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IWM
Boa
rd o
f Tr
uste
es (
BO
T) AboutAbout
Deputy Execu�ve Director (Opn)
Water Resources Planning
Irriga�on Management
Flood Management
River Engineering
Coast, Port and Estuary
Survey and Data
Deputy Execu�ve Director (P&D)
Strategic Planning
Human Resources Development
Quality Management
Research & Development
Informa�on Technology
ManagerAdministra�on
ManagerBusiness Development
ManagerAccounts and Finance
Board of Trustees
Execu�ve Director
IWM
Organogram of IWM
Ins�tute of Water Modelling (IWM) is a Trust established by the Government of Bangladesh in December 1986 to func�on as a Center of Excellence and Learning in the field of Computa�onal Hydraulics, Water Modelling and Allied Sciences. IWM owes its genesis to UNDP-DANIDA aided Surface Water Simula�on Modelling Programme (SWSMP) carried out during 1986-1996. IWM since has developed numerical models of rivers, estuaries and Bays covering en�re Bangladesh and applied in na�onal important projects. IWM offers a wide range of specialist state-of-the-art services in enhancing the quality of water resources planning and management as well as Hydrometric measurements, hydrographic and topographic surveys and monitoring.
Areas of Services Integrated Water Resources Management
Climate Change Modelling
Wetland and Lakes Management
Irriga�on Management
Ground Water Management
Urban Water Management
Water Quality & Ecology
Fluvial Hydraulics and River Morphology
River Engineering
Flood Management
Integrated Coastal Zone Management
Coastal Hydraulics and Morphology
Port and Coastal Structure Management
Estuary and Marine System management
Offshore Structure and Pipelines
Water Quality Inves�ga�on
So�ware Management and IT Solu�ons
Hydro-Geological Inves�ga�on
Topographic & hydraulic survey, sediment transport, water quality and hydrological, meteorological field measurements, necessary laboratory analysis and data management and mapping;
Any other field of area which may be conveniently and beneficially done through the facili�es of IWM.
All our services are supported by HRD Programme and ICT based DSS
IWM
Boa
rd o
f Tr
uste
es (
BO
T)Shaikh Md. Wahid-uz-ZamanSecretaryMinistry of Water Resources& Chairperson, IWM Board of TrustBangladesh Secretariat, Dhaka
Mr. Md. Habibur RahmanDirector General, BWDB& Treasurer, IWM BOTWAPDA Building, Mo�jheel C/ADhaka-1000
Mr. Md. Abdul QuddusChief EngineerRoads & Highways DepartmentSarak Bhaban, Ramna, Dhaka
Mr. Md. Wahidur RahmanChief EngineerLGED, LGED BhabanSher-e-Bangla Nagar, Dhaka
Mr. Md. ShahjahanDirector General (C.C), WARPOBanani, Dhaka
Engr. Md. NuruzzamanChief Engineer, DPHEDPHE Bhaban, Kakrail, Dhaka
Mr. Amalendu MukherjeeJoint Secretary (Banking Policy)Ministry of Finance
Mr. Khandaker Morad HossainJoint Chief, Irriga�on WingPlanning CommissionSher-e-Bangla Nagar, Dhaka
Mr. Karsten HavnoeManaging DirectorDHI Solu�onsDHI Water & Environment, Denmark
Engr. Md. Nurul HudaPresidentThe Ins�tu�on of EngineersBangladesh
Prof. Dr. Umme Kulsum NaveraHead, Dep�. of WREBUET, Dhaka-1000
Dr. Gholam MostofaChairman, Dhaka WASA& Managing DirectorACE Consultants Ltd
Ms. Lailun Nahar EkramPresident-Asian DevelopmentTechnology Centre& Managing Director– ECBL, Dhaka
Prof. Dr. M. Monowar HossainExecu�ve Director, IWM & Member Secretary, IWM BOT
It is my pleasure to convey my best wishes to Ins�tute of Water Modelling (IWM) on the publica�on of its Annual Report 2010. I am happy to observe that IWM has come a long way to establish itself as a prime ins�tute in the country as well as in the region, dealing with the complex technology of mathema�cal modelling, computa�onal hydraulics and allied sciences, and addressing many water-related problems of the country. I also appreciate that IWM has expanded its services to Malaysia, Tajikistan, Nepal with its state-of-the-art mathema�cal modelling tools.
Today’s success of IWM is backed by the dedica�on of its skilled human resources that has made possible to achieve the result-oriented solu�ons to complex hydrological, hydraulic and morphological problems of the river systems of the country. Over the last few years, IWM has only grown in strength to become a unique organisa�on in the country. I have been informed that the year 2010 was tagged as a year of success as the biggest ever project in IWM was entrusted by Department of Public Health Engineering for mathema�cal modelling study for safe drinking water sources iden�fica�on in 148 pourashavas.
Due to geographical loca�on of the country, Bangladesh has to face frequently lot of water related challenges and the country has become vulnerable to flood, draught, cyclone, river erosion, and other natural disasters. IWM developed models by using state-of-the-art technologies, significant development has been made to address lot of these challenges as more government and non-government agencies of the country as well as donors con�nue to consider IWM as one of the most reliable ins�tu�ons in devising sustainable solu�ons to these complicated water-caused hazards.
Being the Chairperson of IWM Board of Trustees, I am happy to know that new agencies and departments are considering IWM to use the mathema�cal modelling service for their projects. At the same �me I have also been informed that the resource constraint and a high turnover rate has now become a big challenge for IWM. I trust that, by devising sustainable mechanism to a�ract and to retain human resources, IWM will be able to address the problem in the coming years.
The Ins�tute organised a number of na�onal and interna�onal seminars /workshops including climate change issues and the use of mathema�cal modelling in IWRM which were a�ended largely by the user and the client community. It is encouraging to note that IWM has been con�nuously pursuing HRD to improve its staff resources with the latest update. I expect that the development partners will come up to fund the planned HRD programmes in the coming years.
IWM’s linkage with other educa�onal and research ins�tu�ons in the country and abroad is con�nuing. These famed ins�tu�ons include BUET (Bangladesh), DHI (Denmark), AIT (Thailand), HR Wallingford (UK) and UNESCO-IHE, the Netherlands, Tuffs University and Tennessee Technological University (TTU), USA.
I would like to thank the members of the Board of Trustees of IWM for their generous contribu�on and con�nuous support over the years. I also extend my best wishes to the commi�ed staff of IWM for their efforts in enhancing the image of the ins�tu�on and country. I wish IWM a bright future.
Shaikh Md. Wahid-uz-ZamanSecretaryMinistry of Water Resources&ChairpersonIWM Board of Trust
Message from the Chairperson
mmm
It is my immense pleasure to hand over the IWM Annual Report 2010 to our valued clients, well-wishers, stakeholders and other fellow professionals. IWM considers the year 2010 as a year of success with accomplishment of a number of significant projects of na�onal interests including mathema�cal modelling study for safe drinking water sources iden�fica�on in 148 pourashavas as well as interna�onal experience in Tajikistan, Nepal and Malaysia. As the global recession started to recede in the year 2010, it had a posi�ve impact on the business of IWM. IWM could make good use of the �me in undertaking a number of research projects carried over from the earlier years.A review of the ac�vi�es by various divisions is briefed below:Flood Management Division carried out a number of projects to Support to the Na�onal Flood Forecas�ng and Warning Services in Bangladesh Under Assistance of the Climate Change Adapta�on and Disaster Risk Reduc�on Program under DANIDA assistance, developed hydrological, hydrodynamic and flood forecas�ng model of the Bagma� river basin in Nepal to enhance the capaci�es in managing flood and climate risks u�lizing latest advances and the state-of-the-art technologies, carried out Mathema�cal Modelling Survey and Inves�ga�on for the Tarail Pachuria Flood Control, Drainage and Irriga�on Project (Phase-II).Water Resource Planning Division signed a contract with DPHE for its biggest ever project �tled mathema�cal modeling study for safe drinking water sources iden�fica�on in 148 pourashavas, Prepara�on of the Sewerage Master Plan for Dhaka City has been taken up, water supply and environmental engineering ac�on research project has been taken up and carried out pilot study on ar�ficial recharge to upper Dupi�la aquifer by rain water harves�ng from building roo�ops in Dhaka city. Coast, Port and Estuary Division con�nued with the modeling support for upda�ng hydrodynamic & morphological models to inves�gate land accre�on & erosion in the Estuary Development Program (EDP) area, carried out “Sustainable Drainage and Flood Management of Kobadak River Basin under Jessore & Satkhira Districts” to manage the long standing drainage conges�on problem.Irriga�on Management Division conducted groundwater resources studies for Barind integrated area development project – Phase III, carried out HYSAWA study for coastal salinity in towns in the coastal area.River Engineering Division Carried out mathema�cal modelling for offtake management of the New Dhaleswari River and hydraulic monitoring of New Dhaleswari-Pungli- Bangshi-Turag-Buriganga system, Mathema�cal Morphological Modelling for Gorai River Restora�on Project Phase-II.Survey & Data Division independently carried out water related survey for various projects including bathymetric survey for pre-work and post-work measurements of dredging for Gorai River Restora�on project, topographic, bathymetric and hydrographic inves�ga�on for detailed modelling and design of Sandwip – Urrir Char – Noakhali cross dam, hydrographic and topographic survey of the Kushiyara River near Bibiyana gas field for Chevron Bangladesh.As a part of regular ac�vi�es, robust HRD and training progrmmes were undertaken in 2010 for the staff development of IWM as well as technology transfer to various clients specially BWDB, DPHE, DWASA and RHD officials on understanding of model supported decision in project design and opera�on.At the end, I would like to express my gra�tude to all of our valued clients, associates and partners for their promo�onal support. I also like to thank our Trustees who always con�nued to extend their support and provide policy guidelines for development of the Ins�tute. Finally, I congratulate all IWM staff who have been serving IWM with dedica�on and sincerity.
Prof. Dr. M. Monowar HossainExecu�ve Director
From the Desk of the Execu�ve Directormmmm
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IWM
FLOOD MANAGEMENT DIVISIONFlood Management Division (FMG) provides support in hydrological assessments, designing of hydrologi-cal monitoring networks and informa�on systems, flood mapping, flood risk and damage assessment, real-�me flood forecas�ng and opera�onal water management systems, land use and climate change studies and flood mi�ga�on planning including design and opera�ons of hydraulic structures. The division has cu�ng edge technology, modelling tools on flood management, flood forecas�ng and climate change issues. The main strength is its sound experience in maintaining and updat-ing of all the Regional Models includ-ing the General Model developed under the three phases of Surface Water Simula�on Modelling Programme. One of the strengths of the Division is its technical capacity to support the FFWC of BWDB in its rou�ne flood forecasts during the past decades. The Division has recently developed the Ganges Brahmaputra Meghna (GBM) basin model capable to increase the lead �me of flood forecasts as well as a tool to see the climate change impacts and make water resources assessments on a regional context.
Modelling tools such as MIKE 11, MIKE GIS, MIKE FLOOD, MIKE BASIN, FLOOD WATCH, MIKE CLIMATECHANGE which are widely accepted world-wide, are being used in the Division to address a range of water management issues.
During the year 2010, among many of its undertakings, FMG contributed to five studies / programmes of na�onal and interna�onal interest namely, i) Assistance to Climate Change Adapta�on and Disaster Risk Reduc�on in the Northeast Region of Bangladesh ii) Mathema�cal Model-ling Study for Integrated Water Management Project of Gungaijuri Haor Area iii) Water Resources Development Project in Southwest Region with JICA iv) Mathema�cal modelling for Ganges Barrage Project and v) Development of Flood Forecas�ng Model for Bagma� basin of Nepal. In addi�on, the Division has devoted some �me and resources to train number of its professions in the field of disaster risk reduc�on, climate change modeling and advanced mathema�cal modeling technology for flood management applica�ons in home and abroad like India, Sri Lanka, Philippines and Denmark.
The implica�ons of climate change in Northeast region of Bangladesh are being inves�gated in the Assistance to CCA and DRR project. The Gungaijuri mathema�cal modeling study was designed to support the decision makers to understand and determine the cause and intensity of flooding and iden�fy suitable measures to manage flash flood, sedimenta�on and irriga�on problem in the Gungai-juri area in a comprehensive and sustainable way using mathema�cal model. The study inves�gated the op�ons for flood control and irriga�on improvement and determined the op�mum design parameters of structures
like drainage pump, regulator, embankment, rubber dam etc. The Water Resources Development Project of South-west area iden�fied the exis�ng and foreseeable problems for water resources management, the causes of the problems, the conceivable counter measures to remove or alleviate the causes, and iden�fied required interven�ons to secure an effec�ve water resources management using Fault-Tree-Analysis method. The prime objec�ve of the Bagma� Basin Project was to enhance capaci�es of Depart-ment of Hydrology and Meteorology (DHM), Nepal, to manage flood and climate risks u�lizing latest advances and state of the art technologies through development of a dedicated flood forecas�ng model of the Bagma� River basin.
During the year, FMG division organized several project based workshops to disseminate the study findings, op�on results to the end users for obtaining feedback from the stakeholders. The Division has organized technology transfer training programs for Engineers of Department of Hydrology and M e t e o r o l o g y (DHM), Nepal and Profession-als of Tajikistan working under the Khatlon Province Flood M a n a g e m e n t P r o j e c t , Tajikistan on flood manage-ment and flood f o r e c a s � n g u � l i z i n g mathema�ca l modeling tools.
