13

PPRA SERVICES PORTAL :: :: ADMIN LOGIN · 2019. 1. 28. · 9 Ravi 128 Kot Naina Shahdra Bridge The consultancy will proceed in single stage. The consultants are required to examine

  • Upload
    others

  • View
    1

  • Download
    0

Embed Size (px)

Citation preview

Page 1: PPRA SERVICES PORTAL :: :: ADMIN LOGIN · 2019. 1. 28. · 9 Ravi 128 Kot Naina Shahdra Bridge The consultancy will proceed in single stage. The consultants are required to examine
Page 2: PPRA SERVICES PORTAL :: :: ADMIN LOGIN · 2019. 1. 28. · 9 Ravi 128 Kot Naina Shahdra Bridge The consultancy will proceed in single stage. The consultants are required to examine
Page 3: PPRA SERVICES PORTAL :: :: ADMIN LOGIN · 2019. 1. 28. · 9 Ravi 128 Kot Naina Shahdra Bridge The consultancy will proceed in single stage. The consultants are required to examine
Page 4: PPRA SERVICES PORTAL :: :: ADMIN LOGIN · 2019. 1. 28. · 9 Ravi 128 Kot Naina Shahdra Bridge The consultancy will proceed in single stage. The consultants are required to examine

Terms of Reference

CONSULTANCY SERVICES FOR

FEASIBILITY STUDY FOR DESIGN OF RIVER

TRAINING AND FLOOD PROTECTION WORKS IN

PUNJAB, PAKISTAN 1. BACKGROUND

The Province of Punjab experienced heavy loss of life and property due to heavy rainfall

and ensuing devastating floods in various rivers on 11th to 14th September 2014. Many

habitations located along the river banks have become vulnerable and susceptible to losses due to

unprecedented floods and toe erosion. It is therefore proposed to carry out extensive study of the

morphology of the identified rivers together with their hydrological parameters, as precursor to

effective river management.

The Province of Punjab is vulnerable to multiple natural hazards of which flood and flash

flood are important ones. Floods and flash floods, caused by cloudbursts or intense rainfall

events and glacial moraine, are common in Pakistan. These have adverse impact on the life

support strategy of the people of the Province. It is important to note that the habitations around

the rivers contribute significantly towards total agricultural and industrial product value of the

country and any disruption in these areas is sure to be reflected adversely on national growth and

development statistics. Thus, flood control and river management by conducting detailed

feasibility study in this area has vital importance for social and economic development of the

nation. This would ensure timely corrective action so as to minimize future devastation.

2. OBJECTIVE The objective is to study, identify and document areas/stretches where the stream flow is

likely to have adverse physical, environmental, social and economic impact from changing river

morphology, particularly during high discharge caused by episodic events such as flood from

very heavy rainfall or sudden discharge from upstream reservoirs. The study intends to undertake

economic/cost benefit analysis of river training and flood protection works. The study and design

of river training and flood protection works is also intended to provide detailed solutions,

including engineering design and other nonstructural measures, of the various flood control/

mitigation measures and channel improvement measures near habitations along the river course

so as to reduce the impact of the flood disaster on human life and property by taking into account

environmental and social aspects. 3. SCOPE

The purpose of the feasibility study is to identify vulnerable areas (habitation, public or

private infrastructure, agricultural land) where rivers pose threat from morphological changes

that has resulted over a period of time and those from episodic events such as excessive rains,

cloud bursts and glacial phenomena. The consultancy will proceed in single stage to undertake a

detailed assessment around populated and critical vulnerable areas and come up with remediation

measures that can be taken up in due course of time. The consultancy would address the following;

Page 5: PPRA SERVICES PORTAL :: :: ADMIN LOGIN · 2019. 1. 28. · 9 Ravi 128 Kot Naina Shahdra Bridge The consultancy will proceed in single stage. The consultants are required to examine

1. River hydrology and hydraulics to understand impact in the flood plain; effect of episodic

events such as cloudburst, excessive rainfall on the hydraulic conditions of the river; 2. Evaluate flood plain encroachment and impact on river behavior; 3. Evaluate effectiveness of existing river training and flood protection works, recommend flood

resilient solutions to strengthening existing protection works and proposed structural and

nonstructural measures at problematic river reaches by providing design of new structures

with detailed physical and numeric modelling where applicable;

4. Carry out screening and identify social and environmental impacts and propose mitigation

measures for river training and bank protection works. Also prepare required environmental

and social documents/plans for the river training and flood protection works; 5. Carry out economic and cost benefit analysis of river training and flood protection works.

