45
CHAPTER 7.0: COST ESTIMATES WITH CONSTRUCTION METHODOLOGY DESCRIPTION ON MAJOR WORKS 7.1 SUMMARY OF COST ESTIMATES It may be convenient to end the climactic suspense by revealing right away the end result of this chapter which is the costs that will be involved in the various alternatives of developing the Villa Siga Hydropower Project. The subsequent sections of this chapter will be just be left with the anti-climactic role of providing the basis and proofs for the costs shown as a front act herein. The summaries of cost are: 7.1.1 For Scheme 01: Tunneling all throughout Headrace Item of Work Scheme 1 A Scheme 1 B 11.50 MW Plant 16.50 MW Plant A. Civil Work A.1 Weir and Intake PHP 38,686,000 PHP 38,686,000 A.2 Tunneling Works 1,079,944,500 1,088,944,500 (full 4,725 m. length) A.3 Headrace line along - - Natural contour A.4 Siphan lines Across Yabangan 14,100,000 14,100,000 and Nahojawan A.5 Surge Tank 27,000,000 27,000,000 A.6 Penstock Line 44,900,000 44,900,000 A.7 Powerhouse & Tailrace 30,000,000 40,000,000 A.8 Substation Civil Works 1,000,000 1,000,000 A.9 Connecting access road from Brgy. Santiago to 96,000,000 96,000,000 Project site A.10 Slope protection works 40,000,000 40,000,000 ___________ ___________ Sub-total ‘Civil Works’ PHP1,371,630,500 PHP 1,390,630,500 Scheme 1 A Scheme 1B Item of Work 11.50 MW Plant 16.50 MW Plant B. Electro-Mechanical B.1 Turbines, generator PHP 290,000,000 PHP 390,000,000 Control panels, _________________________________________________________________________________________________________________________________________________ _____________________________ Page 7-1

Cost Estimate of Hydro Plant 11MW and 16.5MW

Embed Size (px)

Citation preview

Page 1: Cost Estimate of Hydro Plant 11MW and 16.5MW

CHAPTER 7.0: COST ESTIMATES WITH CONSTRUCTION METHODOLOGY DESCRIPTION ON MAJOR WORKS

7.1 SUMMARY OF COST ESTIMATES

It may be convenient to end the climactic suspense by revealing right away the end result of this chapter which is the costs that will be involved in the various alternatives of developing the Villa Siga Hydropower Project. The subsequent sections of this chapter will be just be left with the anti-climactic role of providing the basis and proofs for the costs shown as a front act herein. The summaries of cost are:

7.1.1 For Scheme 01: Tunneling all throughout Headrace

Item of Work Scheme 1 A Scheme 1 B 11.50 MW Plant 16.50 MW Plant

A. Civil Work

A.1 Weir and Intake PHP 38,686,000 PHP 38,686,000

A.2 Tunneling Works 1,079,944,500 1,088,944,500

(full 4,725 m. length)

A.3 Headrace line along - -Natural contour

A.4 Siphan linesAcross Yabangan 14,100,000 14,100,000 and Nahojawan

A.5 Surge Tank 27,000,000 27,000,000

A.6 Penstock Line 44,900,000 44,900,000

A.7 Powerhouse & Tailrace 30,000,000 40,000,000

A.8 Substation Civil Works 1,000,000 1,000,000

A.9 Connecting access road from Brgy. Santiago to 96,000,000 96,000,000

Project site A.10 Slope protection works 40,000,000 40,000,000

___________ ___________

Sub-total ‘Civil Works’ PHP1,371,630,500 PHP 1,390,630,500

Scheme 1 A Scheme 1BItem of Work 11.50 MW Plant 16.50 MW Plant

B. Electro-Mechanical

B.1 Turbines, generator PHP 290,000,000 PHP 390,000,000Control panels,Governors, powerTransformer & relatedGenerating sets

B.2 Electrical service 5,000,000 5,000,000(plant lighting and wiring)

B.3 20 Km. / Tie Line to ANTECO’S 13.2 KV grid 30,000,000 30,000,000

__________ __________Sub-Total ’Electro- PHP325,000,000 PHP 425,000,000Mechanical Work’

C. Engineering Services (7.9% of cost of 16.50 MW Plant)

C.1 12-months Detailed Engineering Design PHP 78,000,000 PHP 78,0000,000

C.2 Construction Supervision Services (3 years) PHP 93,000,000 PHP 93,000,000

Sub-Total ‘Engineering __________ __________ Services’ PHP 171,000,000 PHP171,000,000

______________________________________________________________________________________________________________________________________________________________________________ Page 7-1

Page 2: Cost Estimate of Hydro Plant 11MW and 16.5MW

D. Administrative / Other Vital Cost (about 7.9% of cost for 16.5 MW Plant) to cover the following:

* Pre-operating expenses / Insurance Premiums* Row Acquisition* Documentary Stamps* Bank’s Front end Fee /

Commitment Fee * Additional Contingencies

Lump Sum Administrative Cost PHP 171,000,000 PHP 171,000,000 ___________ ___________

Total Project Cost PHP2,039,230,500 PHP 2,157,630,500

PHP Cost per KW: PHP 177,324 / KW PHP 130,765 / KWPHP Cost per KW: $ 3,166 / KW $ 2,335 / KW

7.1.2 For Scheme 02: 49.5% Tunnel: 50.50% Headrace along Natural Contour

Scheme 2 A Scheme 2 BItem of Work 11.50 MW Plant 16.50 MW Plant

A. Civil Work

A.1 Weir and Intake PHP38,686,000 PHP38,686,000

A.2 Tunneling Works(reduced 2,340 m. 633,047,600 642,047,600length)

A.3 Headrace line along 293,877,000 293,877,000Natural contour

A.4 Siphan lines 14,100,000 14,100,000Across Yabanganand Nahojawan

A.5 Surge Tank 27,000,000 27,000,000

A.6 Penstock Line 28,750,000 28,750,000

Scheme 2 A Scheme 2 BItem of Work 11.50 MW Plant 16.50 MW Plant

A.7 Powerhouse & Tailrace PHP 30,000,000 PHP 40,000,000

A.8 Substation Civil Works 1,000,000 1,000,000

A.9 Connecting access road from Brgy. Santiago 96,000,000 96,000,000

Lau-an to Project site

A.10 Slope Protection Works 100,000,000 100,000,000 ___________ ___________

Sub-total ‘Civil Works’ PHP 1,262,460,500 PHP 1,281,460,600

B. Electro-Mechanical Works B.1 Turbines, generator PHP 290,000,000 PHP 390,000,000

Control panels,Governors, powerTransformer & relatedGenerating sets

B.2 Electrical service 5,000,000 5,000,000(plant lighting and wiring)

B.3 20 Km. / Tie Line to ANTECO’S 13.2 KV grid 30,000,000 30,000,000 Sub-Total ‘Electro- PHP 325,000,000 PHP 425,000,000Mechanical Work’

C. Engineering Services (8.3% of cost of 16.50 MW Plant)

C.1 Detailed Engineering Design PHP 78,000,000 PHP 78,0000,000

C.2 Construction Supervision Services (3 years) PHP 93,000,000 PHP 93,000,000

Sub-Total ‘Engineering __________ __________ Services’ PHP 171,000,000 PHP171,000,000

______________________________________________________________________________________________________________________________________________________________________________ Page 7-2

Page 3: Cost Estimate of Hydro Plant 11MW and 16.5MW

D. Administrative / Other Vital Cost (about 8.3% of cost for 16.5 MW Plant)to cover the following:

* Working Capital / Insurance Premiums* Row Acquisition (Budget)* Documentary Stamps* Bank’s Front end Fee /

Commitment Fee * Additional Contingencies * Others

Lump Sum Administrative Cost PHP 171,000,000 PHP 171,000,000 ___________ ____________

Total Project Cost PHP1,929,460,600 PHP2,048,460,600

PHP Cost per KW: PHP 167,779 / KW PHP 124,149 / KWPHP Cost per KW: $ 2996 / KW $ 2,217 / KW

