The Status Report
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WATER RESOURCES DEPARTMENT GOVERNMENT OF MAHARASHTRA THE STATUS REPORT CAPACITY ASSESSMENT OF RESERVOIRS IN MAHARASHTRA [ 1974 - 2020 ] JAYAKWADI DAM MAHARASHTRA ENGINEERING RESEARCH INSTITUTE ( M. E. R. I. ) RESOURCES ENGINEERING CENTER NASHIK - 04 UJJANI DAM YEAR 2020 RESOURCES ENGINEERING CENTER, MERI, NASHIK - 04 A Publication of MERI, Nashik (MS) A Publication of MERI, Nashik (MS) THE STATUS REPORT CAPACITY ASSESSMENT OF RESERVOIRS IN MAHARASHTRA SURVEY FROM 1974 TO 2020 MAHARASHTRA ENGINEERING RESEARCH INSTITUTE ( M. E. R. I. ) , NASHIK – 04 RESOURCES ENGINEERING CENTER NASHIK - 04 Resources Engineering Center, MERI , Nashik I FOREWARD The sedimentation is an effect of erosion in the catchment area of the reservoir and hence, lesser the rate of erosion, smaller is the sediment load entering into the reservoir. Deposition of sedimentation in reservoir gradually reduces the capacity of reservoir. Dead storage capacity as well as live storage capacity gets affected due to sedimentation. Information about reduction in the storage capacity is necessary for the planning and operational purposes and same can be obtained through sediment assessment surveys done at regular interval. Various factors govern the process of erosion, transport and deposition of sediment in the reservoir. Type of soil, drainage density, vegetation, rainfall intensity and duration, shape of catchment and land use / land cover affect erosion. Sediment transportation depends upon slope of the catchment, channel geometry and nature of river bank and bed. Deposition is a function of bed slope of the reservoir, length of reservoir, flow patterns, inflow-outflow rates, grain size distribution, mode of reservoir operation etc. Established in 1959, The Maharashtra Engineering Research Institute (MERI), Nashik, is a premier engineering research institute working in the field of applied research in civil engineering. Since 1974, MERI has carried out sedimentation assessment studies of various reservoirs in Maharashtra by Hydrographic surveys, DGPS based Bathymetric Surveys, Satellite based Remote Sensing Technique and Ground Based Differential Global Positioning System (DGPS) technique. Resources Engineering Center (REC) of Maharashtra Engineering Research Institute (MERI), Nashik is entrusted with the work of research, investigation and consultancy in capacity assessment surveys. REC has carried out these studies in respect of 311 reservoirs in Maharashtra and brought out “The Status Report on Capacity Assessment of Reservoirs in Maharashtra (1974-2020)”. This report deals with the various techniques of capacity assessment in very elaborative manner. This report also includes the analysis of hydraulic data like storages in reservoirs, catchment area, silt rate, loss in storage. This aspect is highly relevant at present juncture when it is being insisted upon that the whole cost of catchment area treatment works should be borne by the project authorities. The dam is not the cause of erosion in the catchment area. I take profound pleasure in presenting first edition of the state of art ‘The Status Report on Capacity Assessment of Reservoirs in Maharashtra (1974-2020)’. I would like to complement Shri. S. A. Tatu, Superintending Engineer (MERI) and Shri. Makarand Kulkarni, Executive Engineer (REC) and the team for bringing out this innovative and informative status report. I sincerely hope that this will serve as a useful source of information to engineers, planners, researchers and general public use. (A. P. Kohirkar) Director General (Design, Training, Hydrology, Research, Safety) Maharashtra Engineering Research Institute Nashik Resources Engineering Center, MERI , Nashik II PREFACE Optimal management of water resources is the prime necessity of time in the wake of development and growing need of the population. Realizing the need of effective and economical management of our water resources, a useful database has to be developed and updated at regular intervals to monitor the performance of water resources. MERI is an authority to conduct Capacity Assessment surveys since its establishment. It is treasurer of hydraulic data regarding capacities of reservoirs. ‘The Status Report on Capacity Assessment of Reservoirs in Maharashtra (1974-2020)’ prepared by Resources Engineering Center (REC) under MERI is a welcome initiative. This report elaborates necessity, mechanism and objective of capacity assessment of reservoirs .It also explains traditional and modern techniques for capacity assessment in simple manner. The informations provided by concerned dam/field authorities has been used as a base data in all capacity assessment surveys. The statistics like number of surveys in a year, techniques adopted is given in