Major Flood
20 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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This is an NWS forecast point (LID: LNSI4). Live data may be limited. View on NWS AHPS →
FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
19 ft
Minor Flood
17 ft
Action Stage
12 ft
What Floods at Each Level
24 ft
The water reaches the top of the dikes.
23 ft
Interstate Power steam plant becomes inoperative.
22.5 ft
The water reaches the flood of record set in 1965.
21 ft
Dairyland Power becomes inoperative.
20 ft
The Wisconsin Highway 82 river crossing between Highway 35 and Lansing is closed.
19.8 ft
Water from the storm sewer system covers the 700 block of South Front Street.
18.8 ft
Water begins to cover Highway X52 by the wastewater treatment plant.
18.6 ft
Water from the storm sewer system covers the 400 block of South Front Street.
18.2 ft
Lock and Dam 9 goes out of operation.
17.89 ft
Water from the storm sewer system reaches the 300 and 500 blocks of South Front Street.
17.6 ft
Water from the storm sewer system covers the 600 block of South Front Street.
14.9 ft
River water back flows into Hogan Park by the sewer by-pass.
14.5 ft
River water back flows onto the ball park diamond via the lift station bypass.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Apr 23, 1965 | 22.5 ft | — |
| Apr 21, 2001 | 19.93 ft | — |
| Jun 19, 1880 | 19.9 ft | — |
About This Gauge
NWS LID
LNSI4
River
Mississippi River
County
Allamakee, IA
Coordinates
43.3603°N, 91.2131°W
Get Flood Alerts for Mississippi River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Mississippi River at Lansing - Pool 9?
The Mississippi River at Lansing - Pool 9 gauge is maintained by USGS and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Mississippi River at Lansing - Pool 9?
The NWS-defined flood stage for Mississippi River at Lansing - Pool 9 is 17 feet. Action stage begins at 12 feet. Moderate flooding starts at 19 feet, and major flooding at 20 feet.
How do I get alerts when Mississippi River rises?
Download StormCast free on Google Play, go to River Gauges, and add Mississippi River at Lansing - Pool 9 to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Mississippi River at Lansing - Pool 9 gauge located?
The gauge is located in Allamakee County, Iowa at coordinates 43.3603°N, 91.2131°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Mississippi River
On This River
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Source & Notes
Data provided by: Observations courtesy of U.S. Army Corps of Engineers
- 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.