Highest listed crest 24.13 ft September 14, 2008; 10,300 cubic feet per second
Flood stage 17.0 ft No major stage set
Crests at major 0 129 above flood stage
Most recent flood crest July 5, 2026 17.25 ft, minor flooding Listed crests at the Edwards River near New Boston, 1935 to 2026 14 16 18 20 22 24 26 ft Flood stage 17.0 ft Jan 8, 1935: 18.65 ft, minor flooding; 3,000 cubic feet per second Feb 27, 1936: 20.16 ft, minor flooding; 3,200 cubic feet per second Feb 21, 1937: 19.74 ft, minor flooding; 2,900 cubic feet per second Jan 29, 1938: 19.60 ft, minor flooding Jun 15, 1938: 18.48 ft, minor flooding; 2,890 cubic feet per second Mar 12, 1939: 18.96 ft, minor flooding; 4,680 cubic feet per second Aug 17, 1939: 18.90 ft, minor flooding; 4,330 cubic feet per second Mar 7, 1940: 17.53 ft, minor flooding; 2,090 cubic feet per second Feb 13, 1941: 15.93 ft, action stage; 1,230 cubic feet per second Oct 10, 1941: 18.15 ft, minor flooding; 2,100 cubic feet per second Dec 29, 1942: 19.00 ft, minor flooding; 4,680 cubic feet per second Feb 10, 1943: 19.88 ft, minor flooding Apr 29, 1943: 18.97 ft, minor flooding; 4,680 cubic feet per second Apr 25, 1944: 19.04 ft, minor flooding; 3,680 cubic feet per second May 17, 1945: 19.15 ft, minor flooding; 3,840 cubic feet per second Jan 7, 1946: 20.17 ft, minor flooding; 6,050 cubic feet per second Apr 7, 1947: 19.67 ft, minor flooding; 5,150 cubic feet per second Mar 1, 1948: 19.57 ft, minor flooding; 3,920 cubic feet per second Feb 14, 1949: 19.40 ft, minor flooding; 3,500 cubic feet per second Feb 25, 1949: 20.03 ft, minor flooding Apr 26, 1950: 20.56 ft, minor flooding; 7,280 cubic feet per second May 12, 1951: 20.63 ft, minor flooding; 7,280 cubic feet per second Mar 14, 1952: 18.61 ft, minor flooding; 2,460 cubic feet per second Feb 20, 1953: 17.82 ft, minor flooding; 1,880 cubic feet per second Jun 3, 1954: 18.32 ft, minor flooding; 2,050 cubic feet per second Oct 13, 1954: 21.46 ft, minor flooding; 7,020 cubic feet per second Jul 8, 1956: 18.67 ft, minor flooding; 2,540 cubic feet per second Apr 6, 1957: 15.27 ft, action stage; 1,000 cubic feet per second Feb 27, 1958: 20.17 ft, minor flooding; 3,200 cubic feet per second Jun 13, 1958: 19.65 ft, minor flooding; 4,840 cubic feet per second Feb 26, 1959: 19.77 ft, minor flooding Apr 1, 1960: 20.77 ft, minor flooding; 6,250 cubic feet per second Mar 14, 1962: 19.76 ft, minor flooding; 3,400 cubic feet per second Mar 7, 1963: 20.30 ft, minor flooding Apr 22, 1964: 18.00 ft, minor flooding; 1,550 cubic feet per second Apr 26, 1965: 20.51 ft, minor flooding; 6,450 cubic feet per second Nov 3, 1967: 17.41 ft, minor flooding; 1,250 cubic feet per second Jan 23, 1969: 20.59 ft, minor flooding; 6,130 cubic feet per second Sep 26, 1970: 21.02 ft, minor flooding; 5,540 cubic feet per second Feb 21, 1971: 21.53 ft, minor flooding; 6,000 cubic feet per second Jun 15, 1972: 20.27 ft, minor flooding; 3,830 cubic feet per second Apr 22, 1973: 23.33 ft, minor flooding; 18,000 cubic feet per second Jun 25, 1974: 22.51 ft, minor flooding; 7,030 cubic feet per second Mar 18, 1975: 19.96 ft, minor flooding; 3,460 cubic