RED RIVER DIVERSION FARGO MOORHEAD METRO … V_AppendixG/Exhibits/A… · RED RIVER DIVERSION FARGO ... TRACTOR, CRAWLER (DOZER), 240 HP, LOW GROUND ... 627G CAT Wheel Tractor-Scraper

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

Fargo-Moorhead Metro Feasibility Appendix G-EX-E-2

February 28, 2011 Cost Estimates-Exhibit E

APPENDIX G

COST ESTIMATES

EXHIBIT E – PRELIMINARY EARTHWORK ANALYSIS

G-E1.0 PRELIMINARY EARTHWORK ANALYSIS

Attachment G-E1.0 of this Exhibit E presents the preliminary earthwork analysis used to

develop crews and productivities in the MII cost estimates, including the following

information, computations and assumptions:

• Manitoba Floodway Expansion Images – Excavation & Haul

• Work Analysis – City of Fargo Images – Borrow Pits

• Work Analysis – Earthwork Crews

• Work Analysis – Earthwork – Topsoil Stripping and Stockpiling

• Work Analysis – Earthwork – Type 1 Non-Saturated Non-Brenna

• Work Analysis – Earthwork – Type 2 Saturated Non-Brenna

• Work Analysis – Earthwork – Type 3 Oxidized Brenna

• Work Analysis – Earthwork – Type 4 Brenna

Exhibit_G-E1_0_Preliminary_Earthwork_Analysis Page 1

Job Number: 34-091-004.300.500

Barr Engineering Company

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 - Manitoba Floodway Expansion Images - Excavation & Haul Sheet: 1 of 10

Status: draft

Images courtesy of Manitoba Floodway Authority - Floodway Expansion 2005-2007

http://www.floodwayauthority.mb.ca/construction_status.html#

Shallow material excavated with scraper fleet

Working on stronger material to excavate weaker underlying material Articulated Dump Truck -CAT D400E, 28.6 cy heaped max capacity

P:\Mpls\34 ND\09\34091004 Fargo Moorhead Metropolitan Feas. Study\WorkFiles\Project Data\Phase3\700_Cost_Est\Report_Exhibits\Exhibit_G-E1_0_Preliminary_Earthwork_Analysis Page 1


Job Number: 34-091-004.300.500




Task: Work Analysis - City of Fargo Images Sheet: 2 of 10

Status: draft

Images courtesy of Nathan Boerboom of City of Fargo

2010 borrow pit (approx. 20 feet depth) for temporary levee construction.


Exhibit_G-E1_0_Preliminary_Earthwork_Analysis.xls Page 1

Job Number: 34-091-004.300.500


Project: Fargo-Moorhead Metro Flood Risk Management Project Computed: MRM/ATS/PKN 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

1.00 Excavation to Ordinary Compacted Spoil ECY/BCY LCY = loose cubic yards

1.08 Excavation to Top Dressed Spoil Pile ECY/BCY ECY = embankment cubic yards

0.85 Excavation to Levee/Structural Fill ECY/BCY

Table: Crew Summary

SCRAPER, TANDEM

POWERED,

STANDARD

LOADING, 20 CY, 24

TON, 9.1' CUT

WIDTH, 4X4, PUSH-

PULL; MODEL 627-G

PP (PUSH-PULL)

HYDRAULIC

EXCAVATOR,

CRAWLER, 190,500

LB, 6.00 CY BUCKET,

27.83' MAX

DIGGING DEPTH ;

Model 385BL CAT

TRUCK OFF-

HIGHWAY,

ARTICULATED

FRAME, 29 CY, 40

TON, 6X6 REAR

DUMP; MODEL

400D

TRUCK OFF-

HIGHWAY,

ARTICULATED

FRAME, 18 CY, 25

TON, 6X6 REAR

DUMP; MODEL

250D

TRACTOR,

CRAWLER (DOZER),

341-440 HP,

POWERSHIFT, W/

UNIVERSAL BLADE;

MODEL D-9R

TRACTOR,

CRAWLER

(DOZER), 240 HP,

LOW GROUND

PRESSURE,

W/7.70 CY

STRAIGHT BLADE

(ADD

ATTACHMENTS);

MODEL D-7RIILGP

LOADER/BACKH

OE, WHEEL, 1.30

CY FRONT END

BUCKET, 24" DIP,

7.1 CF, 21.5'

DIGGING DEPTH,

4X4; MODEL

217S (4WS)

