minutes of the 9th meeting of the expert advisory group ... · pdf fileminutes of the 9th...

1

Minutes of the 9th Meeting of the Expert Advisory

Group(EAG)held at Ahmedabad on 17th to 19th July, 2012.

The 9th meeting of the Expert Advisory Group (EAG) of the Kalpasar

Project was held under the Chairmanship of Shri B. N. Navalawala,

Chairman EAG & Advisor to Hon’ble CM at Ahmedabad from 17th to

19th July, 2012 in which the following members of the EAG

participated.

EAG Members

(i) Prof. T. S. Murty, Member Member (Chairman SAC)

(ii) Shri P. P. Vora, Member Member

(iii) Mr. Brayan Leyland, Member Member

(iv) Dr. M. S. Patel Member Secretary

Prof. Asit Biswas, Member, EAG could not remain present due to his

pre-occupations.

The following Officers of the Government, international and national

consultants & representatives from the organizations/Institutes

remained present on the day of discussion of respective agenda of

meeting.

I. Government Officers.

1 Shri V. S. Brahambhatt Chief Engineer (Kalpasar-I) and Addl. Secretary

2 Shri U. K. Saravaiya Chief Engineer, (South Gujarat) & Addl. Secretary, NWRWS & K Dept. (On behalf of Secretary (WR), member EAG.)

3 Shri B. M. Rao Director & Chief Engineer, GERI, Vadodara

4 Shri U. S. Chandorikar Chief Engineer (Kalpasar-II) & Addl. Secretary (I/C)

2

5 Shri N. J. Patel Officer on Special Duty (K) 6 Shri K. S. Patel Superintending Engineer

(PIU I, Bhavnagar) 7 Shri A. B. Thakkar Superintending Engineer

(PIU II, Vadodara) 8 Shri K. U. Dave Under Secretary (T),

Kalpasar Department 9 Shri H. M. Shah Executive Engineer (K) 10 Shri D. P. Mody Executive Engineer (K) (I/C) & EE

(PIU.I Bhavnagar) 11 Shri A. K. Patel Executive Engineer, PIU-2,

Vadodara 12 Shri Mahipalsinh Raijada DEE, GMB (On behalf of A.C.S. Port

department & member EAG.)

II Organization/Institute

1 NIOT, Chennai Dr. B. K. Jena, Director, NIOT Shri Venkat Rao, Advisor to NIOT

2 IIT, Delhi /Khadagpur Dr. S. K. Dube, Professor, Prof. P. K. Bhaskaran

3 NGRI, Hyderabad Mr. R. Krishna, Representative NGRI 4 NEERI, Nagpur Dr. J. S. Pandey, Scientist 5 CSMCRI, Bhavanagar. Dr. Kalpanaben Modi, Sr. Dy.

Director, Scientist G Dr. J. Chikara, Scientist F Dr. Ajay Bhatt, Senior Principal Scientist Dr. S. Basha, Senior Scientist Shri. M. T. Shah, Scientist Mr. Jignesh, Tech. Assistant

6 CEPT University, Ahmedabad

Prof. Shashwat Bandopadyay, Dr. Debasis Sarkar, Shri Hiten Desai, Shri.Akalkotkar.

7 RITES, Delhi Shri.R. N. Das, Manager (Traffic) T & E Division Shri. M. K. Sharma, AM, T&E Division

8 GERI, Vadodara Shri. Sanjay Shrivastav, Shri. S. R. Patel, Shri. Khan.

3

III. National & International Consultants

1 Prof. Ioan Nistor Member SAC & international Consultant

2 Dr. Nagendra Kumar Member SAC, Retd. NIOT, Chennai

3 Shri N. Ghosh Member, SAC, Retd. Add. Director

CWPRS

4 Shri R. M. Khatsuriya Member, SAC, Retd. Add. Director,

CWPRS

5 Shri D. N. Deshmukh Retd. Chief Research Officer, CWPRS

6 Shri V. K. Kasliwal Retd. Dy. DG GSI & Geology and Geo.

Technical Investigation

7 Shri D. M. Pancholi Retd. S.E. (Geo), CDO , Geology

8 Shri R. D. Soni Retd. Secretary (N)

9 Dr. T. N. Chaudhary Retd. Assistant Director General,

Indian Council of Agricultural Research,

New Delhi,

10 Dr. B. S. Mathur Retd. Prof. IIT Roorkee, Hydrology

11 Dr. P. Nema Retd. Project Advisor ,EIA /SIA

12 Shri K. D. Rathod Retd. M.S. GPCB, EIA/SIA

13 Shri P. D. Trivedi Retd. S.E., NWRWS&K Deptt.

14 Shri R. K. Mehta Transportation

15 Dr. P. J. Patel Retd. Vice Chanceler, S. P. Uni. Vallabh

Vidyanagar, SIA

16 Shri B. K. Raijada Retd. Deputy Director, Fisheries

17 Shri R. J. Patel Finance &Project management

18 Shri Sharad Raval Retd. Revenue Department, National

Consultant

19 Shri M.N.Bhatt Retd. Superintending Engineer

At the outset, Shri B. N. Navalawala, Chairman of EAG welcomed the

members, invitees and officials and thanked them for sparing the

time for participation in the EAG meeting.

4

2.0 At the outset of the meeting, the EAG discussed in detail

regarding fixing of dates of EAG meeting and need of various

studies for preparation of DPR of Kalpasar Project as under:

I. Now onwards the dates of EAG meeting to be held shall be

finalised by the chairman on the basis of general

convenience of majority of the members, and, for this

purpose, each member will be requested to indicate three

dates/slots of the meeting as per his convenience. The

meeting will be held accordingly.

II. Secretary (K) explained that Prof. Asit Biswas and Prof

Sutmuller both member, EAG prepared strategic paper, as

road map for implementation of Kalpasar project. The

strategic paper also covered an estimate for the

preparation of DPR amounting to Rs. 234 crores. This

strategic paper covered various items like PMDC, GIS,

Regime modeling, Design activities of marine works, site

investigation, irrigation and land reclamation, water

supply, transportation, EIA/SIA, Economical and financial

studies, quality control, capacity building etc. This strategic

paper (road map) was accepted in 4th EAG meeting held in

January 2007. Secretary (K) further explained that

Government of Gujarat, Kalpasar Department has to

obtain EIA/SIA clearance from MoEF, New Delhi. NEERI,

Nagpur premier Central Government institute has prepared

the scoping documents of EIA/SIA of Kalpasar project. To

obtaining environmental clearance and for preparing

bankable project report, various studies related to

Engineering, Environment, Economical, Social, Financial

etc are required. Department has identified 56 such

studies on the basis of strategic papers and EIA/ SIA

mandatory requirement. Each study has been presented

5

time to time to EAG at various stages. Chairman EAG

stated that various studies are taken up with the

knowledge and consent of the EAG. Further the EAG

members are also informed periodically about the progress

in all such studies.

Minutes of Agenda No.1

The minutes of the 8th EAG meeting was confirmed unanimously.


EAG was apprised the Action Taken Report (ATR), prepared by

Kalpasar Department on the decisions taken in the 8th EAG meeting.


Availing the Services of National Consultants/ Experts.

The EAG was apprised by Kalpasar Department regarding

appointment of the National Level Consultants after 8th EAG meeting

in accordance with Government of Gujarat’s G.R. dated 5.5.2006 &

3.12.2011 for carrying out various studies towards preparation of

DPR/Bankable Report of the project.

The EAG was also apprised regarding the revised rates as per the

Govt. Resolution dated 03/12/2011 for availing the consultancy

service of national consultants.

6

Minutes of Agenda No. 4a & 4b:

Geophysical survey along the revised dam corridor by NIOT,

Chennai ((11//44)) including geotechnical investigation

and

Geotechnical Survey & investigation for dam design

1.0 Dr. Jena, Deputy Project Director of NIOT presented a detailed

progress of important items, reasons for variations of items

and delay of this study. He also stated that single beam echo

sounding (SBES), single beam bathymetry and grab sampling

quantities were increased in quantities. Whereas Multi-Beam

Echo Sounding, single channel seismic profiling SCSP, side scan

sonar imaging and Marine magnetometer survey quantities

were decreased. He further stated that field survey was

completed in all respects except submission of report.

2.0 SAC submitted a detailed report of this study. Prof. Tad Murty,

Chairman, highlighted the following important issues.

1) Cdr. K L Rao, Hydrographer (Retd) and National consultant

verified all data collection and processing. Dr. N. Ghosh,

National Consultant, has also verified data analysis of

Single channel seismic profiling SCSP and analysis of

Marine magnetometer. Dr. N. Ghosh, Shri Pancholi and

Shri Kasliwal, National consultants have verified the results

of Cone Pentrometer (CPT), Vibrocorer Investigations and

the entire geophysical investigation chart/ DTM.

2) The geotechnical data has been obtained to a maximum

depth of 6 m. The geophysical and geotechnical map of

Blocks A, B,C,D have been prepared by the NIOT.

3) The magnetic map along the dam corridor was useful in

ruling out the presence of any hazard on the seafloor like

wreckage of ship or magnetic bodies. The survey indicates

7

intrusive bodies in the basement rock, lineaments/ faults.

The interpretation also indicates depth variation of

basement rock below the thick alluvial deposits. The

seismic survey indicates the presence of west bounding

marginal fault of cambay Graben. Different lineaments are

found to be in general agreement with geological regional

map of the area.

4) A Digital Elevation Model (DEM) is being generated by

compiling all sounding data collected from various teams.

The DEM may be used to generate maps in hardcopy in

any scale and contours at any interval.

5) Dr. K. M. Sivakholundu, Mr. D. Venkat Rao, Mr.

Badrinarayan of NIOT along with Dr. N. Ghosh, Mr. D. M.

Pancholi and Mr. V. K. Kasliwal, National consultants and

other SAC members studies in depth “Geophysical survey

along the revised dam corridor” considering (1) Seismic

Magnitude Map of Gujarat, (2) Sub bottom profiling,

(3) Corridor Bathymetry Contour with SBP Coverage,

(4) Sequential overlay of Bathymetry Contours,

(5) Magnetic anomaly map along dam corridor, (6) Single

beam bathymetry @ Shallow Portions of Dam Corridor,

(7) Seabed Sonic image from Multi-beam backscatter for

Area- A, B, C & D, (8) Grab Sampling, (9) Particle size

distribution Curve, and (10) Results of Electro-vibro core

tests and cone penetration tests are used for fixing dam

alignments.

