Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
Emergency Action Plan (Tier- I)
Kundala Dam, Maduppetty Dam& R A Head Works
Kerala State Electricity Board Ltd.
DOC No. KSEBL_EAP_07_KUNDALA_MADUPPETTY & RA Head Works_R2
March, 2020
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM & RA HEAD WORKS March 2020
KUNDALA (KL29HH0001)DAM, MADUPPETTY (KL29HH0005) DAM&
RA HEAD WORKS
DISCLAIMER
This is a Tier I EAP document prepared based on Dam Break Analysis carried out using the digital elevation model (DEM) derived from the Japan Aerospace Exploration Agency (JAXA) global digital surface model (DSM) dataset with a horizontal resolution of approximately 30meters (1 arc-sec). Every effort has been taken to estimate the severity of flooding and inundation areas likely to be affected by failure of Kundala Dam/Maduppetty Dam/R A Head Works. These estimates are based on available primary and secondary data. Every effort has been made to foresee varied emergency possibilities and develop appropriate notification procedures for timely rescue and relief operations. However, implementation of the Emergency Action Plan (EAP) involves many agencies, who are required to work in a coordinated manner to reduce the consequences of the emergency triggered by the dam site condition. Effectiveness of the rescue and relief operations depend on many factors including the adequacy and accuracy of the estimation of the severity of flooding, coordinated efforts of all the agencies involved in rescue and relief efforts and availability of facilities like power, telephones, road communications, etc. EAP Developer may therefore, not be held responsible for the efficacy of the EAP.
For any information, please contact:
Supriya. S Chief Engineer (Civil – Dam Safety & DRIP) Kerala State Electricity Board Ltd. Dam Safety Organization, Pallom Kottayam Ph. +91 9496018719
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
PREFACE
Kundala Dam, Maduppetty Dam & R A Head Works are constructed in Mudirappuzha stream, a tributary of River Periyar, as part of Pallivasal Hydro Electric Project. These are cascading structures with Kundala at the upstream and R A Head Works at downstream. Kundala is comparatively a small reservoir. The water stored in the reservoir is released to the downstream Maduppetty reservoir through the river when water level in Maduppetty reservoirs lowers. The water stored in the Maduppetty reservoir plus the water released from Kundala is further released to downstream through a Dam Toe Power Station. R A Head Works, a gated diversion structure, constructed downstream of Maduppetty helps to divert the water released from the upstream reservoir as well as the inflow from own catchment to Pallivasal Power Station. These structures are operated and maintained by the same officials. The inundation area consequent to breach/large control releases of these dams falls in same Panchayats and hence the authorities responsible for evacuation in case of an emergency are the same. Hence Tier I EAP of Kundala Dam, Maduppetty Dam and R A Head Works is prepared as a single document.
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
TABLE OF CONTENT
1.APPROVAL AND IMPLEMENTATION ...... 1 2.EAP DISTRIBUTION LIST ...... 3 3.LOG SHEET OF CHANGES ...... 5 4.PURPOSE ...... 6 5.DAM DESCRIPTION ...... 7
5.1. GENERAL ...... 7 5.1.1 Kundala Dam ...... 7 5.1.1.1 Reservoir Operation – Kundala Dam ...... 7 5.1.2 Maduppetty Dam ...... 7 5.1.2.1 Reservoir Operation – Maduppetty Dam ...... 8 5.1.3 R A Head Works ...... 8 5.1.3.1 Reservoir Operation - R A Head Works ...... 8 6.RESPONSIBILITIES ...... 9
6.1 DAM OWNER’S RESPONSIBILITIES ...... 9 6.2 DAM SAFETY ORGANIZATION’S RESPONSIBILITIES ...... 13 6.3 RESPONSIBILITIES FOR NOTIFICATION ...... 14 6.4 RESPONSIBILITIES FOR EVACUATION ...... 15 6.5 RESPONSIBILITIES FOR TERMINATION AND FOLLOW-UP ...... 17 7. COMMUNICATIONS NETWORKS ...... 20 8.EMERGENCY DETECTION, EVALUATION, AND CLASSIFICATION ...... 21
8.1. EMERGENCY DETECTION ...... 21 8.1.1. Situations ...... 21 8.1.2. Signs of Failure ...... 21
8.2. EMERGENCY EVALUATION AND CLASSIFICATION ...... 22 8.2.1 Internal Alert Condition ...... 22 8.2.2 External Alert Condition...... 22 8.2.3 External Alert Conditions ...... 23
8.3. PREVIOUSLY KNOWN PROBLEMS ...... 23 8.3.1 Kundala Dam ...... 23 8.3.2 Maduppetty Dam ...... 24 8.3.3 R A Head Works ...... 24 9.PREPAREDNESS ...... 25
9.1 SURVEILLANCE ...... 25 9.2. RESPONSE ON FORECAST OF EXCESSIVE INFLOW...... 25 9.3. RESPONSE DURING WEEKENDS AND HOLIDAYS ...... 25 9.4. RESPONSE DURING PERIODS OF DARKNESS AND ADVERSE WEATHER ...... 25 9.5. ACCESS TO THE SITE ...... 25 9.6. REMEDIAL ACTIONS ...... 26 10.SUPPLIES AND RESOURCES ...... 28
10.1. CONTRACTS ...... 28 10.2. EQUIPMENT AND SUPPLIES ...... 28 10.3. REPORTS ...... 28 11.EMERGENCY OPERATIONS CENTRE ...... 29
11.1. ACTIVITY LOG ...... 29 11.2. COSTS OF THE EMERGENCY OPERATIONS CENTRE ...... 29
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
12.INUNDATION AREA ...... 30
12.1 INUNDATION MAPS...... 30 12.2 INUNDATED AREAS ...... 31 12.2.1 Kundala Dam ...... 31 12.2.2 Maduppetty Dam ...... 33 12.2.3 R A Head Works ...... 36
12.3. LOCAL EVACUATION PLAN ...... 37 13.IMPLEMENTATION ...... 39
13.1. DEVELOPMENT ...... 39 13.2. UPDATING ...... 39 13.3. TESTING ...... 39 13.4. TRAINING ...... 40
ANNEXURES
ANNEXURE 1A – KUNDALA DAM (DAM DESCRIPTION) ...... 41
ANNEXURE 1B - MADUPPETTY DAM (DAM DESCRIPTION) ...... 43
ANNEXURE 1C - R A HEAD WORKS (DAM DESCRIPTION) ...... 45
ANNEXURE 2 (VICINITY MAP) ...... 47
ANNEXURE 3A - KUNDALA DAM (INUNDATION MAP – SEPARATE BOOKLET) ...... 49
ANNEXURE 3B - MADUPPETTY DAM (INUNDATION MAP – SEPARATE BOOKLET) ...... 50
ANNEXURE 3C – R A HEAD WORKS (INUNDATION MAP – SEPARATE BOOKLET) ...... 51
ANNEXURE 4 (ACTION DATA SHEET) ...... 52
ANNEXURE 5 (WATCH NOTIFICATION FLOW CHART) ...... 84
ANNEXURE 6a- KUNDALA DAM (FAILURE NOTIFICATION FLOW CHART ) ...... 86
ANNEXURE 6b1 – MADUPPETTY DAM (FAILURE NOTIFICATION FLOW CHART – IDUKKI DISTRICT) ...... 88
ANNEXURE 6b2 – MADUPPETTY DAM (FAILURE NOTIFICATION FLOW CHART – ERNAKULAM DISTRICT) ...... 90
ANNEXURE 6c – R A HEAD WORKS (FAILURE NOTIFICATION FLOW CHART ) ...... 92
ANNEXURE 7 (SAMPLE PUBLIC ANNOUNCEMENTS) ...... 94
ANNEXURE 8 (SUPPLIES AND RESOURCES) ...... 96
ANNEXURE 9a1 –KUNDALA DAM (INUNDATION CUM EVACUATION MAP) ...... 101
ANNEXURE 9a2 –MADUPPETTY DAM (INUNDATION CUM EVACUATION MAP) ...... 108
ANNEXURE 9a3 – R A HEAD WORKS (INUNDATION CUM EVACUATION MAP) ...... 115
ANNEXURE 9b1 – KUNDALA DAM (FLOOD HAZARD REFERENCE VALUES AND LOCAL EVACUATION PLAN) ...... 119
ANNEXURE 9b2 – MADUPPETTY DAM (FLOOD HAZARD REFERENCE VALUES AND LOCAL EVACUATION PLAN) ...... 121
ANNEXURE 9b3 – R A HEAD WORKS (FLOOD HAZARD REFERENCE VALUES AND LOCAL EVACUATION PLAN) ...... 124
ANNEXURE 10 (ANNUAL EAP EVALUATION CHECKLIST) ...... 126
ANNEXURE 11 (PLAN REVIEW AND UPDATE) ...... 128
ANNEXURE 12 (TRAINING RECORD) ...... 130
ANNEXURE 13 (STAKEHOLDERS’ MEETING) ...... 132
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
1. APPROVAL AND IMPLEMENTATION
#This Emergency Action Plan has been prepared by Kerala State Electricity Board Limited (KSEBL) in collaboration with Central Project Management Unit (CPMU), Central Water Commission (CWC), Government of India. This document is hereby approved and is effective immediately and supersedes all previous editions.
N S Pillai, Chairman & Managing Director, KSEBL Date
I have received a copy of this Emergency Action Plan and concur with the notification procedures.
Supriya S, Chief Engineer (Civil – Dam safety & DRIP) Date
Preetha R, Deputy Chief Engineer Date Research & Dam Safety Organisation, Pallom
District Disaster Management Authority, Idukki Date
District Disaster Management Authority, Ernakulam Date
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
State Disaster Management Authority Date
State Dam Safety Organization Date
District Police Chief, Idukki Date
District Police Chief, Ernakulam Date
# This document is prepared based on the inundation maps provided by CPMU. The document is reviewed by CPMU and accorded concurrence.
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
2. EAP DISTRIBUTION LIST
A copy of the EAP has been provided to the following people:
Authority Name, Title, Phone Acceptance Signature Dam Operator / Site Officials Prabeesh Bose Assistant Engineer Dam Safety Section, Munnar Mob: 9496011964/9400348249 George Joy Assistant Executive Engineer, Kallarkutty Mob: 9447573449 Emergency Planning Manager Thomas Alexander Executive Engineer Dam Safety Division, Pambla Mob : 944608421 KSEBL Preetha R, Deputy Chief Engineer R&DSO, Pallom Mob : 9446008492 Supriya S, Chief Engineer (Civil – Dam Safety & DRIP) Mob : 9496018719 State Dam Safety Organization Joshy K A Chief Engineer 9447780159
Central Dam Safety Gulsan Raj Organization Chief Engineer, CWC, New Delhi Ph : 9999277474 Ph : 011 - 26106848 Pramod Narayan Director, Dam Safety & Rehabilitation,CWC Ph : 9958975921 Ph: 011 - 29583480 National Disaster Brig. Ajay Gangwar Management Authority Advisor (Ops.) Ph : 011 - 26701886 Dr. Pavan Kumar Singh Joint Advisor (Ops) Ph: 011-26701788
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
District Disaster Management H Dineshan IAS
Authority, Idukki District Collector Idukki Mob : 9447032252 Police Department, Idukki Narayanan T IPS
Superintendent of Police, Idukki Mob : 9497996981 District Disaster Management Suhas S IAS
Authority, Ernakulam District Collector Ph: 0484 2423001 Police Department, Ernakulam K Karthick IPS
Superintendent of Police Ernakulam Ph: 0484 2353516 Kerala Sate Disaster Sekhar L Kuriakose Management Authority Vikas Bhavan, Thiruvananthapuram Phone +91 471 2331345
Tehsildar, Udumbanchola Ph: 04868 232050/ Taluk 9447023809
Tehsildar, Devikulam Taluk Ph: 04865 264231/ 9447026414
Tehsildar, Thodupuzha Taluk Ph: 04862 222503/ 8547612801
Tehsildar, Kothamangalam Ph: 0485 2822298 Taluk
Tehsildar, Kunnathunad Taluk Ph: 0484 2522224
Dam Operator / Site Officials T.K Bose downstream dam Assistant Engineer, Dam Safety Section, Pambla Mob : 9847415401 Sunitha K R Assistant Executive Engineer, Pambla Mob: 9446206589
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
3. LOG SHEET OF CHANGES
The following changes have been made to the EAP and revisions have been provided to the people shown on the EAP Distribution List.
Date Change Made Signature
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
4. PURPOSE
The purpose of this Emergency Action Plan (EAP) is to identify emergency situations that could threaten Kundala Dam/Maduppetty Dam/RA Head Works of Pallivasal Hydro Electric Project and to plan for an expedited, effective response to prevent failure of the dam and warn downstream residents of impending danger. This plan defines the notification procedures to be followed in the event of a potentially hazardous situation. The procedures are intended to protect lives and prevent property damage from an excessive release of water from the dam spillways or an uncontrolled outflow of water from the breached portion of dam.
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
5. DAM DESCRIPTION 5.1. General There are two dams and one diversion structure constructed as part of Pallivasal Hydro Electric Project sequentially across Mudirappuzha stream. They are Kundala, Maduppetty & R A Head Works respectively. A general lay out of the dams is shown below;
5.1.1 Kundala Dam Kundala Dam is constructed in the upstream reaches of Mudirappuzha sub basin, downstream of the confluence of Chittuvarai, Ellappatti and Chunduvarai streams, in Periyar Basin in Idukki District, Kerala State. The upstream most dam in Mudirappuzha sub basin is Kundala. It is a masonry dam, constructed during 1947. The location of dam is 770 11’ 55” E/100 08’ 37” N. Maduppetty is the immediate downstream dam in the same stream. 5.1.1.1 Reservoir Operation – Kundala Dam The Gross Storage of Kundala Dam is 7.78 Mm3 and live storage 7.65 Mm3. FRL of the reservoir is 1758.69 m and the MWL is 1759.30 m. Top level of dam is 1759.92 m. There are five vertical gates (falling type), each of size 5.18 m x 2.74 m. Crest level of spillway is 1756.86 m. One lower level outlet of 1.8 m dia. is also provided in the dam. Spillway capacity is 184 m3/s. the reservoir will be at FRL near the end of monsoon season. The water stored in the reservoir is released to Maduppetty Reservoir, located about 4 km downstream, through the river course generally from April to May. The reservoir will be empty by the end of May. 5.1.2 Maduppetty Dam Maduppetty dam is constructed about 10 km downstream of Kundala Dam. It is a concrete gravity dam. This reservoir stores the water from the catchment downstream of Kundala dam. It also routes the releases from Kundala dam to R A Head works from where it is diverted to Pallivasal Power Station. This dam was constructed in 1956 and is intended to store water for power generation.
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
5.1.2.1 Reservoir Operation – Maduppetty Dam The Gross Storage of Maduppetty Dam is 55.23 Mm3 and live storage 54.77 Mm3. FRL & MWL of the reservoir is 1599.59 m. Top level of dam is 1600.20 m. There are three nos. of radial gates each of size 6.70 m x 4.95 m. Crest level of spillway is 1594.71 m. One lower level outlet of 1.2 m dia. is also provided at elevation 1565.15 m Spillway capacity is 453 m3/s. The water stored in the reservoir is released through a Dam Toe Power Station, which in turn used for generating power from Pallivasal Hydro Electricity Project. 5.1.3 R A Head Works This is a barrage like structure with gate arrangements which diverts water to the tunnel of Pallivasal Hydro Electric Project. The water is impounded by gates. The sill level of the gate is almost at the bed level of the stream. Release from Maduppetty reservoir as well as inflow from own catchment reaches R A Head Works. This structure is constructed during 1944. 5.1.3.1 Reservoir Operation - R A Head Works The pondage of the diversion structure is 0.22 Mm3. The Full Reservoir Level is 1450.92 m. The crest level of gate is 1445.00 m. There are three vertical lift gates for this barrage each of size 11.6 m X 6.7 m. The rate of diversion to the power station is about 8 m3/s. Description of dam, its spillways, and other features are outlined in the Dam Description in Annexure - 1a, 1b & 1c. A vicinity map showing the location of dams is presented in Annexure - 2. Inundation maps showing the areas subject to flooding as a result of a dam failure of Kundala Dam, Maduppetty Dam & R A Head Works, as shown in Annexure - 3a, 3b & 3c respectively, is provided as separate drawing volume in A3 format. Following inputs/information is used to support the reservoir operation. a) Satellite images of cloud formation. b) India Meteorological Department (IMD) forecast. c) Advance information on release from upstream reservoir. c) Daily rainfall detail of the nearby rain gauge stations.
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
6. RESPONSIBILITIES 6.1 Dam Owner’s Responsibilities Dam owner’s responsibilities before and during an Emergency event is tabulated below;
Table 6.1.1 Dam owner’s Responsibilities.
Sl. Dam Emergency Personnel Responsibility No.
1 Emergency Planning Manager Preparedness Responsibilities - Coordinate routine inspections and Dams’ Executive Engineer operations. Dam Safety Division - Ensure effective transmission of hydro- Pambla metrological and stream flow data through different means. - Ensure proper accessibility to all vulnerable
points for constant monitoring during emergency situations. - Identify primary and secondary communication systems, both internal (between persons at the dam) and external (between dam personnel and outside entities). - Provide security measures at the dam (CCTV surveillance, security guards, fencing). - Ensure the availability of adequate staff at dam site during holidays, nights and round the clock in weekdays. - Ensure that the EAP is functional and staffs are familiar with their responsibilities. - Ensure that a signboard is installed and clearly visual in different locations at dam site and operation room, with the most common evidence of distress and corresponding levels of alert and remedial actions. - Ensure all the equipment/means at dam site to response to an emergency are easily accessible and well maintained (generators, vehicles, lanterns, radios, heavy equipment, etc.)
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
- Ensure the installation and proper maintenance of a warning system (sirens, horns) in the critical areas within the floodplain (less than 2 hours of wave arrival time) - Ensure the current approved version of the EAP is available to all relevant stakeholders (those who have a functional role in the emergency response) - Ensure all necessary means to manage the emergency response are available and operative in the Emergency Operation Center. - Participate in exercises for test/improvement of this EAP.
