Reservoir · Minnesota · United States · USACE CWMS
Orwell Dam
103.9% full
Capacity
9.93 hm³
Volume stored
10 hm³
Coordinates
46.217°N, 96.178°W
Last updated
2026-07-30
Current fill
103.9%vs 7 days ago
+0.3%gaining
vs 1 year ago
-1.1%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. 46.217, -96.178 · Open in Google Maps
About Orwell Dam
As of July 30, 2026, Orwell Dam is filled to 103.9% of its total capacity, holding roughly 10 hm³ of water out of a maximum 10 hm³. At this level the reservoir is effectively full.
Over the most recent week on record the fill level has held broadly steady (+0.3 pts), and it is 1.1 points below its level on the same date a year earlier.
Across the readings we hold for Orwell Dam — 100 data points between July 31, 2021 and July 30, 2026 — the level has ranged from a low of 99.2% (August 19, 2021) to a high of 105.0% (July 31, 2021).
It is operated by USACE primarily for multiple purposes. It lies within the Minnesota basin at 46.217°N, 96.178°W.
Key facts
- Current fill level
- 103.9%
- Water stored
- 10 hm³
- Total capacity
- 10 hm³
- 7-day change
- ▲ 0.3 pts
- Year-on-year
- ▼ 1.1 pts
- Primary use
- Multipurpose
- River basin
- Minnesota
- Operator
- USACE
- Coordinates
- 46.217°N, 96.178°W
- Last updated
- July 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Jul 2026 | 103.9% | 10 |
| 29 Jul 2026 | 103.6% | 10 |
| 28 Jul 2026 | 104.0% | 10 |
| 27 Jul 2026 | 105.0% | 10 |
| 26 Jul 2026 | 105.0% | 11 |
| 25 Jul 2026 | 105.0% | 11 |
| 24 Jul 2026 | 104.9% | 10 |
| 23 Jul 2026 | 104.7% | 10 |
| 22 Jul 2026 | 105.0% | 10 |
| 21 Jul 2026 | 105.0% | 10 |
| 20 Jul 2026 | 105.0% | 11 |
| 19 Jul 2026 | 105.0% | 11 |
Frequently asked questions
What is the current water level of Orwell Dam?
As of July 30, 2026, Orwell Dam is at 103.9% of its capacity, holding approximately 10 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Orwell Dam reservoir full?
Orwell Dam is essentially full, sitting at 103.9% of capacity as of July 30, 2026.
Is the water level at Orwell Dam rising or falling?
The level at Orwell Dam has been broadly stable over the latest week on record (+0.3 points).
How much water can Orwell Dam hold?
Orwell Dam has a total capacity of 10 hm³.
Where is Orwell Dam reservoir located?
Orwell Dam is located in Minnesota, United States, within the Minnesota basin (coordinates 46.217°N, 96.178°W).
What is Orwell Dam used for?
Orwell Dam is used primarily for multiple purposes, and is managed by USACE.