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 # 024 Page 1 of 2
BULLDOZER WORK
Task description: Regrade ditch D5
Site: Colowyo Coal Mine
PROJECT IDENTIFICATION
Task #: 024
Date: 3/1512017
User: ZTT
Permit Action: 13C
State: Colorado
County: Moffat
Agency or organization name:
HOURLY EQUIPMENT COST
Basic Machine:
Horsepower:
Blade Type:
Attachment:
Shift Basis:
Data Source:
Cost Breakdown:
Cat D8T - 8SU
310
Semi -Universal
NA
(CRG),
r��
Permit/Job#: _C1981019
Abbreviation: None
Filename: C019-024
Total unit Cost/Hour: _$171.97
Total Fleet Cost/Hour: $171.97
MATERIAL QUANTITIES
Initial Volume: 1,727
Swell factor: 1.000
Loose volume: 1,727 LCY
Source of estimated volume: _Exhibit 7-23B, Table 1, Exh. 7 -item 23, Fig. B -I
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 Ibs/LCY
Weight description: Decomposed rock - 25% Rock, 75% Earth
Job Condition Correction Factor
Source
Utilization %
Ownership Cost/Hour-
$83.81
Material consistency:
NA
Operating
Operating Cost/Hour:
$_46.32
1.200 _ _
(-
_
Ripper own. Cost/Hour:
$0.00
(AVG.)
NA__
Ripper op. Cost/Hour:
$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: 1,727
Swell factor: 1.000
Loose volume: 1,727 LCY
Source of estimated volume: _Exhibit 7-23B, Table 1, Exh. 7 -item 23, Fig. B -I
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 Ibs/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.)