Grootdraai Dam Level Today
On the Vaal River, Mpumalanga. Full supply capacity 350 million m3. Current as of 2026-10-19.
This dam is over 100% of its full supply capacity - the level officially counted as "100% full". The extra water is held in flood-reserve storage above the normal full level, so water is usually spilling over the spillway or being released through the sluice gates to protect the dam wall, and rivers downstream can run high. It is the opposite of a shortage: the dam is full and overflowing.
Recent trend: Over the last 5 weeks, Grootdraai Dam has risen 3.5 percentage points - about 0.7% per week.
Grootdraai Dam Level History
Showing 19 weekly readings from 2025-10-13 to 2026-10-19.
About Grootdraai Dam
Grootdraai sits upstream of the Vaal Dam on the Vaal River and is a critical source for Sasol's Secunda complex and Eskom's Mpumalanga power stations. It feeds into the Integrated Vaal River System that supplies Gauteng.
Grootdraai Dam has a full supply capacity of 349.7 million cubic metres (Mm3) and sits on the Vaal River in Mpumalanga. At 100.4% full, the dam currently holds roughly 351.1 Mm3 of water, equivalent to about 351119 million litres.
Which Towns and Cities Does Grootdraai Dam Supply?
Grootdraai Dam supplies water to Secunda and Standerton.
Key supply areas: Secunda, Standerton.
Other Dams on the Vaal River
Grootdraai Dam is one of 5 dams we track on the Vaal River. Sorted by capacity:
| Dam | Province | Cap (Mm3) | Now |
|---|---|---|---|
| Vaal Dam | Free State | 2561 | 107.4% |
| Bloemhof Dam | Free State | 1243 | 96.7% |
| Vaal Barrage | Free State | 54 | 97.8% |
| Vaalharts Weir | Northern Cape | 51 | 76.5% |
Grootdraai Dam - Frequently Asked Questions
Is Grootdraai Dam running dry?
No, Grootdraai Dam is not running dry. At 100.4% full, the dam has adequate water reserves.
When was Grootdraai Dam last full?
Based on available weekly data, Grootdraai Dam most recently reached 99%+ full around 2026-10-19.
What cities does Grootdraai Dam supply?
Grootdraai Dam supplies water to Secunda and Standerton. Grootdraai sits upstream of the Vaal Dam on the Vaal River and is a critical source for Sasol's Secunda complex and Eskom's Mpumalanga power stations. It feeds into the Integrated Vaal River System that supplies Gauteng.
What river is Grootdraai Dam on?
Grootdraai Dam is on the Vaal River in Mpumalanga. Other dams on the Vaal River include Vaal Dam, Bloemhof Dam, Vaal Barrage.
How is the Grootdraai Dam level trending?
Grootdraai Dam is currently at 100.4% full. The level is stable, with a change of only 0.2% from last week. Compared to this time last year (94.2%), the dam is in a significantly better position.
Other Dams in Mpumalanga
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