Fargo-Moorhead Metro Feasibility Appendix G-EX-E-1 February 28, 2011 Cost Estimates-Exhibit E RED RIVER DIVERSION FARGO – MOORHEAD METRO FLOOD RISK MANAGEMENT PROJECT, FEASIBILITY STUDY, PHASE 4 APPENDIX G – COST ESTIMATES EXHIBIT E – PRELIMINARY EARTHWORK ANALYSIS Report for the US Army Corps of Engineers, and the cities of Fargo, ND & Moorhead, MN By: Barr Engineering Co. FINAL – February 28, 2011 TABLE OF CONTENTS G-E1.0 PRELIMINARY EARTHWORK ANALYSIS ................................................... 2 ATTACHMENTS G-E1.0 Preliminary Earthwork Analysis
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Fargo-Moorhead Metro Feasibility Appendix G-EX-E-1
February 28, 2011 Cost Estimates-Exhibit E
RED RIVER DIVERSION
FARGO – MOORHEAD METRO FLOOD RISK
MANAGEMENT PROJECT,
FEASIBILITY STUDY, PHASE 4
APPENDIX G – COST ESTIMATES
EXHIBIT E – PRELIMINARY EARTHWORK ANALYSIS
Report for the US Army Corps of Engineers, and the cities of Fargo, ND &
Project: Fargo-Moorhead Metro Flood Risk Management Project Computed: MRM/ATS/PKN Date 2/28/2011
Subject: Phase 4 Cost Estimate Checked: MW1 Date 2/28/2011
Task: Work Analysis - Earthwork Crews Sheet: 3 of 10
Status: draft
Exhibit G-E1.0 Preliminary Earthwork AnalysisNote 1: For construction, equipment combinatations other than those shown could be configured. Information shown below is for cost estimate purposes only.
Note 3: Instead of D9 dozers, D6 dozers may be preferable because of maneuverability. Assuming D9 dozers is conservative.
Note 4: For Types 3 and 4, larger excavators or shovels could be feasible.
Note 5: Crews and productivities based on conversations with contractors, index values in the 2008 equipment library, RS Means cost data, equipment manufacturer's data, and unit price data
Constraints: (USACE email 6-8-2010)
1.15 Excavation to Haul swell LCY/BCY BCY = bank cubic yards in-situ
Project: Fargo-Moorhead Metro Flood Risk Management Project Computed: MRM Date 7/26/2010
Subject: Phase 3 Cost Estimate Checked: MW1 Date 7/26/2010
Task: Work Analysis - Earthwork - Type 3 Oxidized Brenna Sheet: 7 of 10
Status: draft
Reference: CAT Performance Handbook Edition 40 Note: Information shown below is for cost estimate purposes only.
Hydraulic Excavators
Constraints: Material Type 3 Oxidized Brenna
1.15 Excavation to Haul swell LCY/BCY - USACE email 6-8-2010
2 to 3 California Bearing Ratio (CBR) - Saturated Non-Brenna
Average Bucket Payload = (Heaped Bucket Capacity) x (Bucket Fill Factor)
Bucket Fill Factor (% of heaped bucket capacity)
Material
Fill Factor
Range low end high end
Material
types
Moist Loam or Sandy Clay 100-110% 100 110 A
Sand and Gravel 95-110% 95 110 B
Hard, Tough Clay 80-90% 80 90 C
Rock - Well Blasted 60-75% 60 75
Rock - Poorly Blasted 40-50% 40 50
p. 4-136 table
Job Condition Description
A Easy Digging (unpacked earth, sand, gravel, ditch cleaning etc.) Digging to less than 40% of machine's maximum depth capability.
Swing angle less than 30°. Dump onto spoil pile or truck in excavation. No obstructions. Good operator.
B Medium digging (packed earth, tough dry clay, soil with less than 25% rock content). Depth to 50% of machine's maximum capability.
Swing angle to 60°. Large dump target. Few obstructions
C Medium to hard digging (hard packed soil with up to 50% rock content). Depth to 70% of machine's maximum capability.
Swing angle to 90°. Loading trucks with truck spotted close to excavator.
D Hard digging (shot rock or tough soil with up to 75% rock content). Depth to 90% of machine's maximum capability.
Swing angle to 120°. Shored trench. Small dump target. Working over pipe crew
E Toughest digging (sandstone, caliche, shale, certain limestones, hard frost). Over 90% of machine's maximum depth capability.
Swing over 120°. Loading bucket in man box. Dump into small target requiring maximum excavator reach. People and obstructions in the work area.
