Reservoir · Kentucky · United States · USACE CWMS
Barkley Lock and Dam
83.3% full
Capacity
1,071.9 hm³
Volume stored
893 hm³
Coordinates
37.021°N, 88.223°W
Last updated
2026-09-11
Current fill
83.3%vs 7 days ago
-0.6%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. 37.021, -88.223 · Open in Google Maps
About Barkley Lock and Dam
As of September 11, 2026, Barkley Lock and Dam is filled to 83.3% of its total capacity, holding roughly 893 hm³ of water out of a maximum 1,072 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.6 pts).
Across the readings we hold for Barkley Lock and Dam — 328 data points between September 12, 2021 and September 11, 2026 — the level has ranged from a low of 69.4% (December 29, 2021) to a high of 105.0% (May 14, 2026). On average the reservoir is fullest around May and at its lowest around November.
It is operated by USACE primarily for multiple purposes. It lies within the Kentucky basin at 37.021°N, 88.223°W.
Key facts
- Current fill level
- 83.3%
- Water stored
- 893 hm³
- Total capacity
- 1,072 hm³
- 7-day change
- ▼ 0.6 pts
- Primary use
- Multipurpose
- River basin
- Kentucky
- Operator
- USACE
- Coordinates
- 37.021°N, 88.223°W
- Last updated
- September 11, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 11 Sep 2026 | 83.3% | 893 |
| 10 Sep 2026 | 83.3% | 893 |
| 9 Sep 2026 | 83.0% | 890 |
| 8 Sep 2026 | 83.0% | 890 |
| 7 Sep 2026 | 82.1% | 880 |
| 6 Sep 2026 | 81.5% | 874 |
| 5 Sep 2026 | 83.0% | 890 |
| 4 Sep 2026 | 83.9% | 899 |
| 3 Sep 2026 | 83.6% | 896 |
| 2 Sep 2026 | 84.2% | 902 |
| 1 Sep 2026 | 85.4% | 915 |
| 31 Aug 2026 | 86.3% | 925 |