Big Muddy River at Murphysboro
Highest listed crest 40.47 ftFlood stage 22.0 ft78 crests since 1916
The Big Muddy River at Murphysboro crested at major flood stage 8 times among the 78 crests the National Weather Service lists from 1916 to 2025. The highest, 40.47 ft on May 3, 2011, was major flooding, 18.47 feet above flood stage. 1 other gauge on the Big Muddy River crested above flood stage within a week of it, 1 at its own highest listed crest.
The gauge
- Highest listed crest
- 40.47 ft
- May 3, 2011; 37,700 cubic feet per second
- Flood stage
- 22.0 ft
- Major flooding from 36.0 ft
- Crests at major
- 8
- 35th of 177 gauges in Illinois
- Most recent flood crest
- April 9, 2025
- 36.39 ft, major flooding
Flood stages
The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.
| Action stage | 20.0 | 2 | Feb 11, 1942 |
| Flood stage (minor) | 22.0 | 30 | May 13, 2024 |
| Moderate flood stage | 28.0 | 36 | Mar 29, 2023 |
| Major flood stage | 36.0 | 8 | Apr 9, 2025 |
Every listed crest
78 crests from 1916 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.
Crests at or above flood stage, by decade
- These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
- Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.
Highest crests
The 50 highest of 78 listed crests.
| 1 | May 3, 2011 | 40.47 | +18.47 | Major |
| 2 | May 12, 1961 | 39.03 | +17.03 | Major |
| 3 | May 6, 2017 | 38.56 | +16.56 | Major |
| 4 | May 2, 1996 | 37.65 | +15.65 | Major |
| 5 | Mar 23, 2008 | 37.24 | +15.24 | Major |
| 6 | May 5, 1983 | 36.85 | +14.85 | Major |
| 7 | Apr 9, 2025 | 36.39 | +14.39 | Major |
| 8 | Jan 2, 2016 | 36.11 | +14.11 | Major |
| 9 | Nov 19, 1993 | 35.60 | +13.60 | Moderate |
| 10 | Mar 15, 1935 | 34.06 | +12.06 | Moderate |
| 11 | Mar 6, 1979 | 34.00 | +12.00 | Moderate |
| 12 | Jan 18, 1937 | 33.86 | +11.86 | Moderate |
| 13 | Mar 16, 2006 | 33.80 | +11.80 | Moderate |
| 14 | May 17, 1933 | 33.51 | +11.51 | Moderate |
| 15 | May 18, 2002 | 33.49 | +11.49 | Moderate |
| 16 | Apr 3, 1985 | 33.39 | +11.39 | Moderate |
| 17 | Jan 9, 1993 | 33.19 | +11.19 | Moderate |
| 18 | Aug 22, 1946 | 33.17 | +11.17 | Moderate |
| 19 | Apr 3, 1945 | 32.57 | +10.57 | Moderate |
| 20 | Apr 26, 1973 | 32.08 | +10.08 | Moderate |
| 21 | Mar 14, 1964 | 31.99 | +9.99 | Moderate |
| 22 | Feb 3, 1969 | 31.82 | +9.82 | Moderate |
| 23 | Apr 1, 1977 | 31.78 | +9.78 | Moderate |
| 24 | Jun 11, 2019 | 31.72 | +9.72 | Moderate |
| 25 | Jun 23, 2015 | 31.22 | +9.22 | Moderate |
| 26 | Feb 3, 1982 | 31.20 | +9.20 | Moderate |
| 27 | Feb 24, 1951 | 30.86 | +8.86 | Moderate |
| 28 | Apr 3, 2018 | 30.85 | +8.85 | Moderate |
| 29 | Jun 6, 2013 | 30.75 | +8.75 | Moderate |
| 30 | Apr 21, 1939 | 30.38 | +8.38 | Moderate |
| 31 | Jan 16, 2020 | 29.92 | +7.92 | Moderate |
| 32 | Feb 2, 1916 | 29.90 | +7.90 | Moderate |
| 33 | Dec 24, 1957 | 29.80 | +7.80 | Moderate |
| 34 | Mar 22, 2021 | 29.78 | +7.78 | Moderate |
| 35 | May 21, 1990 | 29.63 | +7.63 | Moderate |
| 36 | Jan 27, 1999 | 29.52 | +7.52 | Moderate |
| 37 | Jun 22, 2000 | 29.39 | +7.39 | Moderate |
| 38 | Apr 8, 2014 | 29.20 | +7.20 | Moderate |
| 39 | Mar 29, 2023 | 28.91 | +6.91 | Moderate |
| 40 | Dec 21, 2001 | 28.69 | +6.69 | Moderate |
| 41 | Apr 1, 1975 | 28.56 | +6.56 | Moderate |
| 42 | Apr 29, 1947 | 28.47 | +6.47 | Moderate |
| 43 | Mar 16, 1952 | 28.36 | +6.36 | Moderate |
| 44 | Jan 10, 1917 | 28.30 | +6.30 | Moderate |
| 45 | May 14, 2009 | 27.87 | +5.87 | Minor |
| 46 | Apr 20, 1998 | 27.82 | +5.82 | Minor |
| 47 | Jan 3, 1991 | 27.79 | +5.79 | Minor |
| 48 | Apr 1, 1984 | 27.62 | +5.62 | Minor |
| 49 | Jun 7, 1981 | 27.60 | +5.60 | Minor |
| 50 | May 14, 1943 | 27.50 | +5.50 | Minor |
The worst floods along the Big Muddy River
For this gauge's highest crests, the other gauges on the Big Muddy River that crested above flood stage within a week.
Gauges on the Big Muddy River
In USGS station-number order, which runs downstream within a river basin.
| Plumfield | IL | 34.68 ft, May 4, 2011 | 2 |
| Murphysboro this gauge | IL | 40.47 ft, May 3, 2011 | 8 |
Jackson County: every hazard · River floods across the country · Illinois
NOAA National Water Prediction Service, gauge MURI2, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.