Post on 16-Oct-2021
transcript
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Presentation for
Stakeholders Consultation Meeting for
KRISHNA BHAGYA JALA NIGAM LTD(A Government of Karnataka Undertaking)
FINALIZATION OF EMERGENCY ACTION PLAN FOR ALMATTI DAM (KA06HH0200)
Date: 11.12.2020
1. About Upper Krishna Project
• Upper Krishna Project is a lifeline for drought
prone areas of Vijayapura, Bagalkot, Raichur,
Kalburgi, Yadgiri, Gadag and Koppal districts in
northern Karnataka.
• The project has 2 major dams of ‘National
Importance’ near Almatti and Narayanapur to
facilitate the irrigation, power generation, drinking
water supply.
• The command area of the project is as follows;
Particulars Stage
I
Stage
II
Stage
III*
Total
Irrigable
Command
area (Ha)
4,24,903 1,97,120 5,94,052 12,16,075
* contemplated
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FRL for UKP Stage-II 519.60 m
FRL for UKP Stage-III 524.256 m
Total length of Dam 1564.83 m
Earthen dam portion (left flank) 402.00 m
Spillway portion 486.50 m
Non-Spillway portion 676.33 m
Maximum height of Dam above
lowest foundation level49.29 m
Top width of Dam 7.50 m (10 m in power dam)
Peak Flood 31007 Cumecs
Revised Peak Flood47,318 Cumecs (as per CWC letter dt: 23.11.2015)
Considered for preparation of Inundation maps
Catchment Area 35,925 Sq.km
Live Storage 105.46 TMC
Dead Storage 17.62 TMC
Gross Storage at 519.60 m 123.08 TMC
Gross Storage at 524.256 m 223 TMC
Crest Gate Details 26 nos. (15 m x10.584 with 15.24 m height at ends)
2. Almatti dam features
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2005 Data
• Max inflow : 4.75 Lakh Cusec and Max outflow : 4.45 Lakh Cusec.
2019 data:
• Max. inflow (12th Aug-2019, 10.00 pm – 11.00 pm): 6.95 Lakh Cusec, Water
Level - 518.44 m @ 10.00 pm and 518.47 m @ 11.00 pm.
• At this reservoir level and rate of inflow, in case all gates in closed position, the
reservoir would have crossed the FRL of 519.6 m in just 7 hours and Max
outflow ( Aug-2019): 5.70 Lakh Cusec.
3. Historical Floods
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4. Flood Management in 2019
• Inflow Assessment
• Gates operation considering the
discharges.
• Informed upstream/down stream
project authorities
• Coordination with the district
administration.
• Flood alerts, warnings and
“Danguras”.
• Possibility of the power supply
arrangements to dam getting
inundated.
• Auxiliary power supply arrangements
were made to operate the dam.
5. Emergency Action Plan
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Formal written plan and site specific.
Procedures and processes to be followed in the event of an
emergency.
The emergency may be caused due to failure of essential
dam components.
The consequences would be socio-economic losses and
damage to infrastructure.
The soft copy of the Emergency Action
Plan has been uploaded in the WRD
website on 11.02.2020 and the hard
copy of the document has been
circulated to all the Stakeholders.
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• It’s a plan to prevent the effects.
• It facilitates recognition of dam safety problems.
• EAP intended to coordination with local, District
and State agencies to ensure response action.
• The EAPs are required to outline “who does
what, where, when and how” in an emergency
situation.
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6. Development of EAP
• An emergency may includes
Dam incident, Dam alert and
Dam breach.
• Identification of all jurisdictions,
agencies and individuals.
• Identify primary and auxiliary
communication systems.
• Identify all persons and
agencies involved in the
notification process.
• Develop a draft of the EAP
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7. Objectives of Consultation Meeting
Its mandatory to prepare EAP for all dams
in India.
It is important to incorporate the
suggestions / comments on the EAP for
finalization. Hence, this meeting is
organized.
