Reservoir · Nagaland · India · CWC · EASTERN region
Doyang
Doyang HEP Dam
69.0% full
Gross capacity
18.9 TMC (535 MCM)
Live capacity
18.9 TMC (535 MCM)
River
Doyang
Basin
Brahmaputra
Primary use
hydropower
Operator
NEEPCO
Coordinates
26.420°N, 94.350°E
Last updated
2026-09-10
Capacity in TMC
Doyang Dam has a gross capacity of 18.9 TMC (535 MCM); it is currently at 69% full, holding 13.0 TMC (369 MCM).
- Gross capacity
- 18.9 TMC (535 MCM)
- Live capacity
- 18.9 TMC (535 MCM)
- Current storage
- 13.0 TMC (369 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
69.0%vs 7 days ago
+3.5%gaining
vs 1 year ago
+0.8%year-over-year
7-day trend
↑rising
Weekly storage
Fill history — multi-year
About this reservoir
Data source
official
Storage data: CWC (Central Water Commission) Weekly Storage Bulletin, India. CWC region: EASTERN.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 26.420, 94.350 · Open in Google Maps
About Doyang HEP Dam
As of September 10, 2026, Doyang HEP Dam is filled to 69.0% of its total capacity, holding 13.0 TMC (369 MCM) of a gross 18.9 TMC (535 MCM). At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has risen by 3.5 percentage points, and it sits close to where it was a year earlier.
Across the readings we hold for Doyang HEP Dam — 72 data points between April 3, 2025 and September 10, 2026 — the level has ranged from a low of 31.4% (May 22, 2025) to a high of 69.9% (September 18, 2025). On average the reservoir is fullest around October and at its lowest around May.
It is operated by NEEPCO primarily for hydroelectric power. It lies within the Brahmaputra basin at 26.420°N, 94.350°E.
Key facts
- Current fill level
- 69.0%
- Water stored
- 13.0 TMC (369 MCM)
- Total capacity
- 18.9 TMC (535 MCM)
- 7-day change
- ▲ 3.5 pts
- Year-on-year
- ▲ 0.8 pts
- Primary use
- Hydroelectric power
- River
- Doyang
- River basin
- Brahmaputra
- Operator
- NEEPCO
- Coordinates
- 26.420°N, 94.350°E
- Last updated
- September 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Sep 2026 | 69.0% | 369 |
| 3 Sep 2026 | 65.4% | 350 |
| 27 Aug 2026 | 66.0% | 353 |
| 20 Aug 2026 | 63.0% | 337 |
| 13 Aug 2026 | 66.7% | 357 |
| 6 Aug 2026 | 69.0% | 369 |
| 30 Jul 2026 | 67.5% | 361 |
| 23 Jul 2026 | 63.9% | 342 |
| 16 Jul 2026 | 43.4% | 232 |
| 9 Jul 2026 | 41.5% | 222 |
| 2 Jul 2026 | 33.5% | 179 |
| 25 Jun 2026 | 32.1% | 172 |