Major Flood
16.5 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
14 ft
Minor Flood
12 ft
Action Stage
11 ft
What Floods at Each Level
21 ft
Water affects most of Hillsdale and much of Erie. Water also reaches the bottom of the Illinois Highway 92 bridge at Joslin.
20 ft
Water affects several homes in Erie and affects the railroad tracks east of town.
19.5 ft
Water affects much of Barstow Road between Barstow and Illinois Highway 5.
19.2 ft
Water affects Barstow Road between Barstow and Illinois Highway 5.
19 ft
Water affects several homes in Hillsdale on Docia Street and on the county road south of town. Water also affects most houses in Osborn.
18.5 ft
Water affects the lowest sections of Moline Road east of Erie, as well as River Road.
18.39 ft
Water affects Osborn Road at Osborn.
18.3 ft
Water affects the railroad tracks near Osborn.
18 ft
Water reaches the top of the Zuma Creek levee upstream of Barstow. Water also affects a few homes in Erie and Moline Road east of town. Water affects a few homes on Docia Street in Hillsdale and on the county road south of town. Water also affects a few homes in Shady Beach.
17.7 ft
Water affects the railroad tracks south of Prophetstown.
17.5 ft
Water is across Broadway at Jackson Street in Cleveland.
16.5 ft
Water affects the lowest sections of Broadway and Main Street in Cleveland and affects a few homes.
16 ft
Water affects much of Barstow Road between Barstow and Osborn. Water also affects homes in Osborn.
15 ft
Water affects residences in the Thompson addition.
14 ft
Water affects residences in outlying areas immediately along the river including basements, yards, driveways, and access roads.
13.7 ft
Water affects Barstow Road between Barstow and Osborn.
13 ft
Flooding of unprotected agricultural land occurs. Water also affects Lundeens Landing Campground.
12.5 ft
Water affects some summer cottages along the river.
12 ft
Water affects low lying agricultural land.
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 |
|---|---|---|
| Jun 6, 2002 | 19.24 ft | 47,700 cfs |
| Apr 21, 2013 | 19.11 ft | 47,000 cfs |
| Feb 22, 1997 | 18.88 ft | 41,000 cfs |
About This Gauge
USGS Site
NWS LID
JOSI2
River
Rock River
County
Rock Island, IL
Coordinates
41.5561°N, 90.1853°W
Get Flood Alerts for Rock 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 Rock River near Joslin?
The Rock River near Joslin gauge is maintained by USGS (site 05446500) 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 Rock River near Joslin?
The NWS-defined flood stage for Rock River near Joslin is 12 feet. Action stage begins at 11 feet. Moderate flooding starts at 14 feet, and major flooding at 16.5 feet.
How do I get alerts when Rock River rises?
Download StormCast free on Google Play, go to River Gauges, and add Rock River near Joslin 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 Rock River near Joslin gauge located?
The gauge is located in Rock Island County, Illinois at coordinates 41.5561°N, 90.1853°W. USGS site number: 05446500. Data is provided by the U.S. Geological Survey and the National Weather Service.
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On This River
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Source & Notes
Data provided by: U.S. Geological Survey, Observations courtesy of U.S. Geological Survey, 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 48 hours into the future from the forecast issuance time.