legend - der.wa.gov.au

1550

0mE

1550

0mE

1600

0mE

1600

0mE

1650

0mE

1650

0mE

14000mN 14000mN

14500mN 14500mN

F1/F3 RESIDUEDISPOSAL FACILITY

Q:\P

E801

-000

48 B

oddi

ngto

n\AC

AD\0

0-En

gine

erin

g D

raw

ings

\02-

Prel

imin

ary

Dra

win

gs\A

1012

\801

-048

-A10

12-1

08

A

REF

EREN

CES

SHEE

T SI

ZE A

3

REV

ISIO

NS

SCALEREV

STATUSKNIGHT PIESOLD DRAWING NUMBER

REV DRNDATE DESCRIPTION CKD APP1 2 3 4 5 6 7 8 9 10410

287

1 2 3 4 5 6 7 8 9 10

A

B

C

D

E

F

G

A

B

C

D

E

F

G

NOTICE: This drawing has not been publicly disclosed and is the sole property ofKnight Piesold Pty Ltd and is lent to the borrower for their confidential use only, and inconsideration of the loan of this drawing, the borrower promises and agrees to return itupon request and agrees that it shall not be reproduced, copied, lent or otherwisedisposed of directly or indirectly to any other person or entity, nor used for any purposeother than for which it is furnished.

DESIGN CLIENT APP

DATE CHECKED DESIGNED APPROVED CLIENT APP'D

DRAWING No. DRAWING TITLE

THIRD ANGLE

PROJECTION

NEWMONT DRAWING NUMBER

NASIA PACIFIC

BODDINGTON GOLD MINEF1-F3 RESIDUE DISPOSAL AREASTAGE 12 EMBANKMENT BUTTRESS DRAINAGESADDLE DAM 8 BUTTRESS DRAINAGE LAYOUT

801-048-A1012-108A

IFR1:5,000

A 03/12/2018 ISSUED FOR REVIEW SS RST RST DJTM801-048-A1012-301 TYPICAL SECTIONS & DETAILS

11147-666-91C-0435

A301

EXISTING SUMP

EXISTING SUMP

EXISTING SUMP

A301

SADDLE DAM 8

R4 RESIDUEDISPOSAL FACILITY

SADDLE DAM 9

TOE DRAIN TOWER

NOTES:

1. 1m CONTOUR INTERVAL SHOWN. TOPOGRAPHY DERIVED FROMSITE SURVEY DATA.

2. THE CONTRACTOR IS NOT TO DAMAGE ANY INFRASTRUCTUREDURING THE CONTRACT EXECUTION.

3. THE CONTRACTOR IS TO REPAIR ANY DAMAGE TOINFRASTRUCTURE AT IT'S OWN COST.

4. THE EXISTING COMPRESSED AIRLINE IS TO BE RELOCATED BYOTHERS PRIOR TO ANY WORKS.

5. EMBANKMENT TOE DRAIN TO BE INTERCONNECTED TO BUTTRESSTOE DRAIN AT 150 M INTERVALS.

6. FINAL DRAIN ALIGNMENT TO BE CONFIRMED BY THE PRINCIPALPRIOR TO CONSTRUCTION.

LEGEND:

EXISTING CLEARED EXTENT

EXISTING ROAD

EXISTING WATER SOURCE

BUTTRESS TOE DRAIN

EMBANKMENT TOE DRAIN

BUTTRESS TOE DRAIN/PERIMETER DRAIN INTERCONNECTION

PERIMETER DRAIN

EXISTING COMPRESSED AIRLINE (SEE NOTE 4)

1500

0mE

1500

0mE

1550

0mE

1550

0mE

1600

0mE

1600

0mE

13500mN 13500mN

14000mN 14000mN

14500mN 14500mN

F1/F3 RESIDUEDISPOSAL FACILITY

Q:\P

E801

-000

48 B

oddi

ngto

n\AC

AD\0

0-En

gine

erin

g D

raw

ings

\02-

Prel

imin

ary

Dra

win

gs\A

1012

\801

-048

-A10

12-1

09

A

REF

EREN

CES

SHEE

T SI

ZE A

3

REV

ISIO

NS

SCALEREV



287

1 2 3 4 5 6 7 8 9 10

A

B

C

D

E

F

G

A

B

C

D

E

F

G


DESIGN CLIENT APP



THIRD ANGLE

PROJECTION


NASIA PACIFIC

BODDINGTON GOLD MINEF1-F3 RESIDUE DISPOSAL AREASTAGE 12 EMBANKMENT BUTTRESS DRAINAGESADDLE DAM 9 BUTTRESS DRAINAGE LAYOUT

