polavaram

[swas]

not at a time, in  a span flood period (3-4 days)

 

 

Brother in Godavari mainly in Rajahmundry in a year span in 2015 100+ tmc/day vachindi floods for 4-5 days ante 400-500tmc in 4-5 days washed away into sea.

 

In 2008or 2009 lo exact year gurthuledu 150+ tmc per day washed into sea

 

Godavari is aggressive every year even last year lo 50+ tmc water went into sea 

 

Max flood is 300+ tmc/day in 1986

 

Even today 8700+ cusecs inflow una only river in south india is godavari(data is from cm dashboard)

[swas]

enduku master oorike comedy chestharu manakanna ekkuve telusule vallaki 

 

 

I didn't criticized him brother i told him 1600tmc anedi world lo ne last 1000 years lo ne raledu max flood is amazon river 1000tmc in 1953 lo vachindi that too heavy forests valla manaki forests ekada unayi le 

[sonykongara]

gettiga 10tmc vastene nilabadadu,pulichinthala case loo chusam gaa

 copper dam 100 years max flood tattukune laga main dam 1000 years max flood tatttukune laga  design chesaru

[sonykongara]

swas bro cheppedi nijame antha radu anukunta

[mahesh1987]

Amazon river 1953

1953 it was more then 1000TMC 

 

in that year it peaked about 70000 TMC per day

[mahesh1987]

naa deggara godavari flood risk analysis book vundi

 

free gaa vunnapudu will post details 

[swas]

naa deggara godavari flood risk analysis book vundi

 

free gaa vunnapudu will post details 

[mahesh1987]

swas bro cheppedi nijame antha radu anukunta

1600tmc cumulative for that particulate flood period anedi frequent gaa jarugutaane vuntadi yearly once ala

[mahesh1987]

recently in 2013 July around 1550-1600 TMC water released for that particular flood period (8/9 days) 

[mahesh1987]

recently in 2013 July around 1550-1600 TMC water released for that particular flood period (8/9 days) 

after 5 days of this  another flood period with 1200 TMC released from dawaleswaram in 7/8 days 

[surapaneni1]

I didn't criticized him brother i told him 1600tmc anedi world lo ne last 1000 years lo ne raledu max flood is amazon river 1000tmc in 1953 lo vachindi that too heavy forests valla manaki forests ekada unayi le 

 

i am polavaram gates quality control officer.. visit every friday/saturday ... last time vellinappu i saw the report submitted to CM on copper dam about expert committe... may be the conversation wrong by me.. but concept is same....

[AnnaGaru]

TMC/day kanna MAX cuesecs inflow anedi main...40 lakh cuesecs is the maximum polavaram DAM has to be designed...

 

Srisailum lo 2009 lo ade same cuesecs inflow inko 1 hr+ continue ayete ghoram jarigedi...DAM tilted few "mm" in 2009 as the Irrigation minister was busy in "savam" politics....Srisailum dam gates vadalatam late chesaru and e lopu 10,000 years flood vachindi....

 

OCt-3rd, 25 lakh cuesec vachindi antaru....a roju Irrigation engineer lu vaniki poyaru all across Krishna basin down Srisailum...

[sonykongara]

TMC/day kanna MAX cuesecs inflow anedi main...40 lakh cuesecs is the maximum polavaram DAM has to be designed...

 

Srisailum lo 2009 lo ade same cuesecs inflow inko 1 hr+ continue ayete ghoram jarigedi...DAM tilted few "mm" in 2009 as the Irrigation minister was busy in "savam" politics....Srisailum dam gates vadalatam late chesaru and e lopu 10,000 years flood vachindi....

 

OCt-3rd, 25 lakh cuesec vachindi antaru....a roju Irrigation engineer lu vaniki poyaru all across Krishna basin down Srisailum...

50 lakh cuesecs anukunta kadha bro

[AnnaGaru]

 

 

50 lakh cuesecs anukunta kadha bro

 

That may be correct...Inflow projection kept on changing...in 2007 they showed 40 as 1000 years max... and later central experts increased it....Even in CAG report of 2009 they slammed wrong measurement...

