ANNEXURE – I TARAKARAMA THIRTHA SAGARAM RESERVOIR PROJECT SALIENT FEATURES Location 1. Name of the project : Tarakarama Thirtha Sagaram Reservoir 2. Location of the project : Kotagandredu village Gurla mandal Vizianagaram district Andhra Pradesh 3. Name of the river : Champavathi 4. Longitude : 83º – 26' – 32" E 5. Latitude : 18º – 13' – 44" N 6. Water availability : 5.80 TMC 7. Catchment area : 1,028.23 sq.km. Barrage 1. Maximum Flood Discharge : 2034 cumec 2. FRL : +42.50 m 3. MWL : +43.50 m 4. Crest Level : +39.00 m 5. Length of barrage : 184.00 m 6. No. of vents : 12 No. 7. Scour vents : 1 No. Head Regulator 1. Discharge : 34.12 cumec 2. No. of vents : 3 Nos. 3. Sill Level : +39.00 m 4. Angle with barrage : 90° Afflux Bunds 1. With revised TBL : + 45.50 m 2. Left : 0.71 km 3. Right : 0.76 km Diversion Canal (Tunnel and Transitions from km. 9.20 to km.11.600) 1. Length (including tunnel) : 13.428 km 2. Bed Level (at head) : + 39.80 m 3. FSL : + 42.20 m 4. TBL : + 42.95 m 5. Bed Width : 18.40 m / 17.60 m 6. Surface Fall : 1 in 10,000 / 1 in 9,000 7. Side Slopes : 1.5 :1 / 2:1 8. FSD : 2.40 m 9. Discharge : 34.15 cumec 10. Length of tunnel : 1.025 km 11. Diameter : 6.00 m (horse shoe type) 12. Entrance side from km.9.438 : 412 m to km.9.850 13. Exit side from km.10.875 to : 35 km km.10.910 Kumili Reservoir 1. FRL : + 38.00 m 2. TBL : + 42.50 m 3. MDDL : + 31.00 m 4. Top Width : 6.00 m 5. Maximum Bund Height : 19.25 m 6. Capacity (net) : 2.700 TMC 7. No. of Sluices : 2 Nos. 8. Sill Level – Right : + 31.00 m - Left : + 31.20 m 9. Length of Earth Bund : 9.243 km including 3 dykes (a) Earth dam : 5.42 km (b) Dyke I : 0.89 km (c) Dyke II : 1.104 km (d) Dyke III : 1.50 km 10. Ayacut : 24,710 acre Surplus Weir 1. MFD : 493 cumec 2. Length of Weir : 157.00 m 3. Crest Level : + 38.00 m Right Main Canal 1. Length : 19.275 km 2. Sill Level : + 31.00 m 3. FSL : + 32.20 m 4. Bed Width : 5.10 m 5. Discharge : 3.55 cumec 6. Ayacut : 14,786 acre 7. CM & CD works : 45 Nos. (tentative) Left Main Canal 1. Length : 6.10 km 2. Sill Level : + 31.20 m 3. FSL : + 32.20 m 4. Bed Width : 4.10 m 5. Discharge : 2.77 cumec 6. Ayacut : 9,924 acre 7. CM & CD works : 16 Nos. (tentative) Village-wise Ayacut Benefitted In Vizianagaram District Name of the mandal Ayacut (acre) No. of villages Denkada 4,783 20 Bhogapuram 6,606 17 Pusapatirega 5,149 12 Existing ayacut for 8,172 stabilization under Kumili Channel System and under tanks Total 24,710 49 A provision of 0.162 TMC is made towards drinking water supply to en route villages. .