It is proposed to include the rivers and stretches mentioned below:

S.No River Basin River Length (KM) Starting Point End Point

1 Indus 240 Chashma Barrage Taunsa Barrage

2

Indus 102 Ghazighat Bridge Confluence Point

of Indus-Chenab

3

Jhelum 36 Mangla G.T Road Bridge

Jhelum

4

Chenab 45 Marala Barrage Alexandra Bridge

Indus

G.T Road Gujrat

5 Chenab 80 Qadirabad Barrage Talibwala Bridge

6

Chenab 78 Talibwala Bridge Dost Muhammad

Bridge Bhowana

7

Chenab 40 Dost Muhammad Revaz Bridge

Bridge Bhowana Jhang

8 Chenab 163 Trimmu Barrage Shershah Bridge

9 Ravi 128 Kot Naina Shahdra Bridge

The consultancy will proceed in single stage. The consultants are required to examine national

policies, guidelines and standards relevant to the study and to assess the extent to which the study is

in line with these requirements. The river training and flood protection works are to be designed

where applicable, as per Federal Flood Commission (FFC) Criteria and Guidelines. In the absence of

FFC criteria other international codes may be used but shall be specified. Consultancy services shall

be initiated with an Inception Report, describing the Consultant’s understanding of objectives, tasks

and sub -tasks and deliverables, methodology proposed including secondary data availability and

primary data collection strategy, activity schedule and staff schedule, client and stakeholder

consultation process, reporting and review process, and consultant and client responsibilities. Critical

review and agreement on the Inception Report would be crucial to successful progress and

completion of consultancy. The other reports to be submitted by the consultant are described in detail

in the subsequent section on ‘Report and Review’. The

Page 6: PPRA SERVICES PORTAL :: :: ADMIN LOGIN · 2019. 1. 28. · 9 Ravi 128 Kot Naina Shahdra Bridge The consultancy will proceed in single stage. The consultants are required to examine

consultant, in designing the river training and flood protection works, would be expected to

provide the following: 1. Engineering design and solutions for river training and flood protection works which can be

started on vulnerable stretches with detailed physical and numerical model study; 2. Topographical survey drawings and reports; 3. Geotechnical investigations and reports; 4. Hydrological and other site investigation reports; 5. Basic and detailed hydraulic design including design criteria; 6. Detailed designs including detailed project components drawings, general layout drawings;

general civil works drawings; detailed design calculations; detailed structural drawings; design

report and instruction manuals.

7. In line with the World Bank’s policies and guidelines, Site Specific Environmental Impact

Assessment (EIA), Initial Environmental Examination (IEE), Environmental and Social

Management Plan (ESMP), Resettlement Action Plan (RAP) as determined by the existing

environmental and social conditions/impacts of the river training and flood protection works.

8. Economic and cost benefit analysis of river training and flood protection works.

A detailed project report (DPR) on proposed river training and flood protection works would be

ensured through the consultancy period at critical milestones. The Key Stakeholders include

Punjab Irrigation Department, District Administration and Local communities. Other agencies

likely to contribute to feasibility studies include:

a) Irrigation Research Institute, Lahore b) Federal Flood Commission (FFC), Islamabad c) Survey of Pakistan, Islamabad

In the consultation process, the consultants are required to:

Review any consultation that has already taken place with key stakeholders carried out during

project preparation to assess the extent to which their views have been taken up in the proposals

or need to be taken into account specifically with regard to potential impacts. Undertake

structured and un-structured consultation with key stakeholders including public groups as part

of the scoping stage, and to enable consensus on the deliverables.

