CONSTRUCTION AND REHABILITATION OF FENCE AT GPL'S VERSAILLES COMPOUND

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Megan Austin
6 years ago
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1 BILL Nr1 - PRELIMINARIES 1.0 PRELIMINARY PARTICULARS 1.1 Funding The funding shall be provided by the Guyana Power & light Inc., of 40 Main street, North Cummingsburg, Georgetown. 1.2 Engineer The Engineer shall be the Civil Engineer - Administrative Department, Guyana Power & Light Inc. 1.3 Contract The Bills of Quantities have been prepared in accordance with the General Conditions of contract, Form of Tender and Agreement. The Conditions of contract should be carefully read as such conditions may have a considerable bearing on the tender. 1.4 Quantities The quantities shown in Bill Nr. 3 have been measured net, as fixed in position, and the bidder shall allow in his prices for waste, laps, etc. The quantities given are thus generally not suitable for the ordering of materials. 1.5 Provisional Sum The term 'Provisional Sum' shall mean a sum provided for works or for costs which cannot be entirely foreseen, defined or detailed at the time the tender documents are prepared. Such sums shall be used in whole or in part as directed by the Engineer & shall be deemed to be inclusive of any profit required by the contractor, unless otherwise indicated. 1.6 Description of Site The site of the proposed works is located at Versailles, Region No Description of Works Construction of concrete, chain link mesh and razor wire fence measuring approximately 175in ft. Works also include rehabilitation of a section of the fence that is broken and rehabilitation of a security hut. 1.8 Visiting the Site The Contractor is advised to visit the site of the proposed Works in order to ascertain the prevailing site conditions and to obtain all information necessary for costing and executing the Works. 1

2 BILL Nr1 - PRELIMINARIES 2.0 GENERAL MATTERS Allow for the following General Matters in the Unit Rates of Measured Work. A. Plant and Tools. B. Setting out the works. C. Holiday with pay. D. Transportation of materials and plant. E. Site organization with regards to employment of Foreman-in-Charge, Storekeeper, Cleaner, and Security Guard. F. Lighting and Power. G. Programmed and progress Chart. H. Collection & payment of NIS contributions. 3.0 TEMPORARY WORKS Allow for the following Temporary Works, constructed to the Engineer's satisfaction, and for dismantling and removing from site on completion. A. Toilet & Washing facilities for GPL supervisor and Contractors staff. Sum Not Applicable B. Mass area for workers and barrier to prevent persons from coming into contact with the works. Sum C. Provide storage and workshop facilities Sum D. Provide a suitable furnished site office of size 10' x 10'. Sum Not Applicable E. Provide water for the works Sum F. Provide all scaffolding necessary for the works Sum G. Provide for the protection of all sections of the Works from inclement weather Sum H. Allow a Provisional Sum for the testing of concrete to be incorporated in the Works Prov.Sum 40,000 TEMPORARY WORKS TO SUMMARY - PG 4 2

3 BILL Nr1 - PRELIMINARIES 4.0 OTHER MATTERS A. Allow for the following Insurance's: (1) Contractor's All Risk Insurance The Insurance must be for the entire contract period. (Construction Period + Defects Liability Period) Prov.Sum 50,000 (2) Public Liability Insurance The Insurance must be for the entire contract period. (Construction Period + Defects Liability Period) Prov.Sum 50,000 (3) Employer's Liability Insurance The Insurance must be for the entire contract period. (Construction Period + Defects Liability Period) Prov.Sum 60,000 B. Allow for surety for providing Mobilization Advance. Prov.Sum 50,000 C. Allow for surety for providing Performance Bond. Bond to be valid until the issue of the Final Certificate. Prov.Sum 60,000 D. Allow for progress photographs, 12 exposures per week. Sum Not Applicable E. Allow for clearing the site of all vegetation, and maintaining same during the execution of the project. Sum F. Allow for the removal of construction debris. Sum G. Allow for the safety and health of workers and keep on site an adequate First Aid Kit. Sum OTHER MATTERS TO SUMMARY - PG 4 3

