CONSTRUCTION OF PERIMETER FENCE - COMMERCIAL AND T&D OFFICE COMPOUND, ONVERWAGT

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1 BILL Nr1 - PRELIMINARIES 1.0 PRELIMINARY PARTICULARS CONSTRUCTION OF PERIMETER FENCE - COMMERCIAL 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 tenderer 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 Onverwagt, West Cost Berbice. 1.7 Description of Works The work entails the construction of a new perimeter fence at the Commercial and T&D Office, Onverwagt. The work also includes some painting works. 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. Programme 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 dis-mantling 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 Not Applicable H. Allow a Provisional Sum for the testing of concrete to be incorporated in the Works Prov.Sum 20,000 TEMPORARY WORKS TO SUMMARY - PG 3 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 60,000 (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 50,000 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 50,000 D. Allow for progress photographs, 12 exposures per month. Sum 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 3 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 8 3

4 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. 4

5 BILL Nr. 2 - Day Work Cont' 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 50,000 II Add percentage for overheads and profit. % III Labour Prov Sum 30,000 IV Add percentage for overheads and profit. % V Plant Prov Sum 20,000 VI Add percentage for overheads and profit. % DAY WORK TO MAIN SUMMARY - PG 8 5

6 BILL Nr. 3 MEASURED WORKS 1.0 DEMOLITION WORKS 1.1 Remove chain link mesh from existing fence and cart away as directed by the Engineer. Ly Cut out existing 6" x 6" HW columns and cart away as directed by the Engineer. Nr Remove HW runners and cart away as directed by the Engineer. Ly Remove HW mud board and cart away as directed by the Engineer. Ly 154 DEMOLITION WORKS TO SUMMARY - PG EXCAVATION 2.1 Excavate in open cut for foundation not exceeding 6'-0" deep. Rate to include for disposal of spoil as directed by the Engineer and for keeping excavation dry. Cy Provide place and compact 2" thick sand fill to excavated area. Sy Provide place and compact 2" thick blinding to top of sand fill. Sy 72 EXCAVATION 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' long and 10" x 10" x 8' long rc columns. Cy 2.4 REINFORCEMENT: MILD STEEL BARS PROPERLY SECURED WITH 18 GAUGE BINDING WIRE /2" dia. main bars to foundation. Lbs /8" dia. stirrups at 9" centre's to foundation. Lbs /2" dia. main bars to 6" x 6" columns. Lbs /8" dia main bars to 10" x 10" x 8' high columns as gate post. Lbs 3.7 1/4" dia. stirrups at 8" crs to columns. Lbs 77 FORMWORK TO INSITU CONCRETE 3.8 To foundation. Sy To 6" x 6" and 10" x 10" columns (fair face finish). Sy 49 CONCRETE WORKS TO SUMMARY - PG 8 6

7 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 and sand to walls of fence. S.y 136 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 272 PLASTER WORKS TO SUMMARY - PG METAL WORK Metal work ; etch and two coats zinc chromate primer after fabrication. 6.1 Supply and install 2" dia galvanized pipe with crab welded to base and cast into the foundation and 6" x 6" columns. Ly Supply and weld into position 11/2" dia. galvanized pipe as runners to 2" dia. galvanized pipe. Ly 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 Supply and weld into position 3/4" dia. Steel rods at an angle of 45 degrees to 11/2" dia galvanized pipe runners to act as an intermediate support arm to take razor wire. Ly Supply and weld barb wire 9" apart to form three rows on 11/2" dia galvanized pipe arm. Ly Supply and weld 5' wide x 10 guage chain link mesh to 2" and 1 1/2" dia. galvanized pipe. Ly Supply and install razor wire to 1" barb wire. Rolls 14 METAL WORK TO SUMMARY - PG PAINTING AND DECORATING 7.1 Prime and apply two additional coats of emulsion paint to concrete surfaces. Sy Prime and apply two additional coats of emulsion paint to concrete surfaces. LY Prime and apply two coats of metal paint to runners, columns and arm. Ly 499 PAINTING & DECORATING TO SUMMARY - PG 8 7

8 SUMMARY - BILL Nr. 3 MEASURED WORKS 1.0 DEMOLITION WORKS 2.0 EXCAVATION 3.0 CONCRETE WORKS 4.0 BLOCK WORKS 5.0 PLASTER WORKS 6.0 METAL WORK 7.0 PAINTING AND DECORATING TOTAL MEASURED WORKS TO MAIN SUMMARY MAIN SUMMARY PRELIMINARIES DAY WORKS MEASUREED WORKS TOTAL TO FORM OF TENDER 8