Reservoir · Western Australia · Australia · BOM Water Data Online
Harvey
60.3% full
Capacity
56.4 hm³
Volume stored
34 hm³
River
Harvey River
Year completed
2002
Coordinates
33.079°S, 115.942°E
Last updated
2026-09-06
Current fill
60.3%vs 7 days ago
+1.6%gaining
vs 1 year ago
-11.3%year-over-year
7-day trend
↑rising
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: 2026-09-06.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -33.079, 115.942 · Open in Google Maps
About Harvey
As of September 6, 2026, Harvey is filled to 60.3% of its total capacity, holding roughly 34 hm³ of water out of a maximum 56 hm³. At this level the reservoir is within its normal operating range. Of that total, about 56 hm³ is usable (live) storage.
Over the most recent week on record the fill level has risen by 1.6 percentage points, and it is 11.3 points below its level on the same date a year earlier.
Across the readings we hold for Harvey — 1056 data points between September 11, 2023 and September 6, 2026 — the level has ranged from a low of 34.6% (May 23, 2024) to a high of 93.4% (October 22, 2024). On average the reservoir is fullest around October and at its lowest around May.
The dam at Harvey was completed in 2002. It is operated by BOM primarily for water supply. It lies within the Harvey River Basin basin at 33.079°S, 115.942°E.
Key facts
- Current fill level
- 60.3%
- Water stored
- 34 hm³
- Total capacity
- 56 hm³
- Usable capacity
- 56 hm³
- 7-day change
- ▲ 1.6 pts
- Year-on-year
- ▼ 11.3 pts
- Primary use
- Water supply
- River
- Harvey River
- River basin
- Harvey River Basin
- Year completed
- 2002
- Operator
- BOM
- Coordinates
- 33.079°S, 115.942°E
- Last updated
- September 6, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 6 Sep 2026 | 60.3% | 34 |
| 5 Sep 2026 | 60.0% | 34 |
| 4 Sep 2026 | 59.6% | 34 |
| 3 Sep 2026 | 59.4% | 33 |
| 2 Sep 2026 | 59.2% | 33 |
| 1 Sep 2026 | 59.1% | 33 |
| 31 Aug 2026 | 59.0% | 33 |
| 30 Aug 2026 | 58.7% | 33 |
| 29 Aug 2026 | 58.5% | 33 |
| 28 Aug 2026 | 58.1% | 33 |
| 27 Aug 2026 | 57.1% | 32 |
| 26 Aug 2026 | 56.1% | 32 |