4 SUMMARY Bill NR 1 - PRELIMINARIES 1.0 Preliminary Particulars 2.0 General Matters 3.0 Temporary Works 4.0 Other matters PRELIMINARIES TO MAIN SUMMARY - PG 10 4

5 BILL Nr. 2 - Day Work A. GENERALLY In accordance with the day work clause in the conditions of Contract, where the Engineer orders work to be executed on a day work basis, the Contractor shall be paid for such work under the conditions of the day work schedule. Such payment shall be the sum of the prime cost, 1.2 calculated in accordance with the following "Definition of Prime Cost of Day Work" and the percentage additions to each section of the prime cost at the rates set out hereunder by the contractor, and recorded in the Appendix to the Conditions of Contract. B. DEFINITION OF PRIME COST OF DAY WORK LABOUR I II III IV The amount of wages paid at the rates applicable to work men on day work. The amount of wages paid at the rates applicable to work men engaged on day work and operating mechanical plant and transport and erecting and dismantling other plant. The time of principals, foreman, gangers, and leading hands at the time rates for the trades practiced, when actually working with there hands, unless when previously otherwise authorized. The cost of overtime where specifically ordered or subsequently sanctioned in writing by the Engineer as day work. MATERIALS I II The cost of materials including delivery to site. Materials supplied from the Contractor's stock at current prices plus justifiable charges for handling and delivery to site. PLANT I Use of mechanically operated plant for the time engaged in the work. No allowance mace for idle time. 5

6 BILL Nr. 2 - Day Work Use of scaffolding, staging, trestles, tarpaulins and other nonmechanical plant excluding tools, specifically provided on site for day work operation, for such time as the Engineer considers reasonable. A. OVERHEADS I Overheads for the purpose of the Contractor shall mean the following: Head office charges Site supervision and site charges Time loss due to inclement weather Bonus or other incentive payments All other liabilities and obligations whatsoever II Overheads as define above and profit shall be dealt with by means of a percentage addition to the totals of prime cost in each of the after mentioned sections at the rate stated herein after. B. PRIME COST Including the following sums for works which may be executed as day work. I Materials Prov Sum 100,000 II Add percentage for overheads and profit. % III Labour Prov Sum 100,000 IV Add percentage for overheads and profit. % V Plant Prov Sum 80,000 VI Add percentage for overheads and profit. % DAY WORK TO MAIN SUMMARY - PG 10 6

7 BILL 3 - MEASURED WORKS - FENCE 1.0 DEMOLITION WORKS 1.1 Remove chain link mesh from existing fence and store as directed by the Engineer. Ly Remove existing metal angle post and store as directed by the Engineer. Nr Remove existing mild steel runners and store as directed by the Engineer. Ly Demolish and remove existing curb wall (16" - 24" high) and foundation and dispose of as directed by engineer Ly 60 DEMOLITION WORKS TO SUMMARY - PG EARTH WORKS 2.1 Excavate trench for strip foundation not exceeding 18 inches deep and dispose of materials as directed by engineer Cy Level, ram and compact bottom of excavated trench sy Keeping excavation clear of water generally sum 2.4 Provide, place and compact 6 inch thick white to strip foundation sy Return, fill and ram excavated material around foundation cy 15 EARTH WORKS TO SUMMARY - PG CONCRETE WORKS. Reinforced concrete mix 1:2;4 3/4" max agg., 3000 psi in 28 days 3.1 In foundation 14" wide x 8" deep. Cy In 6" x 6 " x 3' high RC columns. Cy In 10" x 10" x 10' high RC gate columns. Cy 0.75 CONCRETE WORKS CARRIED FORWARD 7