[sonykongara]

That may be correct...Inflow projection kept on changing...in 2007 they showed 40 as 1000 years max... and later central experts increased it....Even in CAG report of 2009 they slammed wrong measurement...

kiran bro, nenu cheppedi  DAM design chesindi  max 50 lakh cuesecs  ki anukunta kadha

[sonykongara]

నాణ్యతలో రాజీ లేదు!
 

• అవసరమైతే ప్రత్యేకసంస్థతో పర్యవేక్షణ
• సకాలంలో పోలవరం పూర్తికి పరుగులు
• 17న కాపర్‌డ్యామ్‌ పనులు ప్రారంభం
• కేంద్ర డిజైన్‌ నిపుణులతో చంద్రబాబు
• డ్యామ్‌ అద్భుత అవకాశం: పాండ్యా

అమరావతి, ఏప్రిల్‌ 5 (ఆంధ్రజ్యోతి): ‘‘పోలవరం ప్రాజెక్టు నిర్మాణాన్ని సకాలంలోనే పూర్తిచేసేందుకు లక్ష్యాలను నిర్ధేశించుకొని పనిచేస్తున్నాం. నిర్మాణపనుల విషయంలో ఎక్కడా రాజీ లేదు’’ అని ముఖ్యమంత్రి చంద్రబాబు స్పష్టం చేశారు. ప్రాజెక్టు పనుల పర్యవేక్షణ కోసం థర్డ్‌ పార్టీ క్వాలిటీ కంట్రోల్‌ వ్యవస్థను ఏర్పాటు చేస్తామన్న ఆయన, అవసరమైతే క్వాలిటీ కంట్రోల్‌ పర్యవేక్షణ నిరంతరం కొనసాగేలా కంట్రోల్‌ ఇన్‌స్టిట్యూషన్‌ను లేక ప్రత్యేక సంస్థను ఏర్పాటు చేసేందుకూ సిద్ధమేనని పోలవరం డ్యామ్‌ డిజైన్‌ కమిటీ చైర్మన్‌ పాండ్యాకు తెలిపారు. ఇప్పటిదాకా, ఢిల్లీలో, హైదరాబాద్‌లో, పోలవరం డ్యామ్‌ సైట్‌లో సమీక్షలను నిర్వహించిన పాండ్యా నేతృత్వంలోని కమిటీ .. ఏపీ ప్రభుత్వ అభ్యర్థన మేరకు బుధవారం విజయవాడకు వచ్చింది. ఉదయం నుంచి సాయంత్రం వరకూ డ్యామ్‌ డిజైన్‌లపై పాండ్యా, మంత్రి దేవినేని ఉమా సమీక్ష జరిపారు. అనంతరం వీరంతా కలిసి ముఖ్యమంత్రి నివాసంలో చంద్రబాబుతో భేటీ అయ్యారు. గంటన్నర సేపు సాగిన ఈభేటీలో ప్రాజెక్టు డిజైన్‌లు త్వరితగతిన అందించాలని, నిర్మాణంలో సంపూర్ణ సహకారం అందించాలని పాండ్యాకు సీఎం విజ్ఞప్తి చేశారు. ప్రాజెక్టు నిర్మాణం విషయంలో ఏపీకి పూర్తి సహకారం అందించాలని ఇప్పటికే తమను కేంద్ర ప్రభుత్వం ఆదేశించిందని సీఎంతో పాండ్యా అన్నారు. డ్యామ్‌ నిర్మాణ ప్రాంతానికి తరచూ వస్తుంటే, లోటుపాట్లను తెలియజేసేందుకు ఆస్కారం కలుగుతుందని చంద్రబాబు సూచించగా, పాండ్యా అంగీకారం తెలిపారు. నదుల అనుసంధానంలో జాతీయ స్థాయిలో కీలకపాత్రను పోషిస్తున్న పాండ్యాతో .. ఇతర రాష్ట్రాల్లో అమలు తీరుపై చంద్రబాబు ఆరా తీశారు. కేవలం నదుల అనుసంధానినకే పరిమితం కాకుండా .. చెరువులన్నింటిని గొలుసు కట్టుగా మారుస్తున్నామని ఆయన దృష్టికి తీసుకెళ్లారు. ఈ సమయంలో, ప్రపంచ ప్రసిద్ధి భారీ డ్యామ్‌ల ప్రస్తావన వచ్చింది. పోలవరం ప్రాజెక్టు చాలా అరుదైనదని, ఇలాంటి ప్రాజెక్టుల నిర్మాణం అద్భుత అవకాశమని, డ్యామ్‌ గేట్లు ప్రపంచంలోనే అత్యంత పొడవైనవని పాండ్యా అభిప్రాయపడ్డారు.

