CANA BRAVA
Goiás · TOCANTINS
Capacity
2,300 hm³
Coordinates
-13.404°N, 48.142°W
Operator
ONS
94.0% full
Current fill
94.0%vs 7 days ago
+0.7%gaining
vs 1 year ago
N/A7-day trend
→stable
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 2,300 hm³ |
| Usable capacity | 393.87 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | TOCANTINS |
| Province | Goiás |
| River basin | TOCANTINS |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -13.404, -48.142 · Open in Google Maps
About CANA BRAVA
As of October 7, 2026, CANA BRAVA is filled to 94.0% of its total capacity, holding roughly 370 hm³ of water out of a maximum 2,300 hm³. At this level the reservoir is high. Of that total, about 394 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 CANA BRAVA — 52 data points between October 24, 2025 and October 7, 2026 — the level has ranged from a low of 69.0% (April 24, 2026) to a high of 96.5% (September 4, 2026). On average the reservoir is fullest around September and at its lowest around April.
It is operated by ONS primarily for hydroelectric power. It lies within the TOCANTINS basin at 13.404°S, 48.142°W.
Key facts
- Current fill level
- 94.0%
- Water stored
- 370 hm³
- Total capacity
- 2,300 hm³
- Usable capacity
- 394 hm³
- 7-day change
- ▲ 0.7 pts
- Primary use
- Hydroelectric power
- River
- TOCANTINS
- River basin
- TOCANTINS
- Operator
- ONS
- Coordinates
- 13.404°S, 48.142°W
- Last updated
- October 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Oct 2026 | 94.0% | 370 |
| 2 Oct 2026 | 93.3% | 368 |
| 25 Sep 2026 | 92.9% | 366 |
| 18 Sep 2026 | 94.7% | 373 |
| 11 Sep 2026 | 93.3% | 368 |
| 4 Sep 2026 | 96.5% | 380 |
| 28 Aug 2026 | 92.6% | 365 |
| 21 Aug 2026 | 91.2% | 359 |
| 14 Aug 2026 | 92.2% | 363 |
| 7 Aug 2026 | 92.2% | 363 |
| 31 Jul 2026 | 92.2% | 363 |
| 24 Jul 2026 | 90.1% | 355 |