Rivers in Illinois
Fox River at McHenry (Stratton Lock and Dam) tailwater
Action stage
3.31ftStage
Observed Fri, Oct 2, 12:15 PM CDT
- Flood stage
- 4.00 ft
- Record crest
- 9.00 ft1938
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 7.00 ft |
| Moderate flood | 6.00 ft |
| Minor flood | 4.00 ft |
| Action | 3.00 ft |
- 12.00 ftMcHenry Waste Water Treatment Plant property is threatened. Miller Road is threatened west of the river in McHenry.
- 11.00 ftMultiple structures along the river are threatened in downtown McHenry. River Road is threatened at IL-120 (Elm Street) in McHenry.
- 10.50 ftIL-176 is threatened near Holiday Hills.
- 9.00 ftCountry Club Drive, Emerald Drive, and River Road near Chapel Hill Road are threatened in McHenry.
- 8.50 ftResidences threatened along Country Club Drive and Emerald Drive in McHenry. Roadways threatened at Miller Riverfront Park in McHenry.
- 8.00 ftResidences along River Road are threatened near Mary Lane in McHenry. Backwater causes Boone Creek to threaten parking lots in downtown McHenry. Numerous marinas are threatened in McHenry.
- 7.00 ftLow-lying sections of Miller Riverfront Park inundated in McHenry.
- 6.00 ftBackwater causes Boone Creek to inundate sections of the McHenry river walk.
- 5.50 ftWater reaches bankfull along Country Club Drive and Emerald Drive in McHenry.
- 5.00 ftRoadways and structures may be threatened in Frisch's Riverside subdivision along Lagoon and River Shore Drives.
- 4.50 ftRoadways and structures may be threatened in the Holiday Hills subdivison along Holiday Drive.
- 3.50 ftBoathouses threatened along the river downstream of the dam.
- 3.00 ftFox Waterway Agency considers "no wake" order for the Fox River from Algonquin Dam to Stratton Dam.
Flood outlook
Significant river flooding is possible here through October 7.
Weather conditions indicate that significant flooding could occur; it is neither certain nor imminent.
The five-day outlook is from the Weather Prediction Center with the River Forecast Centers.
Crest history
36 crests on NOAA’s list since 1938.
| # | Date | Stage |
|---|---|---|
| 1 | July 5, 1938 | 9.00 ft |
| 2 | July 22, 2017 | 7.65 ft |
| 3 | April 23, 2013 | 7.64 ft |
| 4 | October 2, 1986 | 7.20 ft |
| 5 | April 2, 1979 | 7.04 ft |
| 6 | April 5, 1960 | 7.00 ft |
| 7 | August 27, 2007 | 6.95 ft |
| 8 | May 6, 1973 | 6.90 ft |
| 9 | April 24, 1993 | 6.90 ft |
| 10 | June 19, 2008 | 6.85 ft |
| 11 | September 17, 2019 | 6.43 ft |
| 12 | March 12, 1974 | 6.40 ft |
| 13 | June 17, 2000 | 6.22 ft |
| 14 | March 30, 1962 | 6.20 ft |
| 15 | May 23, 2020 | 6.20 ft |
| 16 | October 8, 2019 | 5.93 ft |
| 17 | May 23, 1974 | 5.90 ft |
| 18 | March 20, 2019 | 5.63 ft |
| 19 | June 27, 2018 | 5.55 ft |
| 20 | October 12, 2018 | 5.55 ft |
| 21 | May 4, 2020 | 5.49 ft |
| 22 | April 8, 2024 | 5.38 ft |
| 23 | May 12, 2019 | 5.19 ft |
| 24 | June 29, 2013 | 5.16 ft |
| 25 | February 27, 2018 | 4.94 ft |
Most recent crests
- April 8, 2024: 5.38 ft
- March 6, 2023: 4.10 ft
- May 23, 2020: 6.20 ft
- May 4, 2020: 5.49 ft
- October 8, 2019: 5.93 ft
- September 17, 2019: 6.43 ft
- June 1, 2019: 4.93 ft
- May 12, 2019: 5.19 ft
- March 20, 2019: 5.63 ft
- October 12, 2018: 5.55 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the North Central River Forecast Center. Forecasts are not available. Only observed stages are available for this point.
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.