Reservoir · Tamil Nadu · India · Tamil Nadu WRD
Ponnaiyar
Gross capacity
0.11 TMC (3 MCM)
Live capacity
0.11 TMC (3 MCM)
River
Ponnaniyar
Basin
Cauvery
Primary use
irrigation
Capacity in TMC
Ponnaiyar Dam has a gross capacity of 0.11 TMC (3 MCM).
- Gross capacity
- 0.11 TMC (3 MCM)
- Live capacity
- 0.11 TMC (3 MCM)
TMC is thousand million cubic feet, the unit used in Indian water reporting. 1 TMC = 28.3168 million cubic metres (MCM). Figures are converted from Tamil Nadu WRD, which publishes million cubic metres. The percentage is labelled live or gross only when the stored volume matches that capacity.
Drought context
India drought →Rainfall, last 3 months
Near normal
SPI-3 −0.56 · to 21 Oct 2026
Drought figures describe the ground around the reservoir, not its storage. Sources: Copernicus GDO (SPI-3).
Fill history — multi-year
About this reservoir
Data source
official
Storage data: Tamil Nadu WRD.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 10.580°N, 78.260°E · Open in Google Maps
On the map
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About Ponnaiyar
It is operated by Tamil Nadu Water Resources Dept primarily for irrigation. It lies within the Cauvery basin at 10.580°N, 78.260°E.
Key facts
- Total capacity
- 0.11 TMC (3 MCM)
- Primary use
- Irrigation
- River
- Ponnaniyar
- River basin
- Cauvery
- Operator
- Tamil Nadu Water Resources Dept
- Coordinates
- 10.580°N, 78.260°E
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 26 Jun 2026 | 21.3% | 1 |