6) NIOT has first investigated 21 alternative (L-1 to L-22

excluding L-17) lines for the water Channel A, B, C and D.

The observed fault lines/lineaments for all the deep water

channel areas with various geophysical and geotechnical

data, NIOT recommended three alignments ( L-3, L-11 and

8

L-19) for further investigation. SAC agreed for these

selections.

7) These three alignments have thereafter been further

scrutinized by SAC members and NIOT officials and they

have recommended Alignment L-3 from geophysical,

geological & geomorphological considerations. Dam

alignment L3 have the advantages of intercepting the

additional flows of rivers (Kalubhar, Ghelo and Rangholi) in

the reservoir, comparatively easier to join the approaches

on both the sides as well as avoiding ship breaking units,

Nirma factory and Kabadi (scrap) market.

8) SAC members and NIOT have scrutinized the Geotechnical

estimate/plan from above field data. Dr S. R. Gandhi, IIT,

Chennai was also consulted for this investigation.SAC

agreed for number of bore holes, location and depth. The

unit rates of drilling looks on quite lower side looking to

imported Jack up platform, their availability and site

adverse conditions and therefore SAC suggested to take

help for preparing estimate of international firm M/S Fugro

Geotech Pvt. Ltd. or any other.

3.0 EAG, after detailed deliberations on above points, considered

all observations of SAC. EAG suggested that NIOT should

submit the revised estimate and draft final report to the

department for approval. EAG found L3 alignment as the most

appropriate alignment in respect of carrying out detailed

Geotechnical Investigation and Approach Road Planning. EAG

also agreed with the Geotechnical Estimate, location and depth

of bore holes for further Geotechnical Investigations prepared

by National Consultants and vetted by NIOT and SAC.

9

Minutes of Agenda No. 5

Bathymetric Survey in the Gulf of Khambhat (Northern

Portion) by NIOT, Chennai ((22//44))

1.0 Dr. Jena of NIOT presented the details of progress of important

activities as well as the reasons for delays. He stated that Dr.

P.N. Shridhar (NRSA) explained SAC the status of ongoing

work carried out on satellite imageries by NRSA. He had

planned to complete this work by March 2013.

2.0 Prof. Tad Murty, Chairman SAC, submitted detailed report and

also highlighted important issues as under:

1. NIOT has provided the Sontec single point Current meter

along with Pressure Tide Gauge (PTG) in place of

catamaran type observatories due to technical problems.

This will not materially affect quality of data. Now NIOT

has installed the systems at 2 m depth instead of 10 m.

The data from these 14 installations may be adequate to

cover the data requirement for modeling. Further year

2013 monsoon data will also be available for modeling.

2. Non- availability of monsoon data does not pose much of

a problem for modeling studies as due to high tidal range,

the tidal currents will not be affected due to fresh water

discharges during monsoon.

3. NIOT will provide all input data in DTM format which can

be used by other institutes for their studies purposes. No

input from hydrodynamic modeling is required.

3.0 EAG, after deliberations, accepted the observations/

clarifications of SAC and also suggested that NIOT should

submit the proposal for time limit extension as well as revised

estimate to department for their approval.

10


Bathymetric Survey in the Gulf of Khambhat (Southern

Portion) by NIOT, Chennai ((33//44))

1.0 Dr. Jena of NIOT presented the details of progress of various

items including reasons, any variations in items and delay. He

stated that earlier Bathymetric work was estimated 18000 lkm

from the Google earth image. Now on actual survey it is

increased to 21400 lkm. The cost will also increase from Rs.

548.8 Lakhs to Rs. 648.76 Lakhs. This work will be completed

by December-2012.

2.0 SAC carried out scientific auditing of this study at Chennai and

prepared detailed report. Dr. Tad Murty, Chairman, SAC

highlighted following important points:

2.1 NIOT will provide Bathymetry survey in scale of 1:15000

with interval of 0.5 m (Softcopy). They will also give data

in DTM/ASCII format which can be used for any

mathematical model as input data.

2.2 These data in ASCII/DTM will be provided by NIOT to

other studies like storm surge, tsunami, sea level rise,

port etc. They can then incorporated directly into their

studies. Hence, there is no need of any integration

software of various studies.

2.3 All institutes should submit a copy of operational

software along with guidelines of usage to the Kalpasar

Department in acceptable magnetic media.

3.0 EAG, after detailed deliberations, accepted all

observations/clarifications of SAC and also suggested to NIOT

to submit the revised time limit extension proposal including

revised estimate to department for their approval.

11


Progress of hydrodynamic and sediment model studies and

related measurements for Gulf of Khambhat by National

Institute of Ocean Technology (NIOT), Chennai (4/4)

1.0 Dr. Jena. B. K., Deputy Project Director, NIOT made the

presentation with the detailed bar chart for completion all

activities.

2.0 Prof. Tad Murty, Chairman SAC also appraised the EAG as

follows:

2.1 MOA has been signed recently on 28th, May, 2012 by

NIOT. Bathymetric and met-ocean observations results

are expected to be available by December 2012 which

essentially forms input for this study. Preparatory works

like DTM preparation, coastline digitization and

preliminary model setup using DELFT3D have been

commenced.

2.2 NIOT likely to enter into a MOU with DELTARES

Netherland for model technical support. The open source

code of Delta3D to be made available by DELTARES is

one of the worlds’ state of art for hydrodynamic models.

DELTARES is one of the worlds’ leading institutes with

proven track record in both research and consultancy in

the field of coastal and river engineering. The SAC is

confident for the capability of software developed by

DELTARES.

2.3 SAC is of the opinion the software used by NIOT need not

be integrated with other studies. But the results of all

models will be integrated to estimate the forces and

freeboard for the structure.

12

3.0 EAG, after deliberations, considered and accepted observations

of SAC for this study. EAG suggested that the NIOT should use

the internationally and universally accepted software so that, in

future, when any PPP agency comes forward for carrying out

project, Software can easily be integrated. NIOT should

prepare a detailed Road map alongwith the role/ responsible/

working day etc of various team experts and furnish such road

map of this study to the department.


Presentation of Salient features of Impact of storm surges,

Wind waves and Seiches on the proposed Kalpasar dam

Prof. S. K. Dube, IITD made the presentation on Storm Surge and

Seiche while Prof. P. K. Bhaskaran from IIT Kharagpur made the

presentation on Wind Wave Component. They have incorporated all

the observations raised by department on their presentations. Prof.

Tad Murty, Chairman SAC, also appraised the EAG. Following

important points are discussed:

1.0 Storm Surges

I. The resolution was determined through sensitivity

analysis of the grid. The study region covers the entire

coastal regions of Gujarat and North Maharashtra.

II. Tide and surge interaction is always non-linear; hence

the model employed non-linear interaction. Model has

been tested and validated for value of ∆P=66 hpa i.e.

highest recorded central pressure drop of all historical

cyclones that have hit Gujarat coast.

III. The intensity of tropical cyclones might increase in the

range of 2-11% due to climate change. Twenty (20) sets

13

of each experiment at the width of 10 km intervals were

carried out for following three scenarios (with and

without dam) leading to a total of 120 experiments.(a)

No climate change,(b) Intensification of tropical cyclone

by 7% (average value) and (c) Intensification by 11%

(extreme case). IV. Results give between 4 and 9 m along the various

regions of the Gulf and 6 to 8 m near the dam PMSS

elevations including tide. In the case of no dam, the

storm surge enters straight into the very shallow region

of the head of the Gulf generating higher surges than in

the case of presence of dam.

2.0 Seiche component

Prof. Dube had given justifications of using MIKE 21 Model and the

boundary of the model and the data used. The maximum seiches

were observed during the 1998 cyclone. If the cyclone of that type

would pass over the gulf of Khambhat, then it will induce a current of

0.5m/s inside the closed basin. The seiche amplitude in the basin is

ranging from 5 mm to 20 cm.

Due to the decrease in fetch of wind to induce seiching, the results

show the amplitude of seiche decreases and the time period

decreases inside the dam. The amplitude of seiche increases and the

time period decreases outside the dam.

3.0 Wind Wave Component

I. Prof. Bhaskaran stated that SWAN is a third generation

state-of-art wave model to obtain realistic estimates of

wave parameters in coastal areas from given wind,

bottom and current conditions. It comprises of various

processes including wave generation, non-linear

14

interaction, dissipation and wave breaking mechanisms.

The sedimentation mechanism has a role in modifying

the frictional characteristics of wave propagation. Hence,

appropriate bottom characteristics and loss due to

frictional dissipation mechanism have been taken into

account.

II. The ENVISAT satellite data for significant wave heights

were used in model validation. The set of numerical

experiments considering the effects of with/without dam

under no climate change, 7% and 11% wind field

intensification is used. The wave setup computations

were performed along the length of the proposed dam.

III. Model was run with varying elevation, currents and wind

data were provided at an interval of every 5 minutes

along the cyclone tracks. The high resolution of time

interval is sufficient to study the non-linear effects of

wave-current-tide interaction. The results are as under: scenarios Cyclone Tracks without dam Cyclone Tracks with dam

Corridor-3 Track through the Gulf.

Corridor-3 Track through the Gulf.

Max significant wave height attained in centre of gulf.

wave height attained along dam location

Max significant wave height attained in centre of gulf.

wave height attained along dam location

No climate change

10.06 m 7.2 m 9.88 m 6.5 m

Intensification of tropical cyclone by 7% (average value)

10.59 m 7.7 m 10.45 m 7.4 m

Intensification by 11% (extreme case).

10.74 m 7.9 m 10.74 m 7.6 m

4.0 EAG, after deliberations accepted the clarifications made by

Prof. Dube and Prof. Bhaskaran on observations made by the

department. EAG suggested that IITD should complete the

15

study using fresh bathymetric data from NIOT and submit the

draft final report before June, 2013. EAG suggested to take

help of International Expert Prof. Ioan Nistor as well as other

members of SAC as suggested by Prof Tad Murty for Estimation

of combined forces of the dam due to storm surge, seiches,

tsunami, wind waves etc. Forces calculations should be

presented in the next EAG meeting.


