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 # 023
BULLDOZER WORK
Task description: Regrrade ditch D4
Site: Colowyo Coal Mine
PROJECT IDENTIFICATION
Task #: 023
Date: 311512017
User: ZTT
Permit Action: 13C
State: Colorado
County: Moffat
Agency or organization name:
HOURLY EQUIPMENT COST
DRMS
Basic Machine:
Cat D8T - 8SU
Horsepower:
310
Blade Type:
Semi -Universal
Attachment:
NA
Shift Basis:
1 per day
Data Source:
(CRG)
Cost Breakdown:
Page 1 of 2
Permit/Job#: C1981019
Abbreviation: None
Filename: CO 19-023
Total unit Cost/Hour: $171.97
Total Fleet Cost/Hour: $171.97
MATERIAL QUANTITIES
Utilization %
Ownership CostlHour:
$83.81
NA
Operating Cost/Hour:
_ _
$46.32
_
70
_
Ripper own. Cost/Hour:
_
NA
Ripper op. Cost/Hour:
_$0.00
$0.00
0
Operator Cost/Hour:
$41.85
NA
Total unit Cost/Hour: $171.97
Total Fleet Cost/Hour: $171.97
MATERIAL QUANTITIES
Initial Volume:
2,726
Swell factor:
1.000
Loose volume:
2,726 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
I,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:
1.200
S -BY -S)
Visibility:
1.000
AVG.