NEYYAR IRRIGATION PROJECT


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Details of Dam Engineers
Chief Engineer Chief Engineer (Projects II)
Executive Engineer Irrigation Division, Thiruvanathapuram
Assistant Executive Engineer NIP Channel Sub Division
Assistant Engineer Neyyar Dam Section
 
General
State Kerala
District Thiruvananthapuram
Taluk/Village Neyyattinkara
Latitude 8° 32' North
Longitude 77° 09' East
River Neyyar
Structural Features of the Dam
Type Straight Gravity Type- Masonry Dam
Top Width 7.54 m
Bottom Width 30.02 m
Length 295 m
Maximum height from Bed Level 56m
Slope - Upstream amp; Downstream
Hydrological Features of the Dam
Catchment Area 140 sq. km
Probable Maximum Flood 809.4 Cumecs
Method of estimating PMF  
Spillway
Location Middle of Masonry Dam
Type Ogee
Total Length 34.60 m
Crest Level 79.55 m
Design Capacity of Spillway 809.4 Cumecs
Number, type and size of gates 4, Radial Type, 8.69 X 5.18 m
Reservoir Features
Top Bank Level 85.645 m
Maximum Water Level 84.75 m
Full Reservoir Level 84.75 m
Maximum Drawdown Level 65.00 m
Dead Storage Capacity 10.52 Mm3
Gross Storage Capacity 106.25 Mm3
Freeboard over FRL  
Freeboard over MWL  
Area of reservoir at FRL  
Head Sluice
Sill level LBC +59.70 m, RBC +56.65 m

 

 

KALLADA IRRIGATION PROJECT


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Details of Dam Engineers
Chief Engineer Chief Engineer (Projects II)
Executive Engineer KIP RB Division, Kottarakkara
Assistant Executive Engineer KIP (RB) Subdivision No:2 Thenmala
Assistant Engineer KIP (RB) section No.3/2 Thenmala
 
General
State Kerala
District Kollam
River Kallada
Latitude 77°4'20" East
Longitude 8°57'00" North
Hydrology
Annual Rainfall 305cms
Catchment area of Reservoir 549sq. km
Reservoir
Name of Dam Kallada(Parappar)
Construction Started 1972
Completed May 1986
Type of Dam Masonry straight gravity with spillway
Length of Dam 335m
Length of Overflow section 42m
Length of non-overflow Section 393m
Maximum height above  
deepest foundation 85.35m
Top width of Dam 7.62m
Top of Dam (roadway) +118.87m
Top level of Parapet +119.87m
Full Reservoir Level +115.82m
Maximum Water Level +116.77m
Low Water Level +70.25m
Tail Water Level +69.65m
Gross Storage at FRL 524 Mm3
Gross Storage at MWL 536 Mm3
Live Storage at FRL 507 Mm3
Dead Storage Capacity 17.00Mm3
Water Spread area at FRL 23SqKm.
Type Gated Ogee Type
Type of Crest Gates and Size Radial 12.19m acute; 9.14m
Number of Crest Gates 3 Nos
Crest Level +106.68m
Head Over Crest 9.14m
Design Discharge 2830cumecs
Capacity of low level Outlets 3.75m diameter conduit with sill level + 70.25m amp; discharge capacity 60 cumecs
Auxiliary spillway without control gates
Location Right flank of Masonry Dam
Length 56.00m
Crest level +116.73m
Design discharge 689m3/sec
Type Labyrinth weir
Gates No gates, freeflow
Saddle Dam
Length 225.70m
Maximum Height 12.51m
Pick-up Weir
River Sluice 1 No. (2.44 size)acute; 1.83m
Length of Weir 120.69m
Crest Level +63.09m
Deepest bed level +57.50m
Width of roadway over weir 4.27m
Number of span 7
Maximum upstream flood Level +68.45m
Maximum D/s flood level +65.84m

 

 

MALANKARA DAM PROJECT


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Details of Dam Engineers
Chief Engineer Chief Engineer (Projects II)
Executive Engineer MVIP Division No. 3, Muvattupuzha
Assistant Executive Engineer MVIP Sub Division no. 1, Muttom
Assistant Engineer MVIP section 2/1, Muttom
 