Flood inunda�on for exis�ng and op�on condi�on of Gungaijuri area
Flood forecas�ng model development for Bagma� Basin, Nepal
Mathema�cal Modelling Study for Integrated WaterManagement Project of Gungaijuri Area
Base Condi�onMonsoon 20 Year Return Period
Mathema�cal Modelling Study for Integrated WaterManagement Project of Gungaijuri Area
Op�on - 1a Condi�on Monsoon 20 Year Return Period
Bagma� River Basin
Pachuwarghat
Nepalthok
Nijgadh
Chyuntaha
Malangwa
Pa�h
INDIA
To N
abig
anj
To N
abig
anj
HABIGANJ HABIGANJ
NIZAMPUR
Sujatpur
Bahubal Bahubal
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IWM The Government of the Kingdom of Denmark through the
agency DANIDA has been suppor�ng Bangladesh in the flood related Disaster Risk Reduc�on (DRR) ac�vi�es since 1995. In accordance with their con�nuous ac�vi�es, an agreement was signed between the Government of the Kingdom of Denmark and Ins�tute of Water Model-ling (IWM) on March 13, 2008 with the aim to establish a sustainable na�onal capacity for climate change adapta-�on and disaster risk reduc�on. The objec�ves of the study have been achieved by providing support to the Flood Forecas�ng and Warning Services (FFWS) by IWM in a collabora�ve process aimed at strengthening the Flood Forecas�ng and Warning Centre (FFWC), BWDB capacity under the future climate change perspec�ve. To ensure the support to FFWC in a collabora�ve process a tripar�te MoU has been signed on November 10, 2008 between the Embassy of Denmark (EoD), BWDB and IWM.
The present Danida supported study aims at strengthening CCA/DRR through improved forecas�ng and warning and awareness ac�vi�es in Bangladesh by fulfilling four immediate objec�ves: (a) Establish capacity to forecast warnings of salinity intrusion in coastal belt of Bangladesh, (b) Improved understanding of the poten�al impact of climate change on the hydrology of GBM basins and its consequence on floods and droughts, (c) Improved data collec�on through the use of mobile phone technology and (d) Improved flood warning dissemina�on.
The salinity model for forecas�ng the salinity of the selected pilot area in the southwest region has been developed but it has not been possible to disseminate the warnings due to unforeseen huge �me involvement in the development process. The salinity forecast mechanism has been developed and has been tested for genera�ng forecast for the pilot area. This would be installed at FFWC for such forecas�ng in future
For assessing the climate change impacts on Bangladesh the Ganges, Brahmaputra & Meghna (GBM) basins model has been updated and calibrated. The GBM model is capable of genera�ng flows of major transboundary rivers resul�ng from rainfall in the GBM basins. The study inves�-gated the probable impacts of climate change in flood and dry season flow in major rivers in Bangladesh u�lizing the GBM basins model and IPCC predic�ons/ available GCM results for the region. The study iden�fies the probable
impacts on the peak discharge due to climate change which is 5% for Brahmaputra and 10% for Ganges in 2080 under 4th IPCC predic�on, the resultant changes in flooding pa�ern has also been iden�fied.
Under the improved data collec�on system a mobile SMS
based data receiving system has been established at FFWC for collec�ng the real-�me water level and rainfall from flood monitoring sta�ons. In this system the gauge readers send the water level and rainfall data to FFWC by mobile SMS where all the data is stored in the data base a�er proper checking. This process replaces �me consuming manual data punching system a�er ge�ng the data through wireless or telephone. Under the Improved Flood Warning Dissemina�on component local level flood informa�on at pilot area at Belkuchi Upazila of Sirajganj District have been generated through developing a dedicated local level flood model. Flood forecast informa-�on generated for the pilot areas has been provided to Ac�onAid for dissemina�on to the local level using mobile SMS service. The performance of the flood forecast warnings generated for three pilot areas has been evaluated and it was found that the forecasts were sa�sfac-tory.
The project has also arranged number of training & technology transfer workshops and programs on salinity forecas�ng, GBM model & climate change issues, improved data collec�on and local level flood forecas�ng techniques. Moreover, the knowledge has been circulated through publica�on of brochures and workshops in local and interna�onal forums.
Support to the Na�onal Flood Forecas�ng and Warning Services in Bangladesh UnderAssistance of the Climate Change Adapta�on and Disaster Risk Reduc�on Program
1998 Flood Change in Flood DepthDue to CC (2080)
WEST BENGAL(INDIA)
WEST BENGAL(INDIA)
Major Dist. HQ
Changes in Flooding
Flood
TRIPURA(INDIA)
MAYANMAR
MEGHALAYA(INDIA)
ASAM(INDIA) WEST BENGAL
(INDIA)
WEST BENGAL(INDIA)
TRIPURA(INDIA)
MAYANMAR
MEGHALAYA(INDIA)
ASAM(INDIA)
B A Y O F B E N GA
L
B A Y O F B E N GA
L
Flood in 1998 Increase in flood due to climate change (2080)
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IWMUnstable steep slope, weak and fragile geological forma-
�on of young mountains along with heavy monsoon rainfall has made Nepal one of the most hazardous areas in the world. Because of its topographical varia�on and geologi-cal characteris�cs together with torren�al rain during monsoon season, the country frequently suffers from different kinds of water induced disasters like soil erosion, land slide, debris flow, floods, etc. These disasters cause loss of life and property and pose severe hazards to physical infrastructure resul�ng in the disrup�on of the social and economic development of the country.
Kathmandu valley frequently experience severe flash floods caused by heavy rainfall. A major flood disaster occurred in the Bagma� river basin in 1993 which was caused by the intensive rainfall in the central region of Nepal. The floods caused heavy damages to Bagma� barrage and the Kulekhani Hydropower Plant. Many villages and several bridges were washed away and the disaster claimed the life of 1336 persons and injuries to 163 persons.
In order to enhance the capaci�es of the Department of Hydrology and Meteorology (DHM), Nepal, in managing flood and climate risks u�lizing latest advances and the state-of-the-art technologies under Regional Integrated Mul�-Hazard Early Warning System for Africa and Asia (RIMES), IWM has been entrusted to develop a dedicated flood forecas�ng model of the Bagma� River basin. IWM jointly worked with RIMES and developed hydrological, hydrodynamic and flood forecas�ng model of the Bagma� river basin.
Under this study, the following ac�vi�es have been performed:� Development, calibra�on and valida�on of
hydrological and hydrodynamic model of the Bagma� basin;
� Customizing and valida�ng flood forecas�ng model by incorpora�ng high resolu�on long-lead weather forecast outputs produced by RIMES;
� Mapping flood risks for lower part of the Bagma� basin;
� Train and enhancing the DHM capacity on flood forecas�ng and forecast applica�on;
� Transfering model and technology to DHM
Outputs of the study� Flood forecas�ng model for the Bagma� river basin;
� Simula�on of past flood events successfully undertaken and results recorded;
� Customized, fine-tuned and validated flood modeling system for Bagma� basin, incorpora�ng high-resolu�on WRF outputs;
� Development of Digital Eleva�on Model (DEM) for the lower Bagma� basin;
Support to Strengthening Na�onal Capacity for Flood Risk Reduc�on andAdapta�on to Climate Change in the Bagma� Basin, Nepal
Flood inunda�on map of the lower Bagma� Basin 1993 (extreme flood)
Sub-catchments, river system and boundary sta�ons of the Bagma� model.
� Detailed flood risk mapping for Bagma� basin;
� DHM forecasters trained on flood forecast modeling using customized and validated flood model for the Bagma� basin as part of technology transfer;
� Customized and validated flood forecas�ng model and technologies, including manuals, transferred to DHM.
Support to Strengthening Na�onal Capacity forFlood Risk Reduc�on and Adapta�on to Climate
Change, Bagma� Basin, NepalFlood 1993
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IWM
Mathema�cal Modelling Survey and Inves�ga�on for the Tarail PachuriaFlood Control, Drainage and Irriga�on Project (Phase-II)
Tarail Pachuria Flood Control, Drainage and Irriga�on Project is located in the South-western region of Bangla-desh in Gopalganj Sadar, Tungipara and Kotalipara Upazillas under the district of Gopalganj. The gross and net area of the project are 21,300 ha and 16,019 ha respec�vely, of which, 50 % falls in Tungipara Upazilla, 31 % in Gopalganj Sadar Upazilla and the remaining 19 % in Kotalipara Upazilla.
Considering the demand of the local people and the neces-sity of improving the socioeconomic condi�on of the area, BWDB decided to undertake a mathema�cal modelling study including comprehensive survey and inves�ga�on for the en�re project area to evaluate the present project condi�on compared to that planned in the earlier feasibility study. Accordingly Ins�tute of Water Modelling (IWM) was entrusted through signing a contract agreement between BWDB and IWM in August 2010 to carry out the study for upda�ng the design parameters of the proposed interven-�ons.
The main objec�ve of the study is to devise the flood and drainage improvement plan in an integrated way along with improvement of irriga�on facili�es by making provision of surface water during dry season and protec�on of crops from saline water intrusion.
Ac�vi�es under the study
� Review of the exis�ng flood, drainage and irriga�on systems, iden�fica�on of problems and bo�lenecks;
� Prepara�on of base map for the project area based on the updated informa�on and data;
� Field data collec�on that includes survey of cross-sec�ons of rivers/khals, exis�ng embankments, route of proposed embankments, land level survey, hydro-logical measurements: water level, discharge, sediment and salinity;
� Development, calibra�on and valida�on of project model to address the problems regarding flood and drainage related problems;
� Prepara�on of flood depth-dura�on maps in without and with project condi�ons;
� Determine hydraulic design parameters for flood protec�on, drainage and irriga�on structures;
� Detail design of flood embankment, drainage and irriga�on structures;
A view of Project area
River System in the Model
� Assessment of surface water availability;
� Assessment of salinity in surface water in the area;
� Assessment of sedimenta�on in the project area using analy�cal approach based on available data;
� Organise workshop to share and disseminate study results, take feedback from stakeholders and finaliza�on of technically feasible and socially acceptable op�on for implementa�on;
� Repor�ng and presenta�on to client.
Project MapTarail Pachuria Flood Control, Drainage and Irriga�on Project (Phase-II) Legend
Bridge
Culvert
Flushing Pipe Sluce
Regulator
Regulator Cum Boatpass
Mazar of Bangabandhu
District HQ
Thana HQ
Road
Exis�ng Submergible Embankment
River & Canal
Project Area
Projec�on: BTM, Everest 1830
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201020102010
IWMWater Resource Planning (WRP) Division
operates in the areas of (i) water resources assessment, master planning and management at the na�onal, regional and local level, (ii) urban water management including water supply, sewerage and storm-water drainage, (iii) wetlands and lake management and (iv) water quality and ecology including conserva�on of bio-diversity and sustain-ability of the water eco-system. This division draws its strength from its exper�se to develop solu�ons from a holis�c point of view of the water resource management in both urban and rural areas developed through the experi-ence of working with mul�-sectoral teams.
WRP division uses a wide range of state-of-the-art modelling and analy�cal tools for its work. It has dedicated exper�se in applying MIKE11, MIKEBASIN, MIKE URBAN, ECOLAB, MIKEFLOOD, MOUSE; it also uses exper�se of other divisions for projects of wider scopes.
This division has provided solu�on to some of the very complex water resources planning and management problems. WRP has been involved in water supply, and drainage planning and analysis in Dhaka, Chi�agong, Khulna, Sylhet and Barisal through a number of projects with DWASA, KWASA, DPHE, ADB, the WB and JICA. Presently, WRP division is involved with the development of sewerage master plan for Dhaka city. WRP is also involved in the climate change studies for the Khulna city for ADB. The project studies the impact of climate change and probable adapta-�on measures for city u�lity systems. In recent past, WRP conducted a comprehensive study for the World Bank to inves�gate the Industrial Environmental Compliance and Pollu�on Control in greater Dhaka area. The study has iden�fied various sources of pollu�on of the surface water and groundwater sources and proposed mi�ga�on measures using state-of-the-art modeling technologies. One of the major achievements of the division is the development of a robust MIS for the DWASA. Through this project all available data of the DWASA water supply, sewerage and storm water drainage system has been computerized, the Dhaka water distribu�on system was modeled and a pilot demonstra�on of Automa�c Meter Recording (AMR) system was made. WRP has also been involved in na�onally important project like Ganges Barrage project for BWDB. A country-wide BWDB Scheme Informa�on Management System (SIMS) is now being developed under Water Management Improvement Project (WMIP) of BWDB.
WRP is involved in major groundwater studies in Dhaka, Khulna, Sylhet, Barisal and 148 Municipali�es
(Pourashavas) around the country. Groundwater study includes resource assessment, hydrogeological inves�ga-�ons, groundwater mapping, ar�ficial recharge, well field design etc. The Singair well field study for DWASA, conducted by WRP, proposes the largest well field for water supply in Bangladesh.
Major projects of WRP division also includes detailed feasibility study of the Mawa water treatment plant and Ashulia reservoir. The former plant will allow supply of 900 mld and the later 300 mld treated water to Dhaka city. The Mawa WTP will be the largest in Bangladesh,
WRP has conducted R&D projects in a number of areas like DSS for IWRM and inves�ga�ng the salinity intrusion process in the Karnafuli-halda system.
Apart from conduc�ng studies for various clients, WRP has also successfully organized several training programmes for engineers and other resource personnel of BWDB, KWASA, DPHE and DWASA. During the last year, WRP has supported three MSc. and a doctoral research.