GRADER,

MOTOR,

ARTICULATED,

6X4, 12' BLADE

W/17 TEETH

SCARIFIERS

TRACTOR,

AGRICULTURAL,

CRAWLER

RUBBER TRACK

267 HP; MODEL

CH 65E

TRACTOR

ATTACHMENTS,

POWER

HARROW, 160"

WIDE ROTERRA

ROTARY HOE,

MODEL 400-35

ROLLER,

VIBRATORY,

TOWED, SINGLE

DRUM,

SHEEPSFOOT, 25.5

TON, 72" WIDE

(ADD 180 HP

TOWING UNIT)

LOADER, FRONT

END, WHEEL,

ARTICULATED,

2.75 CY (2.1 M3)

BUCKET, 4X4

Laborers (semi-

skilled)

Equipment

Operators

Medium

Strip and Stockpile Topsoil - Channel

1650 BCY/HR Topsoil - Strip 5 1 1 6

750 BCY/HR Topsoil - Stockpile 2 1 2

Strip and Stockpile Topsoil - Spoil Berm

1500 BCY/HR Topsoil - Strip and Stockpile 5 2 1 1 8

Excavation and Embankment - Channel - Type 1 Non-Saturated Non-Brenna

1400 BCY/HR

Earthwork - Non-Saturated Non-Brenna -

Excavate and Haul 5 1 0.5 0.5 1 7

1400 BCY/HR


Spoil 4 0.5 1 4.5

1000 BCY/HR


Semicompact, Manage Moisture Content 1 2 1 1 1 3

120 BCY/HR (LPP)


Levee Embankment 2 1 3 1 2 1 6

Excavation and Embankment - Channel - Type 2 Saturated Non-Brenna

1050 BCY/HR

Earthwork - Saturated Non-Brenna -

Excavate and Haul 5 1 0.5 0.5 1 7

1400 BCY/HR Earthwork - Saturated Non-Brenna - Spoil 4 0.5 1 4.5

1000 BCY/HR

Earthwork - Saturated Non-Brenna -

Semicompact, Manage Moisture Content 1 2 1 1 1 3

120 BCY/HR (LPP)

Earthwork - Saturated Non-Brenna - Levee

Embankment 2 1 3 1 2 1 6

Excavation and Embankment - Channel - Type 3 Oxidized Brenna

690 BCY/HR Earthwork - Oxidized Brenna - Excavate 1 2 1 3

690 BCY/HR Earthwork - Oxidized Brenna - Haul 3.5 1 1 4.5

1400 BCY/HR Earthwork - Oxidized Brenna - Spoil 4 0.5 1 4.5

1000 BCY/HR

Earthwork - Oxidized Brenna - Semicompact

and Manage Moisture Content 1 2 1 1 1 3

Excavation and Embankment - Channel - Type 4 Brenna

500 BCY/HR Earthwork - Brenna - Excavate 1 2.5 1 3.5

500 BCY/HR Earthwork - Brenna - Haul 3.1 1 1 4.1

1400 BCY/HR Earthwork - Brenna - Spoil 4 0.5 1 4.5

1000 BCY/HR

Earthwork - Brenna - Semicompact and

Manage Moisture Content 1 2 1 1 1 3

Excavation and Embankment - Channel -

varies Earthwork - Haul 1 1 1

Topsoil Placement - Channel

1650 BCY/HR Topsoil - Install from Stockpile 5 3 1 1 1 2 10

Topsoil Placement - Berms

1500 BCY/HR Topsoil - Install from Stockpile 5 2 1 1 1 2 9

P:\Mpls\34 ND\09\34091004 Fargo Moorhead Metropolitan Feas. Study\WorkFiles\_Phase4\100 Cost Estimates\Work Analysis\Exhibit_G-E1_0_Preliminary_Earthwork_Analysis.xls Page 1


Job Number: 34-091-004.300.500




Task: Work Analysis - Earthwork - Topsoil Stripping and Stockpiling Sheet: 4 of 10

Status: draft

Reference: CAT Performance Handbook Edition 40 Note: Information shown below is for cost estimate purposes only.

