2012-09-12_REVISION - C1994082

• Permit No: C1994082
• IBM Index Class Name: Revision
• Doc Date: 9/12/2012
• Doc Name: Cost Estimate
• From: DRMS
• To: File
• Type & Sequence: SL4
• Email Name: SLB
• Email Name: SB1
• Media Type: D
• Archive: No

Yoast Mine C1994082 SL -4 Page 21 of 90
BULLDOZER RIPPING WORK
Task description: Rip Final Regraded Areas
Permit Action: Partial Phase I Bond
Site: Yoast Mine Release SL -04 Permit /Job #: C1994082
PROJECT IDENTIFICATION
Task #: 014 State: Colorado
Date: 9/11/2012 County: Routt
User: SLB
Agency or organization name: DRMS
HOURLY EQUIPMENT COST
Basic Machine: Cat D1 1R - 11U
Ripper Attachment: 3 -Shank Ripper
Cost Breakdown
Abbreviation: None
Filename: C082 -014
Horsepower: 850
Shift Basis: 1 per day
Data Source: (CRG)
Utilization %
Ownership Cost/Hour:
$147.46
NA
Operating Cost/Hour:
$274.62
100
Ripper Operating Cost/Hour:
$12.68
100
Operator Cost/Hour:
$38.49
NA
Total Unit Cost/Hour:
$473.25
Total Fleet Cost/Hour:
$946.50
MATERIAL QUANTITIES
Selected estimating
method: Area
Alternate Methods:
Seismic: NA Bank Volume:
NA
BCY NA
Area: 20.00 acres Rip Depth (ft): 3.50
Volume: 112,933 BCY or CCY
Source of estimated quantity:
Division Estimate
HOURLY PRODUCTION
Seismic:
Seismic Velocity:
NA
feet/second
Area:
Average Ripping Depth:
3.51
mph
Average Ripping Width:
9.83
degrees
Average Ripping Length:
400.00
feet
Average Dozer Speed:
88.00
feet
Average Maneuver Time:
0.25
feet
Production per unit area:
1.129
acres/hour
Job Condition Correction Factors
Unadjusted Hourly Unit Production:
1.129
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:
0.94
Acres/hr
Adjusted Hourly Fleet Production:
1.87
Acres/hr
JOB TIME AND COST
Fleet size: 2 Grader(s)
Total job time:
10.67 Hours