4. TASKS, SUB-TASKS, DATA REQUIREMENTS & DELIVERABLES 4.1 Task & Sub-Task

Task1. Identification of most vulnerable stretches which are posing or can pose risk to the

habitation and available public and private infrastructures along the different river reaches. Sub Task 1.1 Define criteria for selecting reaches to design river training and bank protection

works. The criteria should clearly define the hazard, exposure, vulnerability and risk assessment

which provide decision-making process by providing information essential to understanding the

nature of the community’s risk. The criteria may be based on: Flood damage, threat to

cities/villages, agricultural/ irrigation fields, lines of communication, public utilities etc.; Bank

erosion posing threat to important towns and other populated areas, roads, railways; Significant

lateral shifting of the river posing threat of outflanking of important structures like bridges,

barrages etc. besides bank erosion. Significant shifting of the river away from the

Barrages/Headworks causing water shortage for irrigation, drinking and industrial use etc.

Page 7: PPRA SERVICES PORTAL :: :: ADMIN LOGIN · 2019. 1. 28. · 9 Ravi 128 Kot Naina Shahdra Bridge The consultancy will proceed in single stage. The consultants are required to examine

Sub Task 1.2 Topographic/X-Sectional Survey of Entire River reaches mentioned in Table-1 at

1 Km interval across high banks of rivers. Sub Task 1.3 Conduct physical model study of entire river reaches as mentioned in Table-1

through a reputable Research Institute in Pakistan and compare the results of Physical model

studies with Numerical modeling.

Sub Task 1.4 Select and show all critical vulnerable areas along the selected reaches of rivers of

Indus, Jhelum, Chenab and Ravi on criteria developed in Sub-Task 1.1 & 1.2, in 1:25,000 scales. Sub Task 1.5 Delineate for each selected reach in 1:10,000 scale map the courses of rivers with

existing major roads, embankments, railway lines, Hydraulic/flood control structures and any

other important specific locations with the help of remote sensing data and hydrographic survey

data; Shifting course of river and identify critical locations and rate of shifting.

Task 2. Provide detailed engineering design for river training and flood protection works in

selected vulnerable stretches. The solutions consist of new proposed protection works along or

across the rivers or could be augmenting existing structures through detailed model study.

Sub Task 2.1 After identification of vulnerable reaches on all Rivers the consultant will provide

site-specific civil engineering design for river training work of those reaches to enable Irrigation

Department to start the construction of river training works on those areas. Sub Task 2.2 Evaluate effectiveness of existing river training and flood protection works along

defined river reaches and recommend flood resilient solutions to strengthening these existing

protection works.

Sub Task 2.3 After identification of vulnerable reaches on all rivers the consultants will also

provide nonstructural mitigation measures for safety of the areas under threat. Task 3. Provide detailed Project Reports (DPRs) for civil engineering works of each selected

vulnerable stretch which can be tender out. Prepare PC-I, Tender documents and BOQs.

Sub Task 3.1 The consultant will provide PC-Is, Detailed Estimates, Bill of Quantities (BOQs)

of all proposed civil engineering works.

Sub Task 3.2 Preparation of tender drawings, technical specifications and other tender documents.

Task 4. In line with the World Bank’s polices and guidelines, provide Site Specific Environmental

Impact Assessment (EIA), Initial Environmental Examination (IEE), Environmental and Social

Management Plan (ESMP), Resettlement Action Plan (RAP) as determined by the existing

environmental and social conditions/impacts of the river training and flood protection works.

