Capacity |
6 x 200 MW |
|
Location |
State |
Sikkim |
District |
North District |
|
River |
Teesta |
|
Contract Duration |
54 Months |
|
Contract Value |
INR 2498.23 Crores (US$ 384.73 Millions) (1 US$=INR 65) |
|
Project Status |
Work in progress. Expected commissioning June,2016 |
|
Technical Features |
Gross Head |
797m |
Net Head |
780.33 m |
|
Rated Discharge per Unit |
21.17 m3/s |
|
Civil Works |
Head Race Tunnel |
7.5m, Modified Horse Shoe, 12.9 Km |
Construction Adits for HRT |
6.5m x 6.5m, 1.3 Km |
|
Other construction Adits |
6.5m x 6.5m, 2.2 Km |
|
Tail Race Tunnel |
8.0m x 8.0m, 1.3 Km long |
|
TRT Manifolds |
4.8 x 8.2 m, 488m long |
|
Main Access Tunnel |
8.0m x 8.0m, 541m long |
|
Cable Tunnel |
8.0m x 8.0m, 663m long |
|
Other additional tunnels |
Various Dia., 0.9 Km long |
|
Surge Shaft |
13.0m diameter, 158m high |
|
Vertical Pressure Shaft |
2 Nos., 644m each, 4.0m Dia. |
|
Inclined Pressure Shaft |
2 Nos., 469m each, 4.0m Dia. |
|
Horizontal Pressure Shaft |
663m, 4.0m/3.25/2.5m Dia. |
|
Underground Power House |
214.5m x 21.3m x 45.0m |
|
Transformer Cavern |
181.63m x 15.8m x 31m |
|
Infra Works |
Roads |
28 Km |
Permanent Colony |
25000 sq. ft. |
|
Office Buildings |
15000 sq. ft. |
|
Bridges |
1 permanent concrete bridge and 3 nos. temporary bridges. |
|
Temporary colonies |
120000 sq. ft. |
|
HM Works |
Pressure Shaft Steel Lining |
11764 MT |
Intake Trash Rack |
7.0m x 2.30m, 36 Panels |
|
Fixed Wheel Gate for Intake |
7.5m x 7.5m, 1 No. |
|
Radial Gate for Spillway Tunnel-1 |
12.0m x 7.0m, 1 No. |
|
Fixed Wheel Gate for Spillway Tunnel-1 |
12.0m x 9.9m, 1 No. |
|
Radial Gate for Spillway Tunnel-2 |
11.0m x 14.0m, 1 No. |
|
Fixed Wheel Gate for Spillway Tunnel-2 |
11.0m x 13.3m, 1 No. |
|
Radial Gate for Chute Spillway |
11.0m x 14.5m, 1 No. |
|
Fixed Wheel Gate for Chute Spillway |
11.0mx17.85m, 1 No. |
|
Radial Gate for Flushing Tunnel |
9.0m x 9.3m, 1 No. |
|
Fixed Wheel Gate for Flushing Tunnel |
9.0m x 11.6m, 1 No. |
|
Radial Gate for Silt Flushing |
2.0m x 1.5m, 2 No. |
|
Bonnet type slide gate for Silt Flushing Tunnel |
2.0m x 1.5m, 2 No. |
|
Fixed Wheel Tail Race Gates |
4.8m x 6.9m, 3 No. |
|
Fixed Wheel Gate for De-silting |
5.5m x 7.5m, 4 Nos. |
|
Fixed wheel gate for Diversion Tunnel |
6.0m x10.30 m, 2 No. |
|
Hinge Gate for the Inspection of Desilting Chamber |
2.5m x 2.5m, 2 No. |
|
Hinge Gate for the Inspection of HRT |
3.5mx3.5m, 2 No. |
|
Hinged type Adit Gate for Abandoned Adit |
2.5mx2.0m , 1 No. |
|
Manhole for Adit 3 and 4 of HRT |
1m diameter, 2 No. |
|
Butterfly Valve for Surge Shaft |
4m diameter, 2 No. |
Note: EM – Electro mechanical and HM - Hydro-mechanical