Reservoir · Ohio · United States · USACE CWMS
Berlin Lake, OH
84.9% full
Capacity
72.04 hm³
Volume stored
61 hm³
Coordinates
41.046°N, 81.002°W
Last updated
2026-07-30
Current fill
84.9%vs 7 days ago
-0.2%losing
vs 1 year ago
-11.4%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. 41.046, -81.002 · Open in Google Maps
About Berlin Lake, OH
As of July 30, 2026, Berlin Lake, OH is filled to 84.9% of its total capacity, holding roughly 61 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 held broadly steady (-0.2 pts), and it is 11.4 points below its level on the same date a year earlier.
Across the readings we hold for Berlin Lake, OH — 327 data points between July 31, 2021 and July 30, 2026 — the level has ranged from a low of 53.5% (February 16, 2022) to a high of 105.0% (April 1, 2026). 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
- 84.9%
- Water stored
- 61 hm³
- Total capacity
- 72 hm³
- 7-day change
- ▼ 0.2 pts
- Year-on-year
- ▼ 11.4 pts
- Primary use
- Multipurpose
- River basin
- Ohio
- Operator
- USACE
- Coordinates
- 41.046°N, 81.002°W
- Last updated
- July 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Jul 2026 | 84.9% | 61 |
| 29 Jul 2026 | 85.1% | 61 |
| 28 Jul 2026 | 85.2% | 61 |
| 27 Jul 2026 | 85.1% | 61 |
| 26 Jul 2026 | 85.6% | 62 |
| 25 Jul 2026 | 86.2% | 62 |
| 24 Jul 2026 | 86.6% | 62 |
| 23 Jul 2026 | 87.2% | 63 |
| 22 Jul 2026 | 87.5% | 63 |
| 21 Jul 2026 | 87.4% | 63 |
| 20 Jul 2026 | 87.6% | 63 |
| 19 Jul 2026 | 87.9% | 63 |
Frequently asked questions
What is the current water level of Berlin Lake, OH?
As of July 30, 2026, Berlin Lake, OH is at 84.9% of its capacity, holding approximately 61 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Berlin Lake, OH reservoir full?
No. As of July 30, 2026, Berlin Lake, OH is high at 84.9% of its capacity, so it is not full.
Is the water level at Berlin Lake, OH rising or falling?
The level at Berlin Lake, OH has been broadly stable over the latest week on record (-0.2 points).
How much water can Berlin Lake, OH hold?
Berlin Lake, OH has a total capacity of 72 hm³.
Where is Berlin Lake, OH reservoir located?
Berlin Lake, OH is located in Ohio, United States, within the Ohio basin (coordinates 41.046°N, 81.002°W).
What is Berlin Lake, OH used for?
Berlin Lake, OH is used primarily for multiple purposes, and is managed by USACE.