Sub Task 4.1 Preparation of environmental and social screening checklists as per World Bank

policies and guidelines

Sub Task 4.2 Carrying out environmental and social impact assessment surveys

Sub Task 4.3 Preparation and submission of environmental and social documents/plans as per

World Bank policies and guidelines

4.2 Data Requirement

Page 8: PPRA SERVICES PORTAL :: :: ADMIN LOGIN · 2019. 1. 28. · 9 Ravi 128 Kot Naina Shahdra Bridge The consultancy will proceed in single stage. The consultants are required to examine

The data requirement would depend primarily on length of existing flood embankments, type and

number of existing river training works, previous river morphological studies, river survey data

to conduct physical and numeric model studies for feasible engineering solution/ river training

and flood protection works for identified vulnerable stretches of rivers. The Guidelines from FFC

may be used to identify the data requirement. While most data may be available from provincial

and federal agencies some primary data would need to be collected, though ground surveys,

temporary river discharge measurements, historic satellite imagery, topographic maps, etc.

Preparation of detail engineering design report for river training and flood protection works in

the vulnerable stretches with all required primary data (topographical maps, satellite imageries,

geological/geophysical/geotechnical maps, hydrological data etc.) that shall contain analysis of

river flow, fluvial geomorphology, channel characteristic, site conditions, and summary.

However, following minimum data is suggested for guidance. Topographical data such as Survey of Pakistan topographical maps of different survey

years, aerial photographs, historic and current satellite imageries etc. River cross-sections up to the highest recorded water level for different years, with

sufficient distance covered for both left and right bank to show unstable earth mass which

may be deposited to river course due to precipitation, at/in: Existing gauge discharge sites (pre-monsoon and post-monsoon).

The reaches affected by bank erosion and/or erratic river behavior. Bathymetric survey

data, velocity profiles, water surface slopes, longitudinal profiles etc.

Daily discharge data for the existing discharge observation sites. Daily gauge data for the existing sites as well as for the study reaches.

Daily sediment load data for the existing sites.

Grain size distribution of the bed material for existing sites as well as for study reaches.

Hydrographic charts in the vicinity of the existing sites and in the study reaches.

Grain size distribution of the suspended load and bed load. Vertical velocity and sediment load distribution at the existing sites.

Hazard, risk and vulnerability of reach and criteria for selection of river training and/or

protection works and the degree of protection to be provided Geological. Geophysical, Geomorphological and geo-technical investigations to support

design

Community profiling and participation prospects in flood risk management.

Deliverables

Map in 1:25,000 scale of each river showing vulnerable reaches, and map of each

selected reach in 1:10,000 scale. Report on hazard exposure, vulnerability, capacity and

risk level of selected reaches and sites. Model study report, PC-I, Detailed Estimates, Tender documents and BOQs for each

proposed scheme, including maps, all drawings, topographic survey data, geotechnical

investigation report and satellite imagery, etc. Completion Report.

Completion Report and Review

Page 9: PPRA SERVICES PORTAL :: :: ADMIN LOGIN · 2019. 1. 28. · 9 Ravi 128 Kot Naina Shahdra Bridge The consultancy will proceed in single stage. The consultants are required to examine

The Client Review would cover technical and progress reports, drawings, computerized design,

DPRs, through respective committees and Task Forces. In view of multiple reports and designs

to be reviewed and cleared more than one Technical committee may be needed.

To be reviewed

By whom Composition of

committee/Task Force

Chaired by the Project Director, Project

Implementation Unit (PIU),

Technical Reports

Technical Review Committee Chief Engineer of

concerned Irrigation Zone

and Director Technical PIU

as members and one co-

opted Member from PMIC. Chaired by the Project Director, Project

Progress Reports

Progress Review Committee Implementation Unit (PIU),

Director Procurement and

Technical as Members from

PIU. Chaired by Project

Design, Drawing, DPRs, Director, Director Technical Review Committee Technical (PIU) and

BOQs, Tender Document Director Procurement (PIU)

as members. Environmental Impact

Chaired by Project Director, Assessment (EIA), Initial Director Technical (PIU) and Environmental Examination Director Environment and (IEE), Environmental and

Technical Review Committee Social Safeguards of (PIU) as Social Management Plan

(ESMP), Resettlement Action members.

Plan (RAP), Economic

analysis and cost benefit

analysis reports

The technical reports to be submitted by the consultant are listed in Section 7, linking these to the

payment schedule. 5.1 Review of Technical Reports

The Technical Reports would be reviewed by a multi-agency team of experts, and in view of the

consultancy schedule, would be reviewed and cleared within two weeks after receipt of each

report. If corrections and further actions are needed, the consultant would submit the amended

report within 4 weeks for review and clearance by the committee.

