It started heavily even in Thiruvananthapuram. Heard that Mudirapuzha arm of Periyar receiving heavy rainfall and Madupetty Dam shutters are opened. Mullaperiyar is at 136.60 ft at 12noon today. #KeralaFloods
The water from Madupetty Dam will flow through Munnar to Kallarkutty and Lower Periyar Dams and will join Bhoothankettu Barrage in Periyar River..
Mudirapuzha arm of Periyar is used to receive heavy rainfall. This sub basin along with Mullaperiyar catchment created great havocs in 1924 and 1961 floods.
It seems Mullaperiyar getting filled fast
Water level today
6AM - 136.10 ft
8AM - 136.20 ft
10AM - 136.40 ft
12Noon - 136.60 ft
1 PM - 136.80ft
Understand the Mudirapuzha arm of Periyar.
It has 6 reservoirs viz. Kundala, Madupetty, Anayirankal, Ponmudi, Sengulam, Kallarkutty.
But these 6 reservoirs having 162.40 MCM (5.74 TMC).
To get a perspective, please understand that live storages of other reservoirs in the Periyar
6AM - 136.10 ft
8AM - 136.20 ft
10AM - 136.40 ft
12Noon - 136.60 ft
1 PM - 136.80ft
2 PM - 137.00 ft
#Mullaperiyar reservoir water level at 5 pm is 137.50 ft, at this rate of inflow continues, the reservoir may reach its Full capacity within 26 to 27 hours. Crisis management decided to start evacuation of people as spill of the reservoir is imminent #KeralaFloods
1.6 ft rise in last 13 hours. 0.6 ft rise in last 4 hours.
People are requested to fully co-operate with District/Disaster Management Authorities, as the chances of spill from the reservoir is imminent, if inflow is not reduced
Latest update:
14.08.2018 @08.00pm
Periyar Dam
Lake level ...137.90ft
14.08.2018 @08.30pm
Periyar Dam
Lake level ...138.00 ft
TN PWD issued second warning for #Mullaperiyar Dam as it's reached 138 ft at 8:30 PM today
Mullaperiyar Update 9 PM
Water level 138.10 ft.
No respite in the inflow.
So be alert
Mullaperiyar Update 9.30 PM
Water level 138.30 ft.
Inflow getting further increased.
So be alert
Mullaperiyar Update 10:00 PM
Water level 138.50 ft.
Inflow is heavy, at this rate expect opening of spillway gates any time in next 8 hours.
So be alert
Mullaperiyar Update 10:30 PM
Water level 138.70 ft.
Inflow is heavy, at this rate expect opening of spillway gates any time in next 7-8 hours.
Mullaperiyar Update 11:00 PM
Water level 138.85 ft.
Mullaperiyar is not having any flexibility like Idukki both is having almost equal catchment areas.
Mullaperiyar - 624 sqkm
Idukki- 625 sqkm
Mullaperiyar storage is just 20% Idukki storage, so Mullaperiyar will swell much faster. This reservoir is not having the flexibility!
That is one major reason, we are asking don't raise reservoir level. We allowed TN to increase tunnel size from 1300 cusecs to 2200 cusecs in 1954 and hence TN able to draw 96% of water from this reservoir even at 136 ft.
So after the diversion tunnel size increase and Vaigai reservoir, the quantity of water taken from Mullaperiyar has increased and the spill is reduced.
But when emotions are in play, no one want to listen to the facts.
Mullaperiyar touched 139 ft at 11:30 PM, some small reduction in inflow now. But we are crossing fingers
In no reservoir, we can't take 100% water, even giants like Idukki, Mettur etc are also spilling.
We need flexibility of operation, we cant release water irrationally.This is one reason, we started operating Idukki at 2400 ft before it's FRL of 2403 ft while Dam top is 2415 ft.
Leave all issues or whether Dam is structurally or seismically safe. We should see it's hydrological flexibility. What gain we will active when we are able to utilise 96% of inflow in the catchment with present storage? Hardly less than 1% increase in utilisation from 136 to 142
This is to clarify to the media that TN is taking water at it's full capacity of tunnel at 2200 cusecs and there was no reduction in intake. Water level increase is due to heavy rainfall in the catchment.
District Collector, Idukki informed that evacuation of people from downstream of Mullaperiyar Dam is completed. Dam Spillway will be opened soon and TN will open it when its closer to 140 ft.
#Mullaperiyar Dam may be opened at tonight 1:30am as the inflow is heavy. Supervisory Committee Chairman is now in the loop
No one is sleeping tonight. All Senior Secretaries, SDMA people, KSEBL Chairman, Chief Engineers of KSEB and Irrigation Dept, All District Collectors, Police, Revenue..We all are in the loop, each minute is updated and collective decision making is happening. Of course, I am too
Idamalayar spill will be 22,000 cusecs and Idukki spill will be 26500 cusecs..
Kallar, Idukki's augmentation started spilling. Lower Nirar Dam, TN is spilling to Idamalayar
Idukki inflow touched a whopping 1817 cumecs or 64000 cusecs. This is now equal to what recorded there at 1961!
