Tailrace Channel and Satiguda Reservoir
The Kolab water after generation passes through a tailrace channel of 900 Meters long with bed width 25 Meters. This tailrace channel discharges the flow in to a small stream Sati nalla across which an earthen dam with a central spillway is constructed to impound a reservoir known as” Satiguda Pond”. The Satiguda dam is a homogeneous earth dam of length 1144.15 Meters and maximum height is 16.84 Meters. The spillway is of central open type of 74 Meters long and the maximum height from foundation is 22.50 Meters.
| Upper Kolab (Water Conductor System) | |
|---|---|
| Main Tunnel | |
| Type | Open Horse Shoe Type |
| Length | 3924 Mts. |
| Diameter | 6 Mts. Finished |
| Size of Intake Gate | 5.0 x 6.0 Mts. |
| Design Discharge | 120 Cumecs |
| Length of Head Race Channel | 109.78 Mts. |
| Surge Tank | |
| Type | Simple Type |
| Diameter | 15.0 Mts. |
| Depth | 145.0 Mts. |
| Upper and Lower Expansion Galleries | (a) Diameter – 8.0 Mts. (b) Length – 80.0 Mts. |
| Penstock Tunnel | |
| No. of Penstocks | 02 Nos. |
| Length | 391.0 Mts. |
| Diameter | 5.0 Mts. |
| Type | Finish Steel Line |
| Penstock | |
| No. of Penstock Tunnel | 04 Nos. |
| Length | 537 Mts. |
| Diameter | 3.5 Mts. |
| Length of Terminal Tunnel | 65 Mts. |
| Satiguda Reservoir Dam | |
| Type | Homogeneous Earth Dam |
| Length | 942.5 Mts. |
| Height | 16.7 Mts. |
| Top Level | 597.2 Mts. |
| Catchment Area | 18.15 Sq. Km. |
| Maximum Water Level | 595.2 Mts. |
| Flood Reservoir Level | 593.5 Mts. |
| Gross Pondage | 1.746 M. Cumt |
| Live Pondage | 1.519 M. Cumt. |
| Valve House | |
| No of B.F Valve | 4 Nos. |
| Total Length of Valve House | 56000 mm |