801-048-A1012-109A

IFR1:5,000

A 03/12/2018 ISSUED FOR REVIEW SS RST RST DJTM801-048-A1012-301 TYPICAL SECTIONS & DETAILS

11147-666-91C-0436

B301

R4 RESIDUEDISPOSAL FACILITY

SADDLE DAM 9

B301

SADDLE DAM 8

SPILLWAY

SADDLE DAM 10

TOE DRAIN TOWER

TOE DRAIN TOWER

NOTES:

1. 1m CONTOUR INTERVAL SHOWN. TOPOGRAPHY DERIVED FROMSITE SURVEY DATA.

2. THE CONTRACTOR IS NOT TO DAMAGE ANY INFRASTRUCTUREDURING THE CONTRACT EXECUTION.

3. THE CONTRACTOR IS TO REPAIR ANY DAMAGE TOINFRASTRUCTURE AT IT'S OWN COST.

4. THE EXISTING COMPRESSED AIRLINE IS TO BE RELOCATED BYOTHERS PRIOR TO ANY WORKS.

5. EMBANKMENT TOE DRAIN TO BE INTERCONNECTED TO BUTTRESSTOE DRAIN AT 150 M INTERVALS.

6. FINAL DRAIN ALIGNMENT TO BE CONFIRMED BY THE PRINCIPALPRIOR TO CONSTRUCTION.

LEGEND:

EXISTING CLEARED EXTENT

EXISTING ROAD

EXISTING WATER SOURCE

POCKETS OF NON-CLEAREDVEGETATION

BUTTRESS TOE DRAIN

EMBANKMENT TOE DRAIN

BUTTRESS TOE DRAIN/PERIMETER DRAIN INTERCONNECTION

PERIMETER DRAIN

EXISTING COMPRESSED AIRLINE (SEE NOTE 4)

Q:\P

E801

-000

48 B

oddi

ngto

n\AC

AD\0

0-En

gine

erin

g D

raw

ings

\02-

Prel

imin

ary

Dra

win

gs\A

1012

\801

-048

-A10

12-3

01

A

REF

EREN

CES

SHEE

T SI

ZE A

3

REV

ISIO

NS

SCALEREV



287

1 2 3 4 5 6 7 8 9 10

A

B

C

D

E

F

G

A

B

C

D

E

F

G


DESIGN CLIENT APP



THIRD ANGLE

PROJECTION


NASIA PACIFIC

BODDINGTON GOLD MINEF1-F3 RESIDUE DISPOSAL AREASTAGE 12 EMBANKMENT BUTTRESS DRAINAGETYPICAL SECTIONS AND DETAILS

801-048-A1012-301A

IFR1:400

A 03/12/2018 ISSUED FOR REVIEW SS RST RST DJTM801-048-A1012-103 SADDLE DAM 3 BUTTRESS DRAINAGE LAYOUT801-048-A1012-104 SADDLE DAM 4 BUTTRESS DRAINAGE LAYOUT801-048-A1012-105 SADDLE DAM 5 BUTTRESS DRAINAGE LAYOUT801-048-A1012-107 SADDLE DAM 7 BUTTRESS DRAINAGE LAYOUT801-048-A1012-108 SADDLE DAM 8 BUTTRESS DRAINAGE LAYOUT801-048-A1012-109 SADDLE DAM 9 BUTTRESS DRAINAGE LAYOUT

11147-666-91C-0437

31

B109 1:100

TYPICAL BUTTRESS TRENCH DRAINS SECTION (SADDLE DAM 9)

