Reservoir · Ohio · United States · USACE CWMS
Delaware Lake
102.0% full
Capacity
17.27 hm³
Volume stored
18 hm³
Vs month average
99% of normal
Coordinates
40.359°N, 83.069°W
Last updated
2026-10-28
Current fill
102.0%vs 7 days ago
-0.7 pplosing
vs 1 year ago
N/A7-day trend
→stable
Drought context
Storage vs October average
99%of normal
102.0% full on 2026-10-28, against an average of 103.3% for October across 2 years of readings (-1.3 points).
Drought Monitor at this site · 20 October 2026
Nonenot in a drought category
Delaware Lake's coordinates fall outside every category on the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. Ohio drought figures →
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: 2026-10-28.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 40.359°N, 83.069°W · Open in Google Maps
About Delaware Lake
As of October 28, 2026, Delaware Lake is filled to 102.0% of its total capacity, holding 17.62 hm³ of water out of a maximum 17.27 hm³. At this level the reservoir is effectively full.
Over the most recent week on record the fill level has held broadly steady (-0.7 pp).
Across the readings we hold for Delaware Lake — 88 data points between October 29, 2021 and October 28, 2026 — the level has ranged from a low of 61.1% (December 18, 2021) to a high of 105.0% (September 12, 2026).
It is operated by USACE primarily for multiple purposes. It is at 40.359°N, 83.069°W.
Key facts
- Current fill level
- 102.0% of total capacity
- Water stored
- 17.62 hm³
- Total capacity
- 17.27 hm³
- 7-day change
- ▼ 0.7 pp
- Primary use
- Multipurpose
- Operator
- USACE
- Coordinates
- 40.359°N, 83.069°W
- Last updated
- October 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Oct 2026 | 102.0% | 17.62 |
| 27 Oct 2026 | 102.0% | 17.62 |
| 26 Oct 2026 | 102.2% | 17.65 |
| 25 Oct 2026 | 102.3% | 17.67 |
| 24 Oct 2026 | 102.4% | 17.69 |
| 23 Oct 2026 | 102.6% | 17.72 |
| 22 Oct 2026 | 102.7% | 17.73 |
| 21 Oct 2026 | 102.7% | 17.73 |
| 20 Oct 2026 | 102.8% | 17.75 |
| 19 Oct 2026 | 102.9% | 17.77 |
| 18 Oct 2026 | 102.9% | 17.77 |
| 17 Oct 2026 | 103.0% | 17.78 |