Mullaperiyar Dam 15.08.2018 @12:30 Am
Lake level : 139.30 ft
Inflow: 23200 cusecs
KSEB seeking sanction to release 24000 cusecs from the Kakki reservoir and 7000cumecs of water from Pamba dam in to the Pamba River. #KeralaFloods
Revenue Additional Chief Secretary and Chairman, KSEB are not even blinking. We all brainstorming how to handle this deluge. Kerala's bureaucracy is setting example here
#Mullaperiyar further raised to 139.70 ft @ 01:30 hrs, at this rate it will reach 140 ft by 2:30 hrs and TN will start release from that point.
Learnt that Ullunkal Pvt Small HEP in Pamba River basin is sank in today's flood.
KSEB Chairman deserves a salute, still with the State's emergency response team. He is not ready to take any rest..Just staying with we engineers and scientists in the team
Our Engineers manning dams in Chalakudy basin deserves a standing ovation. They are doing their best to balance between Kerala Sholayar and Poringalkuthu. Even when water level in Poringalkuthu reached danger levels, they keep cool and acting their professional best.
None of the District Collectors are sleeping..
See message from a DC
"Announcement is going on. Tahsildars and vos are already in the field . Police is also alerting people."
Mullaperiyar reached 140 ft!
My field engineers reporting
Mullaperiyar @2:30Am
Lake level : 140.00 ft
Inflow: 23200 cusecs
Storage: 12218.0 Mcft
Discharge: 2200 cusecs
Now all 13 shutters of MPD is going to be opened for 1ft and going to release 4500 cusecs
We are planning for increasing Idukki discharge considering Mullaperiyar spill coming fast to Idukki Dam. It will reach Idukki by tomorrow morning 7.30 AM
In a flood like this magnitude, power draft becomes irrelevant. For Idukki inflow of 64000 cusecs, compare power draft of 4000 cusecs. For Mullaperiyar inflow of 30200 cusecs, consider tunnel draft of 2200 cusecs
Malankara Dam which receives Idukki PH tailwaters
FRL 42m.
At 3.00AM
Water level becomes 41.44m..
Now Opened shutters are 1,2,3,4& 5 are 1.5m each
Boothathankettu barrage is now discharge around 1,77,000 cusecs to Periyar River. This is the last point where the river is dammed. Waiting for update from CWC to see how much will be at Neeleswaram tomorrow?
Mostly this is matching 1961 flood of 2.5 lakh cusecs there then
Only relief is Idukki and Idamalayar catchments inflow reduced to 65%. Hope the recession limb will continue till we can evacuate more people #KeralaFloods
No officer from the Assistant Engineer in the field to Chief Engineers to Senior Secretaries to KSEB Chairman to SDMA officials to District Collectors to Police to Fire Force have not blinked their eyes last night, all are working like a well oiled machine. Proud about our team!
Mullaperiyar touched 141 feet now!
Crazy Madupetty had 23cms rainfall last night
What we are witnessing now is a repeat of the 1961 flood!! The second biggest flood Kerala had in the last 100 years!
Please remember it's still nowhere close to what we had in 1924.
Our field team just sent this picture of Mullaperiyar Spill #KeralaFloods
Aluva at 7 AM today. This is repeat of 1961 deluge #KeralaFloods
Sent by another colleague
Pamba getting crazier by each minute passing ..KSEB Engineers reside here for Ranni-Perunadu scheme all escaped #KeralaFloods
Idukki inflow again increases. Now it's 53515 cusecs! While it's spilling 30000 cusecs #KeralaFloods
Around 10 TMC of water is already spilled from Idukki reservoir since it's opening #KeralaFloods ,which is almost 20% of its live storage capacity
Its an overwhelming experience to see that how KSEB Chairman & Managing Director Sri. N.S. Pillai IA&AS encouraging and standing by his team of Engineers. Like a true leader he is leading them from the front. I am so proud of my parent organisation 👍
None of the Engineers in our generation seen such a flood and that did not deter our determination to manage this crazy deluge, we are stretched to our limits, but we enjoy doing this for our people. It's not what you learn in Engg College, it's the practical wisdom!
Now #Mullaperyar spillway release is 9000cusec. It will be increased to 15000 in another 1hr.
Water is entering the control room of 110kv substation kurumassery, EKM. We may be forced to shutdown the station if level further increases. Deputy Chief Engineer, Kalamassery informs #KeralaFloods
Neyyar and Peppara reservoirs in Trivandrum too getting brim and going to spill.
Just 126 Mcft remains in #Mullaperiyar to reach the Supreme Court permitted level of 142 ft, with the present net inflow of 15000 cusecs, MPD will breach 142 ft within next 4 hours
As rains are intensifying and #Mullaperiyar will discharge more water to Idukki, KSEBL explore the possibility of enhancing the spillway release from 1000 cumecs (35315 cusecs)
Kochi airport operations temporarily suspended till 18th Saturday 2 PM since the inflow of water is still on a raising trend. We are working hard to drain out the storm water. All are requested to co-operate. Control room number: 0484 3053500, 2610094
Don't get the logic of TN Engineers to reduce the spillway gates height from 1.5ft to 1ft while there is heavy inflow?