800650

600 600

1000

150ZONE B1

GRAVEL

BIDIM A24 GEOTEXTILETO EXISTING EMBANKMENT FACE

160mm DIA. SOLIDDRAIN PIPE (SEE NOTE 6)

160mm DIA. PERFORATEDDRAIN PIPE


C- 600

VARIES

150

160mm DIA. SOLIDSDRAIN PIPE

GRAVEL DRAINAGE LAYER

PIPE TRENCH BACKFILL

C- 1:50

TYPICAL CROSS DRAIN SECTION

NOTES:

1. BUTTRESS FOUNDATION IN THE VALLEY FLOOR WHICH IS DEEMEDUNSUITABLE BY THE ENGINEER ON SITE IS TO BE REMOVED ANDREPLACED BY ZONE A1 OR ZONE B2 MATERIAL.

2. CONSTRUCTION MATERIALS TO BE APPROVED BY THE ENGINEER.

3. PLACED CONSTRUCTION MATERIALS ARE TO BE TESTED FORDENSITY AND MOISTURE CONTENT AND APPROVED BY THEENGINEER PRIOR TO PLACEMENT OF SUBSEQUENT LAYERS.

4. ALL FILL MATERIAL TO BE PLACED AND COMPACTED INACCORDANCE WITH THE TECHNICAL SPECIFICATION.

5. REQUIREMENT FOR BIDIM A24 GEOTEXTILE AS DIRECTED BY THEENGINEER.

6. CROSS DRAIN CONSTRUCTED AT NOMINAL 150m CENTRES.

GEOTEXTILE(SEE NOTE 5)

1500

31

A108 1:100

TYPICAL BUTTRESS TRENCH DRAINS SECTION (SADDLE DAM 3 - 8)

800650

600 600

1000

150ZONE B1

GRAVEL

EXISTING EMBANKMENT FACE

A107

160mm DIA. SOLIDDRAIN PIPE (SEE NOTE 6)



C-

GEOTEXTILE(SEE NOTE 5)

A105

1500

150

600160mm DIA. SOLID

DRAIN PIPE

160mm DIA. SOLIDDRAIN PIPE

A104

A103

2000

160mm DIA. SOLIDDRAIN PIPE

GRAVEL

APPENDIX B

Quantities

NEWMONT BODDINGTON GOLD

STAGE 12 RDA CONSTRUCTION Rev. M

20/12/2018

SCHEDULE OF RATES - PRELIMINARY CONSTRUCTION COST ESTIMATE SUMMARY

PART DESCRIPTION

COST

(AUD)

PART A PRELIMINARY AND GENERAL

PART B SADDLE DAM 1

PART C SADDLE DAM 3

PART D SADDLE DAM 4

PART E SADDLE DAM 5

PART F SADDLE DAM 7

PART G SADDLE DAM 8

PART H SADDLE DAM 9

PART I SADDLE DAM 10

PART J WATTLE PIT EMBANKMENT

PART K SPILLWAY CONSTRUCTION

PART L BASIN WORK

PART M REHABILITATION

PART N MISCELLANEOUS

PART O DAY-WORKS

TOTAL



20/12/2018

SCHEDULE OF RATES - PRELIMINARY CONSTRUCTION COST ESTIMATE

ITEM DESCRIPTION UNIT QUANTITY RATE AMOUNT

PART A PRELIMINARY AND GENERALSECTION 2 - PRELIMINARIES

A1.1

Mobilisation of personnel, plant, equipment and materials, move onto

site; establishment of Contractor’s buildings, stores, and workshops;

insurance charges and generally all expenses incurred in carrying out

this contract and not included elsewhere in the quantities

Lump Sum 1

A1.2Project Management, Supervision, Safety Personnel, QMR Officer,

Administration, Fitters, Servicemen, Project Planner and Surveyor. month 8

A1.3Maintenance of Contractor’s buildings, stores, and workshops; on-going

costs and general overheads.month 8

A1.4Demobilisation of personnel, plant, equipment, cleaning up and move

off site.Lump Sum 1

PART A TOTAL


PART B SADDLE DAM 1B1 EMBANKMENT CONSTRUCTION

B1.1 Embankment raise foundation preparation. m² 6,400

B1.2Excavate from local (< 2 km haul distance) stockpile or borrow area.

