Project Main Features

Consultants:                                              

M/s Pakistan Hydro Consultants as a Joint venture of 5 engineering Firms                Head Regulator

(3 Foreigner and 2 local)

Completion Date of feasibility               1992

Detailed design, environmental

Studies and preparation of pre- 

Qualification and tender documents

Complection date of the Project           2003-2004

 

Standard Bays

Barrage

 

The Barrage located 7 km downstream of Tarbela Dam, provides a pond which re-regulates the daily discharge from Tarbela by diverting the flow into the Power Channel. The principal features include 20 No. standard bays, 8 No. under sluices and 8 No. head regulator bays in addition to rim embankments, fuse plug and dividing island.

The Barrage can pass the design flood of 18,700 cumecs, equivalent to the flood of record, through the standard bays and under sluices at the normal pond level of El. 340 m. The fuse plug has been provided to pass the extreme flood up to the capacity of Tarbela’s spillway and tunnels equaling 46,200 cumecs.

Barrage Metric Units British Units
 Normal pond level 340 m SPD 1115.5 ft
Max. (Survival) pond level 341.5m SPD 1120.4 ft
Min Pond Storage level 334.5 m SPD 1097.4 ft
Live storage capacity 50 MCM 40535.70 Acre ft

Design flood discharge

capacity          

18750 cumecs 662,200 cusecs
Survival flood capacity 46,200 cumecs 1,631,600 cusecs
Standard Bays 20 (18.3 x 8.3 m) 8 (60 x 11.5 ft)
Head regulator 8 (18.3 x 7.5 m) 8(60 x 25 ft)

 

 

In Pictures

M/s UNDP, Govt. of Pakistan & the World Bank