Reservoir · Karnataka · India · CWC · SOUTHERN region
Tattihalla
21.3% full
Gross capacity
8.8 TMC (249 MCM)
Live capacity
8.8 TMC (249 MCM)
Primary use
multiple
Operator
CWC
Coordinates
15.117°N, 74.785°E
Last updated
2026-09-10
Capacity in TMC
Tattihalla Dam has a gross capacity of 8.8 TMC (249 MCM); it is currently at 21% full, holding 1.9 TMC (53 MCM).
- Gross capacity
- 8.8 TMC (249 MCM)
- Live capacity
- 8.8 TMC (249 MCM)
- Current storage
- 1.9 TMC (53 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 the Central Water Commission bulletin, which publishes million cubic metres.
Current fill
21.3%vs 7 days ago
+1.1%gaining
vs 1 year ago
-38.5%year-over-year
7-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. 15.117, 74.785 · Open in Google Maps
About Tattihalla
As of September 10, 2026, Tattihalla is filled to 21.3% of its total capacity, holding 1.9 TMC (53 MCM) of a gross 8.8 TMC (249 MCM). At this level the reservoir is low.
Over the most recent week on record the fill level has held broadly steady (+1.1 pts), and it is 38.5 points below its level on the same date a year earlier.
Across the readings we hold for Tattihalla — 166 data points between June 5, 2023 and September 10, 2026 — the level has ranged from a low of 0.0% (June 5, 2023) to a high of 88.0% (September 5, 2024). On average the reservoir is fullest around August and at its lowest around March.
It is operated by CWC primarily for multiple purposes.
Key facts
- Current fill level
- 21.3%
- Water stored
- 1.9 TMC (53 MCM)
- Total capacity
- 8.8 TMC (249 MCM)
- 7-day change
- ▲ 1.1 pts
- Year-on-year
- ▼ 38.5 pts
- Primary use
- Multipurpose
- Operator
- CWC
- Coordinates
- 15.117°N, 74.785°E
- Last updated
- September 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Sep 2026 | 21.3% | 53 |
| 3 Sep 2026 | 20.2% | 50 |
| 27 Aug 2026 | 19.6% | 49 |
| 20 Aug 2026 | 18.4% | 46 |
| 13 Aug 2026 | 16.7% | 42 |
| 6 Aug 2026 | 13.6% | 34 |
| 30 Jul 2026 | 8.0% | 20 |
| 23 Jul 2026 | 5.8% | 15 |
| 16 Jul 2026 | 5.4% | 13 |
| 9 Jul 2026 | 4.7% | 12 |
| 2 Jul 2026 | 3.4% | 9 |
| 25 Jun 2026 | 3.3% | 8 |