Place Zone A1 in embankment.m³ 44,400

B1.3 Excavate from Wattle Pit. Place Zone B2 in embankment. m³ 79,000

B1.4Excavate general fill from local (< 2 km haul distance) stockpile or

borrow and place safety bunds.m 990

B1.5Excavate from local (< 2 km haul distance) stockpile or borrow. Place

150 mm thick wearing course.m² 35,520

B1.6Remove Stage 11 wearing course and place as Zone B1 in

embankment.m³ 5,100

B1.7Excavate from local (< 2 km haul distance) stockpile or borrow. Place

300 mm thick bearing layer on tailings beach (PROVISIONAL).m³ 2,000

B1.8Extra overhaul distance for Zone A1, B2, safety bunds, wearing course

and bearing layerm³/km Rate Only

B2 BEACH DRAIN

B2.1 Supply and install precast concrete sections. No. 2

B3 EMBANKMENT UPSTREAM DRAINAGE CHUTES

B3.1 Construct Embankment Upstream Drainage Chutes No. 20

B4 TAILINGS DISTRIBUTION PIPEWORK - REMOVAL

B4.1 Remove tailings distribution pipeline. m 990

B5 TAILINGS DISTRIBUTION PIPEWORK - REINSTATEMENT

B5.1 Reinstate tailings distribution pipeline. m 990

B6 STANDPIPE PIEZOMETER EXTENSION

B6.1 Extend standpipe piezometers (No.7, 2.5 m for each) m 21

B7 HDPE PIPEWORK

B7.1 Install/Extend Sump 3 riser pipes (600 mm diameter). m 7

B8 HDPE RISER PIPEWORK

B8.1 Install/Extend 50 mm diameter dip tubes inside sump riser pipework. m 7

PART B TOTAL


PART C SADDLE DAM 3C1 EMBANKMENT CONSTRUCTION

C1.1 Embankment raise foundation preparation. m² 23,800

C1.2Excavate material from tailings beach. Place arisings as Zone E

including surround to toe drain tower.m³ 96,200

Page A3-2



20/12/2018

SCHEDULE OF RATES - PRELIMINARY CONSTRUCTION COST ESTIMATE

C1.3Excavate from local (< 2 km haul distance) stockpile or borrow area.

Place Zone B1 to downstream shoulder of Zone E.m³ 26,400

C1.4Excavate general fill from local (< 2 km haul distance) stockpile or

borrow and place safety bunds.m 1,900

C1.5Excavate from local (< 2 km haul distance) stockpile or borrow. Place


C1.6Remove Stage 11 wearing course and place as Zone B1 in


C1.7Excavate from local (< 2 km haul distance) stockpile or borrow. Place


C1.8Extra-over for additional haul distance for B1, safety bunds, wearing

course and bearing layerm³/km Rate Only

C2 EMBANKMENT UPSTREAM DRAINAGE CHUTES

C2.1 Construct Embankment Upstream Drainage Chutes No. 30

C3 TAILINGS DISTRIBUTION PIPEWORK - REMOVAL

C3.1 Remove tailings distribution pipeline. m 1,900

C4 TAILINGS DISTRIBUTION PIPEWORK - REINSTATEMENT

C4.1 Reinstate tailings distribution pipeline. m 1,900

D5 PRECAST CONCRETE UNITS

D5.1 Supply and install 1500 mm ID concrete pipes to toe drain tower. No. 1

C5 CONSTRUCT BENCH DRAINS

C5.1 Construct RL 336 m bench drain m 1,900

PART C TOTAL


PART D SADDLE DAM 401 EMBANKMENT CONSTRUCTION

D1.1 Embankment raise foundation preparation. m² 9,100

D1.2Excavate material from tailings beach. Place arisings as Zone E


D1.3Excavate from local (< 2 km haul distance) stockpile or borrow area.


