SECTION C SPECIFICATION

SECTION C

SPECIFICATION

TECHNICAL SUBMISSION SECTION C SPECIFICATION

IA 2016 C 121 G C /Contents May 2016 Construction of Foul Sewers For Various

Catchments Within Doha West (C821)

CONTENTS

Page

PART 1 - GENERAL SPECIFICATION

GOVERNMENT PUBLISHED SPECIFICATION, REGULATIONS, NOTICES AND CIRCULARS

C1/1 – C1/2

PART 2 - PROJECT SPECIFICATION C2/1 – C2/19

TECHNICAL SUBMISSION SECTION C – PART 1 GENERAL SPECIFICATION

IA 2016 C 121 G C1/1 May 2016 Construction of Foul Sewers For Various Catchments Within Doha West (C821)

GOVERNMENT PUBLISHED SPECIFICATION, REGULATIONS, NOTICES AND CIRCULARS

A. The Works shall be executed in accordance with the following latest Government specification, regulations, notices and circulars: (a) The General Conditions of Contract – May 2007 prepared by the Contracts &

Engineering Business Affairs (CEBA), Public Works Authority.

(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 Road Openings in the Highway prepared by the Public Works Authority, 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 Public Works Authority 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 Public Works Authority (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, W14 4JD and all subsequent revisions and amendments.

(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

TECHNICAL SUBMISSION SECTION C – PART 1 GENERAL SPECIFICATION


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 Public Works Authority.

(v) Construction Dewatering Guidelines, March 2014 prepared by Public Works Authority

B. The Contractor shall be deemed to have his own copy of the Authority specification, regulations, notices, and circulars referred to in (a) to (v) above.

C. These Government specifications, regulations, notices and circulars are amended, amplified and complemented by the 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 specification.

E. The Contractor shall contact the Survey Section of the Ministry of Municipal Affairs and Agriculture for prior earthwork or other works to determine if the work is likely to disturb survey marks. If Survey Section require a survey mark to be removed 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 contract period, and shall be liable for all costs of any remedial works required by the Survey Section.

G. On the practical 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 Survey Section.

H. In the event of failure to comply with the requirements of the above Clause, PWA without prejudice to any other rights and privileges and method of recovery, may deduct the cost of any remedial work after the practical completion date, carried out by the Survey Section form any monies due or which may become due to the Contractor.

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

TECHNICAL SUBMISSION SECTION C – Part 2 PROJECT SPECIFICATION

IA 2016 C 121 G C2/Contents(1) May 2016 Construction of Foul Sewers For Various Catchments Within Doha West (821)

CONTENTS PAGE

1.0

1.1

1.2

1.3

1.4

INTRODUCTION

Project Brief

Scope of Works

Time for Completion

Construction Schedule

C2/1

C2/1

C2/2

C2/6

C2/6

PART 2 USE & MAINTENANCE OF THE SITE C2/7

2.4 : CONTRACTOR ‘S WORKING AREAS C2/7

2.4.1 : General C2/7

PART 3 : SITE ACCESS AND ENTRY ONTO SITE C2/7

3.2 : ACCESS ROADS C2/7

3.2.2 : Points of Access to the Works C2/7

PART 7 SUBMITTALS C2/7

7.4 : PROGRAMME C2/7

7.4.1 : Programme of Works C2/7

7.9 : PHOTOGRAPHS C2/8

7.9.3 : Monthly Photographs C2/8

PART 10 HEALTH AND SAFETY C2/8

10.1.8 General C2/8

PART 11

11.4

ENGINEER’S SITE FACILITIES

PROVISION OF EQUIPMENT AND SUPPLIES

C2/10

C2/10

11.4.2 Computers & Printers/Scanners C2/10

11.4.8

PART 13

Engineering Plotters & Digital Cameras

SETTING OUT OF THE WORKS

C2/11

C2/11

13.2 SITE INFORMATION AND INSPECTION C2/11

13.2.1 Site Information C2/11


IA 2016 C 121 G C2/Contents(2) May 2016 Construction of Foul Sewers For Various Catchments Within Doha West (821)