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9. Summary of possible affected villages
Sl.n
oDistrict Taluk Villages
Estimated
Population
Potential
loss of life
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Bagalkot
Bagalkot 15 17228 1703
2 Hunagund 44 47122 8
3 Mudhol 1 155 0
4 Guledagudda 3 648 0
5 Ilakal 3 5153 0
Sub-Total 66 70306 1711
6Vijayapura
Nidagundi 8 18377 1570
7 Muddebihal 24 15620 88
Sub-Total 32 33997 1658
8 Raichuur Lingasugur 1 1101 0
Sub-Total 1 1101 0
Total 99 1,05,404 3369
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10. Emergency Evaluation and Classification
a. Internal Alert Condition-BLUE
Cloudy or dirty seepage or seepage with an increase in flow.
Large sinkholes in the embankment or d/s from the toe.
Cracking or movement in concrete or welds.
Exceptionally heavy rainfall in the catchment of the Dam
reservoir.
Shearing of the Bolts in critical components.
Deformations in the Web plate connecting lifting connections
to Hydraulic Hoists.
Profuse leakages in Hydraulic Hoists (Hoses).
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b. External alert Condition-ORANGE
Increase in flowing muddy water.
Slides involving a large mass of material that impairs the
crest of the Dam.
Sinkholes with seepage flowing muddy water.
Large cracks, movement or failure of a portion of any major
concrete structures.
An increase in the reservoir level to near the top of the Dam.
Overtopping of a Dam
Near to ‘Design Flood’ inflow forecast
Buckling of Radial Arms
Upheavals in Trunnion Chair and Failure of Anchor rods.
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c. External Alert Condition-RED
Rapidly increasing flow rate
Large seepage in the dam structure.
Cracks that extend to the reservoir level.
Significant movement or failure of any
structure of the Dam.
Overtopping of an earthen Dam.
Uncontrollable release of the reservoir.
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d. Sample Communication
The messages are communicated to downstream residents to alert the public of impending
danger. Messages can be communicated via radio, television, bulk SMSs of local mobile
networks and other media outlets.
BLUE EMERGENCY LEVEL
Announcement for a
Slowly Developing
“Watch” Condition
Krishna Bhagya Jala Nigam Ltd has declared a BLUE Level “Watch” condition for Almatti Dam, Project
Identification Code KA06HH0200 as of [time and date]. Although there is no immediate danger of the
Dam failing, actions are being taken to monitor and control the situation, quantity of any releases from
the reservoir.
Announcement for a
Worsening “Watch”
Condition
Although there is no immediate danger of the Dam failing a possibility now exists that the Dam will fail
if correction efforts are unsuccessful. Additional news will be made available as soon as it is received.
ORANGE EMERGENCY LEVEL
Announcement for a
Probable “Failure”
Condition
Urgent! This is an emergency message. Krishna Bhagya Jala Nigam Ltd has announced that Almatti
Dam, Project Identification Code KA06HH0200 is probably going to fail. [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 Krishna River and as well as the town of Vijayapura should
prepare for immediate evacuation. Additional news will be made available as soon as it is received.
RED EMERGENCY LEVEL
Announcement of an
Impending “Failure”
Condition (RED
Emergency Level)
Emergency! This is an emergency message. Almatti Dam, Project Identification Code KA06HH0200 is
going to fail at any moment. Residents who have not yet done so should immediately evacuate some
parts of Vijayapura District and low-lying areas along the Krishna River, The flood water 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. Almatti Dam, Project Identification Code KA06HH0200
failed at [time and date]. Residents who have not yet done so should immediately evacuate some parts
of Vijayapura District and low-lying areas along the Krishna River, the. The flood water has already
reached [Highway] and [Road]. Additional news will be made available as soon as it is received.
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11 List of stakeholders
• Water Resource Dept., (Dam owners)
• Revenue Dept.,
• District Disaster Management Authority
• Police Dept.,
• Health and Family Welfare Dept.,
• Rural Development and Panchayath Raj Dept.,
• Urban Local Bodies (Municipalities / Town Panchayath)
• Forest Dept.,
• Food and Civil Supply Dept.,
• Education Dept.,
• Transport Dept.,
• BSNL/Private Telecom Service Providers
• Fisheries Dept.,
• Horticulture Dept.,
• Tourism Dept.,
• Women and Child Welfare Dept.,
• Industries and Commerce Dept,.