D1.4Excavate general fill from local (< 2 km haul distance) stockpile or


D1.5Excavate from local (< 2 km haul distance) stockpile or borrow. Place


D1.6Remove Stage 11 wearing course and place as Zone B1 in

embankment.m³ 900

D1.7Excavate from local (< 2 km haul distance) stockpile or borrow. Place


D1.8Extra-over for additional haul distance for B1, safety bunds, wearing


D2 EMBANKMENT UPSTREAM DRAINAGE CHUTES

D2.1 Construct Embankment Upstream Drainage Chutes No. 10

D3 TAILINGS DISTRIBUTION PIPEWORK - REMOVAL

D3.1 Remove tailings distribution pipeline. m 725

D4 TAILINGS DISTRIBUTION PIPEWORK - REINSTATEMENT

D4.1 Reinstate tailings distribution pipeline. m 725

D5 PRECAST CONCRETE UNITS

D5.1 Supply and install 1500 mm ID concrete pipes to toe drain tower. No. 1

D6 CONSTRUCT BENCH DRAINS

D6.1 Construct RL 336 m bench drain m 725

PART D TOTAL


PART E SADDLE DAM 5E1 EMBANKMENT CONSTRUCTION

Page A3-3



20/12/2018

SCHEDULE OF RATES - PRELIMINARY CONSTRUCTION COST ESTIMATEE1.1 Embankment raise foundation preparation. m² 16,700

E1.2Excavate material from tailings beach. Place arisings as Zone E


E1.3Excavate from local (< 2 km haul distance) stockpile or borrow area.


E1.4Excavate general fill from local (< 2 km haul distance) stockpile or


E1.5Excavate from local (< 2 km haul distance) stockpile or borrow. Place


E1.6Remove Stage 11 wearing course and place as Zone B1 in


E1.7Excavate from local (< 2 km haul distance) stockpile or borrow. Place


E1.8Extra-over for additional haul distance for B1, safety bunds, wearing


E2 EMBANKMENT UPSTREAM DRAINAGE CHUTES

E2.1 Construct Embankment Upstream Drainage Chutes No. 20

E3 TAILINGS DISTRIBUTION PIPEWORK - REMOVAL

E3.1 Remove tailings distribution pipeline. m 1,335

E4 TAILINGS DISTRIBUTION PIPEWORK - REINSTATEMENT

E4.1 Reinstate tailings distribution pipeline. m 1,335

PART E TOTAL


PART F SADDLE DAM 7EMBANKMENT CONSTRUCTION

F1.1 Embankment raise foundation preparation. m² 18,900

F1.2Excavate material from tailings beach. Place arisings as Zone E


F1.3Excavate from local (< 2 km haul distance) stockpile or borrow area.


F1.4Excavate general fill from local (< 2 km haul distance) stockpile or


F1.5Excavate from local (< 2 km haul distance) stockpile or borrow. Place


F1.6Remove Stage 11 wearing course and place as Zone B1 in


F1.7Excavate from local (< 2 km haul distance) stockpile or borrow. Place


F1.8Extra-over for additional haul distance for B1, safety bunds, wearing


F2 EMBANKMENT UPSTREAM DRAINAGE CHUTES

F2.1 Construct Embankment Upstream Drainage Chutes No. 20

F3 TAILINGS DISTRIBUTION PIPEWORK - REMOVAL

F3.1 Remove tailings distribution pipeline. m 1,510

F4 TAILINGS DISTRIBUTION PIPEWORK - REINSTATEMENT

F4.1 Reinstate tailings distribution pipeline. m 1,510

F5 CONSTRUCT BENCH DRAINS

F5.2 Construct RL 346 m bench drain as shown on drawings. m 1,510

F6 DROP CHUTES

F6.1 Construct drop chutes (4 No.) m 70

PART F TOTAL


PART G SADDLE DAM 8EMBANKMENT CONSTRUCTION

Page A3-4



20/12/2018

SCHEDULE OF RATES - PRELIMINARY CONSTRUCTION COST ESTIMATEG1.1 Embankment raise foundation preparation. m² 22,500

G1.2Excavate material from tailings beach. Place arisings as Zone E


G1.3Excavate from local (< 2 km haul distance) stockpile or borrow area.