General
State Kerala
District Idukki
Taluk/Village Thodupuzha/ Muttom
Latitude between 9°37 and 10°4; North
Longitude between 76° 26 and 76° 49, East
River Thodupuzha
(Tributary of Muvattupuzha)
Year of Completion 1994
Structural Features of Dam
Type Straight Gravity Rubble Masonry,
Earthen
Top Width Masonry 5.00m, Earth 6.90m
Bottom Width 16.70m
Length Masonry 254m, Earth 206m
Maximum Height Masonry 23.0m, Earth 12.00m
Slope upstream down stream  
Hydrological Features of Dam
Catchment Area 153.5sq.km
Probable Maximum Flood 1444.32 cumec
   
Spillway
Location  
Type Ogee with radial gate
Total length 62.1
Crest level +36.900m
Design capacity of spillway 1442.32 Cumecs
Number, type and sizes of gates 6 nos, Straight 7.6 x 6.40 m
Reservoir Features
Maximum water level +43.00m.
Full reservoir level +42.00m.
Minimum drawdown level +39.00m.
Dead storage capacity 27 Mm 3
Gross storage capacity 38.00 Mm 3
Freeboard over F.R.L 3

 

 

CHIMONI DAM PROJECT


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Details of Dam Engineers
Chief Engineer Chief Engineer (Projects II)
Executive Engineer Irrigation Division, Thrissur
Assistant Executive Engineer Chimoni Dam Project Sub Division, Echippara
Assistant Engineer Assistant Engineer, Chimoni dam Project Section No. 1, Echippara
 
General
State Kerala
District Thrissur
Taluk/Village Mukundapuram / Varandarappilly
Latitude 10°26'00" North
Longitude 76°28'00" East
River Karuvannur
Structural Features of Dam
Type Masonry Dam Earth Dam
Top Width 6.00M
Bottom Width 7.20M
Length 524.84M 686.50M
Maximum Height from Bed Level 52.82M 29.97M
Slope; Upstream Amp; Down Stream

U/S 1H to 10v upto + 72.50m 3H to 1v Vertical upto +81.20m; D/S; 0.85H to 1v upto + 50.00m

0.80H to 1v upto + 60.00m 2.5H to 1v

0.75H to 1v upto + 75.00m
Hydrological Features of Dam
Catchment Area 72.13 KM2
Probable Maximum Flood 1680Cumecs
Spillway  
Location  
Type Ogee overflow with radial crest gate
Total length +47.50M
Crest level +72.20M
Design capacity of spillway 1680Cumecs
Number, type and sizes of gates 4 Nos. Radial crest gate ,10 x 7.5m each
Reservoir Features
Top bank level +81.20M
Maximum water level +79.70M
Full reservoir level +40.00M
Minimum draw down level 6.75Mm3
Dead Storage capacity 6.75Mm3
Gross Storage capacity 179.39Mm3
Freeboard over F.R.L 1.50M
Freeboard over M.W.L 1.50M
Area of reservoir at F.R.L 10.10 Sq. KM
Head Sluice
Sill level +40.00M

 

 

PEECHI IRRIGATION PROJECT


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General
State Kerala
District Thrissur
Taluk/Village Thrissur/ Peechi
Latitude 10° 26' N
Longitude 76° 24' E
River Manali
Year of Completion 1958
Structural Features of the Dam
Type -IF more than one type give Straight, Gravity Rubble Masonry
Details of each type
Top Width  
4.27m
Bottom Width 34.45m
Length 213.36m
Maximum Height 40.85m
Slope- Upstream amp; Down stream 1in.18m amp; 1in 0.65m
Hydrological Features of the Dam
Catchment Area 18615.50 Ha
Probable Maximum Flood 368.119Cumecs
Spillway
Location  
Type Ogee overflow
Total length 40.20m
Crest level +76.20m
Design capacity of spillway 368.119 Cumecs
Number, type and sizes of gates 4 nos - Straight 10.05 x 3.05 m
Reservoir Features
Top bank Level 80.47m
Maximum water level +79.25m.
Full reservoir level +79.25m.
Minimum drawdown level +53.34m.
Dead storage capacity 2.266 Mm3
Gross storage capacity 110.436Mm3
Freeboard over F.R.L Nil
Reservoir Area at F.R.L 12.95 Sq..km
Head Sluice
Spill level 55.78m

