Reservoir · Wyoming · United States · BOR RISE
South Fork Dike at Buffalo Bill Reservoir
0.4% full
Capacity
797.53 hm³
Volume stored
3 hm³
Coordinates
44.443°N, 109.213°W
Last updated
2026-09-12
Current fill
0.4%vs 7 days ago
0.0%stable
vs 1 year ago
0.0%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: 2026-09-12.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 44.443, -109.213 · Open in Google Maps
About South Fork Dike at Buffalo Bill Reservoir
As of September 12, 2026, South Fork Dike at Buffalo Bill Reservoir is filled to 0.4% of its total capacity, holding roughly 3 hm³ of water out of a maximum 798 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it sits close to where it was a year earlier.
Across the readings we hold for South Fork Dike at Buffalo Bill Reservoir — 1950 data points between September 15, 2021 and September 12, 2026 — the level has ranged from a low of 0.3% (October 6, 2021) to a high of 0.4% (September 15, 2021). On average the reservoir is fullest around June and at its lowest around April.
It is operated by BOR primarily for multiple purposes. It lies within the Wyoming basin at 44.443°N, 109.213°W.
Key facts
- Current fill level
- 0.4%
- Water stored
- 3 hm³
- Total capacity
- 798 hm³
- 7-day change
- No change
- Year-on-year
- No change
- Primary use
- Multipurpose
- River basin
- Wyoming
- Operator
- BOR
- Coordinates
- 44.443°N, 109.213°W
- Last updated
- September 12, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 12 Sep 2026 | 0.4% | 3 |
| 11 Sep 2026 | 0.4% | 3 |
| 10 Sep 2026 | 0.4% | 3 |
| 9 Sep 2026 | 0.4% | 3 |
| 8 Sep 2026 | 0.4% | 3 |
| 7 Sep 2026 | 0.4% | 3 |
| 6 Sep 2026 | 0.4% | 3 |
| 5 Sep 2026 | 0.4% | 3 |
| 4 Sep 2026 | 0.4% | 3 |
| 3 Sep 2026 | 0.4% | 3 |
| 2 Sep 2026 | 0.4% | 3 |
| 1 Sep 2026 | 0.4% | 3 |