Wheel Tractor-Scrapers p.8-4

Constraints: Material - Existing Topsoil

1.25 Excavation to Haul swell LCY/BCY, CERM 11th Ed.

1,800 LF wide corridor to strip, assume stockpiling at edges. level 0% grade

Step 1 - Equipment Model Characteristics

627G CAT Wheel Tractor-Scraper Model w/ D8 or D9 push-load

627G-PP CAT Wheel Tractor-Scraper Model, Tandem Powered Push-Pull

22 CY Scraper Capacity (heaped)

15.7 CY Scraper Capacity (struck)

86,957 LBS Operating Weight (empty) p. 8-30

139,757 LBS Operating Weight (full) p. 8-30

0.4 MIN. Load Time for push-load w/ dozer

0.9 MIN. Load Time for scaper push-pull

0.6 MIN. Maneuver and Spread or Maneuver and Dump

23 MPH max at 5%, full load p. 8-18


Step 2 - Travel Charts - Wheel Tractor-Scrapers


750 LF Distance One Way

4.0 % Typ. Rolling Resistance, rutted dirt roadway 2" tire penetration, no water, little maintenance, p. 27-1

0.0 % Grade existing grade (assumed)

4.0 % Total Resistance

0.6 MIN. on-way travel time (loaded), p. 8-32



0.0 % Grade existing grade (assumed)


0.5 MIN. on-way travel time (empty), p. 8-33


2.6 MIN. TOTAL travel time per cycle (unfactored)

Step 3 Calculate Effective Cycles per Hour

Cycle time (Max from Step 2) 2.60 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 (55 min/hr) (1) equivalent downtime of 30min every 10hrs

Effective Cycles per Hour 20 (cycles/hr) (1) total equivalent downtime of 1hr30min every 10hrs

Step 4 Calculate Production

0.95 Assume loading as % of heaped 2:1 capacity

20.9 LCY volume per load (assumed)

413.5 LCY per hour productivity (single unit)

330.8 BCY per hour productivity (single unit)

Crew 5 Scrapers (push-pull)

1 D9 Dozer (maintenance of haul areas, small amount of windrowing)

1654 BCY per hour total productivity (crew)

Typical diversion corridor shown below (finish grade contours shown)

23



Job Number: 34-091-004.300.500




Task: Work Analysis - Earthwork - Type 1 Non-Saturated Non-Brenna Sheet: 5 of 10

Status: draft



Constraints: Material Type 1 Non-Saturated Non-Brenna

1.15 Assumed Excavation to Haul swell LCY/BCY - USACE email 6-8-2010

0.87 Calculate Load Factor (L)

5 to 6 Estimated California Bearing Ratio (CBR)

Equipment Model Characteristics
















5.0 % Grade (assumed max., likely conservative given shallow depths of Type 1 material)





0.0 % Grade







60 Minute hour




Gen Operational Efficiency 0.92 (55 min/hr) (1) equivalent downtime of 50 min every 10hrs








1 D9 Dozer (maintenance of haul areas, occasional push)

0.5 Dozer (maintenance of haul areas, occasional push)

0.5 Grader (maintenance of haul areas)


Route shown below is conservative, higher productivity could be assumed for shorter routes


19



Job Number: 34-091-004.300.500




Task: Work Analysis - Earthwork - Type 2 Saturated Non-Brenna Sheet: 6 of 10

Status: draft



Constraints: Material Type 2 Saturated Non-Brenna




Type 2 material estimated depth 20', scrapers assumed feasible to 10'-15' depths or lower.

Equipment Model Characteristics















saturated material 8.0 % Typ. Rolling Resistance, rutted dirt roadway, soft under travel, 4" tire penetration, no maintenance, p. 27-1

5.0 % Grade (assumed max., likely conservative given shallow depths of Type 1 material)




saturated material 8.0 % Typ. Rolling Resistance, rutted dirt roadway, soft under travel, 4" tire penetration, no maintenance, p. 27-1

0.0 % Grade







60 Minute hour




Gen Operational Efficiency 0.92 (55 min/hr) (1) equivalent downtime of 50 min every 10hrs








1 D9 Dozer (maintenance of haul areas, occasional push)

1 LGP Dozer (maintenance of haul areas)

0.25 Grader (maintenance of haul areas)


Route shown below is conservative, higher productivity could be assumed for shorter routes


15



Job Number: 34-091-004.300.500




Task: Work Analysis - Earthwork - Type 3 Oxidized Brenna Sheet: 7 of 10

Status: draft


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



60 Minute hour





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


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.

232



Job Number: 34-091-004.300.500




Task: Work Analysis - Earthwork - Type 3 Oxidized Brenna Sheet: 8 of 10

Status: draft

Note: Information shown below is for cost estimate purposes only.

