Krishna River Floods 30 Sep To 07oct09

Krishan River Floods, Presentation of the Govt of AP, Prepared by APSRAC, APSDMS, Dept of Planning, etc.

Draft Presentation

1. 1
ANDHRA PRADESH
APSRAC

2. 2

3. 3
Eight districts are affected due to heavy rainfall and the resultant flood waters
of Krishna and Tungabhadra rivers. The districts with number of mandals are
Kurnool (25 mandals)
Mahabubnagar (10 Mandals)
Nalgonda (8 mandals)
Krishna (18 mandals)
Guntur (18 mandals)
Kadapa (15 mandals)
Prakasam (2 mandals)
Ranga Reddy (5 mandals)
Part of Kadapa district which is out side the Krishna river basin was affected
due to overflow/diversion of flood waters into Kunderu river through
Potireddipadu head regulator, K.C. Canal,
In all the eight districts 571 villages are affected.
Total population affected is 17.5 lakhs

4. 4

5. 5
NORMAL RAINFALL AND ACTUAL RAINFALL (4 DAYS)

6. 6

7. 7
Number of dams / barrages on Krishna river in Andhra Pradesh : Five
Priyadarshini Jurala
Sunkesula Ayacut
Srisailam Dam
Nagarjuna Sagar
Prakasam Barrage
Main inflows to Priyadarshini Jurala Dam (located in Mahabubnagar
district) are from Narayanpur dam (Karnataka State)
Inflows to Srisailam dam is from Krishna ( Priyadarshini Jurala) and
Tungabhadra (Sunkesula anicut) rivers.
The observed peak inflows (cusecs) at major dams / barrages are as
follows.
Srisailam : Maximum peak inflow : 25 lakhs c/s (30.09.09)
Nagarjunasagar : Maximum peak inflow : 14.66 lakhsc/s(3.10.09)
Prakasam Barrage : Maximum peak inflow : 11.03 lakhs c/s (6.10.09)

8. 8

9. 9
Rise in inflows and outflows at Priyadarshini Jurala are
observed from 30.9.2009 to 03.10.2009.
Rise in inflows at Srisailam dam are observed from 30-9-2009
to 03-10-2009 and outflows from 30-09-2009 to 04-10-2009.
Rise in inflows in Nagarjunasagar Dam is observed on
30.9.2009 and rise in outflows started on 1.10.2009. The
maximum inflow and outflow is observed on 05.10.2009.
In case of Prakasam barrage rise in inflows and outflows
started on 2.10.2009 and continued till 06.10.2009.

10. 10

11. 11

12. 12

13. 13

14. 14
Kurnool, the district headquarters is located near the
confluence of Tungabhadraand Handririvers. The river Handri
and Kurnool-Kadapa canal passes through the Kurnool town.
The level of inundation in Kurnool town is extended upto
about 902 ft contour against 885 ft FRL at Srisailamdam.
The maximum extent of flooding occurred along Tungabhadra
and Handririvers inundating Kurnool town which is due to :
a) Back water effect uptoor slightly above 902 ft.
b) Inflows of more than 2 lakhcusecs from Handririver

15. 15
FLOOD AFFECTED AREA IN AND AROUND MANTRALAYAM

16. 16

17. 17

18. 18
Alampur, a pilgrim centre, located in
Mahabubnagar district adjacent to
Tungabhadrariver is highly damaged.
The level of inundation in Alampur town is
extended upto about 902 ft contour against
885 ft FRL at Srisailamdam.

19. 19

20. 20

21. 21

22. 22

23. 23
The back waters of Srisailam dam released from
Potireddipadu Head Regulator, KC Canal and Telugu
Ganga canals, to the tune of above 2 lakh cusecs came
into Kunderuriver and caused flooding in Nandyaltown
(Kurnool district) and the down stream villages before
joining PennarRiver.
Due to floods in Kunderu river 5 mandals in Kurnool
district and 5 mandalsin Kadapadistrict are affected.
The extent of inundation is observed between 200m
(Kunderuriver bed level) and 205m contours in Nandyal
town which is located along Kunderuriver.

24. 24

25. 25
Various flood scenarios have been developed for
the release of 10 lakh, 12 lakh, & 14 lakhcusecs of
water at NSP using MIKE II hydrodynamic model.
The flood scenario developed for the discharge of
12 lakh c/s at Nagarjunasagar project is close to
to the ground reality.
The likely flooding areas in the down stream of
Nagarjuna Sagar Dam shows 13 mandals in
Gunturdistrict and 16 mandalsin Krishna district .

26. 26

27. 27
The flood hazard map of Krishna and Guntur
districts is prepared (early 1990s) based on geo-
morphology, historical flood data, extensive
ground truth information etc.
The hazard map is superimposed with 1-5 km
buffer zones (one km interval) along Krishna
river.
The list of villages located in each one km buffer
zone, which are in highly flood prone areas, are
provided to the Government for relief operations
two days ahead of the deluge.

28. 28

29. 29
A breach in the flood bank of Krishna river is observed at
Oleru village, Bhattiprolu mandal, Guntur district on
6.10.2009.
Probable flood scenarios due to the breach were
developed using flood models, elevation data, drainage,
flood hazard maps and field experience.
The probable flood affected habitations (22no.) were
mapped and communicated to government for
evacuation and relief operations on 06.10.09.
The flood layer generated by NRSC using RISAT II
(6.10.09) and RADARSAT (7.10.2009) dataclearly
confirmed that the habitations that were given on 6.10.09
are affected.