Projects carried out by this division during the year 2010 are described in the following pages.
WATER RESOURCES PLANNING DIVISION
WRP is involved in major water supply, sewerage and storm-water drainage master plan & improvement studies in 148
pourashavas and major ci�es in Bangladesh
Barisal
Khulna
WRP is involved in major water supply, sewerage and storm-water drainage master plan & improvement studies in 148
pourashavas and major ci�es in Bangladesh
Barisal
WRP is involved in major water supply, sewerage and storm-water drainage master plan & improvement studies in 148
pourashavas and major ci�es in Bangladesh
Barisal
Khulna
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IWM
Ganges Barrage Project
Water is the lifeline for millions of people living in rural Bangladesh. Most of these people are dependent on land and water for life and livelihoods. The country’s economy is basically agrarian and is cri�cally dependent on the waters of rivers and distributaries. Of the three major river systems of the country, the Ganges Dependent Area (GDA) in the south-west and part of northwest regions of the country cons�tute about 37% of the total area of the country. About one-third popula�on of the country lives in this area. The two stages of the Ganges Barrage Project where IWM has been involved comprise the following – Stage 1: Detailed Feasibility Study and Stage 2: Detail Engineering Design. Among the assignments during the year 2010, there were three components IWM had to undertake: Comp 1 – Barrage and Flow Distribu�on Studies, Comp 2 – Polder Improvement Studies and Comp 3 – Project Formula�on/ Implementa�on Studies. The Stage 2 comprises the Detail Engineering Design, which was sched-uled to start from 2011. With a view to assess the probable consequences of the barrage prior to construc�on, mathema�cal modelling was planned in the project and IWM was solely engaged for this. Based on the experience of dealing with the morpho-logical behaviour of major rivers of the country, both one and two dimensional morphological models were carried out for the project. The morphological studies of the Ganges and the Gorai Rivers have been studied using two different modelling approaches. The long term morpho-logical impacts have been studied based on one-dimensional morphological model and the short term impacts by two-dimensional morphological model. This was done through the applica�on of the Curvilinear model MIKE21C for 2-D and MIKE11 for 1-D. To finalise the loca�on of the barrage, a two-dimensional model, stretch-ing from Indo-Bangla border to Chandpur including tributaries and distributaries was developed and used. For determining the design variables of various components of the barrage, a smaller model extending from Hardinge Bridge to the Aricha confluence was developed. Another important assignment on IWM’s part was to provide the boundary data to the physical model carried out by RRI which IWM duly delivered to the la�er. It is evident that given the intricate river system and the
complexity of opera�on of the barrage and other water control structures, it is important to use an integrated and robust modelling system to understand and analyse the impacts of different flood spills and flow diversion op�ons on water availability, flooding, drainage and salinity intrusion. For the purpose, the updated one-dimensional OGDA river model has been used. The OGDA model includes the en�re area of 4.6Mha under GDA. The OGDA model setup has been updated with cross-sec�on data obtained from the surveys conducted under the project in 2009-10. The model has been calibrated for the period 2008-09 hydrological years, and validated for the period 2003-2007.The OGDA model was used to study the water availability for with- and without barrage condi�ons at different loca�ons in the river system for various op�ons for withdrawal of water for irriga�on, salinity control, water supply, etc. The model supported in the assessment of flood/ drainage mi�ga�on measures based on various mi�ga�on op�on plans, which were later developed based on model results. The model facilitated op�misa�on of surface water and groundwater from exis�ng sources and from diversions under various op�ons. The study defined the quantum of flow to be diverted and the diversion loca�ons. The hydraulic design parameters, which are required for various water control structures, have been provided from the model results in terms of discharge and water level at the structure loca�ons. The OGDA model was also used to simulate the impact in the GDA area of the long term global climate change, which was represented in the model in terms of changes to rainfall, evapora�on and sea level rise.
Simulated Ganges River morphology in peak of monsoon, 1 in 100 flood event
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AnnualReport
20102010
IWMA�er the indepen-
dence of Bangladesh, Dhaka has become the capital city of the country and the popula�on of the city has been con�nuously increasing at a boom-ing rate. But as the development of sewer-age infrastructure is compara�vely more expensive, it never meets the demand of the City. In fact more than 70% of the City is not covered by piped sewer network. The overall environmental condi�on of Dhaka has at present reached a stage which can be detrimental to City residents.
IWM is presently involved in the prepa-ra�on of Sewer Master Plan for Dhaka city. The principle objec�ve of this project is: a) to have a detailed and comprehensive Master Plan for wastewater management and sanita�on system for Dhaka City, b) to formulate strategies for sanita�on and sep�c sludge manage-ment, c) to inves�gate the rehabilita�on of the exis�ng sewer networks including the trunk sewer, pumping and li�ing sta�ons and the wastewater treatment plant at Pagla in order to u�lize the exis�ng assets in an efficient way. The master plan shall cover the area described under DWASA Act 1996 plus any addi�onal area from the Detailed Area Plan (DAP) for Dhaka City.
The scope of work for the Master Plan has different tasks like: Growth and wastewater genera�on forecast, Exis�ng situa�on and service delivery gap, Sanita�on strategy and Master Plan, Priority investments and design and bidding document for priority investments. A sewer system model
will be build using SewerGEMS to perform analysis related to the above men�oned tasks.
Bangladesh Government is commi�ed to provide 100% sanita�on coverage to the ci�zens to keep pace with its Millennium Development Goal. The project will play an important role to fulfill that target.
Prepara�on of Sewerage MasterPlan for Dhaka City
Sewerage Master Plan for Dhaka City: IWM Concept 2004
Interna�onalAirport
Diabari STP
Baidertek STP
U�ar Khan STP
U�ar Khan
Mausaid
Tongi STP
Mohakhali
Merul Pump Sta�on
D N D C a n a l
Pagla STP
STP (Proposed)
Central Li� Sta�on
Li� Sta�onLi� Sta�on (Proposed)Special Manholeat North-South RoadArea to be Improved
Trunk Main LineTrunk Main Line (Proposed)Sub-main LineSub-main Line (Proposed)Damaged / Blocked / Undersized[To be Rehabilitated]Flow Direc�on (Proposed)Flow Direc�onPipe Diameter in mmService Area for STP
Legend:
Pagla STP
RoadRailwayEmbankmentNatural ChannelsRiver / Khal
Projec�on :Bangladesh Transverse Mercator (BTM)
1.5 Kilometers
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IWM It is a great challenge for
DWASA to ensure water supply in adequate quan�ty and quality round the year. In an effort to reduce the overwhelming dependence on groundwater resources for water supply, groundwater and surface water has been proposed for conjunc�ve use. Eventually DWASA has developed a strategic development plan to use alterna�ve surface water sources. The total water demand of the Dhaka city has been calculated approxi-mately at 2,470 MLD in 2009, which is predicted to increase to around 4,130 MLD in 2025.
The “Feasibility Study of Pagla/ Keranigonj Water Supply Project’ was launched in April, 2010 and completed in Dec, 2010. A 900 MLD Surface water Treatment Plant, the largest in Bangla-desh was designed by IWM for the project in two phases. In the first phase 450MLD treated water will be produced and in the 2nd phase 450 MLD water will be added to the system. The major objec�ve of the study is to carryout detailed feasibility study of the project which includes (i) Op�on study for Intake selec�on & WTP (ii) Assess dependable flow of Padma River (iii) Iden�fica�on of water treatment process (iv) Outline design of project components (v) Es�ma�ng cost of the project.
Extensive use of 2-dimensional morphological model has been done to inves�gate sedimenta�on in the intake, river bank stability and op�ons for bank protec�on works. Network models have been used to design the transmis-sion lines and booster requirement. One dimensional models have been used to generate long-term river discharge data at the intake site for dependable flow calcula�ons. Major efforts have been given to study water quality including sediment load to finalize the treatment process; field and laboratory model tests have been conducted by experts from BUET to design the treatment process. BUET experts also contributed to environmental impact assessment of the project; several op�on studies were made to select the most suitable loca�on of treatment plant and to iden�fy the route of raw and clean water transmission main; outline design of each compo-
nent structures of the project including cost es�mates were made; EIA, SIA and financial and economical analysis of the project shows that the project is economi-cally viable with no major environmental and social adverse impacts.
A twin trunk main of 32 km of 2100 mm dia was designed for treated water transmission to Dhaka city from the treatment plant located at Jashaldia. It was decided that the treated water transmission line would be carried along the Sreenagar-Dohar road, then the Sreenagar-Dohar bypass road, and then the Mawa-Dhaka highway, as shown the figure above.
The implementa�on of the project is planned over a period of 4 years. The Financial IRR is 10% and the project is financially at break-even at 10% rate of discount. The project is economically feasible at 11% rate of discount.
Feasibility Study of Pagla/ KeranigonjWater Treatment Plant Project
Proposed Infrastructure of Pagla/Keraniganj Water Treatment Plant
Proposed Infrastructure forPagla/Keraniganj WTP Project
LegendRiver/CanalProposed Padma BridgeRoadTransmission MainDWASA Pipe Line
Waterbody CrossingWTPInjection PointBooster Pump StationIntake Pump Station
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20102010
IWMDepartment of Public Health Engineering
(DPHE) has taken up a project en�tled Groundwater Management and TPP for Survey, Inves�ga�on and Feasibility Study in Upazilla and Growth Centre Level Pourashava having no Piped Water Supply System. In this connec�on, DPHE has appointed IWM to conduct Mathema�cal Modelling Study for Safe Drinking Water Source Iden�fica�on in 148 Pourashavas. The Project is very relevant to the country policy for water supply and sanita�on. It, along with other sanita�on projects in neighbouring countries, will synergis�-cally improve the regional environmental sanita�on situa�on.
The 148 Pourashavas selected for study are distributed all across Bangladesh. It involves people from various cross-sec�ons of the country where different livelihoods prevail and also the living style and standards varies. On the basis of a baseline status of the 148 Pourashava by DPHE, review was done for selec�on before the commencement of the study. The 148 Pourashavas iden�fied has no-piped water supply & faces various types of difficul�es arising out drainage condi�ons, solid waste management and sanita�on. All iden�fied Pourashavas has acute problem with safe drinking water supply either from contaminated SW source or arsenic / salinity contaminated GW source. The project will iden�fy avenues to explore suitable safe water supply either from GW / SW exploi�ng deeper aquifers or river water & small water conservancy project respec�vely. Alternate water supply such as Rainwater Harves�ng, Pond Sand Filter and Infiltra�on Gallery etc., will also be considered.
The project has two components viz., Mathema�cal Modelling for Safe Drinking Water Source Iden�fica�on (Component-I) & Socio-economic Study, EIA & Detail Engineering Survey & Inves�ga�on & Engineering Design (Component-II). Ins�tute of Water Modelling (IWM) in associa�on with BETS, BCL and SARM were awarded with the modelling ac�vi�es under Component-I of the project. The scope of work included under Component-I of the project are given below.
The objec�ves of the study project include the following:
1. Iden�fy safe source with regard to quality especially arsenic contamina�on.
2. Conduct feasibility study for determining groundwater/surface source to make sure about quality of water as well as to ensure perennial source.
3. Determine water demand and level of services and formulate design criteria to sa�sfy the basic needs.
4. Prepare a master plan for each town on water supply, sanita�on and drainage issues.
5. Carry out economic and financial analysis to determine the affordability of the beneficiaries and formula�on of cost recovery mechanism including tariff strategy.
6. Prepare investment project(s) by involving concerned stakeholders.
7. Prepare environmental impact assessment of the proposed project(s).
As indicated above the total 148 numbers of Pourashavas are included in the project. The project commenced on 17 January 2010 and is scheduled for comple�on by 42 months. The project is divided into 4 Phases. Till date the IWM and associates have completed source iden�fica-�on, drainage study, water supply network planning and modelling, topographic surveys and mapping in 49 pourashavas of Phase I & II. Work for rest on the 50 pourashavas in Phase III is progressing in full swing. Work on 49 pourashavas of Phase IV will start from July 2012 a�er comple�on of Phase III ac�vi�es.
Study for Safe Drinking Water SourceIden�fica�on in 148 Pourashavas
Study area (pourashavas) shown in red dots.
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AnnualReport
20102010
IWM Groundwater is the prime
source of water supply in Dhaka city, which is about 87% of the present total supply. This unusual aquifer pumping is endangering the aquifer environment and also becoming a threat to sustainability of the city itself. This threat is being developed because of imbalance in groundwater recharge and abstrac�on volume. Such situa�on should be avoided either by decreasing depen-dency on groundwater or by gradually increasing the ground-water storage volume by ar�ficial recharge to aquifer systems. Besides, Buriganga and Sitalakhya rivers are unsuitable as the source of water supply due to con�nued pollu�on. Considering the threat of groundwater mining, DWASA has decided to carrying out a pilot study on ar�ficial recharge to aquifer through rain water harves�ng. Accordingly the study on “Ar�ficial Recharge to Aquifer by Rain Water Harves�ng from Building Roof Tops in Dhaka City” has been assigned by DWASA to IWM on December 2009. The study dura�on is for 15 months period. The main objec�ve of this pilot study is to inves�gate the feasibility of ar�ficial recharge to upper Dupi�la aquifer within the city to protect aquifer environment and to augment present supply of water in Dhaka City.
