technical submission section c - part 1 general specifications

TECHNICAL SUBMISSION SECTION C - PART 1 GENERAL SPECIFICATIONS

AA ROM 2015 059 C2 I C1/1 July 2016 Rehabilitation & Maintenance of Roads throughout Qatar, Contract -2/2015

PART 1 - GENERAL SPECIFICATION

GOVERNMENT PUBLISHED SPECIFICATIONS, REGULATIONS, NOTICES AND CIRCULARS

A. The Works shall be executed in accordance with the following State of Qatar Standard

Publications, Specifications, Regulations, Notices and Circulars current at the date of Tender

unless otherwise stated.

(a) The General Conditions of Contract – May 2007 prepared by the Contracts &

Engineering Business Affairs (CEBA), PWA.

(b) The Qatar National Construction Specifications (QCS2014) the 4th Edition prepared by

the Qatar General Organization for Standards and Metrology (QGOSM) issued with Standard No. QS27/2014 dated 4th February 2015 and all subsequent revisions and amendments prior to the date of the announcement inviting Tenderers.

(c) The Code of Practice and Specification for Trench Works/Road Openings in the Highway

prepared by the Ministry of Industry and Public Works., January 1992 with December 2014 amendments and revision.

(d) The Guide for Civil Users of Explosives in Qatar prepared by the Ministry of Public

Works.

(e) The Qatar Survey Manuals prepared by the Urban Planning and Development Authority

(UPDA).

(f) All current PWA regulations concerning the organisation of Tenders and Public Auctions

and all subsequent revisions and amendments.

(g) Work Zone Traffic Management Guide (WZTMG) Revision 1.1, July 2014 and all

subsequent revisions and amendments.

(h) The Regulations for the Installation of Electrical Wiring, Electrical Equipment and Air

Conditioning Equipment, sixth re-issue dated January 1992 as prepared by the Ministry of Electricity and Water, P O Box 41, Doha.

(i) Any current and relevant regulation, notice or circular issued by the PWA (including the previous Ministry of Municipal Affairs & Agriculture, Ministry of Public Works and Ministry of Industry & Public Works) the Qatar General Electricity and Water Corporation (KAHRAMAA), Ooredoo (previously known as Qatar Telecom/Q-tel), the Qatar General Organization for Standards and Metrology, the Supreme Council for the Environment and Natural Reserves or the appropriate local Municipality prior to the date of the letter or advertisement inviting Tenderers.

(j) Any and all applicable local Municipality regulations.

(k) State of Qatar Law No. 6 of 1987 and all subsequent amendments concerning Materials and Equipment from Qatar or other CCASG countries, obtainable from Ministry of Justice, Doha, Qatar.

(l) CESMM3, Civil Engineering Standard Method of Measurement, 3rd Edition (1991)

published for the Institution of Civil Engineers by Thomas Telford Services Ltd., 1 Heron Quay, London, E14 4JD, United Kingdom

(m) State of Qatar Law No. 30 of 2002 and all subsequent amendments concerning “The

Environment and Natural Resources Protection” – Articles 6, 17, 19 & 35, obtainable from Ministry of Justice, Doha, Qatar.

(n) State of Qatar Law No. 32 of 2002 which amended Article 2 of Law No. (1) for the year

1993 concerning the regulations to issue license to level the agricultural lands or beach



sands and all associated rules and regulations issued by the Supreme Council for the Environment and Natural Resources, obtainable from Ministry of Justice, Doha, Qatar.

(o) State of Qatar Law No. 32 of 2005 and all subsequent amendments concerning Traffic in

the State of Qatar obtainable from Ministry of Justice, Doha, Qatar.

(p) The Drainage Affairs (DA), Design Manual (Qatar Sewerage and Drainage).

(q) All current Water Department and Electricity Department of the Qatar General Electricity

and Water Corporation (KAHRAMAA) specifications and all sequent revisions and amendments.

(r) Safety Rules issued by the Department of Electricity Networks.

(s) The Jointing Manual prepared by Electricity Networks Department.

(t) The Qatar Traffic Manual (QTM) and Qatar Highway Design Manual (QHDM)

prepared by the Ministry of Public Works.

(u) Drafting Standards prepared by PWA.

(v) Construction Dewatering Guidelines, March 2014 prepared by PWA.

The successful Tenderers shall maintain a copy of the above documents (a) to (v) on site for Engineer's reference.