PART 16 TRAFFIC DIVERSIONS C2/12

16.1 : GENERAL C2/12

16.1.6 : Notice to Public on Road Closures C2/12

16.2 : TEMPORARY TRAFFIC DIVERSIONS C2/12

16.2.2 : Maintenance of Traffic Flow C2/12

16.2.3 : Other Activities to be Carried Out by the Contractor C2/13

16.3 : TRAFFIC MANAGEMENT PLAN C2/15

16.3.1 : Main Objectives C2/15

16.3.2 : Provisions for Pedestrians C2/16

16.3.3 : Traffic Signs for Roadworks C2/16

16.3.4 : Temporary Diversion Routes C2/16

PART 19 : REGULATORY REQUIREMENTS C2/17

19.1 : GENERAL C2/17

19.1.1 : Scope C2/17

19.12 : SPECIAL REQUIREMENTS OF UTILITY OWNERS / AUTHORITIES C2/17

19.12.1 : Overview C2/17

19.12.2 : Qatar Petroleum (QP) Requirements C2/17

19.12.3 : Qatar General Electricity and Water Corporation

(QGE&WC)/(KAHRAMAA) - Electric Requirements

C2/18

19.12.4 : Qatar Telecommunication (Q-Tel) C2/19

19.12.5 : Ministry of the Environment (MOE) C2/19



1 INTRODUCTION

1.1. Project Brief:

The Project area consists of the following three (03) LR&DP sewerage sub-

catchments as shown in the Tender Drawings.

Al Wajba East Sub-Catchment (DW016-P2)

Muaither North Sub-Catchment (DW039)

Eastern Side of the Muaither West Sub-Catchment ( DW 002-P2)

The sewerage sub-catchments are briefly describes as follows:-

DW016-P2 : Al Wajba East Catchment- Located within Zone 53 of the

Municipality of Al Rayyan, and measures 477 hectares in extend. DW016-P2

catchment is largely developed and comprises low rise residential areas,

educational and commercial facilities. This catchment is currently being served

by the existing gravity foul sewer network (PS 12 A, PS 34 & PS 37 sewerage

catchments).

The existing foul sewer network covers more than 80% of the catchment area.

New sewers & Property Connections will be provided under this Contract to

cater for the un-serviced areas and to replace the existing undersized sewers.

DW039 : Muaither North Catchment– Located within Zone 53 of the

Municipality of Al Rayyan, and measures 391 hectares in extend. The DW039

catchment is largely developed, and comprises predominantly residential

areas, supported by religious, educational and commercial facilities.

This catchment is currently being served by existing gravity foul sewer network

(PS37 & PS 32A sewerage Catchments). New sewers & Property

Connections will be provided under this Contract to cater for the un-serviced

areas and to replace the existing undersized sewers.



DW002-P2 : Eastern Side of the Muaither West Catchment– Located within

Zone 55 of the Al Rayyan Municipality, and measures approx. 250 hectares in

extend. The Eastern side of the DW002-P2 catchment is largely developed,

and comprises low and medium density residential areas, supported by

religious, educational and commercial facilities.

It has been proposed to develop only the Eastern side of this development,

since the road/platform levels are yet to be levelled/graded. New sewers &

Property Connections will be provided under this Contract to cater for the un-

serviced areas and to replace the existing undersized sewers.

1.2 Scope of Works:

1. Mobilisation, site clearance and setting out work.

2. Obtaining necessary Authority approvals prior to the construction & after

completion.

3. Construction of Gravity Sewers and Manholes of various sizes and depth by cut &

cover method.

4. Carryout property survey and provide property connections for the existing

properties along the newly constructed sewers.

5. Demolish/backfill the existing septic tanks, where house connection is provided.

6. Integrating existing sewer network with proposed network.

7. Over-pumping, temporary utility diversion, traffic diversion, as necessary.

8. Reinstating road surface/pavements.

9. Preparation of as-built drawings.

10. Any other relevant work which are deemed necessary for the successful

completion of the project.

11. Testing & Handing over the completed works to PWA.

12. Project close out.



FIG 1 : LOCATION PLAN & CATCHMENT BOUNDARIES



The Project area consists of the following three (03) LR&DP Project Catchments as

shown in Fig 1.

Al Wajba East Sub-Catchment (DW016-P2)

Muaither North Sub-Catchment (DW039)

Muaither West Sub-Catchment ( DW 002-P2)

The above catchments are mostly developed (80% -90%) and currently being served by

the existing foul sewer networks connected to the PS 37, PS 34, PS 32/1 & PS 32A.

There are pockets of areas within these catchments, where there are no connected

sewerage services available; and also some of the existing sewers are

undersized/surcharging.