 

 

VAZHANI IRRIGATION PROJECT


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Details of Dam Engineers
Chief Engineer Chief Engineer (Projects II)
Executive Engineer Irrigation Division, Thrissur
Assistant Executive Engineer Assistant Executive Engineer, Irrigation Sub-Division, Thalapilly
Assistant Engineer Assistant Engineer, Irrigation Section, Vazhani
 
General
State Kerala
District Thrissur
Taluk/Village Thalappilly
Latitude 10° 38' North
Longitude 76° 9' East
River Wadakkanchery
Year of Completion 1959
Structural Features of the Dam
Top Width 4.55M
Bottom Width 130m
Length 792.48m
Maximum Height from bed level 26.91m
Volume Content of Dam Body  
Slope- Upstream amp; Down stream U/S 2.5:1 to 4:1 from top to bottom
D/S 2: 1 to 3:1
Hydrological Features of the Dam
Catchment Area 20.48 Km2
Probable Maximum Flood 294.04M3
   
Spillway
Location South side of Dam
Type Ogee
Total length 26.48m
Crest level 59.81m
Design capacity of spillway 294.04 m3
  4Nos. Gate shutters
Number, type and sizes of gates 6.62x2.67m Screw gearing shutter
Regulating Gate : 0.90x 1.20m
  U/S of wall of 3.10m dia.
Reservoir Features
Top bank Level +65.53m
Maximum water level +62.48m
Full reservoir level +62.48m
Minimum drawdown level +39.62m
Dead storage capacity 1.471Mm3
Gross storage capacity 18.12Mm3
Freeboard over F.R.L 3.05m
Reservoir Area at F.R.L 1.82 Sq. km
Free board over M.W.L 3.05m

 

 

MALAMPUZHA IRRIGATION PROJECT


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Details of Dam Engineers
Chief Engineer Chief Engineer (Projects I)
Superintending Engineer Siruvani Project Circle Palakkad
Executive Engineer Irrigation Division Malampuzha
 
General
State Kerala
District Palakkad
Taluk/Village Palakkad, Malampuzha I
Latitude Between 10° 48' and 10° 55'
Longitude Between 76° 39' and 76° 42'
River Malampuzha
Year of Completion 1966
Structural Features of Dam
Type Straight Gravity Dam with Earthen Saddle
Top Width Masonry 4.87M
Earthen ndash; 222.20M
Bottom Width 21.336 M
Length Masonry ndash; 1626.71M
Earthen ndash; 222.20M
Maximum Height from Lowest Foundation 38.10 M
Slope - Upstream amp Downstream Masonry 1:8U/S, 0.7:1
0.6:1 D/S
Hydrological Features of Dam
Catchment Area 147.635Km2
Probable Maximum Flood 360 cumecs
Spillway
Location 110.49M Chainage
Type  
Total length 55M
Crest level 110.49M
Design capacity of spillway 367 Cumecs
Number, type and sizes of gates 4 nos. 10.97 x 4.57M
Reservoir Features
Top Bank Level 117.35M
Maximum Water Level 115.06M
Full Reservoir Level 115.06M
Minimum Drawdown Level 91.44M
Dead Storage Capacity 12.40 Mm3
Gross Storage Capacity 226 Mm3
Free board over F.R.L 2.29 m
Reservoir Area at F.R.L 22 Km2
Free board over M.W.L 2.50m

 

 

MANGALAM IRRIGATION PROJECT


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Details of Dam Engineers
Chief Engineer Chief Engineer (Projects I)
Superintending Engineer Siruvani Project Circle Palakkad
Executive Engineer Irrigation Division Malampuzha
 
