Rivers in Illinois
Rock River at Latham Park
Below flood stage
6.15ftStage
Observed Tue, Sep 22, 2:30 AM CDT
- Flood stage
- 9.00 ft
- Record crest
- 14.70 ft1975
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 13.50 ft |
| Moderate flood | 11.00 ft |
| Minor flood | 9.00 ft |
| Action | 8.00 ft |
- 21.00 ftBauer Parkway is threatened in Machesney Park. Riverside Boulevard is threatened in Loves Park.
- 18.50 ftRalston Road/Latham Road is threatened near the river in Machesney Park. Widespread inundation of structures and roadways reaches up to half mile from the river in Machesney Park.
- 17.00 ftGleasman Road is threatened east of Old River Road north of Machesney Park. Evelyn Avenue and Forest Grove Street are threatened in Loves Park.
- 16.00 ftNumerous structures are threatened along Park Ridge Road in Loves Park.
- 15.50 ftPark Ridge Road is threatened in Loves Park.
- 14.50 ftNumerous residences are threatened along Queen Oaks Drive in Machesney Park.
- 13.50 ftNumerous residences are threatened along Ritter Drive, along Ventura Boulevard north of Ralston Road, and along Shore Drive south of Bauer Parkway in Machesney Park. Residences are threatened along Browns Beach Road in north Rockford. Low-lying structures are threatened along Park Ridge Road in Loves Park.
- 13.00 ftVentura Boulevard is threatened north of Ralston Road in Machesney Park.
- 12.50 ftResidences threatened along Harbor Oaks Drive north of Machesney Park. Numerous residences are threatened near the river and Shore Drive. Low-lying sections of Rockford Country Club are inundated.
- 12.00 ftLow-lying sections of Shorewood Park are inundated in Loves Park.
- 11.50 ftQueen Oaks Drive is threatened in Machesney Park. Lower-level of elevated structures threatened along Harbor Lights Court west of Machesney Park. Ritter Drive is threatened north of Baldwin Drive in Machesney Park.
- 11.00 ftLow-lying sections of Harbor Oaks Drive are threatened in north Machesney Park. Low-lying residences are threatened along Queen Oaks Drive in Machesney Park. Browns Beach Road is threatened in north Rockford. Lower parking lot of Sportscore One is inundated in north Rockford.
- 10.50 ftLow-lying sections of Shore Drive are threatened between Wilson Avenue and Park Road in Machesney Park. Water overflows low-lying river banks along East Drive in Loves Park. Low-lying areas of Martin Memorial Park are inundated.
- 10.00 ftProperty and trails near the boat ramp at Bauer Parkway are threatened. Illinois DNR considers closure of the Rock River.
- 9.50 ftLow-lying areas of Sportscore One are inundated in north Rockford.
- 9.00 ftBoathouses threatened along the river in Machesney Park.
- 8.00 ftWater overflows low-lying river banks along Baldwin Drive and North Pier Drive in Machesney Park. Winnebago County considers "no wake" order for the Rock River.
- 7.50 ftLow-lying agricultural land is inundated in north Machesney Park.
- 7.00 ftWater overflows low-lying river banks along Ventura Boulevard in Machesney Park.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | 10% |
| Moderate flooding | 7% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 28, 2026.
Crest history
37 crests on NOAA’s list since 1959.
| # | Date | Stage |
|---|---|---|
| 1 | March 26, 1975 | 14.70 ft |
| 2 | March 17, 2019 | 14.46 ft |
| 3 | June 18, 2008 | 14.30 ft |
| 4 | April 23, 1973 | 13.30 ft |
| 5 | October 7, 2018 | 13.22 ft |
| 6 | July 29, 2010 | 12.91 ft |
| 7 | April 22, 2013 | 12.82 ft |
| 8 | February 26, 2018 | 12.80 ft |
| 9 | July 28, 2017 | 12.55 ft |
| 10 | April 3, 1979 | 12.30 ft |
| 11 | October 7, 2019 | 12.23 ft |
| 12 | April 5, 1959 | 12.10 ft |
| 13 | January 14, 2016 | 11.83 ft |
| 14 | June 27, 2013 | 11.55 ft |
| 15 | September 9, 2018 | 11.48 ft |
| 16 | March 29, 2009 | 10.90 ft |
| 17 | August 26, 2007 | 10.74 ft |
| 18 | June 4, 2004 | 10.61 ft |
| 19 | July 17, 2024 | 10.27 ft |
| 20 | February 5, 2019 | 10.22 ft |
| 21 | September 13, 2019 | 9.58 ft |
| 22 | March 29, 2020 | 9.29 ft |
| 23 | April 9, 2024 | 9.20 ft |
| 24 | May 30, 2019 | 8.93 ft |
| 25 | February 19, 2005 | 8.91 ft |
Most recent crests
- July 17, 2024: 10.27 ft
- June 23, 2024: 8.78 ft
- June 6, 2024: 8.12 ft
- April 9, 2024: 9.20 ft
- April 5, 2023: 8.08 ft
- December 29, 2022: 8.50 ft
- May 24, 2020: 8.34 ft
- March 29, 2020: 9.29 ft
- October 7, 2019: 12.23 ft
- September 13, 2019: 9.58 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.