feet per second Apr 27, 1976: 20.87 ft, minor flooding; 6,180 cubic feet per second Aug 11, 1977: 18.05 ft, minor flooding; 1,370 cubic feet per second Nov 4, 1977: 20.87 ft, minor flooding; 6,180 cubic feet per second Dec 17, 1977: 19.59 ft, minor flooding; 2,810 cubic feet per second Mar 20, 1979: 21.20 ft, minor flooding; 4,870 cubic feet per second Feb 24, 1980: 20.46 ft, minor flooding Aug 17, 1980: 20.29 ft, minor flooding; 4,420 cubic feet per second Apr 14, 1981: 20.85 ft, minor flooding; 5,860 cubic feet per second Feb 23, 1982: 22.66 ft, minor flooding Aug 7, 1982: 22.22 ft, minor flooding; 7,860 cubic feet per second Dec 5, 1982: 21.38 ft, minor flooding; 5,440 cubic feet per second Apr 4, 1983: 21.59 ft, minor flooding; 6,310 cubic feet per second Jun 10, 1984: 19.78 ft, minor flooding; 2,420 cubic feet per second Feb 22, 1985: 22.15 ft, minor flooding; 6,180 cubic feet per second Mar 6, 1985: 21.69 ft, minor flooding; 6,150 cubic feet per second Jul 11, 1986: 21.71 ft, minor flooding; 4,470 cubic feet per second Aug 28, 1987: 19.65 ft, minor flooding; 2,580 cubic feet per second Jan 22, 1988: 21.40 ft, minor flooding; 4,600 cubic feet per second Sep 10, 1989: 20.10 ft, minor flooding; 3,980 cubic feet per second Mar 15, 1990: 21.16 ft, minor flooding; 4,100 cubic feet per second Jun 20, 1990: 22.49 ft, minor flooding; 10,300 cubic feet per second Feb 6, 1991: 21.42 ft, minor flooding; 4,670 cubic feet per second Jul 28, 1992: 20.88 ft, minor flooding; 2,760 cubic feet per second Dec 18, 1992: 21.51 ft, minor flooding; 4,990 cubic feet per second Mar 6, 1993: 22.06 ft, minor flooding; 5,510 cubic feet per second Mar 23, 1993: 22.05 ft, minor flooding; 7,400 cubic feet per second Jun 11, 1993: 21.61 ft, minor flooding; 3,360 cubic feet per second Jun 28, 1993: 22.12 ft, minor flooding; 5,980 cubic feet per second Jul 24, 1993: 22.28 ft, minor flooding; 7,510 cubic feet per second Aug 16, 1993: 22.37 ft, minor flooding; 8,590 cubic feet per second Feb 20, 1994: 21.67 ft, minor flooding; 5,600 cubic feet per second Apr 13, 1995: 21.27 ft, minor flooding; 2,890 cubic feet per second May 24, 1995: 21.51 ft, minor flooding; 3,260 cubic feet per second Jul 7, 1995: 21.52 ft, minor flooding; 3,280 cubic feet per second May 10, 1996: 21.85 ft, minor flooding; 3,690 cubic feet per second May 28, 1996: 22.91 ft, minor flooding; 7,180 cubic feet per second Feb 23, 1997: 22.07 ft, minor flooding; 4,190 cubic feet per second Mar 20, 1998: 21.11 ft, minor flooding; 2,760 cubic feet per second Mar 31, 1998: 21.41 ft, minor flooding; 3,100 cubic feet per second Oct 21, 1998: 22.51 ft, minor flooding; 5,560 cubic feet per second Nov 13, 1998: 21.74 ft, minor flooding; 3,570 cubic feet per second Jun 16, 1999: 21.15 ft, minor flooding; 2,810 cubic feet per second Apr 21, 2000: 21.30 ft, minor flooding; 2,970 cubic feet per second Jul 5, 2000: 21.08 ft, minor flooding; 2,730 cubic feet per second Feb 11, 2001: 22.38 ft, minor flooding; 5,100 cubic feet per second Feb 27, 2001: 22.40 ft, minor flooding; 4,640 cubic feet per second May 21, 2001: 21.44 ft, minor flooding; 2,790 cubic feet per