Emergency Responsibilities - Ensure a continuous and reliable communication with dam site officers. - Receive and assess any distress condition as notified by site engineers, observer or regular inspection. - Classify the incident/distress condition reported by the observer into the different Emergency Levels (Blue, Orange, Red) based on Annexure 4 (Emergency Level Determination/Action Sheets) and Annexure 3 (Inundation Maps) - Initiate/implement the Emergency Action Plan and Emergency Operation center if it is deemed necessary. - Identify the area that would be potentially impacted by the emergency events - Provide updates of the situation to the District(s) Disaster Management Authority to assist them in making timely and accurate decisions regarding warning and evacuations. - Propagate the emergency information to other relevant stakeholders - Support the communication needs of local emergency authority
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
2 Dam Site Engineers Preparedness Responsibilities - Monitor and surveillance of dam and Asst. Executive Engineer appurtenant structures looking for Dam Safety Sub Division evidence of distress mentioned in Kallarkutty Annexure 4. - Conduct Pro and Pod monsoon Inspections Assistant Engineer under the direction of the emergency Dam Safety Section Planning Manager Munnar - Inform the Emergency Planning Manager about any irregular/unusual condition at dam site and keep him/her posted about any progression/change - Operate dam’s gates/under sluices, under the express direction of Chief Engineer/Deputy Chief Engineer/Executive Engineer - Conduct routine dam maintenance - Collect instrumentation measurements - Ensure effective working conditions of the warning system (Sirens) - Participate in exercises for test/improvement of this EAP
Emergency Responsibilities - Monitor the emergency event at dam site and keep posted the Emergency Planning Manager about any change in the development - Contact the suppliers/contractors - Supervise the work of the labor contractors and machineries engaged in the site for rehabilitation/remedial works
- Conduct the remedial actions as per Action
Data Sheets (Annexure 4) 3 Deputy Chief Engineer Preparedness Responsibilities: R&DSO and DRIP - Ensure an annual review of the EAP. Pallom - Coordinate the annual / regular testing events of the EAP, such as tabletop exercises, mock drills, stake holder’s consultation. - Coordinate training events in problem detection, evaluation and appropriate corrective measures
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
- Supervise the functioning of control room and ensure to be well equipped with all type of information to facilitate the rescue and relief operations - Ensure proper access to site at the earliest possible. - Ensure that all related machinery/equipment are in running conditions and can be deployed as per requirement at emergency site.
During Emergency Responsibilities: - Provide decision support and technical support to Emergency Planning Manager as appropriate. - Have a constant liaison with Indian Meteorological Department (IMD) during emergency periods related with flood events. - Advise the Emergency Planning Manager of the emergency level determination, if time permits. - Disseminate information and make contact to utilize media as appropriate at the time of emergency on behalf of Chief Engineer, Dam Safety & Drip, Vydyuthi Bhavanam, KSEB Ltd., Trivandrum. 4 Chief Engineer (Civil – Dam Preparedness Responsibilities: Safety & DRIP) - Assist the Dam Owner’s officers in Dam Safety Organization preparation of Action Data Sheets Pallom, Kottayam (Annexure 4) - Recommend specific actions in order to improve the readiness of emergency actions - Support and Monitor the remedial construction activities such as earth moving, especial investigations, etc. - Decide depending upon the quantum of repair/reconstruction work, whether the work is to be got executed through large construction firms or purely through the department or small contractors. - Undertake an engineering assessment of
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
the safety hazard at the dam in collaboration with the Kerala Dam Safety Authority (DSO) Emergency Responsibilities:
- Advice the dam’s Emergency Planning Manager/Deputy Chief Engineer with the emergency level determination, if time permits. - Advice the dam’s Emergency Planning Manager/ Deputy Chief Engineer with remedial actions to take if Blue/ Orange events occurs, and if time permits. - Direct specific and appropriate procedures to open/close the spillway’s gates during the reservoir operation. - Play the role of “Public Affair’s Officer” in case external/public notifications should be released. - Keep close watch on the different activities being carried out by different agencies at the time of emergency.
6.2 Dam Safety Organization’s Responsibilities
The following are the basic emergency planning &response roles and responsibilities for the Dam Safety Organization (State and National level); • undertaking an engineering assessment of the safety hazard at the dam. • advise the Dam Owner/Emergency Planning Manager of remedial actions to be taken if an event occur. • advise the Dam Owner/Emergency Planning Manager of the emergency level determination. • responsible for reviewing and accepting the Emergency Action Plan, before its final publication. support for the preparation of asset management plans, emergency preparedness plans, emergency warning systems, flood plain mapping, preparation of flood inundation maps focus on legal, regulatory and technical frameworks for dam safety assurance participate/conduct a stake holder’s meeting before finalization of the Emergency Action Plan
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
6.3 Responsibilities for Notification After an event level has been determined appropriate notifications should be made in accordance with the corresponding notification Flow Chart provided in this EAP (Annexure 5, 6a (Kundala) & 6b (Maduppetty) & 6c (R A Head Works). These Notification Flowcharts list the names and contact information and identifies who is to be notified of a dam safety incident, by whom, and in what order. Alternate contacts and their confirmed telephone number is also listed, in case primary contact is unavailable. Each official listed in the notification flowcharts should be familiar with it and immediately notify the Emergency Planning Manager in case of cessation of his/her functions within the organization. Responsibilities of officials for notification are tabulated as Table 6.3.1.
Table 6.3.1 Responsibilities for Notification Designation of Officials Responsibilities (During Preparedness and Emergency Events)
Executive Engineer - Notify the District Disaster Management authorities Dam Safety Division (District Collector) in case of Orange/Red alert Pambla - Notify the District Authorities about any emergency (Emergency Planning response actions at dam site and their impacts in the Manager) downstream area (e.g. large releases) - Assist the District Collectors/relief Authorities involved in the emergency response actions with information about condition at dam site - Where the residences located immediately downstream of a dam that would be inundated within minutes of a dam failure, wherein the available warning time is very limited, in that cases, Emergency Planning Manager will arrange to notify the residences directly without waiting for the local administration to act upon before an emergency situation develops.
Dam Site Engineers - Keep inform the Emergency Planning Manager about (Asst. Executive the progress of the situation at dam site Engineer, Assistant Engineers)
Deputy Chief Engineer, - Notify /inform higher authorities on the mishap as per R&DSO, Pallom / notification flow chart of particular alert level as per Chief Engineer (Civil – situation at site. Dam Safety & DRIP) - Notify/inform media representatives about the emergency situation. - Define emergency situations for which each medium will be utilized and include an example of a news release that would be the most effective for each possible emergency, avoiding disseminate false/overstated messages among the population.
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District Collector(s)/ - Implement the Notification Flow chart for regional and District Disaster State Disaster Management Contacts Management Authority - Contact Local Law Enforcement Authorities and Relief Authorities under their jurisdiction - Liaising and coordinating with Early Warning Agencies like IMD, CWC, INCOIS, etc. for disaster specific information and disseminating the information for coordinating with the State Govt, and facilitating the deployment of NDRF in the disaster affected districts during disaster - Issue public announcements in coordination with Dam Owner’s officials and media representatives about the status of the emergency event
Relief Authorities - Notify downstream residents in vulnerable areas. (Police Department, - Provide to the District Disaster Management Authority Civil Defense, Army precise and accurate feedback information about the Forces) progress of relief actions and advise when the emergency can be terminated. - Notify to their corresponding command the necessity to deploy more resources to attend the rescue and relief actions.
Media Representatives - Disseminate wide public awareness during emergency condition of Dam through Social Media Platform such as Facebook, Twitter, Whatsapp& Instagram. - The news media, including radio, television and newspapers, should be utilized to the extent available and appropriate. - Pre-plan in coordination with Chief Engineer/Deputy Chief Engineer the most effective way to disseminate the most delicate and common emergency situations among the population. Pre-defined news shall be available in order to improve readiness of the decision- making process.
6.4 Responsibilities for Evacuation Evacuation and relief actions are exclusive responsibilities of Districts Authorities, and Emergency Relief Forces at Local and State Level. Idukki and Ernakulam Districts would be affected by a potential failure/emergency event at the dam site, and therefore, each district’s representative is responsible for evacuation/relief actions in their jurisdiction.
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District Collector(s) acting as District’s Disaster Management Authority isresponsible to coordinate actions along with the following specialized teams/forces: - Police and Fire Departments - National Disaster Management Authority (Response Force) - Civil Defense - Army/ Navy/Air Forces. Responsibilities of Various Authorities for evacuation in case of potential failure/ Emergency event are tabulated below;
Table 6.4.1 Responsibilities for Evacuation Authorities Responsibilities District Collector(s) UNDER BLUE ALERT (Preparedness) (Idukki & Ernakulam) - Participate in review, updates and exercises of the acting as District’s Disaster EAP. Management Authority - Dissemination among the population and making them aware about their own risk. - Conduct training/education programs among the population in regard, how to act before, during and after emergency events such as flash floods. UNDER ORANGE ALERT - Prepare emergency response personnel for possible evacuations that may be needed if a RED alert is declared. - Provide resources as necessary to the dam owners. - Serve as the primary contact responsible for coordination of all emergency actions for potentially affected communities. - Consider drafting a State of Local Emergency in preparation for RED alert. - Maintain close liaison with the district and the State Governments as well as the nearest units of Armed Forces/Central police organizations and other relevant Central Government organizations like Ministries of Communications, Water Resources, Health, Drinking Water, Surface Transport, who could supplement the efforts of the district administration in the rescue and relief operations. - Decide in coordination with the Emergency Planning Manager when to terminate the Emergency. UNDER RED ALERT - Initiate warnings and order evacuation of people under vulnerable areas as per inundation maps (Annexure 3)
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- Direct local emergency response services (may include local law enforcement) to carry out the evacuation of people and close roads/crossings within the evacuation area [see local Evacuation Plan (Section 12.1) &Annexure 3 ] - Declare a State of Local Emergency if required. - Provide resources as necessary to the Dam Owner. - Decide in coordination with the Emergency Planning Manager when to terminate the Emergency.
Police Department - Warn the public under vulnerable areas in their (Idukki & Ernakulam District) jurisdiction as per inundation maps (Annexure 3).
- Secure and control access to evacuated areas.
- Install barricades in the affected bridges and crossings as per Table 12.2.1 and Inundation cum Evacuation Plan (Section 12.1). - Assist in conducting rescue and recovery operation as required. - Ensure proper access to the emergency services. - Prioritize the vehicle movement to the emergency site. - Control the traffic and divert through alternative routes. - Ensure no unauthorized persons entering into the emergency site. - Permit with minimum delay the entry of authorized personnel and recognized outside agencies, vehicles etc. involved in the emergency operations that come to help. - Any other responsibility as entrusted by the high officers. Fire Department(s), - Assist in evacuation operations and initiate the Army & Navy Forces. evacuation of impact areas in cooperation with Emergency Management Agency and Police Department. - Request mutual aid for boats and initiate rescue of trapped residents as needed. - Supply special equipment/teams to support rescue operations (e.g. Helicopters, divers, off-road and amphibious vehicles).
6.5 Responsibilities for Termination and Follow-Up
Once EAP operations have begun under BLUE, ORANGE or RED alerts levels, the EAP
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020 operations must eventually be terminated and follow-up procedures completed. EAP operations can only be terminated after completing operations under RED or BLUE alert levels. If ORANGE Event Level is declared, the operations must be designated RED Event Level or BLUE before terminating the EAP operations. Please check the Action data Sheets (Annexure 4) for further details in when to declare an emergency event terminated. Table 6.5.1 below shows the main responsibilities in the termination and follow-up process. Table 6.5.1 Termination and Follow-up Responsibilities
Officer Designation Responsibilities (During Preparedness and Emergency Events)
Executive Engineer - Declare the termination of the emergency operations (Emergency Planning in coordination with District Disaster Management Manager) Authority and Relief/Response Forces.
- Conduct a review process of the EAP procedures. - Identify EAP procedures that were followed effectively, as well as any ways that the EAP could be improved. - Identify the causes that could have triggered the emergency event and propose actions to improve readiness and early detection. Support from the Dam Safety Organization may be requested in this regard - For Major Emergencies, theEmergency Planning manager will maintain detailed records of cost expended and will prepare a detailed report in this regard. (See Section 10.3 “Reports”) Deputy Chief Engineer - Ensure that all parties that participated in the EAP R&DSO and DRIP Pallom / activities are involved in the review process. - Impose a time frame within which the EAP review is to Chief Engineer (Civil – Dam be completed. Safety & DRIP) - Propose any ways that the EAP could be improved. - Present the final results of the EAP evaluation in a documented report to the Chairman Kerala State Electricity Board Ltd. - Ensure that there is no danger of spread of any epidemics or water borne diseases after the floods. - Identify in coordination with the Emergency planning Manager the causes that could have triggered the emergency event and propose actions to improve readiness and early detection. A report should be presented to the dam owner’s authorities in this regard.
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Disaster Management - Declare the termination of the emergency operations Authority in coordination with Emergency Planning Manager (State & District) and Relief/Response Forces. - Identify EAP procedures that were followed effectively, as well as any ways that the EAP could be improved.
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7. COMMUNICATIONS NETWORKS Every monsoon, Executive Engineer, Dam Safety Division, Pambla in coordination with Kerala State Police Department, will set up temporary wireless communication network at Dam monitoring office near the premises of each dam with the central station at Office of Executive Engineer, Dam Safety Division, Pambla. Local officials and downstream residents will be notified by landline telephone, if available; otherwise via cell phones or emergency personnel (in person or using their radios). The various networks for emergency use include the networks of the following: - Central Station, Pambla - Indian Meteorological Department. - Central Water Commission - District Collectorate, Police and Fire Departments (Idukki and Ernakulam District) - Kerala State Disaster Management Authority - Army/Navy / Air Forces Sample public announcements appear in Annexure 7 and internal suggested phone messages are also available in each notification flow chart. Verification or authentication of the situation can be made by contacting the Emergency Planning Manager and the corresponding district disaster management officials (Idukki& Ernakulam). Television, Radio and bulk SMS facilities of the local Mobile Network Operators can be used as much as possible to notify area residents of the possible dangers.
As per notification responsibilities (Section 6.3), public announcements are to be issued by the concerned District Disaster Management officials and the Executive Engineer, Dam Safety Division, Pambla in coordination with media representatives.
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8. EMERGENCY DETECTION, EVALUATION, AND CLASSIFICATION
8.1. Emergency Detection
8.1.1. Situations Many dam conditions can lead to emergency situations, not all of which will require the implementation of the EAP. However, if any of them occur, the appropriate actions must be taken. Annexure 4 of this EAP shows the most common emergency situations that may emerge in Kundala/Maduppetty Dam/R A Head Works and appurtenances, of the Pallivasal Hydro Electric Project, along with the corresponding specific actions to be done by each of the dam‘s officials. Some of these emergency situations are summarized as follows:
- Severe Storms/Inclement Weather: Although generally not in themselves a threat to the dam, severe storms and other inclement weather conditions can contribute to an existing problem and hinder any remediation efforts. Severe storms also cause the uncontrolled release of floodwater, and increase flow in already rain-swollen areas.
- Tropical cyclones: Tropical cyclones do occur in the area, with the potential for structural damage to the dam, possibly resulting in its failure. If a tropical cyclone has struck in the area, an inspection of the dam for any signs of damage will be appropriate.
- Earthquakes: Maduppetty,Kundala Dams& R A Head Works are located in the Seismic Zone Number III. Therefore, an earthquake is a possibility, and appropriate post- earthquake inspections should be performed.
- Sabotage: Appropriate actions must be taken to protect the dam in case of any attempt for sabotage has been made. 8.1.2. Signs of Failure Dam Site Engineers in coordination with the Executive Engineer (Dam Safety Division, Pambla) are responsible for conducting routine inspections and identifying conditions that could indicate the onset of problems leading to a dam failure. The early identification of potentially dangerous conditions can allow time for the implementation of the EAP. The following sections describe some of the different types of failure which could lead to a dam failure.
- Seepage Failure: Although all earthen embankments allow some minor seepage through the dam or the foundation, excessive, uncontrolled seepage can result in piping (the movement of embankment material in the seepage flow) and lead to failure. Piping can occur for years at a slow rate. If the piping has progressed to a dangerous level, it will be evident by increased flow or the discharge of muddy water (or both). At that stage, immediate action to stop the piping is needed. Fully developed piping is difficult to control and is very likely to result in failure. A whirlpool in the reservoir is a sign of uncontrollable piping and necessitates immediate emergency action.
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- Embankment or Foundation Sliding: Sliding is usually first apparent when cracks or bulges in the embankment appear. Slides with progressive movement can cause failure of the embankment. - Structural Failure: The structural failure or collapse of any non-overflow portion of the dam, spillway or spillway gates could result in loss of the reservoir. A structural failure of a portion of the spillway could cause piping and possibly embankment failure. - Overtopping Failure: Overtopping of the embankment results in erosion of the dam crest. Once erosion begins, it is very difficult to stop.
8.2. Emergency Evaluation and Classification
This section lists the conditions and actions which may be used to classify the level of emergency response, as a guide for the Emergency Planning Manager. Specific dam observations and corresponding emergency classification levels can be found in Annexure 4, along with appropriate and recommended actions to follow in each case.
8.2.1 Internal Alert Condition
BLUE – ‘Watch condition’. A problem has been detected at the dam that requires constant monitoring. At this time, the distress condition is manageable by dam personnel. The Emergency Planning Manager along with the support of site engineers will be responsible for monitoring and repair as soon as possible and implementing the appropriate Notification Flowchart. The following is a list of conditions that would initiate this condition:
- Cloudy or dirty seepage or seepage with an increase in flow, boils, piping, or bogs - Large sinkholes with corresponding seepage anywhere on the embankment or downstream from the toe. - Any slide that degrades the crest of the embankment or that is progressively increasing in size. - Cracking or movement of any concrete structure. - An increase in the reservoir level leading to engagement of the emergency spillway. - Exceptionally heavy rainfall in the catchment of the dam reservoir. 8.2.2 External Alert Condition
ORANGE–This is indicative of a dam condition that is progressively getting worse; and there is a high probability of dam failure. Although there is no immediate danger, the dam could fail if conditions continue to deteriorate. The Emergency Planning Manager will be responsible for initiating immediate repairs, including lowering the reservoir if appropriate and implementing the appropriate Notification Flowchart. The following is a list of conditions that would initiate this condition:
- Any spillway‘s release matching with an ORANGE alert in accordance with the Annexure 4. - Large boils, increasing in size and flow rate, especially if there is flowing muddy water Page 22
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- Significantly increasing seepage, especially flowing muddy water - Slides involving a large mass of material that impairs the crest of the dam and is continuing to move - Sinkholes with seepage flowing muddy water - Large cracks, movement or failure of a portion of any major concrete structure that forms an integral part of the dam - An increase in the reservoir level to near the top of the dam - Overtopping of a dam that is not designed for overtopping - Near to ‘Design Flood’ inflow forecast. 8.2.3 External Alert Conditions
RED – These are ‘Failure’ conditions. Either the dam is in immediate danger of failing or has already failed. No time remains to implement measures to prevent failure. Evacuate immediately. Evacuation efforts will continue until the situation is stabilized. The Emergency Planning Manager is responsible for implementing the appropriate Notification Flowchart. The following is a list of conditions that would initiate imminent dam failure or dam failure conditions: - Any spillway‘s release matching with a RED alert in accordance with the Annexure 4. - Rapidly increasing boils or the presence of new, significantly flowing boils, particularly muddy ones near previously identified ones - Rapidly increasing seepage, especially flowing muddy water - Slides involving a large mass of material or which have degraded the crest of the embankment to a level that approaches the water surface level, or if significant seepage is observed through the slide area - Settlement that is predicted to degrade to the reservoir level - Cracks that extend to the reservoir level - Significant movement or failure of any structure that forms an integral part of the dam - Uncontrollable release of the reservoir 8.3. Previously Known Problems 8.3.1 Kundala Dam Dam Safety Review Panel, Kerala has inspected the dam during October 2013.It is identifiedthat the mortar joints in the upstream side of the non-overflow portion is getting deteriorated and needs guniting. Rule curve is to be prepared for this dam. Standard Operating Procedure (SOP) are to be reviewed. Real Time Data Acquisition and Early Warning System is to be implemented.
