Reservoir · Kentucky · United States · USACE CWMS
Grayson Lake
82.0% full
Capacity
36.25 hm³
Volume stored
30 hm³
Coordinates
38.252°N, 82.986°W
Last updated
2026-07-31
Current fill
82.0%vs 7 days ago
-0.1%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: 2026-07-31.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.252, -82.986 · Open in Google Maps
About Grayson Lake
As of July 31, 2026, Grayson Lake is filled to 82.0% of its total capacity, holding roughly 30 hm³ of water out of a maximum 36 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.1 pts).
Across the readings we hold for Grayson Lake — 47 data points between June 15, 2026 and July 31, 2026 — the level has ranged from a low of 81.2% (June 21, 2026) to a high of 85.1% (July 13, 2026).
It is operated by USACE primarily for multiple purposes. It lies within the Kentucky basin at 38.252°N, 82.986°W.
Key facts
- Current fill level
- 82.0%
- Water stored
- 30 hm³
- Total capacity
- 36 hm³
- 7-day change
- ▼ 0.1 pts
- Primary use
- Multipurpose
- River basin
- Kentucky
- Operator
- USACE
- Coordinates
- 38.252°N, 82.986°W
- Last updated
- July 31, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 31 Jul 2026 | 82.0% | 30 |
| 30 Jul 2026 | 82.1% | 30 |
| 29 Jul 2026 | 82.4% | 30 |
| 28 Jul 2026 | 82.7% | 30 |
| 27 Jul 2026 | 82.6% | 30 |
| 26 Jul 2026 | 82.8% | 30 |
| 25 Jul 2026 | 83.2% | 30 |
| 24 Jul 2026 | 83.5% | 30 |
| 23 Jul 2026 | 83.7% | 30 |
| 22 Jul 2026 | 84.0% | 30 |
| 21 Jul 2026 | 84.0% | 30 |
| 20 Jul 2026 | 83.9% | 30 |
Frequently asked questions
What is the current water level of Grayson Lake?
As of July 31, 2026, Grayson Lake is at 82.0% of its capacity, holding approximately 30 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Grayson Lake reservoir full?
No. As of July 31, 2026, Grayson Lake is high at 82.0% of its capacity, so it is not full.
Is the water level at Grayson Lake rising or falling?
The level at Grayson Lake has been broadly stable over the latest week on record (-0.1 points).
How much water can Grayson Lake hold?
Grayson Lake has a total capacity of 36 hm³.
Where is Grayson Lake reservoir located?
Grayson Lake is located in Kentucky, United States, within the Kentucky basin (coordinates 38.252°N, 82.986°W).
What is Grayson Lake used for?
Grayson Lake is used primarily for multiple purposes, and is managed by USACE.