Reservoir · Minnesota · United States · USACE CWMS
Lake Winnibigoshish Dam
82.4% full
Capacity
1,039.55 hm³
Volume stored
857 hm³
Coordinates
47.430°N, 94.050°W
Last updated
2026-07-30
Current fill
82.4%vs 7 days ago
0.0%stable
vs 1 year ago
+0.4%year-over-year
7-day trend
→stable
Data source: USACE CWMS — US Army Corps of Engineers — daily reservoir storage volume. Design capacity is unavailable for this site, so fill % is estimated against the 5-year maximum storage and may overstate fullness. 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. 47.430, -94.050 · Open in Google Maps
About Lake Winnibigoshish Dam
As of July 30, 2026, Lake Winnibigoshish Dam is filled to 82.4% of its total capacity, holding roughly 857 hm³ of water out of a maximum 1,040 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it sits close to where it was a year earlier.
Across the readings we hold for Lake Winnibigoshish Dam — 1369 data points between September 15, 2021 and July 30, 2026 — the level has ranged from a low of 72.5% (October 26, 2021) to a high of 100.0% (June 26, 2022). On average the reservoir is fullest around June and at its lowest around November.
It is operated by USACE primarily for multiple purposes. It lies within the Minnesota basin at 47.430°N, 94.050°W.
Key facts
- Current fill level
- 82.4%
- Water stored
- 857 hm³
- Total capacity
- 1,040 hm³
- 7-day change
- No change
- Year-on-year
- ▲ 0.4 pts
- Primary use
- Multipurpose
- River basin
- Minnesota
- Operator
- USACE
- Coordinates
- 47.430°N, 94.050°W
- Last updated
- July 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Jul 2026 | 82.4% | 857 |
| 29 Jul 2026 | 82.4% | 856 |
| 28 Jul 2026 | 82.5% | 857 |
| 27 Jul 2026 | 82.5% | 858 |
| 26 Jul 2026 | 82.4% | 856 |
| 25 Jul 2026 | 82.6% | 859 |
| 24 Jul 2026 | 82.1% | 853 |
| 23 Jul 2026 | 82.4% | 857 |
| 22 Jul 2026 | 82.5% | 858 |
| 21 Jul 2026 | 83.1% | 864 |
| 20 Jul 2026 | 84.3% | 876 |
| 19 Jul 2026 | 83.2% | 865 |
Frequently asked questions
What is the current water level of Lake Winnibigoshish Dam?
As of July 30, 2026, Lake Winnibigoshish Dam is at 82.4% of its capacity, holding approximately 857 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Lake Winnibigoshish Dam reservoir full?
No. As of July 30, 2026, Lake Winnibigoshish Dam is high at 82.4% of its capacity, so it is not full.
Is the water level at Lake Winnibigoshish Dam rising or falling?
The level at Lake Winnibigoshish Dam has been broadly stable over the latest week on record (0.0 points).
How much water can Lake Winnibigoshish Dam hold?
Lake Winnibigoshish Dam has a total capacity of 1,040 hm³.
Where is Lake Winnibigoshish Dam reservoir located?
Lake Winnibigoshish Dam is located in Minnesota, United States, within the Minnesota basin (coordinates 47.430°N, 94.050°W).
What is Lake Winnibigoshish Dam used for?
Lake Winnibigoshish Dam is used primarily for multiple purposes, and is managed by USACE.