|
7900
<br />7.7%
<br />7800
<br />7700
<br />7600
<br />7500
<br />7400
<br />7300
<br />0 +00 5 +00
<br />AS -BUILT HAUL ROAD STATIONS
<br />VF
<br />PROPOSED HAUL ROAD PROFILE (DESIGN)
<br />MINW.,,,.,.
<br />IOPENN
<br />1 ,,,,,,
<br />®......
<br />i "
<br />4.7 5.6% 8.
<br />I.6%
<br />6 9%
<br />Div
<br />:74
<br />s'gr
<br />1 �!
<br />S *
<br />o �� �srzo, 1 11 I I I I I I ( l ( {I /(
<br />/ ]64 3
<br />!'
<br />7s
<br />X O O
<br />]> „ --
<br />1 a
<br />I
<br />]]F39 ill
<br />- DO
<br />i .rs.
<br />�'
<br />77 1 ;
<br />rn:
<br />Yld'3.3.
<br />1&7,1 \
<br />i
<br />t!.a
<br />- 0 +00
<br />PROPOSED HAUL
<br />y k p a ]
<br />(' 5 5 +00
<br />!
<br />1 1 5 6
<br />G
<br />?
<br />]5 3!
<br />Tk.
<br />L)�
<br />n
<br />1 11 =200' c
<br />TOPOGRAPHY MAY 2010
<br />HAUL ROAD DESIGN TOPO
<br />AS -BUILT HAUL ROAD & RUNAWAY RAMP
<br />PIT LIMITS PER MAP 23 AND MAP 23A
<br />SOUTH TAYLOR HAUL ROAD TOPSOIL PILE FOOTPRINTS
<br />DRAINAGE DITCH APPROXIMATE LOCATION
<br />200' 0 200' 400'
<br />SCALE 1 " = 200 FT
<br />N
<br />W E
<br />S
<br />CONTOUR INTERVAL 5 FT.
<br />MAY2010TOPO
<br />stVR®
<br />AUG 2 7 ZQ10
<br />DMSiOn o'1 Redd ton,
<br />PAiai'ng avid Saf*Y
<br />SOUTH TAYLOR HAUL ROAD
<br />ENGINEER'S CERTIFICATION AS -BUILT
<br />1, THOMAS C. PETERSON, being a
<br />Licensed Professional Engineer in SCALE. AS SHOWN
<br />the State of Colorado, do hereby O • DATE. 02103109
<br />certify that this map has been prepared DRWG. BY: TCP- RWF/FSl
<br />to meet the applicable portions of Colorado Colo Coal Company APPROVED BY.-
<br />DRMS Rule 4.03.1 for Haul Roads. 5731 State Highway 13
<br />Meeker, Colorado 61641
<br />```��%\IIIIIIIIIIIT�, I� DRWG NO.
<br />O L IC,O,' �. MAP 25C
<br />•5 `• nFr • s -_ ® I7 �I t� Sheet 1 of 2
<br />F
<br />32257 z • =
<br />C
<br />No. REVISION DATE BY CHK
<br />SS IONAL • ` Off TR -85 As -built Runaway Ramp 12111109 TCP TAT
<br />GT -r TR -86 As -Built South Taylor Haul Road 06109110 TCP KRB
<br />THOMAS C PETERSON
<br />P.E.. o. 3257
<br />7
<br />2, (o Added as -built South Taylor Haul Road runaway ramp labels,
<br />TR -86 horizontal stationing and centerline profiles. Added topsoil pile 08120110 TCP KRB
<br />D ATE locations. Revised construction notes for roadside ditches.
<br />J
<br />10 +00 15 +00 20 +00 25 +00 30 +00
<br />1
<br />! ]!7 1 7800 96%
<br />' +s 11 �: �, I I -� 7700
<br />n o
<br />7600
<br />7.
<br />1&UP I 7500
<br />B. e
<br />a;a
<br />7400
<br />>sn '4% \ ` 5s. n
<br />], -S ),a4 `3 >,2l] ]129.