7.2 DETAILS OF COST ESTIMATES WITH DESCRIPTION OF CONSTRUCTION METHODOLOGY FOR MAJOR WORKS

7.2.1 Concrete Gravity Diversion Weir Structure (Scheme 01 & 02)

Item No. Quantity Unit Cost Amount

1. Care of Water 1 LS PHP 500,000.00 (temporary diversion dam)

2. Clearing and 35,700 m2 14 500,000.00Grabbing

3. Excavation in Rocks 924 m3 487 450,000.00

4. Excavation in 4,250 m3 80 340,000.00 Common Soils

5. Structure Backfill 1,557 m3 122 190,000.00

6. Embankment Fill 6,000 m3 100 600,000.00

Item No. Quantity Unit Cost Amount

7. Concrete Class ‘A’ 2,100 m3 6,100 12,810,000.00 (intake structures

& walls)

8. Concrete Class ‘B’ 1,200 m3 5,400 6,480,000.00(Dam & Apron)

9. Rubble/Boulder 1,500 m3 3,840 5,760,000.00 Masonry (Dam & Core)

10. Reinforcing Steel 70,930 kg 86 6,100,000.00

11. Boulder Riprap 154 m3 1,518 234,000.00

12. Grouted Riprap 26.5 m3 3,840 102,000.00

13. Gravel Bedding 465.50 580 PHP 270,000.00

14. Filter Drain 9.7 m 2,053 20,000.00

15. Trashracks Assembly 1.75 tons 203,287 356,000.00

16. Intake Gates 4 tons 327,346 1,310,000.00

17. Sluice Gates 6 tons 292,167 1,754,000.00

18. Steel Pipe Guardrails 1 LS 20,000.00

19. Ladder Rungs 1 LS 20,000.00

20. Material handling 350,000.00 ____________

Sub-Total ‘Weir’ PHP 38,686,000.00

______________________________________________________________________________________________________________________________________________________________________________ Page 7-3

Page 4: Cost Estimate of Hydro Plant 11MW and 16.5MW

CONSTRUCTION METHOD FOR CARE OF WATER

7.2.2 Tunneling Works

7.2.2.1 General Construction Plan

One of the major components of the Paliuan river hydropower project is the construction of a 2.90 meter bottom width by 3.5 meter high by about 4,725 meter long tunnel for scheme 01 development and of the same size but with shorter length of about 2,340 meters for scheme 02.

The tunnel construction will have two (2) lines-one (1) from Paliuan to Yabangan and the other from Yabangan to surge tank location for scheme 01. Scheme 02 will have only the Paliuan to Yabangan line. In order to expedite the driving of the tunnel, the general plan is to simultaneously drive openings from both the Paliuan and Yabangan portals, after completion of the portal site preparation and slope protection structures.

Tunnel excavation will be by the conventional “drill & blast” method utilizing controlled blasting technique to minimize occurrence of over break. The tunnel driving cycle will involve surveying and marking of the tunnel face, drilling & blasting, smoke-out or ventilation, mucking and hauling of the blasted material to designated spoil disposal sites and installation of necessary support structures.

The major equipment to be utilized are Twin Boom Jumbo Drill, Load Haul Dump (LHD) equipment, Low Profile Truck (LPT), ventilation fans, generators and related equipment units.

It is expected that the tunnel construction, including of installation of whatever tunnel support structures that will be selected, will be completed as follows:

Scheme Time01 (4,725 m. tunnel) 24 months

______________________________________________________________________________________________________________________________________________________________________________ Page 7-4

6

Sandbags

3

Riverbed

Section through A – A

2–3000 GPMx 10’ TDH

x 15 HPdewatering

pump

Temporary cofferdam

River slope

Natural river width

River flow

Weir construction area (half of width basis)

Plan

Discharge line furtherdownstream

A

A

Page 5: Cost Estimate of Hydro Plant 11MW and 16.5MW

02 (2,340 m. tunnel) 14 months

7.2.2.2 Description of Methodology

The methods planned to undertake the tunnel driving and related activities like portal preparation, construction of slope protection and initial portal structures and installation of tunnel supports and related works were developed based on existing conditions and from experiences from past projects.

Portals

To expedite the driving of the tunnel, it is planned that the excavation will be carried out simultaneously form the Paliuan and Yabangan Portals for both scheme 01 and 02 and another line (Yabangan and surge tank area portals) for scheme 02.

The preparation of the portals to the desired elevations and starting points and the construction of the necessary supports to create safe and unhampered entry into the tunnel openings will be completed prior to the start of the tunnel driving.

Preparation of Portals Sites

Preparation of Paliuan and Yabangan Portal sites will be open cut excavation to the desired elevation until face location would indicate a more or less stable ground to allow initial portal driving to be conducted.

A Backhoe with rock-breaker attachment will be provided for the portal site preparations. However, in areas were backhoe with rock-breaker is not applicable, a drill and blast method will be employed.

It is expected that the access roads leading to the portal sites and spoils disposal area is available and accessible on all weather conditions.

Within the vicinity of the portal locations, temporary facilities like shed for the power and compressed air generators will be

constructed. An area wide enough (at least 500 sq. meter flat area) for these structures will be provided including sufficient room for the tunnel equipment to operate effectively when going in and out of the tunnel openings.

Portal Support Structures

Based on the rock types and existing ground conditions in the identified portal sites, benching above the portals should be provided together with drainage canals to divert run-off water away from the portal openings.

It appears the most appropriate support that should be provided, to ensure the stability of the structures at the Paliuan and Yabangan portal, is to apply concrete shotcrete spray with wire mesh, rock bolts and drain holes on the subject slopes. However, additional safety measures will be made most specifically at the Paliuan portal by extending the wire mesh and anchor pins upward of the slopes to ensure safety of men and equipment from direct falling of cobbles/boulders during tunnel construction.

It is expected that the Paliuan and Yabangan portals will be established within 2-3 months from the start of mobilization.

Preliminary drawings in the chapter on outline design show the typical portal supports that could be provided including slope protection structures.

Initial Portal Driving

The Paliuan and Yabangan Portals will be opened and driven by taking short 1.5-2.0 meter advance, lightly blasted using controlled and smooth blasting technique. The roof of the opening will then be rock bolted. However, if necessary, steel rib or lattice girder spaced at 1.2 meter will be installed and lined with shotcrete after advancing for about more or less six (6) meters.

Tunnel Driving

The tunneling method planned is the conventional “drill and blast” method utilizing the smooth blasting technique to

______________________________________________________________________________________________________________________________________________________________________________ Page 7-5

Page 6: Cost Estimate of Hydro Plant 11MW and 16.5MW

minimize occurrence of over break. The tunnel driving cycle involves surveying and marking of the tunnel (utilizing the use of laser beam as operation’s guide), drilling and blasting, smoke-out or ventilation, mucking of blasted material and hauling to designated spoil disposal sites, and installation of tunnel supports.Drilling and Blasting

For the Paliuan and Yabangan Tunnel, preliminary studies recommend the use of “Axera DO6 226 EVO” telescopic twin boom articulated hydraulic jumbo drill rig or equivalent to be the primary equipment to drill the 59 holes of 45 mm diameter blast holes and the much lesser number of majority number of 102mm diameter reamer holes at the tunnel face, preparatory to explosive charging and subsequent blasting. To optimize the pull during each blast, 12’ – 14’ long by 38 mm drifter rod will be used.

Blasting pattern to be applied is the cylinder cut for cut holes on extremely good ground and the double wedge cut holes on good to extremely good ground and the double wedge cut holes on very poor to poor and extremely poor and very poor grounds. However, in both ground conditions, the roof and walls will be drilled with closely-spaced contour holes at 400 mm to 500mm apart for smooth blasting effect. As a control mechanism, blasting will be initiated with maximum delays as possible to reduce blasting vibration. Each blast is to have a net advance of about three (3) meters.

A typical drill holes pattern, indicating the number of blast holes and the sequence of the blast is shown in illustration drawings of this section.

Mucking and Disposal of Blasted Material

To expedite cleaning of the blasted materials at the tunnel face of both the Paliuan and Yabangan tunnel, it is planned that a 6.0 cubic yard capacity Load-Haul-Dump (LHD) will be used to muck-out the blasted materials and temporarily dumped to the nearest muckbay. Once completed, the blasted materials are loaded to the 8.5 cubic yard capacity Low Profile Truck (LPT), which in turn, will transport out of the tunnel and unloaded temporarily to the portal yard or directly to the designated spoil disposal area. In instances that the blasted materials are dumped temporarily at the portal yard, spoils will be mucked

and loaded by wheel loader to waiting truck, which in turn, will transport and unload the materials to the designated spoil disposal area.

