Dam · Mpumalanga · South Africa · DWS
Grootdraai Dam
99.2% full
Total capacity
349.8 Mm³
River
Vaal River
Basin
Unknown
Primary use
water supply
Operator
DWS South Africa
Coordinates
-26.919°S, 29.295°E
Last updated
2026-06-29
Current fill
99.2%vs 7 days ago
-0.2%losing
vs 1 year ago
N/A7-day trend
→stable
Weekly storage
Fill history — multi-year
About this dam
Data source
official
Storage data: Department of Water and Sanitation (DWS) Weekly State of Dams report, South Africa.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -26.919, 29.295 · Open in Google Maps
About Grootdraai Dam
As of June 29, 2026, Grootdraai Dam is filled to 99.2% of its total capacity, holding roughly 347 Mm³ of water out of a maximum 350 Mm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.2 pts).
Across the readings we hold for Grootdraai Dam — 8 data points between May 31, 2026 and June 29, 2026 — the level has ranged from a low of 99.2% (June 29, 2026) to a high of 100.0% (May 31, 2026).
It is operated by DWS South Africa primarily for water supply. It lies within the Unknown basin at 26.919°S, 29.295°E.
Key facts
- Current fill level
- 99.2%
- Water stored
- 347 Mm³
- Total capacity
- 350 Mm³
- 7-day change
- ▼ 0.2 pts
- Primary use
- Water supply
- River
- Vaal River
- River basin
- Unknown
- Operator
- DWS South Africa
- Coordinates
- 26.919°S, 29.295°E
- Last updated
- June 29, 2026
Recent readings
| Date | Fill level | Volume (Mm³) |
|---|---|---|
| 29 Jun 2026 | 99.2% | 347 |
| 22 Jun 2026 | 99.4% | 348 |
| 16 Jun 2026 | 99.6% | 348 |
| 9 Jun 2026 | 99.6% | 348 |
| 8 Jun 2026 | 99.9% | 350 |
| 7 Jun 2026 | 99.9% | 350 |
| 3 Jun 2026 | 99.9% | 350 |
| 31 May 2026 | 100.0% | 350 |
Frequently asked questions
What is the current water level of Grootdraai Dam?
As of June 29, 2026, Grootdraai Dam is at 99.2% of its capacity, holding approximately 347 Mm³ of water, according to DWS South Africa data.
Is Grootdraai Dam reservoir full?
Grootdraai Dam is essentially full, sitting at 99.2% of capacity as of June 29, 2026.
Is the water level at Grootdraai Dam rising or falling?
The level at Grootdraai Dam has been broadly stable over the latest week on record (-0.2 points).
How much water can Grootdraai Dam hold?
Grootdraai Dam has a total capacity of 350 Mm³.
Where is Grootdraai Dam reservoir located?
Grootdraai Dam is located in Mpumalanga, South Africa, within the Unknown basin (coordinates 26.919°S, 29.295°E).
What is Grootdraai Dam used for?
Grootdraai Dam is used primarily for water supply, and is managed by DWS South Africa.
Nearby reservoirs
See also: South Africa dam levels, explained — how the DWS Weekly State of Dams report becomes the national and provincial figures.