Highest listed crest 32.65 ft July 25, 1993; 30,800 cubic feet per second
Flood stage 21.5 ft No major stage set
Crests at major 0 94 above flood stage
Most recent flood crest April 5, 2026 23.74 ft, minor flooding Listed crests at the Henderson Creek near Oquawka, 1924 to 2026 20 25 30 35 ft Flood stage 21.5 ft Jun 1, 1924: 27.80 ft, minor flooding; 20,000 cubic feet per second Jun 2, 1935: 23.70 ft, minor flooding; 4,720 cubic feet per second Feb 27, 1936: 25.26 ft, minor flooding; 6,800 cubic feet per second Feb 21, 1937: 24.20 ft, minor flooding; 3,100 cubic feet per second Jan 25, 1938: 25.60 ft, minor flooding; 5,000 cubic feet per second Aug 9, 1938: 25.46 ft, minor flooding; 5,840 cubic feet per second Mar 13, 1939: 25.60 ft, minor flooding; 8,920 cubic feet per second Mar 4, 1940: 22.75 ft, minor flooding; 2,240 cubic feet per second Feb 13, 1941: 22.95 ft, minor flooding; 3,460 cubic feet per second Oct 10, 1941: 25.22 ft, minor flooding; 5,330 cubic feet per second Feb 5, 1943: 23.75 ft, minor flooding Mar 16, 1944: 23.92 ft, minor flooding; 5,850 cubic feet per second May 16, 1945: 24.67 ft, minor flooding; 5,650 cubic feet per second Jan 6, 1946: 26.01 ft, minor flooding; 8,060 cubic feet per second Apr 6, 1947: 25.11 ft, minor flooding; 6,020 cubic feet per second Mar 20, 1948: 26.22 ft, minor flooding; 9,030 cubic feet per second Feb 15, 1949: 25.10 ft, minor flooding; 6,510 cubic feet per second Apr 25, 1950: 28.17 ft, minor flooding; 16,500 cubic feet per second Feb 19, 1951: 26.15 ft, minor flooding; 9,000 cubic feet per second Jun 21, 1952: 23.79 ft, minor flooding; 3,540 cubic feet per second Feb 20, 1953: 22.87 ft, minor flooding; 2,020 cubic feet per second Jun 2, 1954: 24.28 ft, minor flooding; 4,620 cubic feet per second Feb 21, 1955: 25.81 ft, minor flooding; 4,600 cubic feet per second Jul 9, 1956: 26.30 ft, minor flooding; 6,000 cubic feet per second Jun 13, 1957: 22.63 ft, minor flooding; 1,760 cubic feet per second Jun 12, 1958: 24.33 ft, minor flooding; 3,310 cubic feet per second Feb 11, 1959: 24.95 ft, minor flooding; 2,300 cubic feet per second Feb 24, 1959: 24.47 ft, minor flooding; 3,500 cubic feet per second Mar 30, 1960: 26.48 ft, minor flooding; 7,750 cubic feet per second Sep 14, 1961: 24.57 ft, minor flooding; 3,130 cubic feet per second Mar 12, 1962: 25.95 ft, minor flooding; 6,700 cubic feet per second Mar 5, 1963: 24.43 ft, minor flooding; 3,500 cubic feet per second Apr 21, 1964: 21.56 ft, minor flooding; 1,340 cubic feet per second Mar 18, 1965: 25.84 ft, minor flooding; 6,360 cubic feet per second Feb 10, 1966: 23.75 ft, minor flooding; 2,420 cubic feet per second May 1, 1967: 24.22 ft, minor flooding; 3,130 cubic feet per second Nov 2, 1967: 22.23 ft, minor flooding; 1,570 cubic feet per second Jan 24, 1969: 26.45 ft, minor flooding; 6,420 cubic feet per second May 15, 1970: 26.20 ft, minor flooding; 7,120 cubic feet per second Sep 25, 1970: 27.29 ft, minor flooding; 6,620 cubic feet per second Jun 16, 1972: 24.06 ft, minor flooding; 2,390 cubic feet per second Apr 22, 1973: 26.81 ft, minor flooding; 10,600 cubic feet per second Jun 23, 1974: 28.12 ft, minor flooding; 15,700 cubic feet per second Mar 18, 1975: 24.17 ft, minor flooding; 2,970 cubic feet per second Apr 26, 1976: 25.11 ft, minor flooding; 4,380 cubic feet per second Aug 9, 1977: 24.35 ft, minor flooding; 3,170 cubic feet per second Nov 3, 1977: 26.40 ft, minor flooding; 7,640 cubic feet per second Mar 19, 1979: 24.80 ft, minor flooding; 4,440 cubic feet per second Sep 2, 1980: 26.15 ft, minor flooding; 6,840 cubic feet per second Apr 14, 1981: 24.75 ft, minor