_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
WORKSHEET 10
PRODUCTIVITY AND HOURS REQUIRED FOR LOADER USE
Earthmoving Activity:
Stockpiles.
Approximately 99,554 Icy of material to be loaded 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.):
DOGM Protected Worksheet did not allow for data input into "Bucket Fill Factor" Cell.This
Sheet was created.
Assume average truck loading cycle time=0.60 minutes, heaped bucket capacity of 16 LCY,
95%fill factor,and 83%efficiency factor.
Hourly Production= 1,081 LCY/hr @ 99,554 LCY=92 Hours
Productivity Calculations:
Cycle Time= �0 min + min + 0.6 min = =____ min
haul time (loaded) return time (empty) basic cycle time
Net Bucket Capacity= 16 LCY x M 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 = 99,554 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 13