Water Conditions
Live dam levels & Vaal system gate alerts
DWS data updated 2026-06-01·Updated every Monday
National Average
96.9%
217 dams · 9 provinces
Total Capacity
29 334 Mm³
combined full storage
Dams Above 80%
192
of 217 monitored
Vaal Dam Gates
CLOSED
Season reporting closed
Vaal System — Gate & Discharge Operations
Season ClosedVaal Dam
Gates ClosedStatusAll gates closed
Last gate closed19 May 2026 · 12:00
Current releaseValve discharge only
Flow rate≈ 16.7 m³/s
Dam level106.1%
Safe conditions for bank anglers downstream. Season reporting closed — gates will remain shut until next significant rainfall event.
Bloemhof Dam
ControlledStatusControlled release
Current discharge250 m³/s
Last notice19 May 2026
Previous700 m³/s (12 May)
Dam level104.6%
Discharge stepping down steadily since January. Exercise caution near banks on the Vaal below Bloemhof — elevated but stable and falling.
Angler Safety — Vaal River Sections
Safe
Vaal Dam → Barrage
Valve only · ~16.7 m³/s · Ideal for bank fishing
Caution
Barrage → Bloemhof
250 m³/s controlled · Elevated but stable
Caution
Below Bloemhof → Confluence
Downstream release · Stay clear of deep channels
Safe
Harts River
Normal levels · No active operations
Dam Levels — Western Cape
Weighted avg
71.2%
Total FSC
1869 Mm³
Dams shown
44
Above 80%
33
Below 50%
4
Overflow >100%Full 80–100%Good 60–80%Low 30–60%Critical <30%
| Dam ↕ | River | FSC (Mm³) ↓ | This Week ↕ | Last Wk | Last Yr | vs Last Yr |
|---|---|---|---|---|---|---|
| Theewaterskloof Dam | Riviersonderend River | 479,3 | 73.3% | 72.2% | 60.4% | ▲ 12.9% |
| Brandvlei Dam | Lower Brandvlei River | 286,1 | 45.7% | 45% | 43.6% | ▲ 2.1% |
| Kwaggaskloof Dam | Doorn River | 169,5 | 45.1% | 44.4% | 43.1% | ▲ 2% |
| Voelvlei Dam | Voelvlei River | 158,6 | 59.6% | 59.1% | 58.3% | ▲ 1.3% |
| Berg River Dam | Berg River | 127,1 | 75.9% | 77.1% | 67.2% | ▲ 8.7% |
| Clanwilliam Dam | Olifants River | 122,5 | 81.9% | 82.4% | 28% | ▲ 53.9% |
| Wemmershoek Dam | Wemmers River | 58,8 | 96.7% | 95.3% | 53.2% | ▲ 43.5% |
| Floriskraal Dam | Buffels River | 46,7 | 101%OVF | 101.6% | 55.7% | ▲ 45.3% |
| Stompdrift Dam | Olifants River | 46,3 | 101.7%OVF | 103.9% | 77.2% | ▲ 24.5% |
| Gamkapoort Dam | Gamka River | 35,8 | 102.5%OVF | 107.3% | 55.4% | ▲ 47.1% |
| Kammanassie Dam | Kammanassie River | 34,4 | 101.7%OVF | 102.6% | 78.6% | ▲ 23.1% |
| Steenbras-Lower Dam | Steenbras River | 33,9 | 50.7% | 51.4% | 40.3% | ▲ 10.4% |
| Steenbras-Upper Dam | Steenbras River | 31,9 | 81.2% | 79.7% | 88.9% | ▼ 7.7% |
| Eikenhof Dam | Palmiet River | 28,9 | 101.3%OVF | 102.1% | 45.3% | ▲ 56% |
| Wolwedans Dam | Groot Brak River | 24,7 | 100.3%OVF | 100.4% | 99.2% | ▲ 1.1% |
| Ceres Dam | Koekedou River | 17,3 | 62% | 62% | 56.3% | ▲ 5.7% |
