Reservoir · New South Wales · Australia · BOM Water Data Online
Cataract
78.2% full
Capacity
97.4 hm³
Volume stored
76 hm³
River
Cataract River
Year completed
1907
Coordinates
34.286°S, 150.868°E
Last updated
2026-09-09
Current fill
78.2%vs 7 days ago
-0.6%losing
vs 1 year ago
-21.1%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: 2026-09-09.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -34.286, 150.868 · Open in Google Maps
About Cataract
As of September 9, 2026, Cataract is filled to 78.2% of its total capacity, holding roughly 76 hm³ of water out of a maximum 97 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 (-0.6 pts), and it is 21.1 points below its level on the same date a year earlier.
Across the readings we hold for Cataract — 1095 data points between September 11, 2023 and September 9, 2026 — the level has ranged from a low of 65.1% (November 2, 2023) to a high of 103.3% (August 21, 2025). On average the reservoir is fullest around June and at its lowest around December.
The dam at Cataract was completed in 1907. It is operated by BOM primarily for water supply. It lies within the Cataract River Basin basin at 34.286°S, 150.868°E.
Key facts
- Current fill level
- 78.2%
- Water stored
- 76 hm³
- Total capacity
- 97 hm³
- 7-day change
- ▼ 0.6 pts
- Year-on-year
- ▼ 21.1 pts
- Primary use
- Water supply
- River
- Cataract River
- River basin
- Cataract River Basin
- Year completed
- 1907
- Operator
- BOM
- Coordinates
- 34.286°S, 150.868°E
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Sep 2026 | 78.2% | 76 |
| 8 Sep 2026 | 78.2% | 76 |
| 7 Sep 2026 | 78.3% | 76 |
| 6 Sep 2026 | 78.4% | 76 |
| 5 Sep 2026 | 78.5% | 76 |
| 4 Sep 2026 | 78.6% | 77 |
| 3 Sep 2026 | 78.7% | 77 |
| 2 Sep 2026 | 78.8% | 77 |
| 1 Sep 2026 | 78.9% | 77 |
| 31 Aug 2026 | 79.0% | 77 |
| 30 Aug 2026 | 79.0% | 77 |
| 29 Aug 2026 | 79.1% | 77 |