Ventilation System

The blow type ventilation system will be used to provide sufficient air to the workers as well as to displace fumes and contaminated air inside the tunnel. Each heading will be provided by surface mounted high volume double stage ventilation fans to be installed at the portal and along the tunnel for every 400-500 meter thereafter as tunnel excavation progresses. Fresh air will be forced into the working face via a 750 mm or 900 mm diameter ventilation tube. Ventilation set-up may be either forced or exhaust depending on the actual conditions of the working area.

Drainage

The upgrade heading from the Yabangan Portal will be free draining. However, from the Paliuan header, pumping of water is necessary to drain water, the amount of which depends on the amount of seepages entering tunnel route.

Lightings

To provide sufficient lightings along the drives, a number of vapor type fluorescent lamps (drip/water proof), spaced at 10-15 meters apart, will be installed on one side of the opening. The active faces would be furnished with spotlights for effective visibility.

Compressed Air

A portable diesel-fuel operated air compressor will be installed at each portal to supply the compressed air requirement during the cleaning and charging of blast holes.

Safety

All personnel working at the tunnel will be required to wear safety hat and rubber boots and will be provided with cat lamps

______________________________________________________________________________________________________________________________________________________________________________ Page 7-6

Page 7: Cost Estimate of Hydro Plant 11MW and 16.5MW

and other required personnel protective requirement. All tunneling equipment will be fully equipped with lights and horns to keep miners aware of their presence.

A full time safety and ventilation officer will be employed to spot hazards in all the tunneling activities and make actions to ensure that all the appropriate safety measures are undertaken.

In addition, a full time nurse will be employed and assigned at each portal to immediately attend the workers as regards to health and/or in cases of emergencies. Also, a first aid stations with medicines will be provided.

Environmental Aspects

Each portal will be provided with siltation ponds to ensure that effluents coming out the tunnel will be controlled and disposed of in manners that will meet all environmental & siltation criteria. Likewise, the designated spoil disposal area will be developed in such a way that the excavated materials and run-off water will be handled properly to meet all environmental requirement specifically on erosion criteria.

In order to immediately address the any problems concerning environment and pollution control, an Environmental and Pollution officer will be employed to strictly monitor all environmental concern.

Noise and Vibration from Blasting

In compliance with regulations on blasting operations, the drilling pattern and firing sequence will employ the latest technology in blasting. Delayed initiation will be employed and explosive charges calculated to produce a powder factor that is acceptable enough. The appropriate seismograph/vibrometer will be used and installed at the location specified to record the noise and vibration levels resulted from blasting. The blast design will be updated or revised depending on the results obtained as to noise level and vibrations from the seismograph/vibrometer during the actual excavation.

Ground Condition Monitoring

A full time geologist / mapper will be employed for this particular work.

During the course of the excavation, monitoring of ground condition shall be conducted by geologic mapping and this will be initiated every after blast. The geologic mapping is purposely to determine the geologic structure for proper evaluation of the present ground condition and further to decide the appropriate type of tunnel support to be installed.

Underground Communication

An intercom will be installed at the field office, tunnel portal and along the tunnel identified locations purposely to ensure regular communications between personnel.

Tunnel Supports

To continuously advance the driving of the tunnel safely, even in extremely to very poor ground conditions, it is necessary that installation of tunnel supports either primary or secondary be undertaken on time. Failure to provide the necessary supports may drastically affect the tunneling schedule.

The type of tunnel supports required either primary or secondary, will be installed in accordance with the ground classification as dictated by the rock mass assessment that will be undertaken in the field.

Generally, tunnel supports will be within a safe distance from the active tunnel face.

______________________________________________________________________________________________________________________________________________________________________________ Page 7-7

Page 8: Cost Estimate of Hydro Plant 11MW and 16.5MW

Equipment to be Utilized

The following major equipment will be utilized for the tunneling activities:

DESCRIPTION NO. UNITJumbo Drill – Telescopic 2 booms 2 unitLoad-Haul-Dump (LHD), 6.0 cu. Yard capacity 3 unitLow Profile Truck (LPT) 2 unitLM56 Loader, 1.0 cu. Yard capacity or equivalent 1 unitShortcrete Machine 2 unitNormet Mixer, 5.5 cu. Meter capacity 2 unitVentilation Fans, Double Stage, 90 KW 10 unitSurveying Instrument 2 unitTunnel Laser Systems 2 unitSubmersible pumps, 7.5 KW 6 unitHilti drill 4 unitCap Lamps 120 unitCaplamp Charger 4 unitGeneratingSet 4 unitAir Compressor, 750 cfm 4 unitHandheld Drill 4 unitElectric Welding Machine 4 unitCutting Outfit 4 unitANFO Loader 4 unitSafety & Mine Rescure Equipment 1 unitBatch Plant 2 unitScreening Plant 1 unitRockbolt Tensioner 2 unitExtensometer 2 unitGrouting Machine 2 unitCompression Machine 1 unit

7.2.2.3 Cost Breakdown of Tunneling Works

Tunneling Works Cost Summary

Item No.

Particulars Amount in PHP

1 Direct CostMobilization & Demobilization 6,000,000Temporary Facilities 14,400,000Portal Construction & Stabilization 3,100,000Tunnel Excavation 283,500,000Tunnel Support 70,917,500Equipment Requirement (30% residual value on major tunnel equip.)

204,000,000

Disposal Area Development 4,100,000Sub-Total 586,017,500

2 Other Vital CostsAccess Road Maintenance 10,200,000Power Generation 39,600,000Compressed Air Requirement 12,900,000Restoration of Affected Areas 1,300,000Material Testing & Laboratory 1,600,000Medical & Safety Operation 1,900,000Transportation Expenses 10,600,000Security Services 4,000,000Communication Facilities 1,900,000Accommodation & Messing 9,600,000Site Supervision 81,800,000Permits & Licenses 8,300,000Bonds & Insurances 8,100,000

Sub-Total 191,800,000

Direct Cost 777,817,500

3 Add indirect cost (Taxes + Contingencies + overhead + profit), approximate 39%

302,127,000

4 Total cost for 4,725 m. long tunnel for scheme 01 1,079,944,500

5Cost for reduced tunnel length of 2,340 m. for scheme 02: total cost of PHP1,079,944,500 less equipment cost of PHP204,000.00) x 49.5% reduced tunnel length % + cost of equipment.

PHP633,047,600

______________________________________________________________________________________________________________________________________________________________________________ Page 7-8

Page 9: Cost Estimate of Hydro Plant 11MW and 16.5MW

Preliminary (FS Level) Cost Details

Description Unit Qty. Unit CostPHP

Total Costin PHP

* Tunnel Excavation ___portal (Paliuan) m 2,340____ portal (Yabangan) m 2,385Muckbays mInvert Clean-Up m

Total Tunnel Excavation m 4725 60,000 283,500,000* Tunnel Support1. Rockbolts 2.1 m long No. 9,685 3,420 33,122,700 3.0 m long Pc. 1,030 4,440 4,573,2002. Steel Fiber Reinforced Shotcrete 50 mm thick m2 20,000 1,100 22,000,000100 mm thick (primary support Type 3B) m2 1,200 2,220 2,664,0003. Lattice Girder Romtech Type B1 (2mradius) No. 126 43,860 5,526,4004. Steel Sets 100 UC 14.8 kg/m section No. 10 62,100 621,0005. Mass Concrete Invert 125 mm thick Lin. m. 630 1,440 907,2006. Steel Mesh Type SL 41 m2 2,180 300 654,0007. Grouting Drilling Hole for Grouting Lin. m. 1,000 180 180,000 Cement Grout Hole tonnes 30 22,300 669,000

Total Tunnel Support m 70,917,500

Details of Equipment Cost @ 30% residual value on Major tunneling equipment

DESCRIPTION Unit Qty. Unit Cost (US $)

Amount(US $)

Jumbo Drill – Telescopic 2 booms un 2 412,715 825,430Load-Haul-Dump (LHD), 6.0 cu. Yard capacity un 3 330,723 992,170Low Profile Truck (LPT) un 2 208,221 416,442Shortcrete Machine un 2 36,909 73,818Normet Mixer, 5.5 cu. Meter capacity un 2 156,246 312,492Microscoop 100D Spec L-4 or equivalent un 1 96,276 96,276Main Fans, Double Stage, 90KW (Gal 9) set 10 30,329 303,294Exhaust Fans, Double Stage, 90 KW (Gal 7) set 4 21,415 85,658Air Receiver Tank un 2 5,455 10,909Surveying Instrument un 2 4,545 9,091Tunnel Laser Systems un 2 7,634 15,269Gas Monitoring Device un 2 9,091 18,182Submersible pumps, 7.5 KW un 6 3,291 19,745Hilti drill un 2 2,091 4,182Cap Lamps un 120 100 12,000Caplamp Charger un 4 909 3,636Handheld Drill un 4 2,572 10,288Electric Welding Machine un 4 455 1,818Cutting Outfit un 4 182 727ANFO Loader pc 4 1,255 5,018Safety & Mine Rescue Equipment lot 1 27,273 27,273Batch Plant lot 2 29,091 58,182Screening Plant lot 1 14,545 14,545Rockbolt Tensioner un 2 1,364 2,727Extensometer un 2 3,831 7,661Grouting Machine un 2 30,545 61,091Compression Machine un 1 4,545 4,545

TOTAL COST ($) 3,392,471

Total Cost PHP@ PHP60/$, 3 years from now 204,000,000

______________________________________________________________________________________________________________________________________________________________________________ Page 7-9

Page 10: Cost Estimate of Hydro Plant 11MW and 16.5MW

7.2.3 Headrace Line along Natural Contour

7.2.3.1 Evaluation of Possible Alternatives:

ALTERNATIVE DESCRIPTION SKETCH QUANTITIES AND COST PER M.