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8.3.2 Maduppetty Dam Dam Safety Review Panel, Kerala has inspected the dam during September 2013. Kerala State Dam Safety Authority is also conducting inspections at regular intervals. It is identified that certain portion near the spillway bucket needs repair which is already considered under DRIP. Rule curve is to be prepared for this dam. Standard Operating Procedure (SOP) are to be reviewed. Real Time Data Acquisition and Early Warning System is to be implemented. 8.3.3 R A Head Works Leakage exists near bottom sill of the gates which need to be rectified. Standard Operating Procedure (SOP) is to be reviewed.
Real Time Data Acquisition and Early Warning System is to be implemented.
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9. PREPAREDNESS Preparedness actions are to be taken both before and following the development of emergency conditions and should identify ways of preparing for an emergency, increasing response readiness in a uniform and coordinated manner, and helping to reduce the effects of a dam failure. The following are some steps that could prevent or delay failure after an emergency is first discovered. 9.1 Surveillance Round the clock surveillance at the dam and its appurtenant (on the rim of reservoir (left & right)) will be carried out by site engineers during emergency situations. For this, the posting of special observer of high experience and keen observation is an important requirement of EAP during high flood period. To ensure that the whole system (including civil structures & mechanical installations) is being maintained well up to satisfactory level, the repair maintenance must be carried out as per requirement of O & M of Maduppetty & Kundala Dams and R A Head Works. In addition, it must be ensured that maintenance and upkeep of different components is carried out and will be only possible through deployment of well procedure conversant and trained staff. The list of such persons should be displayed on a photo frame mounting at convenient safe places at dam site and list of local telephone numbers inside the dam & outside the dam area by the Dam Site Officials and it shall be updated from time to time. 9.2. Response on forecast of excessive inflow Kundala & Maduppetty Dams and R A Head Works are in a tributary of Mudirappuzha River. Rain gage stations are established by the KSEBL in Mudirappuzha sub basin. Data from the stations are collected on daily basis by the Dam Site Officials. These data are used for reservoir operation and flood forecasting. 9.3. Response during weekends and holidays
Emergency Planning Manager will be available for emergency response during weekends and holidays. In case of non-availability of the Executive Engineer, the Assistant Executive Engineer (Dam Safety Sub-division, Kallarkutty) will take his responsibilities. 9.4. Response during periods of darkness and adverse weather
Emergency Planning Manager and Site Engineers will arrange for access to generators and lights to adequately monitor the situation. Site Engineers will ensure the generators and emergency lights are well maintained and available under any circumstances. Executive Engineer will be able to access the site during adverse weather conditions by off road vehicle. 9.5. Access to the site The following accesses to the dam are available, and depending of the emergency situation some of them should be used with caution or totally avoided (See Table 9.5.1 and Inundation cum Evacuation Map as per Annexure 9a1, 9a2 & 9a3)
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Table 9.5.1. Condition of access to Dams under Emergency Conditions (Due to Large condition release / Failure of Weir) Spillway discharge/ Emergency condition Approx. From Access description Large release distance (without Dam failure failure) 1. Kundala Dam Munnar To Kundala Dam via. Munnar – Top station 26 km Safe Not Safe Highway Kanthalloor To Kundala Dam via. Kanthalloor – Perumala 15 km Safe Safe Road 2. Maduppetty Dam Munnar To Maduppetty Dam via. Munnar – Top station 12 km With caution Not Safe Highway Kanthalloor To Maduppetty Dam via. Munnar –Top Station 29 km Safe Safe Highway Road 3. R A Head Works Munnar To R A Head Works via. Munnar – Aluva Road 3 km Safe Safe Adimali To R A Head Works via. 22 km Safe Safe Aluva - Munnar
9.6. Remedial Actions Preparedness and remedial actions can be taken in an emergency to prevent the catastrophic failure of the dam, but such repairs should be undertaken with extreme caution. The repairs are only temporary, and a permanent repair should be designed by an engineer as soon as possible. Specific actions for different emergency situations are described in the Annexure 4 (Action Data Sheets). Examples of the actions to be taken for dam‘s officials under the direction of a professional engineer or contractor are described below. In all cases, the appropriate Notification Flowchart must be implemented. Consider the following remedial actions if the dam‘s integrity is threatened by: Seepage Failure - Plug the flow with whatever material is available (hay, bentonite, or plastic) if the entrance is in the reservoir. - Lower the water level in the reservoir by using the low flow outlet and pumping if necessary, until the flow decreases to a non-erosive velocity or until it stops. Place an inverted filter (a protective layer of sand and gravel) on the exit area to hold the material in place.
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- Continue operating at a lower level until a repair is made. Embankment or Foundation Sliding - Lower the water level in the reservoir by using the low flow outlet and pumping if necessary, at a rate and to an elevation considered safe, given the slide condition. - Stabilize the slide, if on the downstream slope, by weighting the toe area below the slide with soil, rock, or gravel. - Continue operating at a lower level until a repair is made. Structural Failure - Implement temporary measures to protect the damaged structure, such as placing rock riprap in the damaged area. - Lower the water level to a safe elevation through the low flow outlet and by pumping if necessary.
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10. SUPPLIES AND RESOURCES
10.1. Contracts
If the project personnel of the dams (Kundala, Maduppetty and R A Head Works) and resources prove to be inadequate during an emergency, requests will be made for assistance from other local jurisdictions, other agencies, and industry, as needed. Such assistance may include equipment, supplies, or personnel. All agreements will be entered into by the following authorized officials, as deemed necessary to prevent the failure of the dam:
- Emergency Planning Manager. - Deputy Chief Engineer, Research and Dam Safety Organization, Pallom, Kottayam - Chief Engineer, Dam Safety and DRIP, Dam Safety Organization, Pallom, Kottayam
10.2. Equipment and Supplies
Equipment that is available for use and local contractors that can be contacted to provide equipment during an emergency event are listed in Annexure 8.
10.3. Reports
Pre-monsoon and post-monsoon inspections of the dam are made every year by the Site Engineers in coordination with the Emergency Planning Manager to evaluate its structural safety, stability, and operational adequacy. In the event of an abnormal occurrence, reference to these reports, particularly the photographs, can be beneficial in the evaluation of a potential problem. Pre-monsoon inspections will be carried out generally in the month of May and Post-monsoon inspection during December.
Technical records such as drawings and inspection reports are stored and carefully maintained at the Control Room in dam site and in the Emergency Planning Manager’s Office. Site Engineers shall be familiar with the location of the documents in the event of an emergency situation.
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11. EMERGENCY OPERATIONS CENTRE 11.1. Activity log Any unusual or emergency condition should be documented, including the following: - Activation or deactivation of emergency facilities - Emergency notifications to other local governments and to state and central government agencies - Significant changes in the emergency - Major commitments of resources or requests for additional resources from external sources - Telephone calls will be recorded in chronological order - Issuance of protective action recommendations to the public - Evacuations and casualties - Termination of the incident 11.2. Costs of the Emergency Operations Centre For major emergencies, the emergency operations center will maintain detailed records of costs expended. These records may be used to recover costs from the responsible party or insurers, or as a basis for requesting financial assistance for certain allowable response and recovery costs from the state or central government. Documented costs should include: - Personnel costs, especially overtime - Equipment operation - Equipment leasing and rental - Contract services to support emergency operations - Specialized supplies expended in emergency operations
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12. INUNDATION AREA 12.1 Inundation Maps The inundation map (Annexure 3a, 3b & 3c) illustrates the areas subject to flooding fromfailure of Kundala, Maduppetty & R A Head Works and large control releases through the spillways and is attached as separate drawing volume in A3 format. The maps were prepared using the results of a two-dimensional flow analysis considering cases of Overtopping failure, Non-Flood failure and Large control releases and depict the areas likely to be inundated as well as the flood arrival time from the beginning of the breach to the moment the location start to be inundated. Table 12.1 shows various scenarios included in the Emergency Action Plan
Table 12.1- Scenarios included in the Emergency Action Plan
Annexure Scenario Hazard Parameters Number Index of Tiles
Annexure 3a – Kundala Dam
3-A1 Overtopping Failure Depth, Arrival Time, Velocity, Water (5 x surface Elevation (WSE), Vulnerability (5 12each) Nos.)
3-A2 Non-flood Failure Depth, Arrival Time, Velocity, Water (5 x 12 surface Elevation (WSE), Vulnerability (5 each) Nos.)
3-A3 Large control release Depth, Velocity, Water surface (4 x 1 Elevation (WSE), Vulnerability (4 Nos.) each)
Annexure 3b – Maduppetty Dam
3-B1 Overtopping Failure Depth, Arrival Time, Velocity, Water (5 x 9 surface Elevation (WSE), Vulnerability (5 each) Nos.)
3-B2 Non-flood Failure Depth, Arrival Time, Velocity, Water (5 x 9 surface Elevation (WSE), Vulnerability (5 each) Nos.)
3-B3 Large control release Depth, Velocity, Water surface (4 x 9 Elevation (WSE), Vulnerability (4 Nos.) each)
Annexure 3c – R A Head Works
3-C1 Overtopping Failure Depth, Arrival Time, Velocity, Water (5 x 10 surface Elevation (WSE), Vulnerability (5 each) Nos.)
3-C2 Large control release Depth, Velocity, Water surface (4 x 10 Elevation (WSE), Vulnerability (4 Nos.) each)
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12.2Inundated Areas
12.2.1 Kundala Dam Due to the failure of Kundala Dam, part of Panchayats, Devikulam, Munnar, Bisonvalley, Vellathooval, Rajakkad and Konnathadi of Idukki District will be getting inundated. It is also determined that there are significant numbers of buildings/roads, located on the banks and adjoining areas of stream Mudirappuzha could be affected due to a large control discharge from the spillways or flood wave resulting from dam breach scenario. The most important crossing structures and parts of roads, likely to be submerged due to various scenarios, are summarized in the Table 12.2.1.1& 12.2.1.2below and shown in Inundation cum Evacuation Map (Annexure 9a1) as well.
Table 12.2.1.1 - List of Main Crossing Structures likely to be submerged
Sl. No. Structure Ref. Bridge Name/ Location Tile ID No. in Inundation cum Evacuation Plan (Annexure – 9a1)
1 B1 Estate Road downstream Kundala 1/6
2 B2 Near Kuttiyar Valley d/s Maduppetty 2/6
3 B3 Estate Road 2/6, 3/6
4 B4 On Munnar - Devikulam Road 3/6
5 B5 Munnar Town 3/6
6 B6 Munnar Town - New Bridge 3/6
7 B7 R A Head Work 3/6
8 B8 D/s Pallivasal PH 5/6
9 B9 Pottankad – Bisonvalley Road 5/6
10 B10 Anachal - Kunjithanni Road 5/6
11 B11 Adimali Rajakkad Road - Near Sengulam PH 6/6
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Table 12.2.1.2 - List of roads likely to be submerged
Sl. No. Road Details/landmarks Reference App. length Tile ID No. in under Inundation cum submergence Evacuation Plan (km) (Annexure -9a1)
1 Chenduvarai – Vattavada Road (Near L1 1.85 1/6 Kundala Dam)
2 Colony road (D/s of Kundala Dam) L2 2.2 1/6
3 Maduppetty - Kuttiyar Valley RoadD/s L3 4.75 2/6 Maduppetty Dam)
4 Maduppetty - Tea Estate Road at right L4 3.2 2/6 Bank
5 Munnar Gudarala Road L5 4.9 2/6, 3/6
6 Aluva - Munnar Road (Near Munnar L6 2.9 3/6 town)
7 Munnar - Maduppetty Road (Near L7 0.3 3/6 Munnar town)
8 Munnar - Nallathanni Road (Near L8 0.5 3/6 Munnar town)
9 Munnar - Devikulam Road L9 0.8 3/6
10 Estate road to Pothanmade L10 5.8 3/6
11 Estate road - right bank L11 4.3 3/6
12 Estate Road right Bank - RA L12 1.3 3/6 Headworks
The potential consequences either due to a hypothetical breach scenario or due to a large release from the spillways are involved in the Idukki district. The Panchayats which are likely to be suffered with significant impact are listed in the Table 12.2.1.3 below. The most affected areas in a failure scenario are those located near the river banks where the hydraulic conditions are extreme. The factors like isolation during a flood, effective warning time, rate of rising of floodwater and time of the day play important roles that shall be considered by the relief authorities. Table 12.2.1.3 includes the Panchayat-wise total area likely to be inundated, which can help/assist district authorities to prioritize in identifying critical infrastructure and sites with population at risk that may require protective measures and warning and evacuation planning. This Table can be used along with inundation maps included in Annexure 3.
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Table 12.2.1.3 Affected Panchayats within the Inundation area (Failure Scenario)
District Panchayat App. Area Tile ID No. in Inundation affected cum Evacuation Plan (Sq.Km) (Annexure 9a1)
Devikulam 3.4 1/6, 2/6, 3/6
Munnar 0.5 3/6
Bisonvalley 0.4 3/6, 4/6, 5/6 Idukki Vellathooval 0.3 5/6, 6/6
Rajakkad 0.07 5/6
Konnathadi 0.07 5/6, 6/6
12.2.2 Maduppetty Dam Due to the failure of Maduppetty Dam, part of Panchayats, Devikulam, Munnar, Bisonvalley, Vellathooval, Rajakkad and Konnathadi, Kanjikuzhy, Adimali of Idukki Districtand Kavalangad, Kuttampuzha, Keerampara, Vengoor, Ayyampuzha & Kothamangalam Municipality of Ernakulam District will be getting inundated. It is also determined that there are significant numbers of buildings/roads, located on the banks and adjoining areas of stream Mudirappuzha and banks of River Periyar could be affected due to a large control discharge from the spillways or flood wave resulting from dam breach scenario. The most important crossing structures and parts of roads, likely to be submerged due to various scenarios, are summarized in the Table 12.2.2.1 & 12.2.2.2below and shown in Inundation cum Evacuation Plan (Annexure 9) as well.
Table 12.2.2.1 - List of Main Crossing Structures likely to be submerged
Sl. No. Structure Ref. Bridge Name/ Location Tile ID No. in Inundation cum Evacuation Plan (Annexure – 9a2)
1 B1 Near Kuttiyar Valley d/s Maduppetty 1/6
2 B2 Estate Road 1/6
3 B3 On Munnar - Devikulam Road 1/6
4 B4 Munnar Town 1/6
5 B5 Munnar Town - New Bridge 1/6
6 B6 R A Head Work 1/6
7 B7 D/s Pallivasal PH 2/6
8 B8 Pottankad – Bisonvalley Road
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9 B9 Anachal - Kunjithanni Road 2/6
10 B10 Adimali Rajakkad Road - Near Sengulam PH 2/6
11 B11 Bridge downstream Kallarkutty 2/6
12 B12 Panamkutty New Bridge 2/6
13 B13 Panamkutty Old Bridge 2/6
14 B14 Thottiyar Bridge 3/6
15 B15 Neriyamangalam Bridge 4/6
16 B16 Bridge on Thattekkad - Kuttampuzha Road 6/6
17 B17 Bhoothathankettu Barrage 6/6
Table 12.2.2.2 - List of roads likely to be submerged
Sl. No. Road Details/landmarks Reference App. length Tile ID No. in under Inundation cum submergence Evacuation Plan (km) (Annexure -9)
1 Kuttiyar valley road M1 1.26 1/6 1/6 2 Estate Road M2 1.65 1/6 3 Munnar - Devikulam Road (from M3 1.4 Munnar) 1/6 4 Munnar - Gudarala Road M4 1.95 1/6 5 Munnar -Pothanmedu Road M5 6 1/6 6 Colony Road M6 1.2 1/6 7 Colony Road M7 2.2 1/6 8 Colony Road M8 1.9 1/6 9 Colony Road M9 0.65 1/6 10 Munnar Nadayar Road M10 0.7 1/6 11 General Hospital Road M11 1.1 1/6 12 Munnar - Pooyamkutty Road M12 2.2 1/6 13 Munnar- Marayoor Road M13 1.2 1/6 14 Munnar - Maduppetty Road M14 0.95 1/6 15 Colony Road M15 1.8 1/6 16 Colony Road M16 1.5
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1/6 17 Aluva - Munnar Road M17 3.7 1/6 18 Attukad Waterfall Road M18 1
19 Anachal Kunchuthanni Road M19 2.8 2/6 2/6 20 EllackalThekkumkanam Road M20 0.8 2/6 21 Vellathooval Road M21 0.3 2/6 22 Adimali – Nedumkandam Road – M22 2.5 Stretch I (From Vellathooval Bridge) 2/6 23 Kallarkutty – Pambla Road (Up to M23 4.5 Panamkutty) 2/6,3/6 24 Neriyamangalam – Painavu road M24 28.2 (From Panamkutty towards Neriyamanagalam)
25 Neriyamangalam – Chelad road M25 18.1 4/6,5/6,6/6
26 Kothamangalam – Idamalayar Road ( M26 7 4/6,5/6,6/6 From Bhoothathankettu towards Kothamangalam)
27 Thattekkad – Kuttampuzha Road M27 4.3 4/6,6/6
The potential consequences either due to a hypothetical breach scenario or due to a large release from the spillways are involved in the Idukki district. The Panchayats which are likely to be suffered with significant impact are listed in the Table 12.2.2.3 below. The most affected areas in a failure scenario are those located near the river banks where the hydraulic conditions are extreme. The factors like isolation during a flood, effective warning time, rate of rising of floodwater and time of the day play important roles that shall be considered by the relief authorities. Table 12.2.2.3 includes the Panchayat -wise total area likely to be inundated, which can help/assist district authorities to prioritize in identifying critical infrastructure and sites with population at risk that may require protective measures and warning and evacuation planning. This Table can be used along with inundation maps included in Annexure 3.
