2020-05-26_REVISION - C1981028 ‎(15)‎

• Permit No: C1981028
• IBM Index Class Name: Revision
• Doc Date: 5/26/2020
• Doc Name Note: Findings & Cost Estimate
• Doc Name: Proposed Decision and Findings of Compliance
• From: DRMS
• To: Coors Energy Company
• Type & Sequence: SL10
• Email Name: JHB
• Email Name: THM
• Media Type: D
• Archive: No

MOTOR GRADER WORK
Task description: Final Grade Long -Term Spoil Area
Site: Keenesburg Strip Mine Permit Action: SL 10 remaining
PROJECT IDENTIFICATION
Task #: A03 State: Colorado
Date: 5/20/2020 County: Weld
User: JHB
Agency or organization name: DRMS
HOURLY EQUIPMENT COST
Basic Machine: CAT 14M
Ripper Attachment:
Permit/Job#: C1981028
Abbreviation: None
Filename: C28A03
Horsepower: 259
Shift Basis: 1 per day
Data Source: (CRG)
Cost Breakdown:
1.50
mph
Selected Application:
Finish grading (0-2.5 mph) - 1.5
Utilization %
Ownership Cost/Hour:
$64.10
NA
Operating Cost/flour:
$56.17
100
Ripper Ownership Cost/Hour:
$0.00
NA
Ripper Operating Cost/Hour:
$0.00
Unadjusted Hourly Unit Production:
Operator Cost/flour:
$45.39
NA
Total Unit Cost/Hour:
$165.66
Source
Total Fleet Cost/Hour: $165.66
MATERIAL QUANTITIES
Total Area to be graded or ripped:
Source of estimated acreage:
HOURLY PRODUCTION
42.94
2018 ARR
acres
Average Grader Speed:
1.50
mph
Selected Application:
Finish grading (0-2.5 mph) - 1.5
Selected Blade Angle:
30
degrees
Effective Blade Length:
12.10
feet
Width of blade overlap per pass:
2.00
feet
Net grading or ripping width per pass:
10.10
feet
Unadjusted Hourly Unit Production:
1.8364
acres/hour
Job Condition Correction Factors
Site Altitude: 4000 feet
Source
Altitude Adj: 1.00 (CAT HB)
Job Efficiency: 0.90 (1sh/d, fay.)
Net Correction: 0.9000 multiplier
Adjusted Hourly Unit Production:
1.6527
acres/Hour
Adjusted Hourly Fleet Production:
1.6527
acres/Hour
JOB TIME AND COST
Fleet size: 1 Grader(s)
Total job time: 25.98 Hours
Unit cost: $100.23 per acre Total job cost: $4,304