Lahore: In what can be termed as a significant development for water storage in the country, Tarbela Dam today filled to its maximum water conservation level i.e. 1550 feet above mean sea level. Consequently, the water reservoir attained its maximum live storage capacity of 6.45 million acre feet (MAF).
According to the details, the position of the river inflows and outflows at Tarbela, Mangla and Chashma along with the reservoirs levels and the barrages today is as Rivers: Indus at Tarbela-Inflows 145,000 cusecs and Outflows 115,600 cusecs, Kabul at Nowshera: Inflows 30,700 cusecs and Outflows 30,700 cusecs, Jhelum at Mangla- Inflows 23,700 cusecs and Outflows 10,000 cusecs, Chenab at Marala- Inflows 46,300 cusecs and Outflows 16,900 cusecs.
Barrages: Jinnah-Inflows 212,400 cusecs and Outflows 204,900 cusecs, Chashma -Inflows 213,100 cusecs and Outflows 205,000 cusecs, Taunsa- Inflows 252,500 cusecs and Outflows 224,600 cusecs, Panjnad- Inflows 24,500 cusecs and Outflows 9,100, Guddu- Inflows 178,100 cusecs and Outflows 151,600 cusecs, Sukkur- Inflows 154,900 cusecs and Outflows 100,300 cusecs, Kotri- Inflows 56,922 cusecs and Outflows 17,057 cusecs.
Reservoirs’ Level and Storage: Tarbela – dead level 1380 feet, present level 1550 feet, maximum level 1550 feet, live storage 6.45 million acre feet (MAF) Mangla – dead level 1040 feet, present level 1232.8 feet, maximum level 1242 feet, live storage 6.67 MAF, Chashma – dead level 637 feet, present level 647.2 feet, maximum level 649 feet, live storage 0.208 MAF.
The inflows and outflows of River Indus at Tarbela and Chashma, River Kabul at Nowshera and River Jhelum at Mangla have been reflected as mean flows of 24 hours, whereas the other flows have been gauged at 6.00 a.m.