01Reinforced concrete (RC) barrel buried 0.60 m. below finished road surface.

1. Concrete, 2.8 m3/m @ PHP6,100 = PHP 17,080

2. Reinforcing bars 177 Kg /m @ 86 = 15,222

3. Formworks, 50 Bd ft @ PHP52/Bd ft = 2,600

4. General excavation by blasting, 110 m3/m. @ PHP731/m3, with trimming = 80,410

5. Trench excavation in rock, 14.4 m/3 m = 7,013 @ PHP487 / m3

6. Backfill, 5.9 m3 @ PHP122 720

7. Gravel surfacing 0.30 m3 / m. 174 @ PHP580 / m3 ________

TOTAL PHP123,219/m.

02 Unlined open canal

1. General excavation by blasting PHP365,500 with trimming, 500 m3 @ PHP731/ m3

2. Trench excavation for canal section 5,114 in rock, 10.50 m3/m. @ PHP487 / m3

3. Gravel surfacing 0.30 m3 / m. 174 @ PHP580 / m3 __________ TOTAL PHP370,688/m.

______________________________________________________________________________________________________________________________________________________________________________ Page 7-10

Page 11: Cost Estimate of Hydro Plant 11MW and 16.5MW

ALTERNATIVE DESCRIPTION SKETCH QUANTITIES AND COST PER M.

03Pipe of fiberglass material, buried 2.00 m. below finished road surface. The 2.00 – meter earth cover requirement is to negate effect of truck load.

1. General excavation by blasting with = PHP 80,410 trimming, 110 m3 @ PHP731 / m3 @ PHP731 / m3

2. Trench excavation for canal section 9,448 in rock, 19.4 m3/m. @ PHP487 / m3

3. FRP cost PHP83,857 / m. to include Fabrication and delivery 83,857 (for quotation)

4. Backfilling 13 m3 / m. @ PHP122/m3 1,586

5. Gravel surfacing 0.30 m3/m x PHP 580/m3 174 __________ TOTAL PHP175,475/m.

The RC barrel alternative becomes the most economical as shown by the above analysis at PHP123, 219 / m. For the 2,385 length of headrace line from Yabangan to surge tank area, the cost is PHP293,877,000.00

______________________________________________________________________________________________________________________________________________________________________________ Page 7-11

Page 12: Cost Estimate of Hydro Plant 11MW and 16.5MW

7.2.4 Penstock Line

7.2.4.1 Evaluation of Possible Alternatives:ALTERNATIVE DESCRIPTION SKETCH QUANTITIES AND COST PER M.

01Steel pipe with static + dynamic pressure rating of 185 meters or 1.5 bars

Above ground installation for steel material with pipe sleepers as shown @ 6.00 m. spacing. Anchor blocks @ major bend.

Thickness of penstock

t = 5.06 x 10-2 HD with H = 123 m., D = 2.30 m. = 14.3 mm, say 16 mm

For scheme 01, length = 333 m.

* No. of tons = 670 tons* Cost is 670 tons x PHP96,000 / ton = PHP64.32 Million

For scheme 02, length = 212 m.

* No. of tons = 430 tons* Cost is 430 tons x PHP96,000 / ton = PHP41.28 Million

02Fiberglass reinforced pipe (FRP) with 1.5 bar pressure rating

Below ground installation for FRP to negate effect of ultraviolet rays.

As quoted by manufacturer price is PHP40 Million for scheme 01 (2.30 diameter, length of 333 m.) and PHP25 Million for scheme 02 (2.30 m. diameter, length of 212 m.).

Hence, adopt FRP for penstock

7.2.4.2 Total Costs for the Penstock LineScheme Pipe Excavation Concrete Anchor

BlocksConcrete Pipe

SleepersReinforcing Formworks Backfill Total

01 (length of 333 m.)

PHP40 Million 1200 m3 PHP487 = PHP584, 400

196 m3 @ PHP5,400 = PHP1,058,400

288 m3 @ PHP5,400 = PHP1,555,200

10,648 Kg @ PHP86/ Kg = HP915,728

14,520 bd. ft @ PHP52 / bd. Ft. = PHP755,040

200 m3 @ PHP122 = PHP24,400

PHP44,900,000

______________________________________________________________________________________________________________________________________________________________________________ Page 7-12

Page 13: Cost Estimate of Hydro Plant 11MW and 16.5MW

02 (length of 212 m.)

PHP25 Million Trench for pipe, 1820 m3 @ PHP487 = PHP886,340

130 m3 @ PHP5,400 = 702,000

180 m3 @ PHP5,400 = PHP972,000

6,820 Kg @ PHP86/Kg=PHP586,520

9,370 bd. ft @ PHP52 = PHP487,240

940 m3 @ PHP122= PHP114,680

PHP28,750,000

7.2.5 Surge Tank

Material, Fabrication Delivery and Installation

Excavation Concrete for Block Support

Concrete for Ring

Foundation

Reinforcing Bars

Formworks Total ‘say’ Million

PHP25 Million (as quoted by manufacturer)

714 m3 @ PHP487 = PHP347,718

118 m3 @ PHP5,400 =PHP637,200

32 m3 @ PHP6,100 =PHP195,200

4282 kg @ PHP86 =PHP368,252

4820 Bd. Ft. @ PHP52 =PHP250,640

‘say’ 27 M

7.2.6 Siphon Lines Across Nahojawan and Yabangan Creek, Total Length of 270 m.

Excavation Concrete Reinforcing Bars

Formworks Backfill Total

6,100 m3 @ PHP487 = PHP2,970,000

2.8 m3 /m for 270 m. = 756 m3 @ PHP6,100 = PHP4,611,600

177 kg/m for 270 m.= 47,790 kg @ PHp86/kg = PHP4,109,940

50 Bd. Ft./ m3 concrete x 756 m3 @ PHP52 = PHP1,965,600

3632 m3 @ PHP122 = PHP443,104

PHP14,100,000

7.2.7 Connecting Access Road from Barangay Santiago to Site including Spillway Type Crossing and Bridge Across Paliuan River

Structure Excavation Fill Sub Grade Preparation

GravelSurfacing

Concrete Reinforcing Bars

Formworks Total

9-KM. all weather road 8 m. gross width

117,375 m3 @ PHP80 =487PHP57 Million

45,000 m3 @PHP100 =PHP4.50 M

72,000 m3 @PHP20 =PHP1.44 M

5,400 m3 @ PHP580 =PHP3.13 M

- - - PHP66.07 Million

Spillway type road crossing @ 3 water ways

504 m3 @PHP487 = PHP0.24 M

1,300 m3 @PHP122 =PHP0.159 M

- - 1,500 m3 @ PHP6,100 =PHP9.15 M

73,500 kg @PHP86 =PHP6.31 M

75,000 Bd. Ft. @ PHP52 =PHP3.90 M

PHP19.76 Million

______________________________________________________________________________________________________________________________________________________________________________ Page 7-13

Page 14: Cost Estimate of Hydro Plant 11MW and 16.5MW

RCDG Bridge structure @ Paliuan 30-m. - span

1,900 m3 @ PHP487 =PHP0.93

1,200 m3 @PHP122 =PHP0.146

- - 663 m3 @ PHP6,100 =PHP4.04 M

32,500 kg @PHP86 =PHP2.80 M

33,150 Bd. Ft. @PHP52 =PHP1.72 M

PHP9.64 Million

7.2.8 Gabion Type Slope Protection Works

Quantity Take-Off and Cost Estimate per 50 meter length

Items/Description Unit Qty. Unit Amount

1) Gabion rectangular pcs. 1300 2,000 PHP 3,900,000 cages, 1.0 x 1.0 x 2.0 m. per cage, 2.90 mm. body wire Diameter (dia.) 3.40 mm. selvedge wire dia., 2.20 mm. tie wire dia., 10 x 12 cu.m. mesh size, 400-600 mpa tensile strength with 305 gm/sq.m. zinc coating 2) Mattress, rectangular pcs. 45 4,400 198,000 cages, 2.0 (W), x 0.30

(H) x 6.0 (L) meters, 3.40 mm. wire dia., 2.20 mm. tie wire dia., 10 x 12 cm mesh size, 400-600 mpa tensile/ strength with 305 ga /

sq.,m. zinc coating

3) Stones, graded 0.10 to 0.20 m. cu.m. 2762 480 1,325,760 dia., with minimum density of 2.2 tons per cu.m.

