Reservoir · Ohio · United States · USACE CWMS
Alum Creek Lake
102.9% full
Capacity
100.78 hm³
Volume stored
104 hm³
Coordinates
40.186°N, 82.967°W
Last updated
2026-07-30
Current fill
102.9%vs 7 days ago
0.0%stable
vs 1 year ago
+2.1%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. 40.186, -82.967 · Open in Google Maps
About Alum Creek Lake
As of July 30, 2026, Alum Creek Lake is filled to 102.9% of its total capacity, holding roughly 104 hm³ of water out of a maximum 101 hm³. At this level the reservoir is effectively full.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it is 2.1 points above its level on the same date a year earlier.
Across the readings we hold for Alum Creek Lake — 100 data points between July 31, 2021 and July 30, 2026 — the level has ranged from a low of 100.6% (September 20, 2021) to a high of 104.0% (July 21, 2026).
It is operated by USACE primarily for multiple purposes. It lies within the Ohio basin at 40.186°N, 82.967°W.
Key facts
- Current fill level
- 102.9%
- Water stored
- 104 hm³
- Total capacity
- 101 hm³
- 7-day change
- No change
- Year-on-year
- ▲ 2.1 pts
- Primary use
- Multipurpose
- River basin
- Ohio
- Operator
- USACE
- Coordinates
- 40.186°N, 82.967°W
- Last updated
- July 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Jul 2026 | 102.9% | 104 |
| 29 Jul 2026 | 102.9% | 104 |
| 28 Jul 2026 | 103.3% | 104 |
| 27 Jul 2026 | 103.2% | 104 |
| 26 Jul 2026 | 103.7% | 105 |
| 25 Jul 2026 | 103.7% | 105 |
| 24 Jul 2026 | 103.8% | 105 |
| 23 Jul 2026 | 103.8% | 105 |
| 22 Jul 2026 | 103.8% | 105 |
| 21 Jul 2026 | 104.0% | 105 |
| 20 Jul 2026 | 103.3% | 104 |
| 19 Jul 2026 | 103.3% | 104 |
Frequently asked questions
What is the current water level of Alum Creek Lake?
As of July 30, 2026, Alum Creek Lake is at 102.9% of its capacity, holding approximately 104 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Alum Creek Lake reservoir full?
Alum Creek Lake is essentially full, sitting at 102.9% of capacity as of July 30, 2026.
Is the water level at Alum Creek Lake rising or falling?
The level at Alum Creek Lake has been broadly stable over the latest week on record (0.0 points).
How much water can Alum Creek Lake hold?
Alum Creek Lake has a total capacity of 101 hm³.
Where is Alum Creek Lake reservoir located?
Alum Creek Lake is located in Ohio, United States, within the Ohio basin (coordinates 40.186°N, 82.967°W).
What is Alum Creek Lake used for?
Alum Creek Lake is used primarily for multiple purposes, and is managed by USACE.