2018-01-11_REVISION - C1981019

• Permit No: C1981019
• IBM Index Class Name: Revision
• Doc Date: 1/11/2018
• Doc Name: Adequacy Review - Preliminary
• From: DRMS
• To: Colowyo Coal Company
• Type & Sequence: RN7
• Email Name: ZTT
• Media Type: D
• Archive: No

Bulldozer Worksheet Cont'd Task # 022
BULLDOZER WORK
Task description: Regradc ditch D3
Site: Colo_wyo Coal Mine Permit Action: 13C
PROJECT IDENTIFICATION
Task #: 022 State: Colorado
Date: 311512017 County: Moffat
User: ZTT
Agency or organization name; DRMS
HOURLY EQUIPMENT COST
Basic Machine:
Cat D8T - 8SU
Horsepower:
_310
Blade Type:
_Semi -Universal
Attachment:
NA
Shift Basis:
mer 4a1 _
Data Source:
(CRG)
Cost Breakdown:
Ownership Cost/Hour:
Operating Cost/Hour:
Ripper own. Cost/Hour:
Ripper op. Cost/Hour:
Operator Cost/Hour.
Total unit Cost/Hour: $171.97
Total Fleet Cost/Hour: $171.97
Utilization %
$83.81
NA
$46,32
Swell factor:
70
_
$0.00
..._...
._
NA
$0.00
I.200
0
$41.85
1.000
NA
Pagel of 2
Permit/Job#: C1981019
Abbreviation: None
Filename: C019-022
MATERIAL QUANTITIES
Initial Volume:
3,814
Swell factor:
1.000
Loose volume:
3,814 LCY
Source of estimated volume: Exhibit 7-23B, Table 1, Exh. 7 -item 23, Fig. B-1
Source of estimated swell factor: Cat Handbook
HOURLY PRODUCTION
Average push distance.
Unadjusted hourly production:
50 feet
1,400.0 LCY/hr
Materials consistency description: Compacted fill or embankment 0.9
Average push gradient: -20%
Average site altitude: 7,500 feet
Material weight: 2,650 lbs/LCY
Weight description: Decomposed rock - 25% Rock, 75% Earth
Job Condition Correction Factor
Source
Operator Skill:
0.750
AVG.
Material consistency:
0.900
CAT HB
Dozing method:
I.200
_
S -B
Visibility:
1.000
AVG.