5.2 Review of progress reports

The progress of feasibility study would be monitored by a Progress Review Committee which

would be chaired by the Project Director, Project Implementation Unit (PIU), and members from

PIU. The committee would review the reports submitted by the consultants and would suggest

Page 10: PPRA SERVICES PORTAL :: :: ADMIN LOGIN · 2019. 1. 28. · 9 Ravi 128 Kot Naina Shahdra Bridge The consultancy will proceed in single stage. The consultants are required to examine

appropriate corrections and measures per the work plan submitted by the consultants. The

consultant will be required to give regular presentations on the progress of work etc in such

meetings. The Consultant shall carry out detailed Hydraulic design and submit requisite copies of

complete detailed design calculations and drawings for vulnerable stretches of the river training

and flood protection works and shall submit to client for first time at least 2 weeks prior to the

date on which such drawings are required to ensure that work is executed in accordance with the

approved program. The client will apprise the consultant in writing of his comments on the

design/ drawing within 2 weeks from its date of submission. The Consultant shall submit revised

design/ drawing as second submission as per the comments of Client, within 2 weeks for issuing

& approving. In case, there is need for further revision (third submission) it shall be completed in

next 2 weeks.

“Approved” to allow work to proceed.

“Approved (withheld)” to allow work to proceed subject to amendments and Conditions.

“Not approved” resubmission required incorporating comments given.

The client may withdraw or modify his approvals as result of subsequent submissions, in case

they contradict the provisions based on which the approval is given. The Consultant shall review

of such designs/drawings without any extra cost. Approval of design/drawings etc. by the client

shall mean checking in principle only and not verifying every dimension and detailed manner.

To enable the Client to appreciate/ understand the observations/ comments, the Consultant shall

submit all the required documents such as drawings, Design calculations, explanatory note

containing adopted design criteria, and loads etc., brief description of methodology used as well

as the results etc.

5.3 Review of Computerized Analysis and Design

Following shall be compiled by the consultant in his submittals for review:

i. Consultant shall use accredited / validated software and the same shall be indicated. ii. Details of figures of Models, wherever applicable. iii. All information as called for in case of design calculations. iv. In case Client asks for validation sample examples calculations of the engineering

software used, Consultant shall furnish the same without extra cost to client.

v. Consultant shall submit printout and softcopies of all pages as appeared in output of the

computer Program without disturbing the output as generated by the program. Consultant

shall also provide all the software used for the designs and drawings.

vi. Comments of the Client shall be delivered to the consultant’s office through E-Mail. The

date of submission of comments through e-mail to the consultant from the Client’s office

shall be considered as the date of delivery. The consultant will submit the comments in

duplicate hard copies and soft copy to the Project Director and will also be required to

give a presentation on the same as & when required. Weekly progress report shall be

discussed with Project Director for further improvement in the future activity schedule. In

order to perform the above activities efficiently, the consultant is required to establish a

well-equipped office having sufficient number of professional experts for carrying out

various data processing/design/design review activities.

5.4 Review of Environmental, Social, Economic Analysis and Cost Benefit Analysis Reports

Page 11: PPRA SERVICES PORTAL :: :: ADMIN LOGIN · 2019. 1. 28. · 9 Ravi 128 Kot Naina Shahdra Bridge The consultancy will proceed in single stage. The consultants are required to examine

The environmental, social, economic analysis and cost benefit analysis reports will be

reviewed by Technical Review Committee. These report will be reviewed and cleared within

two weeks after receipt of each report. If corrections and further actions are needed, the

consultant will submit the amended reports within two weeks for review and clearance by the

committee.

