According to officials, floodwater posing serious threat to Trimu headworks, which might be swept away by the raging floodwater. The authorities had already preparations to break Athara Hazari dyke if needed to reduce water pressure at the headworks.
According to reports after the breach, floodwater has entered in Athara Hazari town.
The high flood leaving traces of widespread destruction in central Punjab was rushing towards Trimu on Tuesday night, submerging over 1,400 villages and posing threat to its five adjoining districts.
Trimu headworks, which have a design capacity of 645,000 cusecs will likely to receive 600,000 cusecs of water today.
The water body will face real threat after 48 hours when the water level will be feared to rise between 700,000 and 800,000 cusecs.
The districts of Multan, Muzaffargarh, Khanewal, Jhang and Toba Tek Singh could be directly hit by the flood. An alert had been issued to the administration to take precautionary measures to minimise threats to life and property.
Punjab has already declared emergency in 21 districts directly hit by the floods in the river Chenab and Jhelum.