8 CONCRETE WORKS BOUGHT FORWARD REINFORCEMENT: MILD STEEL BARS PROPERLY SECURED WITH 18 GAUGE BINDING WIRE /2" dia. main bars to foundation. Lbs /8" dia. stirrups at 8" centre's to foundation. Lbs /2" dia. main bars to 8" x 8" x 3' high columns. Lbs /4" dia. stirrups at 8" x 8" x 3' high columns Lbs /2" dia main bars to 8" x 8" x 10' high columns as gate post. Lbs /8" dia. stirrups at 8" x 8" x 10' high columns Lbs 30 FORMWORK TO INSITU CONCRETE 3.10 To foundation. Sy To 8" x 8 " columns (fair face finish). Sy To 10" x 10 " columns (fair face finish). Sy 7.5 CONCRETE WORKS TO SUMMARY - PG 10 BILL Nr. 3 MEASURED WORKS 4.0 BLOCK WORKS Hollow Concrete Block, bedded in 1:3 cement & sand mortar 4.1 4" x 8" x 16" H.C.B bedded in 1:3 cement / sand mortar to walls of fence. S.y 60 BLOCK WORKS TO SUMMARY - PG PLASTER WORKS STEEL TROWEL FINISH: 1:3 CEMENT/SAND MIX 5.1 1/2" thick plaster to top of fence not exceeding 5" girth. Ly /2" thick plaster to walls. Sy 120 PLASTER WORKS TO SUMMARY - PG 10 8

9 6.0 METAL WORK Metal work ; etch and two coats zinc chromate primer after fabrication Supply and install 2" dia galvanized pipe with crab welded to base and cast into the columns as shown on drawings. Ly 55 Supply and weld into position 11/2" dia. galvanized pipe as runners to 2" dia. galvanized pipe. Ly 120 Supply and weld into position 2" dia galvanized pipe welded at an angle of 45 degrees to 2" dia. Galvanized pipe to take razor wire. Ly 10 Supply and weld into position 1/2" dia. Steel rods as runners (2 No.) to 2" dia. Galvanized arms and as an intermediate support arm to take razor wire. Ly 120 Supply and install 5' wide x 10 gauge chain link mesh to 2" dia. & 1 1/2" dia. galvanized pipe. Ly Supply and install razor wire to arms Rolls 7 METAL WORK TO SUMMARY - PG PAINTING AND DECORATING 7.1 Prime and apply two additional coats of emulsion paint to block surfaces. Sy Prime and apply two additional coats of emulsion paint to top of fence not exceeding 5" girth LY Prime and apply two coats of metal paint to runners, columns and arm. Ly Prime and apply two coats of metal paint to 1/2" steel rods. Ly 120 PAINTING & DECORATING TO SUMMARY - PG 10 8 REHABILITATION WORKS Provide all materials, labour, plant and equipment required for the rehabilitation of guard hut measuring 4'- 6" x 4' - 6". Provide all materials, labour and plant required for the rehabiliation of the chainlink fence on the norhern side of fence approximately 50ft long. Allow for replacing broken mild steel angle runners and poles REHABILITATION WORKS TO SUMMARY - PG 10 sum Sum 9

10 SUMMARY BILL NR 3 - MEASURED WORKS - FENCE 1.0 DEMOLITION WORKS 2.0 EARTH WORKS 3.0 CONCRETE WORKS 4.0 BLOCK WORKS 5.0 PLASTER WORKS 6.0 METAL WORK 7.0 PAINTING AND DECORATING REHABILITATION WORKS 8.0 TOTAL MEASURED WORKS - FENCE TO MAIN SUMMARY - PG 10 MAIN SUMMARY Bill No Description Total 1 BILL NR 1 - PRELIMINARIES 2 BILL NR 2 - DAY WORKS 3 BILL NR 3 - MEASURED WORKS - FENCE CONTINGENCY 150,000 TOTAL 10

REHABILITATION OF DRIVEWAY AND GROUND FLOOR OF THE SECOND BUILDING AT MIDDLE STREET OFFICE

REHABILITATION OF DRIVEWAY AND GROUND FLOOR OF THE SECOND BUILDING AT MIDDLE STREET OFFICE BILL Nr1 - PRELIMINARIES 1.0 PRELIMINARY PARTICULARS 1.1 Funding The funding shall be provided by the Guyana Power & light Inc., of 40 Main street, North Cummingsburg, Georgetown. 1.2 Engineer The Engineer