| Stettynskloof Dam | Holsloot River | 14,8 | 100% | 100.5% | 42.1% | ▲ 57.9% |
| Leeugamka Dam | Leeu River | 13,5 | 100.3%OVF | 101.3% | 50.8% | ▲ 49.5% |
| Garden Route Dam | Swart River | 12,5 | 90.2% | 90.5% | 91.2% | ▼ 1% |
| Elandskloof Dam | Elands River | 11 | 93% | 93.6% | 30.8% | ▲ 62.2% |
| Lakenvallei Dam | Sanddrifskloof River | 10,5 | 100.1%OVF | 100.1% | 91.5% | ▲ 8.6% |
| Keerom Dam | Nuy River | 9,8 | 88.4% | 88.4% | 84.3% | ▲ 4.1% |
| Poortjieskloof Dam | Groot River | 9,8 | 96% | 95.3% | 81.3% | ▲ 14.7% |
| Korentepoort Dam | Korinte River | 8,1 | 60.8% | 60.3% | 94.8% | ▼ 34% |
| Roode Els Berg Dam | Sanddrifskloof River | 7,8 | 97.6% | 96.7% | 26.6% | ▲ 71% |
| Hartebeestkuil Dam | Hartenbos River | 7,2 | 55.5% | 55.5% | 70.4% | ▼ 14.9% |
| Duiwenhoks Dam | Duiwenhoks River | 6,2 | 100.2%OVF | 100.3% | 100.1% | ▲ 0.1% |
| De Bos Dam | Onrus River | 5,8 | 95.3% | 94.4% | 73% | ▲ 22.3% |
| Misverstand Dam | Berg River | 5,7 | 114.1%OVF | 115.9% | 113.5% | ▲ 0.6% |
| Calitzdorp Dam | Nels River | 4,9 | 100.3%OVF | 100.4% | 61.4% | ▲ 38.9% |
| Bulshoek Dam | Olifants River | 4,9 | 46.6% | 93.7% | 82.9% | ▼ 36.3% |
| Haarlem Dam | Groot River | 4,7 | 100.4%OVF | 101.5% | 70.4% | ▲ 30% |
| Buffeljags Dam | Buffeljags River | 4,6 | 100.8%OVF | 101.1% | 100.7% | ▲ 0.1% |
| Klipheuwel Dam | Tributary — Hartenbos River | 4,5 | 20.5% | 20.8% | 29.9% | ▼ 9.4% |
| Bellair Dam | Brak River | 4,3 | 92.5% | 92.5% | 85.2% | ▲ 7.3% |
| Oukloof Dam | Cordiers River | 4,3 | 100.4%OVF | 101% | 89.1% | ▲ 11.3% |
| Prinsrivier Dam | Prins River | 2,3 | 98.3% | 98.3% | 44.4% | ▲ 53.9% |
| Roodefontein Dam | Piesang River | 2 | 99.5% | 100% | 59% | ▲ 40.5% |
| Klipberg Dam | Konings River | 2 | 82.6% | 81.3% | 53.4% | ▲ 29.2% |
| Pietersfontein Dam | Pietersfontein River | 2 | 100.3%OVF | 100.5% | 79.6% | ▲ 20.7% |
| Gamka Dam | Gamka River | 1,8 | 100.3%OVF | 100.8% | 50.3% | ▲ 50% |
| Miertjieskraal Dam | Brand River | 1,5 | 99.8% | 99.8% | 63.8% | ▲ 36% |
| Ernest Robertson Dam | Groot Brak River | 0,5 | 100% | 100% | 84.4% | ▲ 15.6% |
| Tierkloof Dam | Trib. — Seweweekspoort River | 0,1 | 100% | 100% | 93.5% | ▲ 6.5% |
Dam name links to venue page · FSC = Full Storage Capacity · Source: DWS Weekly State of Dams
Gate Notice History
View on VB Hydrology →19 May 2026Vaal DamLatest
Close the one (1) gate at 12:00.
19 May 2026BloemhofLatest
Maintain the discharge at 250m³/s.
17 May 2026Vaal Dam
Keep one (1) gate open.
17 May 2026Bloemhof
Reduce the discharge to 250m³/s at 10:00.
12 May 2026Vaal Dam
Keep one (1) gate open.
12 May 2026Bloemhof
Reduce the discharge to 700m³/s at 10:00.
Data sourced from DWS Hydrological Services and VB Hydrology (DWS Comms). Updated weekly every Monday. CastZone does not warrant the accuracy of DWS data — always exercise caution near water.