<br />ea 9.5 a e 7300
<br />- ] a ]153.:
<br />" •] 0 +00 5 +00 10 +00
<br />PROPOSED HAUL ROAD STATIONS
<br />I�I ,
<br />t?.
<br />�rll�
<br />AS -BUILT NORTH RUNAWAY RAMP PROFILE
<br />7600
<br />7500 14.3
<br />-8 .8% -1.8% 2.3%
<br />7400
<br />0 +00 5 +00
<br />AS -BUILT RUNAWAY RAMP STATIONS
<br />1
<br />35 +00
<br />15 +00
<br />7600
<br />7500
<br />7400
<br />10 +00
<br />7900
<br />7800
<br />7700
<br />7600
<br />7500
<br />9.2/ 7400
<br />7300
<br />55 +00 60 +00
<br />7900
<br />7800
<br />7700
<br />7600
<br />7500
<br />5.3
<br />7400
<br />7300
<br />35 +00 40 +00 45 +29
<br />PROFILE LEGEND
<br />PREMINE TOPO
<br />g -� HAUL ROAD DESIGN TOPO
<br />AS -BUILT HAUL ROAD
<br />200' 0 200' 400'
<br />SCALE 1 " = 200 FT
<br />4;5 +00
<br />8.1
<br />50 +00
<br />20 +00 25 +00 30 +00
<br />1 11 =200'
<br />AS -BUILT SOUTH RUNAWAY RAMP PROFILE
<br />8000 8000
<br />7900 X 4.40 7900
<br />-28% 0 .7% 4.2% 10.6
<br />7800 7800
<br />0 +00 5 +00 10 +00
<br />AS -BUILT RUNAWAY RAMP STATIONS
<br />1 11 =200'
<br />TYPICAL HAUL ROAD CROS
<br />40 +00
<br />S SECTION
<br />A A'
<br />7700 7700
<br />-120 Ft Min -
<br />7650 - - 7650
<br />-Road Surfaced with 1 to 1.5 inches of crushed grovel.
<br />� (See Item 5 of Note)
<br />7600 � 7600
<br />7550 Tnangular Ditch \ 7550
<br />(See Item 12 of Note)
<br />7500 7500
<br />7450 7450
<br />7400 7400
<br />400 200 0 200 400
<br />1 " =100'
<br />PLAN VIEW LEGEND
<br />Construction Notes:
<br />This road has been designed to meet the applicable portions of Colorado DRMS Rule 4.03.1 for Haul Roads. It is specifically
<br />designed to meet the applicable regulations as well as Rio Tinto internal road design guidelines while minimizing additional
<br />disturbed area and preventing environmental damage. This design specifically covers those portions of the road which are
<br />"Out of Pit" and defined by the pit boundary shown by the legend. For those portions of the roadway within the pit area,
<br />normal haul road construction practices apply. Other design requirements are shown below:
<br />I. The field engineer shall have the discretion to move the road centerline horizontally a distance of up to 200 feet in any direction
<br />as necessary to meet field conditions as long as the slopes and widths are maintained.
<br />2- Maximum road grade is less than 10% as shown on the profile.
<br />3. Cross fall slopes between centerline and road shoulders shall be between 1 and 2 percent as directed by the field engineer.
<br />4. Design width shall be as shown on the cross - section.
<br />5. Upon completion, the entire running surface of the road shall be surfaced with approximately 1 to 1.5 inches of rock or crushed gravel for traction. Additional
<br />crushed gravel surfacing shall be reapplied as necessary throughout the life of the roadway..
<br />6. A 6 foot high berm shall be used at all locations where the roadway is elevated.
<br />7. Roadway signage shall be added as appropriate.
<br />8. Reflectors and Guideposts shall be installed as appropriate per Rio Tinto road standards.