Cycle Time Estimating Chart - per job condition
CAT Machine Size Class
Seconds per job condition M322D 323D 324D 328D 329D 336D 345D 365C L 385C
A Min Cycle Time (s) 10 10 11.5 NA 11.5 12.5 12 12 12.5
A Max Cycle Time (s) 13 13 13 NA 14 15 15 15 15.5
B Min Cycle Time (s) 13 13 13 NA 14 15 15 15 15.5
B Max Cycle Time (s) 15.5 15.5 16 NA 16 18 18 20 21
C Min Cycle Time (s) 15.5 15.5 16 NA 16 18 18 22 21
C Max Cycle Time (s) 18.5 18.5 19 NA 19 21 20 26.5 27
D Min Cycle Time (s) 18.5 18.5 19 NA 19 21 20 26.5 27
D Max Cycle Time (s) 20 20 21 NA 22 23.5 23.5 31.5 32.5
E Min Cycle Time (s) 20 20 21 NA 22 23.5 23.5 31.5 32.5
E Max Cycle Time (s) 23 23 24 NA 26 26.5 29 34.5 42
Step 1
Material Fill Factor Range Low End High End
Material Type
Hard,
Tough
Clay 80-90% 80 90p. 4-136
Step 2 Estimate Cycle Time
Machine Class Size 385C
Job Condition B
B Min Cycle Time (s) 15.5 0.26 Min
B Max Cycle Time (s) 21 0.35 Min
p. 4-188
Step 3 Calculate Effective Cycles per Hour
Cycle time (Max from Step 2) 0.26 Min
60 Minute hour
Cycle time cycles/hour
Operator Skill/Efficiency 0.95 (95%) (1) downtime of 30min every 10hrs
Machine Availability 0.95 (95%) (1) downtime of 30min every 10hrs
Gen Operational Efficiency 0.95 (57 min/hr) (1) equivalent downtime of 30min every 10hrs
Effective Cycles per Hour 199 (cycles/hr) (1) total equivalent downtime of 1hr30min every 10hrs;
p. 4-192 (2) effective cycle bracketed by min/max cycle times
Step 4 Calculate Required Bucket Capacity
Nominal Bucket Size 5 cy
Fill Factor 80 %
Bucket Payload Volume= Nominal Bucket Size x Fill Factor
Bucket Payload Volume= 4 cy
Material Density / Loose= 2700 lb/cy
Required Payload = Bucket Payload Volume x Material Density/Loose
Required Payload = 10,800 lb
Effective Cycles per Hour= 199 cycles/hr
Step 5 Calculate Production
Hourly Production Required= Required Payload x Effective Cycles per hour
Hourly Production Required= 2,150,628 lbs/hr 1075 tons/hr
797 LCY/hr
693 BCY/hr
Crew: 1 Hydraulic Excavator (crawler)
1 Dozer (crawler) to maintain load/unload areaReference Comparison:
2010 RS Means 31-23-16.43-5700 - Excavator, 4.5 CY bucket with truck loading, 80% fill factor, crew B-14A, daily output 2720 CY (340 CY/hr for 8 hours) $1.03/LCY or $1.18/BCY (no dozers)
2010 RS Means 31-23-16.43-5720 - Excavator, 6.0 CY bucket with truck loading, 80% fill factor, crew B-14B, daily output 4000 CY (500 CY/hr for 8 hours) $1.33/LCY or $1.53/BCY (no dozers)Note: Larger buckets or other methods could possibly be used, but are not included above.
Project: Fargo-Moorhead Metro Flood Risk Management Project Computed: MRM Date 7/26/2010
Subject: Phase 3 Cost Estimate Checked: MW1 Date 7/26/2010
Task: Work Analysis - Earthwork - Type 4 Brenna Sheet: 9 of 10
Status: draft
Reference: CAT Performance Handbook Edition 40 Note: Information shown below is for cost estimate purposes only.
Hydraulic Excavators
Constraints: Material Type 4 Brenna
1.15 Excavation to Haul swell LCY/BCY - USACE email 6-8-2010
2 to 3 California Bearing Ratio (CBR) - Oxidized Brenna
Average Bucket Payload = (Heaped Bucket Capacity) x (Bucket Fill Factor)
Bucket Fill Factor (% of heaped bucket capacity)
Material
Fill Factor
Range low end high end
Material
types
Moist Loam or Sandy Clay 100-110% 100 110 A
Sand and Gravel 95-110% 95 110 B
Hard, Tough Clay 80-90% 80 90 C
Rock - Well Blasted 60-75% 60 75
Rock - Poorly Blasted 40-50% 40 50
p. 4-136 table
Job Condition Description
A Easy Digging (unpacked earth, sand, gravel, ditch cleaning etc.) Digging to less than 40% of machine's maximum depth capability.
