Reservoir · Kentucky · United States · USACE CWMS
Dewey Lake
84.4% full
Capacity
21.22 hm³
Volume stored
18 hm³
Coordinates
37.736°N, 82.729°W
Last updated
2026-07-30
Current fill
84.4%vs 7 days ago
-0.2%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: 2026-07-30.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 37.736, -82.729 · Open in Google Maps
About Dewey Lake
As of July 30, 2026, Dewey Lake is filled to 84.4% of its total capacity, holding roughly 18 hm³ of water out of a maximum 21 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.2 pts).
Across the readings we hold for Dewey Lake — 47 data points between June 14, 2026 and July 30, 2026 — the level has ranged from a low of 83.8% (June 21, 2026) to a high of 89.2% (July 12, 2026).
It is operated by USACE primarily for multiple purposes. It lies within the Kentucky basin at 37.736°N, 82.729°W.
Key facts
- Current fill level
- 84.4%
- Water stored
- 18 hm³
- Total capacity
- 21 hm³
- 7-day change
- ▼ 0.2 pts
- Primary use
- Multipurpose
- River basin
- Kentucky
- Operator
- USACE
- Coordinates
- 37.736°N, 82.729°W
- Last updated
- July 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Jul 2026 | 84.4% | 18 |
| 29 Jul 2026 | 84.6% | 18 |
| 28 Jul 2026 | 84.4% | 18 |
| 27 Jul 2026 | 83.9% | 18 |
| 26 Jul 2026 | 83.9% | 18 |
| 25 Jul 2026 | 83.9% | 18 |
| 24 Jul 2026 | 83.9% | 18 |
| 23 Jul 2026 | 83.9% | 18 |
| 22 Jul 2026 | 83.9% | 18 |
| 21 Jul 2026 | 84.1% | 18 |
| 20 Jul 2026 | 84.1% | 18 |
| 19 Jul 2026 | 84.1% | 18 |
Frequently asked questions
What is the current water level of Dewey Lake?
As of July 30, 2026, Dewey Lake is at 84.4% of its capacity, holding approximately 18 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Dewey Lake reservoir full?
No. As of July 30, 2026, Dewey Lake is high at 84.4% of its capacity, so it is not full.
Is the water level at Dewey Lake rising or falling?
The level at Dewey Lake has been broadly stable over the latest week on record (-0.2 points).
How much water can Dewey Lake hold?
Dewey Lake has a total capacity of 21 hm³.
Where is Dewey Lake reservoir located?
Dewey Lake is located in Kentucky, United States, within the Kentucky basin (coordinates 37.736°N, 82.729°W).
What is Dewey Lake used for?
Dewey Lake is used primarily for multiple purposes, and is managed by USACE.