Presentation of Interim Report on “Study of the impact of

Tsunami effect on the design of proposed Kalpasar dam” by

National Geographical Research Institute (NGRI),

Hyderabad

1.0 Dr. Kirti Srivastava of NGRI, Hyderabad discussed with SAC at

Chennai and thereafter Dr. Krishna of NGRI, Hyderabad, made

the presentation in the 9th EAG meeting on “Study of impact of

Tsunami effects on the design of Kalpasar dam”. NGRI and

Prof. Tad Murty, Chairman, SAC also clarified the observations

raised by the department.

I. NGRI is using the Tsunami N2 Model in this study. As per

EAG suggestions, model was run considering earthquake

at Makran Region up to 9.3 magnitude at a 5 km focal

depth keeping other controlling parameters same. The

amplification of the wave heights is being studied.

Vertical elevation along the centre line of tsunami

propagation and amplification at the continental shelf has

been computed. NGRI has observed that near the dam

site (Luhara), the tsunami reaches 432.2 minutes after

16

the earthquake and the tsunami height there will be

0.3686 m only. The wave heights at the ONGC- Mumbai

High are around 0.52 m to 0.8 m. The study also shows

that with rupture between 300 to 400 km in length and

even with 9.5 magnitude earthquake at Makran region,

NGRI has not observed any significant change in the

wave heights as the bathymetry does not allow much

amplification.

II. NGRI clarified that in the Gulf of Khambhat region, it is

difficult to generate a tsunamigenic earthquake at

shallow depths. There are no active volcanoes in the

region. There are only mud volcanoes. Any small

magnitude earthquakes in this region are not of thrust

type.

III. Once the NIOT bathymetric data are available, the final

models would be run and several scenarios would

be prepared and a final project report would be

submitted. Prof. Ioan Nistor, International Consultant,

will work out the tsunami forces. There is no requirement

for integration of tsunami study with the one given to the

IIT Roorkee/ GERI for earthquake studies in the vicinity

of dam.

IV. NIOT, NIO, NGRI, IIT Delhi, etc will provide Kalpasar

Department with manual on how to use the data and set

up the mathematical model that was used by them. This

manual shall contain sample calculations if necessary. A

copy of operational open source free software that is

used may also be provided.

17

2.0 EAG, after deliberations, accepted the results of Makran

tsunami at Kalpasar dam site. EAG also suggested that NGRI

should complete the study using fresh data of bathymetry from

NIOT and submit the draft final report by June, 2013. For the

estimation of combined forces of the dam due to storm surge,

seiches, tsunami, wind waves and tides etc, new studies should

be initiated with the help of International Expert Prof. Ioan

Nistor immediately.


“Study on the effect of sea level changes and regional climate

changes on design of Kalpasar dam” by National Institute of

Oceanography, Goa.

1. Prof. Tad Murty, Chairman, SAC explained that as per the NIO,

Goa’s draft final report on the “Effect of sea level changes and

regional climate changes on design of Kalpasar dam”, an

average of 4 mm/year sea level rise is acceptable. He stated

that if anticipated life span of the dam is considered to be 250

yrs, then 1 m free board will be required for Sea Level Rise in

the design of dam. SAC compared this value with the practice

of coastal engineering consulting companies (BAIRD

Associates) also. SAC recommended that the NIO, Goa report

be adapted. Prof. Tad Murty suggested to take the services of

IITM, Pune for a detailed climate change study as NIO, Goa

report on this issue is very preliminary.

2. EAG accepted the report of NIO, Goa as far as sea level rise

study is concerned and agreed with SAC to carry out climate

change study with the help of IITM, Pune. Dr. Ghosh National

Consultant and CE (K-2) & AS would immediately contact Dr.

Krishnakumar of IITM to obtain necessary proposal.

18

Minutes of agenda No. 11

Proposal for ‘‘Establishment of a network of seismological

observatories for monitoring the seismic activity around

Kalpasar Project”

(1) GERI (Gujarat Engineering Research Institute), Vadodara made

the presentation on the proposal for ‘‘Establishment of a

network of seismological observatories for monitoring the

seismic activity around Kalpasar Project”. Shri Khan from GERI

stated that IS:4967–1968: ‘Recommendations for seismic

instrumentation for river valley projects’, close spaced local

network of observatories for monitoring of micro-earthquake

activity of the project area is necessary. The primary objective

of seismological network is to investigate the sources of

seismic activity in the vicinity of proposed site. Tentative

locations of network of 8 Seismological observatories with

latest Broad Band Digital Seismographs and Strong Motion

Accelerographs (SMA) linked by VSAT based satellite system to

the Central Seismic Data Centre at GERI is proposed. Shri Rao,

Director, GERI explained that the present proposal for

establishment of 8 Broad Band Seismological observatories +

4BBS stand by units and monitoring of the same for the period

of five years is amounting Rs.700 lacs (Rs.460 lacs capital +

Rs.237 lacs recurring cost for five years.) EAG has earlier

suggested to first obtain vetting by ISR, Gujarat and IIT

Roorkee.

(2) Seismic study activity of deployment, supervision, quality

control of equipment’s including maintenance for design of

dam, amounting to Rs 80.00 Lacs has been entrusted to IIT,

Roorkee as approved in the 8th EAG meeting. As per Terms of

19

reference, IIT, Roorkee shall advise GERI from time to time as

and when required on various work items such as deployment,

supervision, interpretation, etc. IIT Roorkee has scrutinized

and broadly agreed with the revised proposal of GERI for

establishment of network of observatories with estimate

amounting to Rs 769.78 lacs including technical work of Rs.

434.57 lacs and administrative work of Rs. 335.21 lacs.

(3) EAG, after detailed discussion, agreed with GERI’s proposal as

recommended by IIT, Roorkee amounting to Rs. 769.78 lacs

subject to compress the duration to one year (for

establishment of the net work) with saving of about two-three

months for establishment of observatories.


Selection of Alignment for construction of Bhadbhut Barrage

(1) Dr Yoginarsihman of M/s SECON Pvt. Ltd explained in details

how three alternative alignments are selected. He explained

that Alignment–1, Alignment-2 and Alignment-3 are 2.0 km,

3.65 km and 5.15 km d/s of village - Bhadbhut respectively.

Various parameters such as River width available to

accommodate barrage length, Afflux on water levels resulting

from the barrage construction, area to be acquired for

approach embankments, excavation for approach and tail

channel, siltation problem, storage capacity, total cost of the

project, vicinity of gas pipelines/ gas stations, villages and

valuable properties, villages benefited by availability of fresh

water and land area free from tide water and land reclaimed

have been analysed for selecting the best alternative.

Considering all these parameters, Alignment -3 i.e. 5.15 km

d/s of village – Bhadbhut is recommended.

20

(2) All three alignments locations were shown to EAG members

during their site visit on 15/07/2012. EAG members also found

that on site the Alignment-3 is better than other two

alternatives.

(3) The officials of Kalpasar department mentioned that planning of

PCPIR of Dahej is in advance stage of approval. The draft

development plan of PCPIR with various types of zones and

road network are finalized by PCPIR. In case of Narmada

Diversion Canal, Chief Secretary had advised Kalpasar

department to follow the alignment as shown in the draft

development plan to avoid the issues related to land acquisition

in this region. Hence, to have better coordination with planning

of PCPIR, it would be required to follow planning of road

network finalized by PCPIR on right bank, as far as possible.

Hence, alignment of right approach is required to be decided in

consultation with PCPIR authority, which may need minor

modification in alignment no.3 as proposed by M/s. SECON.

(4) The EAG considered the socio – economic and technical

considerations of all the three alternatives and accepted the

Alignment-3 as recommended by SECON and Group of National

Level Consultants along with the department’s suggestion to

kept the left bank approach straight (between Hansot and

Utraj) instead a kink as proposed by SECON to avoid the

reserved forest area and right bank approach of the barrage

alignment with the final road alignment of PCPIR, which is in

advance stage of approval by the concerned authority.

21


Determination of Various floods for the design of Bhadbhut

barrage

Part-I Estimation of Design flood at Bhadbhut Barrage site

1.0 Dr. Yoganarasimhan of SECON Pvt. Ltd presented studies

carried out for the estimation of design flood at barrage.

He explained in detailed the methodology adopted for the

working out flood computation

(i) The proposed barrage is located 150 km d/s of SSP. The

Karjan river and the Orsang river are meeting the

Narmada river at 74 km & 108 km, respectively, in u/s of

Bhadbhut Barrage. There are three major projects: Sardar

Sarovar Project, Karjan Dam and Sukhi Dam in u/s of

Bhadbhut Barrage. The free catchment below these three

major projects is 8649 sq.km

(ii) The observed most severe storm of the year 1945 (2 days

duration) at Kevadia colony is adopted as design storm.

Average rainfall depths for the storm on seven sub basins

are worked out and the 3 hourly percentage distributions

for 48 hours storm have been applied to arrive rainfall

distributions.

(iii) The design flood is worked out by superimposing: (i) The

design flood at confluence of Karjan, Orsang,& Narmada

rivers i.e. Karjan Confluence, (ii) Routing of combined

floods at Karjan Confluence up to Bhadbhut Barrage site

(iii) Sequential addition of flood between Karjan

Confluence and barrage site.

22

(iv) The SSNNL Disaster Management Plan 2011(Flood

Manual) provides the values of the flood of different return

period at Sardar Sarovar dam site. Accordingly, the values

of flood at Bhadbhut site for various frequencies are

worked out as under:

Above Flood Values are derived assuming no flood

interception due to existing Indirasagar, Omkareshwar and

Maheshwar Projects. Hence, potential and frequency of

flood calculated as assessed for barrage on conservative

side.

2.0 The EAG agreed with above flood frequency at Bhadbhut

barrage site computed by M/S SECON Pvt. Ltd in consultation

with Dr. Mathur & Shri Kaushik, National Consultant & vetted

by the CDO, Gandhinagar. EAG also agreed to adopt the above

flood for detailed design to be carried out by EPC agency

(BOT).

Flood frequency

(in year) Discharge in cumecs

1:25 57750

1:50 66937

1:100 77505

1:500 86665

1:1000 98643

SPF (Entire Narmada basin) 105689

23

Part II: Determination of design flood for Bhadbhut barrage

1.0 Dr. Yognarsimhan explained the various provision and

standards used in India for design of Barrage are as under:

(i) BIS 6966-1989, “Hydraulic Design of Barrage and Weirs-

recommends 50 year frequency for design flood,

(ii) Central Board of Irrigation and Power’s Manual on

barrage and weirs on permeable foundation, Volume

I-1985 suggests to design the waterway to pass safely a

flood of 1 in 50 or 1 in 100 years frequency,

(iii) Central Water Commission has recently finalized design

flood of 1:50 year (22.07 lac cusec) for Garudehswar

weir, which is located on Naramda River upstream of

Bhadbhut Barrage.

