOGRAPHY DATUM AND EXISTING CONDITIONS PR OVIDED B Y
<br />RFU B/ ® / f ��o N s ` TWENTYMILE COAL COMPANY. COMPILED MAPS IN CLUDE
<br />' j r
<br />1
<br />rC f 0 SHEET_17.DWG, SHEET_18.DWG, SHEET_22.DWG,
<br />�
<br />j` C' SHT_ 23_ &_50_ACRES_AROUND_PIT_2004.DWG,
<br />r / t j (E XIS ,. T
<br />� = MAP24_SHT -1 _OF_3_ WITH _COMBINED- PILE_TOPO_092007.DWG,
<br />TWENTYMILE_07_31 _08_CONT.DWG.
<br />/
<br />WA TER EL gsaes L ! j r 2. PROPOSED CHANNEL ALIGNMENT AND DRAINAGE DESIGN FOR 20
<br />— i f / ✓ s(}
<br />j• f '` ' f i1 ;Cs ° " MILLION CUBIC YARD EXPANSION PROVIDED BY
<br />HYDRO — ENVIRONMENTAL SOLUTIONS, INC.
<br />0P DA 1 3. REFER TO NWCC FOR ENGINEERING REPORT.
<br />42 » r ' 4. ALL WORK SHALL MEET THE DESIGN REQUIREMENTS OF MINE
<br />` ! " —� �� - SAFETY AND HEALTH ADMINISTRATION AND COLORADO DIVISION OF
<br />jf `' O / j RECLAMATION, MINING AND SAFETY.
<br />~ j R / �' 1 ^s m` s ' 5. REFUSE PILE AND HAUL ROAD LAYOUT PROVIDED BY TWENTYMILE
<br />j / j RD —5 °`! ` ` COAL COMPANY.
<br />I TCH 30
<br />} r
<br />M P f'�N /� 4— �-$� "' � � � ,— �` , 691 � • '�s��' j � � �' �
<br />7 ! 15 15 16 ,
<br />/ C� M Pte` r Y (EXY I/ V G) — 4 BERM
<br />LII/I�'SIC�N, X j f ' j
<br />RDA- 17--./l f . � j � �, � � � f ` '�X� { � � - �,� 2� 21 APP CABLE)
<br />'REF LAS% E�X`I.3T1 �`G'�j ,�'� � ,� � �' j � -i�; � , r.� r J' ` F ,' s �' , � � �. � �;,,, �` 2° � 2�7
<br />0 ° .�!'/ `��� /, ° j f ,� j� /' r�� DITCH — f��� , TYPICAL ROAD SECTION
<br />-°
<br />EXISTING j� - /C) ° AT ' i -' ` = ' `` r 1 , -j RDA 7 -`
<br />`� f
<br />1
<br />jl �; , 68 .0 f ' j M j' jj S,
<br />-- R A -1 b— 1j..) ! j , j j P f s j j j q f
<br />c 87 j f � I r . _ q ty 60
<br />(� � r S
<br />R E P � �1L A W � R s �
<br />» 1 — D
<br />45 � 15
<br />3 6 M' �1/ 9 D 7 A
<br />—a. I 5 (,. I ( z r -r�.�a i $ 1r. to A ,r
<br />f3 ( — —
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<br />y
<br />ls M P _ i
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<br />rfr` -� �- 2 2%
<br />I 1m Ii' 69 .�8% �� / j / ✓ 1 X09 r° /
<br />j D 3 1
<br />�� jj � j r r "'•-���_.
<br />A ll
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<br />r ✓'jd' "ti. +� 1 � � r . f f r +n'.'.� :
<br />rj/"
<br />f r ff
<br />JO
<br />---' r*.� CALL UTILITY NOTIFICATION � q
<br />@�
<br />s�— r Divlsio� f �BN
<br />n4 .•t� /o j j ` '' �"` ` ! CENTER OF COLORADO 6 #R @ @Iy
<br />r'
<br />r /r ,: � � -- ��_m --' 1-800-922-1987
<br />�
<br />�I\
<br />j t
<br />f
<br />69 BEFORE ,r / I rit CALL 2 BUSINESS DAYS IN ADVANCE
<br />',�. t �'• '� } �' BEFORE YOU DIG, GRADE, OR EXCAVATE
<br />t i FOR THE MARKING OF UNDERGROUND
<br />MEMBER UTILITIES
<br />RDA-5a—l'
<br />! r
<br />" f REVISIONS
<br />- --� CMP
<br />� No. Item Date
<br />_R a
<br />A'- ' �,
<br />,r � � 1 TR -67 09/2009
<br />2 TR -67 MINOR UNDERDRAIN REALIGNMENT 03/2010
<br />_ r E # 7
<br />� Co CIVIL DESIGN CONSULTANTS INC. 2009
<br />r -� ` ' 200 100 0 100 300 Date: 6/17/09 TWENTYMILE COAL COMPANY
<br />T .-
<br />Drawn: LAM
<br />r / r
<br />s <., �
<br />' l �j 0 ( IN FEET Designed: MRB
<br />° 0p 1 inch = 100 ft. COAL REFUSE DISPOSAL AREA
<br />/ j 2' CONTOUR INTERVAL Scale: As Noted ROAD PLAN
<br />moo BD -3 F
<br />RDA -5a WATE S-H�D
<br />-"� w :m Civil Design Consultants, Inc.
<br />5z y ° Engineers and Planners
<br />— 3 �""• -�� .:�� r �' i " RDA .: .',.: �,, U �� ` 1 First Financial Center, 2145 Resort Drive, Suite 100
<br />t3
<br />�, /, . t�s ✓�l�' I� 0 Steamboat Springs, CO 80487
<br />Tel (970) 879 -3022 Fax(970)879 -3028
<br />SHEET NO C -103 I PROJECT NO. 4168.001A
<br />P � V 2 (0G `r,7 Z 51,3 (0
<br />
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