2016-11-23_REVISION - C1981019 ‎(2)‎

• Permit No: C1981019
• IBM Index Class Name: Revision
• Doc Date: 11/23/2016
• Doc Name: Adequacy Review - Preliminary
• From: DRMS
• To: Colowyo Coal Company L.P
• Type & Sequence: MR165
• Email Name: ZTT
• Email Name: JRS
• Media Type: D
• Archive: No

BULLDOZER RIPPING WORK
Task description: Rip Cut Line from Brush Fire
Site: Colowyo Coal Mine Permit Action: MR165 Permit/Job#: C1981019
Seismic:
Area:
PROJECT IDENTIFICATION
Task #: 001 State: Colorado
Date: 11/23/2016 County: Moffat
User: ZTT
Agency or organization name: DRMS
HOURLY EQUIPMENT COST
Basic Machine: Cat D11T - 11U
Ripper Attachment: 3 -Shank Ripper
Cost Breakdown:
Abbreviation: None
Filename: CO 19-001
Horsepower: 850
Shift Basis: 1 per day
Data Source: (CRG)
Utilization %
Ownership Cost/Hour:
$222.81
NA
Operating Cost/Hour:
$218.91
100
Ripper Ownership Cost/Hour:
$18.91
NA
Ripper Operating Cost/Hour:
$10.01
100
Operator Cost/Hour:
$38.89
NA
Total Unit Cost/Hour:
$509.53
Total Fleet Cost/Hour: $509.53
MATERIAL QUANTITIES Selected estimating method: Area
Alternate Methods:
NA Bank Volume:
NA
BCY
1.40 acres Rip Depth (ft):
1.00
Volume: 2,25
Source of estimated quantity: Table 7
Exh. 13B -T-20
HOURLY PRODUCTION
Seismic:
Seismic Velocity:
NA
feet/second
Area:
Average Ripping Depth:
3.51
mph
Average Ripping Width:
9.83
degrees
Average Ripping Length:
300.00
feet
Average Dozer Speed:
88.00
feet
Average Maneuver Time:
0.25
feet
Production per unit area:
1.110
acres/hour
Job Condition Correction Factors
Unadjusted Hourly Unit Production:
1.110
Acres/hr
Site Altitude:
7,500
feet
Altitude Adj:
1.00
(CAT HB)
Job Efficiency:
0.83
(1 shift/day
Net Correction:
0.83
multiplier
Adjusted Hourly Unit Production:
0.92
Acres/hr
Adjusted Hourly Fleet Production:
0.92
Acres/hr
JOB TIME AND COST
4
Fleet size: 1 Grader(s) Total job time: 1.52
Unit cost: $553.002 Per acre Total job cost: $774
NA
BCY or CCY
Hours
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