flooding; 3,740 cubic feet per second Jul 8, 1982: 31.05 ft, minor flooding; 34,600 cubic feet per second Apr 3, 1983: 25.96 ft, minor flooding; 5,260 cubic feet per second Apr 30, 1984: 23.89 ft, minor flooding; 2,830 cubic feet per second Mar 5, 1985: 27.24 ft, minor flooding; 8,750 cubic feet per second Feb 20, 1986: 24.72 ft, minor flooding; 3,740 cubic feet per second Oct 4, 1986: 26.73 ft, minor flooding; 7,250 cubic feet per second Jan 21, 1988: 23.36 ft, minor flooding; 2,280 cubic feet per second Jun 1, 1989: 21.81 ft, minor flooding; 1,640 cubic feet per second Jun 20, 1990: 27.48 ft, minor flooding; 9,640 cubic feet per second May 27, 1991: 25.04 ft, minor flooding; 3,730 cubic feet per second Sep 10, 1992: 23.52 ft, minor flooding; 2,360 cubic feet per second Jul 25, 1993: 32.65 ft, minor flooding; 30,800 cubic feet per second Feb 21, 1994: 25.24 ft, minor flooding; 4,010 cubic feet per second Jul 5, 1995: 25.67 ft, minor flooding; 4,700 cubic feet per second May 28, 1996: 25.84 ft, minor flooding; 7,200 cubic feet per second Mar 19, 1998: 24.91 ft, minor flooding; 5,160 cubic feet per second Oct 18, 1998: 25.87 ft, minor flooding; 7,280 cubic feet per second Jun 26, 2000: 25.09 ft, minor flooding; 4,160 cubic feet per second Feb 25, 2001: 26.17 ft, minor flooding; 6,810 cubic feet per second Jun 14, 2002: 25.56 ft, minor flooding; 6,530 cubic feet per second May 9, 2003: 24.70 ft, minor flooding; 4,770 cubic feet per second Dec 11, 2003: 24.28 ft, minor flooding; 4,070 cubic feet per second Jan 13, 2005: 23.31 ft, minor flooding; 2,820 cubic feet per second Apr 7, 2006: 20.43 ft, action stage; 1,460 cubic feet per second Mar 2, 2007: 26.39 ft, minor flooding; 4,400 cubic feet per second Feb 18, 2008: 27.25 ft, minor flooding May 16, 2009: 28.03 ft, minor flooding; 14,800 cubic feet per second May 14, 2010: 28.11 ft, minor flooding; 13,300 cubic feet per second May 27, 2011: 26.50 ft, minor flooding; 8,270 cubic feet per second May 4, 2012: 22.61 ft, minor flooding; 2,230 cubic feet per second Apr 19, 2013: 29.51 ft, minor flooding; 19,500 cubic feet per second Feb 21, 2014: 28.83 ft, minor flooding; 16,300 cubic feet per second Jul 17, 2015: 26.30 ft, minor flooding; 7,770 cubic feet per second Dec 29, 2015: 24.79 ft, minor flooding; 4,600 cubic feet per second May 1, 2017: 24.79 ft, minor flooding; 3,940 cubic feet per second Feb 20, 2018: 24.12 ft, minor flooding Sep 7, 2018: 23.67 ft, minor flooding; 3,120 cubic feet per second May 29, 2019: 29.46 ft, minor flooding; 17,400 cubic feet per second May 18, 2020: 26.07 ft, minor flooding; 6,600 cubic feet per second Jul 16, 2021: 24.47 ft, minor flooding; 3,599 cubic feet per second Jul 9, 2022: 22.84 ft, minor flooding; 2,239 cubic feet per second Mar 26, 2023: 24.12 ft, minor flooding; 3,961 cubic feet per second Mar 15, 2024: 23.19 ft, minor flooding; 2,859 cubic feet per second May 21, 2025: 22.50 ft, minor flooding; 2,397 cubic feet per second Apr 5, 2026: 23.74 ft, minor flooding; 3,269 cubic feet per second Highest, 32.65 ft, Jul 25, 1993 1940 1960 1980 2000 2020 Crests at or above flood stage, by decade Crests at or above flood stage per decade, Henderson Creek near Oquawka 1920s: 1 1930s: 6 1940s: 10 1950s: 11 11 1960s: 10 1970s: 10 1980s: 10 1990s: 9 2000s: 9 2010s: 11 2020s: 7 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s 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. 05 Other gauges in Henderson County Henderson County: every hazard · River floods across the country · Illinois
NOAA National Water Prediction Service, gauge OQUI2, 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.