G1.4Excavate general fill from local (< 2 km haul distance) stockpile or


G1.5Excavate from local (< 2 km haul distance) stockpile or borrow. Place


G1.6Remove Stage 11 wearing course and place as Zone B1 in


G1.7Excavate from local (< 2 km haul distance) stockpile or borrow. Place


G1.8Extra-over for additional haul distance for B1, safety bunds, wearing


G2 EMBANKMENT UPSTREAM DRAINAGE CHUTES

G2.1 Construct Embankment Upstream Drainage Chutes No. 30

G3 TAILINGS DISTRIBUTION PIPEWORK - REMOVAL

G3.1 Remove tailings distribution pipeline. m 1,800

G4 TAILINGS DISTRIBUTION PIPEWORK - REINSTATEMENT

G4.1 Reinstate tailings distribution pipeline. m 1,800

G5 CONSTRUCT BENCH DRAINS

G5.2 Construct RL 346 m bench drain as shown on drawings. m 1,800

G6 DROP CHUTES

G6.1 Construct drop chutes (3 No.) m 50

PART G TOTAL


PART H SADDLE DAM 9H1 EMBANKMENT CONSTRUCTION

H1.1 Embankment raise foundation preparation. m² 14,900

H1.2Excavate material from tailings beach. Place arisings as Zone E


H1.3Excavate from local (< 2 km haul distance) stockpile or borrow area.

Place Zone B1 to downstream shoulder.m³ 14,600

H1.4Excavate general fill from local (< 2 km haul distance) stockpile or


H1.5Excavate from local (< 2 km haul distance) stockpile or borrow. Place


H1.6Remove Stage 11 wearing course and place as Zone B1 in


H1.7Excavate from local (< 2 km haul distance) stockpile or borrow. Place

300 mm thick bearing layer on tailings beach. (PROVISIONAL).m³ 4,500

H1.8Extra-over for additional haul distance for B1, safety bunds, wearing


H2 TOE/BEACH DRAIN TOWERS

H2.1 Supply and install precast concrete sections. No. 2

H3 EMBANKMENT UPSTREAM DRAINAGE CHUTES

H3.1 Construct Embankment Upstream Drainage Chutes No. 20

H4 TAILINGS DISTRIBUTION PIPEWORK - REMOVAL

H4.1 Remove tailings distribution pipeline. m 1,185

H5 TAILINGS DISTRIBUTION PIPEWORK - REINSTATEMENT

H5.1 Reinstate tailings distribution pipeline. m 1,185

H6 CONSTRUCT BENCH DRAINS

H6.2 Construct RL 346 m bench drain as shown on drawings. m 1,185

H7 DROP CHUTES

H7.1 Construct drop chutes (2 No.) m 40

Page A3-5



20/12/2018

SCHEDULE OF RATES - PRELIMINARY CONSTRUCTION COST ESTIMATEPART H TOTAL


PART I SADDLE DAM 10I1 EMBANKMENT CONSTRUCTION

I1.1 Embankment raise foundation preparation. m² 17,600

I1.2 Excavate material from tailings beach. Place arisings as Zone E. m³ 67,700

I1.3Excavate from local (< 2 km haul distance) stockpile or borrow area.

Place Zone B1 to downstream shoulder.m³ 19,600

I1.4Excavate general fill from local (< 2 km haul distance) stockpile or


I1.5Excavate from local (< 2 km haul distance) stockpile or borrow. Place


I1.6Remove Stage 11 wearing course and place as Zone B1 in


I1.7Excavate from local (< 2 km haul distance) stockpile or borrow. Place


I1.8Extra-over for additional haul distance for B1, safety bunds, wearing


I2 TOE/BEACH DRAIN TOWERS

I2.1 Supply and install precast concrete sections. No. 4

I3 EMBANKMENT UPSTREAM DRAINAGE CHUTES

I3.1 Construct Embankment Upstream Drainage Chutes No. 20

I4 TAILINGS DISTRIBUTION PIPEWORK - REMOVAL

I4.1 Remove tailings distribution pipeline. m 1,405

I5 TAILINGS DISTRIBUTION PIPEWORK - REINSTATEMENT

I5.1 Reinstate tailings distribution pipeline. m 1,405

PART I TOTAL


PART J WATTLE PIT EMBANKMENTJ1 EMBANKMENT CONSTRUCTION

J1.1Widen the Wattle Pit Embankment eastern crest using Zone A1

material. m³ 3,000

J1.2Excavate from local (< 2 km haul distance) stockpile or borrow area.