• Muzurai and Wakf Dept.,
• Minor Irrigation and Ground Water Development Dept.,
• Public Representatives
• Local NGOs
• Print and Media
• Farmer Representatives
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• Implementation of the EAP and classification of events
• To ensure effective transmission of hydro-meteorological and
flow data within the department.
• Coordinating with u/s and d/s dams and states.
• Communication to be alert regarding the flood releases or
Failure situations.
• Coordinate with the District Administration and other
stakeholders.
• Timely operation of Radial gates and sluice gates.
• Conducting annual EAP review.
12 Roles and Responsibilities
a. Dam owners
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b. District commissioner/ DMA
Coordinating with Regional and State Disaster Management
Contacts.
Communication with Relief Authorities.
Issue of public announcements.
Coordinating with IMD, CWC, INCOIS etc., for disaster
specific information and disseminating the information for
coordinating with the GoK.
Facilitating the deployment of NDRF.
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c. Police Department
Install barricades in the affected bridges and
crossings.
Conduct rescue and recovery operation as required.
Ensure proper access to the emergency services.
Prioritize vehicle movement to the emergency site.
Control traffic and divert through alternative routes.
Dissemination of information to public.
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d. Fire Department
• Assist in evacuation operations.
• 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).
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e. Public Participation
Supporting the NDRF team for easing during the
evacuation.
Use a radio and local media for news updates.
Help neighbours when possible.
Turn off gas valves fed to appliances, water valves and
the electricity on the main fuse box.
Unplug all electrical items and store them away from
floodwaters.
To prevent sewage backups, put sandbags in the toilet
and obstructions on drain holes.
Wearing mosquito nets can combat the heightened threat
of mosquito-borne diseases.
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13. Five-step Response Process
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15. Notification Flow Chart
For Watch Condition Watch condition.pdf
For Failure Condition Failure condition.pdf
16. List of possible Affected Bridges and Barrage
Sl. No. Particulars Taluk Distance from
Dam (Km)
Remarks
1 Almatti bridge B.Bagewadi 1.83 Closer proximity to the
Almatti dam2 Railway Bridge
crossing
B.Bagewadi 1.58
3 Yalagur Bridge Muddebihal 3.79 Solapur-Mangalore
Highway (NH-50)
4 Hire Mygeri to
Kandaganur
Bagalkot 17.61 Near Hire Mygeri village
5 Tangadagi Bridge Hungund 31.61 Near Dhannur village
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17. Barricading Details
Sl.
No.Road Taluk Remarks
1 Almatti bridge (NH-13 Old) B.Bagewadi
Near Mannalli (from Solapur-Mangalore
Highway), all villages joining Almatti –
Sangam Cross (Sirur) near Sitimani
village, Araladinni junction to be
blocked.
2 Railway Bridge crossing B.BagewadiNear Sitimani railway station and Almatti
railway station have to be blocked.
3 Yalagur Bridge MuddebihalNear Hosur village and Yalagur cross
road have to be blocked.
4Hire Mygeri to Kandaganur
bridgeBagalkot
Mygeri village road and Kandaganur
road have to be blocked.
5 Tangadagi Bridge HungundRoad near Dhannur village and
Tangadagi have to be blocked.
6 Kudal-Sangam Cross Hungund
Road connecting Kudal-Sangam Cross
and Solapur-Mangalore Highway (NH-
50).
7Access road between Almatti
to Kudal-SangamHungund
Road connecting Manahalli to Kudal-
Sangam have to be blocked.
8Access road between Yelaguru
to NH-50Hungund
Road connecting Manahalli to Kudal-
Sangam. Yelaguru to NH-50 have to be
blocked.
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QUESTIONS/
COMMENTS
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THANK YOU