IWM has selected Segunbagicha and Lalma�a DWASA compounds considering prevail-ing hydrogeological condi�on and scope of rainwater harvest-ing from roof top. For the purpose 15m2 and 14m2 recharge pits along with 1.3m thick three layer filter bed and 104m & 121m deep injec�on wells has been constructed at the two sites respec�vely. For collec�on and delivery of harvested rainwater into the recharge pit, necessary pipe network has also been constructed. During the last rainy season rainwater was harvested from selected roof tops for trial recharge experiment. IWM has also collected rainwater from spa�ally distributed 6 different loca�ons. Collected samples were analyzed for 25 parameters in BUET Environmental Laboratory. Through these experiments some important and interes�ng output has evolved. These are; Saturated and pumping part of the Upper
Dupi�la aquifer is the best depth loca�on for making ar�ficial recharge through gravity inflow in Upper Dupi�la aquifer system.Rainwater in Dhaka city has good quality standard for using in ar�ficial recharge to aquifer layers. In Segunbagi-
cha area, for ou�lowing recharge water through injec�on well by gravity, minimum 560 kPa hydrosta�c pressure is to be maintained inside injec�on well, while target aquifer layer has 57m depth to groundwater level, 0.127 specific yield and 21m /day permeability. If 60% of the total rainfall from concrete roof tops of the city area can be havested, then annually about 89,496 million liters rain water would be available for ar�ficial recharge to aquifer. This recharge volume, in return, can make available about 245 mld water for city water supply.
Pilot Study on Ar�ficial Recharge to Upper Dupi�la Aquifer byRain Water Harves�ng from Building Roof Tops in Dhaka City
Recharge Pit and Injec�on wells
Rainwater flowing in pit through perforated pipe
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AnnualReport
20102010
IWMRiver Engineering (REN) Division operates in the field of
river engineering and management and uses state-of-the-art mathema�cal modelling technology in the follow-ing areas:
• Fluvial hydraulics and river morphology
• Erosion management (river training and bank protec-�on works)
• Offtake management
• Naviga�onal route management
• Road/bridge infrastructure management
• Hydraulic structures including dam, barrage and regula-tor
• Cooling water intake for Power Plants
The division inherits its strength from its involvement, during more than 15 years, in the field of morphological modelling of more than 1,500km of large, meandering and braided rivers of Bangladesh including three major rivers - the Ganges-Padma, the Brahmaputra-Jamuna and the Meghna. It has dedicated exper�se in applying advanced morphological modelling so�ware – MIKE 21, MIKE21C, MIKE 21 FM and Del�3D.
Technical assistance to manage rivers - to realize the most of its beneficial uses and to minimize damages - is the core ac�vity of REN Division. Since the establishment of
IWM, REN has been playing vital role in dealing with the most unpredictable rivers of Bangladesh. However, the services are not limited to sa�sfying the domes�c clients but it has also entered into the Interna�onal arena, and is providing world-class analysis, advice and support in river engineering. REN provides comprehensive and sustain-able solu�on to the planners and designers of river management works with the applica�on of advanced mathema�cal modeling tools.
During 2010, REN contributed in a number of important road and bridge projects: Baniachang-Ajmiriganj Road, bridges on the Bangshi and Dewali Rivers, on the Kushiyara River Branch, on the Gorai River, on the Someswari River, on the Karatoya River, on the Maya River, on the Dhonagoda River, on the Karatoya River around Baradaha and Melandaha Bridge Sites, 11 large
bridges at different upazillas of Greater Barisal. Major outputs of the bridge projects were to determine suitable bridge loca�on and alignment, impact on hydro-morphological condi�on of the rivers due to implementa-�on of the bridges and recommenda�on for mi�ga�ve measures like bank protec�on/river training works, if any adverse condi�on were apprehended to take place.
Besides the small-scale bridge projects, REN with its exper�se and experience involved itself in many other projects, notable ones are:
• Mathema�cal Modelling Study for the Protec�on of the Padma Le� Bank around Sreenagar and Dohar Upazilla
• Hydrological and Morphological Study for the Proposed Re-excava�on of Old Madhuma� River under Gopal-ganj District
• Mathema�cal Modelling of the Ganges for Rajbari Town Protec�on Project
However, REN’s remarkable involvement during 2010 has been in some projects, which are considered na�onally important ones. These are:• Padma Mul�purpose Bridge Project
• Ganges Barrage Project
• Gorai River Restora�on Project Phase-II
• Ruppur Nuclear Power Plant Project
In 2010, REN also resumed working on upda�ng of monitoring program and forecas�ng of cri�cal hydraulic and morphological condi�on of the Jamuna River in the vicinity of Bangabandhu Bridge for the safety of the bridge during monsoon 2011.
With a view to provide support to the managers of the rivers, and designers of road, rail and bridges, REN has to work extensively. As such, basic and applied research programs are con�nuously conducted in order to maintain a high level of technical exper�se. A set of highly skilled professionals are engaged in sophis�cated numeri-cal modelling at REN; as such, their exper�se and knowl-edge are con�nuously updated and upgraded through on-the job training, seminars, and workshops at home and abroad.
RIVER ENGINEERING DIVISION
Right bank erosion of the Ganges at Habashpur Union, Rajbari Components of the Proposed Ganges Barrage overlaid on Recent Bathymetry of the Ganges River
Bed Level,mPWD
Undersluice
Navigation lock
HydropowerStation
2010
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20102010
IWM
Mathema�cal Modelling for Offtake Management of the New Dhaleswari River andHydraulic Monitoring of New Dhaleswari-Pungli-Bangshi-Turag-Buriganga System
Silted up offtake of New Dhaleswari
Bathymetry of New Dhaleswari River
The dry season flow of the peripheral rivers of Dhaka City is declining day by day. The conveyance capacity of the surrounding rivers is reducing due to sedimenta-�on and other hydraulic and morphological changes. Popula�on of the city is constantly increasing along with rapid and unregulated industrializa�on. Currently, more than 7,000 industries of various sizes operate within greater Dhaka area and produce more than one million cubic meter of heavily polluted industrial wastewater most of which is disposed to the rivers without treatment. With the increased socio-economic ac�vi�es and the reduced flow, the water quality of these rivers deteriorated significantly. Specially, the water quality of the Buriganga (on the bank of which the capital city Dhaka stands) degraded beyond tolerable limit. As one of the solu�ons to overcome the situa�on, Bangla-desh Water Development Board (BWDB) took up the Buriganga River Restora�on Project. The other solu�ons persuaded by the Government for improvement of water quality of the Buriganga are - removal of garbage already dumped in the river and stopping further dumping of untreated wastes (domes�c and industrial).
Under the Buriganga River Restora�on Project a minimum flow of 245 cumec will be diverted from Jamuna through the New Dhaleswari during dry spell of the year out of which 141 cumec will be contributed to Buriganga. This quantum of flow will be able to maintain the dissolved oxygen level of the Buriganga water at tolerable limit of 4 mg/l, provided removal of garbage already dumped and stopping of further dumping of untreated wastes are achieved. To accomplish the diversion of targeted quantum of water from the Jamuna, dredging/re-excava�on of the New Dhaleswari-Pungli-Bangshi-Turag system for 162.50 kilometer length along with a major regula�ng structure at the offtake has been thought of. Provisions of fish
pass and guide bundh have also been kept.
Ins�tute of Water Modelling (IWM) has been engaged by BWDB for Mathema�cal Modelling for Offtake Manage-ment of the New Dhaleswari River and Hydraulic Monitor-ing of New Dhaleswari-Pungli-Bangshi-Turag-Buriganga System. A contract between BWDB and IWM was signed on 11th January, 2011 for the assignment. There are two
Bed level (m)Above 2018-2016-1815-1613-1511-1310-118-106-85-63-52-30-2-2-0-3- -2-5- -3-7- -5-8 - -7-10 - -8Below - 10Undefined Value
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IWM
2010
dis�nct components under the contract. The Component-I is mainly study compo-nent having dura�on of one year (12 months). It comprises Mathema�cal Modelling for Offtake Management of the New Dhaleswari River and fixa�on of alignment of the Offtake Regulator, Fish Pass Regulator and Guide Protec�on Works. The Component-II comprises monitoring of execu�on of physical works in respect of their hydraulic performance and water quality monitor-ing. This component will con�nue for another 2(two) years with a total dura�on of the study as 3 years.
IWM has started working from the following day of signing of the Contract. In the mean �me, Incep�on Report has been submi�ed describing approach and methodology to be followed, study management and progress of the study. Relevant water level, discharge, rainfall, evapora�on data of the past has been collected. Bathymetric and bankline survey for a stretch of 20 km including the New Dhaleswari offtake has been carried out. Satellite images of the augmenta�on route are also available at IWM. Fresh water level, discharge and sediment data are being collected at selected loca�ons at the offtake and along the augmenta�on route for the current year that will be con�nued during the coming two years.
The one-dimensional (1D) model developed by IWM during the feasibility study of the project is being updated with the collected data to monitor the hydraulic performance of the proposed route during and a�er implementa�on of the project. The two-dimensional (2D) model is being developed using MIKE21C program with collected data and model boundary generated by 1D model to simulate full hydrodynamic and morpho-logical processes to assess the effec�ve-ness of the off-take management structures in terms of flow augmenta�on, erosion/deposi�on, and requirement of dredging at the offtake and along the augmenta�on route as part of annual maintenance. In addi�on, cross-sec�on surveys at 50 loca�ons along the augmenta�on route will be done before and a�er monsoon each year to monitor sedimenta�on. Execu�on of physical works is also monitored to correctly asses the hydraulic performance of the executed works.
New Dhaleswari- Pungli – Bangshi-Turag-Buriganga System
LEGEND
International BoundarySchematized RiverClosureSelected Augmentation
River
Bangabandhu Bridge
New DhaleswariSpill Channel Offtake
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IWM
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IWM
One of the major sources of fresh water flow in the south-west region is the flow from the Gorai that takes off from its parent river, the Ganges. Due to implementa�on of the Barrage in Farakka in the upstream in India in the year of 1975, the flow of the Ganges River started to decline. As a result of the reduc�on of flow of the Ganges, the flow through the Gorai river started to reduce and the river off-take got silted up hindering the passage of flow from the Ganges into the Gorai and in the downstream rivers. Such discon�nua�on of flow for several months puts severe stress on the environment of the south-west region where agriculture, fisheries, forestry, industry, and health and household ac�vi�es are greatly affected. A�er signing of the Ganges Water Treaty in 1996 between Bangladesh and India, the Government of Bangladesh undertook the Gorai River Restora�on Project (GRRP), Phase-I with assistance from the Netherlands and Belgium. The Gorai river was dredged star�ng from the off-take up to 20km in the downstream during the three successive years in 1998, 1999 and 2000 under a Pilot
Priority Works (PPW) programme. The maintenance dredging was not done a�er comple�on of the project in 2000 and the condi�on deteriorated again. Observing the adverse impact of the reduc�on of flow through the Gorai, Bangladesh Water Development Board (BWDB) has taken up steps to carry out dredging of the river for a length of 30 km from the offtake. The Government approved a DPP under the name “Gorai River Restora�on Project Phase-II (GRRP-II)” for this purpose.
Being entrusted by BWDB, Ins�tute of Water Modelling (IWM) has been carrying out mathema�cal modelling study since August, 2009 to support GRRP-II during
ongoing capital dredging opera�on. IWM would also provide support during maintenance dredging phase. IWM has been providing hydro-morphological modelling supports regarding this project.
For detail hydraulic and morphological inves�ga�on, both one- and two-dimensional mathema�cal modelling tools have been used. One-dimensional Modelling tool, MIKE 11, has been used to iden�fy the effec�ve dredging sec�on considering flow distribu�on through the Gorai. The core part of the study is the development and applica�on of two-dimensional morphological model of the Ganges-Gorai river system. The said two-dimensional model has been developed using MIKE 21 Curvilinear Model covering 50 km reach of Ganges and 30 km reach of Gorai Rivers. The following figure shows extents of the area that has been considered for the two dimensional modelling. Based on the model simula�ons of average flood (2005) & high flood (1998) situa�ons, dredging alignment has been selected from the offtake up to 30 km
downstream of the Gorai considering op�miza�on of capital dredging volume, orienta�on of the main flow channel of the Ganges, percentage of flow and sediment diverted to the Gorai, etc. Supports have been provided by IWM regarding spoil dumping loca�ons too. Several spoil dumping sites have been proposed by IWM through the modelling study.
During the first year capital dredging ac�vi�es, IWM is maintaining close contact with the project office and providing support, besides the men�oned ones, in delinea�ng changes in dredging alignment and spoil dumping loca�ons based on field condi�ons.
Mathema�cal Morphological Modelling forGorai River Restora�on Project Phase-II
Study area of the Ganges-Gorai River system
Hardinge Bridge
Gorai Railway Bridge
Proposed Ganges BarrageSite at Pangsha
Dredging Alignment at Gorai
Above 16.0
Bed level (m)
8.0- 16.0
6.0 - 8.0
5.0 - 6.0
3.0 - 5.0
2.0 - 3.0
0.0 - 2.0
-1.0- 0.0
-2.0- -1.0
-2.5 - -2.0
-3.0 - -2.5
-4.0- -3.0
-4.5 - -4.0
-5.0 - -4.5
-6.0- -5.0Below -6.0
Undefined Value
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20102010
IWMIrriga�on Management (IRM) division operates in the
field of irriga�on, drainage and groundwater for improved management of land and water resources for enhancing agricultural produc�on. Its main strength is drawn from its staff experienced in surface and groundwater model-ling for the na�onal water management plan, groundwa-ter management for urban and pre-urban areas such as Groundwater Management and Feasibility Study for 148 Pourashavas having no piped water supply and Khulna Water Supply Project, Groundwater assessment and zoning in North West region and for several command area development projects. IRM makes use of the most renowned modelling so�ware like MIKESHE, MODFLOW, MIKE11, MIKE-GIS, FEEFLOW, CROPWAT and HYMOS.