Page 12: PPRA SERVICES PORTAL :: :: ADMIN LOGIN · 2019. 1. 28. · 9 Ravi 128 Kot Naina Shahdra Bridge The consultancy will proceed in single stage. The consultants are required to examine

6. Key Staff

Responsibility

Sr. Key Position Qualification/Experience

No

Master’s degree in Overall responsibility of

hydraulic Engineering/Civil Consultants performance and as

Engineering (Should have authorized representative of the

Bachelor’s degree in Civil firm under the contract to the

Engineering as the basic client. Ensure the availability of

degree). requisite human resources to

Should have at least 20 years’

undertake services as per TORs.

1 Team Leader Responsible for overall quality experience of managing & of the consulting services and

coordinating the activities of reporting. Act as representative

multidisciplinary team. He from consultant’s side for any

should have been associated dispute between the client and

with relevant Project(s) for at consultants during currency of least ten years, at least five

the contract.

years of which should be as

team leader. Master’s degree in Organize and supervise

Hydraulics Engineering topographic surveys and other

(Should have Bachelor’s field investigations required to

degree in Civil Engineering as conduct physical model study

Hydraulic

the basic degree). and for design of river training works. Supervise and ensure

2 Structure

Should have at least 15 years’

follow-up action of physical

Design

experience in design of river model tests and take the lead in

Engineer training and bank protection recommending refinement of the

works. He should have been model to ensure reliable output.

associated with relevant Overall responsible for detailed

Project(s) for at least ten years. design of proposed river training

works and flood embankment. Master’s degree in Collect at least 50 years

Hydrology. (Should have hydrological data, analyze and

Bachelor’s degree in Civil study relationships between

Engineering as the basic rainfall and water run-off by

degree). applying specialist computer

3 Hydrologist Should have at least 10 years’

modelling applications to support resilient design of

experience of hydrological proposed RTW. data collection and analysis of

alluvial rivers. Should have

been done at least one river

morphological study in region. Master’s degree in Identify social and

4 Environmental

Environmental Engineering or environmental issues and

Environmental

Science. constraints in design of new

Specialist

Should have at least Ten years’ river training and bank

experience in Environmental

Page 13: PPRA SERVICES PORTAL :: :: ADMIN LOGIN · 2019. 1. 28. · 9 Ravi 128 Kot Naina Shahdra Bridge The consultancy will proceed in single stage. The consultants are required to examine

Engineering or environmental protection works. Prepare a cost

Science. He should have been effective environmental done EIA, EC Clearances and management and monitoring should have prepared reports plan in study areas under the

for environment clearance/ guide lines of donors. issues preferably in W.B

assisted projects for at least

five years.

Master’s degree in Screen the proposed sub- sociology/social sciences, projects for involuntary should have at least Ten years’ resettlement impacts. Prepare experience in Social Science the inventory of encroachments

Social Safe

and community development on existing flood embankments

projects. He should have been and river training works and

5 Guard associated with different social sites of proposed RTW and

Specialist and community participation embankments. Prepare

Project(s) assisted by W.B for resettlement plan on the basis of

at five years. involuntary resettlement

impacts in accordance with the

Resettlement Framework. Master degree in GIS or Provide technical support to Remote Sensing or identify appropriate data

Geometrics. Five years’ sources, acquisition/retrieval,

experience in application of storage and archiving of

6 RS/GIS

GIS in water sector projects data/imagery (digital),

in handling GIS data layers, processing, interpretation and Specialist attribute data in Arc Map and analysis of remotely senses and

creating GIS reports in River GIS data. Processing of digital

Morphological Studies. imagery and GIS data sets using

image processing software such

as ERDAS image & ENVI. Master degree in Hydraulics Prepare numeric model of entire Engineering/Numerical river reaches using latest Methods in Irrigation software to compare and

7 Modeling

Engineering. Five years’ authenticate the outcomes of

International experience in physical model studies.

Analyst

Numeric Modelling of

Hydraulic/River Training

Structures with its verification

by Physical Models. Master degree in Economics or Conduct survey and collect data

Economist/Risk

MBA Finance. Ten year and prepare economic and risk

8 experience in preparation of analysis for proposed projects on

Analyst economic analysis of large the basis of feasibility study.

scale irrigation projects with

Risk assessment/Analysis.