Swing angle less than 30°. Dump onto spoil pile or truck in excavation. No obstructions. Good operator.
B Medium digging (packed earth, tough dry clay, soil with less than 25% rock content). Depth to 50% of machine's maximum capability.
Swing angle to 60°. Large dump target. Few obstructions
C Medium to hard digging (hard packed soil with up to 50% rock content). Depth to 70% of machine's maximum capability.
Swing angle to 90°. Loading trucks with truck spotted close to excavator.
D Hard digging (shot rock or tough soil with up to 75% rock content). Depth to 90% of machine's maximum capability.
Swing angle to 120°. Shored trench. Small dump target. Working over pipe crew
E Toughest digging (sandstone, caliche, shale, certain limestones, hard frost). Over 90% of machine's maximum depth capability.
Swing over 120°. Loading bucket in man box. Dump into small target requiring maximum excavator reach. People and obstructions in the work area.
Cycle Time Estimating Chart - per job condition
CAT Machine Size Class
Seconds per job condition M322D 323D 324D 328D 329D 336D 345D 365C L 385C
A Min Cycle Time (s) 10 10 11.5 NA 11.5 12.5 12 12 12.5
A Max Cycle Time (s) 13 13 13 NA 14 15 15 15 15.5
B Min Cycle Time (s) 13 13 13 NA 14 15 15 15 15.5
B Max Cycle Time (s) 15.5 15.5 16 NA 16 18 18 20 21
C Min Cycle Time (s) 15.5 15.5 16 NA 16 18 18 22 21
C Max Cycle Time (s) 18.5 18.5 19 NA 19 21 20 26.5 27
D Min Cycle Time (s) 18.5 18.5 19 NA 19 21 20 26.5 27
D Max Cycle Time (s) 20 20 21 NA 22 23.5 23.5 31.5 32.5
E Min Cycle Time (s) 20 20 21 NA 22 23.5 23.5 31.5 32.5
E Max Cycle Time (s) 23 23 24 NA 26 26.5 29 34.5 42
Step 1
Material Fill Factor Range Low End High End
Material Type
Hard,
Tough
Clay 80-90% 80 90p. 4-136
Step 2 Estimate Cycle Time
Machine Class Size 385C
Job Condition B
B Min Cycle Time (s) 15.5 0.26 Min
B Max Cycle Time (s) 21 0.35 Min
p. 4-188
Step 3 Calculate Effective Cycles per Hour
Cycle time (Max from Step 2) 0.30 Min
60 Minute hour
Cycle time cycles/hour
Operator Skill/Efficiency 0.95 (95%) (1) downtime of 30min every 10hrs
Machine Availability 0.95 (95%) (1) downtime of 30min every 10hrs
Gen Operational Efficiency 0.80 (48 min/hr) (1) equivalent downtime of 120min every 10hrs
Effective Cycles per Hour 142 (cycles/hr) (1) total equivalent downtime of 3hr every 10hrs;
p. 4-192 (2) effective cycle above max. for Job Condition B
Step 4 Calculate Required Bucket Capacity
Nominal Bucket Size 5 cy
Fill Factor 80 %
Bucket Payload Volume= Nominal Bucket Size x Fill Factor
Bucket Payload Volume= 4 cy
Material Density / Loose= 2700 lb/cy
Required Payload = Bucket Payload Volume x Material Density/Loose
Required Payload = 10,800 lb
Effective Cycles per Hour= 142 cycles/hr
Step 5 Calculate Production
Hourly Production Required= Required Payload x Effective Cycles per hour
Hourly Production Required= 1,538,157 lbs/hr 769 tons/hr
570 LCY/hr
495 BCY/hr
Crew: 1 Hydraulic Excavator (crawler)
1 Dozer (crawler) to maintain load/unload area
Assume excavator, trucks can operate on Type 3 material to excavate the Type 4
Reference Comparison:
2010 RS Means 31-23-16.43-5700 - Excavator, 4.5 CY bucket with truck loading, 80% fill factor, crew B-14A, daily output 2720 CY (340 CY/hr for 8 hours) $1.03/LCY or $1.18/BCY (no dozers)
2010 RS Means 31-23-16.43-5720 - Excavator, 6.0 CY bucket with truck loading, 80% fill factor, crew B-14B, daily output 4000 CY (500 CY/hr for 8 hours) $1.33/LCY or $1.53/BCY (no dozers)Note: Larger buckets or other methods could possibly be used, but are not included above.