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1.  Name of the Project VANIVILASA SAGAR PROJECT
2.  Location  
     a .  Near by village

Located across Vedavathi river near Marikanive,

     b.  Taluk

Hiriyur Taluk

     c. District Chitradurga District
    d.  Latitude

13 - 16’-0’’ N

    e.  Longitude 75 - 16’ -20’’ E
3.  Access Pucca road 20 Kms. From Hiriyur to Marikanive and 33 Kms. From Hosadurga

4.   Catchment area ( in sq km)

An Independent catchment area 1554 Sq.Km (600 sq.miles)

  II. HYDROLOGY

 

   1.  Total Catchment area 5,374.00 Sq Km (2075 Sq.Mls)
   2.  Independent catchment area 1,554.00 Sq Km (6000 Sq.Mls)
   3.  Intercepted catchemnt area 3,820.00 Sq.Km (1475 Sq.Mls)
   4.  Mean Annual precipitation 600.00mm600.00mm600.00mm
   5.  Mean Annual run-off at dam  site 294.49 MM3 (0.04Tmc)
   6.  Max. flood discharge estimated ((1.00 Cumecs (35000 Cusecs)

  III. RESERVOIR

 

     1.  Full reservoir level 652.28M  (2140 ft)
     2.  Storage capacity at RL652,28 850.30 MM3 (30 TMC)
     3.  Water spread area RL 652.28 8,763.15 Ha (21654Acres)
     4..  Dead Storage level 630.950 M (2070 ft)
     5..  Dead storage capacity 47.80 MM3 ( 1.875 TMC)
     6.  Live storage capacity 802.50 MM3 (28.125 TMC)
    7 . Utilisation contemplated ( as  per original project report) 148.32 MM3 (5.25 TMC )
    8.  Allocation of water  as per KWDT award   8.20 TMC

5.  Nature of catchment

Upper most reaches consists of Hilly terrain with a rainfall of 3912 mm.  Lower reaches in arid region with rainfall of 457 mm.

6.  Climate

Moderate

7.  Annual mean temperature

310 C

8.  Mean annual precipitation

600mm (24’’) highly erratic

9.  Annual yield at damsite

Yield varies from minimum of 48 MCUM to a maximum 455 M.cum.

10.Geology of Dam foundation

The rock in gorge consists of alternative layers of Hematite quartzite and chlorite schist dipping steeply to the East at an angle of 700

11.Gross Storage capacity

850 M.cum (30.00 TMC)

12.Live Storage above cill of sluice

802.5 M.Cum  (28.125 TMC)

13.Dead storage at Rl 60

47.8 M.cum (1.875 TMC)

14.Lowest foundation level

6.09M/606.56 MSL-(20’1990.05 Ms)

15.Lowest river bed level

0.0’ M/612.66 MSL

0.0’ or 2010.05 MSL

16.Cill level

18.28M/630.95 MSL

(60’/2070.05 MSL)

17.No.of sluices

2 Vents of 1.67 m x 3.90 m

(5’6’’x 12’9’’)

One slucie for irrigation and one for power generation.  Stop long gates are provided for both the sluices.

18.Pen stock

2 Nos. of penstock pipes with bulk head are provided.

19.Full reservoir  level

39.62 M or 652.28 MSL ( 130’or 2140.05 MSL)

20.Top level of Dam

43.28 M or 65.94 MSL ( 142’ or 2152.05 MSL)

21.Maximum area of water Spread

8763 Ha (21,645 Acres)

22.Length of dam

405.4 M (1330’)

23.Maximum height of dam above foundation level

49.37 m (162’)

24.Height Of Dam Above

43.28M (142’)

25.Top width of dam

4.57 m (15’)

26.Designed flood discharge

991 Cumecs ( 35,000 cusecs)

27.Villages affected

32 villages with their lands and portion of lands of 18 other villages.

28.Surplussing arrangements

A waste weir is located at 2.4 km (1   miles) to north of dam on a natural  ground by cutting the saddle length of weir 143( 468’) depth of spillage 1.82 M (6’) 

29.KATRIKENAHALLY ANICUT

      a. Length of anicut

      b. Base width at foundationlevel

     c.  Height of Anicut

     d.  Gates

          RBC 5 Nos

          LBC 5 Nos.

 

98.00 M (322’)

7M (23’)

5.20 M (17’0’’)

 

1.53 x 1.82 M ( 5’x 6’)

1.53 x 1.82 M ( 5’ x 6’)

 

30.Length of Canals

     i) High level Canal

    ii) Left Bank Canal

   iii) Right Bank Canal

 

9.60 Km ( 6.00 miles)

48.00 KM ( 30.0 miles)

46.40 KM (20.0 miles)

31.SALIENT FEATURES OF CANAL SYSTEM:

  1. RIGHT BANK CANAL

     a. Designed discharge

     b. length of canal

     c. Irrigable command area

  2.LEFT BANK CANAL

    a. Designed discharge

    b. length of canal

    c. Irrigable command area

  3. HIGH LEVEL CANAL

    a. Designed discharge

    b. length of canal

    c. Irrigable command area

 

 

8.85 cumecs

46.4 Km

5629.18 Ha

 

8.85 cumecs

48.0 Km

6058.82 Ha

 

8.825 Cumecs

9.60 Km

446.82 Ha