Reservoir · Tamil Nadu · India · CWC · SOUTHERN region
Mettur (Stanley Reservoir)
Mettur Dam / Stanley Reservoir
38.5% full
Total capacity
2,647 hm³
Live storage
2,585 hm³
River
Cauvery
Basin
Cauvery
Primary use
irrigation
Operator
TNPWD
Coordinates
11.783°N, 77.800°E
Last updated
2026-07-30
Current fill
38.5%vs 7 days ago
-0.7%losing
vs 1 year ago
N/A7-day trend
→stable
Weekly storage
Fill history — multi-year
About this reservoir
Data source
official
Storage data: CWC (Central Water Commission) Weekly Storage Bulletin, India. CWC region: SOUTHERN.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 11.783, 77.800 · Open in Google Maps
About Mettur Dam / Stanley Reservoir
As of July 30, 2026, Mettur Dam / Stanley Reservoir is filled to 38.5% of its total capacity, holding roughly 1,019 hm³ of water out of a maximum 2,647 hm³. At this level the reservoir is low. Of that total, about 2,585 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (-0.7 pts).
Across the readings we hold for Mettur Dam / Stanley Reservoir — 7 data points between May 31, 2026 and July 30, 2026 — the level has ranged from a low of 38.5% (July 30, 2026) to a high of 80.9% (May 31, 2026).
It is operated by TNPWD primarily for irrigation. It lies within the Cauvery basin at 11.783°N, 77.800°E.
Key facts
- Current fill level
- 38.5%
- Water stored
- 1,019 hm³
- Total capacity
- 2,647 hm³
- Usable capacity
- 2,585 hm³
- 7-day change
- ▼ 0.7 pts
- Primary use
- Irrigation
- River
- Cauvery
- River basin
- Cauvery
- Operator
- TNPWD
- Coordinates
- 11.783°N, 77.800°E
- Last updated
- July 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Jul 2026 | 38.5% | 1,019 |
| 23 Jul 2026 | 39.2% | 1,039 |
| 16 Jul 2026 | 40.2% | 1,065 |
| 9 Jul 2026 | 40.9% | 1,082 |
| 2 Jul 2026 | 42.8% | 1,132 |
| 25 Jun 2026 | 44.1% | 1,167 |
| 31 May 2026 | 80.9% | 2,142 |
Frequently asked questions
What is the current water level of Mettur Dam / Stanley Reservoir?
As of July 30, 2026, Mettur Dam / Stanley Reservoir is at 38.5% of its capacity, holding approximately 1,019 hm³ of water, according to CWC data.
Is Mettur Dam / Stanley Reservoir reservoir full?
No. As of July 30, 2026, Mettur Dam / Stanley Reservoir is low at 38.5% of its capacity, so it is not full.
Is the water level at Mettur Dam / Stanley Reservoir rising or falling?
The level at Mettur Dam / Stanley Reservoir has been broadly stable over the latest week on record (-0.7 points).
How much water can Mettur Dam / Stanley Reservoir hold?
Mettur Dam / Stanley Reservoir has a total capacity of 2,647 hm³, of which about 2,585 hm³ is usable storage.
Where is Mettur Dam / Stanley Reservoir reservoir located?
Mettur Dam / Stanley Reservoir is located in Tamil Nadu, India, within the Cauvery basin (coordinates 11.783°N, 77.800°E).
What is Mettur Dam / Stanley Reservoir used for?
Mettur Dam / Stanley Reservoir is used primarily for irrigation, and is managed by TNPWD.