The main objectives of this Project are as follows:-

(a) Construct new foul sewers where there are no connected foul sewer services

available.

(b) Integrate the new sewers with the existing foul sewer network, which may require

upgrading of the existing sewers.

(c) Upgrade the existing undersized/surcharging sewers.

(d) Provide House Connection along the newly constructed sewers.

The detailed design of the foul sewer network, topo survey, SI works & the HC Survey

for the above sub-catchments were carried out under the LR&DP Project # DW 016-P2, #

DW 039 & # DW002-P2.

The sewerage sub-catchments are briefly described as follows:-

1. DW016-P2 : Al Wajba East Catchment- Located within Zone 53 of the Municipality

of Al Rayyan, and measures 477 hectares in extend. DW016-P2 catchment is largely

developed and comprises low rise residential areas, educational and commercial

facilities. This catchment is currently being served by the existing gravity foul sewer

network (PS 12 A, PS 34 & PS 37 sewerage catchments).



2. DW039 : Muaither North Catchment– Located within Zone 53 of the Municipality of

Al Rayyan, and measures 391 hectares in extend. The DW039 catchment is largely

developed, and comprises predominantly residential areas, supported by religious,

educational and commercial facilities. This catchment is currently being served by

existing gravity foul sewer network (PS37 & PS 32A sewerage Catchments).

3. DW002-P2 : Muaither West Catchment– Located within Zone 55 of the Al Rayyan

Municipality and measures 400 hectares in extend. The Eastern side of the DW002-

P2 catchment is largely developed, and comprises low and medium density

residential area, supported by religious, educational and commercial facilities. This

catchment is currently being served by existing gravity foul sewer network (PS 32A

sewerage Catchments). It has been proposed to develop only the Eastern side of this

development (approx. 250 Ha), since platform & road levels are yet to be finalized.

The Project Scope shall include, but not limited to the Construction & Completion of the

following works:-

Approx. 12 k.m length of Foul Sewers (pipe size 200 mm to 400 mm) by open cut

method.

Approx. 271 Nos Sewer Manholes.

Approx. 300 House Connections.



1.3 TIME FOR COMPLETION

The Contractor shall complete these works within Seven Hundred & Thirty (730)

Calendar Days from the Commencement Date (CD) of the Contract as follows:

Key

Stage

Description Of Works

Time For Completion

Start date (started

in no. of days

from

Commencement

Date (CD)

Completion date

(started in no. of days

from Commencement

Date (CD)

A Mobilisation, Setting out &

Approvals (RO Permit etc) CD CD+ 30 Days

B Construction of the Foul

Sewer Network CD+30 Days CD+ 700 Days

C Testing, Handing Over &

Project Close-out CD+670 Days CD+ 730 Days

1.4 CONSTRUCTION SCHEDULE ( CONTRACT PERIOD : 730 Calendar

Days = 24 MONTHS)

DURATION

(MONTHS)

ITEM DESCRIPTION MONT

HS

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

A Mob & Setting Out 1

B Construction 22

C Testing & H/Over. 2



SECTION 1 – GENERAL

This project is to be performed in accordance with QCS 2014 specification and Public Works Authority Standards. The following clauses delete, amend, supplement, or are additional to, clauses in the QCS2014 Section 1:

PART 2 – USE AND MAINTENANCE OF THE SITE

Add the following clause to QCS Section 1 Part 2

2.4 CONTRACTOR’S WORKING AREAS

2.4.1 General

1. The Contractor shall identify all space for working, fabrication, storage areas (or

any other space) that he requires and shall obtain suitable sites for its working

areas including all necessary permissions, payments and provision of utility

connections.

PART 3 - SITE ACCESS AND ENTRY ONTO SITE

Add the following clause to QCS Section 1 Part 3.2

3.2 ACCESS ROADS

3.2.2 Points of Access to the Works

The Contractor must prepare a plan of Access to the Works and shall be

approved by the Engineer and coordinated and approved with the affected

entities, agencies, and private owners as may be the case.

Part 7 - SUBMITTALS

7.4 PROGRAMME

7.4.1 Program of Works

Under Section 1 Part 7, Clause 7.4.1 sub-clause 1 add the words “using

Prima Vera Project Planner P6”.