Table 12.2.2.3: Affected Panchayats within the Inundation area (Failure Scenario)
District Panchayat App. Area Tile ID No. in Inundation affected cum Evacuation Map (Sq.Km) (Annexure 9a2)
Devikulam 2.8 1/6
Idukki Munnar 0.7 1/6
Bisonvalley 0.4 2/6
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Vellathooval 2.8 2/6
Rajakkad 0.07 2/6
Konnathadi 0.47 2/6
Kanjikkuzhy 2.4 2/6,3/6
Adimali 3.8 3/6,4/6
Ernakulam Kavalangad 7.8 3/6,4/6,5/6,6/6
Kuttampuzha 8.2 3/6,4/6,5/6,6/6
Keerampara 9.3 4/6,5/6,6/6
Pindimana 2.1 4/6,5/6,6/6
Vengoor 0.3 6/6
Ayyampuzha 0.3 6/6
Kothamangalam 0.6 5/6,6/6
12.2.3 R A Head Works Due to the failure of R A Headworks, part of Panchayats, Devikulam, Munnar, Bisonvalley, Vellathooval, Rajakkad and Konnathadi of Idukki District will be getting inundated. It is also determined that there are significant numbers of buildings/roads, located on the banks and adjoining areas of stream Mudirappuzha could be affected due to a large control discharge from the spillways or flood wave resulting from dam breach scenario. The most important crossing structures and parts of roads, likely to be submerged due to various scenarios, are summarized in the Table 12.2.3.1& 12.2.3.2below and shown in Inundation cum Evacuation Plan (Annexure 9) as well.
Table 12.2.3.1 - List of Main Crossing Structures likely to be submerged
Sl. No. Structure Ref. Bridge Name/ Location Tile ID No. in Inundation cum Evacuation Map (Annexure – 9a3)
1 B1 D/s Pallivasal PH 1/3,2/3
2 B2 Pottankad – Bisonvalley Road 2/3
3 B3 Anachal - Kunjithanni Road 2/3
4 B4 Adimali Rajakkad Road - Near Sengulam PH 3/3
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Table 12.2.3.2 - List of roads likely to be submerged
Sl. No. Road Details/landmarks Reference App. length Tile ID No. in under Inundation cum submergence Evacuation Map (km) (Annexure -9a3)
1 Attukad Waterfall Road R1 0.3 1/3
2 Pottakad – Bisonvalley Road R2 0.4 2/3
3 Ellackal – Thekkumkanam Road R3 0.6 2/3
4 Vellathooval Road R4 0.4 3/3
The potential consequences either due to a hypothetical breach scenario or due to a large release from the spillways are involved in the Idukki district. The Panchayats which are likely to be sufferedwith significant impact are listed in the Table 12.2.3.3 below. The most affected areas in a failure scenario are those located near the river banks where the hydraulic conditions are extreme. The factors like isolation during a flood, effective warning time, rate of rising of floodwater and time of the day play important roles that shall be considered by the relief authorities. Table 12.2.3.3 includes the Panchayat -wise total area likely to be inundated, which can help/assist district authorities to prioritize in identifying critical infrastructure and sites with population at risk that may require protective measures and warning and evacuation planning. This Table can be used along with inundation maps included in Annexure 3.
Table 12.2.3.3 Affected Panchayats within the Inundation area (Failure Scenario)
District Panchayat App. Area Tile ID No. in Inundation affected cum Evacuation Map (Sq.Km) (Annexure -9a3)
Devikulam 0.02 1/3
Munnar 0.01 1/3
Bisonvalley 0.4 1/3,2/3 Idukki Vellathooval 0.3 2/3,3/3
Rajakkad 0.07 2/3
Konnathadi 0.07 2/3,3/3
12.3. Local Evacuation Plan If imminent failure of the dam with uncontrolled downstream flooding is anticipated, local disaster management and law enforcement personnel should notify those downstream (Table 12.3), for evacuation in the most expedient manner possible following the procedure given in the notification flow charts of this document (Notification Flow Chart – Annexure 5,
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6a, 6b& 6c). Local law enforcement officials, along with local mobile network operators, radio and media representatives can best spread the notice for evacuation (See Responsibilities Sections, 6.4 and 6.5). In addition, Annexure4 (Emergency Level Determination & Action Data Sheets) can be used as support in the decision-making process either to escalate or downgrade emergency event. The most important actions that should be taken during an evacuation process are: - Police Departments will barricade all bridges and roads that could possibly be flooded to prevent access to the affected area. These bridges include all crossings of main river and its tributaries as well as those affected roads shown in the Annexure 9a1, 9a2, 9a3 (Inundation cum Evacuation Maps –Kundala, Maduppetty & R A Head Works). Crossings locations in the inundation indicate the appropriate barricade locations under the responsibility of local law-enforcement authorities. - The Districts Disaster Management Authorities (Districts Collectors) will assist with the notification of all persons and agencies involved (relief authorities), with the possibility of additional support—including contacting others not accessible by radio or telephone. - Relief Authorities (Police, Fire, Army) are generally familiar with developed areas in their jurisdiction. Such knowledge, coupled with the requirements of state law that they respond to disasters, make them the logical officials to be notified and to spread the warning message to all areas subject to flooding. - Based on the specific results of the dam breach analysis (wave arrival time), a local evacuation plan has been developed to assist disaster management authorities in the relief actions. - An Inundation cum Evacuation Map (Panchayat wise) showing the areas likely to be inundated, estimated flood arrival time, roads/crossing structures likely to be submerged, nearby relief camps identified etc. is shown in Annexure 9 a and a table with Panchayat wise details of Flood Hazard reference values and nearby shelters identified is shown in Annexure 9b1, 9b2 & 9b3 for Kundala, Maduppetty & R A Head Works.
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13. IMPLEMENTATION
13.1. Development
This EAP version has been prepared by Kerala State Electricity Board Ltd. based on the inundation maps (Tier 1) prepared by Central Project Management (CPMU), Central Water Commission (CWC). The document has to be sent to Central Project Management Unit (CPMU), Central Water Commission (CWC) for review, and their comments will be incorporated into this document before final publication.
13.2. Updating
Copies of the EAP have been provided to all authorities/officials included in the distribution list and the document has been approved and signed by the Chief Engineer (Civil – Dam Safety & DRIP). This plan will be reviewed and updated annually before the 1st of June of every year by the Emergency Planning Manager and the Deputy Chief Engineer, Research and Dam Safety Organization, Pallom, Kottayam. This review will involve corresponding personnel from local disaster management agencies.
The Deputy Chief Engineer, Research and Dam Safety Organization, Pallom, Kottayam will organize every year prior to monsoon an orientation meeting to introduce the revised EAP to local officials, emergency responders. This meeting will give an opportunity to all the stakeholders to review and comment on EAP document and their respective roles.
The Emergency Planning Manager will review and complete all items on the Annual EAP Evaluation Checklist in Annexure 10. After the annual update is complete, a new Approval and Implementation sheet will be attached and the annual update will be documented on the Plan Review and Update sheet in Annexure 11.
If revisions to the EAP are made as a result of the annual update, such changes will be recorded on the Log Sheet of Changes form at the front of the report. A copy of the updated portions of the EAP will be sent to the State DSO and all other concerned as per the EAP Distribution List. If the EAP was reviewed and revisions were not required, the [Dam Owner] will submit written notification to all concerned that no updates to the EAP have been adopted or implemented.
13.3. Testing
The Deputy Chief Engineer, Research and Dam Safety Organization, Pallom, Kottayam, shall organize the following exercises as specified below: - Orientation (Stakeholders’ Consultation): The Deputy Chief Engineer will organize an orientation meeting every year with local responders and stakeholders to solicit input, established roles during emergency situation and facilitate reliable responses to the emergencies. In orientation meeting, the Emergency Planning Manager will introduce the revised EAP to local officials and emergency responders and provide those entities
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the opportunity to review and comment on the documents and on their roles and responsibilities, described in EAP. - Tabletop exercises: Deputy Chief Engineer and Emergency Planning Manager will organize a table-top drill once in 2 years to discuss and review the simulated or imaginary emergency situation. The tabletop drill involves a meeting of Emergency Planning Manager with local and state Disaster Management Officials in a conference room. The drill begins with a description of a simulated event and proceeds with discussions by the participants to evaluate the EAP and response procedures, and to resolve concerns regarding coordination and responsibilities. Any problems identified during a drill should be included in revisions to the EAP. - Before the tabletop exercise begins, meeting participants will visit the dam to familiarize with the dam site. Emergency Planning Manager will present a scenario of an unusual or emergency event at the dam. The scenario will be developed prior to the exercise.Once the scenario has been presented, the participants will discuss the risk involved, responses and related actions that they would take to address and resolve the scenario throughout the exercise. The exercise provides an opportunity to discuss EAP and response procedures and resolve the questions throughout the exercise. It will also clarify roles and responsibilities and will identify additional threat mitigation and preparedness actions. Records and reporting of the main conclusions/findings of both meetings will be maintained in Annexure 11 and following the deadline given in Table 13.3.1
Table 13.3.1- EAP exercise/testing requirements
Exercise Schedule Reporting Deadlines
Orientation (Stake Annual Pre-event : Submit agenda to stake holders 30 days Holders consultation) before meeting Post-event : Update (Annexure 10) within 30 days after meeting. Table top Exercise Once in Pre-event : Submit exercise plan and schedule to every 2 participants 90 days before exercise. years Post-event : Update (Annexure 10) and submit evaluation report within 60 days after exercise.
13.4. Training The Deputy Chief Engineer, Research and Dam Safety Organization, Pallom, Kottayam will ensure all people involved in the EAP be trained to guarantee that they are thoroughly familiar with its elements, the availability of equipment, and their responsibilities and duties under the plan. Personnel will be trained in problem detection, evaluation, and appropriate corrective measures. This training is essential for proper evaluation of developing situations at all levels of responsibility. Training records will be maintained also in Annexure 12.
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Annexure 1a– Kundala Dam (Dam Description)
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KUNDALADAM
General
Dam Name : KUNDALA DAM Name of River : Mudirappuzha Dam location : Idukki District.
Lat/Long : 770 11’ 55” E/100 08’ 37” N Seismic Zone : Zone III Year of Starting Dam Construction : 1941 Year of first Impoundment : 1947 Year of commissioning of Dam : 1947 Name of Immediate Upstream Dam : Nil Name of Immediate Downstream Dam : Maduppetty Emergency Planning Manager : Thomas Alexander Phone Number : 9446008421 Main Dam Type : Masonry Gravity Length : 259 m Maximum Height : 26.2 m Top Width : 3.05 m Top of Dam : 1759.92 m Drainage area : 36.24 km2 Spillway Crest level : 1756.86 m No of gate : 5 Size : 5.18 m X 2.74 m Lower Level outlet : 1 No 1.8 m dia. at 1735.84 m Reservoir Full Reservoir Level : 1758.69 m Live Storage : 7.65 Mm3 Gross storage : 7.78 Mm3 Reservoir Spread Area at FRL : 0.65 Km2
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Annexure 1b - Maduppetty Dam(Dam Description)
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MADUPPETTY DAM
General
Dam Name : MADUPPETTY DAM Name of River : Mudirappuzha Dam location : Idukki District. Lat/Long : 770 07’ 26” E/100 06’ 23” N. Seismic Zone : Zone III Year of Starting Dam Construction : Year of first Impoundment : 1956 Year of commissioning of Dam : 1956 Name of Immediate Upstream Dam : Kundala Name of Immediate Downstream Dam : R A Head Works Emergency Planning Manager : Thomas Alexander Phone Number : 9446008421 Main Dam Type : Concrete Gravity Length : 237.70 m Maximum Height : 46.33 m Top Width : 6.1 m Top of Dam : 1600.20 m Drainage area : 60.5 km2 Spillway Crest level : 1594.71 m No of gate : 3 Size : 6.70 X 4.95 m Lower level outlet : 1.2 m dia. at 1565.15 m Reservoir Full Reservoir Level : 1599.59 m Live Storage : 55.23 Mm3 Gross storage : 54.77 Mm3 Reservoir Spread Area at FRL : 3.24 Km2
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Annexure 1c - R A Head Works(Dam Description)
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R A HEADWORKS
General
Dam Name : R A Head Works Name of River : Mudirappuzha Dam location : Idukki District.
Lat/Long : 100 04’ 05” N & 770 04’01” E Seismic Zone : Zone III Year of Starting Dam Construction : Year of first Impoundment : 1944 Year of commissioning of Dam : 1944 Name of Immediate Upstream Dam : Maduppetty Name of Immediate Downstream Dam : Kallarkutty Emergency Planning Manager : Thomas Alexander Phone Number : 9446008421 Main Dam Type : Barrage (gated structure) Length : 3 Vents 11.6 X 6.7 m Maximum Height : 0.30 m (height of sill) Drainage area : 235 km2 Spillway Crest level : 1445.00 m No of gate : 3 Size : 11.60 X 6.70 m Reservoir Full Reservoir Level : 1450.92 m Gross storage : 0.22 Mm3 Reservoir Spread Area at FRL : 0.01 Km2
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Annexure 2(Vicinity Map)
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Annexure 3a - Kundala Dam(Inundation Map – Separate Booklet)
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Annexure 3b - Maduppetty Dam(Inundation Map – Separate Booklet)
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Annexure 3c – R A Head Works(Inundation Map – Separate Booklet)
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Annexure 4(Action Data Sheet)
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Emergency Level Determination - Action Data Sheet Index
Action Event/General Emergency Specific Observation/Condition Data Observation Level Sheet Unexpected Dam unexpectedly and without warning begins to RED SHEET A Failure fail
Spillway Release, High intensity rainfall in the catchment area of BLUE SHEET B1 Increasing reservoir; Forecast of heavy rain by IMD; large Reservoir Water inflow to reservoir; may need to open gates in an Surface Elevation emergency
Large inflow to reservoir; Water level is 0.30 ORANGE SHEET B2 meter below FRL; Controlled Release through Spillway
Large inflow to reservoir; Water level has crossed RED SHEET B3 FRL; Large Controlled Release through Spillway
Concrete/ Minor cracks (bigger than ¼ cm.) in the BLUE SHEET C1 Masonry structure masonry/concrete structure, without leakage. Cracking Enlarging cracks (bigger than ¼ cm.) and active ORANGE SHEET C2 movement in the masonry/concrete structure, with leakage passing through.
Enlarging cracks with sudden or rapidly RED SHEET C3 proceeding movements/displacements in the masonry/concrete structure with severe leakage passing through.
Instrumentation Instrumentation readings are beyond threshold BLUE SHEET D1 values.
Malfunction of Structural member of a gate, either broken or BLUE SHEET E1 Radial/Sluice severely damaged, which prevent operation of Gate(s) the gate(s). No leakage or uncontrolled discharge is detected. Flood can be routed without damaged/non-operational gate(s).
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Structural member of a gate, either broken or ORANGE SHEET E2 severely damaged, which prevents operation or malfunction of the gate(s). Considerable leakage or uncontrolled discharge is detected. Flood cannot be routed without damaged/non- operational gate(s).
Structural member of a gate, either broken or RED SHEET E3 severely damaged,, which prevents operation or malfunction of the gate(s). Unexpected high discharge is occurring. Flood cannot be routed without damaged/non-operational gate(s).
Earthquake Measurable earthquake felt or reported and dam BLUE SHEET F1 appears to be stable.
Earthquake resulting in visible damage to the dam ORANGE SHEET F2 or appurtenances which can cause a potential dangerous situation
Earthquake resulting in uncontrolled release of RED SHEET F3 water over dam or rapidly developing flow through cracks or rapidly developing erosion through increased seepage
Security Threat/ Unverified bomb threat or verified damage to the BLUE SHEET G1 Sabotage/ dam/appurtenances with no impacts in the Vandalism functioning of the dam
Verified bomb threat that if carried out, could ORANGE SHEET G2 result in damage of the dam/appurtenances that impacts the functioning of the dam OR verified damages due to vandalism that impacts the normal operation of the dam.
Detonated bomb resulting in visible damage to RED SHEET G3 the dam or appurtenances OR verified damages due to vandalism causing an uncontrolled water release
Embankment Reservoir water surface 1 m below top of the dam ORANGE SHEET H2 Overtopping Water from the reservoir is flowing over the top RED SHEET H3 of the dam
Seepage Seepage through dam body. New or minor BLUE SHEET J1 seepage at toe, on slope of embankment, abutments or galleries, water flowing clear
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New, seriously or rapidly increasing seepage flow ORANGE SHEET J2 rate at toe, on slope of embankment, abutments or galleries, water flowing cloudy.
Serious seepage at toe, on slope of embankment, RED SHEET J3 abutments or galleries. Un controllable muddy water flowing. Failure of dam is imminent.
Sinkholes Sinkholes anywhere in the embankment or within BLUE SHEET K1 150 m downstream from
Sinkholes with seepage or flowing water ORANGE SHEET K2 anywhere in the embankment or within 150 m downstream of toe
Sinkholes rapidly enlarging with muddy water RED SHEET K3 anywhere in the embankment or within 150 m downstream of toe.
Embankment Cracks in the embankment crest or slopes greater BLUE SHEET L1 cracking/ than ½ cm or ¼ inch wide and considerable length Movement without seepage.
Cracks in the embankment crest or slopes greater ORANGE SHEET L2 than ½ cm or ¼ inch wide and considerable length with active movement/ slippage and seepage through cracks.
Sudden or rapidly proceeding slides of the RED SHEET L3 embankment slopes. Cracks that extends up to the reservoir elevation.
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Event Description: RED ALERT SHEET A UNEXPECTED FAILURE
RECOMMENDED ACTIONS
Emergency Planning Manager (May be split responsibilities, i.e. One person at the dam handling on site actions and a differentperson who can make notifications. APPLICABLE TO ALL ACTION DATA SHEETS) A. Implement the “Failure Condition Notification Flowchart”, using pre-scripted message. B. Activate the Emergency Operations Center C. Recommend to the Districts Collectors and Disaster Management authorities IMMEDIATE EVACUATION downstream of the dam and affected areas as per Local Evacuation Plan D. Stay a safe distance away from the dam. The immediate concern is the safety of the downstream public. E. Record all information, observations, and actions on an Event Log Form (FORM 1).
Site’s Engineers
F. Stay a safe distance away from the dam
G. Observe conditions in site periodically and provide decision support as appropriate.
Deputy Chief Engineer/Chief Engineer
H. Communicate and keep informed the Chairman, KSEBL td.
State Dam Safety Organization
I. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS Evaluate conditions CONTINUOUSLY and determine if: A. The event warrants downgrade if there is no longer an impending threat of dam failure with no additional rainfall occurring YET there is damage to the dam that prevents safe impoundment of water. All contacts on Event Level 1 Notification Flow Chart shall be notified of downgrade to Event Level 3.
