Lock and Dam 4 Fishing Report
Based on live releases/levels and local weather.
Live Lock and Dam 4 fishing conditions near Alma, WI: USACE release, reservoir level, and local weather. Use the latest CFS and level trends to time your trip and pick safe access.
Lock and Dam 4 snapshot
USACE Owned and Maintained Lock and Dam 4 sits near Alma, WI and is monitored by the U.S. Army Corps of Engineers MVP district. Coordinates: 44.3275°, -91.9199°. Also known as Lock and Dam 04 at Mississippi River 9 foot Channel Navigation Project.
- Latest release
- 23,846 CFS
- Recorded 2026-06-19 07:15 UTC
- Latest lake level
- 666.61 ft
- Recorded 2026-06-19 07:15 UTC
Very high release: dangerous near outlets and below the dam. Avoid swift water and follow posted warnings.
Source: U.S. Army Corps of Engineers CWMS public feeds. See the Lock and Dam 4 water level & flow charts for 7‑day history.