B. The Contractor shall be deemed to have his own copy of the Authority specifications,

regulations, notices and circulars referred to in (A) above.

C. These Government Specifications, Regulations, Notices and Circulars are amended and

complemented by "Part 2 - Project Specification" as detailed hereafter.

D. In the case of any ambiguity or discrepancy the provisions of the Project Specification shall

prevail over the provisions of the Government published specifications.

E. The Contractor shall consult the Survey Section of the Ministry of Municipal Affairs and

Agriculture prior to any earth or other works to determine if the work is likely to disturb survey

marks. If Survey Section require a survey mark to be moved the Contractor will be responsible

for recreating the survey mark to an approved design and specification, and for resurveying the

point using survey companies approved by the Survey Section.

F. The Contractor shall be responsible for the protection of the Survey marks, within the

boundaries of the site, for the duration of the contract period, and shall be liable for all costs of

any remedial work required by the Survey Section.

G. On the completion of the works the Survey Section will issue a certificate stating that all survey

marks, whether disturbed or otherwise, by the Contractor have been reinstated or protected to

the satisfaction of the Survey Section.

H. In the event of failure to comply with the requirements of this Clause the Authority, without

prejudice to any other method of recovery, may deduct the costs of any remedial work after the

practical completion date, carried out by Survey Section from any monies in its hands due or

which become due to the Contractor.

I. Where any Standard Publication, Specification, Regulation, Notice, etc or any correspondence refers to a Government Ministry, Department, Division, Section, etc. it will be deemed to be the same as any successor Ministry, Department, Division, Section, etc which has or may subsequently be officially promulgated by the Government of the State of Qatar

J. Upon approval from Engineer’s representative on any road closure for the purpose of carrying

out the works of PWA, the Contractor shall place a sufficient notification to the general public in



local newspapers both in Arabic and English languages at least one (1) week prior to the road

closure. The contents of the notification shall be approved by the Engineer and the extent shall

not be less than a quarter of the standard size page of a reputed local newspaper. In order to

evident the notification the contractor shall submit to the Engineer a copy as appeared on the

newspaper on the same day of the notification.

K. The Contractor shall obtain a photographic and video record showing the progress of the

works in every month, and / or as necessary, in order to provide sufficient visual evidence of

the progress and to record the specialized events features of the works or other matters of

interest in connection with the works or other matters of interest in connection with the works or

their surroundings of the project. Such media documentation shall be submitted to the

Engineer in the form of an accepted media document as a complete package at the completion

of the project.

TECHNICAL SUBMISSION PROJECT SPECIFICATIONS SECTION C CONTENTS

AA - ROM 2015 059 C2 I C2/(Contents)/1 July 2016 Rehabilitation & Maintenance of Roads Throughout Qatar, Contract 2/2015

CONTENTS Page No

1 GENERAL CONDITIONS OF CONTRACT REQUIREMENTS C2/1

1.1 Scope of Work to be carried out C2/1

1.2 The Site and Location of the Works C2/2

1.3 Programme C2/2

1.4 Contract Price C2/2

1.5 Time for Completion C2/2

2 QCS – CONSTRUCTION SPECIFICATION C2/3

SECTION 1 GENERAL C2/4

Part 1 Introduction C2/4

1.2.1 Compliance with Qatar Construction Specification

Part 3 Site Access and Entry on to the site C2/4

3.2.1 Temporary Access Roads

Part 4 Protection of Other Works C2/4

4.3.2 Protection of Survey Control Points

Part 5 Interference C2/5

5.2.3 Existing Roads

Part 7 Submittals C2/5

7.7.1 General

7.9.1 General

7.9.2 Pre-Construction Photographs

7.9.3 Monthly Photographs

7.10.2 As-Built Record Drawings

7.10.3 As-Built Survey Drawings

Additional Clauses

7.10.4 Data Delivery

7.14.1 General

7.15.1 Measurement of Quantities

Part 9 Materials C2/9

9.1.4 Quality of Materials

9.3.1 General

Additional Clauses

9.3.2 In situ Testing and Nuclear Density Measuring Devices

Part 10 Health and Safety C2/11

10.2.1 Safety Plan

Part 11 Engineer's Site Facilities

11.2.2 Type 1 Offices C2/11

11.2.3 Type 2 Offices

11.3.4 Telephone

11.4.2 Computers and Printers

11.4.3 Photocopier

11.4.4 Measuring and Recording Equipment

TECHNICAL SUBMISSION PROJECT SPECIFICATIONS SECTION C CONTENTS

AA - ROM 2015 059 C2 I C2/(Contents)/2 July 2016 Rehabilitation & Maintenance of Roads Throughout Qatar, Contract 2/2015

