Reservoir · Wyoming · United States · BOR RISE
Alcova Reservoir Dam and Powerplant
97.9% full
Capacity
227.46 hm³
Volume stored
223 hm³
Coordinates
42.549°N, 106.721°W
Last updated
2026-06-10
Current fill
97.9%vs 7 days ago
0.0%stable
vs 1 year ago
+4.2%year-over-year
7-day trend
→stable
Data source: BOR RISE — US Bureau of Reclamation — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. Last reading: 2026-06-10.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 42.549, -106.721 · Open in Google Maps
About Alcova Reservoir Dam and Powerplant
As of June 10, 2026, Alcova Reservoir Dam and Powerplant is filled to 97.9% of its total capacity, holding roughly 223 hm³ of water out of a maximum 227 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it is 4.2 points above its level on the same date a year earlier.
Across the readings we hold for Alcova Reservoir Dam and Powerplant — 1828 data points between June 13, 2021 and June 10, 2026 — the level has ranged from a low of 84.7% (March 10, 2026) to a high of 98.6% (June 3, 2023). On average the reservoir is fullest around September and at its lowest around November.
It is operated by BOR primarily for multiple purposes. It lies within the Wyoming basin at 42.549°N, 106.721°W.
Key facts
- Current fill level
- 97.9%
- Water stored
- 223 hm³
- Total capacity
- 227 hm³
- 7-day change
- No change
- Year-on-year
- ▲ 4.2 pts
- Primary use
- Multipurpose
- River basin
- Wyoming
- Operator
- BOR
- Coordinates
- 42.549°N, 106.721°W
- Last updated
- June 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Jun 2026 | 97.9% | 223 |
| 9 Jun 2026 | 97.9% | 223 |
| 8 Jun 2026 | 98.0% | 223 |
| 7 Jun 2026 | 98.0% | 223 |
| 6 Jun 2026 | 98.0% | 223 |
| 5 Jun 2026 | 98.0% | 223 |
| 4 Jun 2026 | 98.0% | 223 |
| 3 Jun 2026 | 98.0% | 223 |
| 2 Jun 2026 | 98.0% | 223 |
| 1 Jun 2026 | 98.1% | 223 |
| 31 May 2026 | 98.5% | 224 |
| 30 May 2026 | 98.1% | 223 |
Frequently asked questions
What is the current water level of Alcova Reservoir Dam and Powerplant?
As of June 10, 2026, Alcova Reservoir Dam and Powerplant is at 97.9% of its capacity, holding approximately 223 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Alcova Reservoir Dam and Powerplant reservoir full?
Alcova Reservoir Dam and Powerplant is essentially full, sitting at 97.9% of capacity as of June 10, 2026.
Is the water level at Alcova Reservoir Dam and Powerplant rising or falling?
The level at Alcova Reservoir Dam and Powerplant has been broadly stable over the latest week on record (0.0 points).
How much water can Alcova Reservoir Dam and Powerplant hold?
Alcova Reservoir Dam and Powerplant has a total capacity of 227 hm³.
Where is Alcova Reservoir Dam and Powerplant reservoir located?
Alcova Reservoir Dam and Powerplant is located in Wyoming, United States, within the Wyoming basin (coordinates 42.549°N, 106.721°W).
What is Alcova Reservoir Dam and Powerplant used for?
Alcova Reservoir Dam and Powerplant is used primarily for multiple purposes, and is managed by BOR.