Dam · Mpumalanga · South Africa · DWS
Heyshope Dam
100.0% full
Total capacity
445 Mm³
River
Assegaai
Basin
Inkomati
Primary use
water supply
Operator
DWS
Coordinates
-26.867°S, 30.800°E
Last updated
2026-08-31
Current fill
100.0%vs 7 days ago
-0.1%losing
vs 1 year ago
N/A7-day trend
→stable
Weekly storage
Fill history — multi-year
About this dam
Dam height
64 m
Year built
1986
Dam type
Earthfill
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. -26.867, 30.800 · Open in Google Maps
About Heyshope Dam
As of August 31, 2026, Heyshope Dam is filled to 100.0% of its total capacity, holding roughly 445 Mm³ of water out of a maximum 445 Mm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.1 pts).
Across the readings we hold for Heyshope Dam — 14 data points between May 31, 2026 and August 31, 2026 — the level has ranged from a low of 99.8% (August 10, 2026) to a high of 101.4% (May 31, 2026).
The dam at Heyshope Dam stands 64 m tall and is a earthfill dam and was completed in 1986. It is operated by DWS primarily for water supply. It lies within the Inkomati basin at 26.867°S, 30.800°E.
Key facts
- Current fill level
- 100.0%
- Water stored
- 445 Mm³
- Total capacity
- 445 Mm³
- 7-day change
- ▼ 0.1 pts
- Primary use
- Water supply
- River
- Assegaai
- River basin
- Inkomati
- Dam height
- 64 m
- Year completed
- 1986
- Operator
- DWS
- Coordinates
- 26.867°S, 30.800°E
- Last updated
- August 31, 2026
Recent readings
| Date | Fill level | Volume (Mm³) |
|---|---|---|
| 31 Aug 2026 | 100.0% | 445 |
| 24 Aug 2026 | 100.1% | 445 |
| 17 Aug 2026 | 100.1% | 445 |
| 10 Aug 2026 | 99.8% | 444 |
| 3 Aug 2026 | 99.9% | 445 |
| 27 Jul 2026 | 100.2% | 446 |
| 29 Jun 2026 | 100.9% | 449 |
| 22 Jun 2026 | 100.9% | 449 |
| 16 Jun 2026 | 101.1% | 450 |
| 9 Jun 2026 | 101.1% | 450 |
| 8 Jun 2026 | 101.2% | 450 |
| 7 Jun 2026 | 101.2% | 450 |
Nearby reservoirs
See also: South Africa dam levels, explained — how the DWS Weekly State of Dams report becomes the national and provincial figures.