Material Cost = PHP5,423,760 Estimated Labor 30% = 1,627,128

Contingencies (10% of above) = 705,088

Contractor’s Profit (15% of above) = 163,396 Contractor’s Tax (10% of above) = 891,937

Total Cost = 9,811,309 for 50 meters

‘say’ PHP197,000 per meter

Based on results of drilling, the soil/rock formation are classified as 10% belonging to fair and poor mass ratings and the rest on good and very good mass ratings. Hence, the following estimates are arrive at:

Estimated Lengths of ProtectionScheme Surge Tanks

50 metersPower house

150Headrace Line

None for 1B300 for 2B

Total

1B PHP 10 Million (M) PHP 30 M - PHP40 M

2B PHP 10 M PHP 30 PHP 60 M PHP100 M

______________________________________________________________________________________________________________________________________________________________________________ Page 7-14

TOTAL PHP95.47 Million

‘say’ PHP96 Million

Page 15: Cost Estimate of Hydro Plant 11MW and 16.5MW

7.2.9 Electro-Mechanical

Three (3) foreign sources of manufacturing and supply were requested and below are the various quotations.

______________________________________________________________________________________________________________________________________________________________________________ Page 7-15

Page 16: Cost Estimate of Hydro Plant 11MW and 16.5MW

______________________________________________________________________________________________________________________________________________________________________________ Page 7-16

Page 17: Cost Estimate of Hydro Plant 11MW and 16.5MW

______________________________________________________________________________________________________________________________________________________________________________ Page 7-17

Page 18: Cost Estimate of Hydro Plant 11MW and 16.5MW

7.3 Unit Price Analysis

7.3.1 Assumptions and Considerations

The foregoing cost estimates for the feasibility study phase were based on the categories of various work items, to wit:

Labor/Equipment-Intensive Estimates

Unit price analyses was undertaken for work items whose construction materials are not significant component of the costs. The work items are largely labor and/or equipment intensive. This includes clearing and grabbing, excavation in common soils or hard materials, structure backfill, embankment fill, etc.

Daily rates for labor and hourly rental rates for the equipment were assumed to increase by 5% to 10% annually. Indirect cost adds up to 40% that covers wastage, spoilage and other incidental works.

Materials-Intensive Estimates

Direct quantity take-off for work items where the costs of construction materials constitute a significant and substantial contribution to the cost of the particular item of work. This covers weir structure including intake, sluiceway, upstream and downstream protection works and supports, headrace and pipe supports, settling basin and headtank foundations, sloping bank protection works, powerhouse and tailrace, etc.

The component of the foregoing structures apparently consist of massive amount of concrete, reinforcing steel and other hardware. Thus, it is more appropriate to prepare the quantity take-off and bill of materials and determine the pricing based on the current and projected costs of the particular item of construction materials.

Escalation on cost estimates for the materials was assumed from 5% to 10% annually since prices for the past years were drastically increased. It is also assumed that the construction will commence three (3) years from now.

______________________________________________________________________________________________________________________________________________________________________________ Page 7-18

Page 19: Cost Estimate of Hydro Plant 11MW and 16.5MW

Estimates on Specialized Work Items

This section consists of specialized item of work that cannot be done at a local level (i.e. municipal or barangay), thus, the need for contracted or sub-contracted jobs from a particular or distinctive company from Manila, a nearby urban city or even abroad. These work items are fabrication, delivery and installation of penstock, intake screens, sluice gates, turbine and generators, etc.

Gates, Screens and Penstock

Unit cost for flushing gates, regulating gates, screens for intake and head tank, and steel pipes for penstock were calculated per kilogram or ton instead of unit area of each appurtenant. Design, fabrication, availability and delivery and installations vary significantly since this is considered as specialized work item as mentioned above.

Current Unit Costs of Materials

The following were canvassed at Iloilo and Antique outlets:Portland Cement - PhP 173.00 per bagFine Aggregates - 150.00 per cu.m.Coarse Aggregates- 150.00 per cu.m.Rebars # 16 - 200.00 per kg.

# 12 - 150.00 per kg.# 10 - 110.00 per kg.

Form Lumbers - 30.00 per bd. ft.4’ x 8’ x ¼” Plywood- 265.00 per pieceCHB: # 6 9.25 per piece

Labor (Actual and Current Costs in Antique)

Site Engineer - PhP 600.00 per dayForeman - 400.00 per daySkilled - 350.00 per dayLaborer - 300.00 per day

Tunneling Tunneling unit prices were based on past works at Bakun, Kayapa and CVK projects of Sta. Clara International Company, a firm specializing in tunneling construction.

Item Description Unit Unit Cost

1. Clearing and Grubbing m2 14.00

2. Excavation in Hard Soil m2 365.00

3. Endurated Rocks Excavation m3 487.00

4. Excavation in Rocks (by blasting) m3 731.00

5. Excavation in Common Soils m3 80.00

6. Structure Backfill with Compact m3 122.00

7. Embankment Fill m3 100.00

8. Concrete (3000 psi) m3 6,100.00

9. Concrete (2400 psi) m3 5,400.00

10. Rubble / Boulder grouted riprap m3 3,840.00

11. Boulder dry riprap m3 1,518.00

12. Filter Drain m3 2,058.00

13. Subgrade Preparation m2 20.00

14. Gravel Surfacing m3 580.00

15. Reinforcing Steel Bars (RSB) t 86.00

16. Masonry Walls and Partitions (CHB) m2 511.00

17. Fabrication and Installation of Steel Trashrack Assembly t 203,287.00

7.3.2 Summary of Unit Price Analysis

______________________________________________________________________________________________________________________________________________________________________________ Page 7-19

Page 20: Cost Estimate of Hydro Plant 11MW and 16.5MW

Item Description Unit Unit Cost

18. Fabrication and Installation of Steel Penstock ton 96,000.00

19. Fabrication and Installation of Intake Gate and Lifting Assembly ton 327,346.00

20. Fabrication and Installation of Sluice Gate and Lifting Assembly t 292,167.54

21. Steel Awning Windows with Glass Pane m2 2,481.00

22. Hollow Core Panel Door set 6,045.00

23. Steel Door - Accordion Type (3.0 x 3.5 m) set 33,705.00

24. Chainlink Fence and Gates (1.50 m high) m 1,138.00

25. Roofing and Metal Flushing m2 270.00

26. Steel Truss and Accessories ton 41,888.00

27. Tunneling unit cost (see section on tunneling)

Item Description: CLEARING AND GRUBBING

A. Equipment Rate Unit

1 - Bulldozer (D7) PhP 1,604.07 per hr Minor Tools (10% of the above) PhP 160.41 per hr

PhP 1,764.47 per hr

B. Labor

1 - Foreman PhP 80.53 per hr 3 - Laborers PhP 181.18 per hr

PhP 261.71 per hr

C. Unit Rated Capacity: 200 sq.m. / hr

D. Direct Unit Cost = (A + B)/C PhP 10.13 per sq.m.

E. Materials

F. Indirect Cost (40% of D & E) PhP 4.05 per sq.m.

G. Unit Price PhP 14.18 per sq.m.

"say" PhP 14.00 per sq.m.