B. Event may be Terminated only when either: - There is no longer an impending threat of dam failure with no additional rainfall occurring and it has been determined by Dam Safety staff safe to impound water or; - The dam has failed AND there is no longer a threat to the downstream public
All contacts on Notification Flow Chart shall be updated of changes. Based on this evaluation, follow the appropriate action A. EVENT LEVEL DOWNGRADE B. TERMINATION Monitor conditions until damage Go to Termination and is repaired Follow-up
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Event Description: SPILLWAY RELEASE : High intensity rainfall in BLUE ALERT the catchment area of reservoir ; Forecast of SHEET B1 heavy rain by IMD; large inflow to reservoir ; may need to open gates in an emergency RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Watch Condition Notification Flowchart”, using pre-scripted message. B. Make careful observation and inspection of every part of the dam; this should be done to monitor without compromising the safety of anyone performing the tasks. C. Record all information, observations, and actions on an Event Log Form (FORM 1). D. Contact the Deputy Chief Engineer/Chief Engineer at least daily to report the latest observations and conditions. If conditions change significantly, go to re-evaluation/decision section and follow relevant steps immediately. Site’s Engineers E. Observe conditions in site periodically and provide decision support as appropriate. F. Provide corrective actions or work as required. Deputy Chief Engineer/Chief Engineer G. Direct specific and appropriate procedures for reservoir operations. State Dam Safety Organization H. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS Evaluate conditions CONTINUOUSLY and Determine if: A. The event can be terminated when the intensity of rainfall is dwindling as per the Forecast. B. The event warrants escalation to ORANGE alert if the reservoir level reaches one meter below FRL. All contacts on Notification Flow Chart shall be updated of changes.
Based on this evaluation, follow the appropriate action A. EVENT LEVEL DOWNGRADE B. TERMINATION C. EVENT LEVEL ESCALATION Monitor conditions until damage is Go to Termination and Go to SHEET B2 repaired Follow-up (ORANGE Alert)
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Event Description: ORANGE ALERT SPILLWAY RELEASE: Large inflow to reservoir; SHEET B2 Water level is 0.30 meter below FRL; Controlled Release through Spillway. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flow Chart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Make careful observation and inspection of every part of the dam; this should be done without compromising the safety of anyone performing these tasks. Monitor water level in the reservoir in every hour. D. Record all information, observations, and actions on an Event Log Form (FORM 1). E. Contact the Deputy Chief Engineer/Chief Engineer hourly to report the latest observations and conditions. If conditions change significantly, go to re-evaluation/decision section and follow relevant steps immediately Site’s Engineers F. Observe conditions in site periodically and provide decision support as appropriate. G. Provide corrective actions or work as required. Deputy Chief Engineer/Chief Engineer H. Direct specific and appropriate procedures for reservoir operations. State Dam Safety Organization I. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS
Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to BLUE alert if rainfall is dwindling as per the Forecast. B. The event remains at the current Event Level (No change in situation). C. The event warrants escalation to RED alert if the integrity of the dam appears to be threatened by sudden or rapidly proceeding movements/displacements. All contacts on Notification Flow Chart shall be updated of changes
Based on this Evaluation, follow the appropriate action
A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS C. EVENT LEVEL THE SAME ESCALATION
Go to SHEET B1(BLUE Alert) Continue recommended Go to SHEET B3 (RED actions on this sheet Alert)
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Event Description: RED ALERT SPILLWAY RELEASE: Large inflow to reservoir; SHEET B3 Water level has crossed FRL; Large Controlled Release through Spillway. RECOMMENDED ACTIONS Emergency Planning Manager
A. Implement the “Failure Condition Notification Flowchart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Recommend to the Districts Collectors and Disaster Management Authorities IMMEDIATE EVACUATION downstream of the dam and affected areas as per Local Evacuation Plan. D. Stay a safe distance away from the dam. The immediate concern is the safety of the downstream public E. Record all information, observations, and actions on an Event Log Form (FORM 1). Site’s Engineers F. Observe conditions from a safe place at dam site periodically and provide decision support as appropriate. Deputy Chief Engineer/Chief Engineer/State Dam Safety Organization G. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS based upon ANNEX TABLE I Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to ORANGE alert if there is no longer an immediate impending threat of dam failure and water level reduced to 1 m below FRL. B. The event remains at the current Event Level (No change in situation).
All contacts on Notification Flow Chart shall be updated of changes.
Based on this determination, follow the appropriate action A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS THE SAME Go to SHEET B2(ORANGE Alert) Continue recommended actions on this sheet
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Event Description: BLUE ALERT STRUCTURE CRACKING: Minor cracks (bigger SHEET C1 than ¼ cm.) in the masonry/concrete structure, without leakage. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Watch Condition Notification Flowchart”, using pre-scripted message. B. Make careful observation and inspection of every part of the dam; this should be done to monitor without compromising the safety of anyone performing the tasks. C. Monitor water levels in the reservoir. Install a measurement device to monitor progress/movement in crack(s). D. Classify and describe the type of crack pattern and evaluate possible causes. E. Record all information, observations, and actions on an Event Log Form (FORM 1). F. Contact the Deputy Chief Engineer/Chief Engineer at least daily to report the latest observations and conditions. If conditions change significantly, go to re-evaluation/decision section and follow relevant steps immediately. Site’s Engineers G. Photograph and record the location, direction (longitudinal, vertical, diagonal etc.), depth, length, width and offset of each crack that has been discovered. Compare observations with earlier results. H. Closely monitor the crack for changes and look for structural damage, including mis alignment, settlement, vertical and horizontal displacements. Deputy Chief Engineer/Chief Engineer I. Review the pertinent information in order to recommend appropriate actions to Emergency Planning Manager. Provide corrective actions or works as required. State Dam Safety Organization J. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS Evaluate conditions CONTINUOUSLY and Determine if: A. The event can be terminated if it is determined that the dam no longer pauses an immediate threat to downstream. B. The event remains at the current Event Level. C. The event warrants escalation to ORANGE alert if the cracks are enlarging AND leakage begins to flow from cracks. All contacts on Notification Flow Chart shall be updated of changes. Based on this evaluation, follow the appropriate action A. TERMINATION B. EVENT LEVEL REMAINS THE C. EVENT LEVEL SAME ESCALATION Go to Termination and Follow-up Continue recommended Go to SHEET C2 actions on this sheet. (ORANGE Alert)
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Event Description: STRUCTURE CRACKING: Enlarging cracks ORANGE ALERT (bigger than ¼ cm.) and active movement in SHEET C2 the masonry/concrete structure, with leakage passing through. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flow Chart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Make careful observation and inspection of every part of the dam; this should be done without compromising the safety of anyone performing these tasks. Monitor closely for changes in the spillways and outlet structures that may be affected. Items to be monitored include vertical, horizontal and lateral displacements, structural cracking and tilting of spillway walls. D. Monitor water levels in the reservoir and development of new crack(s). E. Record all information, observations, and actions on an Event Log Form (FORM 1). F. Contact the Deputy Chief Engineer/Chief Engineer hourly to report the latest observations and conditions. If conditions change significantly, go to re-evaluation/decision section and follow relevant steps immediately. Site’s Engineers G. Observe conditions in site periodically and provide decision support as appropriate. H. Provide corrective actions or work as required. Deputy Chief Engineer/Chief Engineer I. Study an emergency lowering of the reservoir. State Dam Safety Organization J. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS
Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to BLUE alert if the water level is lowered to safe level. Event may not be terminated until repairs are made and causes of crack (s) have been determined. B. The event remains at the current Event Level. C. The event warrants escalation to RED alert if the integrity of the dam appears to be threatened by sudden or rapidly proceeding movements/displacements. All contacts on Notification Flow Chart shall be updated of changes
Based on this Evaluation, follow the appropriate action
A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS C. EVENT LEVEL THE SAME ESCALATION
Go to SHEET C1(BLUE Alert) Continue recommended Go to SHEET C3 (RED actions on this sheet Alert)
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Event Description: STRUCTURE CRACKING: Enlarging cracks with RED ALERT SHEET C3 sudden or rapidly proceeding movements/ displacements in the masonry/concrete structure with severe leakage passing through. RECOMMENDED ACTIONS Emergency Planning Manager
A. Implement the “Failure Condition Notification Flowchart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Recommend to the Districts Collectors and Disaster Management Authorities IMMEDIATE EVACUATION downstream of the dam and affected areas as per Local Evacuation Plan. D. Stay a safe distance away from the dam. The immediate concern is the safety of the downstream public E. Record all information, observations, and actions on an Event Log Form (FORM 1). Site’s Engineers F. Observe conditions from a safe place at dam site periodically and provide decision support as appropriate. Deputy Chief Engineer/Chief Engineer/ State Dam Safety Organization G. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS based upon ANNEX TABLE I Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to ORANGE alert if there is no longer an immediate impending threat of dam failure and water level reduced to 1 m below FRL. B. The event remains at the current Event Level (No change in situation). C. Event may be Terminated only when: - The dam has failed AND there is no longer a threat to the downstream public
All contacts on Notification Flow Chart shall be updated of changes.
Based on this determination, follow the appropriate action A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS THE C. TERMINATION SAME Go to SHEET C2(ORANGE Alert) Continue recommended Go to Termination and actions on this sheet Follow-up
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Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
Event Description: BLUE ALERT INSTRUMENTATION: Instrumentation readings SHEET D1 are beyond threshold values. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Watch Condition Notification Flowchart”, using pre-scripted message. B. Make careful observation and inspection of every part of the dam related with the instruments’ measurements. C. Monitor water levels and instrument readings for changes or anomalies. D. Record all information, observations, and actions on an Event Log Form (FORM 1). E. Contact the Deputy Chief Engineer/Chief Engineer at least daily to report the latest observations and conditions. F. If instrumentation readings at the dam are determined to indicate a potentially dangerous situation, go to the re-evaluation/decision section and follow relevant steps immediately. Site’s Engineers G. Contact the Quality assurance/monitoring Division to inform the anomalies. H. Closely monitor the instruments’ performance and increase frequency readings to determine negative/ dangerous trends. Deputy Chief Engineer/Chief Engineer I. Review all pertinent information in order to recommend appropriate actions to Emergency Planning Manager. Provide corrective actions or works as required. State Dam Safety Organization J. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS Evaluate conditions CONTINUOUSLY and Determine if: A. The event can be terminated if instrumentation readings back to normal or if instrument reading determined to be invalid. B. The event remains at the current Event Level. C. The event warrants escalation, if instrumentation readings at the dam are determined to indicate a potentially dangerous situation. All contacts on Notification Flow Chart shall be updated of changes. Based on this evaluation, follow the appropriate action A. TERMINATION B. EVENT LEVEL REMAINS THE C. EVENT LEVEL SAME ESCALATION Go to Termination and Follow-up Continue recommended Monitor conditions until actions on this sheet. damage is repaired.
Page 63
Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
Event Description: MALFUNCTIONING OF GATES: Structural member of a gate, either broken or severely BLUE ALERT damaged, which prevent operation of the SHEET E1 gate(s). No leakage or uncontrolled discharge is detected. Flood can be routed without damaged/non-operational gate(s). RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Watch Condition Notification Flowchart”, using pre-scripted message. B. Make careful observation and inspection of every part of spillways, gates etc. C. Monitor water levels in the reservoir and flood forecasting reports continuously. D. Record all information, observations, and actions on an Event Log Form (FORM 1). E. Contact the Deputy Chief Engineer/Chief Engineer at least daily to report the latest observations and conditions. If conditions change significantly, go to re-evaluation/decision section and follow relevant steps immediately. F. If forecasting reports bring about the need to operate the damaged/nonoperational gate(s) go to the re-evaluation /decision section and follow relevant steps immediately. Site’s Engineers G. Contact the Hydro-Mechanical officials for rectifying defects H. Monitor and supervise any remedial action and inform Emergency Planning Manager I. Assure forecast data is transmitted at a higher frequency than normal operations Deputy Chief Engineer/Chief Engineer J. Review the pertinent information in order to recommend appropriate actions to Emergency Planning Manager. Provide corrective actions or works as required. State Dam Safety Organization K. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS Evaluate conditions CONTINUOUSLY and Determine if: A. The event can be terminated if the anomalies has been rectified and the gates back to normal operation B. The event remains at the current Event Level. C. The event warrants escalation to ORANGE alert if the forecast data indicate that it is impossible to handle the flood without the operation of damaged gate All contacts on Notification Flow Chart shall be updated of changes. Based on this evaluation, follow the appropriate action A. TERMINATION B. EVENT LEVEL REMAINS THE C. EVENT LEVEL SAME ESCALATION Go to Termination and Follow-up Continue recommended Go to SHEET E2 actions on this sheet. (ORANGE Alert)
Page 64
Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
Event Description: MALFUNCTIONING OF GATES: Structural member of a gate, either broken or severely ORANGE ALERT damaged, which prevents operation or SHEET E2 malfunction of the gate(s). Considerable leakage or uncontrolled discharge is detected. Flood cannot be routed without damaged/non- operational gate(s). RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flow Chart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Make careful observation and inspection of every part of spillways, gates etc. D. Monitor water levels in the reservoir and flood forecasting reports continuously. E. Record all information, observations, and actions on an Event Log Form (FORM 1). F. Contact the Deputy Chief Engineer/Chief Engineer hourly to report the latest observations and conditions. If conditions change significantly, go to re-evaluation/decision section and follow relevant steps immediately. Site’s Engineers G. Observe conditions in site periodically and provide decision support as appropriate. H. Provide corrective actions or work as required. Deputy Chief Engineer/Chief Engineer I. Study an emergency lowering of the reservoir. State Dam Safety Organization J. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS
Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to BLUE alert if leakage was stopped and but still repair action should be done. B. The event remains at the current Event Level. C. The event warrants escalation to RED alert if the leakage is rapidly increasing through gates or the failure of gate is imminent. Unexpected discharges during non-flood season should be considered as high-risk events where an escalation in the level of alert is necessary. All contacts on Notification Flow Chart shall be updated of changes
Based on this Evaluation, follow the appropriate action
A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS C. EVENT LEVEL THE SAME ESCALATION
Go to SHEET E1(BLUE Alert) Continue recommended Go to SHEET E3 (RED actions on this sheet Alert)
Page 65
Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
Event Description: MALFUNCTIONING OF GATES: Structural member of a gate, either broken or severely RED ALERT SHEET E3 damaged, which prevents operation or malfunction of the gate(s). Unexpected high discharge is occurring. Flood cannot be routed without damaged/non-operational gate(s). RECOMMENDED ACTIONS Emergency Planning Manager
A. Implement the “Failure Condition Notification Flowchart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Recommend to the Districts Collectors and Disaster Management Authorities IMMEDIATE EVACUATION downstream of the dam and affected areas as per Local Evacuation Plan. D. Stay a safe distance away from the dam. The immediate concern is the safety of the downstream public E. Record all information, observations, and actions on an Event Log Form (FORM 1). Site’s Engineers F. Observe conditions from a safe place at dam site periodically and provide decision support as appropriate. Deputy Chief Engineer/Chief Engineer/ State Dam Safety Organization G. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS based upon ANNEX TABLE I Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to ORANGE alert if there is no longer an immediate impending threat of dam failure and water level lowered below the crest level of spillway. B. The event remains at the current Event Level (No change in situation). C. Event may be Terminated only when: - The gate has failed AND there is no longer a threat to the downstream public
All contacts on Notification Flow Chart shall be updated of changes.
Based on this determination, follow the appropriate action A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS THE C. TERMINATION SAME Go to SHEET E2(ORANGE Alert) Continue recommended Go to Termination and actions on this sheet Follow-up
Page 66
Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
Event Description: BLUE ALERT EARTHQUAKE: Measurable earthquake felt or SHEET F1 reported and dam appears to be stable. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Watch Condition Notification Flowchart”, using pre-scripted message. B. Make careful observation and inspection of every part of dam. C. Be prepared for after shocks D. Record all information, observations, and actions on an Event Log Form (FORM 1). E. Contact the Deputy Chief Engineer/Chief Engineer at least daily to report the latest observations and conditions. F. If inspection has determined a potentially dangerous situation, go to the re-evaluation /decision section and follow relevant steps immediately. Site’s Engineers G. Conduct a comprehensive site inspection of the dam and appurtenant elements and make a report on most important finding. H. Monitor and supervise any remedial action and inform Emergency Planning Manager Deputy Chief Engineer/Chief Engineer I. Review the pertinent information in order to recommend appropriate actions to Emergency Planning Manager. Provide corrective actions or works as required. State Dam Safety Organization J. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS Evaluate conditions CONTINUOUSLY and Determine if: A. The event can be terminated if the dam is determined to be stable and a sufficient amount of time has passed. After shocks are not expected. B. The event remains at the current Event Level. C. The event warrants escalation to ORANGE alert if the inspection has determined a potentially dangerous situation All contacts on Notification Flow Chart shall be updated of changes.
Based on this evaluation, follow the appropriate action A. TERMINATION B. EVENT LEVEL REMAINS THE C. EVENT LEVEL SAME ESCALATION Go to Termination and Follow-up Continue recommended Go to SHEET F2 (ORANGE actions on this sheet. Alert)
Page 67
Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
Event Description: EARTHQUAKE: Earthquake resulting in visible ORANGE ALERT SHEET F2 damage to the dam or appurtenances which can cause a potentially dangerous situation
RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flow Chart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Be prepared for after shocks D. Make careful observation and inspection of every part of dam. E. Monitor water levels in the reservoir and development of new damages or movements. F. Record all information, observations, and actions on an Event Log Form (FORM 1). G. Contact the Deputy Chief Engineer/Chief Engineer hourly to report the latest observations and conditions. H. If visible damages aggravate, rapidly go to re-evaluation/decision section and follow relevant steps immediately. Site’s Engineers I. Observe conditions in site periodically and provide decision support as appropriate. J. Conduct a comprehensive site inspection of the dam and appurtenant elements and make a report on most important finding. K. Provide corrective actions or work as required. Deputy Chief Engineer/Chief Engineer L. Study an emergency lowering of the reservoir. State Dam Safety Organization M. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS
Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to BLUE alert if the water level in the reservoir is lowered below the bottom level of the damaged section B. The event remains at the current Event Level. C. The event warrants escalation to RED alert if one or multiple of the conditions have been observed; Uncontrolled release of water over dam/rapidly developing flow through cracks All contacts on Notification Flow Chart shall be updated of changes
Based on this Evaluation, follow the appropriate action
A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS C. EVENT LEVEL THE SAME ESCALATION
Go to SHEET F1(BLUE Alert) Continue recommended Go to SHEET F3 (RED actions on this sheet Alert)
Page 68
Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
Event Description: EARTHQUAKE: Earthquake resulting in RED ALERT uncontrolled release of water over dam or SHEET F3 rapidly developing flow through cracks or rapidly developing erosion through increased seepage RECOMMENDED ACTIONS Emergency Planning Manager
A. Implement the “Failure Condition Notification Flowchart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Recommend to the Districts Collectors and Disaster Management Authorities IMMEDIATE EVACUATION downstream of the dam and affected areas as per Local Evacuation Plan. D. Stay a safe distance away from the dam. The immediate concern is the safety of the downstream public E. Record all information, observations, and actions on an Event Log Form (FORM 1). Site’s Engineers F. Observe conditions from a safe place at dam site periodically and provide decision support as appropriate. Deputy Chief Engineer/Chief Engineer/ State Dam Safety Organization G. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS based upon ANNEX TABLE I Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to ORANGE alert if there is no longer an immediate impending threat of dam failure and water level lowered below the leakage level in the water. B. The event remains at the current Event Level (No change in situation). C. Event may be Terminated only when: - The dam has failed AND there is no longer a threat to the downstream public
All contacts on Notification Flow Chart shall be updated of changes.