 

డ్రౌటింగ్‌కే మొగ్గు..

పోలవరం డ్యామ్‌ నిర్మాణంలో అత్యంత కీలకమైన కాపర్‌ డ్యామ్‌ నిర్మాణ పనులకు సంబంధించి పునాదులు ఏవిధంగా వేయాలన్న సందేహాలు నెలకొన్నాయి. డయాఫ్రమ్‌వాల్‌ను నిర్మించాలా లేక డ్రౌటింగ్‌ చేయాలా అనేదానిపై నిపుణుల కమిటీ సభ్యులు దాదాపు మూడు గంటలపాటు తర్జనభర్జన పడ్డారు. అంతర్జాతీయ స్థాయిలో నివేదికలతోపాటు, దేశీయ పరిజ్ఞానం, భౌగోళిక స్థితిగతులను అంచనా వేశారు. చివరకు డ్రౌటింగ్‌ విధానంలో కాపర్‌ డ్యామ్‌ పునాదిని నిర్మించాలని నిర్ణయించారు. వారం రోజుల్లో సంపూర్ణ నివేదికలు వస్తాయని, వాటి ఆధారంగా ఈ నెల 17 నుంచి కాపర్‌ డ్యామ్‌ నిర్మాణ పనులు చేపట్టాలని నిర్ణయించారు. గేట్ల నిర్మాణ పనులపైనా నిపుణుల కమిటీ సమీక్షించింది. కాగా.. అతి అరుదైన ప్రాజెక్టు నిర్మాణ పనుల్లో సంపూర్ణ సహకారం అందిస్తామని సీఎంకి పాండ్యా హామీ ఇచ్చారు.

 

త్వరగా డిజైన్లు ఇవ్వండి : ఉమా
పోలవరం పనులు సత్వరమే పూర్తిచేసేందుకు వీలుగా ప్రధాన డ్యామ్‌ డిజైన్లను త్వరితగతిన అందించాలని కేంద్ర ప్రభుత్వ డ్యామ్‌ డిజైన్‌ కమిటీని రాష్ట్ర జలవనరులశాఖ మంత్రి దేవినేని ఉమామహేశ్వరరావు కోరారు. కాపర్‌డ్యామ్‌, స్పిల్‌వే, స్పిల్‌ చానల్‌, జెట్‌ గ్రోతింగ్‌ తదితర అంశాలపై పాండ్యా నేతృత్వంలోని నిపుణులతో ఆయన సమీక్షించారు. ఐఐటీ ఢిల్లీకి చెందిన ప్రొఫెసర్‌ జీవీ రమణ బృందం సాంకేతికాంశాలను సవివరంగా మంత్రికి తెలియజేసింది. డ్యామ్‌వద్దకు ఎక్కువ వరద నీరు వచ్చినా, భూకంపాలు సంభవించినా, తట్టుకుని నిలబడేలా గేట్ల నిర్మాణం చేపట్టడం తదితర అంశాలను రమణ వివరించారు. సాధ్యమైనంత తొందరగా విశ్లేషణ జరిపి, డిజైన్లు ఇస్తే... వాటిపై తుది నిర్ణయం తీసుకోవడానికి ఆస్కారం ఉంటుందని ఉమా కోరారు.