7.3.3 Details of Unit Prices Derivation

______________________________________________________________________________________________________________________________________________________________________________ Page 7-20

Page 21: Cost Estimate of Hydro Plant 11MW and 16.5MW

Item Description: HARD SOIL EXCAVATION

A. Equipment Rate Unit

1 - Jack Hammer PhP 386.52 per hr 1 - Air Compressor PhP 515.36 per hr

PhP 901.89 per hr

B. Labor

1 - Foreman PhP 80.53 per hr 1 - Laborer PhP 60.39 per hr

PhP 140.92 per hr

C. Unit Rated Capacity: 4 cu.m./hr

D. Direct Unit Cost = (A + B)/C PhP 260.70 per cu.m.

E. Materials

F. Indirect Cost (40% of D & E) PhP 104.28 per cu.m.

G. Unit Price PhP 364.98 per cu.m.

"say" PhP 365.00 per cu.m.

UNIT PRICE ANALYSIS Item Description: ENDURATED ROCK EXCAVATION (MECHANICAL)

A. Equipment Rate Unit

1 - Jack Hammer PhP 386.52 per hr 1 - Air Compressor PhP 515.36 per hr

PhP 901.89 per hr

B. Labor

1 - Foreman PhP 80.53 per hr 1 - Laborer PhP 60.39 per hr

PhP 140.92 per hr

C. Unit Rated Capacity: 3 cu.m./hr

D. Direct Unit Cost = (A + B)/C PhP 347.60 per cu.m.

E. Materials

F. Indirect Cost (40% of D & E) PhP 139.04 per cu.m.

G. Unit Price PhP 486.64 per cu.m.

"say" PhP 487.00 per cu.m.

UNIT PRICE ANALYSIS

______________________________________________________________________________________________________________________________________________________________________________ Page 7-21

Page 22: Cost Estimate of Hydro Plant 11MW and 16.5MW

Item Description: ROCK EXCAVATION (by BLASTING)

A. Equipment Rate Unit

1 - Rock Drill PhP 207.76 per hr 1 - Air Compressor (150 cfm) PhP 515.36 per hr 1 - Backhoe (120 HP) PhP 622.46 per hr Minor Tools (10% of the above) PhP 134.56 per hr

PhP 1,480.14 per hr

B. Labor

1 - Foreman PhP 80.53 per hr 1 - Blaster PhP 80.53 per hr 2 - Laborer PhP 120.79 per hr

281.84 per hr

C. Unit Rated Capacity: 10 cu.m./hr

D. Direct Unit Cost = (A + B)/C PhP 176.20 per cu.m.

E. Materials

1 - kg. Of TNT PhP 225.47 per cu.m. 1 - lot fuse and firing cap PhP 120.79 per cu.m.

PhP 346.26 per cu.m.

F. Indirect Cost (40% of D & E) PhP 208.98 per cu.m.

G. Unit Price PhP 731.44 per cu.m.

"say" PhP 731.00 per cu.m.

UNIT PRICE ANALYSIS

______________________________________________________________________________________________________________________________________________________________________________ Page 7-22

Page 23: Cost Estimate of Hydro Plant 11MW and 16.5MW

Item Description: EXCAVATION IN COMMON SOILS

Note: Disposal of excavated materials assumed @ 1 km radius.

A. Equipment Rate Unit

1 - Backhoe, 1 cu.m. PhP 3,198.47 per hr 1 - Loader, 1.6 cu.m. PhP 230.79 per hr 1 - Dump Truck, 1.6 cu.m. PhP 193.26 per hr

PhP 3,622.52 per hr

B. Labor

1 - Foreman PhP 80.53 per hr 5 - Laborers PhP 301.97 per hr

382.50 per hr

C. Unit Rated Capacity: 70 cu.m./hr

D. Direct Unit Cost = (A + B)/C PhP 57.21 per cu.m.

E. Materials

F. Indirect Cost (40% of D & E) PhP 22.89 per cu.m.

G. Unit Price PhP 80.10 per cu.m.

"say" PhP 80.00 per cu.m.

UNIT PRICE ANALYSIS

Item Description: STRUCTURE BACKFILL

A. Equipment Rate Unit

1/4 - Loader, 1.6 cu.m. PhP 324.52 per hr 1 - Wacker Vibrator PhP 570.12 per hr

PhP 894.64 per hr

B. Labor

1 - Foreman PhP 80.53 per hr 4 - Laborers PhP 241.58 per hr

322.10 per hr

C. Unit Rated Capacity: 14 cu.m./hr

D. Direct Unit Cost = (A + B)/C PhP 86.91 per cu.m.

E. Materials

F. Indirect Cost (40% of D & E) PhP 34.76 per cu.m.

G. Unit Price PhP 121.67 per cu.m.

"say" PhP 122.00 per cu.m.

UNIT PRICE ANALYSIS

______________________________________________________________________________________________________________________________________________________________________________ Page 7-23

Page 24: Cost Estimate of Hydro Plant 11MW and 16.5MW

Item Description: EMBANKMENT FILL

A. Equipment Rate Unit

1/4 - Payloader PhP 324.52 per hr 1 - Vibrating Roller PhP 1,720.02 per hr

PhP 2,044.54 per hr

B. Labor

1 - Foreman PhP 80.53 per hr 4 - Laborers PhP 362.36 per hr

442.89 per hr

C. Unit Rated Capacity: 35 cu.m./hr

D. Direct Unit Cost = (A + B)/C PhP 71.07 per cu.m.

E. Materials

F. Indirect Cost (40% of D & E) PhP 28.43 per cu.m.

G. Unit Price PhP 99.50 per cu.m.

"say" PhP 100.00 per cu.m.

UNIT PRICE ANALYSIS

Item Description: CONCRETE (3,000 PSI)

A. Equipment Rate Unit

1-2 - Bagger Concrete Mixer PhP 120.79 per hr 1 - Wacker Vibrator PhP 80.53 per hr

PhP 201.32 per hr

B. Labor

1 - Foreman PhP 80.53 per hr 4 - Skilled Laborers PhP 281.84 per hr 10 - Laborers PhP 603.94 per hr

966.31 per hr

C. Unit Rated Capacity: 1.50 cu.m./hr

D. Direct Unit Cost = (A + B)/C PhP 778.42 per cu.m.

E. Materials

Cement - 10.5 bags @ PhP 200 PhP 2,100.00 per cu.m. Sand - 0.48 cu.m. @ PhP 300 PhP 144.00 per cu.m. Gravel - 0.90 cu.m. @ PhP 300 PhP 270.00 per cu.m. Formworks - 35 bd.ft. @ PhP 21 PhP 735.00 per cu.m. Wastage and Spoilage (10%) PhP 326.00 per cu.m.

PhP 3,575.00 per cu.m.

F. Indirect Cost (40% of D & E) PhP 1,741.37 per cu.m.

G. Unit Price PhP 6,094.79 per cu.m.

"say" PhP 6,100.00 per cu.m.

UNIT PRICE ANALYSIS

______________________________________________________________________________________________________________________________________________________________________________ Page 7-24

Page 25: Cost Estimate of Hydro Plant 11MW and 16.5MW

Item Description: CONCRETE (2,400 PSI)

A. Equipment Rate Unit

1-2 - Bagger Concrete Mixer PhP 120.79 per hr 1 - Wacker Vibrator PhP 80.53 per hr

PhP 201.32 per hr

B. Labor

1 - Foreman PhP 80.53 per hr 4 - Skilled Laborers PhP 281.84 per hr 10 - Laborers PhP 603.94 per hr

966.31 per hr

C. Unit Rated Capacity: 1.50 cu.m./hr

D. Direct Unit Cost = (A + B)/C PhP 778.42 per cu.m.

E. Materials

Cement - 8 bags @ PhP 200 PhP 1,600.00 per cu.m. Sand - 0.48 cu.m. @ PhP300 PhP 144.00 per cu.m. Gravel - 0.90 cu.m. @ PhP300 PhP 270.00 per cu.m. Formworks - 35 bd.ft. @ PhP 21 PhP 735.00 per cu.m. Wastage and Spoilage (10%) PhP 326.00 per cu.m.

PhP 3,075.00 per cu.m.

F. Indirect Cost (40% of D & E) PhP 1,541.37 per cu.m.

G. Unit Price PhP 5,394.78 per cu.m.

"say" PhP 5,400.00 per cu.m.