11.4.7 Telephone and Facsimile Machines

11.4.8 Site Vehicles

11.5.1 Assistance to the Engineer

11.5.2 Contract Administration

Part 15 Temporary Controls C2/12

15.2.4 Nuisance and Trespass

15.2.7 Environmental Protection

Part 16 Temporary Traffic Diversion C2/12

16.2.2 Maintenance of Traffic Flow

Part 17 Project Co-ordination C2/13

17.1.2 Responsibility

17.2.5 Liaison with the Public Utility Authorities and other Contractors

Part 19 Regulatory Requirements C2/14

19.1.1 Scope

19.1.2 Co-operation at Site Level

SECTION 6 QCS – ROAD WORKS C2/15

2.10 Removal or Treatment to Buried Utilities

3.1.4 Submittals

3.1.5 Quality Assurance

3.7 Structure Excavations & Filling

11.3.4 Qatar Petroleum and Qatar Gas

14.3.5 Drainage Department, Storm Water and Ground Water

14.3 Extending Pipelines

16 Miscellaneous

TECHNICAL SUBMISSION SECTION C - PART 2 PROJECT SPECIFICATIONS

AA - ROM 2015 059 C2 I C2/1 July 2016 Rehabilitation & Maintenance of Roads throughout Qatar, Contract -2/2015

PART 2 - PROJECT SPECIFICATION

1. GENERAL CONDITIONS AND CONTRACT REQUIREMENTS

1.1 SCOPE OF WORK TO BE CARRIED OUT

(1) The following is a general outline of the scope of work, however the full scope and extent of the works forming the contract is based on the Bill of Quantities of this Tender document. Quantities entered into the Bill of Quantities are a genuine pre-estimate by the Engineer of quantities that may be expected to result from the contract.

(2) The whole works is subject to re-measurement in accordance with Sub-Clauses 55.1

and 55.2 of the Particular Conditions of Contract. Accordingly the contractor’s tendered

contract sum shall be adjusted based on the re-measurement of actual work carried

out in accordance with the Bills of Quantities Rates. In addition, Sub-Clause 56.1 is

amended to facilitate this Sub-Clause.

(3) The Works shall comprise maintenance works of a general nature to ensure the safe movement of both vehicular and pedestrian traffic on all roads throughout the State of Qatar. The Contractor shall mobilize Truck Mounted Attenuators (TMA) within one month from the commencement date.

(4) Introducing new technology and innovation in Roads Maintenance (OPTIONAL)

The Tenderer will look at technology and innovative processes, equipment and

materials that are currently in practice internationally and will bring added benefits when incorporated and implemented under the scope of this contract.

Examples of new technology may include latest type of equipment, goods and

services that are used in the maintenance and repair of roads and highways and in particular: Pothole and Patch Repair Products & Systems

Road Repair & Refurbishment Products including specialist resins, primers, curing and bonding agents

Specialist Aggregates

Hot and Cold Pour Bituminous Emulsions

Hot and Cold Surfacing Macadam

Fast Setting Mortars including Manhole and Ironwork bedding mortars

Infrared Road Repair Systems

Crack Repair Systems

Anti-Skid Agents

Line Marking Paints and Application Equipment

Manhole Cover Lifters

Asphalt Hot Boxes and Duvets

Acoustic Panels

Crash Barriers

Air, Hydraulic and Diesel Powered Breaking and Digging Equipment

Compaction Equipment including Rollers and Rammers

Diamond Cutting and Drilling Equipment

Ground Stabilising Products

Geotextiles



Surveying Equipment

Test Equipment including ground testing and material testing

Road Lighting including Works Lighting

Traffic Signs and Signaling

Recycling Equipment and Processes

Bedding Mortars

Note: The above is not a full and complete list, it is for the tenderer’s information. Any other types of equipment, goods and services which are not listed above and used or adopted in Qatar that the tenderer wishes to include in his tender will be considered in the technical evaluation.

1.2 THE SITE AND LOCATION OF THE WORKS

(1) The Works are to be carried out on Major and Minor Roads throughout the State of Qatar Area.

