Major Flood
15.5 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
19.5 ft
Shirland Community School and other municipal buildings are threatened in Shirland.
19 ft
IL-70 (Trask Bridge Road) is threatened east of the river between Pecatonica and Harrison.
18.5 ft
Structures threatened near the river in Pecatonica.
17.5 ft
Residences are threatened along Harrison Road in Harrison. Meridian Road is threatened south of the river east of Shirland.
17 ft
Telegraph Road is threatened east of Pecatonica. IL-75 is threatened west of Harrison. Harrison Road is threatened in Harrison.
16.5 ft
Residences are threatened along Hartlien Road in Shirland.
16 ft
Water treatment plant property in Pecatonica is threatened.
15 ft
Harrison Road (Mitchell Street) threatened between Shirland and Harrison. Widespread inundation of the floodplain reaches up to half mile from the river near Shirland.
14.5 ft
Pecatonica Road and Blair Road are threatened north of Pecatonica.
14 ft
Structures threatened at Rivers Edge Campground east of Shirland.
12 ft
Low-lying sections of the Winnebago County Fairgrounds are inundated. Low-lying sections of Rivers Edge Campground are inundated east of Shirland.
Impact statements from the National Weather Service, describing what typically happens at each water level.
Low-Water Impacts
2.5
Approximate stage of the 1-in-10 annual chance flow (7-day average).
What happens as water levels drop, per the National Weather Service.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Mar 24, 1975 | 18.08 ft | — |
| Apr 3, 1959 | 17.45 ft | 16,600 cfs |
| Apr 2, 1960 | 17.08 ft | 16,000 cfs |
About This Gauge
USGS Site
NWS LID
SIRI2
River
Pecatonica River
County
Winnebago, IL
Coordinates
42.4381°N, 89.1750°W
Get Flood Alerts for Pecatonica 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 Pecatonica River near Shirland?
The Pecatonica River near Shirland gauge is maintained by USGS (site 05437050) 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 Pecatonica River near Shirland?
The NWS-defined flood stage for Pecatonica River near Shirland is 12 feet. Action stage begins at 11 feet. Moderate flooding starts at 14 feet, and major flooding at 15.5 feet.
How do I get alerts when Pecatonica River rises?
Download StormCast free on Google Play, go to River Gauges, and add Pecatonica River near Shirland 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 Pecatonica River near Shirland gauge located?
The gauge is located in Winnebago County, Illinois at coordinates 42.4381°N, 89.1750°W. USGS site number: 05437050. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- River forecasts for this location take into account past and future precipitation. The stages/flows that will occur may be different if future rainfall is different than forecast.