During the year 2010, IRM division signed one project: “Joint Ac�on Research on Salt water Intrusion in ground-water in the coastal area”. Besides this there are two ongoing projects under IRM division, these are (1) Groundwater Resources Study for Barind Integrated Area Development Project – Phase III and (2) Strengthening BMDA’s Capacity on Water Resources Manage-ment. IRM has also conducted study for two projects of Groundwater Management and Feasibility Study for 148 Pourashavas having no piped water supply and Khulna Water Supply Project during the year 2010.
Due to the na�onal interest of groundwater in the coastal region, IWM has taken up an ini�a�ve for ac�on research on salinity intrusion in groundwa-ter in the coastal area of Bangladesh jointly with a contributory partnership among the organiza-�ons like DPHE, HYWASA, Policy Support Unit (PSU), ITN - BUET and IWM where DPHE will play the key role to monitor the study and fund management. The main objec�ve of the joint research is to study i) the movement of saline front towards upland due to increase of human ac�vi�es, reduced dry period flow and climate change and ii) the movement of the saltwater interface in response to water-management factors. Accordingly, a MoU has been signed among the collabora�ve agencies on September 16, 2010. Subsequently a contract has been signed between DPHE and IWM on September 30, 2010.
A comprehensive model study has been carried out by IWM for groundwater resource assessment covering 25 Upzilas of Rajshahi, Chapai Nawabganj and Naogaon districts with an area of 7500 km2 which was limited within the geological structures up to 80 m depth. From that study, it was observed that during peak �me, groundwater table almost regains to its original posi�ons except some areas of Tanore, Dhamoirhat, Godagari, Gomastapur, Patnitala, Mahadevpur, Niamatpur and Nachole Upazilas. Considering the above facts, BMDA has been conceived to carry out deeper aquifer characteris�cs and groundwater model study including deeper strata for bringing more area under irriga�on in
resources constraint areas. In this regard, a contract was signed between BMDA and IWM on May 05, 2009. The main objec�ve of the study is to explore groundwater poten�al below 80.0 m in resource constraint and high Barind areas of Rajshahi, Chapai Nawabganj and Naogaon Districts to bring more area under irriga�on using mathema�cal modelling techniques. The objec�ve of the project is to develop the Management Informa�on System (MIS) which will store, view and analyze all types of hydrogeological data as shown in Figure 1.
HYSAWA has engaged IWM to conduct a study on “Strengthening BMDA’s Capacity on Water Resources Management”. The main objec�ve of this study is to Strengthen BMDA’s capacity to improve its understanding of the water resources and to develop a sustainable management of surface and groundwater resources in the project area. To accomplish with the above men�oned objec�ves a groundwater flow model for a pilot area has been developed through on the job and formal training to BMDA officials as shown in Figure 2
which includes Natore Sadar, Singra, Gurudaspur, Baraigram, Lalpur and Baga�para Upazilas of Natore district.
IRRIGATION MANAGEMENT DIVISION
Figure 2: Training to BMDA officials
Figure 1: MIS for BMDA
User Interface
# Hydro-geological Maps
# Groundwater Resources
# Surface Water Resources, etc
# Spatial Data
# Tabular Data
# Model Simulation results
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Groundwater Resources Studies For Barind Integrated AreaDevelopment Project – Phase III
Government of Bangladesh has undertaken several groundwa-ter based irriga�on projects in the North West region of Bangladesh. The successful implementa�on of these groundwater irriga�on projects depend on the reliable quan�ta-�ve and qualita�ve assessment of the groundwater resources. A comprehensive model study has been carried out for groundwa-ter resource assessment covering 25 Upzillas of Rajshahi, Chapai Nawabganj and Naogaon districts with an area of 7500 km2 (Figure 1) (IWM, 2006). The study findings were limited within the geological structures up to 80 m depth; beyond this depth, geological informa�on was not available. From that study, it was observed that during peak �me, groundwater table almost regains to its original posi�on except some areas of Tanore, Dhamoirhat, Godagari, Gomastapur, Patnitala, Mahadevpur, Niamat-pur and Nachole Upazilas. Resource constraints were observed for only Boro cul�va-�on in Dhamoirthat, Mohadeb-pur and Tanore Upazilas. In addi�on to these three Upazilas, resource constraints were also observed in Niamatpur and Patnitala Upazilas, if supplemen-tary irriga�on from groundwater is considered.
Considering the above facts, this project has been conceived to inves�gate deeper aquifer characteris�cs and groundwater model study including deeper strata for bringing more area under irriga�on in resources constraint areas. In this regard, a contract has been signed between BMDA and IWM on May 05, 2009. The main objec�ve of the study is to explore groundwater poten�al below 80.0 m in resource constraint and high Barind areas of Rajshahi, Chapai Nawabganj and Naogaon Districts to bring more area under irriga�on using mathema�cal modelling techniques. To fulfil the above
objec�ves an extensive field data collec�on program has been undertaken which includes test drilling, aquifer test, topographic and cross sec�on survey, salinity data collec-�on. Accordingly hydrogeological inves�ga�on upto 300m depth (Figure 2) has been conducted at 15 loca�ons upto October 2010 and 5 Nos. of aquifer tests have already been completed. Accordingly a model upto the depth of 300m is being developed for the high Barind area which will be updated with the data from the hydro-geological inves�ga�ons.
Figure 1: The Study Area
Figure: 1
Ground Water Resourcesfor
Barind Integrated Area Development Project - Phase III
Study Area Map
LegendInternational BoundaryDistrict BoundaryUpazila BoundaryProject BoundaryNational HighwayOther RoadRailwaySchematized RiverNon-Schematized RiverProblematic Area
Head Quarter LocationDistrictUpazila
India(West Bengal)
India(West Bengal)
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Figure 2: Test Drilling
The expected outputs from the study are given below:
� Poten�al recharge and groundwater resources of deeper aquifer in high Barind area;
� Spa�al distribu�on map of hydro-geological parameters for deeper aquifer i.e. hydraulic conduc�vity, specific yield, transmissivity etc in high Barind area;
� Lateral and ver�cal extent of deeper aquifer in high Barind area;
� Hydrostra�graphic cross sec�ons including deeper strata;
� Geo-referencing of all non geo-referenced DTWs and observa�on wells;
� Calibrated and validated integrated surface water-groundwater model including deeper aquifer in resource constraint and high Barind area;
� Upazila wise surface and groundwater resources in all districts (except Thakurgaon, Panchagarh, Dinajpur and Joypurhat) in North West region;
� Updated Management Informa�on System (MIS);
The objec�ves of the MIS (Figure 3) is to
� store, view and analyse all types of groundwater relevant data.
� generate dynamic report from MIS database on user’s criteria.
� introduce a GIS based project management informa�on
system.
Considering the func�onali�es and characteris�cs of data the
modules developed under MIS are i) GIS Interface for naviga-
�on through spa�al data, ii) General for naviga�on through
non-spa�al data, iii) MIS Report for dynamic report genera-
�on tools and iv) MIS Update tools for update or edit MIS
Figure 3: Proposed MIS
User Interface
# Hydro-geological Maps
# Groundwater Resources
# Surface Water Resources, etc
# Spatial Data# Tabular Data# Model Simulation results
Database
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IWM HYSAWA (Hygiene Sanita�on and Water Supply Project) of
Local Government Division under the Ministry of Local Government and Rural Development & Co-opera�ves has taken up an ini�a�ve for a study on salinity intrusion in groundwater (GW) in the coastal area of Bangladesh. In this context, a proposal for conduc�ng research on salinity intrusion in groundwater has been requested from IWM and BUET. In response IWM submi�ed a technical and financial proposal men�oning a study on the above theme through mathema�cal modelling. It was decided that the study would be undertaken for a small strip of area as a pilot case instead of the whole coastal region of Bangladesh. The study would be conducted jointly with a contributory partnership in terms of cash or kind or both among the organiza�ons namely DPHE, HYWASA, Policy Support Unit (PSU), ITN - BUET and IWM. IWM would lead the whole study and DPHE would monitor the study on behalf of the collab-ora�ve agencies. Accordingly, a MoU has been signed among the collabora-�ve agencies and IWM has been awarded the study through a contract between DPHE and IWM in September, 2010.
An area of 1577 km2 covering part of Khulna, Jessore and Satkhira districts has been selected for the study. The area covers Dumuria Upazila and partly Phultala, Khan Jahan Ali, Ba�aghata, Dacope and Paikgacha Upazilas of Khulna district; partly Abhaynagar, Manirampur and Keshabpur Upazilas of Jessore district; and partly Tala Upazila of Satkhira district (Figure 1). The Khulna City Corpora�on along with its adjacent area has been included in the study area for defining the model boundary.
The specific objec�ves of the present study includes assessment of extent of salinity in the aquifer, aquifer vulnerability with respect to saline front line, impacts of
sea level rise due to climate change in aquifer and changes in salinity distribu�on in the GW under different scenarios in the study area. Iden�fica�on of fresh water aquifers within saline GW zone, disaster resilient op�ons and development of human resources among the collabora�ve agencies have been included in the study. In addi�on, a socio and GW assessment for baseline and quality param-eters of surface water and GW are also included in the objec�ves.
The study period of 3-yr dura�on is based on the primary data surveyed both by IWM and DPHE and the secondary
data collected from different sources. IWM has to carry out cross-sec�on survey at selected loca�ons and made water level and �dal discharge measure-ments along with salinity measure-ments at some key loca�ons. DPHE will contribute in hydro-geological inves�ga-�on within the study area.
M a t h e m a � c a l model is a useful and tested tool to understand the baseline and different imposed condi�ons of water movement and solute transport through the porous medium for different scenarios. In the coupled MIKE SHE – MIKE11 modelling approach the general GW flow condi�ons of the study area is to be developed. The modelling so�ware,
FEFLOW which is a finite element 3D saturated-unsaturated density dependent system, will be used for this study to understand the physical dynamics of the river saltwater intrusion and its sensi�vity to various geo-hydraulic model parameters. The overall outcome of the study would be helpful in taking measures at planners and decision maker’s level for water resources management in the coastal area of Bangladesh. In addi�on, human resource development would also strengthen the capacity of collabora�ve agencies.
HYSAWA Study for Coastal Salinity inTowns in the Coastal Area
Figure 1: The project loca�on map
Figure 3.1: Project MapJoint Action Research on Salt Water Intrusion
in Groundwater in the Coastal Area
LegendObservation WellEvaporation StationRainfall StationHydrometric StationUpazila BoundaryRiverModel Area
MANIRAMPUR
ABHAYNAGAR
PHULTALA
KESHABRPUR
KHAN JAHAN ALI
TALA
DUMURIA
BATIAGHATA
PAIKGACHHA
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For an efficient management of water resources, especially concerning sustainable safe and adequate water supply in city areas groundwater modeling is of utmost importance as the water supply in most of the areas is dependent on groundwater. For assessment and development of groundwater resources mathema�cal model describing the condi�ons in the unsaturated and saturated zone of the subsurface together with rainfall, overland flow, evapotranspira�on and the condi�on of flow in the river, are required.
The present study will address safe drinking water supply based on long term water availability and demand for an efficient planning and management of water resources. To ensure the integrated management of water resource, a physically based distributed modelling system will be more realis�c and appropriate for addressing the following objec�ves:
� Long-term sustainable water sources planning and management for both the surface water and groundwater
� Determina�on of safe yield from different aquifer units
� Quan�fica�on of impacts of water abstrac�on
� Determina�on of design parameters of produc�on wells
The modelling area has been selected based on the availability of data and requirement of outputs. For be�er understanding of the dynamics of groundwater, total 20 Nos. of sub- regional models has to be developed as shown in Figure - 1 into which the updated data of specific pourasavas will be incorporated and fine tuned for calibra�on of the model. For addressing the surface water model, MIKE 11 module has been used where as for groundwater flow model the MIKE SHE along with FEFLOW/MODFLOW has been used. To model the sub – project area the following ac�vi�es will be performed:
• Collec�on of related maps and reports of the study area from the secondary sources.
• Analysis, processing and quality checking of hydrometric, hydro-meteorological, hydro-chemical, hydrogeological data, aquifer proper�es data collected from secondary sources.
• Collec�on, analysis, processing and quality checking of soil characteris�cs, seepage & percola�on rate, land use, crop calendar, cropping pa�ern and water use data from secondary sources.
• Computa�on of irriga�on water requirements for present and future condi�on.
• Development of models: groundwater model for each sub project area using updated hydrogeological and topographic data; surface water model was redefined according to the sub project area of
groundwater model for surface water augmenta�on.
• Calibra�on and valida�on of models. • Coupling of surface water – groundwater models.• Applica�on of models for various development
scenarios.• Assessment of available groundwater resource for
individual Pourasava.The expected outputs of the works under the proposed
study will be as follows: • Base map of the project areas using updated
informa�on. • A database containing cross-sec�ons of rivers,
hydrometric, hydrogeological, hydro-chemical and other related data etc.
• Available resources for individual pourasavas for ensuring future piped water supply.
