Lake Francis Case Water Level Today
South Dakota · near Mitchell · In the flood pool
- Elevation
- 1,353.60 ft
- From full pool
- +3.60 ft
- Percent of pool
- n/a
- 24-hour change
- +0.04 ft
- 7-day change
- −0.15 ft
- Reading
- Sep 21, 2026 · USACE
Last year at Lake Francis Case
Lake Francis Case is 3.60 ft above full pool, at 1,353.60 ft, in its flood pool, up 0.04 ft in the last 24 hours. The top of the flood pool is 21.4 ft higher, at 1,375.00 ft.
Over the last 7 days the level fell 0.15 ft, and over 30 days it fell 2.39 ft. In the 400 days of readings on this page the high was 1,356.45 ft on Jul 10, 2026 and the low was 1,336.54 ft on Nov 21, 2025, a range of 19.91 ft.
The reading is the U.S. Army Corps of Engineers gauge at Fort Randall Dam & Reservoir, near Mitchell, 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 Francis Case pool elevations
| Current elevation | 1,353.60 ft |
|---|---|
| Full pool (top of conservation) | 1,350.00 ft |
| Top of flood pool | 1,375.00 ft |
| Top of dam | 1,395.00 ft |
| Inflow | 13,000 cfs |
| Outflow | 30,703 cfs |
| 30-day change | −2.39 ft |
| 1-year high | 1,356.45 ft (Jul 10, 2026) |
| 1-year low | 1,336.54 ft (Nov 21, 2025) |
| 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 Oahe 1,592.17 ft, −15.33 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 Francis Case level questions
What is the water level of Lake Francis Case today?
Lake Francis Case is at 1,353.60 ft as of Sep 21, 2026, +3.60 ft relative to full pool (1,350.00 ft). The 24-hour change is +0.04 ft.
What is full pool at Lake Francis Case?
Full pool, the top of the conservation pool, is 1,350.00 ft (NGVD29). Above that, water is stored temporarily in the flood pool up to 1,375.00 ft.
Is Lake Francis Case rising or falling?
Over the last 24 hours the level is +0.04 ft; over 7 days it fell 0.15 ft, and over 30 days it fell 2.39 ft.
Where does this Lake Francis Case level come from?
From the U.S. Army Corps of Engineers (USACE) public data feed for Fort Randall Dam & Reservoir. Lake Levels Today republishes the agency's daily value without adjustment and links to the source below.