Based on this determination, follow the appropriate action A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS THE C. TERMINATION SAME Go to SHEET F2(ORANGE Alert) Continue recommended Go to Termination and actions on this sheet Follow-up
Page 69
Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
Event Description: SECURITY THREAT/SABOTAGE: Unverified BLUE ALERT bomb threat or verified damage to the SHEET G1 dam/appurtenances with no impacts in the functioning of the dam RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Watch Condition Notification Flowchart”, using pre-scripted message. B. Notify Law Enforcement Authorities to help to evaluate the situation. C. Make careful observation and inspection of every part of dam. D. Record all information, observations, and actions on an Event Log Form (FORM 1). E. Contact the Deputy Chief Engineer/Chief Engineer at least daily to report the latest observations and conditions F. If inspection has determined a potentially dangerous situation go to the re-evaluation /decision section and follow relevant steps immediately. Site’s Engineers G. Access the dam only if the area has been cleared by Law Enforcement. H. Observe conditions from a safe place at dam site periodically and provide decision support as appropriate. Deputy Chief Engineer/Chief Engineer I. Review the pertinent information in order to recommend appropriate actions to Emergency Planning Manager. Provide corrective actions or works as required. State Dam Safety Organization J. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS Evaluate conditions CONTINUOUSLY and Determine if: A. The event can be terminated if the dam is determined to be stable and damages have been repaired. Local law enforcement authority has confirmed that there is no threat in the dam structure and surroundings. B. The event remains at the current Event Level. C. The event warrants escalation to ORANGE alert if the inspection has determined a potentially dangerous situation All contacts on Notification Flow Chart shall be updated of changes.
A. TERMINATION B. EVENT LEVEL REMAINS THE C. EVENT LEVEL SAME ESCALATION Go to Termination and Follow-up Continue recommended Go to SHEET G2 actions on this sheet. (ORANGE Alert)
Page 70
Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
Event Description: SECURITY THREAT/SABOTAGE: Verified bomb threat ORANGE ALERT that if carried out, could result in damage of the SHEET G2 dam/appurtenances that impacts the functioning of the dam OR verified damages due to vandalism that impacts the normal operation of the dam. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flow Chart”, using pre-scripted message. B. Notify Law Enforcement Authorities to help to evaluate the situation. C. Identify the areas that would be potentially impacted by the emergency event D. Make careful observation and inspection of every part of dam. E. Record all information, observations, and actions on an Event Log Form (FORM 1). F. Contact the Deputy Chief Engineer/Chief Engineer hourly to report the latest observations and conditions. G. If inspection has determined a potentially dangerous situation go to the re-evaluation /decision section and follow relevant steps immediately Site’s Engineers H. Access the dam only if the area has been cleared by Law Enforcement. I. Conduct a comprehensive site inspection of the dam and appurtenant elements and make a report on most important finding. J. Provide corrective actions or work as required. Deputy Chief Engineer/Chief Engineer K. Study an emergency lowering of the reservoir. State Dam Safety Organization L. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS
Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to BLUE alert if the water level in the reservoir is lowered below the bottom level of the damaged section B. The event remains at the current Event Level. C. The event warrants escalation to RED alert if one or multiple of the conditions have been observed; Uncontrolled release of water over dam/rapidly developing flow through cracks All contacts on Notification Flow Chart shall be updated of changes
Based on this Evaluation, follow the appropriate action
A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS C. EVENT LEVEL THE SAME ESCALATION
Go to SHEET G1(BLUE Alert) Continue recommended Go to SHEET G3 (RED actions on this sheet Alert)
Page 71
Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
Event Description: SECURITY THREAT/SABOTAGE: Detonated RED ALERT bomb resulting in visible damage to the dam or SHEET G3 appurtenances OR verified damages due to vandalism causing an uncontrolled water release RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flowchart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Recommend to the Districts Collectors and Disaster Management Authorities IMMEDIATE EVACUATION downstream of the dam and affected areas as per Local Evacuation Plan. D. Stay a safe distance away from the dam. The immediate concern is the safety of the downstream public E. Record all information, observations, and actions on an Event Log Form (FORM 1). Site’s Engineers H. Observe conditions from a safe place at dam site periodically and inform Emergency Planning Manager Deputy Chief Engineer/Chief Engineer/ State Dam Safety Organization I. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS based upon ANNEX TABLE I Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to ORANGE alert if there is no longer an immediate impending threat of dam failure and water level lowered below to a safe level. B. The event remains at the current Event Level (No change in situation). C. Event may be Terminated only when: - The dam has failed AND there is no longer a threat to the downstream public
All contacts on Notification Flow Chart shall be updated of changes.
Based on this determination, follow the appropriate action A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS THE C. TERMINATION SAME Go to SHEET G2(ORANGE Alert) Continue recommended Go to Termination and actions on this sheet Follow-up
Page 72
Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
Event Description: Potential Embankment Overtopping. Reservoir ORANGE ALERT SHEET H2 water surface elevation 1 m below the top of the dam
RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flow Chart”, using pre-scripted message. B. Identify the area that would be potentially impacted by the emergency events. C. Make careful observations and inspection of every part of dam; this should be done without compromising the safety of any one performing these tasks. Monitor water levels and spillway area for erosion every 15 minutes. D. Record all information, observations and actions on an Event Log Form E. Contact the Superintending/ Chief Engineer hourly to report the latest observations and conditions. If conditions change significantly, go to re-evaluation/decision section and follow relevant steps immediately. Site’s Engineers F. Observe conditions at site periodically and provide decision support as appropriate. G. Provide corrective actions or work as required. Deputy Chief Engineer/Chief Engineer/ State Dam Safety Organization H. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS
Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to BLUE alert if the rainfall has stopped and slowing additional inflow to reservoir. Reservoir level are below MWL. B. The event remains at the current Event Level. C. The event warrants escalation to RED alert the water begins to overtop the embankment All contacts on Notification Flow Chart shall be updated of changes
Based on this Evaluation, follow the appropriate action
A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS C. EVENT LEVEL THE SAME ESCALATION
Go to (BLUE Alert) Continue recommended Go to SHEET H3 (RED actions on this sheet Alert)
Page 73
Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
Event Description: RED ALERT Embankment overtopping. Water from the SHEET H3 reservoir is flowing over the top of the dam RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flowchart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Recommend to the Districts Collectors and Disaster Management Authorities IMMEDIATE EVACUATION downstream of the dam and affected areas as per Local Evacuation Plan. D. Stay a safe distance away from the dam. The immediate concern is the safety of the downstream public E. Record all information, observations, and actions on an Event Log Form (FORM 1). Site’s Engineers F. Observe conditions from a safe place at dam site periodically and inform Emergency Planning Manager Deputy Chief Engineer/Chief Engineer/ State Dam Safety Organization G. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS based upon ANNEX TABLE I Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to ORANGE alert if there is no longer an immediate impending threat of dam failure and water level lowered below to a safe level. B. The event remains at the current Event Level (No change in situation). C. Event may be Terminated only when either: - Spillway flows have been stopped with no additional rainfall occurring - The dam has failed AND there is no longer a threat to the downstream public
All contacts on Notification Flow Chart shall be updated of changes.
Based on this determination, follow the appropriate action A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS THE C. TERMINATION SAME Go to SHEET G2(ORANGE Alert) Continue recommended Go to Termination and actions on this sheet Follow-up
Page 74
Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
Event Description: Seepage: Seepage through dam body. New or BLUE ALERT minor seepage at toe, on slope of SHEET J1 embankment, abutments or galleries, water flowing clear RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Watch Condition Notification Flowchart”, using pre-scripted message. B. Make careful observation and inspection of every part of dam. C. Record all information, observations, and actions on an Event Log Form (FORM 1). D. Contact the Deputy Chief Engineer/Chief Engineer at least daily to report the latest observations and conditions E. If inspection has determined a potentially dangerous situation go to the re-evaluation /decision section and follow relevant steps immediately. Site’s Engineers A. Observe conditions from a safe place at dam site periodically and provide decision support as appropriate. B. Use wooden stakes or flagging to delineate seepage area. Look for upstream whirlpools. Deputy Chief Engineer/Chief Engineer C. Review the pertinent information in order to recommend appropriate actions to Emergency Planning Manager. Provide corrective actions or works as required. State Dam Safety Organization D. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS Evaluate conditions CONTINUOUSLY and Determine if: A. The event can be terminated if the seepage flow has been stopped and found that it is safe to impound water. B. The event remains at the current Event Level. C. The event warrants escalation to ORANGE alert if the inspection has determined a potentially dangerous situation All contacts on Notification Flow Chart shall be updated of changes.
A. TERMINATION B. EVENT LEVEL REMAINS THE C. EVENT LEVEL SAME ESCALATION Go to Termination and Follow-up Continue recommended Go to SHEET J2 actions on this sheet. (ORANGE Alert)
Page 75
Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
Event Description: Seepage: New, seriously or rapidly increasing ORANGE ALERT seepage flow rate at toe, on slope of SHEET J2 embankment, abutments or galleries, water flowing cloudy. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flow Chart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency event. C. Make careful observation and inspection of every part of dam. D. Record all information, observations, and actions on an Event Log Form (FORM 1). E. Contact the Deputy Chief Engineer/Chief Engineer hourly to report the latest observations and conditions. F. Site’s Engineers G. Access the dam only if the area has been cleared by Law Enforcement. H. Conduct a comprehensive site inspection of the dam and appurtenant elements and make a report on most important finding. I. Provide corrective actions or work as required. Deputy Chief Engineer/Chief Engineer J. Study an emergency lowering of the reservoir. State Dam Safety Organization K. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS
Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to BLUE alert if the water level in the reservoir is lowered below the bottom level of the damaged section B. The event remains at the current Event Level. C. The event warrants escalation to RED alert if one or multiple of the conditions have been observed;
All contacts on Notification Flow Chart shall be updated of changes
Based on this Evaluation, follow the appropriate action
A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS C. EVENT LEVEL THE SAME ESCALATION
Go to SHEET J1(BLUE Alert) Continue recommended Go to SHEET J3 (RED actions on this sheet Alert)
Page 76
Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
Event Description: Seepage: Serious seepage at toe, on slope of RED ALERT SHEET J3 embankment, abutments or galleries. Un controllable muddy water flowing. Failure of dam is imminent. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flowchart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Recommend to the Districts Collectors and Disaster Management Authorities IMMEDIATE EVACUATION downstream of the dam and affected areas as per Local Evacuation Plan. D. Stay a safe distance away from the dam. The immediate concern is the safety of the downstream public E. Record all information, observations, and actions on an Event Log Form (FORM 1). Site’s Engineers F. Observe conditions from a safe place at dam site periodically and inform Emergency Planning Manager. G. Construct a large ring dike around the seepage area as appropriate. Deputy Chief Engineer/Chief Engineer/ State Dam Safety Organization H. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS based upon ANNEX TABLE I Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to ORANGE alert if there is no longer an immediate impending threat of dam failure and water level lowered below to a safe level. B. The event remains at the current Event Level (No change in situation). C. Event may be Terminated only when: - The dam has failed AND there is no longer a threat to the downstream public All contacts on Notification Flow Chart shall be updated of changes.
Based on this determination, follow the appropriate action A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS THE C. TERMINATION SAME Go to SHEET J2(ORANGE Alert) Continue recommended Go to Termination and actions on this sheet Follow-up
Page 77
Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
Event Description: BLUE ALERT Sinkholes: Sinkholes anywhere in the SHEET K1 embankment or within 150 m downstream from RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Watch Condition Notification Flowchart”, using pre-scripted message. B. Make careful observation and inspection of every part of dam. C. Monitor Water levels and change in diameter or depth of sinkholes every two hours. Attempt to determine source of sinkholes. D. Record all information, observations, and actions on an Event Log Form (FORM 1). E. Contact the Deputy Chief Engineer/Chief Engineer at least daily to report the latest observations and conditions Site’s Engineers E. Photograph and record the location, size and depth of the depression/sinkhole. Carefully walk the entire embankment and downstream area looking for additional sinkholes, movement or seepage. F. Use wooden stakes or flagging to delineate seepage area. Look for upstream whirlpools. Deputy Chief Engineer/Chief Engineer G. Review the pertinent information in order to recommend appropriate actions to Emergency Planning Manager. Provide corrective actions or works as required. State Dam Safety Organization H. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS Evaluate conditions CONTINUOUSLY and Determine if: A. The event can be terminated if the sinkholes has been repaired and found that it is safe to impound water. B. The event remains at the current Event Level. C. The event warrants escalation to ORANGE alert if the size of sinkhole is increasing progressively All contacts on Notification Flow Chart shall be updated of changes.
A. TERMINATION B. EVENT LEVEL REMAINS THE C. EVENT LEVEL SAME ESCALATION Go to Termination and Follow-up Continue recommended Go to SHEET K2 actions on this sheet. (ORANGE Alert)
Page 78
Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
Event Description: Sinkholes: Sinkholes with seepage or flowing ORANGE ALERT SHEET K2 water anywhere in the embankment or within 150 m downstream of toe.
RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flow Chart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency event. C. Make careful observation and inspection of every part of dam. D. Record all information, observations, and actions on an Event Log Form (FORM 1). E. Monitor water levels and change in diameter or depth of sinkhole every two hours. F. Contact the Deputy Chief Engineer/Chief Engineer hourly to report the latest observations and conditions. G. Site’s Engineers H. Observe conditions in site periodically. I. If conditions permit, plug the flow from upstream side with available material. Place an inverted filter over the exit area to hold soil material in place. J. Provide corrective actions or work as required. Deputy Chief Engineer/Chief Engineer K. Study an emergency lowering of the reservoir. State Dam Safety Organization L. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS
Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to BLUE alert if the water level in the reservoir is lowered below the bottom level of the sinkhole. B. The event remains at the current Event Level. C. The event warrants escalation to RED alert if the sinkhole enlarges or the new sinkholes begins to form.
All contacts on Notification Flow Chart shall be updated of changes
Based on this Evaluation, follow the appropriate action
A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS C. EVENT LEVEL THE SAME ESCALATION
Go to SHEET K1(BLUE Alert) Continue recommended Go to SHEET K3 (RED actions on this sheet Alert)
Page 79
Emergency Action Plan for KUNDALA DAM, MADUPPETTY DAM& RA HEAD WORKS March 2020
Event Description: RED ALERT Sinkholes: Sinkholes rapidly enlarging with SHEET K3 muddy water anywhere in the embankment or within 150m downstream of toe. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flowchart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Recommend to the Districts Collectors and Disaster Management Authorities IMMEDIATE EVACUATION downstream of the dam and affected areas as per Local Evacuation Plan. D. Stay a safe distance away from the dam. The immediate concern is the safety of the downstream public E. Record all information, observations, and actions on an Event Log Form (FORM 1). Site’s Engineers F. Observe conditions from a safe place at dam site periodically and inform Emergency Planning Manager. G. Construct a large ring dike around the seepage area as appropriate. Deputy Chief Engineer/Chief Engineer/ State Dam Safety Organization H. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS based upon ANNEX TABLE I Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to ORANGE alert if there is no longer an immediate impending threat of dam failure and water level lowered below to a safe level. B. The event remains at the current Event Level (No change in situation). C. Event may be Terminated only when: - The dam has failed AND there is no longer a threat to the downstream public All contacts on Notification Flow Chart shall be updated of changes.
Based on this determination, follow the appropriate action A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS THE C. TERMINATION SAME Go to SHEET K2(ORANGE Alert) Continue recommended Go to Termination and actions on this sheet Follow-up
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Event Description: Embankment cracking: Cracks in the BLUE ALERT embankment crest or slopes greater than ½ cm SHEET L1 or ¼ inch wide and considerable length without seepage. RECOMMENDED ACTIONS Emergency Planning Manager F. Implement the “Watch Condition Notification Flowchart”, using pre-scripted message. G. Make careful observation and inspection of every part of dam. H. Monitor Water levels and crack widths for movement or seepage. I. Record all information, observations, and actions on an Event Log Form (FORM 1). J. Contact the Deputy Chief Engineer/Chief Engineer at least daily to report the latest observations and conditions Site’s Engineers I. Photograph and record the location, length, depth and offset of each crack that has been discovered. Stakes should be placed at the end of crack and distance between stakes measured and recorded. Compare observations with earlier results. J. Closely monitor the crack for changes. Deputy Chief Engineer/Chief Engineer K. Review the pertinent information in order to recommend appropriate actions to Emergency Planning Manager. Provide corrective actions or works as required. State Dam Safety Organization L. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS Evaluate conditions CONTINUOUSLY and Determine if: A. The event can be terminated if it is determined that the dam no longer poses an immediate threat to downstream. B. The event remains at the current Event Level. C. The event warrants escalation to ORANGE alert if cracks are enlarging or water begins to flow from cracks. All contacts on Notification Flow Chart shall be updated of changes.
A. TERMINATION B. EVENT LEVEL REMAINS THE C. EVENT LEVEL SAME ESCALATION Go to Termination and Follow-up Continue recommended Go to SHEET L2 actions on this sheet. (ORANGE Alert)
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Event Description: Embankment cracking: Cracks in the ORANGE ALERT embankment crest or slopes greater than ½ cm SHEET L2 or ¼ inch wide and considerable length with active movement/ slippage and seepage through cracks. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flow Chart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency event. C. Make careful observation and inspection of every part of dam. D. Record all information, observations, and actions on an Event Log Form (FORM 1). E. Monitor water levels and development of new cracks or movement hourly. F. Contact the Deputy Chief Engineer/Chief Engineer hourly to report the latest observations and conditions. G. Site’s Engineers H. Observe conditions in site periodically. I. If conditions permit, stabilize slides on the downstream slope by adding weight in the toe area below the slide with additional soil or rock. J. Provide corrective actions or work as required. Deputy Chief Engineer/Chief Engineer K. Study an emergency lowering of the reservoir. State Dam Safety Organization L. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS
Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to BLUE alert if the water level in the reservoir is lowered below the bottom level of the embankment fill. B. The event remains at the current Event Level. C. The event warrants escalation to RED alert if the integrity of the dam appears to be threatened by sudden or rapidly proceeding slides.
