Reservoir · New South Wales · Australia · BOM Water Data Online
Seaham Weir
Current fill: N/A
Capacity
7.4 hm³
Volume stored
N/A
River
Williams River
Year completed
1979
Coordinates
32.614°S, 151.765°E
Not currently reporting
The most recent reading for this reservoir is from 2025-12-17, more than 45 days ago, so the current fill is shown as N/A. The history below reflects that older reading.
Current fill
N/Avs 7 days ago
N/Avs 1 year ago
N/A7-day trend
N/AData 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).
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -32.614, 151.765 · Open in Google Maps
About Seaham Weir
The dam at Seaham Weir was completed in 1979. It is operated by BOM primarily for water supply. It lies within the Williams River Basin basin at 32.614°S, 151.765°E.
Key facts
- Total capacity
- 7 hm³
- Usable capacity
- 2 hm³
- Primary use
- Water supply
- River
- Williams River
- River basin
- Williams River Basin
- Year completed
- 1979
- Operator
- BOM
- Coordinates
- 32.614°S, 151.765°E
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 17 Dec 2025 | 10.3% | 1 |
| 20 Oct 2025 | 12.7% | 1 |
| 19 Oct 2025 | 12.8% | 1 |
| 18 Oct 2025 | 12.9% | 1 |
| 17 Oct 2025 | 12.8% | 1 |
Frequently asked questions
How much water can Seaham Weir hold?
Seaham Weir has a total capacity of 7 hm³, of which about 2 hm³ is usable storage.
Where is Seaham Weir reservoir located?
Seaham Weir is located in New South Wales, Australia, within the Williams River Basin basin (coordinates 32.614°S, 151.765°E).
When was Seaham Weir dam built?
The dam at Seaham Weir was completed in 1979.
What is Seaham Weir used for?
Seaham Weir is used primarily for water supply, and is managed by BOM.