_PERMIT FILE - M2016010 ‎(2)‎

• Permit No: M2016010
• IBM Index Class Name: Permit File
• Doc Name: Adequacy Review Response #3
• From: Transit Mix Concrete Co.
• To: DRMS
• Email Name: AME
• Media Type: D
• Archive: No

Hitch Rack Ranch Phase III Surety Calculation Details
Project: Hitch Rack Ranch
Date: 07/05/16
Prepared by: Norwest Corporation
PRODUCTIVITY AND HOURS REQUIRED FOR LOADER USE
Earthmoving Activity:
Plant Growth Material.
Approximately 295,418 Icy of material to be load for hauling.
Characterization of Loader Use(type, size, etc.):
Cat 992 Wheeled Loader w/16 yd3 bucket
Description of Loader Use (origin, destination, grade, haul distance, etc.):
Assume average truck loading cycle time=0.70 minutes, heaped bucket capacity of 16 LCY, 95%fill
factor,and 83%efficiency factor.
Hourly Production= 1,081 LCY/hr @ 295,418 LCY=273 Hours
Productivity Calculations:
Cycle Time= Omin + Omin + 0.7 min = _ min
haul time(loaded) return time(empty) basic cycle time
Net Bucket Capacity = 16 LCY x 0.95 = LCY
heaped bucket capacity bucket fill factor*
Hourly Production _ LCY / _ min x 0.83 x _ min/hr
net bucket capacity cycle time efficiency factor
1081 LCY/hr
Hours Required = 280,497 LCY / - LCY/hr = __ hr
volume to be moved hourly production
*See loader section of equipment manual.
Data Source(s):CAT Handbook Edition 43
Printed 9/26/2016 APPENDIX L-1 23