All contacts on Notification Flow Chart shall be updated of changes
Based on this Evaluation, follow the appropriate action
A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS C. EVENT LEVEL THE SAME ESCALATION
Go to SHEET L1(BLUE Alert) Continue recommended Go to SHEET L3 (RED actions on this sheet Alert)
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Event Description: Embankment cracking: Sudden or rapidly RED ALERT SHEET L3 proceeding slides of the embankment slopes. Cracks that extends up to the reservoir elevation. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flowchart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Recommend to the Districts Collectors and Disaster Management Authorities IMMEDIATE EVACUATION downstream of the dam and affected areas as per Local Evacuation Plan. D. Stay a safe distance away from the dam. The immediate concern is the safety of the downstream public E. Record all information, observations, and actions on an Event Log Form (FORM 1). Site’s Engineers F. Observe conditions from a safe place at dam site periodically and inform Emergency Planning Manager.
Deputy Chief Engineer/Chief Engineer/ State Dam Safety Organization G. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS based upon ANNEX TABLE I Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to ORANGE alert if the seepage has stopped and water level in the reservoir is lowered below level of seepage. B. The event remains at the current Event Level (No change in situation). C. Event may be Terminated only when: - The dam has failed AND there is no longer a threat to the downstream public All contacts on Notification Flow Chart shall be updated of changes.
Based on this determination, follow the appropriate action A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS THE C. TERMINATION SAME Go to SHEET L2(ORANGE Alert) Continue recommended Go to Termination and actions on this sheet Follow-up
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Annexure 5(Watch Notification Flow Chart)
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WATCH CONDITION NOTIFICATION FLOW CHART (Internal Alert)
OBSERVER OF EVENT RESOURCES
DAM SITE OFFICE
ASSISTANT ENGINEER ASST. EXE. ENGINEER BLUE ALERT HEAVY EQUIPMENT SERVICES Prabeesh Bose George Joy SAND & GRAVEL SUPPLY 9496011964/9400348249 Mob: 9447573449 CRANE SERVICE
M/s CMJ Granites, 1 Mariyapuram Sri Biji, Kattappana
9447510667 98470 32635 EMERGENCY PLANNING TIPPER SERVICE MANAGER
READYMIX CONCRETE 3 Sri Biju, Rajakumari EXECUTIVE ENGINEER 9961866741
CVC Ready Mix EXCAVATOR SERVICE
Thomas Alexander Arror, Ernakulam Mob : 944608421/9400193344 1 Ph: 9847068369 Sri Tinesh, Rajakumari 9544751591 2
HYDRO MECHANICAL ELECTRICAL CONTRACTOR DY. CHIEF ENGINEER CHIEF ENGINEER State DSO CONTRACTOR
Preetha R Supriya S CHIEF ENGINEER Biju Paul Perumalsamy 9446008492 1 9496018719/8078245940 Mob: 9744505257 Mob: 9495588203 Joshy K A EXECUTIVE ENGINEER EXECUTIVE ENGINEER 9447780159 Entire list of Contractor/Supplier can be found in ANNEXURE 8 Joji George Mathew Ganesan 9496018650 9496008964
Suggested Phone Message : - This is [Identify yourself, name, position Note: - An unusual event has been detected at Kundala/ Maduppetty/ R A Head Works], The EAP has been ………. Call sequence priority activated, currently at Blue Alert - The situation is being monitored to determine if any Compulsory Communication evacuation warning will be necessary. We will keep you apprised of the situation Alternative Communication - I can be contacted at the following no. ….. If you cannot reach me, please call the following alternative no ………
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Annexure 6a- Kundala Dam(Failure Notification Flow Chart)
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KUNDALA DAM - FAILURE CONDITION NOTIFICATION FLOW CHART – (External Alert)
RESOURCES OBSERVER OF EVENT EMERGENCY PLANNING RED ALERT HEAVY EQUIPMENT 1 DAM SITE OFFICE MANAGER SERVICES ASSISTANT ENGINEER ASST. EXE. ENGINEER Event Level Escalation based on Action sheet EXECUTIVE ENGINEER CRANE SERVICE Prabeesh Bose George Joy Mob: 9447573449 ORANGE ALERT 9496011964/9400348249 Sri Biji, Kattappana 3 Thomas Alexander 4 Mob : 944608421/9400193344 98470 32635 TIPPER SERVICE 1 2 Sri Biju, Rajakumari DY. CHIEF ENGINEER CHIEF ENGINEER STATE DISASTER IDUKKI DISTRICT MANAGEMENT 9961866741
Preetha R. Supriya S EXCAVATOR SERVICE 8 ANNEXURE in 9446008492 9496018719/8078245940 AUTHORITY Sri Tinesh, EXECUTIVE ENGINEER EXECUTIVE ENGINEER DISTRICT COLLECTOR Dr. Sekhar L. Kuriakose Rajakumari Ph : 0471 - 2331345 9544751591 H DINESHAN IAS ELECTRICAL Joji George Mathew Ganesan 2 Ph: 04862 233101/9447032252 CONTRACTOR 9496018650 9496008964 1
PerumalsamyEntire list of 2 1 DISTRICT POLICE CHIEF 1 Mob: 9495588203 Army/Navy Forces State DSO Central Dam Safety Organization NARAYANAN T IPS 0484 2874789 Ph: 04862 233006 SAND & GRAVEL Pramod Narayan Gulsan Raj 94979 96981 SUPPLY Joshy K A Chief Engineer, CWC, Director, Dam Safety & Chief Engineer New Delhi Rehabilitation,CWC M/s CMJ Granites, FIRE & RESCUE Mariyapuram 9447780159 Ph : 9999277474 Ph : 9958975921 found be can Contractor/Supplier of list Entire Ph: 04868 272300 9447510667 Ph : 011 - 26106848 Ph: 011 - 29583480 Note: Tahsildar – Udumbanchola ………. Call sequence priority READYMIX CONCRETE Suggested Phone Message: (Orange Alert) Ph: 04868 232050/9447023809 Krishnan Unni. - This is [Identify yourself, name, position]. I am making this call-in accordance Tahsildar - Devikulam Compulsory Communication Ph: 04865 264231/9447026414 with Kundala EAP. CVC Ready Mix Ph : 0422-2512242, Mob: Tahsildar - Thodupuzha Alternative Communication Arror, Ernakulam - We have an emergency at Kundala Dam, The EAP has been9482592113 activated, Ph: 048622 222503/8547612801 currently at Orange Alert. We are implementing pre-determined actions to Note: Ph: 9847068369 respond to a rapidly developing situation that could result in dam failure. HYDRO MECHANICAL Health/Hospitals - 04842851234 ………. Call sequence priority The situation is being monitored to determine if any evacuation warnings CONTRACTOR will be necessary. Refer your copy of the EAP to prepare for possible Compulsory Communication Media – 0486 2228688 evacuation
Alternative Communication Biju Paul - I can be contacted at the following no. ….. If you cannot reach me, please Suggested Phone Message: (Red Alert) Mob: 9744505257 call the following alternative no ……… - This is an EMERGENCY. This is [Identify yourself, name, position]. - Kundala Damis failing. The downstream area must be evacuated immediately according to the evacuation map in your copy of EAP. The EAP has been activated, currently at Red Alert. - I can be contacted at the following no. ….. If you cannot reach me, please call the following alternative no ………
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Annexure 6b1 – Maduppetty Dam(Failure Notification Flow Chart – Idukki District)
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MADUPPETTY DAM - FAILURE CONDITION NOTIFICATION FLOW CHART – IDUKKI DISTRICT (External Alert)
RESOURCES OBSERVER OF EVENT EMERGENCY PLANNING RED ALERT HEAVY EQUIPMENT 1 DAM SITE OFFICE MANAGER SERVICES ASSISTANT ENGINEER ASST. EXE. ENGINEER Event Level Escalation based on Action sheet EXECUTIVE ENGINEER CRANE SERVICE Prabeesh Bose George Joy Mob: 9447573449 ORANGE ALERT 9496011964/9400348249 Sri Biji, Kattappana 3 Thomas Alexander 4 98470 32635 Mob : 944608421/9400193344 TIPPER SERVICE 1 2 STATE DISASTER Sri Biju, Rajakumari DY. CHIEF ENGINEER CHIEF ENGINEER IDUKKI DISTRICT MANAGEMENT 9961866741 Preetha R. Supriya S EXCAVATOR SERVICE 8 ANNEXURE in d 9446008492 9496018719/8078245940 AUTHORITY Sri Tinesh, Rajakumari DISTRICT COLLECTOR EXECUTIVE ENGINEER EXECUTIVE ENGINEER Dr.Sekhar L. Kuriakose 9544751591 Ph : 0471 - 2331345 H DINESHAN IAS ELECTRICAL Joji George Mathew Ganesan 2 Ph: 04862 233101/9447032252 CONTRACTOR 9496018650 9496008964 1 PerumalsamyEntire list of DISTRICT POLICE CHIEF 2 1 1 Army/Navy Forces Mob: 9495588203
State DSO Central Dam Safety Organization NARAYANAN T IPS 0484 2874789 Ph: 04862 233006 SAND & GRAVEL Pramod Narayan Gulsan Raj 94979 96981 SUPPLY Joshy K A Chief Engineer, CWC, Director, Dam Safety & New Delhi M/s CMJ Granites, Chief Engineer Rehabilitation,CWC FIRE & RESCUE Ph : 9999277474 Mariyapuram 9447780159 Ph : 9958975921 Ph: 04868 272300 foun be can Contractor/Supplier of list Entire Ph : 011 - 26106848 9447510667 Ph: 011 - 29583480 Note: Tahsildar – Udumbanchola ………. Call sequence priority READYMIX CONCRETE Suggested Phone Message: (Orange Alert) Ph: 04868 232050/9447023809 - This is [Identify yourself, name, position]. I am making thisKrishnan call-in accordance Unni. Tahsildar - Devikulam Compulsory Communication with Maduppetty EAP. Ph: 04865 264231/9447026414 CVC Ready Mix Ph : 0422-2512242, Mob: Tahsildar - Thodupuzha Alternative Communication Arror, Ernakulam - We have an emergency at Maduppetty Dam, The EAP has been activated, 9482592113 Ph: 048622 222503/8547612801 Note: currently at Orange Alert. We are implementing pre-determined actions to Ph: 9847068369 ………. Call sequence priority HYDRO MECHANICAL respond to a rapidly developing situation that could result in dam failure. Health/Hospitals - 04842851234 The situation is being monitored to determine if any evacuation warnings CONTRACTOR Compulsory Communication will be necessary. Refer your copy of the EAP to prepare for possible Media – 0486 2228688 evacuation Suggested Phone Message: (Red Alert) Alternative Communication Biju Paul - I can be contacted at the following no. ….. If you cannot reach me, please - This is an EMERGENCY. This is [Identify yourself, name, position]. Mob: 9744505257 call the following alternative no ……… - Maduppetty Damis failing. The downstream area must be evacuated immediately according to the evacuation map in your copy of EAP. The EAP has been activated, currently at Red Alert.
- I can be contacted at the following no. ….. If you cannot reach me, please call the following alternative no ………
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Annexure 6b2 – Maduppetty Dam (Failure Notification Flow Chart – Ernakulam District)
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MADUPPETTY DAM - FAILURE CONDITION NOTIFICATION FLOW CHART – ERNAKULAM DISTRICT (External Alert)
RESOURCES OBSERVER OF EVENT EMERGENCY PLANNING RED ALERT HEAVY EQUIPMENT DAM SITE OFFICE 1 MANAGER SERVICES ASSISTANT ENGINEER ASST. EXE. ENGINEER Event Level Escalation based on Action sheet EXECUTIVE ENGINEER CRANE SERVICE Prabeesh Bose George Joy ORANGE ALERT Sri Biji, Kattappana 9496011964/9400348249 Mob: 9447573449 Thomas Alexander 4 98470 32635 Mob : 944608421/9400193344
3 TIPPER SERVICE 2 Sri Biju, Rajakumari DY. CHIEF ENGINEER CHIEF ENGINEER STATE DISASTER ERNAKULAM DISTRICT MANAGEMENT 9961866741 Supriya S Preetha R. AUTHORITY EXCAVATOR SERVICE 9446008492 9496018719/8078245940
Sri Tinesh, 8 ANNEXURE in DISTRICT COLLECTOR Dr. Sekhar L. Kuriakose EXECUTIVE ENGINEER EXECUTIVE ENGINEER Rajakumari Ph : 0471 - 2331345 9544751591 Joji George Mathew Ganesan SUHAS S IAS ELECTRICAL Ph: 0484 2423001 2 9496018650 9496008964 1 CONTRACTOR DISTRICT POLICE CHIEF Perumalsamy 2 Army/Navy Forces 1 1 Mob: 9495588203 0484 2874789 State DSO Central Dam Safety Organization K KARTHICK IPS Ph: 0484 2353516 SAND & GRAVEL Gulsan Raj Pramod Narayan SUPPLY Director, Dam Safety & Joshy K A Chief Engineer, CWC, FIRE & RESCUE M/s CMJ Granites, Chief Engineer New Delhi Rehabilitation,CWC Ph: 0484 23555101 Mariyapuram 9447780159 Ph : 9999277474 Ph : 9958975921 9447510667 Ph : 011 - 26106848 Note: Ph: 011 - 29583480 Tahsildar – Kothamangalam
………. Call sequence priority READYMIX found be can Contractor/Supplier of list Entire Ph: 0485 2822298 CONCRETE Suggested Phone Message: (Orange Alert) Tahsildar – Kunnathunad Compulsory Communication Krishnan Unni. CVC Ready Mix Ph: 0484 2522224 - This is [Identify yourself, name, position]. I am making this call-in Alternative Communication Arror, Ernakulam Ph : 0422-2512242, Mob: accordance with Maduppetty EAP. Note: Ph: 9847068369 9482592113 Health/Hospitals - 04842851234 - We have an emergency at Maduppetty Dam, The EAP has been activated, ………. Call sequence priority HYDRO MECHANICAL currently at Orange Alert. We are implementing pre-determined actions to CONTRACTOR Media – 0484 2353152 respond to a rapidly developing situation that could result in dam failure. Compulsory Communication The situation is being monitored to determine if any evacuation warnings Suggested Phone Message : (Red Alert) Biju Paul will be necessary. Refer your copy of the EAP to prepare for possible Alternative Communication evacuation - This is an EMERGENCY. This is [Identify yourself, name, position]. Mob: 9744505257 - Maduppetty Dam is failing. The downstream area must be evacuated immediately according to the - I can be contacted at the following no. ….. If you cannot reach me, please evacuation map in your copy of EAP. The EAP has been activated, currently at Red Alert. call the following alternative no ……… - I can be contacted at the following no. ….. If you cannot reach me, please call the following alternative no ………
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Annexure 6c – R A Head Works (Failure Notification Flow Chart)
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R A HEAD WORKS - FAILURE CONDITION NOTIFICATION FLOW CHART (External Alert)
RESOURCES OBSERVER OF EVENT EMERGENCY PLANNING RED ALERT HEAVY EQUIPMENT 1 DAM SITE OFFICE MANAGER SERVICES ASSISTANT ENGINEER ASST. EXE. ENGINEER Event Level Escalation based on Action sheet EXECUTIVE ENGINEER CRANE SERVICE Prabeesh Bose George Joy Mob: 9447573449 ORANGE ALERT 9496011964/9400348249 Sri Biji, Kattappana 3 Thomas Alexander 4 98470 32635 Mob : 944608421/9400193344 TIPPER SERVICE 1 2 STATE DISASTER Sri Biju, Rajakumari DY. CHIEF ENGINEER CHIEF ENGINEER IDUKKI DISTRICT MANAGEMENT 9961866741 Preetha R. Supriya S 8 ANNEXURE in EXCAVATOR SERVICE 9446008492 9496018719/8078245940 AUTHORITY Sri Tinesh, Rajakumari DISTRICT COLLECTOR EXECUTIVE ENGINEER EXECUTIVE ENGINEER Dr.Sekhar L. Kuriakose 9544751591 Ph : 0471 - 2331345 H DINESHAN IAS ELECTRICAL Joji George Mathew SreeLatha 2 Ph: 04862 233101/9447032252 CONTRACTOR 9496018650 9496008964 1 PerumalsamyEntire list of DISTRICT POLICE CHIEF 2 1 1 Army/Navy Forces Mob: 9495588203
State DSO Central Dam Safety Organization NARAYANAN T IPS 0484 2874789 Ph: 04862 233006 SAND & GRAVEL Pramod Narayan Gulsan Raj 94979 96981 SUPPLY Joshy K A Chief Engineer, CWC, Director, Dam Safety & New Delhi M/s CMJ Granites, Chief Engineer Rehabilitation,CWC FIRE & RESCUE Ph : 9999277474 Mariyapuram 9447780159 Ph : 9958975921 Ph: 04868 272300 found be can Contractor/Supplier of list Entire Ph : 011 - 26106848 9447510667 Ph: 011 - 29583480 Note: Tahsildar – Udumbanchola ………. Call sequence priority READYMIX CONCRETE Suggested Phone Message: (Orange Alert) Ph: 04868 232050/9447023809 - This is [Identify yourself, name, position]. I am making thisKrishnan call-in accordance Unni. Tahsildar - Devikulam Compulsory Communication with R A Head Works EAP. Ph: 04865 264231/9447026414 CVC Ready Mix Tahsildar - Thodupuzha Ph : 0422-2512242, Mob: Alternative Communication Arror, Ernakulam - We have an emergency at R A Head Works, The EAP has been activated, Ph: 048622 222503/8547612801 9482592113 Note: currently at Orange Alert. We are implementing pre-determined actions to Ph: 9847068369 HYDRO MECHANICAL respond to a rapidly developing situation that could result in dam failure. Health/Hospitals - 04842851234 ………. Call sequence priority The situation is being monitored to determine if any evacuation warnings CONTRACTOR Compulsory Communication will be necessary. Refer your copy of the EAP to prepare for possible Media – 0486 2228688 evacuation Suggested Phone Message: (Red Alert) Alternative Communication Biju Paul - I can be contacted at the following no. ….. If you cannot reach me, please - This is an EMERGENCY. This is [Identify yourself, name, position]. Mob: 9744505257 call the following alternative no ……… - R A Head Works is failing. The downstream area must be evacuated immediately according to the evacuation map in your copy of EAP. The EAP has been activated, currently at Red Alert.
