Copious pre-monsoon rain fails to up water levels in dams

By Times Of India on 08 Jun 2018 | read
BENGALURU: Heavy pre-monsoon showers may have brought respite from the heat but they haven’t had much impact on water levels in reservoirs.
Of the 13 major reservoirs in the state, only two — Supa in Uttara Kannada and Narayanapura in Vijayapura — have live storage (water which can be used) of 33% and 39% of the total capacity. In all other dams, the figure stands below 20%. This applies to KRS, Kabini and Harangi reservoirs in the Cauvery basin, on which Bengaluru and Mysuru districts are dependent for drinking water.

However, the situation is better than last year. Data show that the water quantity is slightly higher than the live storage recorded during the corresponding period of 2017.

GM Srinivasa Reddy, director, Karnataka State Natural Disaster Monitoring Centre (KSNDMC), said Karnataka is in desperate need of a good monsoon so that its dams are full and drinking water needs are met. “As is usually the case, pre-monsoon showers don’t cause a major increase in water levels. This year, despite the state having received 40% of annual rainfall in the form of pre-monsoon showers, water levels are up in only a few dams. The rise is normally witnessed in July, August and September, and we are hoping for a good monsoon,” he said.

A senior scientist at KSNDMC said a bad monsoon can trigger a water crisis later in the year. “The meteorological department has predicted a normal monsoon. It is expected to get stronger in the next few days, with thundershowers likely in most places in coastal Karnataka and interior Karnataka. Let’s hope the same trend continuous so that reservoirs are filled,” he added.


Dam Current live storage Total capacity

Linganamakki: 20 151

Supa: 47 145

Varahi: 5 31

Harangi: 0 8

Hemavathi: 4 35

KRS: 4 45

Kabini: 2 15

Bhadra: 3 63

Tungabhadra:4 100

Ghataprabha: 4 48

Malaprabha: 1 34

Almatti: 17 119

Narayanapura: 10 26

Source: KSNDMC; figures in tmc ft; data as on June 6, 2018