[manaNTR]

Rajahmundry: Following severe criticism from Opposition parties and experts on enhancement of coffer dam height to plus 41 metres from the proposed plus 31 metres, who believe that the move was aimed to delay the construction of the earth-cum-rock-fill dam of Polavaram irrigation project, the state government has clarified that it was the Design Review Committee (DRC) which enhanced the dam’s height so as to withstand high floods in the Godavari river.

 

Coffer dam is a kind of temporary structure constructed across the Godavari river to stop the water flow to construct earth-cum-rock-fill dam of the Polavaram project. Though the coffer dam was initially planned at a height of plus 31 metres to check nearly 25 lakh cusecs of water in the river, the Design Review Committee consisting of experts from Central Water Commission and other agencies enhanced its height to plus 41 metres to enable it to withstand pressure of nearly 28 lakh cusecs of water in the river. DRC had carried out a series of studies and even studied model coffer dams before arriving at the decision to enhance its height.

 

Water resources authorities say that a spillway with 48 gates is also being constructed. If the river witnesses heavy inflow of water, they will open the gates and allow the water to flow to ensure that the coffer dam is not washed away.

 

In case the inflow of water into the river is on expected lines, they will open two gates and allow nearly 11,000 cusecs of water into the spillway and from there the water will flow by gravity into the Polavaram Right Ma-in Canal to supply water to its command area and allow the water to flow fu-rther even to the Krishna delta, based on need.

 

Polavaram project superintending engineer V.S. Ramesh Babu said, “The DRC has taken the decision to enhance the height of the coffer dam to sustain water inflow into the river of up to 28,000 cusecs of water. If the height of the dam is not enhanced and there is heavy inflow of water into the river during rainy season, we have to stop construction of the earth-cum-rock-fill dam and this will further delay completion of execution of the project.”

 

Retired irrigation engineer K. Haranath said, “Construction of coffer dam to stop inflow of wa-ter in the river for constr-uction of earth-cum-ro-ck-fill dam is a common phenomenon. But in case of unprecedented flood in the river, no coffer dam can withstand it.”

 

Following severe criticism from Opposition parties and experts on enhancement of coffer dam height to plus 41 metres from the proposed plus 31 metres, who believe that the move was aimed to delay the construction of the earth-cum-rock-fill dam of Polavaram irrigation project, the state government has clarified that it was the Design Review Committee (DRC) which enhanced the dam’s height so as to withstand high floods in the Godavari river.

 

Coffer dam is a kind of temporary structure constructed across the Godavari river to stop the water flow to construct earth-cum-rock-fill dam of the Polavaram project. Though the coffer dam was initially planned at a height of plus 31 metres to check nearly 25 lakh cusecs of water in the river, the Design Review Committee consisting of experts from Central Water Commission and other agencies enhanced its height to plus 41 metres to enable it to withstand pressure of nearly 28 lakh cusecs of water in the river. DRC had carried out a series of studies and even studied model coffer dams before arriving at the decision to enhance its height.

 

Water resources authorities say that a spillway with 48 gates is also being constructed. If the river witnesses heavy inflow of water, they will open the gates and allow the water to flow to ensure that the coffer dam is not washed away. In case the inflow of water into the river is on expected lines, they will open two gates and allow nearly 11,000 cusecs of water into the spillway and from there the water will flow by gravity into the Polavaram Right Ma-in Canal to supply water to its command area and allow the water to flow further even to the Krishna delta, based on need.

 

Polavaram project superintending engineer V.S. Ramesh Babu said, “The DRC has taken the decision to enhance the height of the coffer dam to sustain water inflow into the river of up to 28,000 cusecs of water. If the height of the dam is not enhanced and there is heavy inflow of water into the river during rainy season, we have to stop construction of the earth-cum-rock-fill dam and this will further delay completion of execution of the project.”

 

Retired irrigation engineer K. Haranath said, “Construction of coffer dam to stop inflow of water in the river for construction of earth-cum-ro-ck-fill dam is a common phenomenon. But in case of unprecedented flood in the river, no coffer dam can withstand it.”

[swarnandhra]

TMC/day kanna MAX cuesecs inflow anedi main...

