Reservoir · Western Australia · Australia · BOM Water Data Online
Harvey
61.3% full
Capacity
56.4 hm³
Volume stored
35 hm³
River
Harvey River
Year completed
2002
Coordinates
33.079°S, 115.942°E
Last updated
2026-10-11
Current fill
61.3%vs 7 days ago
0.0%stable
vs 1 year ago
-18.5%year-over-year
7-day trend
→stable
Drought context
Storage vs October average
73%of normal
61.3% full on 2026-10-11, against an average of 83.5% for October across 4 years of readings (-22.2 points).
Rain over the last three months · 21 September 2026
Severely dry
In the three months to 21 September 2026 the area around Harvey had far less rain than normal, a shortfall seen about one year in fifteen. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index −1.81). Rain, not storage. Australia drought figures →
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: 2026-10-11.
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 October 11, 2026, Harvey is filled to 61.3% of its total capacity, holding roughly 35 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 held broadly steady (+0.0 pts), and it is 18.5 points below its level on the same date a year earlier.
Across the readings we hold for Harvey — 1057 data points between October 15, 2023 and October 11, 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
- 61.3%
- Water stored
- 35 hm³
- Total capacity
- 56 hm³
- Usable capacity
- 56 hm³
- 7-day change
- No change
- Year-on-year
- ▼ 18.5 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
- October 11, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 11 Oct 2026 | 61.3% | 35 |
| 10 Oct 2026 | 60.8% | 34 |
| 9 Oct 2026 | 60.5% | 34 |
| 8 Oct 2026 | 61.2% | 35 |
| 7 Oct 2026 | 61.4% | 35 |
| 6 Oct 2026 | 61.3% | 35 |
| 5 Oct 2026 | 61.3% | 35 |
| 4 Oct 2026 | 61.3% | 35 |
| 3 Oct 2026 | 61.3% | 35 |
| 2 Oct 2026 | 61.3% | 35 |
| 1 Oct 2026 | 60.5% | 34 |
| 30 Sep 2026 | 59.7% | 34 |