(iv) Khosla Committee of Engineers recommends maximum

recorded flood for a period greater than 50 years as

design flood.

2.0 Generally civil engineering structures like dam, barrage,

bridge, building, road, port etc. are designed on the basis of

Indian Standards, wherever such IS is not available then only

other guidelines are used. Hence M/S SECON has considered 1

in 100 years flood for design of Barrage, Gates and sub

structure and also provided free board considering 1 in 500

year flood. Further M/S Secon, has also designed the barrage

in such a way that it will pass flood of 105,689 cumecs (SPF),

in which 1:100 year flood i.e. 77,505 cumecs will pass through

barrage and balance 28,184 cumecs will be diverted to the

flood plane on the left bank through the breaching section near

barrage and thereafter under bridge portion of approach to the

barrage.

24

3.0 Mr. Bryan Leyland, Member EAG, suggested to reexamine the

provision of bridge as well as breaching section provided on left

bank embankment. EAG accepted the suggestion of Mr. Bryan

Leyland for reexamining the requirement of bridge &

alternative of passing 28184 cumecs flood through barrage

gates instead of breaching section. Kalpasar Department in

consultation with M/S SECON should decide this issue at their

level in consultation with Chairman, EAG.

4.0 EAG agreed to consider 1 in 100 year flood for design of

Barrage structure.EAG also agreed to consider SPF flood

passing through structure.EAG also suggested to use this flood

for detailed barrage design to be carried out by EPC agency

(BOT). EAG concurred to freeze the above mentioned design

flood values so as to be used in various hydrological

estimations for the Bhadbhut barrage project.


Design of barrage and appurtenant works for the proposed

Bhadbhut barrage.

1.0 Dr. Yoganarasimhan and Shri Rama Iyenger of M/S SECON,

Pvt. Ltd. Bangalore presented the design features of various

components of barrage. They stated that as per the scope of

work, the preliminary design and skematic drawings of the

barrage have been prepared for the alignment No.3, 5.15 km

downstream of Bhadbhut village. The PPP agency will prepare

detailed design and drawings for construction purpose. Various

components of barrage and bridge have been designed in

accordance with the provision of IS:6966: 1989 “Hydraulic

design of barrage and weirs Part-I alluvial reaches”, Manual on

barrages and weirs on permeable foundation, (CBIP publication

25

No.179), IRC : 5-1998, IRC 78: 2000 & other relevant codes of

BIS, IRC and manuals.

2.0 M/s. SECON Pvt. Ltd. has worked out the design features of

main components of barrage, which are as under:

(i) Barrage

The net (effective) waterway as per Lacey’s theory works

out to 1345m.The proposed total length is 1663 m

including fish ladder and ship lock.

(ii) Gates

After detailed study of pros.& cons of vertical gates v/s

radial gates, vertical gates have been proposed. 80 Nos.

(Size 15.5m X 9.5m) for normal blocks, 10 Nos. (size

15.5m X 10.5m) for sluice blocks have been proposed. To

prevent entry of sea water in to stilling basin, vertical

gates (size 15.5m x 9.0m) have also proposed on d/s

side.

(iii) Stilling basin & cutoffs

Total floor length is 79.85m,with thickness ranging from

3m to 4m.The u/s cut off of 17.5 depth (1R) and d/s &

intermediate cut off of 28.5m depth (2R) are proposed.

(iv) Fish ladder

To provide passage for easy movement of fishes from sea

to reservoir and vice versa, fish ladder of 5 m width with

gate (size 5.0m X 10.50m) is provided in the barrage.

Baffles with staggered gaps are proposed to reduce

velocity up to 3m/sec for easy movement of fish.

26

(v) Navigation Lock

One gate of size 15.5m X 10.5m on both upstream and

downstream side to build up water level is provided for

movement of small boats from reservoir to sea side and

vice– versa.

(vi) Bridge over Barrage

To create connectivity between Surat (Hazira)-Dahej via

Olpad-Hansot, six lane bridges with M40 concrete grade

of pre cast pre-stress concrete girder type super

structure is provided. Overall length of bridge is 1663m.

(vii) Breaching Section & Bridge

The breaching section would consist of rock fill materials

up to RL 8.5 m and earth material from RL 8.5 m to 12.0

m, in a length of 3000 m on left bank near barrage. This

will permit passage of flood in excess of 1 in 100 year

flood (up to SPF) by breaching at predetermined

reservoir level.

To pass the flood coming through breaching section as

well as local run off, bridge of 2110 m length having 85

spans each of 30 m width has been proposed.

(viii) Approach on both banks

Left approach of 6.65 km length & right approach of 4.70

km length are proposed. Six lane road is proposed on

embankment.

EAG, after detailed discussion, broadly agreed for preliminary design

and skematic drawings of the barrage and appurtenant structures,

prepared by the consultancy firm. While agreeing for the provision of

fish ladder and navigation lock (ship lock), suggested by M/S SECON,

27

the EAG suggested that the issue of double gates (u/s & d/s) as well

as vertical gates verses radial gates and, breaching section cum

bridge of approach should be reexamined by M/S SECON in

consultation with C.D.O. Gandhinagar and submit their final proposal

for EAG’s consideration.


Design of flood protection embankment on both bank of

Narmada river for Bhadbhut Barrage.

1.0 Mr. Rama Iyengar of M/s SECON, Bangalore explained that the

left bank is relatively flat and the ground levels are varying

from El 5.5 to 6 m. During the high flood, 400 sq.km. left bank

area are coming under submergence. Hence flood protection

against frequent flooding of low lying left bank area is

necessary. Further due to the construction of barrage structure

& embankment, water level would rise. M/S SECON proposed

the flood embankment starting from the barrage up to

Zadeswar Bridge near Bharuch. M/s SECON has considered the

flood protection embankments keeping a minimum width of

water way of 1.6 km, so that minimum land comes under

submergence. Mr Iyengar stated that as per IS 12094-Guide

lines for planning & design of river embankment to protect

agriculture land, 1 in 25 year flood frequency (57750 cumecs)

can be considered. However, on conservative side the flood

protection embankment is designed considering 1 in 100 year

flood frequency (77505 cumecs) with 1.0 m free board.

2.0 M/S SECON earlier suggested the earthen embankment only.

However, as per the suggestions of Kalpasar Department, they

28

have worked out alternative of RCC retaining wall also.Two

alternatives of constructing the left bank embankments viz.

RCC counter fort type retaining wall (either with stone columns

or pile foundation) and earthen embankment were presented

by M/S SECON.

a) On the left bank, RCC retaining wall and ground

improvement is proposed with stone columns of 100 cm

diameter to a depth of 6m, at 2m X 2m grid, if provided,

the approximate cost will be Rs 5.2 lakh per meter. Total

cost of RCC retaining wall worked out by M/S SECON is

Rs 1250 crores. If ground improvement is carried out

with pile foundation with 1.2m diameter bored piles

driven up to a depth of 20m with 3.6m spacing both

ways, then cost will rise to Rs 6.8 lakhs per meter.

Hence, Total cost of RCC retaining wall will be about

Rs.1634 crore.

b) M/S SECON stated that, earthen/rock-fill embankment

would be of simpler construction. Its average height

would be 8 m with a top width of 5 m, side slopes of

2.5:1 with a free board of 1m. A 30m wide road at an

average height of 3m above the local ground levels on

the leeward side has been proposed. This would cost

around Rs 70,000 per meter. Hence, total cost of Left

Bank Embankment will be about Rs. 168 crore.

3.0 On the right bank, embankment would be of relatively smaller

height because of the higher ground levels. The average height

would be about 3m with a unit cost of Rs. 24,000 per metre

and total cost of Right Bank Embankment will be Rs. 65 crore.

29

4.0 EAG discussed the design features of flood protection

embankments in detail. EAG considered the cost of RCC

protection wall which is 8 to 10 times costlier than

Earthen/Rock fill embankment. Hence, finally recommended

the alternative of earthen/ rock-fill embankment, in view of

substantial reduction in cost, as compared to RCC construction.

It was also suggested that 30 m wide road on the embankment

should be on the top, instead of leeward side, so as to allow

the river sideview for the travellers as this project can also be

developed as river front project at later stage. This will further

increase safety of embankment. The EAG also suggested to

provide flood protection wall up to Railway bridge in phase I.


Back water analysis of the proposed Bhadbhut barrage

1.0 Dr. Yoganarasimhan of M/S SECON Pvt. Ltd. in his presentation

explained that

(i) On account of barrage and flood protection embankment,

the natural river water course is restricted and

consequently the water levels of barrage would rise.

Hence back water analysis has been carried out to assess

the afflux at four upstream bridges and to help in

determining afflux flood levels at different locations and

height of protection embankments. M/S SECON has used

HEC-RAS model of Hydrologic Engineering Center

software, (US Army Corps of Engineers), for one-

dimensional back water analysis to compute the water

surface profile for steady water flows.

30

(ii) The model was run (Bridge design requirement) for the

discharge of 69,384 cumec (observed maximum so far

and slightly more than 50 years flood). The following pre-

barrage and post-barrage scenarios with, (i) Existing

river condition without barrage (ii) Barrage with approach

embankment on left, and (iii) Barrage + approach

embankment + flood protection embankments were

studied. The result shows that construction of barrage

had negligible afflux of water levels at bridges. However,

imposition of flood embankments with barrage raised the

water levels more than the stipulated margin below the

soffit levels of the bridges.

(iii) M/S SECON has also carried out eight conditions to

explore the possibility of lowering the afflux water levels

effect at bridges by excavating higher ground levels in

river bed such as Dhanturia Island and dredging of river

bed and banks. Removal of Dhanturia island & river bed

graded from Zadeshwer bridge/railway bridge to barrage

will result in lowering the afflux level to acceptable limits.

The quantum of dredging roughly works out to about 80

MM3 to 90MM3.The same material will be useful for

construction of flood embankment. M/S SECON

concluded that the afflux flood level at Bridges after

construction of barrage and flood embankment with

some dredging can be easily kept within the permissible

limit.