(2) The Contractor shall make a record to be agreed with the Engineer’s Representative of the condition of the Site and Works locations immediately before commencing each Work Package for the purpose of constructing the Works.

1.3 PROGRAMME

The Contractor shall in consultation with the Engineer's Representative prepare a detailed programme of work for the Project.

1.4 CONTRACT PRICE

(1) This contract is to include the whole of the Works which are described in or implied by the Contract documents. All matters omitted from the documents which may be inferred to be obviously necessary for the efficiency, stability or completion of the Works shall be deemed to be included in the Contract Price.

(2) The whole works is subject to re-measurement in accordance with Sub-Clauses 55.1 and 55.2 of the Particular Conditions of Contract. Accordingly the contractor’s tendered contract sum shall be adjusted based on the re-measurement of actual work carried out in accordance with the Bills of Quantities Rates. In addition, Sub-Clause 56.1 is amended to facilitate this Sub-Clause.

(3) Other than the above, the Contract Price shall not be adjusted or altered in any way whatsoever except in accordance with the express provisions hereof and the Conditions of Contract.

1.5 TIME FOR COMPLETION

The indicative Time for the completion of whole of the Works is 730 days and shall have from the date of the Engineer's written order to commence the Works and shall have a maintenance period of 400 days.

However, during this period, considering the open nature of certain tasks in the scope of the work, the Engineer shall from time to time assign to the Contractor specific work targets for works within the scope as described above. These work tasks will be issued as Site Instructions or Work Orders.

Both parties shall agree to a reasonable time period for the completion of each of such assigned works separately within the contract period. In case of disagreements with the



Contractor for a reasonable completion period for such an assigned work the period will be decided by the Engineer in accordance with the following formula:

Duration for assigned work = Contract Duration

x Cost of the Assigned Work Contract Amount

The Contractor shall submit a pre-estimate for the works based on the contract rates in order to determine the period for each assigned work. The instructed period can be revised if required after confirmation of final work measurements by the engineer to conclude a revised completion period of each of such assigned works for further actions and imposing penalties for any delays if any, as described below.

1.5.1 Failure to complete each of the assigned work as described above and within the agreed / instructed time period;

OR

1.5.2 If the Contractor fails to comply with the requirements of the Maintenance Service or a written or any instruction by the Engineer;

Failure to complete each of such assigned work within the agreed / instructed time period or in case of failure to attend any instructed work within the scope as described above, the penalties shall be imposed as mentioned on Appendix A, Form of Tender.

2. CONSTRUCTION SPECIFICATION

2.1 All work to be executed shall be carried out in accordance with the Qatar Construction Specification (QCS 2014) amplified or amended herein.

2.2 QCS Sections of particular application are (but not necessarily limited to):

Section 1 – General

Section 2 – Building Demolition

Section 5 – Concrete

Section 6 – Road works

Section 8 – Sewerage

Section 12 – Earthworks Related to Buildings

Section 19 – Plumbing Work

Section 21 – Electrical Works

Section 28 – Landscaping

2.3 The following clauses delete, substitute, amend, supplement, or are additional to the clauses in the various sections of QCS:



SECTION 1 – GENERAL

PART 1 – INTRODUCTION 1.2.1 Compliance with Qatar Construction Specification Add new item 2 as follows:

2 Any information in the Contract documents as to the whereabouts of existing services and mains is approximate and for the guidance of the Contractor who shall not be relieved of his obligations under Clause 11 of the Conditions or Part 19 of Section 1 of the Specification.

PART 3 – SITE ACCESS AND ENTRY ON TO THE SITE 3.2.1 Temporary Access Roads Add new Items 3, 4, 5 as follows:

3. The Contractor is required to maintain and provide satisfactory temporary access and traffic flow to, from and within the areas of the works. Temporary traffic signs and lighting for temporary roads and diversions are to be in strict accordance with the requirements of the Qatar Traffic Manual and any additional requirements instructed by the Traffic Police or the Engineer. Details of proposals for any such measures are to be submitted by the Contractor for approval by the Traffic Police and the Engineer unless otherwise instructed. Such Approval shall not relieve the Contractor of any of his duties or responsibilities under the Contract.

4. The Contractor shall maintain at all times pedestrian access to all properties

fronting the roads affected by the works. 5. The Contractor shall at all times during the Contract maintain safe and proper

access to and from adjacent buildings and properties.