General
State Kerala
District Palakkad
Taluk/Village Alathur, Kizhakkencherry 11
Latitude 10° 31’ North
Longitude 76° 32’ East
River Cherukunnam Puzha
Year of Completion 1966
Structural Features of the Dam
Type Gravity type masonry Dam and Earth
& dam of Rockfill Type
Top Width Masonry- 6.25m
& Earth Dam- 7.32m
Bottom Width 17.34m
Length Earthern- 895m.
& Masonry- 162m.
Maximum Height 16.92m.
& Earth work - 0.91 Milliom m 3
Volume Content of Dam Body Masonry - 0.007 Milliom m3
Slope- upstream & downstream 2:1 & 2.5:1
Hydrological Features of the Dam
Catchment Area 48.85 Km2
Probable Maximum Flood 8650 Cumecs
Spillway
Location Over masonry
Type Ogee type
Total length 162m
Crest Level +76.52m
Design Capacity of Spillway 8650 Cumecs
Number, Type and Sizes of Gates  
3 nos -2set; 1 8.69x 1.98 (3 Nos)
& 18.69 x1.38 (3 nos)
Reservoir Features
Top bank Level 80.95m
Maximum water level +77.88m.
Full reservoir level +77.88m.
Minimum drawdown level +64.00m.
Dead storage capacity 0.15Mm3
Gross storage capacity 25.344Mm3
Freeboard over F.R.L &
Reservoir Area at F.R.L 3.96 Sq. m
Head Sluice
Spill level +64

 

 

SIRUVANI DAM


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General
State Kerala
District Palakkad
Taluk/Village Sholayar Panchayath
Latitude 10° 58' 36" North
Longitude 76° 38' 32" East
River Siruvani
Year of Completion 1984
Structural Features of the Dam
Type Masonry straight gravity
Top Width 4.36m
Bottom Width 17.34m
Length 224m.
Maximum Height 57m
Volume Content of Dam Body 1,40,000m3.
Slope- Upstream amp Down Upstream- +829to860 1:10 and from 878
vertica stream Downstream 1:7
Hydrological Features of the Dam
Catchment Area 22.47 sq. Km.
Probable Maximum Flood 435 m3/sec
Spillway
Location  
Type Ogee type
Total length 49.40m
Crest level 878.50m.
Design capacity of spillway 435m3/sec.
Number, type and sizes of gates Nil
5. Reservoir Features
Top bank Level 883.00m
Maximum water level 881.5m.
Full reservoir level 878.50.
Minimum drawdown level +64.00m.
Dead storage capacity 7.08Mm3
Gross storage capacity 25.50Mm3
Reservoir Area at F.R.L 1.636 Sq. Km

 

 

KANHIRAPUZHA IRRIGATION PROJECT


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Details of Dam Engineers
Chief Engineer Chief Engineer (Projects I)
Superintending Engineer Siruvani Project Circle Palakkad
Executive Engineer KPIP Division Kanhirapuzha Division
 
General
State Kerala
District Palakkad
Taluk/Village Mannarkkad/ Kanhirapzha
Latitude 58' North
Longitude 72° 32' East
River Kanhirapuzha
Year of Completion 1983
Structural Features of Dam
Type Earth dam 1896m,
Masonry dam 231.60m
Top Width E-6.50m M- 4.30m
Bottom Width E-146.00m M- 28.95m
Length E-1896.40m M-231.60m
Maximum Height from bed 30.78m
Level  
Volume Content of Dam Body 1511000 M3
Slope- Upstream E-1: 2.5 to 1:3.50 M- 10:1
Down stream 1:2 to 1:2.50 10:6 to 10: 8.5
Hydrological Features of Dam
Catchment Area 70.00 Sq. Km
Probable Maximum Flood 504.00 cumecs
Spillway
Location Centre portion
Type Ogee type
Total length 36.6 m
Crest level + 92.5 m
Design capacity of spillway 512.50 cumecs
Number, type and Sizes of Gates Vertical lift gate 3x 12.20 x 4.5744 m
Reservoir Features
Top of dam 100.28 m
Maximum water level +97.535 m
Full reservoir level +97.535 m
Minimum drawdown level +77.400m
Dead storage capacity 1.6 Mm3
Gross storage capacity 70.8274 Mm3
Freeboard over F.R.L 2.745 m
Reservoir Area at F.R.L 4.65 m
Free board over M.W.L 2.745 m

 

 

