Hattikuni Dam January-2020
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O&M Manual for Hattikuni Dam January-2020 Operation and Maintenance Operation and Maintenance Manual for Hattikuni Dam Water Resources Department State of Karnataka. Doc.No: O & M Manual_ KA06MH0093_KaWRD_ VERSION – 2 January 2020 Doc. No. CDSO_O&M_KA06MH0093_Hattikuni Dam_v2.0 Page i O&M Manual for Hattikuni Dam January-2020 Front Cover Photograph: Dam top view of Hattikuni Dam during rehabilitation works carried out under the Dam Rehabilitation & Improvement Project (DRIP). The Scope of Work includes Rehabilitation and improvements to providing barbed wire fencing to protected area, platform for V-notch Manhole and drystone revetment, kerb stone, protection wall to hillock adjoining to left bank of dam and asphalting to approach road to spillway and providing repairs spillway and improvements to barricades. Dam Safety Rehabilitation Directorate Central Dam Safety Organization Central Water Commission 3rd Floor, New Library Building (Near Sewa Bhawan) R. K. Puram, New Delhi – 110066. Email: [email protected] Doc. No. CDSO_O&M_KA06MH0093_Hattikuni Dam_v2.0 Page ii O&M Manual for Hattikuni Dam January-2020 Operation and Maintenance Manual for Hattikuni Dam Prepared by the Dam Safety Rehabilitation Directorate with Assistance from KARNATAKA NEERAVRI NIGAM LIMITED (A Government of Karnataka undertaking) State of Karnataka 3rd Floor, New Library Building R. K. Puram New Delhi – 110066 January 2020 New Delhi Doc. No. CDSO_O&M_KA06MH0093_Hattikuni Dam_v2.0 Page iii O&M Manual for Hattikuni Dam January-2020 Government of India Central Water Commission Central Dam Safety Organisation Following the intrinsic requirements in the Guidelines for Preparing Operation and Maintenance Manuals for Dams published in January 2018, this manual has been developed to clearly illustrate the complexity and importance of managing operations, inspections and maintenance of any large dam. This model manual has been developed under the Dam Rehabilitation and Im- provement Project (DRIP) in collaboration with representatives of the Hattikuni Dam Chief En- gineer, Karnataka Neeravari Nigama Limited, Karnataka. Disclaimer The content of this Operation and Maintenance Manual for Hattikuni Dam in no way restricts the dam owner in digressing from her/his responsibilities. The Central Dam Safety Organization or the Central Water Commission cannot be held responsible for the efficacy of this manual developed based solely on documents provided by the dam owner. The Dam Owner and her/his Operators must exercise appropriate discretion when implementing and use of the operation and maintenance manual for managing the workings of the dam and appurtenant structures. The manual serves as a model for the sole purpose of other organization for use in developing their own manual for managing the operation, inspection and maintenance required to be carried out to reduce risks and optimizing performance of their dams. For any information, please contact: The Director Dam Safety Rehabilitation Directorate Central Dam Safety Organisation Central Water Commission 3rd Floor, New Library Building (Near Sewa Bhawan) R. K. Puram, New Delhi – 110066. Email: [email protected] Doc. No. CDSO_O&M_KA06MH0093_Hattikuni Dam_v2.0 Page iv O&M Manual for Hattikuni Dam January-2020 Message India has more than 5200 large dams. Their health and safety are of paramount importance for sustainable use of the valuable assets, besides providing protection to the people and property in the downstream areas. The Ministry of Water Resources, River Development & Ganga Rejuve- nation through the Central Water Commission (CWC), with financial assistance from the World Bank, started the Dam Rehabilitation and Improvement Project (DRIP) to rehabilitate 198 large dam projects in seven states. For managing a dam in a sustainable and scientific manner, it is very crucial for each dam owner to have dam specific Operation and Maintenance Manual that lays down procedures for the daily upkeep of the dam. An Operation and Maintenance Manual for a dam is essential for ensuring its safe functioning and for deriving continued benefits. This Operation and Maintenance Manual for Hattikuni Dam has been prepared following the Guideline for Preparation Operation and Maintenance Manuals published in January 2018 under DRIP and covers requirements for project Operation, Inspection, Maintenance, Instrumentation and Monitoring the health of Hattikuni Dam both during monsoon and non-monsoon periods. I recommend the dam officials to use this manual for the efficient and safe Operation and Maintenance of the Hattikuni Dam on regular basis. I also compliment all the experts who have contributed to the development of this manual and congratulate the Ministry of Water Resources, River Development & Ganga Rejuvenation, CWC for the initiation of such important policy protocol to address dam safety management in India. Shri. Rakesh Singh, IAS Principal Secretary Water Resources Department, Karnataka Doc. No. CDSO_O&M_KA06MH0093_Hattikuni Dam_v2.0 Page v O&M Manual for Hattikuni Dam January-2020 Team Involved in Preparing this O & M Manual Jagannath Halinge Chief Engineer, KNNL, IPZ, Kalaburagi Jagannath Halinge Superintending Engineer, KNNL, IPC Circle, Kalaburagi Sangamnath Executive Engineer, KNNL, Bennethora Project, Divn.