2.0 EAG after detailed discussion agreed to accept to keep Left

Bank flood embankment with 1.6 km River gorge width &

dragging as suggested by M/S SECON but subject to the final

dredging sections/quantity to be worked out during detailed

design by BOT agency.

31

Minutes of Agenda Item No. : 17

Traffic study and Toll Revenue Assessment of Bhadbhut

Barrage

(1) Mr. Manohar of M/s. SECON Pvt. Ltd. presented the traffic

survey analysis for pre and post barrage scenario and

explained that the road distance due to barrage will reduce by

about 18 Km. between Dahej and Hansot. After barrage the

Dahej- Hansot - Olpad - Surat new route would be developed.

He explained that the various traffic surveys i.e. (1) 7 days

continuous Classified Traffic Volume count at 5 Locations (2)

Classified Turning Traffic Volume count at Intersections for

duration of 12 Hours for two locations (3) Origin - Destination

Surveys for period of 24 Hours for three locations (4)

Willingness to pay toll surveys for period of 24 Hours at the

same locations of O-D Survey, has been carried out by SECON

in consultation with Shri R.K.Mehta, National Consultant to

Kalpasar Department. He also explained the assumptions of

Traffic generation due to upcoming PCPIR, Dahej and Traffic

Growth rates for various categories of vehicle types in the

influence area of barrage in the Gujarat State.

(2) Mr. Manohar explained that Assessment of Toll Rates was

carried out as per NHAI guidelines and also with 25%, 50%

and 75 % Savings in the Vehicle Operation Cost (VOC). Based

on these Toll Rates, SECON, considering optimistic and most

likely traffic growths scenarios, estimated Toll Revenue per

year from year 2016 to 2039. SECON also suggested that

traffic requires a minimum of 2-lane undivided carriage way in

year 2016, 4 lane divided carriage way in the year 2018 and 6

lane carriage way in the year 2040-2041 based on the

estimated traffic as per guidelines set in IRC-64-1990 in their

32

final Traffic Survey Report. As the project is to be executed

under BOT model of PPP mode, SECON recommended to

provide 6-lane divided carriage way in the tender document of

the proposed Bhadbhut Barrage.

(3) EAG, after detailed discussion, accepted the Traffic Survey

Report as submitted by M/s. SECON Pvt. Ltd. EAG further

recommended to consider 6 - lane divided carriage way. EAG

also accepted that as the project is proposed to be

implemented on PPP mode, the toll rates shall be at the rate

25% of VOC for the initial five years and thereafter as per

current NHAI policy (about 50% of VOC).


Industrial water demand for uses in Dahej PCPIR and other

industries from Bhadbhut Barrage Project

(1) Mr. Shiva Prasad of M/s SECON Pvt. Ltd presented the details

of domestic and industrial water demand survey and explained

regarding water requirement of industries in GIDC estates and

Dahej PCPIR region. He explained that due to non availability

of permanent water source except Narmada river water, at

present GIDC is pumping 58 MGD water from Narmada river at

Angareshwar (70km upstream from Bhadbhut) to cater the

needs of industries in GIDC estates and Dahej PCPIR region.

But presently the Narmada river water up to Angareshwar is

influenced by tidal ingress and is not usable/ fit even for

industrial purposes.

33

(2) He further explained that Gujarat Industrial Development

Corporation (GIDC) has planned for Petroleum, Chemical &

Petrochemical Investment Region (PCPIR) in Dahej industrial

area. GIDC has worked out industrial water requirement for

PCPIR with different development scenario. He further stated

that there is substantial water demand beyond year 2020.

GIDC has worked out their projected demand for industrial use

to the tune of 300 to 325 MGD (1370 to 1490 MLD) for uses of

industries in GIDC estates and Dahej PCPIR region with

identification of various sources.

(3) Shri A. B. Thakkar S.E., PIU-2, Vadodara further explained that

the domestic water supply requirement from Bhadbhut barrage

has been furnished by GWSSB to Kalpasar department.

Accordingly the domestic water requirement works out to 60

MCM per year. Also it is planned to reactivate two defunct lift

irrigation schemes having total command area of 1136 ha.

Hence irrigation water requirement from Bhadbhut barrage is

worked out as 10 MCM.

(4) Department of Industries and Mines has officially confirmed

and conveyed the Bhadbhut barrage based water requirement

of 200 MGD (910 MLD) for Dahej PCPIR region and 40 MGD

(185 MLD) for GIDC Ankleshwar, Panoli and Jhagadia Estates,

to Kalpasar Department on 13/07/2012. Hence, GIDC industrial

water requirement, based on Bhadbhut barrage, will be 1095

MLD, say 1100 MLD, in year 2020 and onwards. Considering

the element of uncertainty such as reduction in demand due to

incremental rates, delay /abandonment in establishing

industry, improved technology requiring less quantity of water

etc., a conservative demand at 50% of 1100 MLD i.e. 550 MLD

has been considered by Kalpasar Department for the revenue

assessment.

34

Department has considered the present industrial water rate of

Rs. 19.48 / m3 (for the year 2012-13) as per water rate policy

in vogue in Water Resources Department with 10% annual

increment till the rate reaches to Rs. 40/ m3 and thereafter at

5% to derive annual cash flow calculation (revenue

generation).

(5) EAG agreed with the department’s proposal to consider

industrial water demand of GIDC with 50% of total projected

demand for revenue generation for calculation purpose and for

using the same details for PPP tender paper. EAG also agreed

for allocation of 60 MCM water for domestic water supply use

and 10 MCM allocation for irrigation purposes.


2D Mathematical modeling for Bhadbhut Barrage

(1) Dr Yoginarsihman of M/s. SECON Pvt. Ltd. presented the study

report on 2D Mathematical modeling for Bhadbhut Barrage

using River 2D version 0.95a, January 2010 software in place

of MIKE. He explained about the Program, its components,

basic assumptions, requirement of input data for model, Finite

Element Method with basic equations, parameters as Eddy

viscosity coefficient, Courant Number etc.

(2) He explained that the modeling has been carried out for

existing flow condition (Case-1) as well as for flow across

barrage and bridge condition (Case-2). Model has been divided

in to two parts i.e. (1) Model-1 Suklatirth to 750 m d/s of

railway bridge and (2) Model-2 750 m d/s of railway bridge to

Dahej-sea. He explained about the boundary conditions

35

(Inflow & Outflow water level estimate in m.) for both models

for Case-1 & Case-2 for the various discharges as (1) SPF -

105689 cumecs (2) 100 year flood -77505 cumecs (3) Max.

observed flood - 69384 cumecs (4) 25 year flood -57750

cumecs. He further explained the 2D modeling results for

Existing Condition without barrage for Case-1 & Case-2 for

Model-1 and Model-2 for the above said Discharges at different

locations.

(3) Prof. Tad Murty, Chairman, SAC explained that MIKE software

has better option as there are some limitation of River2D

software. He further stated that more elaborate information on

model calibration and validation is required. Observed water

level at Golden Bridge shown in Government Flood Manual for

different flood discharges are governing factor for model

calibration and validation. SAC stated that:

The Mike Flood or equivalent with structures and

sediment flow would have been better option. River

2D has limitation in respect of reach length to width

ratio, ability to simulate structures, ability to

simulate spill over embankment, breach section of

embankment and morphological changes.

Topographical data input is governed by extent and

quality of data which appears to be acceptable . Use

of constant HTL and MSL are used as d/s boundary,

which is acceptable. In absence of appropriate

hydrograph data , constant flood discharges have been

used as u/s boundary condition. More elaborate

information on model calibration and validation should be

included.

36

Model calibration and validation will be only for pre

barrage condition.

The latest report on 1-D model for backwater

studies indicate reasonable/acceptable results.

2-D model runs with sediment are yet to be taken

and it is not clear whether model can simulate

morphological changes.

The 2-D model studies report presented do not

include results of various simulation conditions

studied in 1-D model report. The structures cannot be

properly simulated with the presently adapted 2D model.

Therefore simulation for conditions with embankment

over flow and breaching section of embankment may not

be possible.

(4) EAG agreed with SAC for backwater studies of 1D model

carried out by SECON is acceptable, whereas for points/

observations of SAC, M/s. SECON has to be duly complied with.

If required, technical help from NIOT can be availed in

consultation with Dr. N. Ghosh, National consultant.


Consideration of Bhadbhut Barrage Project for PPP

(1) Shri Thakkar, SE, PIU-2, Vadodara presented the details

regarding Bhadbhut Barrage Project proposed under PPP mode

with an option to adopt the BOT model. He explained that

Government has already decided to take up the project on PPP

mode and hence financial analysis is required to be carried out

to assess the revenue earning potential through traffic toll and

37

industrial water sale. In this context, policy decision on some of

the parameters viz. water demand, traffic toll rates, water

rates, concession period, IRR etc are required to be considered

for including the same in PPP tender papers. In this regard joint

meeting was held on 08.06.2012 under the Chairmanship of

Advisor to Hon'ble Chief Minister wherein Shri P. P. Vora,

Former Chairman, IDBI and Member EAG, Shri A. K Doda Ex.

Executive Director, IDBI bank and National consultant were

also present. In view of the discussion, following parameters

have been considered for the financial analysis.

a) The Traffic study envisages the study on estimated traffic

volume. Based on the rates as per NHAI guidelines and

alternatively on 25% saving of VOC, the annual revenue

up to year 2036 (20 years) has been worked out. The

rates for the initial five years have been considered on

the basis of 25% saving of VOC and from the sixth year

onward, the rates are applied as per NHAI guidelines

(about 50% of saving in VOC).

b) The industrial water demand study has been carried out

with the projected water demand for industries in

recognition of fast development of Dahej industrial area

including proposed PCPIR. Water demand for industries in

GIDC area and PCPIR has been supplied by GIDC and the

same has been confirmed by Industries and Mines

Department is considered. Accordingly the projected

water demand by 2020 and onward is 1100 MLD.

However for conservative analysis only 50% demand

have been considered for financial analysis. The annual

water demand worked out as 200 mm3.

