Reservoir · Western Australia · Australia · BOM Water Data Online
Samson Brook
49.4% full
Capacity
8 hm³
Volume stored
4 hm³
River
Samson Brook
Year completed
1941
Coordinates
32.877°S, 116.027°E
Last updated
2026-07-26
Current fill
49.4%vs 7 days ago
-0.2%losing
vs 1 year ago
+8.0%year-over-year
7-day trend
→stable
Data source: Bureau of Meteorology — Water Data Online (KiWIS) — daily mean storage volume, quality-controlled. Capacity from the BOM Water Storages ArcGIS layer (total design capacity in ML). Last reading: 2026-07-26.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -32.877, 116.027 · Open in Google Maps
About Samson Brook
As of July 26, 2026, Samson Brook is filled to 49.4% of its total capacity, holding roughly 4 hm³ of water out of a maximum 8 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has held broadly steady (-0.2 pts), and it is 8.0 points above its level on the same date a year earlier.
Across the readings we hold for Samson Brook — 1053 data points between July 30, 2023 and July 26, 2026 — the level has ranged from a low of 30.5% (May 24, 2024) to a high of 90.8% (October 6, 2024). On average the reservoir is fullest around September and at its lowest around May.
The dam at Samson Brook was completed in 1941. It is operated by BOM primarily for water supply. It lies within the Samson Brook Basin basin at 32.877°S, 116.027°E.
Key facts
- Current fill level
- 49.4%
- Water stored
- 4 hm³
- Total capacity
- 8 hm³
- 7-day change
- ▼ 0.2 pts
- Year-on-year
- ▲ 8.0 pts
- Primary use
- Water supply
- River
- Samson Brook
- River basin
- Samson Brook Basin
- Year completed
- 1941
- Operator
- BOM
- Coordinates
- 32.877°S, 116.027°E
- Last updated
- July 26, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 26 Jul 2026 | 49.4% | 4 |
| 25 Jul 2026 | 49.6% | 4 |
| 24 Jul 2026 | 49.7% | 4 |
| 23 Jul 2026 | 49.4% | 4 |
| 22 Jul 2026 | 49.1% | 4 |
| 21 Jul 2026 | 49.0% | 4 |
| 20 Jul 2026 | 48.9% | 4 |
| 19 Jul 2026 | 48.7% | 4 |
| 18 Jul 2026 | 48.5% | 4 |
| 17 Jul 2026 | 48.2% | 4 |
| 16 Jul 2026 | 47.7% | 4 |
| 15 Jul 2026 | 47.6% | 4 |
Frequently asked questions
What is the current water level of Samson Brook?
As of July 26, 2026, Samson Brook is at 49.4% of its capacity, holding approximately 4 hm³ of water, according to BOM data.
Is Samson Brook reservoir full?
No. As of July 26, 2026, Samson Brook is within its normal operating range at 49.4% of its capacity, so it is not full.
Is the water level at Samson Brook rising or falling?
The level at Samson Brook has been broadly stable over the latest week on record (-0.2 points).
How much water can Samson Brook hold?
Samson Brook has a total capacity of 8 hm³.
Where is Samson Brook reservoir located?
Samson Brook is located in Western Australia, Australia, within the Samson Brook Basin basin (coordinates 32.877°S, 116.027°E).
When was Samson Brook dam built?
The dam at Samson Brook was completed in 1941.
What is Samson Brook used for?
Samson Brook is used primarily for water supply, and is managed by BOM.