- I can be contacted at the following no. ….. If you cannot reach me, please call the following alternative no ………
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Annexure 7(Sample Public Announcements)
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Sample Public Announcements
Note: These messages are communicated to downstream residents to alert the public of impending danger.The Emergency Planning Manager should coordinate with the India Meteorological Department, the District Disaster Management Authority, and the District Collectors (Table 6.2.1) prior to release. Messages can be communicated via radio, television, bulk SMSs of local mobile networks, and other media outlets.
Announcement for a Slowly Developing “Watch” Condition (BLUE Emergency Level)
Kerala State Electricity Board Ltd. has declared a BLUE Level ―Watch condition for Kundala/Maduppetty/R A Head Works, as of [time and date]. [Briefly describe the problem or condition.] Although there is no immediate danger of the dam failing, [Describe what actions are being taken to monitor and control the situation.] [State the quantity of any releases from the reservoir.]
Announcement for a Worsening “Watch” Condition (BLUE Emergency Level)
Kerala State Electricity Board Ltd. has declared a BLUE Level ―Watch condition for Kundala/Maduppetty/R A Head Works, as of [time and date].[Briefly describe the problem or condition.] Although there is no immediate danger of the dam failing a possibility now exists that the dam will fail [or describe any other consequence]if correction efforts are unsuccessful.[Describe what actions are being taken to monitor and correct the situation.] [State the quantity of any releases from the reservoir]. Additional news will be made available as soon as it is received.
Announcement for a Probable “Failure” Condition (ORANGE Emergency Level)
Urgent! This is an emergency message. Kerala State Electricity Board Ltd. has announced that Kundala/Maduppetty/R A Head Works, is probably going to fail [or describe any other consequence][Describe what actions are being taken to monitor and control the situation.]It is possible that the dam will fail in [##] hours. Residents in low lying areas along the downstream reaches of Mudirappuzha River and banks of Periyar, as well as the town of [Or Indicate the specific towns/villages to be evacuated according to the expected scenario], should prepare for immediate evacuation. Additional news will be made available as soon as it is received.
Announcement of an Impending “Failure” Condition (RED Emergency Level)
Emergency! This is an emergency message. Kundala/Maduppetty/R A Head Works, is going to fail at any moment [or describe any other consequence]. Residents who have not yet done so should immediately evacuate the towns of Pooppara and low-lying areas along the Mudirappuzha River and banks of Periyar[OrIndicate the specific towns/villages to be evacuated according to the expected scenario]. The flood waters have already reached [Highway] and [Road]. Additional news will be made available as soon as it is received.
Announcement of an Ongoing “Failure” Condition (RED Emergency Level)
Emergency! This is an emergency message. Kundala/Maduppetty/R A Head Works, failed [or describe any other consequence]at[time and date].Residents who have not yet done so should immediately evacuate the towns of …………………….and low-lying areas along the Mudirappuzha River and banks of Periyar[Or Indicate the specific towns/villages to be evacuated according to the expected scenario]. The flood waters have already reached [Highway] and [Road]. Additional news will be made available as soon as it is received.
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Annexure 8(Supplies and Resources)
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Supplies and Resources
The following equipment and supplies may be necessary for use during a dam emergency. Contact information for local/national contractors who can provide the following items during an emergency is listed below. For supplies owned by the dam owner, the dam owner‘s name and the specific location of the supplies have been denoted.
Contractor Type Name, Title, Phone Remarks Civil Works Contact Name: Services: Ready Mix Concrete, Company Name: Uralungal Labour Sand bags, Earthwork Contract Co-operative Society Mobilization / Response Time: Office Ph: +914962514042 Moderate: Website: Email: [email protected] Company Name: M/s CMJ Granites, Services: Sand bags, Earthwork, Mariyapuram. Gravel supply. Mobile : 9447510667 Mobilization / Response Time: Moderate:
Company Name: CVC Ready Mix Services: Ready Mix Concrete. Aroor, Ernakulam Mobilization / Response Time: Ph: 9847068369 Moderate:
Electro/Mechanical Works Contact Name: CHANDRABOSE J Services: Mechanical works Company Name: Steel Industrials Mobilization / Response Time: Kerala Limited Moderate Office Ph: 91-484-2358874 Email: [email protected] Contact Name: Services: Mechanical works Company Name: Asianic Engineering Mobilization / Response Time: Corporation Moderate Office Ph: 91-484-2358874
Contact Name: JOSEPH Services: Mechanical works Company Name: Electro Track Mobilization / Response Time: Office Ph: 0484-2395904 Moderate Website:
Email: Contact Name: Services: Electrical contractor Electrical Works Company Name: SL ELECTRICALS Mobilization / Response Time: Mobile Ph: +91 9447018631 Moderate Website: Email: [email protected]
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Contact Name: Mr.Murali Nair Services: Electrical contractor Company Name: E&C Controls 'A' Mobilization / Response Time: Grade Licensed Electrical Immediate Contractors Office Ph: 094471 15702 Website: Email: Contact Name: Services: Electrical contractor Company Name: K.V. Mathew & Mobilization / Response Time: Sons Electrical Contractors Moderate Office Ph: 9447672277 Website: Email: Contact Name: Perumalsamy Services : Electrical contractor Mob: 9495588203 Mobilization / Response Time: High
Contact Name: Services: Meteorological Instrumentation Company Name: Environmental Instrumentation measurements and control (supplier and service) Office Ph: +91-9447797793 Mobilization / Response Time: Website: emconindia.com moderate Email: info@emconindia Contact Name: Services: Structural Company Name: Tyrannus Instrumentation Innovative Engineering And (supplier and service) Research Academy Pvt Ltd. Mobilization / Response Time: Office Ph: +91 9495838831 moderate Website: www.tieraonline.com Pre-Agreement: NO Email:[email protected] Contact Name: Services: Geotechnical Company Name: SysTel Instrumentation Instrumentation Services Pvt. Ltd. (supplier and service) Mobile Ph: +91 8127369742 Mobilization / Response Time: Office ph.:+91 0522 495 3344 Low (Uttar Web-Site: www.sisplgroup.com Pradesh) Pre-Agreement: NO Contact Name: Services: Diving & ROV Special Works/ Equipment Company Name: Neel underwater Services, underwater services inspections Office Ph: +91 9447295958 Mobilization / Response Time: Website: Low Email: Pre-Agreement: NO Contact Name: Services: Diving & ROV Company Name: Frogman Services, underwater underwater services Inspections, welding Office Ph: 91 9965789230 Mobilization / Response Time:
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Website: Low Email: Pre-Agreement: NO [email protected] Contact Name: Dinesh K. Yadav Services: Prevention, Detection Company Name: Asha underwater andRepair/arrest of leakage in Services Pvt. Ltd. sluice, service gate. Mobile Ph. 1: +91-9820554228 Spot Dredging and Trash Office Ph. 1: +91-251-2232598 removal from forebays, Office Ph. 2: +91-251-2231712 intakes. Underwater Web-Site: inspections. http://ashaunderwater.com/ Mobilization / Response Time: Moderate (Andhra Pradesh)
Contact Name: Services: Geotechnical/ Consultants Company Name: College of Structural/ (Hydraulic,Geotechnical, Engineering Trivandrum. Hydraulic/Hydrology Mechanical,Structural) Office Ph: +914712515572 consultancy. Website: cet.ac.in Academic Institution Email: [email protected] Mobilization/Response Time: Moderate
Company Name: Central Water & Mobilization / Response Time: Power Research Station (CWPRS), Low (Pune) Pune. Mobile Ph. 1:+91(20)24103200 Mobile Ph. 2:+91(20) 24380511 Office Ph.1: +91(20) 24380825 Contact Name: Services: Geotechnical Company Name: Central Soil And Mobilization/Response Time: Materials Research Station (CSMRS) Low (Delhi) Office Ph. 1:+91-11-26967985 Office Ph. 2: :+91-11- 26961894 Contact Name: Babu Kuriyakoze Rental Services for Bulldozers, Heavy Equipment Company Name: crane, Dump Trucks. (Cranes, Bulldozers etc.) Mobile Ph: 9447159501 Mobilization / Response Time: Website: Immediate. Email:
Contact Name: Nias P V Rental Services for Backhoes, Company Name: Dump trucks, Portable welding Mobile Ph: 9747224353 equipment, Generators, Website: Bulldozers, Excavators, Loaders Email: Motor graders Mobilization / Response Time: Immediate
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Contact Name: Rent Backhoes, Dump trucks Company Name: Abbreva Heavy Portable welding equipment Equipments. Generators, Bulldozers, Mobile Ph: 9152192017 Excavators, Loaders, Website: www.abbrevagroup.com Motor graders. Email: Mobilization / Response Time: Moderate
Contact Name:Sri Biji, Kattappana Rental services for Crane Mobile Ph: 98470 32635 Mobilization / Response Time: High
Contact Name:Sri Biju, Rajakumari Rental services for Tippers Mobile Ph: 9961866741 Mobilization / Response Time: High
Contact Name:Sri Tinesh, Rental services for Excavator Rajakumari Mobilization / Response Time: Mobile Ph: 9544751591 High
Contact Name: Paul Thampy Services: Wireless and Radio Communications Company Name: ZAK Security Communication (Warning Systems, CCTV, Solutions Equipment. Voice and Data IT, Wireless Mobile Ph: +91 903 701 8246 Communication. Communications) Website: Early Warning Systems Email: (Supplier) Response Time / [email protected] Mobilization: Low
Contact Name: RanvirSoni Services: Wireless and Radio Company Name: Meatech Solutions Communication Pvt. Ltd. Equipment. Automatic Mobile Ph. 1:+91- 9810955787 Weather Stations. Mobile Ph. 2: +91 9831073081 Disaster Warning Systems. Web-Site: Topographical http://www.meatechsolutions.com Survey Mobilization / Response Time: Moderate (Kolkata and Delhi)
Contact Name: Biju Paul Services : Operation and Hydro Mechanical Mob: 9744505257 Maintenance of Gates. Contractor Mobilization / Response Time: High
Note : No pre agreement is executed with Contractors/Consultants
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Annexure 9a1 –Kundala Dam(Inundation cum Evacuation Map)
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Annexure 9a2 –Maduppetty Dam(Inundation cum Evacuation Map)
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Annexure 9a3 – R A Head Works (Inundation cum Evacuation Map)
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Annexure 9b1 – Kundala Dam(Flood Hazard Reference Values and Local Evacuation Plan)
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FLOOD HAZARD REFERENCE VALUES AND LOCAL EVACUATION PLAN – KUNDALA DAM Evacuation Name of Flood reference Values Estimated Nearby Shelters/relief Camps Responsible for Tile ID No. in Priority Panchayat/ Flood Depth Velocity Water identified Evacuation Inundation cum Municipality arrival (m) (m/s) Surface Evacuation Plan Time Elevation (m) (Annexure -9 a) (Hrs.)
1 Devikulam 0-2 10-18 2-15 1450-1760 High Range School, Maduppetty 1/6, 2/6, 3/6 Carmelarigiri M I Public School, Munnar 2 Munnar 1.5-2 1-8 0.5-3 1380-1460 College of Engg., Munnar 3/6 Dare School,Munnar Govt. HSS, Devikolam Govt. UPS, Devikolam 3 Bison Valley 2-2.5 1-4 1-3 670-1400 Surabhi Public School, kunjithanni 3/6, 4/6, 5/6 Holy Family School, Kunjithanni St. Sebastian High School, Pottenkadu District police Chief, Idukki 4 Vellathooval 2-4 1-4 0.3-2 455-775 Govt. H S , Vellathooval 5/6, 6/6 Govt. High School, Thokkupara St. Sebastians School, Thokkupara 5 Rajakkad 1.5-2.5 2-4 0.1-1.5 560-700 St. Mary's U P School,Kollimala 5/6
6 Konnathadi 2-4 3-4 0.5-2 455-600 St. Mary's U P School,Kollimala 5/6, 6/6 Govt. H S , Vellathooval
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Annexure 9b2 – Maduppetty Dam (Flood Hazard Reference Values and Local Evacuation Plan)
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FLOOD HAZARD REFERENCE VALUES AND LOCAL EVACUATION PLAN – MADUPPETTY DAM Evacuation Name of Flood reference Values Estimated Nearby Shelters/relief Camps Responsible for Tile ID No. in Priority Panchayat/ Flood Depth Velocity Water identified Evacuation Inundation cum Municipality arrival (m) (m/s) Surface Evacuation Plan Time Elevation (m) (Annexure -9 a) (Hrs.)
1 Devikulam 0-2 10-18 2-15 1450-1760 High Range School, Maduppetty 1/6 Carmelarigiri M I Public School, Munnar 2 Munnar 1.5-2 1-8 0.5-3 1380-1460 College of Engg., Munnar 1/6 Dare School,Munnar Govt. HSS, Devikolam Govt. UPS, Devikolam 3 Bison Valley 2-2.5 1-4 1-3 670-1400 Surabhi Public School, kunjithanni 2/6 Holy Family School, Kunjithanni St. Sebastian High School, Pottenkadu 4 Rajakkad 1.5-2.5 2-4 0.1-1.5 560-700 St. Mary's U P School,Kollimala 2/6
5 Konnathadi 2-4 10-30 5-10 280 – 600 St. Mary's U P School, Kollimala District Police Chief, Idukki 2/6 St. Mary's HS Konnathadi, GLPS Konnathadi, GHS Mukkadam 6 Vellathooval 2-4 10-37 5-10 225-775 GHSS Vellathooval, 2/6,3/6 GHS, Kallarkutty Govt. High School, Thokkupara St. Sebastians School, Thokkupara 7 Kanjikuzhy 0-1 10-37 3-7 70-285 St. Joseph UPS, Panamkutty, 2/6,3/6 GLPS, Pattayakudi 8 Adimali 0.5-2 10-30 1-8 59-220 Eastern Newton Public School, Adimali 3/6,4/6
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9 Kavalangad 1-6 7-13 1-4 55-70 GUPS Thalakkode, 3/6,4/6,5/6,6/6 GUPS Paimattom, High Range Public School, Oonnukal, Little Flower School, Oonnukal. 10 Kuttampuzha 2-6 6-12 1-4 35-60 Vimala Public School, Kuttampuzha, 3/6,4/6,5/6,6/6 GHSS, Thattekkad 11 Keerampara 5-10 3-8 0.5-2 30-50 Vimalagiri Public School, 4/6,5/6,6/6 Kothamangalam, District Police Chief, Idukki 12 Pindimana 10-12 3-8 05.-1.5 37-50 M A International School, 4/6,5/6,6/6 Kothamangalam 13 Vengoor 10-12 2-7 05.-1.5 29-38 6/6 M A College, Kothamangalam 14 Ayyampuzha 10-12 5-7 0.5-1.5 29-38 6/6
15 Kothamangalam 18-24 0-1 0-0.5 32-34 5/6,6/6
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Annexure 9b3 – R A Head Works(Flood Hazard Reference Values and Local Evacuation Plan)
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FLOOD HAZARD REFERENCE VALUES AND LOCAL EVACUATION PLAN – R A Head Works Evacuation Name of Flood reference Values Estimated Nearby Shelters/relief Camps Responsible for Tile ID No. in Priority Panchayat/ Flood Depth Velocity Water identified Evacuation Inundation cum Municipality arrival (m) (m/s) Surface Evacuation Plan Time Elevation (m) (Annexure -9 a) (Hrs.)
1 Devikulam 0-2 6-8 6-10 1400-1450 High Range School, Maduppetty 1/3 Carmelarigiri M I Public School, Munnar 2 Munnar 0-0.2 6-8 6-10 1400-1450 College of Engg., Munnar 1/3 Dare School,Munnar Govt. HSS, Devikolam Govt. UPS, Devikolam 3 Bison Valley 0-0.7 6-8 2-10 780-1400 Surabhi Public School, kunjithanni 1/3,2/3 Holy Family School, Kunjithanni St. Sebastian High School, Pottenkadu District police Chief, Idukki 4 Vellathooval 0.5-1.2 6-8 2-9 460-780 Govt. H S , Vellathooval 2/3,3/3 Govt. High School, Thokkupara St. Sebastians School, Thokkupara 5 Rajakkad 0.7-1 6-8 2-10 570-670 St. Mary's U P School,Kollimala 2/3
6 Konnathadi 0.9-1.2 6-8 2-6 460-570 St. Mary's U P School,Kollimala 2/3,3/3 Govt. H S , Vellathooval
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Annexure 10(Annual EAP Evaluation Checklist)
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Annual EAP Evaluation Checklist
Evaluation Year: Evaluation done by :
Was the annual dam inspection □ Yes If yes, has the EAP been □ Yes conducted? □ No revised to include any signs of □ No failures observed during the inspection?
as weed clearing, animal burrow □ Yes If yes, describe actions taken and date: removal, or other maintenance □ No required?
Was the outlet gate operable? □ Yes If no, describe actions taken and date: □ No
Does the Notification Flowcharts □ Yes If yes, list the dates of the contact require revision? □ No information revision and redistribution: (Note that revision of the contact information will not require EAP approval; however, the revised contact information pages will need to be redistributed as replacement pages.)
Was annual training or a tabletop □ Yes If yes, specify : □ Training □ Drill drill conducted? □ No Date conducted:
Are inspection and training □ Yes records included in the EAP? □ No
Was the EAP reviewed? □ Yes If yes, review date: □ No
Were changes required to the □ Yes If yes, date of revised EAP approval: EAP? □ No
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Annexure 11(Plan Review and Update)
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Plan Review and Update
This plan will be reviewed and updated annually and table-top drills will be carried out at least once every five years. Document these reviews below.
Date of review: Participants:
Date of review: Participants:
Date of review: Participants:
Date of review: Participants:
Date of table top drill: Participants:
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Annexure 12(Training Record)
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Training Record
Use this form to record training sessions. All items in the EAP should be thoroughly reviewed during training. Appropriate KSEBL employees and EAP responsible should attend a training session annually (or participate in a simulated drill).
TRAINING LOCATION:
DATE: TIME: INSTRUCTOR:
CLASS SIGN-IN:
Type of simulation conducted: Specific emergency type
Emergency water release
Watch conditions
Possible dam failure
Imminent dam failure
Actual dam failure
Comments, Results of Drill:
Revisions Needed to EAP Based on Results of Drill
(Yes / No ). If yes, list revisions required:
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Annexure 13(Stakeholders’ Meeting)
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Minutes of Stakeholders’ meeting held on 19.09.2019 at Conference hall, Collectorate, Ernakulam
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Minutes of Stakeholders’ meeting held on 20.09.2019 at Conference hall, Collectorate, Idukki.
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