Wapda says Tarbela Dam is safe after a rock collapse at the T-5 site

The Water and Power Development Authority (Wapda) has told the public that Tarbela Dam is not in danger after part of a rock face gave way at the site of its fifth extension project on Monday. In a press release issued on Tuesday, the authority said engineers, the project contractor and its own officials all agree that “there is no threat” to the main dam or any of its critical structures.

What happened

On Monday a rock mass collapsed at the construction site of the Tarbela Fifth Extension Project, known as T-5. Water surged into nearby work areas. An emergency was declared, construction was suspended and workers were told to move to safer ground. Nobody was reported killed.

The detail the public most wants, how much damage was done and what caused it, has not been given. Wapda says possible causes were “discussed in detail” at a meeting at the site, but it has not named one.

What Wapda says it has done

Step	Detail from the Wapda statement
Site visit	Chairman Muhammad Saeed went to the project on Monday and Tuesday and saw the intake structure, tunnel, power house and other key points
Briefing	Consultants, the contractor and project management briefed him on the situation and the measures taken
Assessment	All three teams agreed there is no threat to the main dam or critical structures “as of now”
Orders	A detailed report from consultants “at the earliest”, immediate remedial work, a contingency plan to minimise delay, and a departmental inquiry
Ministry	The Water Resources Ministry asked for an initial assessment, which Wapda has submitted; Minister Mian Muhammad Mueen Watto was briefed

Wapda engineers and technicians spent Tuesday repairing the damaged parts of the project, officials said.

What local officials say

Swabi Deputy Commissioner Nasarullah Khan said the situation was “completely under control” and that nobody should worry. He and the Haripur deputy commissioner are handling the matter under a joint plan. He said the rise in the Indus River’s flow downstream had been authorised by Wapda’s technical team under safety and technical measures. The statement does not say how much extra water was released. An official at the site also asked people not to believe unconfirmed reports and to rely only on official statements.

Why this matters

Tarbela is one of the country’s most important pieces of water and power infrastructure, on the Indus in Khyber Pakhtunkhwa. A rumour about its safety travels fast, particularly in the villages downstream, which is why a clear public statement from Wapda and the district administration matters. At the same time, a statement from the authority that is building and operating the project is not an independent safety assessment. The detailed report the chairman has asked for, and the departmental inquiry, are the documents that would show what happened.

There is also a cost question. The fifth extension is meant to add generating capacity, and any long suspension of work means delay and, usually, higher cost. Wapda has said it wants a contingency plan to limit that delay, but it has not said how long work will stay stopped.

Pakistan has several large water projects under way. We reported on the progress of Diamer-Bhasha Dam and on the cost estimates for the dams programme earlier this month. An incident at a long-established dam site is a reminder that construction near large rock faces carries risks that need close monitoring.

What we do not know

• The cause of the collapse, which is the subject of the inquiry.
• Whether any equipment or tunnels were damaged, and how badly.
• When work will resume and what the delay will cost.
• Whether the report from consultants will be made public.

What to watch

The next things to look for are the consultants’ report, any findings from the departmental inquiry, a date for the resumption of construction, and whether the Ministry of Water Resources briefs parliament or its standing committee on the incident.