The project is proposed across Champavathi river to irrigate an extent of 24,710 acres of ayacut including stabilization of 8172 acres of existing wet ayacut under Kumili channel system. The work was entrusted to M/s CR 18G-BSCPL (JV) vide agt. No.1 SE/2005-06, dt:24-5-2007 for Rs.181.50 Crores. The project will benefit for 49 villages of 3 Mandals i.e. Poosapatirega, Denkada and Bhogapuram of Vizianagaram District. Besides this, the scheme provides drinking water facility to the enroute villages of the canals with 0.162 TMC of water and provides drinking water facility to the Vizianagaram municipality with 0.48 TMC of water from dead storage of reservoir and proposed separate link canal in Right Main Canal at suitable location to provide water supply to the existing ayacut of 5,203 acres under Denkada Anicut System.
As per the Government instructions issued vide its Memo No 1303/M&MI CA-1(2)/2013 dated 30-05-2013, a portion of work costing Rs. 51.30 Crores i.e. from 2.200 to KM 5.749 of main earth dam and Dyke-1 from KM 0.00 to KM 0.890 with its allied works deleted from the original agency with mutual consent and supplemental agreement was concluded by the SE, TTPR Circle, Vizianagaram vide supplemental agreement No. 1SE dated 03-06-2013 for Rs.130.20 Cr. As per the instructions of higher authorities, for the deleted portion of work, tenders were called for and the work was entrusted to M/s SCL Infratech Ltd., Hyderabad under package-21A of EPC turnkey system vide Agreement No.1SE Dt.18-10-2013 for Rs.172.23 Crores with an agreement period of 18 Months i.e., up to 17-04-2015. Proposals has been sent to Government for Revised Administrative Approval for Rs.475.00 Cr.
Name of the Project | taraka rama thirtha sagaram reservoir |
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Location of the Project | Kotagandredu Village, |
Gurla Mandal, | |
Vizianagaram District | |
Name of the River | Champavathi |
Longitude | 83° 26' 32'' E |
Latitude | 18° 13' 44'' N |
Water Availability | 5.80 TMC |
Catchment area | 1,028.23 Sq. KM |
Barrage | |
Maximum Flood Discharge | 2034 Cumecs |
FRL | +42.50 M |
MWL | +43.50 M |
Crest Level | +39.00 M |
Length of the Barrage | 184.00 M |
No. of Vents | 12 |
No. Scour Vents | 1 |
Head Regulator | |
Discharge | 34.12 Cumecs |
No. of Vents | 3 |
Sill Level | +41.00 M |
Angle with Barrage | 90° |
Afflux Bunds | |
TBL | +45.50 M |
Left | 0.71 KM |
Right | 0.76 KM |
Diversion Canal (Including Tunnel and Transitions from KM 9.438 to KM 10.910) | |
Length (Including Tunnel) | 13.428 KM |
Bed Level (at Head) | +39.80 M |
FSL | +42.20 M |
TBL | +42.95 M |
Bed Width | 18.40 M/ 17.60 M |
Surface Fall | 1 in 10,000/ 1 in 9,000 |
Side Slopes | 1.5 : 1 / 2 : 1 |
FSD | 2.40 M |
Discharge | 34.15 Cumecs |
Length of Tunnel | 1.025 KM |
CM & CD Works | 28 Nos |
Diameter | 6.00 M ( Horse shoe type) |
Entrance Length | 412 M ( Cut & Cover- 381M + Transition -31 M) |
Exit Length | 35 M ( Transition) |
Kumili Reservoir | |
FRL | +38.00 M |
TBL | +42.50 M |
MDDL | +31.00 M |
Top Width | 6.00 M |
Maxim mum Bund Height | 21.50 M |
Capacity (Net) | 2.700 TMC |
No. of Sluices | 2 |
Sill Level | Right :+31.00 M |
Left : +31.20 M | |
Length of Earth Bund including 3 Dykes | 9.243 KM |
a. Earth Dam | 5.749 KM |
b. Dyke-1 | 0.890 KM |
c. Dyke-2 | 1.104 KM |
d. Dyke-3 | 1.500 KM |
Ayacut | 24,710 Acres or 10,000 Hectares |
Surplus Weir | |
MFD | 493 Cumecs |
Length of the Weir | 157.00 M |
Crest Level | +38.00 M |
Right Main Canal | |
Length | 19.275 KM |
Sill Level | +31.00 M |
FSL | +32.20 M |
Bed Width | 5.10 M |
Discharge | 3.55 Cumecs |
Ayacut | 14,786 Acres |
CM & CD Works | 45 (Tentative) |
Left Main Canal | |
Length | 6.100 KM |
Sill Level | +31.20 M |
FSL | +32.20 M |
Bed Width | 4.10 M |
Discharge | 2.77 Cumecs |
Ayacut | 9,924Acres |
CM & CD Works | 16 (Tentitive) |