Place Zone B1 in embankment.m³ 20,000

J1.3Excavate general fill from local (< 2 km haul distance) stockpile or


J1.4Excavate from local (< 2 km haul distance) stockpile or borrow. Place

150 mm thick wearing course.m² 680

PART J TOTAL


PART K SPILLWAY CONSTRUCTIONK1 EXCAVATION AND FILLING

K1.1 Excavate rock from existing spillway, place in local stockpile. m³ 1,600

K1.2

Excavate spillway channel including access ramps and drainage

channel tie-ins. Place arisings as Zone B of Main Embankment (Saddle

Dam 10).

m³ 7,900

K1.3Excavate from local (< 2 km haul distance) stockpile or borrow. Place

300 mm thick erosion protection layer.m³ 1,600

PART K TOTAL


Page A3-6



20/12/2018

SCHEDULE OF RATES - PRELIMINARY CONSTRUCTION COST ESTIMATEPART L BASIN WORK

L1 DRAINAGE

L1.1

Excavate from local (< 2 km haul distance) stockpile, borrow area, or

cut to fill within the basin area, to achieve positive drainage in the

HDPE Liner Area (Technical Specification Clause 4.15.7), inclusive of

main collector drain and protection channel excavation

(PROVISIONAL).

m³ 30,000

L2 SOIL LINER

L2.1Excavate from Wattle Pit borrow area. Place min 300 mm thick

compacted clay liner (PROVISIONAL).m² 86,800

L2.2Excavate from local (<2km haul distance) borrow or stockpile. Place

min 400 mm thick gravel drainage layer.m² 0

L3 FOUNDATION PREPARATION

L3.1Scarify to 300 mm depth, moisture condition and compact HDPE basin

liner foundation area (PROVISIONAL). m² 86,800

L3.2Excavate excess materials from within the Basin Work area and place

in Local Stockpile (Provisional). m³ 30,000

L4 PERFORATED DRAINAGE PIPEWORK

L4.1Pipework in HDPE Lined Area - 160 mm diameter main collector drain,

inclusive of geotextile, sand, drainage pipes and fittings.m 700

L4.2Pipework in HDPE Lined Area - 100 mm diameter branch drain,

inclusive of geotextile, sand, drainage pipes and fittings. m 1,736

L5 HDPE LINER

L5.1 Install 1.5 mm (60 mil) smooth HDPE liner. m² 86,800

PART L TOTAL


PART M REHABILITATIONM1 EMBANKMENT DOWNSTREAM FACE REHABILITATION

M1.1

Contour rip to 150 mm on embankment downstream face; win from

designated topsoil stockpile, load, haul, place and spread 100 mm

thick topsoil layer; contour rip to original embankment face.

M1.1.1 Saddle Dam 7 m² 47,800

M1.1.2 Saddle Dam 8 m² 81,800

M1.1.3 Saddle Dam 9 m² 37,500

M2.1Win from local stockpile, sort, screen, load, haul and place 500 mm

thick rock cladding on embankment downstream face.

M2.1.1 Saddle Dam 1 m² 10,600

PART M TOTAL


PART N MISCELLANEOUSN1 MAINTENANCE

N1.1Dayworks - provide equipment and operator to repair embankment

erosion damage. PROVISIONAL. Sum

N1.2Provide CAT14H Grader and operator for general road maintenance

(over and above construction road maintenance). (PROVISIONAL)hours 205

N1.1.2Provide CAT14H Grader and operator for Embankment Crest

maintenance. (PROVISIONAL)hours 205

N2 RAMPS

N2.1Construct permanent ramps of Zone B2 material as directed by the

principal (PROVISIONAL).m³ 70,000

PART N TOTAL


Page A3-7



20/12/2018

SCHEDULE OF RATES - PRELIMINARY CONSTRUCTION COST ESTIMATEPART O DAY-WORKS

O.1 Day-works Allowance (PROVISIONAL). Sum 1

PART O TOTAL

Page A3-8


STAGE 12 RDA CONSTRUCTION Rev. D

20/12/2018

SCHEDULE OF RATES - BEACH DRAIN CONSTRUCTION COST ESTIMATE SUMMARY

PART DESCRIPTION

COST

(AUD)