38

c) BOT investor will get ownership for selling only 200 Mm3/

annum water to industries. The balance quantity of

balanced stored water will be the GoG ownership for

domestic supply, irrigation water, environment flow and

future diversion to NDC for Kalpasar reservoir etc. For

considerations in the tender paper of PPP mode, it is

therefore proposed that if actual industrial water sale

reduces below 150 Mm3/annum, Government will

reimburse for the quantity beyond 150 Mm3 shortfall for

that particular year and at 50% of the rate in force for

that particular year. Similarly if actual industrial water

sale will be in excess of 250 Mm3/annum, BOT investor

has to reimburse to Government for quantity of water

sale above 250 Mm3 quantity/annum at 50% of the rate

in force for that particular year. It was, nevertheless,

clarified that all these considerations and assumptions, as

stated hitherto, are just tentative and indicative as well

as subject to final decision in this regard by the

competent authority.

d) As per the provision of the G.R. issued by Water

Resources Department, the water rate for the year 2016

works out to Rs. 19.48 /m3 (The barrage project is

planned to be completed by 2015-16.) with an increase

of 10% annually. The water rates are adopted as per G.R

referred to above. It is also proposed to increase the

water rate by 5% after the rate is Rs. 40/m3.

(2) The project cost based on preliminary design (as discussed

hitherto) is about Rs. 2900 crore.

39

As per the financial analysis, the investment of Rs 2900 crore

with 17.1% internal rate of return (IRR) can be easily

recovered in 20 years. Hence, the IRR 17.1% is found

acceptable to pose the project on BOT model. Various options

on budgetary provision and P.P.P. Options like- Annuity Model,

Special Purpose Vehicle (SPV) Model and Build, Operate and

Transfer (BOT) Model for implementing this project were

compared and it was proposed to opt for BOT model.

The bank loan facility is generally available with payback period

as 10 to 12 years. Considering 13% interest rate on debt (70%

of estimated cost) of Rs. 2030 crores, the repayment period is

worked out as 10 years/ 11 years.

The EAG was also appraised of various risks involved in the

project viz. flood hazards, morphological changes, impact on

marine fisheries and financial risk along with risk analysis and

mitigation measures.

(3) (A) EAG agreed with

(i) the proposal from Kalpasar department for the project to

be implemented on BOT, keeping 20 years concession

period but the final decision will have to be taken by the

Govt.

(ii) Traffic toll rate at 25% of saving in VOC is to be adopted

for first five years, and thereafter at rate as per NHAI

policy (about 50% of VOC) for calculation of traffic

revenue.

(iii) Kalpasar Department’s proposal to keep the water

demand at 50% of the total demand as confirmed by the

I and M Department

40

(iv) Water rates to be adopted as per W.R Department G.R in

vogue with annual increment in rate by 10 % up to rate

of Rs. 40 per 1000 liter and thereafter with 5%

increment.

(v) Government of Gujarat will be the owner of domestic as

well as irrigation water, environmental flow and Narmada

water diversion to NDC for Kalpasar reservoir. BOT

investor will get ownership for selling only 200

Mm3/annum water to industries. But, all these being

policy decisions will need to be approved by the Govt. of

Gujarat before taking any further action including its

implementation.

(vi) There is a possibility of wide variation in industrial water

demand in PCPIR as projected by GIDC. Therefore, for

such variation of industrial water quantity over the

entitled 200 Mm3 quantity/annum required some policy

decision is necessary. It was agreed that, if actual

industrial water sale reduces below 150 Mm3/annum,

(25% of the demand), Government will reimburse for the

quantity beyond 150 Mm3 in short fall for that particular

year and at 50% of the rate in force for that particular

year. Similarly if actual industrial water sale will be in

excess of 250 Mm3/annum,(25% of the demand), BOT

investor has to reimburse Government for quantity of

water sale above 250 Mm3 quantity/annum at 50% of the

rate in force for that particular year. The final decision

will obviously be taken by the Govt. of Gujarat.

(B) Shri P. P. Vora, Member, EAG, suggested to avail the services

of State Bank of India Capital Market Ltd. for advice in issues

pertaining to PPP mode viz. going in for PPP mode, suitable

PPP model, selection of investor, evaluation of bid etc. EAG

41

agreed with this suggestion as SBI capital market Ltd belongs

to SBI which is a Government bank.

(C) EAG also advised the department that the above policy

decisions should be adopted only after approval of GIDB or

with modifications as per GIDB directives and, if needed by the

Govt. of Gujarat.


Fixing alignment of Narmada Diversion Canal

(1) "Consultancy Services for Survey, Investigation, Preparation of

design etc. for Narmada Diversion Canal" amounting to Rs.

86.60 Lacs was awarded to M/s SECON Pvt. Ltd., Bangalore. Dr

Yoginarsihman of M/s SECON Pvt. Ltd explained in details how

three alternative NDC alignments are selected. He has also

explained merits / demerits of all these alternative alignments.

M/s SECON recommended Alignment-3A for further field survey

and preliminary design. He explained that alternative 1 and 2

are passing mid-way through PCPIR. Hence, entire planning of

PCPIR will be disturbed. Further, it may be difficult to acquire

such land. It was also mentioned that some portion (about 12

km stretch) of Alignment-3A is matching with the alignment

already marked by GIDC on the development plan for PCPIR

and same is also concurred by Chief Secretary on dtd.

05/12/2011.

(2) The EAG considered the work of PCPIR in Dahej which is in full

swing and GIDC has already finalized the draft Development

Plan of PCPIR. Hence, fixing of Narmada Diversion Canal

alignment is required even for PCPIR Development Plan. EAG

agreed to accept Alignment-3A as recommended by M/s

42

SECON Pvt. Ltd and acceptable to GIDC (PCPIR) only for the

purpose of field survey and canal design which would be

required as a part of “Feasibility Study” of the main project.


Appointment of Independent Engineer for Bhadbhut Barrage

Project in PPP mode

(1) Shri Thakkar, SE, PIU-2, Vadodara made the presentation

according to which the Government has decided to take up

Bhadbhut Barrage Project on PPP mode opting for BOT model.

EAG also recommended that PPP is most preferable instrument

for this project. He explained that as per the guidelines issued

by planning commission, Independent Engineer for the

construction of projects on PPP (BOT) basis is necessary. A

third party having a competent technical team for scrutiny of

design, approving design, preparing draft documents for PPP

bids, evaluation of bids, supervising construction and co-

ordinating activities carried out by BOT investor while

developing, Constructing & operating the works, is required.

Such agency will be required for the entire period of

construction i.e. at tender stage, development stage,

construction stage & operation stage and also in dispute

resolution situation.

(2) It was further explained that government organizations of R &

B Department have implemented many high way projects on

PPP mode and normally, provision of fees and expenses to be

shared equally by Government and concessionaire for the

services of Independent Engineer is kept about 2% of the total

project cost depending on the nature and quantum of duties

43

and services to be performed by Independent Engineer. During

the discussion the details regarding role and functions of

Independent Engineer for Bhadbhut Barrage Project at PPP

tender stage, development stage, construction stage, operation

stage in dispute resolution & other cases were explained to

EAG.

(3) EAG agreed for availing the services of Independent Engineer

(Proof Consultants) for Bhadbhut barrage project. The RFP

document and estimate of Independent Engineer prepared by

the department is accepted by EAG subject to taking

concurrence of GIDB/ the competent authority.


Consultancy services for estimation of PMF, design flood

including determining spillway capacities for the dam of the

Gulf of Khambhat Development Project.

In the 8th EAG Meeting, EAG suggested that the possibility of utilizing

the expertise of IIT Delhi or IIT Roorkee may also be explored.

Accordingly, the proposals of IIT, Delhi and IIT, Roorkee have been

obtained and scrutinized considering vital importance and basic

parameters for dam design, TOR/estimate. National Consultant Dr. B.

S. Mathur advised that the IIT, Roorkee proposal is techno-

economically better than IIT, Delhi proposal. Dr. B. S. Mathur made

a presentation on IIT, Roorkee proposal covering Objectives,

Methodology, Deliverables, Time frame, Financial & mode of payment

etc.

EAG agreed with the above proposal of IIT, Roorkee amounting to

RS. 62.8 lacs + Service tax (as applicable)

44


Feasibility study of Railway Impact Assessment & 10.0 m

wide Utility Corridors on Top of Dam

Shri R. N. Das, Manager(Traffic) and Shri M. K. Sharma, AT(T&E) of

RITES Ltd, New Delhi, Govt. of India undertaking under aegis of the

Ministry of Railway, presented their proposal giving details of scope

of work, approach, methodology, cost estimates, schedule of

payment, deliverables etc. It was informed that if single lane is

proposed then, 30 trains per day in both directions can pass. For

double track railway line, width of about 11 to 12 m will be required.

RITES stated that study will work out commercial viability of railway

lines on the top of Kalpasar dam and will examine the various

alternatives of laying of railway tracks on top of dam i.e. at middle of

dam or at edge of dam, as there may be possible of development of

port on d/s of dam in middle of gulf in which case handling of cargo

would be easier through railway. RITES’ proposal is amounting to Rs.

60.00 lacs + tax.

EAG after detailed discussion, agreed to carry out this study, as it is

required even to finalise top width of dam & for estimate purpose.

EAG further felt that provision of railway on the top of dam will be

beneficial to railway in terms of increased revenue for passenger and

goods traffic and saving in cost due to shortened route, and will be

attractive proposition for railway also and could be explored as

common venture development. RITES is a Central Government

agency. Hence this study can be better carried out through RITES.

After negotiation RITES agreed to reduce estimate from Rs. 60.00

lacs +tax to Rs. 50.00 lacs +tax, which was agreed by EAG.

45


Preparation of Bhadbhut Barrage Management Information

System by CEPT, University, Ahmedabad.

Prof. Akalkotkar, Prof. Sarkar and Shri Deep, Student of CEPT

University made presentation regarding objectives, scope,

deliverables of the study. The presentation covered the PERT chart,

Bar-chart and “S” curve for various activities identified for Bhadbhut

Barrage.

EAG felt that the report prepared by the CEPT University is not up to

the mark as expected from the CEPT University, and needs more

improvement. The M.I.S. program for Bhadbhut barrage be prepared

in such a way that it gives quick details of progress, critical activities

and be prepared in such a way that it gives data which can be used

as monitoring tool for different cadre of officers of the department

i.e. junior level to right up to senior most level of Secretary of the

department. The work should be broken into as many activities as

possible and should not be limited to 31 Nos. as presented.

