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Odisha Hydro Power Corporation Ltd.

A Gold rated State PSU( A Govt. of Odisha Undertaking )

Powering Green Energy
Sh Hemant Sharma, IAS
Commissioner-cum- Secretary to Govt.,
Deptt of Energy, Chairman-cum-Managing Director,
OHPC Ltd.

Upper Kolab (Water Conducter System)

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.

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 Lenght of Valve House 56000mm