<br />9. Cut slopes shall be a5H:1V or less when completed in competent rock. Cut slopes in unconsolidated materials shall be laid back at 1,511:1V
<br />or less as directed by the field engineer.
<br />10. Requirements for fill placement shall be as specifically described in Rule 4.03.1 Haul Roads (3) (e) "Road embankments ". Key elements of these requirements
<br />are summarized below.
<br />All vegetation material and topsoil shall be removed fr om g p ed o the embankment foundation during construction. The existing ground shall be plowed, stepped, or
<br />keyed in as required by this regulation. The material for embankments shall be reasonably free of organic material, coal, frozen materials, wet or peat material,
<br />natural soils containing organic matter, or any other material considered unsuitable for use. Material containing by volume less than 25 percent of rock larger
<br />than 6 inches in greatest dimension shall be spread in successive uniform layers not exceeding 12 inches in thickness before compaction. Where the material
<br />for an embankment consists of large -size rock, broken stone, or fragmented material that makes placing it in 12 inch layers impossible, the embankment shall be
<br />constructed in uniform layers not exceeding in thickness the approximate average size tof the rock used. Each layer of the embankment shall be completed,
<br />leveled, and compacted before the succeeding layer is placed. Embankment layers shall be compacted as necessary to ensure that the embankment is
<br />adequate to support the anticipated use. Material shall be placed in an embankment only when its moisture content is within acceptable levels to achieve design
<br />compaction. Embankment slopes shall not be steeper than 2H :1V, except where the embankment material is a minimum 85 percent rock. In this case, slopes
<br />shall not be steeper than 1.35H:1V.
<br />11. Drainage from haul road shall be directed to the pit(s) wherever possible.
<br />A ditch shall be installed at toe of all cut slopes. The ditch r
<br />12. p t cr osses the main haul road on a south-southwest/north-northeast direction from As -Built Haul Road Station
<br />46 +00 to approximately Station 49 +00. The ditch flows through a cut in the embankment and terminates in the pit. See Volume 2C, Exhibit 7, Item 14Q for ditch design.
<br />13. If needed, temporary erosion control measures shall be implemented during construction to rminimize sedimentation and erosion until permanent control measures
<br />can be established. The field engineer shall determine the need for control measures during construction. Such temporary and permanet control measures
<br />would include silt fences, straw bales, straw wattles, rock check dams, or other measures such as downstream sediment ponds.
<br />P A
<br />7s
<br />X O O
<br />]> „ --
<br />1 a
<br />I
<br />]]F39 ill
<br />- DO
<br />i .rs.
<br />�'
<br />77 1 ;
<br />rn:
<br />Yld'3.3.
<br />1&7,1 \
<br />i
<br />t!.a
<br />- 0 +00
<br />PROPOSED HAUL
<br />y k p a ]
<br />(' 5 5 +00
<br />!
<br />1 1 5 6
<br />G
<br />?
<br />]5 3!
<br />Tk.
<br />L)�
<br />n
<br />1 11 =200' c
<br />TOPOGRAPHY MAY 2010
<br />HAUL ROAD DESIGN TOPO
<br />AS -BUILT HAUL ROAD & RUNAWAY RAMP
<br />PIT LIMITS PER MAP 23 AND MAP 23A
<br />SOUTH TAYLOR HAUL ROAD TOPSOIL PILE FOOTPRINTS
<br />DRAINAGE DITCH APPROXIMATE LOCATION
<br />200' 0 200' 400'
<br />SCALE 1 " = 200 FT
<br />N
<br />W E
<br />S
<br />CONTOUR INTERVAL 5 FT.
