Mississippi River at Clarksville Lock and Dam 24
Missouri — Water Level & Flood Stage
Located in Pike County, Missouri on the Mississippi River. Live water level data from USGS, updated every 15 minutes.
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: CLKM7). Live data may be limited. View on NWS AHPS →
Flood Stages
Major Flood
33 ft
Moderate Flood
31 ft
Minor Flood
25 ft
Action Stage
23 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
153000 ft
This flow is approximately where CLKM7 goes to "open river" conditions.
38.1 ft
Sny Island Cell #4 levee is overtopped.
37.1 ft
Sny Island Cell #3 levee is overtopped.
36.25 ft
Highway 79 is closed from one mile south of Annada to two miles north of Annada. Route H is closed from Annada to about one mile west of Annada.
36 ft
Near this height, the top of the sewage treatment lagoon just south of town is overtopped.
35 ft
Near this height, the lock wall at Lock 24 is inundated.
34 ft
Route W (Kentucky Street) is closed for one block between Third Street and Highway 79. Also, near this height, the living areas of homes in the Port Marmac area begin flooding.
33 ft
Clarksville city businesses from 1st Street to 3rd Street begin to flood.
32.79 ft
IL route 96 from near Mozier to County Road 2 inundated and closed near this height.
32.5 ft
Near this level, the lock is closed to navigation.
32.29 ft
Route N is closed between Route D and Highway 79.
32 ft
Front Street begins to flood.
31.5 ft
Burlington Northern SF railroad tracks begin to flood. Also, Highway 79 is closed about a mile south of Clarksville.
31 ft
The Clarksville Boat Club, south of Lock & Dam 24, begins to flood. First Street begins flooding. A sand-filled barrier at the bottom of Howard Street is considered. In Hamburg, Illinois, Water Street floods.
30.8 ft
Near this height, Highway 79 is closed from Route N to about a mile northwest of that intersection.
30 ft
East bank (Illinois side) begins to flood.
29 ft
Water enters the parking lot entrance at the Clarksville Riverfront Park.
27.2 ft
Silo Park just northwest of Clarksville off Highway 79 begins flooding.
25.5 ft
State Route P east of Elsberry begins flooding just east of the levee.
25.3 ft
The road to Port Marmac, a riverside community of about 13 homes just south of Clarksville, begins flooding.
23.5 ft
Flooding begins in unprotected areas.
23 ft
At this approximate stage, the Corps will take gates out of the river, creating "open river" conditions. This corresponds to an approximate stage of 155,000 cfs.
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 |
|---|---|---|
| Jul 29, 1993 | 37.73 ft | — |
| Jul 29, 1993 | 37.73 ft | — |
| Jun 1, 2019 | 37.11 ft | 486,800 cfs |
| Jun 1, 2019 | 37.11 ft | 486,800 cfs |
| Apr 23, 1973 | 36.76 ft | — |
About This Gauge
NWS LID
CLKM7
River
Mississippi River
County
Pike, MO
Coordinates
39.3733°N, 90.9047°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 Clarksville Lock and Dam 24?
The Mississippi River at Clarksville Lock and Dam 24 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 Clarksville Lock and Dam 24?
The NWS-defined flood stage for Mississippi River at Clarksville Lock and Dam 24 is 25 feet. Action stage begins at 23 feet. Moderate flooding starts at 31 feet, and major flooding at 33 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 Clarksville Lock and Dam 24 to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the Mississippi River at Clarksville Lock and Dam 24 gauge located?
The gauge is located in Pike County, Missouri at coordinates 39.3733°N, 90.9047°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: U.S. Army Corps of Engineers, US 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.
- For the latest navigation status update from the U.S. Army Corps of Engineers-St. Louis District, <a href="http://www.mvs.usace.army.mil/Missions/Navigation/Status-Reports/">click here.</a>