• Formal training to DPHE officials on mathema�cal modeling.
• Reports for individual Pourasavas.
Groundwater Management & Feasibility Study For 148 PourashavasComponent 1: Mathema�cal Modelling for Safe Drinking Water Source Iden�fica�on
Figure1: Model Area
Groundwater Management and TPP for Survey, Investigationand Feasibility Study in Upazila and Growth Centre Level
Pourashavas having no Piped Water Supply System.
Legend :District H/QInternational BoundaryDistrict boundaryMajor riverNational Highway
Sundrban
Proposed Project Completed & On Going Project
Pourasha in Phases
BWDB,s Stations
1st Phase2nd Phase3rd PhaseFinal Phase
Water LevelWL & QGround Water StationsModel Boundary
Source :Department of Public Health Engineering (DPHE)
WEST BENGAL ( INDIA)
WEST BENGAL(INDIA)
M E G H A L AYA ( I N D I A )
ASSAM(INDIA)
TRIPURA(INDIA)
MYANMAR
2010
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IWM Coast, Port and Estuary Management Division provides its
services for risk assessment and disaster management, climate change impacts and adapta�on measures, planning and design of coastal infrastructure, naviga�on channel and harbour. Integrated coastal zone management, salinity intrusion, �dal river management, land reclama�on by engineering and biological interven�ons, coastal morphology, erosion management, dredging, navigability improvement, coastal drainage management, island and char development involving par�cipa�on of local community, temperature plume dispersion for selec�on of intake and ou�all of power plants are the major disciplines of CPE .
During 2010, CPE was involved in a number of na�onal and interna�onal projects on long term solu�on for drainage and sediment problems, salinity forecas�ng, risk maps for flooding and salinity intrusion for community risk assessment in the changing climate, land reclama�on, establishment of storm surge height for cyclone shelter construc�on and restora�on of natural breeding ground of Indian carps in the Halda river.
CPE division uses state-of-the-art mathema�cal modelling tools for finding the solu�ons of coastal zone management issues, viz; (i) MIKE21 HD for �dal hydraulics, wind and wave generated current and storm surges, (ii) MIKE21ST and MIK21 MT and MIKE21 FM for cohesive and non-cohesive sediment transport, erosion and deposi�on pa�ern and morphological changes in the coast, estuary and �dal rivers (iii) MIK21AD, MIKE11AD for salinity intrusion in the estuary and �dal rivers, temperature dispersion for inlet and outlet loca�on of power plant and water quality in the coast and estuary (iv) MIKE21 SW for wave climate and wave sta�s�cs for design of polder embankments and naviga�on channels. CPE has earned a good reputa�on in the na�onal and interna�onal ins�tu�ons namely NAHRIM, Zaaba consultant and DID Malaysia, GMAPS Singapore, World Bank, ADB, DFID, CDSP, BWDB, Mongla Port Authority and , Chi�agong Port Authority, and a number of Interna�onal agencies and local NGOS.
Climate change and sea level rise poses new threat to the water management of coastal zone and exis�ng coastal infrastructure. Occurrence of cyclone and cyclonic storm surge would be more frequent and intensive. The
challenge of decision makers to assess the poten�al impacts of climate change and sea level rise and devising adapta�on measures in a macro and micro scale for ensuring social and economic development of coastal zone. CPE is planning to expand its services in forecas�ng cyclonic storm surge inunda�on at local level for disaster management, assessment of impacts of external drivers of change water resources like popula�on growth, sea level rise on coastal resources, salinity intrusion, devising of poten�al adapta�on measures.
In 2010, CPE organized a number of workshops on risk zoning for storm surge, salinity and coastal flooding, land
reclama�on and restora�on of fish habitat. This division supported Master’s thesis of students of Dhaka and Chi�agong Universi�es and BUET.
COAST, PORT AND ESTUARY MANAGEMENT
Isohaline (Salinity) in the Southwest region of Bangladesh
Cyclone Shelter in the Coastal Region of Bangladesh
Collec�on of fish eggs from the Halda River
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The Meghna Estuary is hydro-morphologically very dynamic in nature. The upper and middle parts of the estuary are erosion-prone while the lower parts are accre�on-prone. The highest rate of deposi�on is seen in the Sandwip-Urir Char-Noakhali (SUN) area which is about 136Mm3/yr. Three �dal mee�ng points are present in this area where current speed is very low and natural accre�on is taking place. The Mainka-Montaz (MM) area
on south of Bhola is also accre�ng which is more than 46Mm3/yr.
Bangladesh Water Development Board (BWDB) engaged Ins�tute of Water Modelling (IWM) to study the exis�ng erosion-accre�on pa�ern and land reclama�on poten�als in the estuary. In this study the exis�ng Bay of Bengal model has been upgraded from rectangular mesh to flexible mesh using MIKE 21FM modelling system and has been updated with the recently surveyed data. The model has been used to ascertain the present h y d r o - m o r p h o l o g i c a l processes of the Meghna Estuary and simulate the impacts due to construc�on of cross-dams in the SUN and MM area.
Three poten�al cross-dam op�ons have been selected to accelerate natural accre�on process in the SUN area. The Op�on-3 covering all three poten�al cross-dams predict about 4,500 ha of land accre�on in 3 years and 11,000 ha in
7 years. Moreover the op�ons predicted no or negligible impact on drainage conges�on, erosion and navigability in the area.
A�er hydrodynamic simula�on of five different op�ons in the MM area one op�on has been taken for morphologic simula�on. This op�on comprise three poten�al cross-dams in the middle of Bes�n, Mainka and Montaz channels. These cross-dams will connect Char Montaz,
Char Rustom, Char Bangla and Char Islam with Bhola Island and enhance land accre�on. These cross-dams will also improve the communica�on and development of the char area.
Upda�ng Hydrodynamic & Morphological Models to Inves�gate LandAccre�on & Erosion in the Estuary Development Program (EDP) Area
Figure 1: Current speed map; Sandwip-Urir-Char-Noakhali (le�) and Mainka-Montaz (right)
Figure 2: Land Accre�on a�er 3-years with three cross-dams
2010
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More than a hundred years ago, the River Kobadak lost its fresh water connec�on with the Mathabanga river north of Taherpur and became a mere seasonal and �dal river.
As a result, the flushing flow from upstream has been reduced which expedited the silta�on process. In the early six�es the �dal flow of the Kobadak river used to flood and deposit the sediment on the adjacent flood plain during high �de. Human interven�ons such as encroachment of river by construc�ng bridge, houses, cul�vable area and construc�on of polders restricts the �dal flooding of the flood plain. As a consequence, the river experiences huge silta�on and many of the rivers/channels/khals in the area lost its conveyance causing severe drainage conges�on. Bangladesh Water Development Board commissioned the Ins�tute of Water Modelling on 18 May, 2009 to carry out the study �tled “Sustainable Drainage and Flood Management of Kobadak River Basin under Jessore & Satkhira Districts” to manage the drainage conges�on problem.
A comprehensive field survey, focus group discussions at different loca�ons in the study area, mathema�cal modelling, economic analysis, social and environmental impact assessment have been carried out in order to iden�fy prevailing problems and to devise measures for rejuvena�ng the Kobadak river system.
Considering the issues of sedimenta�on of river, removal of drainage conges�on and reduc�on of flood risk two (2) op�ons have been studied for sustainable drainage and flood management. The details of the proposed op�ons are illustrated in the following Table.
Both the op�ons have been analyzed using the state-of-the-art mathema�cal modelling. Op�on-1 has been recommended for implementa�on as a long-term
solu�on for drainage and sediment management in the Kobadak River basin since it is technically feasible, economically viable, environmental friendly and socially
acceptable.
It is recommended that TRM should be operated for at least 7 years or more depending on monitoring results for each beel. Crop compensa�on to the land owners of the beels for TRM opera�on should be given for the whole period of opera�on. Monitoring of sedimenta�on, erosion, �de, drainage condi�on in the beels, khals and river is required to assess the effec�veness of implemen-ta�on plan comparing it with the targets and iden�fying shor�alls and also to take mi�ga�on measures. Early implementa�on of Op�on-1 is crucial to ensure enhance-ment of agricultural produc�on, promote social and economic development and prevent environmental degrada�on. Involvement of local stakeholders and water management organiza�ons is important during implementa�on of the recommended measures and in the period of opera�on & maintenance (O&M).
Sustainable Drainage and Flood Management of the Kobadak RiverBasin under Jessore and Satkhira Districts
SL No
√ √√ √
√ √√ √
√ √N/A √
√ √
Table : Drainage improvement op�ons.
Drainage Improvements Measures
Capital Dredging for removal of deposited silt of Kobadak River (Km 75 to Km 160 and Km 182 to Km 187)Tidal River Management (TRM)Dwarf Marginal Embankment at specific loca�ons of Kobadak RiverRestora�on of Addi�onal Drainage RoutesRe-excava�on of 13 tributaries and internal khalsLoop cut (Magura Bazar to Jetua Bazar)Removal of Exis�ng Obstacles
1
2
3
4
5
7
6
Op�on-2Op�on-1
Decrease of water level in Op�on-1
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SURVEY AND DATA DIVISION
Survey and Data Division (SDT) of IWM conducts hydrographic and topographic surveys including collec�on of water quality and sediment data to support scien�fi-cally based management of river erosion, flood and irriga�on, water supply and sewerage. SDT also supports planning and implemen-ta�on of infrastructure in the communica�on sector, urban development, industry and energy sectors.
The specific areas of SDT ac�vi�es are: hydro-morphological survey including water quality and sediment in the rivers and estuar-ies, flood plain topography,
engineering survey and bench-mark installa�on in connec�on with the above surveys.
SDT uses the latest survey equip-ments like Total Sta�on, RTK-GPS, DGPS, Echosounder and Acous�c Doppler Current Profiler (ADCP) along with the relevant computer so�ware and facili�es to conduct the surveys. The surveyed data is promptly processed and analysed in the field and thus maintains a near-online quality control proce-dure. Such processing is also useful to support instant
decision-making in managing flood and river erosion at �mes of emergency. In the office the data is further verified by the senior professionals before transmi�ng it to the users and archived in the database for future applica�ons.
A set of mo�vated staff comprising high skilled professionals and field surveyors are engaged for the jobs. The knowl-edge and skills of the staff are con�nuously updated and upgraded through on-the-job training, discussions, seminars and workshops at home and abroad.
2010
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IWM Bangladesh Water Development Board (BWDB) has
undertaken a project “Gorai River Restora�on Project (Phase II)” to be carried out between 2009 and 2013 to prevent environmental degrada�on in the South West Region especially around Khulna, the coastal belt and in the Sundarbans. Ins�tute of Water Modelling (IWM) is suppor�ng BWDB through bathymetric survey for pre and post work measurement, providing support for fixing the dredging alignment, ensuring dredging as per design
alignment and sec�on, monitoring of flow through the Ganges and Gorai River and supplying data to the model-ling team. IWM successfully completed the monitoring and quality control of the 1st year capital dredging and is con�nuing support through quality control and monitor-ing of the 2nd year capital dredging conducted by the interna�onal contractor China Harbour Engineering Company Ltd. (CHEC).
Bathymetric Survey for Pre-Work and Post-Work Measurement ofdredging for Gorai River Restora�on Project (Phase-II)
Senior SDT staff from IWM par�cipa�ng in joint survey with CHEC
Observed discharge of Gorai at Gorai Rail Bridge
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The construc�on of Sandwip-Urir Char-Noakhali cross-dams is to be taken up for accelera�ng the natural process of land accre�on. In this regard, understanding of the hydro-morphological behaviour of the Meghna Estuary is crucial before undertaking any such project.
"Estuary Development Programme (EDP)" project was undertaken during 2008-2010 by Bangladesh Water Development Board to study possible projects at the poten�al cross-dam sites. The proposed cross-dam to
connect Sandwip, Urir Char and Noakhali will close the channels between Urir Char and Sandwip Island and Noakhali and Urir Char and accelerate the natural accre�on process of the area by obstruc�ng the strong �dal currents. The survey programme during pre-
monsoon of the year 2010 was necessary to be carried out to support the detailed design and dedicated model-ling work. IWM conducted huge data collec�on campaign around the Sandwip, Urrir Char and Zahajer Char Island. The important features included in the survey are BM fly to establish a consistent datum around the study area, river bathymetry, bank topography, water level, flow measurement, sediment sampling for the determina�on of sediment concentra�on.
IWM used the state-of-the-art equipment like Pressure sensor, ADCP, DGPS, Echosounder and digital level for the work which has been conducted at the most difficult places. The survey data was used successfully by the modelling and design teams.
Topographic, Bathymetric and Hydrographic Inves�ga�on for DetailedModelling and Design of Sandwip – Urrir Char – Noakhali Cross Dam
Discharge measurement in the channel between Sandwip and Urrir char
Water Level observa�on at Sandwip
2010
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Chevron Bangladesh has taken ini�a�ves to implement bank protec�on works along le� bank of Kushiyara River near North Pad of Bibiyana Gas field in the district of Habiganj to prevent erosion of the river bank. In this connec�on a survey of the surrounding area of the North
Pad is necessary to facilitate the mathema�cal model study as well as design of the proposed revetment work. IWM conducted the bathymetric and topographic survey in the Kushiyara River near the North Pad for design and
mathema�cal model for implementa�on of the proposed bank protec�on works. The survey work has been conducted from 15-22 October, 2010. The field ac�vi�es during the survey campaign included BM Fly, Bathymet-ric survey including bank topography, water level,
discharge, velocity and grain size analysis of bed materi-als, IWM used the-state-of-the-art equipments like total sta�on, DGPS, Echosounder and River Ray ADCP for data collec�on.
