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| 1. Name of Reservoir | Harangi |  |
| 2. Location | Located at Hudgur village. | |
| Latitude | 12o 29' 30" N | |
| Longitude | 75o 54' 20" E | |
Taluk |
Somwarpet |
|
| District | Coorg | |
| Sub-basin | C-1 Upper Cauvery | |
| 3. Catchment area (in sq.kms) |
419.58 |
4. Design yield at 50% dependability : (in TMC) |
39.30 |
5. Storage (in TMC) |
|
i) Gross |
8.50 |
| ii) Dead | 0.427 |
| iii) Live | 8.073 |
| iv) Carry over | -NIL- |
6. Reservoir
Evaporation
|
1.459 |
7. i) Filling period |
From June to November |
| ii) Depletion period | From December to May |
8. Submersion (in acres) |
|
| i) Forest area | 2,739.00 |
| ii) Cultivable area | 283.00 |
| iii) Fallow lands (Dry) | 570.00 |
| iv) Wet lands | 1,123.00 |
| TOTAL | 4,715.00 |
v) No.of villages /Hamlets |
13 Nos. |
9. Levels Of Storage |
|
i)Full Reservoir Level (FRL) |
RL 2,859.00 ft. |
| ii) Minimum drawn
down level (MDDL) |
RL 2,788.66 ft. |
iii) Dead Storage Level |
RS 2,788.00 ft. |
iv) Sill level
of canal sluice |
RL 2,778.00 ft. |
b) Right Bank Canal Sluice |
Takes off from 11.28 km of Left Bank at
RL 2839.67 |
v) Sill level of river sluice |
RL 2,730.00 ft. |
10. Silt charge per year (Mcft/sq.km of catchment area) |
|
| i) Designed | 0.009 |
ii) Actual |
Not assessed |
11. Ayacut (in acres) |
|
| i) Left Bank Canal | 30.141 |
| ii) Right Bank Canal | 73,254 |
| iii) Periyapatna Lift Canal | 30,000 |
| iv) Somwarpet Lift Canal | 1,500 |
| TOTAL | 1,34,895 |
12. General characteristics of soil in the Command Area |
Soil is predominantly gravel mixed with red soil on the upper reaches and black cotton soil on the lower reaches of the canal. |
13. Power Generation |
|
a) Installed power in MW |
Nil |
b) Annual Power Generation in MU |
Nil |
| II. (i) Particulars of Dam: | |
| 1. Type of Dam | Masonry Dam with Central spillway and non-overflow section and Earthen Dam on either flank. |
| 2. Length of Dam (in ft.) | 2,775 |
| 3. Height of Dam (in ft) above River bed level |
164 |
| 4. Length of Spillway (in ft) | 220 |
| 5. Capacity of spillway | 1,20,163 Cusecs |
| 6. Outlets (Canals & River) | |
| Sl. No | Left Bank canal at Dam | Combined Regulator at 11.28 km of left bank canal | Periyapatna Lift canal takes off @ Ch. 3.80 km of RBC | Somwarpet Lift Canal takes off @ Ch. 12.20 km of LBC | River
|
|
| Left Bank Canal | Right Bank Canal | |||||
| a) Number | 6 | 1 | 4 |
- |
- |
3 |
| b) Type | 6'x10' Rectangular | 8'6"x11' Rectangular | 8'6"x11' Rectangular | - |
- |
6'x12' Rectangular |
c) Capacity in Cusecs |
1956 | 456 | 1500 | |
|
11,770 |
| II. (ii) Description of Canals |
|
| (Main & Branch Canals) | |
| 1.(a)Length of Left Bank Canal ( in kms) | 153 |
| b)Off take point of Somwarpet Lift canal | 12.20 km of Left Bank canal |
| Length of Lift Canal (in kms) | 10 |
| Length of raising main (in mtrs) | 145 |
| Lift involved (in mtrs) | 43 |
| Number of pumps proposed | 3+ 1( One Standby) |
| Horse power required | 600HP |
| Power required |
1000 KVA & 50 KVA |
| 2.(a) Length of Right Bank Canal (in kms) | 137.50 |
| (b)Off take point of periyapatna Lift canal | 3.8 Km of Right Bank Canal |
| Length of Lift Canal (in kms) | 50 |
| Length of raising main (in mtrs) | 2 x 260 |
| Lift involved (in mtrs) | 47.0 |
| Number of pumps proposed | 4+2 (Two Standby) |
| Horse Power Required | 8,400 HP |
| Power required | 6.5 MW |
| (c)Length of Branch canals under Right Bank canal (in kms) | 103.5 |
| 3. Whether perennial / one seasonal / Two Seasonal | Two seasonal |
| 4. Whether lined or unlined | Lined canal up to 11.28 km (bifurcation point of Left Bank Canal and Right Bank Canal) unlined in remaining system. |
| 5.Authorised Head Capacity | |
| Left Bank Canal (at head up to 11.28 Km) | 1956 cusecs |
| Left Bank Canal beyond 11.28 km | 456 cusecs |
| Right Bank Canal (off take 11.28 km of Left Bank Canal | 1,500 cusecs |
| Somwarpet Lift Canal | 42 cusecs |
| Periyapatna Lift Canal | 324 Cusecs |