Reservoir · South Australia · Australia · BOM Water Data Online
Happy Valley
81.7% full
Capacity
12.6 hm³
Volume stored
10 hm³
River
Off-stream
Year completed
1897
Coordinates
35.072°S, 138.572°E
Last updated
2026-06-07
Current fill
81.7%vs 7 days ago
-0.4%losing
vs 1 year ago
+1.4%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: 2026-06-07.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -35.072, 138.572 · Open in Google Maps
About Happy Valley
As of June 7, 2026, Happy Valley is filled to 81.7% of its total capacity, holding roughly 10 hm³ of water out of a maximum 13 hm³. At this level the reservoir is high. Of that total, about 9 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (-0.4 pts), and it is 1.4 points above its level on the same date a year earlier.
Across the readings we hold for Happy Valley — 1090 data points between June 12, 2023 and June 7, 2026 — the level has ranged from a low of 77.6% (November 16, 2024) to a high of 98.5% (October 20, 2024). On average the reservoir is fullest around October and at its lowest around November.
The dam at Happy Valley was completed in 1897. It is operated by BOM primarily for water supply. It lies within the Off-stream Basin basin at 35.072°S, 138.572°E.
Key facts
- Current fill level
- 81.7%
- Water stored
- 10 hm³
- Total capacity
- 13 hm³
- Usable capacity
- 9 hm³
- 7-day change
- ▼ 0.4 pts
- Year-on-year
- ▲ 1.4 pts
- Primary use
- Water supply
- River
- Off-stream
- River basin
- Off-stream Basin
- Year completed
- 1897
- Operator
- BOM
- Coordinates
- 35.072°S, 138.572°E
- Last updated
- June 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Jun 2026 | 81.7% | 10 |
| 6 Jun 2026 | 82.1% | 10 |
| 5 Jun 2026 | 82.4% | 10 |
| 4 Jun 2026 | 82.4% | 10 |
| 3 Jun 2026 | 82.4% | 10 |
| 2 Jun 2026 | 82.5% | 10 |
| 1 Jun 2026 | 82.3% | 10 |
| 31 May 2026 | 81.8% | 10 |
| 30 May 2026 | 81.5% | 10 |
| 29 May 2026 | 81.3% | 10 |
| 28 May 2026 | 81.0% | 10 |
| 27 May 2026 | 80.8% | 10 |
Frequently asked questions
What is the current water level of Happy Valley?
As of June 7, 2026, Happy Valley is at 81.7% of its capacity, holding approximately 10 hm³ of water, according to BOM data.
Is Happy Valley reservoir full?
No. As of June 7, 2026, Happy Valley is high at 81.7% of its capacity, so it is not full.
Is the water level at Happy Valley rising or falling?
The level at Happy Valley has been broadly stable over the latest week on record (-0.4 points).
How much water can Happy Valley hold?
Happy Valley has a total capacity of 13 hm³, of which about 9 hm³ is usable storage.
Where is Happy Valley reservoir located?
Happy Valley is located in South Australia, Australia, within the Off-stream Basin basin (coordinates 35.072°S, 138.572°E).
When was Happy Valley dam built?
The dam at Happy Valley was completed in 1897.
What is Happy Valley used for?
Happy Valley is used primarily for water supply, and is managed by BOM.