KUTTIYADI IRRIGATION PROJECT


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General
State Kerala
District Kozhikode
Taluk/Village Koyilandy/Badagara
Latitude 11° 36' 45" North
Longitude 75° 49' 27" East
River Kuttiady
Year of Completion 1993
2. Structural Features of Dam
Type
(1)
(2)
Main dam gravity dam (Stone masonry)
13Nos. Earth dam
Top Width 11.13 m
Bottom Width 25.40m
Maximum Ht from lowest Foundation 35.36 m
3. Hydrological Features of Dam
Catchment Area 108. 78. sq.km
Probable Maximum Flood 1071.75 m3/sec
Method of Estimating PMF Ryversquo;s formula
4. Spillway
Location Latitude- 11° 36' 45" North
Longitude- 75° 49' 27" East
Type Ogee type
Total length 48.8
Crest level 38.44m
Design Capacity of Spillway 1444 m3/sec
Number, Type and Sizes of Gates 4Nos. Radial Shutter 12.2m x 7.62m
5. Reservoir Features
Top bank Level +46.88m
Maximum Water Level +44.41m
Full Reservoir Level 44.41m
Minimum Draw Down Level +25.52m
Dead Storage Capacity 7.08 Mm3
Gross Storage Capacity 120.52Mm3
Free board over F.R.L 2.44m
Reservoir Area at F.R.L 1052 hect.
Free board over M.W.L 2.44m
6. Head Sluice
Sill level 25.52 m

WALAYAR IRRIGATION PROJECT


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General
State Kerala
District Palakkad
Taluk/Village Palakkad / Pudussery East
Latitude 10° 43' and 10° 52' North
Longitude 76° 42' and 76° 50' East
River Walayar River
(Tributary of Bharathapuzha)
Structural Features of the Dam
Type Masonry dam flanked by
earthen dams
Top Width Masonry 3.6m
Bottom Width 21.60m
Length Masonry 150m, Earth 1329m
Maximum Height from bed level 28.105 m
Slope- Upstream amp; Downstream Earth 2.5:1
Masonry 2:1
Hydrological Features of the Dam
Catchment Area 106.35Sq. KM
Probable Maximum Flood 396.40Cumecs
Method of estimating PMF Current meter method
Spillway
Location Middle portion
Type Vertical lift type
Total length 42m
Crest level +199.95m
Design capacity of spillway 396.40 Cumecs
Number, type and sizes of gates 3 nos. size 12 x 3 m
Reservoir Features  
Top bank Level +205.00m
Maximum water level +203.00m
Full reservoir level +203.00m
Minimum drawdown level +182.575m
Dead storage capacity Nil
Gross storage capacity 18.40Mm3
Freeboard over F.R.L 2.04m
Free board over M.W.L 2.04m
Area of reservoir at F.R.L 2.59 Sq. Km
Head Sluice
Sill level +182.575m and +188.975m
Spill Channel Natural River

 

 

MEENKARA IRRIGATION PROJECT


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Details of Dam Engineers
Chief Engineer Chief Engineer (Projects I)
Superintending Engineer Siruvani Project Circle Palakkad
Executive Engineer Irrigation Division Chittoor
 
General
State Kerala
District Palakkad
Taluk/Village Muthalamada
Latitude 10° 38' North
Longitude 76° 48' East
River Meenkara
Year of Completion 1964
Structural Features of the Dam
Type Earth dam of zonal type
Top Width 7.0 m
Bottom Width 70.0m.
Length Earthen-964m.
Masonry- 30m.
Maximum Height 18.9m.
Volume Content of Dam Body Earth work - 0.91 Million m3
Masonry - 0.007 Million m3
Concrete - 0.00229 Million m3
Slope- Upstream amp; Down stream U/s slope 2:1,2.5:1,3:1
D/s slope 2:1,2.5:1,3:1
Hydrological Features of the Dam
Catchment Area 90.65 Km2
Probable Maximum Flood 472.60 cumecs
Spillway
Location Right end
Type Ogee type
Total length 30m.
Crest level 151.79 m
Design Capacity of Spillway 472.60 Cumecs
Number, Type and Sizes of Gates 2 nos,vertical lift type 12.19*4.57m
Reservoir Features
Maximum water level +156.36m.
Full reservoir level +156.36m.
Minimum drawdown level +143.64m.
Dead storage capacity 1.0M m3
Gross storage capacity 11.33 Mm3
Freeboard over F.R.L 2.48m
Reservoir Area at F.R.L 249.50 Ha
Free board over M.W.L 2.44m

