Reservoir · Ohio · United States · USACE CWMS
Berlin Lake
96.7% full
Capacity
72.04 hm³
Volume stored
70 hm³
Coordinates
41.046°N, 81.002°W
Last updated
2026-09-11
Current fill
96.7%vs 7 days ago
+4.7%gaining
vs 1 year ago
N/A7-day trend
↑rising
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. 41.046, -81.002 · Open in Google Maps
About Berlin Lake
As of September 11, 2026, Berlin Lake is filled to 96.7% of its total capacity, holding roughly 70 hm³ of water out of a maximum 72 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has risen by 4.7 percentage points.
Across the readings we hold for Berlin Lake — 327 data points between September 12, 2021 and September 11, 2026 — the level has ranged from a low of 53.5% (February 16, 2022) to a high of 105.0% (February 25, 2022). On average the reservoir is fullest around May and at its lowest around January.
It is operated by USACE primarily for multiple purposes. It lies within the Ohio basin at 41.046°N, 81.002°W.
Key facts
- Current fill level
- 96.7%
- Water stored
- 70 hm³
- Total capacity
- 72 hm³
- 7-day change
- ▲ 4.7 pts
- Primary use
- Multipurpose
- River basin
- Ohio
- Operator
- USACE
- Coordinates
- 41.046°N, 81.002°W
- Last updated
- September 11, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 11 Sep 2026 | 96.7% | 70 |
| 10 Sep 2026 | 95.9% | 69 |
| 9 Sep 2026 | 93.5% | 67 |
| 8 Sep 2026 | 93.8% | 68 |
| 7 Sep 2026 | 94.2% | 68 |
| 6 Sep 2026 | 94.4% | 68 |
| 5 Sep 2026 | 93.9% | 68 |
| 4 Sep 2026 | 92.0% | 66 |
| 3 Sep 2026 | 88.0% | 63 |
| 2 Sep 2026 | 87.5% | 63 |
| 1 Sep 2026 | 88.0% | 63 |
| 31 Aug 2026 | 88.5% | 64 |