various tables in the report. Since 1974 up to March 2020, MERI has carried out 311 no. of surveys for reservoirs in Maharashtra. MERI also executes the consultancy services to other agencies like Central Water Commission, Other state WRDs, MahaGenco, TATA and Lavasa. MERI has carried out 76 such surveys in past 20 years. I am thankful to Hon. A. P. Kohirkar, Director General, MERI for his valuable guidelines regarding report. I compliment Mr. Makarand Kulkarni, EE (REC) for his initiative and innovative concept. I also appreciate the engineers of REC who collected and compiled the data in proper manner. This Status Report is an effort to provide a useful guideline to policy makers, field personnel’s, engineers, research scholars etc. Any Suggestions for further improvement, both in the contents and coverage, will be highly appreciated. ( S. A. TATU ) Superintending Engineer Maharashtra Engineering Research Institute Nashik Resources Engineering Center, MERI , Nashik III Acknowledgement The state of Art ‘The Status report on Capacity Assessment of reservoirs in Maharashtra (1974-2020)’ is a initiative taken up by Resources Engineering Centre, MERI, Nasik is outcome of its long lasting experience of more than 50 years of expertness in Capacity Assessment of reservoir works. REC is one and only state repository of data regarding the current capacities of the reservoirs under MWRD. This status report is an attempt to share the important data of the reservoirs in Maharashtra to the top level officials, engineers, policymakers, hydrologist and planners as capacity surveys of various reservoirs at regular intervals are considered necessary to evaluate the balance life as well as for the optimal reservoir operation. REC has a vision to publish the status report once in a ten years from now onwards which will give brief idea of the techniques and statistics of current capacities of the reservoirs in Maharashtra under WRD. I express my sincere thanks to Hon. Shri A. P. Kohirkar, Director General, MERI, Nashik for his valuable and thoughtful suggestions and guidelines. I am also thankful to Hon. Shri. S. A. Tatu, Superintending Engineer, MERI for his experienced ideas and guidelines. I am also thankful to staff of my REC division especially Shri. S. A Gaikwad, SDE and Ms. S. G. Kuwar, AE II who took tremendous efforts to collect, compile and validate the data. REC also express thanks to all the engineers who worked in MERI regarding the capacity assessment surveys, without their efforts it was not possible to complete the report. This publication is an effort to provide a useful guide to administrators and planners. This is the initiative to emphasize the importance the water resources in planning and managing the important natural resource. The data contained in this publication is no way intended for any purpose. The information given in status report is not binding on any party and does not confer rights or restrictions to any party. REC (MERI) would be ever willing to rectify erroneous information if any, brought to its notice. ( Makarand Kulkarni ) Executive Engineer Resources Engineering Center, Maharashtra Engineering Research Institute Nashik Resources Engineering Center, MERI , Nashik IV ENGINEERS ASSSOCIATED WITH THE PREPARATION OF STATUS REPORT SHRI. A. P. KOHIRKAR DIRECTOR GENERAL (DESIGN, TRAINING, HYDROLOGY, RESEARCH, SAFETY) MAHARASHTRA ENGINEERING RESEARCH INSTITUTE M.E.R.I., NASHIK SHRI. S. A. TATU SUPERINTENDING ENGINEER MAHARASHTRA ENGINEERING RESEARCH INSTITUTE M.E.R.I., NASHIK SHRI. MAKARAND KULKARNI EXECUTIVE ENGINEER RESOURCES ENGINEERING CENTER MAHARASHTRA ENGINEERING RESEARCH INSTITUTE M.E.R.I., NASHIK SHRI. SUNIL GAIKWAD SUB DIVISIONAL ENGINEER RESOURCES ENGINEERING CENTER MAHARASHTRA ENGINEERING RESEARCH INSTITUTE MERI, NASHIK SHRI. SANTOSH WAGH SUB DIVISIONAL ENGINEER RESOURCES ENGINEERING CENTER MERI, NASHIK MS. SHRADDHA KUWAR ASSISTANT ENGINEER GR – II RESOURCES ENGINEERING CENTER MERI, NASHIK MS. PRAJAKTA KEDAR ASSISTANT ENGINEER GR – II RESOURCES ENGINEERING CENTER MERI, NASHIK MS. ANUPRIYA JADHAV ASSISTANT ENGINEER GR – II RESOURCES ENGINEERING CENTER MERI, NASHIK SHRI. DINESH NIKAM MRS. ANITA MORKAR SECTIONAL ENGINEER JUNIOR SCIENTIFIC ASSISTANT RESOURCES ENGINEERING RESOURCES ENGINEERING CENTER, MERI, NASHIK CENTER, MERI, NASHIK Resources Engineering Center, MERI , Nashik V DISCLAIMER The sole purpose of the status report is to provide basic information about siltation data of dam to any interested party. It is in no way intended for the purpose other than mentioned above. The information given in status report is not binding on any party and does not confer rights or restrictions to any party. MERI would be ever willing to rectify erroneous information if any, brought to its notice. CONTACT DETAILS Superintending Engineer