30. 30

31. 31
No. of villages in Kurnool district : 33
No. of villages in Mahabubnagar district : 60
No. of villages in Nalgonda district : 10
No. of villages in Prakasam district : 1
No. of villages in Guntur district : 1
No. of villages in Nalgonda district : 85
No. of villages in Guntur district : 131
No. of villages in Khammam district: 14
No. of villages in Krishna district : 154
No. of villages in Guntur district : 191
No. of villages in Krishna district : 422
No. of villages in West Godavari district : 19

32. 32

33. 33
Dam break analysis is attempted to map the
probable inundation areas in the down stream
of dams / barrage.
This analysis is made based on volume of
inflow / outflow, characteristics of each dam,
contour, drainage, slope and historical data.
The extent of land use / land cover classes
likely to be damaged in the event of dam break
is also mapped.

34. 34

35. 35

36. 36

37. 37

38. 38

39. 39

40. 40
No. of flood affected villages/habitations in Guntur district : 103
No. of flood affected villages/habitations in Krishna district : 63

41. LANKAPALLE LANKA U.I
PAMIDIMUKKALA
VISWANATHAPALLE
KODURU
MUNNALURU
KUNIKINAPADU
CHEVITIKALLU
SERI AMARAVARAM
GANIATUKURU
KOTHAPETA
MOGULURU
KANCHIKA CHERLA
DAMULURU
THUMMALAPALEM
GUNTUPALLE
IBRAHIMPATNAM
KOTIKALAPUDI
MULAPADU
CHILUKURU
JUPUDI
KETANAKONDA
KACHAVARAM
IBRAHIMPATNAM
SRIKAKULAM
GHANTASALA
SANGALLAPALEM
VELADI
KODAVATIKALLU
PUNNAVALLI
KASARABADA
USTEPALLE
CHANDARLAPADU
YESUPURAM
NATCHUGUNTA
ELICHETLADIBBA
NAGAYALANKANAGAYALANKA
MOPIDEVI
MOPIDEVILANKA
K. KOTHAPALEM
BANDIKOLLALANKA
BOBBARLANKAMOPIDEVI
AMUDALA LANKACHALLAPALLI
PULIGADDA
EDLANKA
CHIRUVOLLANKAAVANIGADDA
MUKTESWARAPURAM
VEDADRI
RAVIRALA
KOWTHAVARI
AGRAHARAM
JAGGAYYAPETA
GOLLAPUDIVIJAYAWADA RURAL
THUMMALAPACHIKA
MULAKALAPALLI
KANIGIRI LANKA
KALINDIDIBBA
POTTIDIBBA
PILLAVARI LANKA
PAMULALANKATHOTLAVALLURU
ENAMALA KUDURUPENAMALURU
CHIRRAVUR
TADEPALLI
UNDAVALLI
PENUMAKATHADEPALLE
BETHAPUDIMANGALAGIRI
TADUVOYACHAMPETA
MADIPADU
AGRAHARAM
KONUR
KOGANTIVARIPALEM
KASTALA AGRAHARAM
PUTTAGUDEM
CHINTAPALLI
CHAMARRU
CHALLAGARIGA
AMBADIPUDI
GINJUPALLIACHAMPETA
VEMAVARAM
TURAKAPALEM
VELLAMPALLI
GOVINDAPURAMMACHAVARAM
PONDUGALA
ELIAMPET
TANGEDA
RAMAPURAM
NARAYANAPURAM
KATRAPADUDACHEPALLE
SINGUPALEM
PETERU
RAVIANANTHAVARAM
LANKAVANIDIBBA
RAJUKALVA
BOBBARLANKA
BETHAPUDI
ARAVAPALLI
KAMARAJUGADDA
CHODAYAPALEM
NALLURUREPALLE
PULICHINTA
KOLLURU
KETHAVARAM
CHITYALA THANDA
CHITYALA
KAMEPALLI
BODANAMBELLAMKONDA
PEDA KONDURU
GODAVARRUDUGGIRALA
VENKATAPALEM
UDDANDA
RAYUNIPALEM
RAYAPUDI
THALLAYAPALEM
HARISCHANDRAPURA
M
BORUPALEM
ABBARAJUPALEM
LINGAYAPALEMTHULLUR
VYKUNTAPURAM
PONDUGALA
PEDDA MADDURU
MUNUGODU
MALLADI
DIDUGU
DHARANIKOTA
AMARAVATHIAMARAVATHI
BOMMUVARIPALEM
KOTHAVURU LANKA
ANNAVARAPU LANKA
ATHALURIVARIPALEMKOLLIPAR
A
RAVI LANKA
KOTHA GUDEM
MUSTHAPHA NAGAR
GUNTUR GUDEM
KRISHNA NAGAR
SIVARAMA PURAM
THOKALAVANIPALEM
THIPPALA KATTA
THADIKALAPUDI
KISHKINDAPALEM
JUVVALA PALEM
MALALANKA
AVULA VARI PALEM
PEDA LANKA
GOLLAPALEM
IPURU LANKA
SUGGUNA LANKA
CHILUMURU LANKA
POTHARLANKA
DONEPUDI
KOLLURU
GAJULLANKA
CHINTHALLANKAKOLLUR
VELLATURU
VEMAVARAM
CHINTAMOTU
PESARLANKA
PEDDAPULIVARRU
OLERU
PEDDALANKA
GORIGAPUDIBHATTIPROLU
RAMAPURAM
GOTTIMUKKALAGURAZALA
LAKSHAMINARASIMH
APUR
GOPALAPURAM
ECONAMPETMACHERLA
VILLAGEMANDAL VILLAGEMANDAL VILLAGEMANDAL VILLAGEMANDAL VILLAGEMANDAL
Flood affected villages inKrishnaandGunturdistricts
Source: DMD, GoAP