Tarbela 4th Extension Hydropower Project

Tarbela 4th Extension Hydropower Project


Tarbela Dam (on Indus River), District Swabi, Khyber Pakhtunkhwa

Salient Features  tarbela
  • Modification of Tunnel 3 & 4 Intakes
  • Construction of Lw Level Outlet Gates
  • Installed Capacity 1,410 MW (Three Units 470 MW each)
  • Annual Energy 3,840 GWh

Execution by

Consultants JV of Mott MacDonalds Ltd. UK, Coyne-et-Bellier, France with MM Pakistan & ACE Pakistan as Sub-consultants
  • Civil Work Contract awarded to M/s Sinohydro Group Ltd. China (SHGL).
  • E&M Work Contract awarded to M/s Voith Hydro China & Voith Hydro GmbH Germany (Consortium).
Commencement Date Oct 28,2013
Completion Date Actual 10th March 2018 (Unit #17) (Civil Works of Power House completed)  
Financial Status (Rs. Million) Local Foreign Total
Approved PC-I Cost (16.08.2012) 17,736.000 65,865.000 83,601.000
PSDP Allocation 2019-2020 11,340.000 3,000.000 14,340.000


  • Inauguration of the Tarbela 4th Extension Hydropower Project took place on March 10, 2018
  • 1st Revised PC-I submitted to MoWR on 07.11.2018 is under process of approval.
  • The Engineer has issued TOC-4 for Employer’s taking over of the powerhouse. Civil Works are complete.
  • World Bank has categorically declared the project as one of the best completed within cost & time.
  • T3 & T4 Intake Raising Works are dependent upon safe reservoir level and shut-downs.
  • Raised structures are scheduled to be completed by June 30, 2020 during current lean/ construction period.
  • Permanent concrete plugging of both tunnels (3 & 4) and removal of Intakes Coffer Dam is scheduled by June 30, 2021.

Overall Physical Progress: 98.43%

Incharge of the Project

Mr. Muhammad Ali
Chief Engineer/Project Director
Tarbela 4th Ext Project
Contact No. 0092-938-281175
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