State · United States · USGS · BOR · USACE · CDEC
Minnesota
64.3% average fill
Measured
7
Data pending
1
Volume stored
3,321 hm³
Measured capacity
5,162 hm³
Critical
1
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Reservoirs
Sorted by capacityRed Lake Dam
Updated 2026-07-30
Lake Winnibigoshish Dam
Updated 2026-07-30
Pokegama Lake Dam
Updated 2026-07-30
Big Sandy Lake Dam
Updated 2026-07-30
Gull Lake Dam
Updated 2026-07-30
Highway 75 Dam
criticalUpdated 2026-07-30
Orwell Dam
Updated 2026-07-30
Storage from official US gauges (USGS, USACE, Bureau of Reclamation, CDEC). Fill % uses design capacity from the National Inventory of Dams where available; a few sites without a match fall back to the 5-year maximum.
Major reservoirs — data pending
Pine River Dam at Cross Lake — data sourcing in progress
Storage is monitored by the US Army Corps of Engineers (USACE CWMS), but the live feed is currently stale — we are working to restore it. Known capacities: Pine River Dam at Cross Lake (0.1 km³).
About reservoirs in Minnesota
As of July 30, 2026, the reservoirs we track across Minnesota that report live levels hold roughly 3,321 hm³ of water — about 64.3% of their combined capacity. Taken together, Minnesota's reservoirs are within their normal operating range.
Across the region, 1 reservoir is at critically low levels. Orwell Dam is the fullest at 103.9%, while Highway 75 Dam is the lowest at 10.9%.
Storage figures for Minnesota come from USGS · USACE · BOR · CDEC; the most recent reading is from July 30, 2026. Each reservoir below links to its own page with full history and seasonal context.
Minnesota at a glance
- Reservoirs tracked
- 7
- Average fill
- 64.3%
- Water stored
- 3,321 hm³
- Combined capacity
- 5,162 hm³
- At critically low levels
- 1
- Fullest
- Orwell Dam (103.9%)
- Lowest
- Highway 75 Dam (10.9%)
- Last updated
- July 30, 2026
Frequently asked questions
How full are reservoirs in Minnesota right now?
As of July 30, 2026, the reservoirs tracked in Minnesota that report live levels are 64.3% full overall, holding about 3,321 hm³ of water.
How many reservoirs are there in Minnesota?
reservoirs.earth tracks 7 reservoirs in Minnesota, with a combined storage capacity of 5,162 hm³.
Which reservoir in Minnesota is the fullest?
Orwell Dam is currently the fullest reservoir in Minnesota, at 103.9% of capacity.
Which reservoir in Minnesota is the lowest?
Highway 75 Dam is currently the lowest in Minnesota, at 10.9% of capacity.
Where does the reservoir data for Minnesota come from?
All storage figures for Minnesota come from USGS · USACE · BOR · CDEC, an official source, last updated July 30, 2026.