CHULLIYAR DAM


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Details of Dam Engineers
Chief Engineer Chief Engineer (Projects I)
Superintending Engineer Siruvani Project Circle Palakkad
Executive Engineer Irrigation Division Chittoor
 
General
State Kerala
District Palakkad
Taluk/Village Palakkad / Pudussery East
Latitude 10° 43' and 10° 52' North
Longitude 76° 42' and 76° 50' East
River Walayar River
(Tributary of Bharathapuzha)
Structural Features of the Dam
Type Masonry dam flanked by
earthen dams
Top Width Masonry 3.6m
Bottom Width 21.60m
Length Masonry 150m, Earth 1329m
Maximum Height from bed level 28.105 m
Slope- Upstream amp; Downstream Earth 2.5:1
Masonry 2:1
Hydrological Features of the Dam
Catchment Area 106.35Sq. KM
Probable Maximum Flood 396.40Cumecs
Method of estimating PMF Current meter method
Spillway
Location Middle portion
Type Vertical lift type
Total length 42m
Crest level +199.95m
Design capacity of spillway 396.40 Cumecs
Number, type and sizes of gates 3 nos. size 12 x 3 m
Reservoir Features  
Top bank Level +205.00m
Maximum water level +203.00m
Full reservoir level +203.00m
Minimum drawdown level +182.575m
Dead storage capacity Nil
Gross storage capacity 18.40Mm3
Freeboard over F.R.L 2.04m
Free board over M.W.L 2.04m
Area of reservoir at F.R.L 2.59 Sq. Km
Head Sluice
Sill level +182.575m and +188.975m
Spill Channel Natural River

 

 

POTHUNDY IRRIGATION PROJECT


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Details of Dam Engineers
Chief Engineer Chief Engineer (Projects I)
Superintending Engineer Siruvani Project Circle Palakkad
Executive Engineer Irrigation Division Malampuzha
 
General
State Kerala
District Palakkad
Taluk/ Village Chittur
Latitude 10° 32.5' North
Longitude 70° 36.5' E
River Ayilur (Tributary of Bharathapuzha )
Structural Features of the Dam
Type Homogenous Earth Dam
Top width 7.32 m
Bottom width 133.8 m
Length 1680 m
Maximum height from bed level 32.61 m
Slope - upstream amp; downstream 2:1, 2:1
Hydrological Features of the Dam
Catchment Area 31 sq.kms
Probable Maximum Flood 680 cumecs
Method of estimating PMF Current Meter Method
Spillway
Location Right Flank of Dam
Type Gravity Type with Ogee Curve
Total length 40 m
Crest Level +104.09 m
Design Capacity of Spillway 682.44 cumecs
Number, Type, amp; Size of Gates 3, (12.19X 4.11), Level shutters
Reservoir Features  
Top bank level +110.642 m
Maximum water level +108.204 m
Full reservoir level +108.204 m
Minimum draw down level 91.44 m
Dead storage capacity 7.014 Mm3
Gross storage capacity 50.914 Mm3
Freeboard over FRL 2.42 m
Area of reservoir at FRL 2.75 sq.kms
6. Head Sluice
Sillevel +91.44m

PAMBA IRRIGATION PROJECT


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General
State KERALA
District PATHANAMTHITTA
Taluk / Village Ranni Taluk / Vadasserikkara Village
Latitude 9° 20' North
Longitude 76° 53' East
River River Kakkad, tributary of PAMBA
Type A central spillway portion flanked by bulkhead sections on either side.
Bulkheads are straight gravity type random rubble masonry dams with coursed rubble facing.
Spillway section is made of Random Rubble Masonry in cement mortar with ashlar ogee portion
and R.C.C upstream face.
Top Width 5.48 M
Bottom Width 13.25 M
Length 115.22 M
Maximum Height from bed level 16.76 M
Slope upstream and down stream 1.Bulk Head on either sides Upstream face - 1:10 from 18.29m 21.62m and Vertical from 21.64m top Down stream face - 1:1.1 from 18.28m to 21.64m,0.65:1 from 21.64m to 24.69m,0.4 :1 from 24.69M to 30.78m, and vertical from 30.78 to 36.88m
2. Spill way portion
Upstream Face ndash; same as that of bulk head Down Stream face ndash;Ogee profile is based on the model studies conducted at KERI,Peechi. Transition between the bowall and the floor is provided as a stilling basin with a curved floor of radius 6.70M
Hydrological Features of the Dam
Catchment Area 287 Sq.Km
Probable Maximum Flood (PMF) 1280 cumecs
Method of Estimating PMF By Ryve's formula
Spillway
Location At the centre of the barrage
Type Random Rubble in cement mortar with
Ashlar Ogee facing and R.C.C upstream face
Total Length 64.31 M
Crest Level 29.26 M
Design Capacity of spill way 1287 cumecs
Number, type and size of gates 5 nos. Vertical Lift type ndash;
size 10.70M x 5.50M
Reservoir Features
Top Bank Level 36.83M
Maximum Water Level 35.35 M
Full Reservoir Level 34.62 M
Minimum draw down level 29.26 M
Dead Storage Capacity  
Gross storage capacity 8 Mm3
Free board over F R L 2.21 M
Free board over M W L 1.48 M
Area of Reservoir at F R L 1.08 Sq.Km
6. Head Sluice
Spill way 31.09 M
Spill Channel No spill channel
Instrumentation Nil

