Reservoir · Kentucky · United States · USACE CWMS
Barkley Lock and Dam
99.7% full
Capacity
1,071.9 hm³
Volume stored
1068 hm³
Coordinates
37.021°N, 88.223°W
Last updated
2026-07-29
Current fill
99.7%vs 7 days ago
-1.6%losing
vs 1 year ago
-5.3%year-over-year
7-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: 2026-07-29.
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 July 29, 2026, Barkley Lock and Dam is filled to 99.7% of its total capacity, holding roughly 1,068 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 fallen by 1.6 percentage points, and it is 5.3 points below its level on the same date a year earlier.
Across the readings we hold for Barkley Lock and Dam — 327 data points between July 31, 2021 and July 29, 2026 — the level has ranged from a low of 69.4% (December 29, 2021) to a high of 105.0% (May 9, 2026). On average the reservoir is fullest around June 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
- 99.7%
- Water stored
- 1,068 hm³
- Total capacity
- 1,072 hm³
- 7-day change
- ▼ 1.6 pts
- Year-on-year
- ▼ 5.3 pts
- Primary use
- Multipurpose
- River basin
- Kentucky
- Operator
- USACE
- Coordinates
- 37.021°N, 88.223°W
- Last updated
- July 29, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 29 Jul 2026 | 99.7% | 1,068 |
| 28 Jul 2026 | 101.3% | 1,086 |
| 27 Jul 2026 | 101.7% | 1,090 |
| 26 Jul 2026 | 101.0% | 1,083 |
| 25 Jul 2026 | 101.7% | 1,090 |
| 24 Jul 2026 | 101.3% | 1,086 |
| 23 Jul 2026 | 101.7% | 1,090 |
| 22 Jul 2026 | 101.7% | 1,090 |
| 21 Jul 2026 | 101.3% | 1,086 |
| 20 Jul 2026 | 101.7% | 1,090 |
| 19 Jul 2026 | 102.3% | 1,097 |
| 18 Jul 2026 | 102.3% | 1,097 |
Frequently asked questions
What is the current water level of Barkley Lock and Dam?
As of July 29, 2026, Barkley Lock and Dam is at 99.7% of its capacity, holding approximately 1,068 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Barkley Lock and Dam reservoir full?
Barkley Lock and Dam is essentially full, sitting at 99.7% of capacity as of July 29, 2026.
Is the water level at Barkley Lock and Dam rising or falling?
The level at Barkley Lock and Dam is falling — it dropped 1.6 percentage points over the latest week on record.
How much water can Barkley Lock and Dam hold?
Barkley Lock and Dam has a total capacity of 1,072 hm³.
Where is Barkley Lock and Dam reservoir located?
Barkley Lock and Dam is located in Kentucky, United States, within the Kentucky basin (coordinates 37.021°N, 88.223°W).
What is Barkley Lock and Dam used for?
Barkley Lock and Dam is used primarily for multiple purposes, and is managed by USACE.