PART 4 – PROTECTION OF OTHER WORKS Additional Clause

Renumber Clause 1.4.3.2 as 1.4.3.3 and insert new Clause 1.4.3.2 as follows: 4.3.2 Protection of Survey Control Points

1. The Contractor shall protect all Government Survey Control Points within the limits of the site from any damage whatsoever, during the construction of the Works.

2. All Control points shall be clearly marked on Site by the Contractor and any

necessary temporary protection works shall be installed as directed by the Engineer.



3. Should any Control point be damaged during the course of the works, its replacement and any other costs incurred (such as resurveying) shall be borne by the Contractor.

PART 5 – INTERFERENCE 5.2.3 Existing Roads Add new item 4 as follows:

4. The Contractor shall be held responsible for any damage caused by him, his work people, sub- Contractors or suppliers to public or private roads, paved areas, paths verges, trees, shrubs, fences, boundary walls, gates, signs, drains, ducts and services during the execution of the Contract and shall bear the cost of making good any damage to the entire satisfaction of the local and other authorities and owners. The Contractor shall keep all private roads and paths clean and free from dirt and debris and any obstruction associated with the Works, which would prejudice the safe and unimpeded normal use of the said roads and paths.

PART 7 – SUBMITTALS 7.7.1 General

Renumber item 2 as item 3 and add new item 2 as follows :

2. The Contractor shall also supply to the Engineer, weekly returns as to the number of men and construction plant employed and the nature of the Works on which they were employed.

7.9.1 General Add new items 3 and 4 as follows:

3. The Contractor shall supply to the Engineer, two (2) number photographic albums suitable for mounting all site and progress photographs.

4. The Contractor shall provide a digital camera from a reputed manufacturer for the

exclusive use of the Engineer’s Representative and supply software, batteries, cables, CD’s and floppies / memory cards / sticks etc. as required. The digital camera shall have the latest technical features related to picture resolution, optical zoom, video/audio facility, memory capacity, GPS support etc. of the approved brand. The camera shall be returned to the Contractor at the end of the contract maintenance period.

7.9.2 Pre-Construction Photographs

Delete the text of item 1 and substitute:

1. The Contractor shall arrange to obtain a photographic record of the Site before the start of the works by taking photographs from positions agreed with the Engineer. Two (2) number 125 x 90 mm prints of each photograph and a digital copy on CD shall be handed to the Engineer within 7 days of the photographs being taken.



7.9.3 Monthly Photographs

Add the following text to item 1: 1. For progress photographs, the Contractor shall take ten (10) number colour

photographs every month from positions agreed with the Engineer. Two (2) number 125 x 90 mm prints and a digital copy on CD shall be handed to the Engineer within 7 days of the photographs being taken.

7.10.2 As-Built Record Drawings Add following sentences to item 1:

The Contractor shall also submit two (2) digital copies of As-Built Drawings. The As-Built record Drawings shall be accompanied by operation and maintenance manuals, service literature and list of spare parts where applicable. As-Built record Drawings and other documents shall be submitted and approved before the issuance of Practical Completion Certificate (PCC) by the Engineer. One (1) copy of each drawing and document shall be marked for archival storage.

7.10.3 As-Built Survey Drawings

Re-number Items 2, 3, 4 as 3, 4, 5 and add new item 2 as follows: 2. Where a permanent feature has been added, changed or removed the

Contractor shall conduct a topographical survey with an approved survey company as described in item 1 of this Clause.

Add the following sentences to renumbered item 4: It is the Contractor's responsibility to ensure that the digital data compiled by the approved survey company is comprehensive and completed. The Contractor shall at all times during construction, maintain a comprehensive record of all setting out details and data: for chainage, offsets, levels and all sub-surface elements, including pipe work, ducts, cables and any other installation required under the Contract. These records shall be verified by the Engineer. The records shall be incorporated into the As-Built survey undertaken by the approved survey company to form a fully comprehensive and complete record of the works. Add the following sentences to renumbered item 5: As-Built Survey Drawings and other documents shall be submitted before, the issuance of Practical Completion Certificate (PCC) by the Engineer. One copy of each drawing and document shall be marked for archival storage

ADDITIONAL CLAUSES

Add new Clause 7.10.4 as follows:

7.10.4 Data Delivery



1. The mapping co-ordinate system (horizontal and vertical control) is based on Qatar National Grid 1995. The following parameters shall be applied for the digital data submittal.

