Reservoir · Wyoming · United States · BOR RISE
Buffalo Bill Reservoir Dam and Powerplant
82.2% full
Capacity
797.53 hm³
Volume stored
656 hm³
Coordinates
44.501°N, 109.183°W
Last updated
2026-06-10
Current fill
82.2%vs 7 days ago
+0.5%gaining
vs 1 year ago
+11.6%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. 44.501, -109.183 · Open in Google Maps
About Buffalo Bill Reservoir Dam and Powerplant
As of June 10, 2026, Buffalo Bill Reservoir Dam and Powerplant is filled to 82.2% of its total capacity, holding roughly 656 hm³ of water out of a maximum 798 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (+0.5 pts), and it is 11.6 points above its level on the same date a year earlier.
Across the readings we hold for Buffalo Bill Reservoir Dam and Powerplant — 1827 data points between June 13, 2021 and June 10, 2026 — the level has ranged from a low of 52.5% (October 14, 2025) to a high of 98.0% (July 17, 2022). On average the reservoir is fullest around July and at its lowest around October.
It is operated by BOR primarily for multiple purposes. It lies within the Wyoming basin at 44.501°N, 109.183°W.
Key facts
- Current fill level
- 82.2%
- Water stored
- 656 hm³
- Total capacity
- 798 hm³
- 7-day change
- ▲ 0.5 pts
- Year-on-year
- ▲ 11.6 pts
- Primary use
- Multipurpose
- River basin
- Wyoming
- Operator
- BOR
- Coordinates
- 44.501°N, 109.183°W
- Last updated
- June 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Jun 2026 | 82.2% | 656 |
| 9 Jun 2026 | 81.7% | 651 |
| 8 Jun 2026 | 81.0% | 646 |
| 7 Jun 2026 | 80.1% | 639 |
| 6 Jun 2026 | 79.1% | 631 |
| 5 Jun 2026 | 78.1% | 623 |
| 4 Jun 2026 | 77.3% | 617 |
| 3 Jun 2026 | 76.6% | 611 |
| 2 Jun 2026 | 75.9% | 606 |
| 1 Jun 2026 | 75.3% | 600 |
| 31 May 2026 | 74.4% | 594 |
| 30 May 2026 | 73.2% | 584 |
Frequently asked questions
What is the current water level of Buffalo Bill Reservoir Dam and Powerplant?
As of June 10, 2026, Buffalo Bill Reservoir Dam and Powerplant is at 82.2% of its capacity, holding approximately 656 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Buffalo Bill Reservoir Dam and Powerplant reservoir full?
No. As of June 10, 2026, Buffalo Bill Reservoir Dam and Powerplant is high at 82.2% of its capacity, so it is not full.
Is the water level at Buffalo Bill Reservoir Dam and Powerplant rising or falling?
The level at Buffalo Bill Reservoir Dam and Powerplant has been broadly stable over the latest week on record (+0.5 points).
How much water can Buffalo Bill Reservoir Dam and Powerplant hold?
Buffalo Bill Reservoir Dam and Powerplant has a total capacity of 798 hm³.
Where is Buffalo Bill Reservoir Dam and Powerplant reservoir located?
Buffalo Bill Reservoir Dam and Powerplant is located in Wyoming, United States, within the Wyoming basin (coordinates 44.501°N, 109.183°W).
What is Buffalo Bill Reservoir Dam and Powerplant used for?
Buffalo Bill Reservoir Dam and Powerplant is used primarily for multiple purposes, and is managed by BOR.