7.9 PHOTOGRAPHS

7.9.3 Monthly Photographs

Delete QCS 2014 Section 1 Part 7,Clause 7.9.3 sub-clause 1 & replace with:

1 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 their surroundings of the Project. Such media documentation shall

be submitted to the Client, Engineer, and Engineer’s Representative in the

form of an accepted media documental presentation, as and when required

during the progress of the Works and as a complete package at the

completion of the project. For progress photographs, the Contractor shall take

a minimum of 10 number color photographs every month from positions

agreed with the Engineer. Photographs and a digital copy on CD shall be

handed to the Engineer within 7 days of the photographs being taken.

PART 10 – HEALTH & SAFETY

Add the following new Clause:

10.1.8 General

1 The contractor shall at all times take suitable precautions to ensure the safety of all personnel on Site and of the general public where they may be affected by the construction of the Works.

2 A minimum level of safety equipment shall be issued by the Contractor to all

his workforce and its use shall be enforced by the Contractor. This shall consist of safety boots, safety helmet and, where applicable, overalls, waders, goggles etc or as instructed by the Engineer’s Representative. A full set of such equipment shall be maintained on Site for the exclusive use of the Resident Engineer.

3 In addition to the requirements of Clause 11-4.6 a monthly inspection of lifting

appliances shall be carried out by a competent person employed by the Contractor. Full records of all such inspections and tests shall be kept by the Contractor in an approved form and shall be made available to the Engineer immediately on demand. Copies of monthly inspection reports shall be submitted to the Engineer.



4 Guard rails or barriers shall be erected wherever there is a danger of person being injured in a fall. Warning lights shall be provided during the hours of darkness.

5 All excavations shall be examined regularly and measures taken where

necessary to prevent falls of material, etc. 6 Access scaffolding shall be solidly braced with face of excavation. Ladders

shall be adequately tied of fixed in place and shall extend one metre above the ground.

7 When cutting, sawing or shaving any product, particularly those which may

contain asbestos, the Contractor shall take all necessary precautions to prevent the inhalation or dispersion of dust.

8 All electricity supply cables shall be buried or properly supported and

protected and shall be armored. Flexible cable shall only be allowed for hand lamps and hand held tools and shall not exceed 6 m in length. Industrial type plugs and sockets shall be used. All electrical installations shall be in the charge of a competent person who shall accept full responsibility for its use and any alterations or additions thereto. The name, designation and telephone number of such person shall be prominently displayed close to the main switch or circuit breaker of the installation, and also in the Contractor’s site office.

9 A written report of any accident on Site shall be submitted to the Engineer

within one day of the occurrence. A standard form shall be provided by the Contractor for this purpose.

10 Prior to any erection work being carried out all necessary temporary access

and safety equipment, shall be installed and presented to the Engineer for inspection.

11 Only upon written approval being given by the Engineer may construction

work commence. 12 If the above minimum requirements are not complied with at any time during

the Contract, the Engineer will instruct the Contractor to cease work and remove all labour from the site until such time as the safety precautions are to his satisfaction.

13 Individuals from the Contractor’s workforce who fail to comply with the above

requirements with respect to use of personal safety equipment shall be removed from the site by the Contractor.



PART 11 - ENGINEER’S SITE FACILITIES

11.4 PROVISION OF EQUIPMENT AND SUPPLIES

11.4.2 Computers and Scanners/Printers

Amend the Sub-Clauses as follows:-

1. The Contractor shall provide Eleven (11) Nos of Desktop Computers; One

(1) No of A3 Size Colour Printer (laser type); One (1) No Mono-crome

Printer for the sole use of the Engineer.

4. The Operating System and the Software Requirements shall be as follows:

MS Windows 7 Professional operating system software (including all

drivers) with license shall be installed on all desktop and laptop computers.

Microsoft Office 2010 software with license shall be installed on all desktop

and laptop computers.

AutoCAD 2013 software with license shall be installed on One (1)

computer.

Incremental license(s) of Primavera applications for Primavera Enterprise

(Project Manager), Contract Manager (Expedition) and Primavera Web to

be linked to PWA Database, in accordance with the Technical

Submission –Volume 1: Section E-Part 3 of the Tender Document.

8 The desktop computers shall comply with the following minimum specifications:

Intel i5 (1.86GHz, 1066MHz, 2MB cache)

4GB 667MHz Dual Channel DDR2 SDRAM

1TB (7200rpm) Serial ATA Hard Drive

56k Modem

32X DVD+/-RW Drive

Wireless network adaptor (WiFi)



Wireless keyboard & Mouse

Card reader.

