RIVER GAUGE · MISSISSIPPI RIVER
Mississippi River below Lock and Dam 4 - Alma
Buffalo County, Wisconsin
Water level4.45 ft
Flow17,900 cfs
Last readingSep 16, 2026, 4:15 PM UTC (last recorded)
Action10 ft
Minor flood16 ft
Moderate flood17 ft
Major flood18 ft
The past week
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What floods at each level
- 20 ft
Water reaches the top of the protective earthen dike.
- 19.8 ft
The water reaches the flood of record set in 1965.
- 16.5 ft
Agriculture and recreational land is flooded.
- 16 ft
Lock gates and walls at Dam 4 go underwater.
- 15.5 ft
Lock and Dam 4 is closed to navigation.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Apr 18, 1965 | 19.78 ft | 269,000 cfs |
| Apr 16, 2001 | 18.15 ft | — |
| Apr 17, 1969 | 17.53 ft | — |
More on Mississippi River
DownstreamMississippi River at Alma - Pool 5
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