The unit of measurement is the International Metre

Transverse Mercator projection, International (Hayford Spheroid)

Latitude of Origin 240 27’00” North

Longitude of Origin 510 13’00” East

False Easting 200,000

False Northing 300,000

Semi major Axis 6 378 388.000

Semi minor Axis 6 356 911.945

Scale factor at Central Meridian (51 13’ E) 0.999 99

1/f 1/297

e2 0.006 722 670 2. The digital data shall be submitted in the following formats:

a) DXF files for use in Auto CAD shall be ASCII text files. File names should

have a maximum of eight characters plus the three-character extension (DXF).

b) DWG files for use in Auto CAD should have a maximum of eight characters

plus the three-character extension (DWG).

c) A digital Terrain Model, including break lines and contours shall also be supplied in a recognised format: ASCII data files, SDR MAP File, MOSS GENIO file or as otherwise agreed with the Engineer.

3. The scale used shall be one-to-one scale. 4. The precision shall be double precision.

5. Feature accuracy shall be at least 0.01 metres.

6. Each layer shall contain only one feature type. If necessary, text may be added to a separate layer to explain the feature type. Colours and line type of features shall be specified by and not individual entities or blocks. Features shall not be duplicated across layers. The Contractor shall obtain from the Engineer the most current specification detailing colour and line type conventions.

7. Features should not be represented with user defined symbols. The following

representation shall be applied.

1) Polygons must comprise of lines to form closed areas where possible. 2) Line entities must be continuous, not a series of consecutive segments. 3) Arc must be continuous radius, not a series of consecutive segments. 4) Block entities are not allowed. 5) User defined symbols, fonts or line types must not be used on any layer.

8. Layer names should be general descriptions of features (e.g. Road centre-line, kerb, walls, bollards). A list of all layers and associated descriptions shall be provided in the submittal, the list shall be stored in an ASCII text file called: “layers.txt”. Layer name should have up to 16 characters only and shall be restricted to letters and digits with the first character of the name being a letter.



Names shall not contain special characters such as : $, -. #. The Contractor shall obtain from the Engineer the current specification detailing naming conventions.

9. Formatted 3½ inch 1.44 Megabyte diskettes. Where the files exceed the capacity

of a single disk the files may be compressed using ZIP files and span disks as approved. The ZIP file should be converted to an executable “exe” file, or the UNZIP programme included to ensure the files are recoverable.

7.14.1 General

Add new items 3, 4 and 5 as follows: 3. The method statements shall be submitted to the Engineer in ample time for

proper consideration to be given to them before the operation described is started and no work is to be done without approval having been obtained in writing. The acceptance by the Engineer of a method statement shall not relieve the Contractor of any of his obligations under the Contract.

4. It is the responsibility the Contractor to ensure that during any work permitted

during night hours, the site is completely illuminated and all safety measures are taken. The Contractor’s employees must wear reflective vests at all times with two (2) different colours distinguishing between the Contractor’s management and labour staff.

5. The Contractor shall state in his Method Statement the safety measures he is

proposing to implement on this project. Sequential arrow boards (engine or solar powered) must be used at all diversion points.

Additional Clause Add new Clause 1.7.15.2 as follows:

7.15.2 Measurement of Quantities

1. The Contractor shall provide the Engineer with all assistance, as and when required for the measurement of all quantities. The Contractor shall be responsible for the preparation and duplication of all calculations, cross-sections and other drawings related to quantities in interim payments. These shall be submitted in draft to the Engineer / Engineer's Representative in sufficient time to enable him to check and agree them before submission for payments.



PART 9 – MATERIALS 9.1.4 Quality of Materials

Add new item 6 as follows:

6. All materials and equipment incorporated in the Works shall be designed and manufactured or constructed to withstand the climatic conditions experienced in Qatar.

9.3.1 General Add new items 4, 5, 6, 7, 8 and 9 as follows:

4. Should the Engineer not inspect any materials or goods at the place of

manufacture, the Contractor shall without cost to the Contract obtain certificates of Test from the supplier of such goods and shall send such Certificates to the Engineer. Such certificates shall certify that the materials or goods concerned have been tested in accordance with the requirements of the Specification and shall include the results of all tests carried out. The Contractor shall provide adequate means of identifying the materials and goods delivered to the site with the corresponding certificates.

5. The Engineer may require samples of materials to be delivered to the Materials

and Laboratory Division MLD for additional tests. The Contractor shall provide attendance as required for Road Affairs (RA) technicians to witness sample collection and testing carried out by the Contractor.

