Lake Sakakawea Water Level Today
North Dakota · near Mandan · Below full pool
- Elevation
- 1,824.36 ft
- From full pool
- −13.14 ft
- Percent of pool
- n/a
- 24-hour change
- +0.07 ft
- 7-day change
- −0.14 ft
- Reading
- Sep 21, 2026 · USACE
Last year at Lake Sakakawea
Lake Sakakawea is 13.14 ft below full pool, at 1,824.36 ft, up 0.07 ft in the last 24 hours. The top of the flood pool is 29.6 ft higher, at 1,854.00 ft.
Over the last 7 days the level fell 0.14 ft, and over 30 days it fell 1.64 ft. In the 400 days of readings on this page the high was 1,833.62 ft on Aug 18, 2025 and the low was 1,824.31 ft on Sep 20, 2026, a range of 9.31 ft.
The reading is the U.S. Army Corps of Engineers gauge at Garrison Dam & Reservoir, near Mandan, taken Sep 21, 2026 and referenced to the NGVD29 datum. This page is rebuilt once a day from the agency feed; it is not a live gauge, so during a fast rise or a scheduled release check the USACE page for hourly values.
Lake Sakakawea pool elevations
| Current elevation | 1,824.36 ft |
|---|---|
| Full pool (top of conservation) | 1,837.50 ft |
| Top of flood pool | 1,854.00 ft |
| Top of dam | 1,875.00 ft |
| Inflow | 11,000 cfs |
| Outflow | 12,491 cfs |
| 30-day change | −1.64 ft |
| 1-year high | 1,833.62 ft (Aug 18, 2025) |
| 1-year low | 1,824.31 ft (Sep 20, 2026) |
| Vertical datum | NGVD29 |
| Operating agency | U.S. Army Corps of Engineers, NWDM district |
Source: U.S. Army Corps of Engineers. Read what full pool and flood pool mean.
More lakes in North Dakota
- Bowman-Haley Reservoir 2,748.73 ft, −6.07 ft from full
- Heart Butte Reservoir 2,057.57 ft, −6.93 ft from full
- Jamestown Reservoir 1,430.00 ft, +2.00 ft from full
- Lake Audubon 1,846.54 ft, −0.46 ft from full
- Pipestem Reservoir 1,442.62 ft, +0.12 ft from full
Lake Sakakawea level questions
What is the water level of Lake Sakakawea today?
Lake Sakakawea is at 1,824.36 ft as of Sep 21, 2026, −13.14 ft relative to full pool (1,837.50 ft). The 24-hour change is +0.07 ft.
What is full pool at Lake Sakakawea?
Full pool, the top of the conservation pool, is 1,837.50 ft (NGVD29). Above that, water is stored temporarily in the flood pool up to 1,854.00 ft.
Is Lake Sakakawea rising or falling?
Over the last 24 hours the level is +0.07 ft; over 7 days it fell 0.14 ft, and over 30 days it fell 1.64 ft.
Where does this Lake Sakakawea level come from?
From the U.S. Army Corps of Engineers (USACE) public data feed for Garrison Dam & Reservoir. Lake Levels Today republishes the agency's daily value without adjustment and links to the source below.