Hydrographic and Topographic Survey of the KushiyaraRiver near Bibiyana Gas field during monsoon 2010
Topographic Survey
Discharge observa�on
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Government of Bangladesh has undertaken several groundwater based irriga�on projects in the North West region. The successful implementa�on of this groundwater irriga�on projects depend on the reliable quan�ta�ve and qualita�ve assessment of groundwater resources. In order to make the projects sustainable and minimize any adverse impact on the environment, detail regional groundwater model study is essen�al.
In view of above, IWM carried out a collabora�ve research project for collec�on of hydro-geological data from different organiza�ons and determine hydro-geological parameters of the main aquifer for providing support to the decision makers in taking decisions for future groundwater development of the country.
The main objec�ve of the R&D project was to assess hydro-geological parameters for different regions of Bangladesh for an efficient planning and management of groundwater resources. The study would provide support to the planners and decision makers for groundwater development of the country.
Considering the na�onal importance of this project, this study has been carried out in collabora�on with BWDB, WARPO, BMDA, DPHE and BUET, the agencies which have a large amount of hydro-geological data, informa�on and knowledge. BWDB, BMDA, DPHE and WARPO have contributed with data and resource personnel for establishing the hydro-geological parameters. BUET has contributed by providing sugges�ons and guidance for quality output of the research.
Study findings: The aquifer proper�es and the maximum depth to groundwater level of Dinajpur, Thakurgaon, Panchagarh, Joypurhat and Rangpur have a prospect of drilling medium capacity DTW and STW in places, The aquifer proper�es and the maximum depth to groundwater level of Rajshahi, Naogaon, Chapai Nawabganj and Natore have indicated that aquifer has the prospect of drilling deep tubewell only and the aquifer proper�es and the maximum depth to groundwater level of the rest of the districts of Rajshahi division have indicated that aquifer have the prospect of drilling both shallow and deep tubewell. It may be concluded from the above findings about aquifer proper�es and suitability of the area for groundwater development.
Research & DevelopmentResearch & DevelopmentDevelopmentDevelopment
Determina�on of Hydro-geological Parameters for Different Regions ofBangladesh (North-West Region: Phase-I).
Spa�al Distribu�on of Hydraulic Conduc�vity (m/day) of the Study Area
A Sample of cross sec�on traversing in North-South Direc�on Upper Part
2010
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Collabora�ve Research on Flood Resilience inUrban areas (CORFU)
Collabora�ve Research on Flood Resilience in Urban areas (CORFU) is a major project involving 15 European and Asian ins�tu�ons, funded by a grant from the European Commission, Seventh Framework Programme. The overall aim of CORFU is to enable European and Asian partners to learn from each other through joint inves�ga�on, development, implementa�on and dissemina�on of short to medium term strategies that will enable more scien�fically sound management of the consequences of urban flooding in the future.
Each of the case study ci�es chosen by CORFU has been observed for many years with urban flood modelling and has an extensive record of urban flood management. The ci�es those are considered in this research are: Barcelona, Beijing, Dhaka, Hamburg, Mumbai, Nice, Taipei, Incheon/Seoul. The Asian ci�es represent some of the most important and flood-prone ci�es of the world. The research will give the opportunity to test the new methodologies comprehensively and to disseminate them among local ins�tu�ons, technical people, and ci�zens' groups.
The exis�ng condi�ons make Dhaka an important study area for the CORFU project. Recent advancements of flood risk management have iden�fied the elements and links that need to be considered for a sound management strategy. CORFU will explore these elements and links by focusing on risk, preven�on and management of urban floods which will include:
• Assessment of the drivers of flooding using economic growth model and urban growth model for Dhaka City. This will require proper understanding of City growth, planning and development which will be inves�gated in the research.
• Evalua�on of Dhaka drainage system performance based on these growth scenarios. State of the art drainage modelling will be used to assess Dhaka drainage system. IWM already has a model for Eastern Dhaka which will be extended for this study.
• Development of methodology to determine the impact of flooding considering demographic, land-use, socio-economic, health and infrastructural aspects. Currently no such methodology exists for
Dhaka City.
• Formula�on of appropriate flood risk management strategy for Dhaka City based on above assessments which will go beyond adapta�on and mi�ga�on measures and recommend preven�on, protec�on and preparedness against flooding.
The vision for CORFU is to use these differences to create synergies that will bring new quality to flood management strategies globally. Through a 4-year collabora�ve research programme, the latest technological advances will be cross-fer�lized with tradi�onal and emerging approaches to living with floods.
Other R&D Project Ac�vi�es in 2010 IWM con�nued to carry out the following R&D projects
during the year 2010.� Collabora�on Research on Opportuni�es of Water
Saving and Cost Reduc�on in Irriga�on Boro Rice by IRM Division of IWM and IWFM of BUET..
� Measurement and Analysis of Salinity of the Karnafuli-Halda River System.
� Development of DSS for IWRM.
� Development of Water Resources Management for Large Interna�onal River Basin using remotely sensed data.
� Study of possible impacts of Tsunami on the Coast of the Northern Bay of Bengal.
Work-frame of CORFU Project
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2010
Knowledge Based Informa�on System for Ganges Basin
IT & GIS
The World Bank has ini�ated a Strategic Basin Assessment of the Ganges Basin to establish a shared knowledge base and analy�cal framework to examine basin development op�ons from a regional water systems perspec�ve. To support this ini�a�ve, the Ins�tute of Water Modelling has been assigned to develop a knowledge base derived from water resources data and informa�on concerning the Ganges basin and available in the public domain. A shared knowledge base and appropriate analy�cal tools to model basin development op�ons can provide a pla�orm for the be�er understanding of the environmental, social, and economic implica�ons of regionally-important investments.
The Ganges river basin is spread across four countries, Nepal, India, China and Bangladesh. The basin encompasses an area of around 996,281 km2 and is home to about half a billion people. The basin faces considerable challenges and could have considerable opportuni�es from coopera�ve ac�on.
The regional risks that need to be addressed include floods, increasing low-flow demands, groundwater
over-abstrac�on as well as water logging, pollu�on, and high climate variability. In addi�on, climate change threatens the sustainability of the system through its poten�al impact on rainfall, temperature, crop water requirements, sea level rise, as well as snow and glacier melt. Working on these risks and opportuni�es requires a shared understanding of the Ganges system and development op�ons under various scenarios of the future in order to mobilize the broad-based poli�cal support necessary for regional ac�on.
Salient Feature of Knowledge Base Informa�on System of Ganges Basin:
• Hydrograph for Rainfall, Precipita�on, Discharge, Temperature and Evapotranspira�on of Ganges Basin
• Both sta�c and GIS Maps with layers of Ganges Basin,
• Searching facility for relevant archived documents
Sources of Data:
• Shu�le Radar Topographic Mission (SRTM) Digital Eleva�on Model,
• Tropical Rainfall Measuring Mission (TRMM),
• Climate Research Unit (CRU),
• Indian Ins�tute of Tropical Meteorology (IITM),
• Department of Hydrology and Meteorology, Nepal,
• Bangladesh Water Development Board (BWDB)
Knowledge Based Informa�on System for Ganges Basin is developed in web based architecture using following tools and technologies-
• PHP is used for presenta�on layer
• PostgreSQL/MySQL as RDBMS
• Apache as Web server
• MapServer as Web GIS server
• HTML, JavaScript, AJAX, CSS etc.
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Na�onal Management Informa�on System (NMIS) forWater Supply and Sanita�on (WSS)
Na�onal Management Informa�on System (NMIS) for Water Supply and Sanita�on is a Na�onal Level Integrated MIS-GIS system for water supply and sanita�on under Sector Policy Support of the Water Supply and Sanita�on Sector Policy Support Unit (PSU) of the Ministry of Local Government, Rural Development & Coopera�ves (LGRD&C).
NMIS is intended to provide DPHE with a live, up to date and secure web-based system through which to monitor access to safe drinking water and basic sanita�on informa�on, specifically web-based M&E System is intend to use as:
• Central repository of WSS data
• Storehouse and knowledge management tool
• Live access tool to log on and view textual and spa�al for any �me and at any loca�on
Along with other selected organiza�ons, IWM has been entrusted to carry out the assignment. Following are the main features cover in NMIS database:
1. Water Point
2. Water Treatment Informa�on
3. Water Quality Informa�on
4. Pipe Water Supply
5. Sewerage Informa�on
6. Sludge Disposal System
7. Pa�ent Informa�on
8. Sanita�on Informa�on
9. Development Partner Informa�on for WSS
10. Spa�al Data (GIS)
11. Demography
12. Public Health Informa�on
13. People Behavior
14. Overhead Tank
Figure 1: Web interface of NMIS
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Training and Technology TransferProgrammes in 2010
Training and Technology Transfer is a regular ac�vity of IWM aiming at upda�ng its resources and service users with the new knowledge and technology and to cope with the new challenges in the water sector. Following is the brief on the HRD programmes conducted in 2010.
Training on Hydropro So�wareThis course covered RTK-GPS and development of Local Geoid Model, Data edi�ng by HYDROpro so�ware, removing spikes and errors from survey data, water level correc�on and bench mark referencing to bathymetric data and expor�ng the data to different formats etc. IWM arranged this course in January 2010 for 9 Junior Engineers of IWM.
Workshop on regional climate change modellingThis course provided wide range of climate change modelling on regional context. This course was conducted by BUET in January 2010 where IWM nominated one professional.
Training programme on hydrodynamic and morphological model using MIKE21FMThis month long course was arranged for 2 NAHRIM professionals form Malaysia and was held at IWM during February-March 2010. The use of Modelling tool MIKE21FM for hydrodynamic and morphological modelling was covered in the course.
Training on Basic ArcGISThe course provided the par�cipants with a basic knowledge on ARC-GIS interface, GIS data edi�ng and capturing, spa�al analysis on GIS data along with other basic concepts of GIS and its integra�on with modelling.The programme was held in March 2010 for 12 new Junior Engineers of IWM.
Short course on environmental applica�on of remote sensingUnder the MOU between Tennessee Technological University (TTU) of USA and IWM, a 5-week short course on Environmental Applica�ons of Remote Sensing was conducted from May 10- June 15, 2010 at IWM. This training updated and developed IWM staff with the up-to-date knowledge and latest technological advancement in the field of Remote Sensing. This month long course was a�ended by 12 professionals of IWM.
Training Courses on Groundwater Modelling by DHI ExpertThis course was conducted by DHI expert. IWM arranged this course in 31 May- 10 June 2010 for its 9 mid level professionals.
Training on Tracing Experiment using Rheometer SystemThis course was conducted by Atomic Energy Commission and 5 IWM professionals received the training during 01-02 March 2010.
Short course on “Risk Management in Water Resources”Jointly organized by Directorate of Con�nuing Educa�on (DCE) in associa�on with the Ins�tute of Water and Flood Management (IWFM), BUET. 2 IWM mid-level professionals a�ended the course held during 13 - 14 March 2010.
Specialized course on Facing the challenge of climate change: Impact, Issues and Adapta�on strategies for Bangladesh with focus on water and sanita�on system
The course was conducted by ITN where IWM nominated one mid level IWM professional during 04 May - 06 May 2010.
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Short Course on ‘Dredging’Conducted by DCE, BUET where 4 IWM professionals received the training during 06-07 August 2010.
Training on MIKE SHE for NAHRIM Professionals in MalaysiaThis training course was conducted for NAHRIM professionals in Kuala Lumpur, Malaysia in April 2010 to transfer technology for the modelling tool MIKESHE.
Training programme on Basic Training Course: Hydrology, Open Channel Hydraulics, Mathema�cal Modelling
This course was conducted by BUET and was arranged for 21 nw Junior Engineers of IWM during 11 December 2010 - 08 March 2011.
Training course on Urban Rain Water Harves�ng SystemThis coruse was organized by WaterAid 24-27 October 2010. One IWM professional a�ended the course.
Training course on “Redhat Cer�fied Security Specialist (RHCSS)”Conducted by Odi�o Technologies Limited for 2 IWM professionals.
Training on HRM in MalaysiaOrganized by Malaysian Ins�tute of Human Resource Management (MIHRM) in Kulala Lumpur, Malaysia during 22-26 November 2010. Manager HRD a�ended the course from IWM.
Training on Use and Opera�on of Scheme Informa�on Management System (SIMS)This course was organized by IWM during 29-30 September, 2010 for BWDB professionals.
Training Course on Mathema�cal Modelling Concepts for BADC professionalsThis course was arranged for BADC staff during 04-07 February 2010 and 10 BADC officials received the training.
Training for DPHE and Pourashava Following training programmes were conducted for DPHE and Pourashava professionals in connec�on with Mathema�cal Modelling for Iden�fica�on of Safe Drinking Water Sources in 148 Pourashavas.
� Training on Topographic Survey and Hydrometric & Hydro-meteorological Data Collec�on. Held during 8-13 May 2010 & 22 – 26 May 2010 (2 groups) and a total of 34 DPHE & Pourashava Engineers received
the training.
� Training on Groundwater Modelling. Held during 15 May – 09 June, 2010 and 9 DPHE Professionals received the training.