Add the Following Sub-Clause

11.4.8 Engineering Plotter & Digital Cameras

Engineering Plotter The Contractor shall provide One (1) No AO Size Engineering Plotter for the sole use of the Engineer. Digital Cameras The Contractor shall provide Two (2) Nos of Digital Cameras (min 12 Mega Pixels with 16 GB Memory Card each) for the sole use of the Engineer.

The Engineering Plotter & the Digital Cameras shall be returned to the

Contractor at the end of the Contract Period.

PART 13 - SETTING OUT OF THE WORKS

13.2 SITE INFORMATION AND INSPECTION

13.2.1 Site Information

Delete items 1, 2 and 3 and insert the following under to QCS 2014 Section 1 Part 13 clause 13.2.1

1 Before commencing the setting out of the Works the Contractor shall ascertain

the location of all existing underground services that are along the path of the

Works. Where services are located beneath or immediately adjacent to

proposed buildings, structures or pipelines the Contractor shall confirm the

service location, depth and diameter by trial pit. Other technical means such

as ground penetrating radar (GPR) should also be used at the Contractors

option and as applicable to locate utilities.

2 Where connections are to be made to existing pipelines, the Contractor shall

dig trial pits at the point of connection to ascertain the location, depth, and

exact diameter of the existing mains, in sufficient time to confirm, order and

receive the appropriate connection fittings without delaying construction.

3 Any re-work resulting from the Contractors’ failure to locate and identify

services shall be undertaken at the Contractors’ cost.



Part 16- TRAFFIC DIVERSIONS

16.1 GENERAL

Add the following clauses to QCS 2014 Section 1 Part 16 clause 16.1

16.1.6 Notice to Public on Road Closures

1 Upon approval from Engineer’s representative on any road closure for the

purpose of carrying out the Works of Public Works Authority, the Contractor shall

place 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 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.

16.2 TEMPORARY TRAFFIC DIVERSIONS

16.2.2 Maintenance of Traffic Flow

Add the following sub-clauses:

6 In addition to QCS, a set of guidelines has been prepared and included in the

Tender Documents, to be taken into account by the Contractor while preparing the

“Work schedules” in order to minimize the impact on traffic and residents. They

include the following:

Closures must never exceed one block between two intersections and must never occur at the same time on two parallel roads.

Wherever roadside space is available and required to grant vehicular passage

the Contractor must execute minor improvements on side drains, sidewalks, etc.

Excavation works at the street corners shall be conducted ensuring safety and

visibility for turning vehicles. The usual standard conditions for works shall apply. No additional

specifications would be required. Works should be preferably carried out on different fronts to prevent any major

traffic problems.



A close collaboration with the residents should be ensured to prevent any major public outcry.

Road signs shall comply with the standards required by the concerned

authorities; however any special road sign is necessarily subject to their prior approval.

in case of excavation along the parking lanes of main roads, compensation

would be claimed at the prevailing parking rates.

7 Specific requirements are to be observed in special areas, as follows:

Wide roads, such as 64m, 40m and 32m roads:

two traffic lanes to be kept opened at all times

pedestrian access to all roadside buildings/shops to be granted at all times

proper planning for traffic diversion at major junctions should be worked out.

Roads such as 24m, 20 and 16m wide:

At least one traffic lane, minimum 3.0m wide, to be kept opened at all times

partial closure must never exceed 50 m length, unless special circumstances

apply

pedestrian access to all roadside buildings/shops to be granted at all times.

Narrow roads less than 5.0m wide:

total closure must never exceed 50 m length, unless special circumstances

apply

alternative car parking to be provided within walking distance

Pedestrian access to roadside properties to be granted at all times.

Add the following new Clause:

16.2.3 Other Activities to be Carried Out by the Contractor

Sequencing of Construction Contracts:

A Detailed road inventory and traffic information will be included in the Tender Documents, as well as guidelines and specific requirements to be complied with by the Contractor.