NDRF team from Pune is led by Commander Vairav is on the way to Trivandrum for further deployment in districts is coming with additional life saving equipments
Dam Safety AEE, Moozhiyar 2 others who had gone to Kakki Anathode for gate operation yesterday could not return to Moozhiyar due to a landslide near Kakki Intake. The road between Kakki and Anathode also is blocked. Now they are stranded at Kakki with no food or communication.
Upputhara chappath area is reported to be flooded with water flowing over the bridge...
This is said to be release from #Mullaperiyar flowing into Idukki.
Flash releases from MPD could have been avoided, if they released earlier
IDUKKI RESERVOIR Dt: 15.08.2018
WL at 6.00pm 2399.36ft
Mullaperiyar reservoir crossing Supreme Court set permissible level now it is getting to 142.4 ft.
A dangerous games by TN
110kV SS, Kaloor, EKM- Water level in the SS compound is in increasing trend. Rain is continuing. On Safety point, SS will be S/off if storm water enters control room.
There is no flooding in Kalamassery SS.
But there is flooding in the 110kV SS, Kaloor, Which is switched off at 22.25hrs.
All other SS in City area are in Safe condition.
Our field engineers just messaged that there is heavy rainfall in the Mullaperiyar catchment...
Please please be safe people in Chalakudy basin, we are expecting something so severe there. Move away to safer places. The flood is unimaginable proportions here.
Petitioner seeks directions to be issued to Centre under Disaster Management Act to ensure proper management of water level in Mullaperiyar dam mentioned in Supreme Court & better coordination b/w states. Petitioner is Russel Roy & Advocate Manoj George
It is learned that the Maniyar Private power house is submerged in water
"Thodupuzha town mostly submerged with people reporting 4ft wall of water in core town.. Access to my home (Kanjar) has also been cutoff due to severe landslides and paving of portion of the land holding water spread area of malankara dam"
Heavy earth slip including heavy boulders near intake of kakki dam and two more slips. Electrc line broken at earth slip of kakki. Road to Anathodu and Vallakkadav also block no stock of food materials even in kochu pampa canteen
It is reported that heavy rainfall is happening in Kumili, close to Mullaperiyar
Present 79.56 FRL 79.25
4 Shutters opened 56 inches
Be safe
I was forced put my mobile in blocking mode.
We lack a culture to respond in a crisis, it's not the time to have discussions at prime time with semi-informed "experts". Just report & do some help to alert the official machinery.
Not participating any debate till this is over
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Many here asked me why I am not reacted to the latest RBI Annual Report which exposed DeMon as nothing but a perverted dream of a Tughlak.
First of all there was nothing surprising elements there for me!!
Then everyone was discussing the amount of 99% returned to the system! Some sigh of relief as our Urjit stop counting, but I don't get any evidence that he has stopped that!!
Because still we hear about old SBN notes are seized by agencies ;)
Annual Report 2017-18 of the RBI that Rs.15.311 trillion Specified Bank Notes was returned. While RBI in its AR in 2016-17 itself admitted that as of June 30, 2017, received Rs.15.28 trillion of SBN.
IMD started issuing alerts "be prepared" from August 8! "For action" was issued on August 9.
At least glad that IMD admitted that their alerts were that close.
Also thank you for not claiming that they have issued alerts for "extreme rainfall" and only "heavy rainfall" then
I scanned all those reports of this regional office issued. NOWHERE I SEEN AN EXTREME RAINFALL EVENT ALERT. Each Monsoon season IMD used to issue HEAVY TO VERY HEAVY RAINFALL alerts and small reservoirs used to spill and the spate will be comfortably negotiated by the rivers
Please understand the nuances. We can negotiate a heavy rainfall event, whatever allowances in the dams and river channels are sufficient to negotiate that one. You will see some flooding, may be a knee deep one & dams spill w/o any problems
"In Kerala, there’s no reason to damn the dams" here is my answer to all pundits who are preaching an early opening of Idukki would have saved the flooding of Periyar..
I felt depressed when a person who served as the Director of the prestigious IITM says that he has given warning & Kerala has no respect for his warning but Odisha has!!
Oh boy!! I am at a loss if you cant discern cyclones in East coast and extreme rainfall in Western coast
With due respect to his credentials as an expert environmentalist, I differ with him, because this is a repeat of 1924 and this type of extreme events will occur with an annual exceedence probability of 9.52% in a span of 100 years!
How many dams are there in Achecoil, Manimala & Meenachil which created havoc in Central Kerala?
ZERO
How much yield of Pamba River is impounded in the dams there?
JUST 10.4%
Blame it on dams!!
Come to the Northern Kerala.....
There you have the Great Chaliyar River, which flows through Kozhikode and Malappuram Districts.
How many dams are there is this Chaliyar River basin other than some small weirs?
ZERO.
Blame it on dams..
Why ur doing annual maintenance of Idukki machines whn the Monsoon is active?
Smart QN.
But understand that Idukki is meeting Kerala's peak energy demand, its annual maintenance are done during monsoon and its all machine are needed in summer whn demand high, not in monsoon