A 70-year-old system under stress
The Tungabhadra dam, a project spanning Karnataka, Andhra Pradesh, and Telangana, has been operational since the 1950s. Over the years, heavy silt accumulation has significantly reduced its storage capacity, impacting its effectiveness. The dam continues to play a crucial role in irrigating millions of acres of agricultural land across the three states.
- ▪The Tungabhadra dam was commissioned in the early 1950s and has been a vital inter-State project.
- ▪It irrigates over 16.38 lakh acres of land across Karnataka, Andhra Pradesh, and Telangana.
- ▪Silt accumulation has reduced the dam's effective storage capacity from 133 tmcft to 105.788 tmcft.
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| Original publisher | The Hindu — Top |
| Canonical URL | https://www.thehindu.com/news/national/karnataka/a-70-year-old-system-under-stress/article70987116.ece |
| Publication time | Sat, 16 May 2026 19:02:01 +0530 |
| Retrieval time | 2026-05-16T13:40:18.659Z |
| Last seen | 2026-05-16T13:40:18.659Z |
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Opening excerpt (first ~120 words) tap to expand
The Tungabhadra dam, an inter-State project involving Karnataka, Andhra Pradesh and Telangana, was commissioned in the early 1950s, while the crest gates were installed in 1955. The project irrigates over 16.38 lakh acres of land – 9.26 lakh acres in Karnataka, 6.25 lakh acres in Andhra Pradesh and 87,000 acres in Telangana.At the Full Reservoir Level (FRL) of 1,633 feet, the Tungabhadra Reservoir was originally designed to store around 133 tmcft of water. However, decades of heavy silt accumulation, estimated at nearly 33 tmcft at the rate of around 0.5 tmcft annually, have reduced its effective storage capacity to 105.788 tmcft. The spillway is designed to discharge up to 6.5 lakh cusecs.
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