Reservoir · Oklahoma · United States · USACE CWMS
Eufaula Lake
82.2% full
Capacity
2,855.02 hm³
Volume stored
2347 hm³
Coordinates
35.307°N, 95.362°W
Last updated
2026-09-11
Current fill
82.2%vs 7 days ago
-1.9%losing
vs 1 year ago
N/A7-day trend
↓falling
Data source: USACE CWMS — US Army Corps of Engineers — 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: 2026-09-11.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 35.307, -95.362 · Open in Google Maps
About Eufaula Lake
As of September 11, 2026, Eufaula Lake is filled to 82.2% of its total capacity, holding roughly 2,347 hm³ of water out of a maximum 2,855 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has fallen by 1.9 percentage points.
Across the readings we hold for Eufaula Lake — 329 data points between September 12, 2021 and September 11, 2026 — the level has ranged from a low of 82.2% (September 11, 2026) to a high of 105.0% (June 14, 2026). On average the reservoir is fullest around June and at its lowest around February.
It is operated by USACE primarily for multiple purposes. It lies within the Oklahoma basin at 35.307°N, 95.362°W.
Key facts
- Current fill level
- 82.2%
- Water stored
- 2,347 hm³
- Total capacity
- 2,855 hm³
- 7-day change
- ▼ 1.9 pts
- Primary use
- Multipurpose
- River basin
- Oklahoma
- Operator
- USACE
- Coordinates
- 35.307°N, 95.362°W
- Last updated
- September 11, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 11 Sep 2026 | 82.2% | 2,347 |
| 10 Sep 2026 | 82.3% | 2,349 |
| 9 Sep 2026 | 82.7% | 2,361 |
| 8 Sep 2026 | 83.0% | 2,370 |
| 7 Sep 2026 | 83.2% | 2,376 |
| 6 Sep 2026 | 83.4% | 2,382 |
| 5 Sep 2026 | 83.8% | 2,392 |
| 4 Sep 2026 | 84.1% | 2,401 |
| 3 Sep 2026 | 84.6% | 2,414 |
| 2 Sep 2026 | 84.9% | 2,425 |
| 1 Sep 2026 | 85.3% | 2,434 |
| 31 Aug 2026 | 85.6% | 2,444 |