Eau Galle Lake Water Level Today
Wisconsin · near Spring Valley · At full pool
- Elevation
- 940.23 ft
- From full pool
- +0.23 ft
- Percent of pool
- n/a
- 24-hour change
- −0.02 ft
- 7-day change
- +0.10 ft
- Reading
- Sep 21, 2026 · USACE
Last year at Eau Galle Lake
Eau Galle Lake is at full pool, 940.23 ft, down 0.02 ft in the last 24 hours. The top of the flood pool is 79.3 ft higher, at 1,019.50 ft.
Over the last 7 days the level rose 0.10 ft, and over 30 days it rose 0.11 ft. In the 399 days of readings on this page the high was 942.59 ft on Apr 28, 2026 and the low was 939.61 ft on Aug 28, 2025, a range of 2.98 ft.
The reading is the U.S. Army Corps of Engineers gauge at Eau Galle Dam, near Spring Valley, 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.
Eau Galle Lake pool elevations
| Current elevation | 940.23 ft |
|---|---|
| Full pool (top of conservation) | 940.00 ft |
| Top of flood pool | 1,019.50 ft |
| Top of dam | 1,040.15 ft |
| Inflow | 19 cfs |
| Outflow | 19 cfs |
| 30-day change | +0.11 ft |
| 1-year high | 942.59 ft (Apr 28, 2026) |
| 1-year low | 939.61 ft (Aug 28, 2025) |
| Vertical datum | NGVD29 |
| Operating agency | U.S. Army Corps of Engineers, MVP district |
Source: U.S. Army Corps of Engineers. Read what full pool and flood pool mean.
Eau Galle Lake level questions
What is the water level of Eau Galle Lake today?
Eau Galle Lake is at 940.23 ft as of Sep 21, 2026, +0.23 ft relative to full pool (940.00 ft). The 24-hour change is −0.02 ft.
What is full pool at Eau Galle Lake?
Full pool, the top of the conservation pool, is 940.00 ft (NGVD29). Above that, water is stored temporarily in the flood pool up to 1,019.50 ft.
Is Eau Galle Lake rising or falling?
Over the last 24 hours the level is −0.02 ft; over 7 days it rose 0.10 ft, and over 30 days it rose 0.11 ft.
Where does this Eau Galle Lake level come from?
From the U.S. Army Corps of Engineers (USACE) public data feed for Eau Galle Dam. Lake Levels Today republishes the agency's daily value without adjustment and links to the source below.