Minutes of Agenda No. 26 (a)

Environmental assessment including risk assessment: NEERI, Nagpur (1) Government of Gujarat has assigned the EIA study to National

Environmental Engineering Research Institute (NEERI), Nagpur

to prepare Environmental Impact and Risk Assessment (EIRA)

report of the Bhadbhut barrage project. Dr Pandey from NEERI

explained that EIRA report was prepared by NEERI as per the

Terms of Reference (ToR) given by the State Environmental

Appraisal Committee (SEAC), Gujarat and the objectives and

scope of the study, environmental baseline status of the

project area and anticipated impacts on the environment

46

during and after the proposed barrage construction. An

Environmental Management Plan (EMP) has also been outlined

in relation to physical environment, biotic/ abiotic and socio-

economic components of environment during pre-construction

phase, construction phase and post-construction phase. A

comprehensive Environmental Monitoring Program is

recommended for minimizing the negative impacts and

maximizing beneficial impacts. A detailed Corporate Social

Responsibility (CSR) plan with appropriate budgetary

provisions together with Risk Assessment and Disaster

Management Plan especially dealing with flood hazards have

also been delineated.

(2) NEERI’s Report stated that proposal for construction of

Bhadbhut barrage on river Narmada has emanated in response

to people's demand as voiced through representations at

various levels by public figures from several social streams.

The planning of the project has been carried out in respect of

location and engineering features on consideration of technical

feasibility and maximizing benefits in terms of preventing the

problems of salinity ingress and thereby deterioration of

ground water quality, storage of good quality river water for

irrigation, domestic and industrial water supply, flood

protection of low lying area on left bank of the river and road

connectivity between left and right banks. NEERI report

concluded various benefits of the project and no significant

environment repercussion and in effect, a long-term social and

environment promoting project.

(3) EAG accepted the NEERI’s report on EIRA as the same is

required for Environment clearance requirement.

47

Minutes for Agenda Item No. 26 (b)

CRZ clearance for Bhadbhut barrage project

(1) Kalpasar Department has prepared the detailed proposal for

CRZ clearance. DR. Nema made presentation and explained

CRZ applicability as per CRZ Notification by MoEF dated 6th

January 2011 for Bhadbhut Barrage Project. He further

explained that based on examination for CRZ clearance

proposal carried out by CWPRS, Pune, one of the agencies

specified by MoEF. CWPRS’s report concluded of contextual to

the provisions regarding salinity of 5 ppt during the driest

season of the year and also exception to the measures for

checking tidal salinity ingress in CRZ notification, 2011, the

proposed barrage does not in any way violate the provision of

the said notification. Further, EAG was appraised with the

application/proposal for CRZ clearance of Bhadbhut barrage

and also, as per the guidelines, the application/proposal for

CRZ clearance of Bhadbhut barrage is being submitted to the

Gujarat State Coastal Regulation Zone Management Authority

(SCRZMA) for obtaining CRZ clearance along with the

prescribed documents and necessary fee.

(2) EAG took note of the proposal and actions initiated by

department for obtaining CRZ clearance.

48


Formulation of fishery policy in consideration of implications

of Bhadbhut barrage on fisheries

(1) Mr. B. K. Raijada, Fisheries Consultant, made a presentation on

proposed fisheries policy related to Bhadbhut Barrage. He

explained following:

a) Provisions of fish ladder and navigation lock/crane in the

design of barrage are to be ensured for unobstructed

movement of migratory fish species and fishermen

boats across the barrage.

b) Provision to sea set up hatcheries of Hilsa, fresh water

prawn and river fishes to produce and ranch fish seeds in

estuarine and fresh water are to be ensured. Such

hatcheries will have to be set up, managed and operated

by the state fisheries department, since they have the

expertise introduction of fish seeds will enhance

livelihood of local fishermen.

c) Budgetary support for setting up of above hatcheries be

provided by Kalpasar Department.

d) Preservation of fishing rights of local fishermen in the

barrage needs to be ensured.

(2) Looking to the fishermen views on obstruction to migratory

spices, as well as fishing boats; enhancement of livelihood and

preservation of traditional fishing rights in the barrage, the EAG

agreed with provisions made for Fish ladder and Ship-lock/

crane. EAG also took note of the actions initiated by Kalpasar

Department in consultation with Fishery Department/ Board as

stated above.

49

Minutes of Agenda No. 28(a)

Consideration of Final Report of the Project “Survey and

Assessment of Mangrove Population of the Gulf of Khambhat”:

1.0 CSMCRI has carried out survey and study of Mangrove

plantation in and around the area of proposed Kalpasar Project.

Dr. Chikara, CSMCRI, Bhavnagar explained that the final draft

report covers the details of Mangrove sites in each district, area

of Mangrove, halophytes density, ecology and soil

characteristics. It also covers the cost estimates, policy, and

requirement of consideration of relocation of Mangroves etc. for

plantation. Total 8847 hectares of Mangrove plantation may

affect after creation of fresh water reservoir in proposed

Kalpasar Project. CSMCRI stated that the scientific

rehabilitation of Mangrove plantation in the potential area will

increase the Mangrove cover significantly and will also improve

coastal bio-diversity and environmental ecology. The CSMCRI

has identified 16,759 ha potential areas for fresh Mangrove

plantation with an estimated cost of Rs. 44,000/ha for

plantation.

2.0 The Gujarat Coastal Zone Management Authority is the main

Govt. body to monitor the progress of Mangrove plantation.

The Mangrove plantation in Gujarat is being carried out by

various agencies through Gujarat Ecological Commission

(GEC). Hence, rehabilitation of Mangrove can be carried out

through GEC or alternatively CSMCRI services can be availed.

The CSMCRI has also agreed to work as nodal agency for

Mangrove rehabilitation.

50

3.0 EAG expressed the satisfaction over the study, survey &

collection and reporting the details of Mangrove plantation by

CSMCRI and its draft final report. The EAG also agreed to

take services of CSMCRI as Nodal agency to take up

rehabilitation of Mangrove plantation proactively in a phased

manner as a part of Kalpasar Project.

EAG also suggested for completing 16759 ha of Mangrove

plantation in a period of ten years or before completion of the

project whichever is earlier. EAG agreed with the proposal of

department to commence 100 ha mangrove plantation in 1st

phase under the guidance of CSMCRI through GEC,

Gandhinagar but subject to the compliance of any procedural

requirement/approval.

Minutes of Agenda No.28 (b)

Study of present status of Saltpan and assessment of social,

economical and environmental impact (positive and negative)

in context to the proposed site of the Kalpasar reservoir:

1.0 The CSMCRI has carried out survey and study of saltpan

located on peripheral area of proposed Kalpasar Project and

submitted draft final report. Dr. Ajay Bhatt from CSMCRI stated

that 123 saltpans of Gandhar, Dahej, Hansot, Paniyadra,

Jambusar, Dholera, Bhavnagar and Khambhat are located in

peripheral area of the proposed fresh water reservoir. Each

saltpan in respect of (a) Location, (b) Area, (c) Salt production

capacity, (d) Quality of salt, (e) Ground level of saltpan, (f) Soil

characteristics, (g) Ground water quality, (h) Alternate

51

job/earnings and rehabilitation for laborours including health,

economical and social aspects are analysed in detailed report.

2.0 The CSMCRI has collected data and information from saltpan

association/ company / individual units, officers of state

government and industrial commissioner of salt. These data

used for working out socio-economic impact, alternate

potential/ suitable sites for relocation and uses of saline land

for aquaculture etc in draft report. The draft report stated that

the negative impact on the saltpan is meager as compared to

the benefits accured by the society at large due to the

implementation of the project.

3.0 While agreeing with the draft final report of CSMCRI, the EAG

suggested that it would be desirable as well as in the interest

of the project, if the lease agreement of saltpan is granted by

Government only after consultation with Kalpasar Department.

The lease period extension needs to be restricted to five years

in place of 10 to 20 years at present. Kalpasar Department

should immediately take follow-up actions in this regard in

consultation with Department of Industries and Mines.

EAG Observed that the extension to study work would be

needed upto 2012-13 or till the MoEF clearance for EIA/SIA

report of the Kalpasar Project. CSMCRI-Bhavnagar agreed to

provide all relevant details required for MoEF clearance and to

continue the study work up till MoEF clearance of the project

without charging any extra cost to Kalpasar department.

52

Minutes of Agenda No 28 (c)

Assessment of Baseline Environment Quality and Social Status

of Kalpasar Project

1.0 Dr. S. Basha of CSMCRI stated that baseline study included

(1) Components as water, air, environment, (a) Coastal water

environment, (b) Sediments, (c) Ground water quality,

(d) Land environment, (e) Noise, (2) River and estuarine. Most

of the primary data are collected by CSMCRI except secondary

data on groundwater quality, Ideography, Infrastructure

sources, medical criteria & health aspect, metrological data and

fisheries. CSMCRI – Bhavnagar has submitted draft final report

on studies of baseline data for post monsoon, winter and pre-

monsoon season. This report has included relevant transects

and sample collection along with analysis for specified

parameters required for environmental and social aspects.

2.0 Dr. Nema and Dr. Pandey from NEERI, Nagpur suggested for

continuing the baseline data collection for further two years or

continuing the study upto MoEF clearance, as MoEF may ask for

fresh data. They have suggested while extending the data

collection for relevant parameters, CSMCRI should refer “Latest

draft Guidance Manual issued by MOEF for Environment Impact

Assessment and Clearance of River Valley Projects” and

Chapter no.9 of NEERI’s Scope of work for EIA and SIA studies

for Gulf of Khambhat Development Project, 2008. CSMCRI has

agreed for the same with fresh proposal for extension of work.

3.0 The EAG expressed their satisfaction on the base line data

collection and analysis of the data of environmental quality and

agreed with the suggestion to continue the baseline data

collection for further two years or till MoEF clearance as

mentioned in para 2.0 above.

53

Minutes of Agenda Item No. 29

Physical model of Bhadbhut barrage by Gujarat Engineering

Research Institute (GERI), Vadodara

(1) Physical model work for Bhadbhut Brrage across Narmada river

Nr. village Bhadbhut amounting to Rs. 4.27 Crores was

entrusted to GERI after obtaining the approval of Finance

Department. GERI has completed the construction of tray

portion of the model through the agency and Calibration /

Validation of the model is being taken up in consultation with

the group of expert comprising Shri R. D. Soni as Team leader

& other members. EAG members also inspected the physical

model study on 16/07/2012.

