Mississippi River at Lansing - Pool 9
Observed Wed, Sep 30, 4:15 AM CDT
- Flood stage
- 17.00 ft
- Forecast crest
- 8.00 ftWed, Sep 30, 7:00 AM CDT
- Record crest
- 22.50 ft1965
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 20.00 ft |
| Moderate flood | 19.00 ft |
| Minor flood | 17.00 ft |
| Action | 12.00 ft |
- 24.00 ftThe water reaches the top of the dikes.
- 23.00 ftInterstate Power steam plant becomes inoperative.
- 22.50 ftThe water reaches the flood of record set in 1965.
- 21.00 ftDairyland Power becomes inoperative.
- 20.00 ftThe Wisconsin Highway 82 river crossing between Highway 35 and Lansing is closed.
- 19.80 ftWater from the storm sewer system covers the 700 block of South Front Street.
- 18.80 ftWater begins to cover Highway X52 by the wastewater treatment plant.
- 18.60 ftWater from the storm sewer system covers the 400 block of South Front Street.
- 18.20 ftLock and Dam 9 goes out of operation.
- 17.89 ftWater from the storm sewer system reaches the 300 and 500 blocks of South Front Street.
- 17.60 ftWater from the storm sewer system covers the 600 block of South Front Street.
- 14.90 ftRiver water back flows into Hogan Park by the sewer by-pass.
- 14.50 ftRiver water back flows onto the ball park diamond via the lift station bypass.
Flood outlook
Chance of flooding, October to December
| Category | Chance |
|---|---|
| Minor flooding | Under 5% |
| Moderate flooding | Under 5% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 25, 2026.
Crest history
17 crests on NOAA’s list since 1880.
| # | Date | Stage |
|---|---|---|
| 1 | April 24, 1965 | 22.50 ft |
| 2 | April 21, 2001 | 19.93 ft |
| 3 | June 20, 1880 | 19.90 ft |
| 4 | April 28, 2023 | 19.61 ft |
| 5 | April 22, 1969 | 18.88 ft |
| 6 | June 30, 1993 | 18.46 ft |
| 7 | April 15, 1997 | 18.38 ft |
| 8 | April 23, 1952 | 18.14 ft |
| 9 | July 5, 2024 | 18.06 ft |
| 10 | April 4, 2019 | 17.89 ft |
| 11 | April 26, 2019 | 17.83 ft |
| 12 | May 4, 1975 | 17.76 ft |
| 13 | April 20, 1951 | 17.62 ft |
| 14 | April 18, 2011 | 17.61 ft |
| 15 | April 9, 1967 | 17.18 ft |
| 16 | May 1, 2019 | 17.03 ft |
| 17 | April 10, 1986 | 16.80 ft |
Most recent crests
- July 5, 2024: 18.06 ft
- April 28, 2023: 19.61 ft
- May 1, 2019: 17.03 ft
- April 26, 2019: 17.83 ft
- April 4, 2019: 17.89 ft
- April 18, 2011: 17.61 ft
- April 21, 2001: 19.93 ft
- April 15, 1997: 18.38 ft
- June 30, 1993: 18.46 ft
- April 10, 1986: 16.80 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the North Central River Forecast Center. Forecasts are issued routinely during the navigation season, and as needed at other times of the year. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service.