Reservoir · Oklahoma · United States · USACE CWMS
Broken Bow Lake
90.2% full
Capacity
1,132.42 hm³
Volume stored
1021 hm³
Coordinates
34.143°N, 94.694°W
Last updated
2026-09-11
Current fill
90.2%vs 7 days ago
-1.4%losing
vs 1 year ago
N/A7-day trend
→stable
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. 34.143, -94.694 · Open in Google Maps
About Broken Bow Lake
As of September 11, 2026, Broken Bow Lake is filled to 90.2% of its total capacity, holding roughly 1,021 hm³ of water out of a maximum 1,132 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-1.4 pts).
Across the readings we hold for Broken Bow Lake — 330 data points between September 12, 2021 and September 11, 2026 — the level has ranged from a low of 83.8% (December 17, 2021) to a high of 105.0% (June 15, 2026). On average the reservoir is fullest around June and at its lowest around December.
It is operated by USACE primarily for multiple purposes. It lies within the Oklahoma basin at 34.143°N, 94.694°W.
Key facts
- Current fill level
- 90.2%
- Water stored
- 1,021 hm³
- Total capacity
- 1,132 hm³
- 7-day change
- ▼ 1.4 pts
- Primary use
- Multipurpose
- River basin
- Oklahoma
- Operator
- USACE
- Coordinates
- 34.143°N, 94.694°W
- Last updated
- September 11, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 11 Sep 2026 | 90.2% | 1,021 |
| 10 Sep 2026 | 90.2% | 1,022 |
| 9 Sep 2026 | 90.4% | 1,024 |
| 8 Sep 2026 | 90.9% | 1,029 |
| 7 Sep 2026 | 91.3% | 1,034 |
| 6 Sep 2026 | 91.4% | 1,035 |
| 5 Sep 2026 | 91.5% | 1,037 |
| 4 Sep 2026 | 91.6% | 1,038 |
| 3 Sep 2026 | 92.0% | 1,042 |
| 2 Sep 2026 | 92.2% | 1,044 |
| 1 Sep 2026 | 92.5% | 1,048 |
| 31 Aug 2026 | 92.7% | 1,050 |