Dam · Western Cape · South Africa · DWS
Steenbras-Lower Dam
47.7% full
Total capacity
33.9 Mm³
River
Steenbras
Basin
Berg-Breede
Primary use
water supply
Operator
City of Cape Town
Coordinates
-34.183°S, 18.867°E
Last updated
2026-06-09
Current fill
47.7%vs 7 days ago
-3.0%losing
vs 1 year ago
N/A7-day trend
↓falling
Weekly storage
Fill history — multi-year
About this dam
Dam height
53 m
Year built
1921
Dam type
Gravity
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. -34.183, 18.867 · Open in Google Maps
About Steenbras-Lower Dam
As of June 9, 2026, Steenbras-Lower Dam is filled to 47.7% of its total capacity, holding roughly 16 Mm³ of water out of a maximum 34 Mm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has fallen by 3.0 percentage points.
Across the readings we hold for Steenbras-Lower Dam — 5 data points between May 31, 2026 and June 9, 2026 — the level has ranged from a low of 47.7% (June 9, 2026) to a high of 51.4% (May 31, 2026).
The dam at Steenbras-Lower Dam stands 53 m tall and is a gravity dam and was completed in 1921. It is operated by City of Cape Town primarily for water supply. It lies within the Berg-Breede basin at 34.183°S, 18.867°E.
Key facts
- Current fill level
- 47.7%
- Water stored
- 16 Mm³
- Total capacity
- 34 Mm³
- 7-day change
- ▼ 3.0 pts
- Primary use
- Water supply
- River
- Steenbras
- River basin
- Berg-Breede
- Dam height
- 53 m
- Year completed
- 1921
- Operator
- City of Cape Town
- Coordinates
- 34.183°S, 18.867°E
- Last updated
- June 9, 2026
Recent readings
| Date | Fill level | Volume (Mm³) |
|---|---|---|
| 9 Jun 2026 | 47.7% | 16 |
| 8 Jun 2026 | 50.7% | 17 |
| 7 Jun 2026 | 50.7% | 17 |
| 3 Jun 2026 | 50.7% | 17 |
| 31 May 2026 | 51.4% | 17 |
Frequently asked questions
What is the current water level of Steenbras-Lower Dam?
As of June 9, 2026, Steenbras-Lower Dam is at 47.7% of its capacity, holding approximately 16 Mm³ of water, according to DWS South Africa data.
Is Steenbras-Lower Dam reservoir full?
No. As of June 9, 2026, Steenbras-Lower Dam is within its normal operating range at 47.7% of its capacity, so it is not full.
Is the water level at Steenbras-Lower Dam rising or falling?
The level at Steenbras-Lower Dam is falling — it dropped 3.0 percentage points over the latest week on record.
How much water can Steenbras-Lower Dam hold?
Steenbras-Lower Dam has a total capacity of 34 Mm³.
Where is Steenbras-Lower Dam reservoir located?
Steenbras-Lower Dam is located in Western Cape, South Africa, within the Berg-Breede basin (coordinates 34.183°S, 18.867°E).
When was Steenbras-Lower Dam dam built?
The dam at Steenbras-Lower Dam was completed in 1921.
What is Steenbras-Lower Dam used for?
Steenbras-Lower Dam is used primarily for water supply, and is managed by City of Cape Town.