second Jun 8, 2001: 22.30 ft, minor flooding; 4,270 cubic feet per second May 15, 2002: 22.11 ft, minor flooding; 4,300 cubic feet per second Jun 7, 2002: 21.81 ft, minor flooding; 3,580 cubic feet per second Jun 13, 2002: 21.57 ft, minor flooding; 3,120 cubic feet per second May 3, 2003: 22.52 ft, minor flooding; 4,700 cubic feet per second May 31, 2004: 22.61 ft, minor flooding; 6,200 cubic feet per second Jan 14, 2005: 19.16 ft, minor flooding; 1,630 cubic feet per second Sep 13, 2006: 18.74 ft, minor flooding; 1,460 cubic feet per second Mar 4, 2007: 22.53 ft, minor flooding; 3,500 cubic feet per second Sep 14, 2008: 24.13 ft, minor flooding; 10,300 cubic feet per second Dec 30, 2008: 23.70 ft, minor flooding; 8,090 cubic feet per second May 15, 2010: 23.57 ft, minor flooding; 7,510 cubic feet per second Feb 21, 2011: 21.42 ft, minor flooding; 2,600 cubic feet per second May 29, 2011: 22.82 ft, minor flooding; 4,830 cubic feet per second Jun 23, 2011: 21.65 ft, minor flooding; 2,800 cubic feet per second May 7, 2012: 21.25 ft, minor flooding; 2,500 cubic feet per second Apr 20, 2013: 23.82 ft, minor flooding; 8,630 cubic feet per second May 5, 2013: 21.37 ft, minor flooding; 2,540 cubic feet per second May 31, 2013: 22.69 ft, minor flooding Feb 24, 2014: 23.20 ft, minor flooding Mar 13, 2014: 23.26 ft, minor flooding; 6,280 cubic feet per second Jul 4, 2014: 22.63 ft, minor flooding Jun 14, 2015: 22.64 ft, minor flooding; 5,720 cubic feet per second Jul 7, 2015: 22.92 ft, minor flooding; 6,560 cubic feet per second Dec 30, 2015: 20.80 ft, minor flooding; 2,280 cubic feet per second Jan 19, 2017: 21.78 ft, minor flooding; 3,690 cubic feet per second Feb 21, 2018: 22.02 ft, minor flooding; 4,180 cubic feet per second Feb 7, 2019: 23.46 ft, minor flooding; 3,300 cubic feet per second Feb 26, 2019: 23.14 ft, minor flooding; 3,860 cubic feet per second Mar 12, 2019: 22.05 ft, minor flooding; 2,960 cubic feet per second May 3, 2019: 23.25 ft, minor flooding; 7,950 cubic feet per second May 31, 2019: 23.72 ft, minor flooding; 8,640 cubic feet per second Oct 1, 2019: 21.91 ft, minor flooding; 3,940 cubic feet per second May 20, 2020: 21.62 ft, minor flooding; 3,250 cubic feet per second Jul 16, 2021: 19.48 ft, minor flooding; 1,771 cubic feet per second Jul 9, 2022: 20.48 ft, minor flooding; 2,176 cubic feet per second Mar 26, 2023: 19.43 ft, minor flooding; 1,728 cubic feet per second Mar 16, 2024: 17.66 ft, minor flooding; 1,161 cubic feet per second Apr 5, 2026: 20.59 ft, minor flooding; 2,200 cubic feet per second Jul 5, 2026: 17.25 ft, minor flooding; 1,012 cubic feet per second Highest, 24.13 ft, Sep 14, 2008 1940 1960 1980 2000 2020 Crests at or above flood stage, by decade Crests at or above flood stage per decade, Edwards River near New Boston 1930s: 7 1940s: 12 1950s: 10 1960s: 7 1970s: 11 1980s: 14 1990s: 23 23 2000s: 16 2010s: 22 2020s: 7 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 Mercer County Mercer County: every hazard · River floods across the country · Illinois
NOAA National Water Prediction Service, gauge NWBI2, 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.