Reference: John Deere manufacturer's literature for D-SERIES II ADTs (Articulated Dump Trucks)

Constraints: Material Type 3 Oxidized Brenna




Model: John Deere 400D Articulated Dump Truck

29.4 CY Capacity (heaped 2:1)

22.1 CY Capacity (struck)

22.7 psi Max Ground Pressure (loaded, middle axle)

147,530 lbs total operating weight (loaded)

5 mph at 10% grade and total operating weight

8 mph at 5% grade and total operating weight

15 mph unloaded

Haul Truck Productivity:

Distance Slope Speed Time Time Activity Notes

LF % MPH S MIN

N/A N/A 0 120 2.0 load

N/A N/A 0 6 0.1 start

135 < 5 14 7 0.1 level loaded

460 5 MAX 9 35 0.6 uphill loaded

175 < 5 14 9 0.1 level loaded

250 < 5 14 12 0.2 level loaded

N/A N/A 0 10 0.2 stop

N/A N/A 0 30 0.5 unload

N/A N/A 0 30 0.5 bed scrape from loader (2 min. every 4 trips)


700 -6 20 24 0.4 downhill unloaded return

150 < 5 5 10 0.2 return zone

N/A N/A 0 10 0.2 stop

5.2 total time per round trip (minutes)

11.5 loads per hour (unfactored)

Factors: 0.70 Assume loading as % of heaped 2:1 capacity

21 LCY per load per truck assumed (% * heaped 2:1 capacity)

Machine Availability 1.00 ( 100%) assume trucks are available as needed

Gen Operational Efficiency 0.95 (57 min/hr)

11.0 loads per hour

226 LCY/hour per truck

797 LCY/hour excavator productivity match (from previous page)

693 BCY/hour (from previous page)

Equipment: 3.5 trucks required

1 small backhoe required (to periodically scrape beds)

0.5 grader required (to manage the haul roads/rutting)


Job Number: 34-091-004.300.500




Task: Work Analysis - Earthwork - Type 4 Brenna Sheet: 9 of 10

Status: draft


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



60 Minute hour





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


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.

197



Job Number: 34-091-004.300.500




Task: Work Analysis - Earthwork - Type 4 Brenna Sheet: 10 of 10

Status: draft

Note: Information shown below is for cost estimate purposes only.

Reference: John Deere manufacturer's literature for D-SERIES II ADTs (Articulated Dump Trucks)

Constraints: Material Type 4 Brenna




Model: John Deere 400D Articulated Dump Truck

29.4 CY Capacity (heaped 2:1)

22.1 CY Capacity (struck)

22.7 psi Max Ground Pressure (loaded, middle axle)

147,530 lbs total operating weight (loaded)

5 mph at 10% grade and max operating weight

8 mph at 5% grade and max operating weight

15 mph unloaded

Haul Truck Productivity:

Distance Slope Speed Time Time Activity Notes

LF % MPH S MIN

N/A N/A 0 120 2.0 load


135 < 5 10 9 0.2 level loaded

460 5 MAX 9 35 0.6 uphill loaded

175 < 5 10 12 0.2 level loaded

250 < 5 10 17 0.3 level loaded

N/A N/A 0 10 0.2 stop

N/A N/A 0 30 0.5 unload

N/A N/A 0 60 1.0 bed scrape from loader (2 min. every 2 trips)


700 -6 15 32 0.5 downhill unloaded return

150 < 5 5 10 0.2 return zone

N/A N/A 0 10 0.2 stop

6.1 total time per round trip (minutes)

9.8 loads per hour

Factors: 0.70 Assume loading as % of heaped 2:1 capacity

21 LCY per load per truck assumed (% * heaped 2:1 capacity)

Machine Availability 1.00 ( 100%) assume trucks are available as needed

Gen Operational Efficiency 0.91 (55 min/hr) (saturated clay)

8.9 loads per hour

184 LCY/hour per truck

570 LCY/hour excavator productivity match (from previous page)

495 BCY/hour (from previous page)

Equipment: 3.1 trucks required

1 small backhoe required (to periodically scrape beds)

0.5 grader required (to manage the haul roads/rutting)

assume trucks are operating on Type 3 material


Documents

RED RIVER DIVERSION FARGO MOORHEAD METRO … V_AppendixG/Exhibits/A… · RED RIVER DIVERSION FARGO ... TRACTOR, CRAWLER (DOZER), 240 HP, LOW GROUND ... 627G CAT Wheel Tractor-Scraper