6. All testing for compliance with the specification shall only be carried out using

laboratory equipment, such as compression testing machines and balances, which have been calibrated and certified as complying with the particular relevant calibration standard by a calibration service organization approved by the MLD. Provision of evidence of compliance with this clause shall be as directed from time to time by the MLD.

7. The Contractor shall be responsible for the organization and appointment of an

approved independent testing laboratory to carry out all the testing of materials as required by the Engineer. The Contractor shall supply full details of the testing laboratory he proposes to appoint including facilities, personnel, etc. for the Engineer’s approval within 7 days of the Engineer’s order to commence work on site.

8. All samples and records shall be preserved for as long as the Engineer may

direct and they should be kept and labeled in an orderly fashion. Testing equipment and all samples and records shall be open to inspection by the Engineer or his Representative at all times.



9. The laboratory shall be provided with equipment and trained personnel sufficient for carrying out all the earthworks tests referred to in the Specification. The laboratory shall be capable of carrying out all the relevant tests at the frequency required by the Specification and by the rate of progress required by the Contractor’s approved programme for the Works.

ADDITIONAL CLAUSES

Renumber Clause 1.9.3.2 as 1.9.3.3 and add new Clause 1.9.3.2 as follows:

9.3.2 In-situ Testing and Nuclear Density Measuring Devices

1. No person or company will be permitted to determine in-situ density by means of a nuclear type density measuring device without complying with the following requirements:-

(a) Each device held by any organization shall have a valid Calibration

Certificate issued by the MLD. The validity of any certificates shall not exceed six months.

(b) Calibration Certificates will only be issued for any particular device if

MLD are satisfied that the storage location is known, suitable and safe, and that a suitable and known radiation officer has been appointed by the organization. (Note: general location plan showing the storage location along with a detailed storage location plan is to be provided to MLD together with a letter from the Organization’s radiation officer stating for each particular device that it would normally be stored at the specific location and that if it is to be stored elsewhere at any tine overnight MLD will be so notified in advance to ensure compliance with adequate safe storage requirements.

(c) Only persons holding a valid User Certificate issued by MLD shall be

permitted to operate these devices. Such certificates shall only be issued after the applicant has demonstrated competence in operating the device both technically and safely (Note: MLD will if required undertake training of personnel). The validity of any certificate shall not exceed six months.

(d) During operation of the device the operator and any assistance shall

wear suitable film badges or a personnel radiation warning alarms. Evidence of the organization having these available during the intended validity of a User Certificate shall be required prior to the issue of such User Certificates.

(e) Non-adherence to the above requirements will be reported to the

Head of the Hazardous Materials Committee of the Environmental Department for suitable action.



PART 10 – HEALTH AND SAFETY 10.2.1 Safety Plan

Renumber item 5 as 6 and add new item 5 as follows: 5. The Contractor is required to work in areas where dangerous concentrations

of gases may be present in manholes, trench excavations and the like. It is the Contractor’s responsibility to provide all necessary detection equipment and to ensure that, if toxic or explosive gases are found, adequate measures are taken to protect his staff, workmen and members of the public.

PART 11 – ENGINEER’S SITE FACILITIES 11.2.2 Type 1 Offices

Delete this Sub-Clause entirely. 11.2.3 Type 2 Offices

Delete this Sub-Clause entirely. 11.3.4 Telephone

Delete this Sub-Clause entirely. 11.4.2 Computers and Printers

Delete this Sub-Clause entirely.

11.4.3 Photocopier


11.4.7 Telephone and Facsimile Machines


11.4.8 Site Vehicles


11.5.1 Assistance to the Engineer



Delete this Sub-Clause entirely. 11.5.2 Contract Administration


PART 15 – TEMPORARY CONTROLS

15.2.4 Nuisance and Trespass

Add new item 5 as follows:

6. The Contractor shall be held responsible for and shall indemnify the

Employer against all claims, which may arise out of his failure to comply with provisions of items 1. 2. 3 and 4 of Clause 1.15.2.4

Add new Clause 15.2.7

15.2.7 Environmental protection

1 The Contractor shall comply with all conditions of the Environmental Clearance

issued for the project by the Supreme Council for the Environment and Natural Reserves.

2 The Contractor shall comply with all rules and regulations regarding

environmental protection and pollution control issued by the Supreme Council for the Environment and Natural Reserves.