Correct water inflow rate is important for dam safety. water volume it received in 1 day or 4 days does not matter unless there is no path for water to flow down the river.

[swas]

1600tmc cumulative for that particulate flood period anedi frequent gaa jarugutaane vuntadi yearly once ala

 

 

after 5 days of this  another flood period with 1200 TMC released from dawaleswaram in 7/8 days 

 

 

 

I know that brother i said 1 day lo 1600 tmc flood radu ani cheppa in 1 week or 10 days that flow is seen every year.

 

Even it is 200 tmc/day also it goes into sea by making surrounding areas submerged into water and water goes into sea automatically.

 

 

1 week lo 1200tmc vachina sare godavari surrounding areas will be drowned and water is going into sea.

 

Main thing is if water levels are more the polavaram works will gets stopped automatically.

 

coffer dam unte minimum water levels maintain cheyochu and  give water to both the canals.

But gates needs to be fitted and if water levels are more it is automatically send out of dam

Till whole dam is completed we need to look into inflows and outflows main ga monitor cheyali leka pothe we can't construct dam

[swarnandhra]

1953 it was more then 1000TMC 

 

in that year it peaked about 70000 TMC per day

in 1953 max flood was 1037 - 1128 TMC/day (depending on the source, 340000 - 370000 cumecs). 

70000 TMC a day???????????????

with that much water entire India will be flooded 2 feet deep and entire Brazil 9 inch deep (assuming flat surface).

[mahesh1987]

in 1953 max flood was 1037 - 1128 TMC/day (depending on the source, 340000 - 370000 cumecs).

70000 TMC a day???????????????

with that much water entire India will be flooded 2 feet deep and entire Brazil 9 inch deep (assuming flat surface).

Max flow at a point of time

[mahesh1987]

 

How can we except cumulative flood of 1600tmc is impossible one ??

 

 

???

[swas]

 

For now all are on track 

 

Main ga this season lo rains start aye time ki works complete cheyali or else malli january varuku wait cheyali

 

Watch at 9:32 one design okay ante it is not final, for example spillway lo each block ki markings chesi till stones vache varuku tavvi stone strong or weak chusaka final design ok chestaru.

 

So designs for minor things will change based on type of soil/rock

[sonykongara]

 

For now all are on track 

 

Main ga this season lo rains start aye time ki works complete cheyali or else malli january varuku wait cheyali

tfs bro

[curiousgally]

nice video swas bro. I don't understand why no media is highlighting the work progress being made in polavaram. We only see a single paragraph article every Tuesday with statements from CBN in his Monday review meeting. Jaggadu melukuva vunna time motham abbaddalatho cover chesthuntadu. I wish one day CBN challenges him for an open debate and rapes him in front of public. 

[Yaswanth.M]

nice video swas bro. I don't understand why no media is highlighting the work progress being made in polavaram. We only see a single paragraph article every Tuesday with statements from CBN in his Monday review meeting. Jaggadu melukuva vunna time motham abbaddalatho cover chesthuntadu. I wish one day CBN challenges him for an open debate and rapes him in front of public.

[RKumar]

CBN should ask EG & WG MLAs to daily monitor Polavaram work apart from his review. He can give that responsibility to 2-3 Senior MLAs in both districts. They will also feel involved & take Polavaram project benefits to people.

[sonykongara]

CBN should ask EG & WG MLAs to daily monitor Polavaram work apart from his review. He can give that responsibility to 2-3 Senior MLAs in both districts. They will also feel involved & take Polavaram project benefits to people.

good idea

[sskmaestro]

CBN should ask EG & WG MLAs to daily monitor Polavaram work apart from his review. He can give that responsibility to 2-3 Senior MLAs in both districts. They will also feel involved & take Polavaram project benefits to people.

Too many cooks spoil the soup! CBN and jr CBN (uma) enough to monitor things

[JAYAM_NANI]

CBN should ask EG & WG MLAs to daily monitor Polavaram work apart from his review. He can give that responsibility to 2-3 Senior MLAs in both districts. They will also feel involved & take Polavaram project benefits to people.

 

This will only spoil the entire project.