<br />MAY2010TOPO
<br />stVR®
<br />AUG 2 7 ZQ10
<br />DMSiOn o'1 Redd ton,
<br />PAiai'ng avid Saf*Y
<br />SOUTH TAYLOR HAUL ROAD
<br />ENGINEER'S CERTIFICATION AS -BUILT
<br />1, THOMAS C. PETERSON, being a
<br />Licensed Professional Engineer in SCALE. AS SHOWN
<br />the State of Colorado, do hereby O • DATE. 02103109
<br />certify that this map has been prepared DRWG. BY: TCP- RWF/FSl
<br />to meet the applicable portions of Colorado Colo Coal Company APPROVED BY.-
<br />DRMS Rule 4.03.1 for Haul Roads. 5731 State Highway 13
<br />Meeker, Colorado 61641
<br />```��%\IIIIIIIIIIIT�, I� DRWG NO.
<br />O L IC,O,' �. MAP 25C
<br />•5 `• nFr • s -_ ® I7 �I t� Sheet 1 of 2
<br />F
<br />32257 z • =
<br />C
<br />No. REVISION DATE BY CHK
<br />SS IONAL • ` Off TR -85 As -built Runaway Ramp 12111109 TCP TAT
<br />GT -r TR -86 As -Built South Taylor Haul Road 06109110 TCP KRB
<br />THOMAS C PETERSON
<br />P.E.. o. 3257
<br />7
<br />2, (o Added as -built South Taylor Haul Road runaway ramp labels,
<br />TR -86 horizontal stationing and centerline profiles. Added topsoil pile 08120110 TCP KRB
<br />D ATE locations. Revised construction notes for roadside ditches.
<br />J
<br />10 +00 15 +00 20 +00 25 +00 30 +00
<br />1
<br />! ]!7 1 7800 96%
<br />' +s 11 �: �, I I -� 7700
<br />n o
<br />7600
<br />7.
<br />1&UP I 7500
<br />B. e
<br />a;a
<br />7400
<br />>sn '4% \ ` 5s. n
<br />], -S ),a4 `3 >,2l] ]129.
<br />ea 9.5 a e 7300
<br />- ] a ]153.:
<br />" •] 0 +00 5 +00 10 +00
<br />PROPOSED HAUL ROAD STATIONS
<br />I�I ,
<br />t?.
<br />�rll�
<br />AS -BUILT NORTH RUNAWAY RAMP PROFILE
<br />7600
<br />7500 14.3
<br />-8 .8% -1.8% 2.3%
<br />7400
<br />0 +00 5 +00
<br />AS -BUILT RUNAWAY RAMP STATIONS
<br />1
<br />35 +00
<br />15 +00
<br />7600
<br />7500
<br />7400
<br />10 +00
<br />7900
<br />7800
<br />7700
<br />7600
<br />7500
<br />9.2/ 7400
<br />7300
<br />55 +00 60 +00
<br />7900
<br />7800
<br />7700
<br />7600
<br />7500
<br />5.3
<br />7400
<br />7300
<br />35 +00 40 +00 45 +29
<br />PROFILE LEGEND
<br />PREMINE TOPO
<br />g -� HAUL ROAD DESIGN TOPO
<br />AS -BUILT HAUL ROAD
<br />200' 0 200' 400'
<br />SCALE 1 " = 200 FT
<br />4;5 +00
<br />8.1
<br />50 +00
<br />20 +00 25 +00 30 +00
<br />1 11 =200'
<br />AS -BUILT SOUTH RUNAWAY RAMP PROFILE
<br />8000 8000
<br />7900 X 4.40 7900
<br />-28% 0 .7% 4.2% 10.6
<br />7800 7800
<br />0 +00 5 +00 10 +00
<br />AS -BUILT RUNAWAY RAMP STATIONS
<br />1 11 =200'
<br />TYPICAL HAUL ROAD CROS
<br />40 +00
<br />S SECTION
<br />A A'
<br />7700 7700
<br />-120 Ft Min -
<br />7650 - - 7650
<br />-Road Surfaced with 1 to 1.5 inches of crushed grovel.
