2017-08-14_GENERAL DOCUMENTS - C1981028

• Permit No: C1981028
• IBM Index Class Name: General Documents
• Doc Date: 8/14/2017
• Doc Name Note: RN-7‎(Findings & Cost Estimate)‎
• From: DRMS
• To: Coors Energy
• Permit Index Doc Type: Findings
• Email Name: RAR
• Email Name: DIH
• Email Name: MPB
• Media Type: D
• Archive: No

MOTOR GRADER WORK
Task description: Final grade 49 acres within long term spoil area
Site: Keenesburg Strip Mine Permit Action: RN7 Permit/Job#: C1981028
PROJECT IDENTIFICATIOIS
Task #: A03
Date: 7/19/2017
User: RAR
State: Colorado
County: Weld
Agency or organization name: DRMS
HOURLY EQUIPMENT COST
Basic Machine: CAT 14M
Ripper Attachment:
Abbreviation: None
Filename: A03
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:
$54.68
NA
Operating Cost/Hour:
$46.99
100
Ripper Ownership Cost/Hour:
$0.00
NA
Ripper Operating Cost/Hour:
$0.00
Unadjusted Hourly Unit Production:
Operator Cost/Hour:
$38.16
NA
Total Unit Cost/Hour:
$139.83
Source
Total Fleet Cost/Hour: $139.83
MATERIAL QUANTITIES
Total Area to be graded or ripped:
Source of estimated acreage:
HOURLY PRODUCTION
49.00
2010 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:
29.65 Hours
Unit cost: $84.61 per acre
Total job cost:
$4,146