UNIT PRICE ANALYSIS

Item Description: BOULDER/RUBBLE GROUTED RIPRAP

A. Equipment Rate Unit

1 - Bagger Concrete Mixer PhP 193.26 per hr Minor Tools (10% of the above) PhP 19.33 per hr

PhP 212.59 per hr

B. Labor

1 - Foreman PhP 80.53 per hr 4 - Skilled Laborers PhP 281.84 per hr 10 - Laborers PhP 603.94 per hr

966.31 per hr

C. Unit Rated Capacity: 1.2 cu.m./hr

D. Direct Unit Cost = (A + B)/C PhP 982.41 per cu.m.

E. Materials

Cement - 5 bags @ PhP 200 PhP 1,000.00 per cu.m. Sand - 1 cu.m. @ PhP 300 PhP 300.00 per cu.m. Gravel - 1 cu.m. @ PhP 300 PhP 300.00 per cu.m. Wastage and Spoilage (10%) PhP 160.00 per cu.m.

PhP 1,760.00 per cu.m.

F. Indirect Cost (40% of D & E) PhP 1,097 per cu.m.

G. Unit Price PhP 3,839.38 per cu.m.

"say" PhP 3,840.00 per cu.m.

UNIT PRICE ANALYSIS

______________________________________________________________________________________________________________________________________________________________________________ Page 7-25

Page 26: Cost Estimate of Hydro Plant 11MW and 16.5MW

Item Description: BOULDER DRY RIPRAP

A. Equipment Rate Unit

Minor Tools PhP 80.53 per hrPhP 80.53 per hr

B. Labor

1 - Foreman PhP 80.53 per hr 4 - Skilled Laborers PhP 281.84 per hr 4 - Laborers PhP 241.58 per hr

PhP 603.95 per hr

C. Unit Rated Capacity: 1 cu.m./hr

D. Direct Unit Cost = (A + B)/C PhP 684.48 per cu.m.

E. Materials

Boulder - 1 cu.m. @ PhP 400 PhP 400.00 per cu.m.

F. Indirect Cost (40% of D & E) PhP 433.79 per cu.m.

G. Unit Price PhP 1,518.27 per cu.m.

"say" PhP 1,518.00 per cu.m.

UNIT PRICE ANALYSIS

Item Description: FILTER DRAIN

A. Equipment Rate Unit

Minor Tools PhP 80.53 per hrPhP 80.53 per hr

B. Labor

1 - Foreman PhP 80.53 per hr 2 - Skilled Laborers PhP 140.92 per hr 6 - Laborers PhP 362.36 per hr

583.81 per hr

C. Unit Rated Capacity: 5 m/hr

D. Direct Unit Cost = (A + B)/C PhP 132.87 per m.

E. Materials

Gravel - 0.5 cu.m./m @ PhP 300 PhP 150.00 per m. Perf. Pipe - 4" dia. @ PhP 750 PhP 750.00 per m. Dis. Pipe - 2" dia. @ PhP 350 PhP 350.00 per m. Wastage and Spoilage (10%) PhP 125.00 per m.

PhP 1,375.00 per m.

F. Indirect Cost (40% of D & E) PhP 603.15 per m.

G. Unit Price PhP 2,057.87 per m.

"say" PhP 2,058.00 per m.

UNIT PRICE ANALYSIS

______________________________________________________________________________________________________________________________________________________________________________ Page 7-26

Page 27: Cost Estimate of Hydro Plant 11MW and 16.5MW

Item Description: SUBGRADE PREPARATION

A. Equipment Rate Unit

1 - Grader PhP 1,567.03 per hr 1/2 - Vibrating Roller PhP 831.02 per hr

PhP 2,398.05 per hr

B. Labor

1 - Foreman PhP 80.53 per hr 6 - Laborers PhP 362.36 per hr

PhP 442.89 per hr

C. Unit Rated Capacity: 200 sq.m./hr

D. Direct Unit Cost = (A + B)/C PhP 14.20 per sq.m.

E. Materials

F. Indirect Cost (40% of D & E) PhP 5.68 per sq.m.

G. Unit Price PhP 19.89 per sq.m.

"say" PhP 20.00 per sq.m.

UNIT PRICE ANALYSIS

Item Description: GRAVEL SURFACING FOR ROADS

A. Equipment Rate Unit

1 - Grader PhP 1,567.03 per hr 4 - Dump Trucks PhP 4,625.38 per hr 1 - Vibrating Roller PhP 1,662.05 per hr

PhP 7,854.46 per hr

B. Labor

1 - Foreman PhP 80.53 per hr 8 - Laborers PhP 483.15 per hr

563.68 per hr

C. Unit Rated Capacity: 100 cu.m./hr

D. Direct Unit Cost = (A + B)/C PhP 84.18 per cu.m.

E. Materials

Gravel - 1 cu.m. @ PhP 300 PhP 300.00 per cu.m. Wastage and Spoilage (10%) PhP 30.00 per cu.m.

PhP 330.00 per cu.m.

F. Indirect Cost (40% of D & E) PhP 165.57 per cu.m.

G. Unit Price PhP 579.77 per cu.m.

"say" PhP 580.00 per cu.m.

UNIT PRICE ANALYSIS

______________________________________________________________________________________________________________________________________________________________________________ Page 7-27

Page 28: Cost Estimate of Hydro Plant 11MW and 16.5MW

Item Description: REINFORCING STEEL BARS

A. Equipment Rate Unit

1 - Bar Cutter PhP 100.66 per hr 1 - Bar Border PhP 201.31 per hr

PhP 301.97 per hr

B. Labor

1 - Foreman PhP 80.53 per hr 4 - Skilled Laborers PhP 281.84 per hr 12 - Laborers PhP 724.73 per hr

1,087.09 per hr

C. Unit Rated Capacity: 100 kg/hr

D. Direct Unit Cost = (A + B)/C PhP 13.89 per kg

E. Materials

RSB - 1 kg @ PhP 40 PhP 40.00 per kg Tie Wires - 0.05 kg @ PhP 60 PhP 3.00 per kg Wastage and Spoilage (5%) PhP 4.30 per kg

PhP 47.30 per kg

F. Indirect Cost (40% of D & E) PhP 24.47 per kg

G. Unit Price PhP 85.66 per kg

"say" PhP 86.00 per kg

UNIT PRICE ANALYSIS

Item Description: MASONRY WALLS AND PARTITIONS (CHB)

A. Equipment Rate Unit

Minor Tools PhP 64.42 per hrPhP 64.42 per hr

B. Labor

1 - Foreman PhP 80.53 per hr 4 - Skilled Laborers PhP 281.84 per hr 8 - Laborers PhP 483.15 per hr

PhP 845.52 per hr

C. Unit Rated Capacity: 6 sq.m./hr

D. Direct Unit Cost = (A + B)/C PhP 151.66 per sq.m.

E. Materials

CHB - 12 pcs. @ PhP 12 PhP 144.00 per sq.m. Mortar - 0.02 cu.m. @ PhP 2,500 PhP 50.00 per sq.m. Wastage and Spoilage (10%) PhP 19.40 per sq.m.

PhP 213.40 per sq.m.

F. Indirect Cost (40% of D & E) PhP 146.02 per sq.m.

G. Unit Price PhP 511.08 per sq.m.

"say" PhP 511.00 per sq.m.

UNIT PRICE ANALYSIS

______________________________________________________________________________________________________________________________________________________________________________ Page 7-28

Page 29: Cost Estimate of Hydro Plant 11MW and 16.5MW

Item Description: FABRICATION AND INSTALLATION

A. Material : Basic price of metal plates, Amount

A.1 Basic cost of metal PhP 25,365.53 plates, angular and roads of A 36 ASTM grade; (assume 350 kg @ PhP 45.00/kg

B. Fabrication 11,500.00

B.1 Cutting, fitting and welding 4,500.00 B.2 Surface preparation and painting 3,000.00 B.3 Testing 4,000.00

C. Installation (Project Site) 6,000.00

C.1 Setting and positioning at supports 2,000.00 C.2 Field welding and joints 2,000.00 C.3 Retouching of damage painted surfaces 2,000.00

D. Freight and handling (allow 5% surch. 1,843.28 to item A & B)

E. Indirect Cost (20% above) 8,941.76

F. Unit Price PhP per ton 203,287.00

OF STEEL TRASHRACK ASSEMBLY

UNIT PRICE ANALYSIS

Item Description: FABRICATION AND INSTALLATION

A. Material : Basic price of metal plates, Amount

A.1 Basic cost of metal PhP 45,000.00 plates, angular and roads of A 36 ASTM grade;@ PhP45.00/Kg

B. Fabrication

B.1 Milling, rolling and welding 17,000.00 B.2 Surface preparation and painting 5,000.00 B.3 Testing 4,000.00

C. Installation

C.1 Setting and positioning at supports 12,000.00 C.2 Field welding and joints 4,000.00 C.3 Retouching of damage painted surfaces 4,000.00

D. Freight and handling (allow 5% surch. 5,000.00 up to site)

E. Unit Price PhP per ton 96,000.00/ton

UNIT PRICE ANALYSIS

OF STEEL PENSTOCK ASSEMBLY

______________________________________________________________________________________________________________________________________________________________________________ Page 7-29

Page 30: Cost Estimate of Hydro Plant 11MW and 16.5MW

ITEM DESCRIPTION: FABRICATION AND INSTALLATION OF INTAKEGATE AND LIFTING ASSEMBLY

A. Materials Amount

A.1 Basic cost of metal PhP 54,354.71 plates, angular, bolts, roads, etc. of A 36 ASTM grade; 750 kg. @ PhP 45.00/kg

A.2 Casting of crank-operated stand incl. 35,000.00 mechanical parts; fittings, gears, oil seal grip, roller, bearing, handwheel, pedestal, etc.