PAZHASSI IRRIGATION PROJECT


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Details of Dam Engineers
Chief Engineer Chief Engineer (Projects I)
Superintending Engineer Project Circle kannur
Executive Engineer PYIP Division II Kannur
 
General
District KANNUR
Taluk / Village Thalassery
Latitude 11° 5939' 00" North
Longitude 75° 3739' 00" East
River Valapattanam river
Structural Features of the Dam
Type Masonry barrage.
Top Width (Bulk Head) 5.49 M
Bottom Width (-do-) 14.02 M
Length 245 M
Maximum Height from bed level 18.29 M
Slope :Upstream Vertical
Down stream 2:1.
Hydrological Features of the Dam
Catchment Area 640 Sq.Km
Probable Maximum Flood (PMF) 3500 cumecs
Method of Estimating PMF Unit Hydrograph
Spillway
Location Kuiloor
Type Masonry
Total Length 138 M
Crest Level 13.72 M
Design Capacity of spill way 3500 cumecs
Number, type and size of gates 16 nos. Radial (6.1 x 5.18 M size)
Reservoir Features
Top Bank Level 27.52M
Maximum Water Level 27.44 M
Full Reservoir Level 26.52 M
Minimum draw down level 24.66 M
Dead Storage Capacity Nil
Gross storage capacity 97.5 Mm3
Free board over F R L 1 M
Free board over M W L 1.48 M
Area of Reservoir at F R L 650 Ha
Head Sluice
Spill way 24.66 M
Spill Channel Nil
Instrumentation Electrically operated radial

PERIYAR VALLEY IRRIGATION PROJECT


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General
State KERALA
District ERNAKULAM
Taluk / Village Kothamangalam
Latitude 10° 0839' 16" North
Longitude 76° 4039" 00" East
River Periyar
Structural Features of the Dam
Type ndash; If more than one type give details
of each type
Masonry barrage.
Top Width (pillars) 2.44 m-12 pillars side span, 3.96 m-2
Bottom Width (-do-) 3.04m-12 pillar side span, 3.96m-2
Length 210.92 M
Height of barrage 11.79 M
Slope- Upstream; Down stream  
Hydrological Features of the Dam
Catchments Area Total 3048 sq.km,Free catchment
938 sq.km.
Probable Maximum Flood (PMF) 7079 cumecs
Method of Estimating PMF  
Spillway
Location  
Type  
Total Length 173.7 M
Crest Level Central span-24.59m, side span-25.81
Design Capacity of spill way 7370cumecs
Number, type and size of gates 15nos. ventways provided with electrically operated
framed steel shutters with vertical lifting
arrangements. Size of gates: 3nos. -
9.14*10.36m.12nos - 12.19m*9.14m
Reservoir Features
Top Bank Level 36.43 M
Maximum Water Level 34.95 M
Full Reservoir Level 34.95 M
Minimum draw down level  
Dead Storage Capacity  
Gross storage capacity 169.79 mm3
Free board over F R L 1.48 M
Free board over M W L 1.48 M
Area of Reservoir at F R L 16.4 Sq.Km
Head Sluice
Spill way  
Spill Channel Nil
Instrumentation Nil