(2) EAG appreciated the physical model study carried out before

time by GERI. EAG also agreed with present system for

periodical review of physical model work by the group of

National Consultants.


Presentation of the study for comprehensive land

development plan for land that would be available under Gulf

of Khambhat Development Project (CEPT)

Prof. Shaswat Bandhopadhyay of CEPT University made the

presentation on the work done on preparation of the Base Map and

the Structure plan for an area up to RL 10m contour along the Gulf of

Khambhat. He mentioned that after damming the gulf, the tidal

fluctuation shall cease to happen and large tracts of salt intruded

waste lands can be converted, for productive use.

54

CEPT presented the international cases of similar projects from

Ijsselmeer, Netherlands and Saemanguem (Korea) and also the Palm

Islands (Dubai) owing to the components of creation of land from the

sea. Owing to multiple existing jurisdictions, CEPT suggested for

creation of an implementing authority for the region.

The regional location and the connectivity of the study area was

discussed. The project will be further reinforced with proposed

Dedicated Freight Corridor (DFC), container ports and Ahmedabad-

Bhavnagar Metro link through Dholera.

CEPT explained the process of base mapping, by joining the topo-

sheets, revenue maps of the villages and the satellite image, to

extract the land cover of the study region.

The demographic and the socio economic analysis of the region was

presented so as to understand the socio economically stressed

region. The infrastructure section discussed the findings of the

centrality indexing for social infrastructure and the assessment of the

transport corridors from the L&T Ramboll studies. The ground water

scenario and the waste management scenario were discussed on a

regional level. The projected population and the employment

scenario were discussed for 2030. A detailed SWOT analysis of the

study region was presented.

The necklace road along the gulf upstream of the dam was

suggested. Traversing a distance of almost 400 km around the

necklace road will open up new waterfront which will be almost 25%

of the entire state’s waterfront. The various possible activity patterns

in the study region were discussed along with their possible

locations. The various possibilities of generating finance from land

were explained.

55

EAG appreciated the work carried out by CEPT and accepted the

Inception report prepared by the CEPT University.

Minutes of Additional Agenda No. 1

Cost Estimate of Bhadbhut Barrage and Appurtenant Works

(1) M/s. SECON Pvt. Ltd. has prepared an indicative Cost Estimate

of Bhadbhut barrage and appurtenant works based on

Preliminary Design as per standard engineering practices

method. The separate estimates for each of the component of

the project has been prepared as sub estimate. The rates has

been adopted from Schedule of rates (SOR) of Vadodara

Irrigation Circle, Vadodara, for the year- 2008-09 for barrage

items duly inflated by 25% to arrive at present rates, SOR of

Vadodara, R & B Circle, Vadodara for the year- 2011-12 for

bridge and piles, and rates for mechanical items like vertical lift

gates, stop log gates, hoist arrangement, gantry crane etc. are

adopted from SOR of Karnataka State, Water Resources

Department, for the year 2011-12. As the Bhadbhut Barrage

Project is proposed to be implemented on PPP mode, two

components i.e. (1) Investment (Inflow) and (2) Revenue

(Outflow) are required to be assessed to justify the revenue

assessment of Rs. 3500 crores.

(2) The estimate includes the component such as (1) Barrage Body

Wall and Appurtenant Works (2) Bridge on left bank (3)

Overflow section (4) Approach Embankment (5) NOF between

barrage and bridge (6) Drainage on left bank (7) Embankment

(Right bank ) (8) Drainage Channel remodeling and (9) river

re-sectioning. The total cost amounting to Rs. 2743.89 Crores.

He also explained the Estimate of Flood Protection Wall /

Embankment (Left bank) with three options i.e. (1) Retaining

56

wall with Pile Foundation cost amount Rs. 1634.00 Crore

(2) Retaining wall with stone column (Left bank) cost amount

Rs. 1248.00 Crore, (3) Earthen Embankment (Left bank) cost

amount Rs. 168.48 Crore and worked out the Total Cost of the

Project with above three options separately. It was suggested

to consider option-3 i.e. the estimated cost of the project

amounting to Rs. 2932 Crores with Earthen Embankment on

left bank for the approval.

(3) After detailed discussion, EAG was of the opinion that the Cost

Estimate of Bhadbhut Barrage Project (amounting to Rs. 2932

Crores) with option of Earthen Embankment on left bank as

presented for the project could be considered for PPP mode.

However, it should be noted that while the EAG has agreed

with/accepted a proposal or a subject matter (including the

agenda item in question) as brought before it by the Kalpasar

Deptt; it should not be construed or interpreted or treated as

“sanction/approval” for the purpose of administrative and/or

financial rules of the Govt. for which the deptt. shall follow the

prescribed procedure/process.


Preparation of DPR - Bhadbhut Barrage Project

(1) Shri. T. N. Chaudhary, National Level Consultant to Kalpasar

Project presented the Detailed Project Report (DPR) of

Bhadbhut Barrage Project under PPP mode considering to adopt

the BOT option. He explained that the DPR has been prepared

as per the guidelines of CWC consisting of various chapters on

survey, investigation and other studies including cost estimates

and financial analysis, indicating the details of studies,

57

methodology, analysis and results carried out for the project,

to access the efficacy of the Bhadbhut Barrage. He further

explained that the outputs of the above various studies have

led to the tentative design of barrage as well as assessment of

indicative cost and revenue potential along with comprehension

of environmental and socio economic situations. He also

explained that the soundness of the technical planning and the

revenue earning potential of the project impart technical

feasibility along with environmental and socio economic

sustainability, and makes the project amicable to

implementation under PPP mode.

(2) After detailed discussion, EAG broadly agreed with the detailed

Project Report of Bhadbhut barrage. However, as pointed out in

the previous additional agenda item No. (1), the administrative

and/or financial procedure as required under the rules of the

Govt. of Gujarat shall be followed by the Kalpasar Deptt.


Tender Paper for Construction of Bhadbhut Barrage Project on

Public Private Participation (PPP) mode

Shri Thakkar, SE, PIU-2, Vadodara presented the details regarding

Draft Tender Papers for Construction of Bhadbhut Barrage Project on

Public Private Participation (PPP) Mode considering to adopt the BOT

option. He explained that for important projects, consultancy works

or high technology needed projects are being implemented by

tenders of Quality and Cost Based Selection (QCBS) consisting of

tender paper in two parts-(1) Request for Qualification (RFQ) for

short listing of eligible bidders and (2) Request for Proposal (RFP) for

58

invitation of financial bid, whereas Concessionaire Agreement (CA)

and Feasibility report will be Non-binding information of RFP in case

of the projects to be implemented on PPP mode.

M/s SECON Pvt. Ltd engaged for the consultancy work of establishing

feasibility including survey-investigation, preliminary design,

estimate, and draft tender papers for PPP and other studies for the

proposed construction of Bhadbhut Barrage Project, prepared the

draft tender papers as per Guidelines issued by Planning

Commission, Government of India with certain Consortium

Conditions, Technical Capacity, Financial Capacity, Operation &

Maintenance (O&M) Experience etc. SECON also drafted Request for

Proposal (RFP) for short listed bidders with prescribed Scope of Work

of Bidders, Concession Agreement (CA) for the Project (binding

agreement), Feasibility Report (not binding), Technical Specifications

and Drawings with certain Cost of procuring RFP document, Bid

security (@ 1% of project cost) in form of Bank DD or Bank

Guarantee as with validity of 180 days and Concession Period as 20

years.

The Grant/ Premium amount shall constitute the sole criteria for

evaluation of Bids. The Project will be awarded to the Bidder quoting

the highest Premium, and in the event that no Bidder offers a

Premium, then to the Bidder seeking the lowest Grant. Bidding

Parameters Option of highest premium/ lowest grant can be

considered for this project, as per Planning Commission guidelines.

SECON also drafted DRAFT CONCESSION AGREEMENT with

necessary provisions of Right of Way, access and licensee to the Site;

Finance and construction of the Project Barrage; Manage, operate

and maintain the Project Barrage and regulate use by third parties;

demand, collect and appropriate fee from vehicles and road users;

distribute water to industrial consumers and collect revenues from

59

them; neither assign, transfer, sublet, create any lien nor

encumbrance on this project. It also included the conditions

precedent required to be satisfied by the Concessionaire

Performance Security to the Department;

Escrow Agreement;

Substitution Agreement;

All the applicable permits;

executed the Financing Agreements;

a legal opinion from the legal counsel of the Concessionaire

with respect to the agreement enforceability

It also included Project Construction Schedule with certain milestones

prescribed, conditions for the services of Independent Engineer,

Commercial Operation Date (COD), Toll Road User Fee and Water

supply revenue.

EAG took the note of the proposal of Kalpasar department regarding

the draft tender paper provisions to be made for the proposed

construction of barrage under PPP mode having BOT model and also

advised the Kalpasar Deptt; to get the administrative approval and

financial sanction from the competent authority in the Govt. of

Gujarat by following the procedure as prescribed for this purpose.


Hazard Assessment Study for Bhadbhut Barrage Project

(1) Mr. Shiva Prasad of M/s. SECON Pvt. Ltd. explained in details

regarding variety of risks ranging from technical to operational

aspects for the proposed barrage project at Bhadbhut across

river Narmada. He explained various stages of risks - risk

identification, risk analysis and risk mitigation for significant

60

risks. He briefly explained risk of flood with the analysis of past

history of Narmada basin and mitigation of measures such as

provision of flood protection embankment, barrage operation

as per provision of flood memorandum, Disaster Management

Plan along with the details of physical facilities to be kept ready

on hand. He also explained pre and post project scenario. He

further explained the risk of morphological change in down-

stream estuary along with the details of mitigation measures.

Disaster Management Plan was elaborated during discussion

and explained the provision of Emergency Response

Organization, Emergency Response System, training of

personnel and dissemination of public information system.

(2) The EAG was apprised of the Hazard assessment study report

prepared by M/s. SECON Pvt. Ltd.

After dealing with all the agenda items as brought by Kalpasar

Department for consideration and, thus, having no other item for

consideration, the EAG meeting was concluded with the vote of

thanks to the Chair.

minutes of the 9th meeting of the expert advisory group ... · pdf fileminutes of the 9th...

Documents