B. Fabrication 43,000.00

B.1 Cutting, fitting and welding 15,000.00 B.2 Machinery and Foundary 15,000.00 B.3 Surface preparation and painting 8,000.00 B.4 Testing 5,000.00

C. Installation: Welding at support, retouch 20,000.00 of damage surface, etc.

D. Freight and Handling 16,403.21 E. Indirect Cost (20% above) 33,751.58

F. Unit Price PhP per ton 327,346.00

UNIT PRICE ANALYSIS

ITEM DESCRIPTION: FABRICATION AND INSTALLATION OF SLUICEGATE AND LIFTING ASSEMBLY

A. Materials Amount

A.1 Basic cost of metal PhP 72,472.95 plates, angular, bolts, roads, etc. of A 36 ASTM grade; 1000 kg. @ PhP45.00/kg

A.2 Casting of crank-operated stand incl. 40,000.00 mechanical parts; fittings, gears, oil seal grip, roller, bearing, handwheel, pedestal, etc.

A.3 Water Rubber Seal 8,000.00

B. Fabrication 43,000.00

B.1 Cutting, fitting and welding 15,000.00 B.2 Machinery and Foundary 15,000.00 B.3 Surface preparation and painting 8,000.00 B.4 Testing 5,000.00

C. Installation: 20,000.00

C.1 Welding at support, retouching of damage surfaces 10,000.00

C.2 Man-hour (5-Skilled Personnel) 10,000.00

D. Freight and Handling 7,500.00 E. Indirect Cost (20% above) 38,194.59

F. Unit Price PhP per ton 292,167.54

UNIT PRICE ANALYSIS

______________________________________________________________________________________________________________________________________________________________________________ Page 7-30

Page 31: Cost Estimate of Hydro Plant 11MW and 16.5MW

UNIT PRICE ANALYSIS

ITEM DESCRIPTION: STEEL AWNING WINDOWS WITH GLASS PANE

A. Equipment P / m2

1-Welding machine to utilize, 1 hr/m PhP 350.00

B. Labor

1 - Capataz @PhP23.00 x 4man-hours = 92.00 1 - Welder @ PhP23.00 x 2man-hours = 46.00 2 - Skilled @ PhP23.00 x 2 man-hours= 184.00

322.00 C. Materials

Steel Frame : 1" angular @ PhP45.00/m. = 45.00 Glass: 3/8" x 1 m2 @ PhP675.00 / m. = 675.00 Mastic Filler: 1/4 Kilo @ PhP280.00 = 280.00 Waste and Incidentals (10% above) = 100.00

1,100.00

D. Indirect Cost (40% A + C) 709

E. Unit Price PhP 2,481.00 / m2

UNIT PRICE ANALYSIS

ITEM DESCRIPTION: HOLLOW CORE PANEL DOOR(1.1 x 2.10 m)

A. Equipment P / m2

Minor Tools (10% labor) PhP 100.00

B. Labor (Fabrication and Installation)

1 - Capataz @PhP23.00 x 16 hrs = 368.00 1 - Carpenter @ PhP23.00 x 16 hrs = 368.00 1 - Laborer @ PhP16.50 x 16 hrs = 264.00

1,000.00 C. Materials

Plywood: 1/2" x 1.0 m2 @ PhP295/m2 = 295.00 Hardwares: (door knob, hinge, nails, etc.) = 800.00 Mailers: 15 bf @ PhP32.00 / bf = 480.00 Jambs: 30 bf @ PhP45 / bf = 1350.00 Waste and Incidentals (10% above) = 292.50

3,217.50

D. Indirect Cost (40% A + C) 1,727.00

E. Unit Price PhP 6,044.50 / set

"say" PhP6,045 / set

______________________________________________________________________________________________________________________________________________________________________________ Page 7-31

Page 32: Cost Estimate of Hydro Plant 11MW and 16.5MW

UNIT PRICE ANALYSIS

ITEM DESCRIPTION: STEEL DOOR - ACCORDION TYPE(3.0 x 3.5 m)

A. Equipment Amount

1- Welding machine to utilize PhP 3,750.00 10- Equipment - hour @ PhP375/hour

B. Labor (Fabrication and Installation)

1 - Capataz @PhP23.00/hr for 10 hrs = 230.00 4 - Laborer @ PhP16.50/hr for 10 hrs = 165.00 1 - Welder @ PhP23.00/hr for 10 hrs = 230.00

625.00 C. Materials

1 - Set (3.0 x 3.5 m) accordion door @ PhP18,000/set = 18,000.00 1 - Set guide rail @ PhP1,700/set = 1,700.00

19,700.00

D. Indirect Cost (40% A + C) 9,630.00

E. Unit Price PhP 33,705.00 / set

UNIT PRICE ANALYSIS

ITEM DESCRIPTION: CHAINLINK FENCE AND GATES(1.5 m. high)

A. Materials Amount

A.1 1.5 m x 1 m2 cyclone wire @ PhP135/m2 Php 135.00 A.2 x 2 x 1 m barbed wire @ PhP18 / m 36.00 A.3 2 x 1 GI Pipe @ PhP70 / m 140.00

311.00B. Fabrication

B.1 4 man-hours / m @ PhP23 / man-hour 92.00 B.2 2 equipment-hour @ PhP70/equipment hour 140.00

232.00

C. Installation

C.1 4 man-hours / m @ PhP23 / man-hour 92.00 C.2 Concrete Pedestal: 0.10 m3 @ PhP1776/m3 177.60

269.60

D. Indirect Cost (40% A + C) 325.04

E. Unit Price PhP 1,137.64 / m.

"say" PhP1,138 / m.

______________________________________________________________________________________________________________________________________________________________________________ Page 7-32

Page 33: Cost Estimate of Hydro Plant 11MW and 16.5MW

UNIT PRICE ANALYSIS

ITEM DESCRIPTION: ROOFING AND METAL FLUSHING

A. Equipment P / Hr

1/4 - Crane PhP 190.50 Minor Tools (10% Labor) 24.74

PhP 215.24

B. Labor

1 - Foreman PhP 25.00 8 - Skilled Laborer 160.00 4 - Laborers 62.40

PhP 247.40

C. Unit Output: 10 m2 / hr P / m2

D. Direct Cost 46.27

E. Materials

1 m2 long span @ PhP140.00 / m2 140.00 Incidentals (5% above) 7.00

147.00

F. Indirect Cost (40% x (D + E) 77.31

G. Unit Price PhP 270.58 / m2

"say" PhP270 / m2

UNIT PRICE ANALYSIS

ITEM DESCRIPTION: STEEL TRUSS AND ACCESSORIESASTM GRADE 270

AmountA. Materials: Basic cost of angulars,sag roads,

plates, etc. : 1 ton @PhP18,000/ton 18,000.00

B. Fabrication and Surface Preparation

B.1 Cutting, fitting and welding: 1 ton PhP 6,500 6,500.00

B.2 Paintings: 1 ton to consume: 4 panels of 2,800.00 red lead @ 1 pale of coal tor expoxy

C. Freight and Handling : PhP3/ton-km x 45 km 1,350.00

D. Installation: 2 equipment hour @ PhP635.00 / hr 1,270.00

E. Indirect Cost (40% A +D) 11,968.00

F. Unit Price PhP 41,888.00 / ton

______________________________________________________________________________________________________________________________________________________________________________ Page 7-33