PART 16 – TEMPORARY TRAFFIC DIVERSION ADDITIONAL CLAUSES

Add new Clause 1.16.2.2 as follows:

16.2.2 Maintenance of Traffic flow

1. The Contractor shall allow for the construction of temporary diversions to permit

all existing traffic movements for the duration of the Contract period. 2. All diversions shall be constructed in accordance with the Qatar Traffic Manual

“Traffic Control at Roadworks” booklet and the Qatar Highway Design Manual, and shall be approved prior to the implementation by both the Engineer and Traffic Police. It is the Contractor’s responsibility to ensure that any traffic diversion required is properly signed, demarcated, illuminated, controlled and maintained at all times.

3. Upon the Engineer’s request, the Contractor shall install and commission

temporary traffic signals capable of handling the diverted traffic. 4. Sequential arrow boards operating on a 24-hour basis (engine or solar powered)

must be used at all diversion points.



5. Within the limits of the project where pedestrian traffic is present, all excavated areas, regardless of depth, must be cordoned off by means of wired mesh panels of height no less than 1.8m connected together to form a continuous barrier wall.

PART 17 – PROJECT CO-ORDINATION 17.1.2 Responsibility

Add new item 2 as follows: 2. No major operations shall be commenced or work outside the usual working

hours be carried out without the consent in writing of the Engineer or without full and complete notice also in writing being given to him sufficiently in advance of the time of operation so as to enable him to make such arrangements as he may deem necessary for its inspection.

ADDITIONAL CLAUSES

Add new Clause 1.17.2.5 as follows: 17.2.5 Liaison with the Public Utility Authorities and other Contractors

1. The Contractor shall liaise with all Public Utility Authorities for water, electricity

supply, telephones, etc., and shall:

- Provide Public Utility Authorities with storage areas where applicable.

- Assist in unloading of stores and equipment.

- Ensure that all services or diversions of services are installed under the carriageway and footways before they are surfaced.

- Work out an overall programme for any works to be carried out by Public Utility Authorities and ensure that this programme is maintained:

- Keep Public Utility Authorities informed of the Contractor’s own progress:

- Arrange for supplies of services for temporary accommodation for the duration for the Contract:

- Give the appropriate Public Utility Authority adequate notice in writing, that he intends to install dry ducts so that a representative of the Utility concerned may attend the installation and record the location of the ducts together with the Contractor.

2. The Contractor shall make due allowance for carrying out the works, whilst Public

Utility Authorities are working on the Site, during the Contract period. This due allowance shall include programming of the works to suit the programmes of the Public Utility Authorities.

3. The Contractor shall at all times be responsible for the compliance with these

requirements of his Sub-Contractors. 4. Before final surfacing of any carriageways or footways takes place, the

Contractor is responsible for ascertaining from all Public Utility Authorities that their underground works have been completed. In the event that the Contractor failing to carry out this obligation to the satisfaction of the Engineer and



completed surfacing is subsequently disturbed, the Engineer may instruct the Contractor to carry out work at his own expense.

PART 19 – REGULATORY REQUIREMENTS 19.1.1 Scope

Add to list in paragraph 2

The Supreme Council for the Environment and Natural Reserves.

19.1.2 Co-operation at Site Level

Add following sentence to item 4:

The Contractor shall advise the Public Utility Authorities Agent of any installation not found where shown on the drawings, or found but not shown or found damaged or subsequently damaged.



SECTION 6 – ROAD WORKS: 2.10 Removal or Treatment to Buried Utilities Delete this Clause entirely 3.1.4 Submittals Delete this Sub-Clause and substitute the following:

The Contractor shall submit to the Engineer for approval his proposals for the compaction of each type of material to be used in embankments detailing the type of plant, number of passes and maximum loose depth of layer.

3.1.5 Quality Assurance Delete this Sub-Clause entirely 3.7 Structure Excavations & Filling Delete the following Sub-Clauses :-

a) 3.7.1 General b) 3.7.2 Excavation support c) 3.7.3 Dewatering d) 3.7.4 Excavation for structure e) 3.7.6 Cofferdams f) 3.7.7 Backfilling adjacent to structure

11.3.4 Qatar Petroleum and Qatar Gas Delete this Sub-Clause entirely 14.3.5 Drainage Department, Storm water and Groundwater Delete this Sub-Clause entirely 14.3 Extending Pipe lines Delete this Clause entirely 16 Miscellaneous Delete this Clause entirely.

technical submission section c - part 1 general specifications

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