Reservoir · Ohio · United States · USACE CWMS
Piedmont Lake
102.3% full
Capacity
42.56 hm³
Volume stored
44 hm³
Coordinates
40.192°N, 81.218°W
Last updated
2026-07-30
Current fill
102.3%vs 7 days ago
-0.2%losing
vs 1 year ago
+0.8%year-over-year
7-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. 40.192, -81.218 · Open in Google Maps
About Piedmont Lake
As of July 30, 2026, Piedmont Lake is filled to 102.3% of its total capacity, holding roughly 44 hm³ of water out of a maximum 43 hm³. At this level the reservoir is effectively full.
Over the most recent week on record the fill level has held broadly steady (-0.2 pts), and it sits close to where it was a year earlier.
Across the readings we hold for Piedmont Lake — 100 data points between July 31, 2021 and July 30, 2026 — the level has ranged from a low of 99.0% (August 9, 2021) to a high of 105.0% (August 18, 2021).
It is operated by USACE primarily for multiple purposes. It lies within the Ohio basin at 40.192°N, 81.218°W.
Key facts
- Current fill level
- 102.3%
- Water stored
- 44 hm³
- Total capacity
- 43 hm³
- 7-day change
- ▼ 0.2 pts
- Year-on-year
- ▲ 0.8 pts
- Primary use
- Multipurpose
- River basin
- Ohio
- Operator
- USACE
- Coordinates
- 40.192°N, 81.218°W
- Last updated
- July 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Jul 2026 | 102.3% | 44 |
| 29 Jul 2026 | 102.5% | 44 |
| 28 Jul 2026 | 102.7% | 44 |
| 27 Jul 2026 | 102.7% | 44 |
| 26 Jul 2026 | 103.0% | 44 |
| 25 Jul 2026 | 103.1% | 44 |
| 24 Jul 2026 | 103.3% | 44 |
| 23 Jul 2026 | 103.5% | 44 |
| 22 Jul 2026 | 103.5% | 44 |
| 21 Jul 2026 | 103.1% | 44 |
| 20 Jul 2026 | 102.7% | 44 |
| 19 Jul 2026 | 103.0% | 44 |
Frequently asked questions
What is the current water level of Piedmont Lake?
As of July 30, 2026, Piedmont Lake is at 102.3% of its capacity, holding approximately 44 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Piedmont Lake reservoir full?
Piedmont Lake is essentially full, sitting at 102.3% of capacity as of July 30, 2026.
Is the water level at Piedmont Lake rising or falling?
The level at Piedmont Lake has been broadly stable over the latest week on record (-0.2 points).
How much water can Piedmont Lake hold?
Piedmont Lake has a total capacity of 43 hm³.
Where is Piedmont Lake reservoir located?
Piedmont Lake is located in Ohio, United States, within the Ohio basin (coordinates 40.192°N, 81.218°W).
What is Piedmont Lake used for?
Piedmont Lake is used primarily for multiple purposes, and is managed by USACE.