- 4, Hebbal, Tq: Chittapur, Dist: Kalaburagi Kailash Assistant Executive Engineer, KNNL, Chandrampalli Project, Sub-divn., Chandapur Sunil Rathod Assistant Engineer, KNNL, Chandrampalli Project, Sub-divn., Chandapur Siddaroodha Assistant Engineer, KNNL, Chandrampalli Project, Sub-divn., Chandapur Doc. No. CDSO_O&M_KA06MH0093_Hattikuni Dam_v2.0 Page vi O&M Manual for Hattikuni Dam January-2020 Table of Contents Message ........................................................................................................................... v Forward…………………………………………………………………………………………………………………………….vi CHAPTER 1. GENERAL INFORMATION .............................................................................................1 1.1 Introduction ...............................................................................................................................1 1.2 Purpose, Location & Description of Hattikuni Dam ...............................................................1 1.3 Background Details of the Project ........................................................................................... 2 1.3.1 Dam site Location ....................................................................................................... 2 1.3.2 Hattikuni Reservoir Planning ..................................................................................... 2 1.3.3 Main Design Features and Components of Hattikuni Dam .................................... 6 1.4 Assignment of Responsibility .................................................................................................. 8 1.4.1 Overall Responsibilities for Hattikuni Dam ............................................................... 9 1.4.2 Roles and Responsibilities of the AEE and AE during Monsoon ........................... 10 1.4.3 Roles and Responsibilities of the SE and EE during Monsoon .............................. 11 1.4.4 Roles and Responsibilities of the Chief Engineer during Monsoon ....................... 12 1.5 Collection & Reporting of Dam and Reservoir Data .............................................................. 12 1.6 Public and Project Staff - Health and Safety ........................................................................... 14 1.7 Restricted Areas ...................................................................................................................... 14 1.7.1 Details of the Security arrangements at Hattikuni Dam Site ................................... 14 1.8 Staff Position, Communication & Warning System ............................................................... 16 1.8.1 Schedule of General Duties for Project Engineers ................................................... 18 1.8.2 Hydro-Mechanical Inspections / Checks ................................................................ 20 1.9 Distribution of Operation & Maintenance Manuals .............................................................. 21 1.10 Supporting Documents & Reference Material ..................................................................... 22 CHAPTER 2. PROJECT OPERATION ............................................................................................... 23 2.1 Basic Data .............................................................................................................................. 23 2.1.1 Area Capacity curves ................................................................................................. 23 2.1.2 Design Flood and Features Related to Safety .......................................................... 26 2.2 Flood Management at Hattikuni Reservoir .......................................................................... 28 2.2.1 Gate Operations ........................................................................................................ 28 2.2.2 Rule Curve ................................................................................................................ 30 2.2.3 Recommended Gate Operation Procedures for Normal Flow Conditions ............. 32 2.2.4 Inflow Forecasting .................................................................................................... 33 2.2.5 Flood warning system in catchment area................................................................