<br />� (See Item 5 of Note)
<br />7600 � 7600
<br />7550 Tnangular Ditch \ 7550
<br />(See Item 12 of Note)
<br />7500 7500
<br />7450 7450
<br />7400 7400
<br />400 200 0 200 400
<br />1 " =100'
<br />PLAN VIEW LEGEND
<br />Construction Notes:
<br />This road has been designed to meet the applicable portions of Colorado DRMS Rule 4.03.1 for Haul Roads. It is specifically
<br />designed to meet the applicable regulations as well as Rio Tinto internal road design guidelines while minimizing additional
<br />disturbed area and preventing environmental damage. This design specifically covers those portions of the road which are
<br />"Out of Pit" and defined by the pit boundary shown by the legend. For those portions of the roadway within the pit area,
<br />normal haul road construction practices apply. Other design requirements are shown below:
<br />I. The field engineer shall have the discretion to move the road centerline horizontally a distance of up to 200 feet in any direction
<br />as necessary to meet field conditions as long as the slopes and widths are maintained.
<br />2- Maximum road grade is less than 10% as shown on the profile.
<br />3. Cross fall slopes between centerline and road shoulders shall be between 1 and 2 percent as directed by the field engineer.
<br />4. Design width shall be as shown on the cross - section.
<br />5. Upon completion, the entire running surface of the road shall be surfaced with approximately 1 to 1.5 inches of rock or crushed gravel for traction. Additional
<br />crushed gravel surfacing shall be reapplied as necessary throughout the life of the roadway..
<br />6. A 6 foot high berm shall be used at all locations where the roadway is elevated.
<br />7. Roadway signage shall be added as appropriate.
<br />8. Reflectors and Guideposts shall be installed as appropriate per Rio Tinto road standards.
<br />9. Cut slopes shall be a5H:1V or less when completed in competent rock. Cut slopes in unconsolidated materials shall be laid back at 1,511:1V
<br />or less as directed by the field engineer.
<br />10. Requirements for fill placement shall be as specifically described in Rule 4.03.1 Haul Roads (3) (e) "Road embankments ". Key elements of these requirements
<br />are summarized below.
<br />All vegetation material and topsoil shall be removed fr om g p ed o the embankment foundation during construction. The existing ground shall be plowed, stepped, or
<br />keyed in as required by this regulation. The material for embankments shall be reasonably free of organic material, coal, frozen materials, wet or peat material,
<br />natural soils containing organic matter, or any other material considered unsuitable for use. Material containing by volume less than 25 percent of rock larger
<br />than 6 inches in greatest dimension shall be spread in successive uniform layers not exceeding 12 inches in thickness before compaction. Where the material
<br />for an embankment consists of large -size rock, broken stone, or fragmented material that makes placing it in 12 inch layers impossible, the embankment shall be
<br />constructed in uniform layers not exceeding in thickness the approximate average size tof the rock used. Each layer of the embankment shall be completed,
<br />leveled, and compacted before the succeeding layer is placed. Embankment layers shall be compacted as necessary to ensure that the embankment is
<br />adequate to support the anticipated use. Material shall be placed in an embankment only when its moisture content is within acceptable levels to achieve design
<br />compaction. Embankment slopes shall not be steeper than 2H :1V, except where the embankment material is a minimum 85 percent rock. In this case, slopes
<br />shall not be steeper than 1.35H:1V.
<br />11. Drainage from haul road shall be directed to the pit(s) wherever possible.
<br />A ditch shall be installed at toe of all cut slopes. The ditch r
<br />12. p t cr osses the main haul road on a south-southwest/north-northeast direction from As -Built Haul Road Station
<br />46 +00 to approximately Station 49 +00. The ditch flows through a cut in the embankment and terminates in the pit. See Volume 2C, Exhibit 7, Item 14Q for ditch design.
<br />13. If needed, temporary erosion control measures shall be implemented during construction to rminimize sedimentation and erosion until permanent control measures
<br />can be established. The field engineer shall determine the need for control measures during construction. Such temporary and permanet control measures
<br />would include silt fences, straw bales, straw wattles, rock check dams, or other measures such as downstream sediment ponds.
<br />
|