It is unlikely that the Traffic Management Report can impose an optimum sequencing of the contracts that would lead to the minimization of traffic impact. That target can only be achieved by fixing clear guidelines to be observed by each contractor in preparing his Work Schedule and, subsequently, to ensure that the Traffic Management Expert will analyze the schedules in depth as explained



below and, in close collaboration with the local authorities, avoid or at least keep to a minimum the interferences among the works in adjacent zones. Preparation of Road Inventory:

Based on the data and measurement that will be carried out in the field, an inventory table, shall be prepared by the Contractor which will include the list of data/information for each uniform segment of relevant roads and streets when a road presents different features along its alignment it shall be broken down into segments of uniform characteristics:

Road names and classification: main routes, municipal streets, etc…

Starting/ending point and length of each road segment of uniform characteristics.

Roadway width, presence of parking lanes and traffic signals etc….

Roadside development: commercial, residential, major traffic generators (public offices, bus terminals, commercial centres, open markets, educational centres, religious buildings, sport complexes etc.)

Traffic directions (one-way, two-way, dead end, divided carriageways), The Contractor shall have full responsibility on the acquisition of all data relevant to all the features of the road network as well as for obtaining all necessary information and for its interpretation.

Traffic Survey

A traffic survey shall be carried out by the Contractor after the award of Contract at

the main junctions of the road network in order to obtain the basic traffic pattern in

the project area. Detailed guidelines shall be prepared to be observed in the

execution of the survey. Based on the results of the survey the Consultant shall

prepare Traffic Diversion analysis.

The counts will be conducted for 12 continuous hours for 3 typical days of the week.

Add the following clauses to QCS Section 1 Part 16 clause 16.3

16.3 TRAFFIC MANAGEMENT PLAN

16.3.1 Main Objectives

The main objectives of traffic control at road works are:

(i) To protect the public and enable them to pass the worksite safely.



(ii) To protect the men working on site.

(iii) To protect the works themselves.

It is the responsibility of the Contractor to carry out the works and to ensure that

the traffic control devices are place and maintained, day and night, throughout

the duration of the works, to the requirements of the traffic control at roadworks

booklet and to satisfaction of the Traffic Police.

The control devices and procedures described must be used at all works,

regardless of their size or duration. It should be noted that these controls and

procedures are minimum requirements and that additional control may be

required at particularly hazardous sites.

The signing associated with roadworks must be instantly recognizable to the

driver and must guide traffic clearly and safely through the length of the works.

The route to be taken by traffic must be just as clear at night or in inclement

weather as it would be in normal daytime conditions.

Restrictions on working hours, or any other special conditions, imposed by the

Public Works Authority or Traffic Police must be strictly observed.

Where the works are within a Security Area, special conditions may be imposed

by the Security Authority.

Where the works are so extensive that a road must be closed to through traffic, a

traffic diversion must be design in conjunction with the Traffic Police. Diversion or

temporary directional signing must be provided, both in advance of the closure

and through the route of the diversion, as described in Section 8 of Traffic

Control at Roadworks booklet.

Where the works obstruct the footway or pavement, alternative routes must be

provided for pedestrians, as instructed in Section 5 of Traffic Control at

Roadworks booklet, to protect them from any hazard.

The use of any of the methods of traffic control suggested above, detailed in later

sections, must be agreed with the Traffic Police at an early stage in the planning

of the works.



16.3.2 Provisions for Pedestrians

All obstructions and excavations on or near the footway must be fenced off and

signed, for the protection of pedestrians.

Where the footway or verge is substantially obstructed, pedestrians must be

provided with a safe route either on the carriageway or behind the works. This

temporary footway must be lit at night, signed throughout with Sign 358

(Pedestrians) and fully protected from passing vehicles.

Temporary footways must have a well maintained, level surface of at least 1.5

meters width and must be kept clear of materials, plant and debris at all times.

16.3.3 Traffic Signs for Road works

As previously stated, signs used at road works must be to the same standards as

permanent signs. The signs are therefore all to be found in the Qatar Traffic

Manual.

Each sign used by the Contractor must have his identity and the name of his

representative clearly marked on the reverse of the sign plate, together with day-

time and night-time telephone numbers which may be used in case of emergency.

On roads where the general traffic speed is greater than 80 km/h, it is

recommended that a temporary speed limit be considered. This must be

discussed with the Traffic Police, Traffic Planning Section, at any early stage.

16.3.4 Temporary Diversion Routes

The contractor shall base his costing on his proposed construction phasing taking

into account the constructability, efficiently of traffic flow and safety aspects of the

proposed phasing and should the Contractor wishes to vary the phasing to suit

the operations then he will be allowed to do so subject to the compliance with the

Traffic Signs and Manual Chapter 8 – Part 1 (2009 Edition) Traffic Safety

Measures & Signs for Roads and Temporary Situations (Highways Agency– UK).



