Rivers in Illinois
Rock River at Rockton
Below flood stage
7.05ftStage
Observed Tue, Sep 22, 2:30 AM CDT
- Flood stage
- 10.00 ft
- Record crest
- 15.54 ft1975
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 14.00 ft |
| Moderate flood | 11.00 ft |
| Minor flood | 10.00 ft |
| Action | 8.50 ft |
- 17.50 ftStructures threatened along Hawick Street in downtown Rockton.
- 17.00 ftRockton Road is threatened west of Rockton.
- 15.00 ftHawick Street threatened near Settlers Park in Rockton.
- 14.00 ftLow-lying structures threatened off Main Street in Rockton. Roscoe Road threatened west of Roscoe. Prairie Hill Road inundated north of Rockton.
- 13.50 ftOld River Road threatened west of Roscoe Bridge.
- 12.00 ftMultiple low-lying roads threatened along the river in Roscoe.
- 10.50 ftEdgemere Terrace threatened near Roscoe.
- 10.00 ftLow-lying structures are threatened along Edgemere Terrace near Roscoe.
- 9.00 ftLow-lying areas of Settlers Park in Rockton are inundated.
- 8.00 ftWater overflows low-lying banks along Edgemere Terrace near Roscoe.
- 7.00 ftLow-lying areas of Riverside Park near Roscoe are inundated.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | 9% |
| Moderate flooding | 8% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 28, 2026.
Crest history
92 crests on NOAA’s list since 1904.
| # | Date | Stage |
|---|---|---|
| 1 | March 25, 1975 | 15.54 ft |
| 2 | March 17, 2019 | 15.13 ft |
| 3 | March 22, 1904 | 14.80 ft |
| 4 | June 17, 2008 | 14.72 ft |
| 5 | April 4, 1959 | 14.08 ft |
| 6 | March 20, 1948 | 13.82 ft |
| 7 | October 7, 2018 | 13.77 ft |
| 8 | February 26, 2018 | 13.51 ft |
| 9 | April 2, 1960 | 13.49 ft |
| 10 | April 21, 2013 | 13.46 ft |
| 11 | April 22, 1973 | 13.40 ft |
| 12 | July 29, 2010 | 13.39 ft |
| 13 | July 28, 2017 | 13.14 ft |
| 14 | October 7, 2019 | 13.00 ft |
| 15 | March 16, 1943 | 12.88 ft |
| 16 | April 21, 1993 | 12.84 ft |
| 17 | April 2, 1979 | 12.75 ft |
| 18 | June 14, 2000 | 12.66 ft |
| 19 | March 26, 1905 | 12.56 ft |
| 20 | March 3, 1906 | 12.30 ft |
| 21 | January 9, 1946 | 12.24 ft |
| 22 | September 9, 2018 | 12.15 ft |
| 23 | March 1, 1985 | 12.07 ft |
| 24 | February 4, 1988 | 12.05 ft |
| 25 | June 27, 2013 | 11.96 ft |
Most recent crests
- July 17, 2024: 11.25 ft
- June 6, 2024: 9.14 ft
- April 8, 2024: 10.40 ft
- April 5, 2023: 9.15 ft
- March 6, 2023: 9.12 ft
- December 26, 2022: 8.91 ft
- May 24, 2020: 9.23 ft
- March 29, 2020: 10.02 ft
- October 7, 2019: 13.00 ft
- September 13, 2019: 10.03 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the North Central River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. 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.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.