Lake Oahe Water Level Today
South Dakota · near Pierre · Below full pool
- Elevation
- 1,592.17 ft
- From full pool
- −15.33 ft
- Percent of pool
- n/a
- 24-hour change
- −0.13 ft
- 7-day change
- −0.26 ft
- Reading
- Sep 21, 2026 · USACE
Last year at Lake Oahe
Lake Oahe is 15.33 ft below full pool, at 1,592.17 ft, down 0.13 ft in the last 24 hours. The top of the flood pool is 27.8 ft higher, at 1,620.00 ft.
Over the last 7 days the level fell 0.26 ft, and over 30 days it fell 2.56 ft. In the 400 days of readings on this page the high was 1,602.50 ft on Mar 15, 2026 and the low was 1,592.25 ft on Sep 21, 2026, a range of 10.25 ft.
The reading is the U.S. Army Corps of Engineers gauge at Oahe Dam & Reservoir, near Pierre, 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 Oahe pool elevations
| Current elevation | 1,592.17 ft |
|---|---|
| Full pool (top of conservation) | 1,607.50 ft |
| Top of flood pool | 1,620.00 ft |
| Top of dam | 1,660.00 ft |
| Inflow | 14,000 cfs |
| Outflow | 38,593 cfs |
| 30-day change | −2.56 ft |
| 1-year high | 1,602.50 ft (Mar 15, 2026) |
| 1-year low | 1,592.25 ft (Sep 21, 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 South Dakota
- Lake Francis Case 1,353.60 ft, +3.60 ft from full
- Lewis and Clark Lake 1,207.51 ft, +3.01 ft from full
- Lake Sharpe 1,420.87 ft, +0.87 ft from full
- Cold Brook Reservoir 3,585.27 ft, +0.27 ft from full
- Cottonwood Springs Reservoir 3,848.73 ft, −26.27 ft from full
- Pactola Reservoir 4,558.11 ft, −22.09 ft from full
Lake Oahe level questions
What is the water level of Lake Oahe today?
Lake Oahe is at 1,592.17 ft as of Sep 21, 2026, −15.33 ft relative to full pool (1,607.50 ft). The 24-hour change is −0.13 ft.
What is full pool at Lake Oahe?
Full pool, the top of the conservation pool, is 1,607.50 ft (NGVD29). Above that, water is stored temporarily in the flood pool up to 1,620.00 ft.
Is Lake Oahe rising or falling?
Over the last 24 hours the level is −0.13 ft; over 7 days it fell 0.26 ft, and over 30 days it fell 2.56 ft.
Where does this Lake Oahe level come from?
From the U.S. Army Corps of Engineers (USACE) public data feed for Oahe Dam & Reservoir. Lake Levels Today republishes the agency's daily value without adjustment and links to the source below.