� Training on Distribu�on Network Model: Held during 16–26 August, 2010 and 13 DPHE Senior Professionals a�ended the course. � Training on GIS, RS, MIS, Database. Held during 14 – 27 July, 2010 and 16 DPHE & Pourashava Engineers received the training.
� Training on Water Quality Sampling. Held during 20 – 23 September & 26 –29 September, 2010 (2 groups) and a total of 28 DPHE & Pourashava Engineers
a�ended the course.
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20102010
IWM IWM as the Lead Firm of the Joint Venture Consor�um
(JVC) of IWM with BETS Consul�ng Services Ltd., SARM & Associates Ltd (SARM) and BCL & Associates Ltd signed a project with the Department of Public Health Engineering (DPHE) �tled “Mathema�cal Modelling for Safe Drinking Water Source Iden�fica�on” under the ‘Groundwater Management and TPP for Survey, Inves�ga�on and Feasibility Study in Upazilla and Growth Centre Level Pourashava having no Piped Water Supply’ on 5 January, 2010 in the Conference Room of DPHE.
The contract was signed by Mr Monwar Ali, the Project Director & Superintending Engineer, DPHE and Mr. Emaduddin Ahmad, PEng, Team Leader of the project & Execu�ve Director, IWM in presence of Mr Md. Nuruzza-man, Chief Engineer, DPHE and other high officials and staffs of DPHE. Authorized Representa�ves from the JVC were also present at the signing ceremony. They were represented respec�vely by Dr Abdus Shabur Managing Director BETS Consul�ng Services, Mr Kazi M Huque, Director BCL Associates Ltd, and Mr H M Abdul Ma�n Managing Director, SARM & Associates Ltd. The Member of the Project Evalua�on Commi�ee (PEC) was also present during the contract signing ceremony.
The contract period of the project is 42 months commenc-ing from mid-January 2010. The project includes detailed level topographic survey, hydrometric & hydro-meteorological data collec�on including extensive hydro-
geological inves�ga�ons including establishment of monitoring system. The study would u�lize mathema�cal modelling for addressing iden�fica�on of safe water supply sources (surface and groundwater as well as alternate water supply sources), drainage and sanita�on issues in the 148 Pourashavas selected under the project. The project would also develop Master Plan and carry out Feasibility Study of the safe water supply, drainage and sanita�on of the men�oned Pourashavas under a separate component of the project awarded to another group of consultants in conjunc�on with the project awarded to the JVC of IWM-BETS-SARM-BCL Mr Emaduddin Ahmad, PEng. will lead both the components as the combined Team Leader.
As part of the review of the development collabora�on between IWM of Bangladesh and NAHRIM of Malaysia, a two member team comprising of the Execu�ve Director and Director, Coast Port and Estuary Management Division of IWM visited NAHRIM during 12 – 15 January, 2010. The review resulted in opportuni�es for sharing knowledge in the area of IWRM and Climate Change between IWM and NAHRIM. Professionals of both the organiza�ons came up with a view that while IWM having advantage of develop-ing models and decision support tools to reduce the damage from frequent natural disaster, NAHRIM can get benefit from the IWM experience working together. In connec�on with this, an agreement was signed between Urus Haidro & Mo�vasi and IWM for a pilot climate change work for NAHRIM. IWM has also agreed to host officials of NAHRIM for technology transfer at Dhaka.The IWM team has also visited DID and met the DG,
discussed with relevant professionals and consultants. The IWM team also explored the processing of IWM office in Malaysia.
Contract Signing of Project with Department ofPublic Health Engineering (DPHE)
Development Collabora�on between IWM and NAHRIM Malaysia :Contract Signed for Pilot Climate Change Study
Exchange of contract between IWM and DPHE
Mr. Hj. Ahmad Jamalluddin Saaban, Director General, NAHRIMhanding over NAHRIM Crest to Mr. Emaduddin Ahmad.
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IWMA team of high officials of Bangladesh Agricultural
Development Corpora�on (BADC) was appraised of the IWM ac�vi�es during a visit to IWM headed by Dr. S. M. Nazmul Islam, Chairman of the organiza�on on 14 July 2010. Mr. Emaduddin Ahmad, PEng, Execu�ve Director, IWM made a presenta�on to the guests on IWM ac�vi�es, its field of excellence and its achievements. The presenta-�on also covered how mathema�cal modelling helps to give solu�on to complex water related problems in holis�c approach including flood management, irriga�on manage-ment, coastal zone management, bridge hydraulics, groundwater management etc. The visi�ng team expressed their keen interest on the capacity and ac�vi�es of IWM. Dr. A.F.M. Afzal Hossain also presented to the visi�ng guests on the ac�vi�es of IRM division and its contribu�on to the na�onal development in the field of irriga�on and groundwater management.
BADC High Officials Applaud IWM Ac�vi�es
Member, Agriculture, Planning Commission Visits IWM
Ethiopian Minister Visits IWM
Presenta�on to BADC Officials.
The presenta�ons were followed by a lively ques�on and answer session. At the end, the Execu�ve Director presented IWM crest to the Chairman of BADC.
A four member Ethiopian delega�on headed by His Excellency Ato Mitkiu Kassa, Minister for State of Agricul-ture paid a visit to IWM on 2 December 2010. Mr. Abu Saleh Khan, Deputy Execu�ve Director made a presenta-�on to the guests on IWM ac�vi�es, its area of services and interests as well significant achievement of the Ins�tute. The Deputy Execu�ve Director focused on the use and excellence of mathema�cal modelling in the management of complex water related problems. A�er the presenta�on, a lively Ques�on and Answer session took place. The visi�ng team expressed their interest and appreciated the capacity and ac�vi�es of IWM.
Deputy Execu�ve Director presents IWM crest to the Ethiopian Minister
Dr. Md. Idris Ali Dewan, Member, Agriculture, Water Resource & Rural Ins�tu�on Division, Planning Commis-sion of Bangladesh visited IWM on 4 November 2010. Through a presenta�on by Mr. Emaduddin Ahmad, Execu-�ve Director the guest was informed about historical background of IWM and its ac�vi�es, area of service, its field of excellence and achievements.The presenta�on also covered the specialty and perfor-
Member, Agriculture, Water Resource & Rural Ins�tu�on Division,Planning Commission is briefed on IWM ac�vi�es.
mance of mathema�cal modelling to solve the complex water related problems in holis�c approach including flood management, irriga�on management, coastal zone management, bridge hydraulics, groundwater manage-ment, climate change modelling etc. The presenta�on was a�ended by Division Directors of IWM. Mr. Dewan visited different divisions of IWM and appreciated diversified area of services by different divisions. The Execu�ve Director presented IWM souvenior to the guest.
IWM crest to Member, Agriculture, Water Resource & Rural Ins�tu�on Division Planning Commission in presence of IWM Management Commi�ee.
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20102010
IWM Mr. Mobassarul Hasan, Associate Specialist, Coast Port
and Estuary Management Division a�ended the confer-ence on “2010 Interna�onal Climate Change Adapta�on Conference, Climate Adapta�on Futures & Preparing for the unavoidable impacts of Climate Change” held at Gold Coast, Queensland, Australia from 29 June to 1 July 2010. The conference was organized by Na�onal Climate Change Adapta�on Research Facility (NCCARF) and CSIRO Climate Adapta�on Flagship. Mr. Hasan presented a paper �tled “Impact of Climate Change Induced Cyclonic Storm on Coastal Island of Bangladesh”. The conference was one of the first interna�onal forums to focus solely on climate impacts and adapta�on. It brought together scien�sts and decision makers from a number of developed and developing countries to share research approaches, methods and results. It also explored the way forward
IWM professional par�cipated in 2010 Interna�onalClimate Change Adapta�on Conference in Australia
Mr. Mobassarul Hasan presents in the Conference
Mr. M. Hasan was selected for the best speaker award
IWM Professional Par�cipates in the Second Interna�onalDisaster Management Conference in Pakistan
IWM Professional Par�cipates in the 5th IPWG Workshop & Training in Germany
Mr. Abdulla Hel Kafi with other par�cipants (third from le� in the front line)
Mr. Md. Abdulla Hel Kafi, Junior Specialist of Flood Management Division, IWM par�cipated in the 5th Interna�onal Precipita�on Working Group (IPWG) Workshop and Training during 11-15 October 2010 in Hamburg, Germany. The workshop was jointly hosted by the Klima Campus, University of Hamburg, its Cluster of Excellence Clisap (Integrated Climate System Analysis and Predic�on) and the Max Planck Ins�tute for Meteorology (MPI-M). Along with the workshop, a satellite data and hydrology training programme was held during 12-14 October 2010, sponsored by EUMETSAT and hosted by KlimaCampus and MPI-M. The training programme covered precipita�on products, genera�on and extrac�on, soil moisture data genera�on from remote sensing, passive and ac�ve microwave sensors for precipita�on research, precipita�on algorithms, TOVAS system (TRMM), calibra-�on methods and ac�vi�es, precipita�on valida�on, H-SAF
Mr. Mobassarul Hasan, Associate Specialist, Coast Port and Estuary Management Division a�ended the confer-ence on “Second Interna�onal Disaster Management Conference (IDMC-2010) – Good Governance in Disaster Risk Reduc�on and Climate Change Adapta�on” held at University of Peshawar, Pakistan during 19-21 October 2010. The conference was organized by Centre for Disaster Preparedness and Management of Peshawar University. Mr. Hasan presented a paper �tled “Impact of Climate Change on Major Water Related Disasters in the Coastal Area of Bangladesh and Respec�ve Adap�ve Measures”. He was selected the best speaker in the conference.The main objec�ve of the conference was to provide a pla�orm to exchange views on how to mainstream the prac�ces of disaster management into development.
product valida�on and applica�on, precipita�on related natural hazards such as floods and landslides etc.
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IWM
SL Name of project Client
1 Mathema�cal Modelling Study Safe Drinking Water Sources Iden�fica�on in 148 Pourashavas.
2 Mathema�cal Modelling Study for Tarail Pachuria FCDI Project (Phase II).
3 Mathema�cal Modelling Study of Sureswar FCDI Project
4 Drainage and Irriga�on Improvement Study of Beel Gazna and Adjoining Areas of Pabna District.
5 Greater Mekong Sub-region Flood and Drought Risk Management and Mi�ga�on Project.
6 CEIP: Feasibility Study for the Coastal Embankment Improvement Project.
7 Halda Water Modelling Study for Assessment of Sustainability of Restora�on of Spawning Ground in the Halda River.
8 Mathema�cal Modelling Study for Integrated Water Management Project of Polder 34/2 in Bagherhat Dist.
9 Cyclone-Induced Storm Surge Modelling and Assessment of Storm Surge Height for the Construc�on of Cyclone Shelter in the Coastal Region of Bangladesh.
10 CDMP: Impact of Climate Change on salinity intrusion and zoning of salinity level for assessment of Community risk in the Coastal Area.
11 ADB Aided- Port and Logis�cs Efficiency Improvement (Mongla & Benapole).
12 Rehabilita�on of Bhu�ar beel and Barnal Salimpur Kolabashukhali FCD Project in Khulna District.
13 Joint Ac�on Research on Salt Water Intrusion in Groundwater in the Coastal Area.
14 Hyswawa: Strengthening BMDA’s Capacity on Water Resources Management.
15 Morphological Mathema�cal Modelling for Planning, Design, Monitoring and Quality Control of Dredging for Gorai River Restora�on Project, Phase II
16 Study of Impact of Dredging at 3.17km Upstream of Hardinge Bridge on the Ganges River
17 Monitoring of Hydraulic and Morphological Condi�ons for the Safety of the Jamuna Mul�purpose Bridge for the Year 2011.
18 Mathema�cal Modelling of the Ganges in connec�on with the Proposed Rooppur Power Plant
19 Hydro-morphological Study of the Korotoya River around Baradaha Bridge Loca�on in Gaibandha
DPHE
BWDB
BWDB
BWDB
Consultant
Consultant/BWDB
Fisheries Dte.
BWDB
IDB
CDMP
ADB
BWDB
DANIDA
LGED
BWDB
BWDB
BBA
Atomic Energy
RHD
List of Major Contractssigned during 2010
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SL Name of project Client
20 Mathema�cal Morphological Modelling for Kushiyara River near North Pad.
21 Mathema�cal Modelling Study for the Protec�on of the Padma Le� Bank around Sreenagar and Dohar Upazilla.
22 Hydrological and Morphological Study and Supervision of Construc�on Works for 11 Nos. Bridges at Different Upazillas of Barishal, Pirozpur, Bhola and Jhaloka� Districts Under GBDRCHBIDP.
23 Sewerage Master Plan of Dhaka City.
24 Water Supply, Drainage & Sanita�on in 148 Pourashava.
25 MIS for S.W. Area IWRM.
26 Na�onal MIS for Water Supply & Sanita�on Project.
27 Bathymetric Survey in connec�on with dredging of Gorai River.
28 Hydrographic and Topographic Survey of the Kushiara River near Bibiyana Gas field during monsoon 2010.
29 Pre-Interim-Post Survey for dredging at Lafarge Surma Cement Ltd. Je�y area at Cha�ak.
Chevron Bangladesh
BWDB
LGED
DWASADPHE
Consultant/BWDB
DPHE
BWDB
Consultant
Consultant
2010
Training for IWM Staff Development in 2010
2007 2008 2009 2010
Year-wise HRD programmes for staff development
No. of Training Par�cipants
2010
9
6
5
7
8
11
7
6
4
5
6
7
6
4
91
6%
11%
12%
12%
59%
PS SS AS JS JE