1 Saddle Dam 5

2 Saddle Dam 7

3 Saddle Dam 8

TOTAL

NEWMONT BODDINGTON GOLD MINE Rev. D

STAGE 12 BEACH DRAIN QUANTITIES 20-Dec-18

Item Description Unit Quantity Rate Cost

1 Saddle Dam 5

1.1 Beach Drain

1.1.1 Excavate to form beach drain m³ 8,128

1.1.2 Foundation preparation m² 13,534

1.1.3 Install geotextile surround m² 29,634

1.1.4

Install 160 mm diameter perforated drainage pipe with

filter sock including interconnections at 100 m spacing m 8,010

1.1.5

Win from designated stockpile, load, haul and place

drainage gravel m³ 3,338

1.2 Beach Outfall

1.2.1

Excavate outfall pipe trench (outer beach drain to inner

drain) m³ 540

1.2.2

Install 250 mm OD PE100 PN8 outfall pipe complete

including all connections and fittings m 900

1.2.3 Weld 250 mm OD PE100 PN 8 pipe No. 63

1.2.4

Install Beach Drain/Outfall Pipe manifold including

connection to beach drain No. 18

1.2.5 Backfill outlet pipe trench m³ 512

1.3 Embankment Outfall

1.3.1

Excavate to form embankment outfall (through

embankment) m³ 808

1.3.2

Win from designated stockpile, load haul and place Zone

A1 Bedding layer m³ 6

1.3.3

Win from designated stockpile, load haul and place Filter

Zone Bedding layer (includes drainage zone) m³ 27

1.3.4


through embankment to bench collector pipe including all

connections, fittings and welding m 164


1.3.6


A1 surround to outfall pipe m³ 25

1.3.7

Win Zone A1 from designated stockpile, load haul, blend

with bentonite, and place surround to outfall pipe m³ 7

1.3.8

Win from designated stockpile, load haul and place filter

zone surround to outfall pipe m³ 27

1.3.9

Win from designated stockpile, load haul and place

drainage zone surround to outfall pipe m³ 17

1.3.10


A1 fill m³ 714

1.4 Collector Pipe

1.4.1

Install 250 mm OD PE100 PN8 collector pipe complete

including all connections, fittings, welding and connection

to beach drain outfall pipes m 1,335


1.5 Collector Pipe Outfall

1.5.1

Install 250 mm OD PE100 PN8 collector pipe outfall to

sump complete including all connections, fittings,

welding, road crossing excavation (1 m deep) and Zone B2 m 100





2 Saddle Dam 7

2.1 Beach Drain




2.1.4



2.1.5



2.2 Beach Outfall

2.2.1

Excavate outfall pipe trench (outer beach drain to

embankment toe) m³ 660

2.2.2


including all connections and fittings m 1,100


2.2.4





2.3.1


embankment) m³ 396

2.3.2



2.3.3



2.3.4





2.3.6



2.3.7



2.3.8



2.3.9



2.3.10


A1 fill m³ 306

2.4 Collector Pipe No. 16

2.4.1






2.5.1








3 Saddle Dam 8

3.1 Beach Drain




3.1.4



3.1.5



3.2 Beach Outfall

3.2.1

Excavate outfall pipe trench (outer beach drain to

embankment toe) m³ 780

3.2.2


including all connections and fittings m 1,300


3.2.4





3.3.1


embankment) m³ 528

3.3.2



3.3.3



3.3.4





3.3.6



3.3.7



3.3.8



3.3.9



3.3.10


A1 fill m³ 408

3.4 Collector Pipe

3.4.1






3.5.1





legend - der.wa.gov.au

Documents