PART 19 - REGULATORY REQUIREMENTS

19.1 GENERAL

19.1.1 Scope

Under QCS 2014 Section 1 Part 19 Clause 19.1.1, sub-clause 2, add; “Department of Antiquities (Qatar Museums Authority)”

Add the following clauses to QCS 2014 Section 1 Part 19

19.12 SPECIAL REQUIREMENTS OF UTILITY OWNERS / AUTHORITIES

19.12.1 Overview

1 It is the Contractors responsibility to liaise with utility owners and ascertain their

current requirements for working in the vicinity of their services.

2 The Contractor shall also comply with the following special requirements of utility

owners, in additional to their other standard requirements, for the constructed

works and method of working adjacent to their utilities. These special

requirements shall be regarded as being over and above other standard

requirements of the various utility companies. The following conditions may be

subject to addition and amendment by the utility owners.

19.12.2 Qatar Petroleum (QP) Requirements

1 Trial pit excavation shall be carried out to determine the location of existing

underground (QP) services.

2 A method statement for the Contractors pipe laying shall be submitted to QP for

review and approval prior to the commencement of excavation.

3 All works shall comply with QP Standard Specification and QCS.

4 Mechanical / hydraulic rock breakers shall not be used within three (3) meters of

QP pipelines.

5 The Contractor shall provide proper temporary supports and shoring for exposing

QP’s pipes.

6 No mechanical excavation (i.e. use of hand-held pneumatic jackhammers) is

permitted within one (1) meter of any underground services. For the use of

handheld pneumatic jackhammers for excavation 1m away from and below QP

Pipelines, QP Senior Operations Supervisor is to be contacted (tel. 4477 4830 or

4477 4246) regarding a permit to work.



7 Excavations over 1.25 meters deep require gas monitoring to IP-OPS-27

(Confined space entry).

8 Extreme care shall be taken at all times during the work to avoid damage to the

pipelines. If any oil/petrochemical/gas leaks or contamination are encountered

during excavation at site, work must stop immediately and the finding must be

reported to TD (Transmission & Distribution) Operation.

9 Prior to exposing gas and oil pipelines, the Contractor shall erect suitable

substantial barriers to prevent any damage to QP pipelines.

10 The Contractor must take all precautionary measures in accordance with QP

Safety and Operating Standards to ensure stability of pipes and to prevent the risk

of damage.

11 Any damage to the pipes’ external protective wrapping caused by the Contractor

will be repaired in accordance with QP procedure at the Contractors cost.

12 The Contractor shall allow access to QP representatives for inspection of

pipelines and to carry out any pipe coating that is required.

13 A permit to work and excavation permit must be obtained for all the work within 15

meters distance from all boundaries of existing QP facilities. The permit can be

obtained through Field Support Department Mesaieed Transmission and

Distribution Department. Twenty four (24) hours notice must be given to prevent

delays.

14 At the time of preparing this tender document, there are no oil and gas line

crossings on this pipeline.

19.12.3 Qatar General Electricity & Water Corporation, (QGE&WC)/(KAHRAMAA) –

Electric Requirements

A. Working Method

1 A safety clearance of 35.0m shall be maintained from existing EHV OHL pylons

(from nearest leg of pylon to the working area).

2 Prior to commencement of works R02 approval & Service Information Sheet (SIS)

approval must be obtained from QGEWC.

B. Equipment

Manufacturers of electrical equipment are required to complete a form confirming

that their equipment complies with QGEWC requirements.



19.12.4 Qatar Telecommunications (Q-Tel.)

A. Working Method

1 Trial holes and a physical survey shall be carried out by the Contractor to locate

the Q-Tel plant.

B. - Equipment

All telecommunications equipment and working methods must comply with Q-Tel

specification requirements. The Contractor will be deemed to have purchased a

current set of Q-Tels specification requirements in order to prepare and price his

tender.

19.12.5 Ministry of Municipality and Environment

The Contractor shall submit an Environmental Monitoring Plan to the Ministry of

Municipality Environment for both construction and operation activities and shall

comply with its requirements. The Plan shall be revised and updated by the

Contractor as necessary to suit changing working conditions.