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 RIPPING WORK
Task description: —Rip 29,4581 of Collom Haul Road
Site: Colowyo Coal Mine Permit Action: 13C Permit/Job#: C 1981019
PROJECT IDENTIFICATION
Task #: 003 State: Colorado
Date: 3/15/2017 County: Moffat
User: ZTT
Agency or organization name: DRMS
HOURLY EQUIPMENT COST
Basic Machine: OBSOLETE- Cat DI IR -
11SU
Ripper Attachment: l -Shank Ripper
Abbreviation: None
Filename: C019-003
Horsepower:
850
Shift Basis:
1 2er da
Data Source:
(CRG)
Cost Breakdown:
feet/second
3.00
mph
7.94
Utilization %
Ownership Cost/Hour:
$220.12
NA
Operating Cost/Hour:
$235.69
100
Ripper Ownership Cost/Hour:
$21.79
NA
Ripper Operating Cost/Hour:
$11.30
100
Operator Cost/Hour:
$41.85
NA
Total Unit Cost/Hour:
$530.75
Total Fleet Cost/Hour:
MATERIAL QUANTITIES
Alternate Methods:
$12061.49
Selected estimating method:
Seismic: NA Bank Volume: NA
Area: 18.90 acres Rip Depth (ft): 1.50
Source of estimated quantity: Table 7 Exh, 13B -T-20
HOURLY PRODUCTION
Seismic:
Area:
Seismic Velocity:
Average Ripping Depth:
Average Ripping Width:
Average Ripping Length:
Average Dozer Speed:
Average Maneuver Time:
Production per unit area:
Job Condition Correction Factors
Unadjusted Hourly Unit Production:
Site Altitude:
Altitude Adj:
Job Efficiency:
Net Correction:
Area
BCY NA
Volume. 45,738 BCY or CCY
NA
feet/second
3.00
mph
7.94
degrees
300.00
feet
88.00
feet
0.25
feet
0.897
acres/hour
0.897
Acres/hr
Adjusted Hourly Unit Production:
Adjusted Hourly Fleet Production:
JOB TIME AND COST
Fleet size: 2 Grader(s)
7,500
1.00
0.83
0.83
0.74
1 An
Total job time:
feet
(CAT HB)
(1 shift/day)
multiplier
Acres/hr
Acres/hr
12.70 Hours
Unit cost: $713.149 Per acre Total job cost: $13,478