Search
Menu

Explore

Hazards

Analysis

Rankings

Reference

Illinois River near Havana

Highest listed crest 27.78 ftFlood stage 14.0 ft162 crests since 1900

The Illinois River near Havana crested at major flood stage 25 times among the 162 crests the National Weather Service lists from 1900 to 2026. The highest, 27.78 ft on April 25, 2013, was major flooding, 13.78 feet above flood stage. 12 other gauges on the Illinois River crested above flood stage within a week of it, 9 at their own highest listed crest.

The gauge

Highest listed crest
27.78 ft
April 25, 2013
Flood stage
14.0 ft
Major flooding from 23.0 ft
Crests at major
25
4th of 177 gauges in Illinois
Most recent flood crest
August 20, 2026
16.87 ft, minor flooding
Location
Mason County
Illinois
Identifiers
NWS HAVI2
No USGS station

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Illinois River near Havana
Action stage13.05Apr 12, 2025The level at which the NWS or its partners begin to take action
Flood stage (minor)14.049Aug 20, 2026Minimal or no property damage, but possibly some public threat
Moderate flood stage17.080Jun 26, 2026Some inundation of structures and roads near the stream
Major flood stage23.025May 26, 2020Extensive inundation of structures and roads

Every listed crest

162 crests from 1900 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Illinois River near Havana, 1900 to 2026 1015202530ft Flood stage 14.0 ftMajor 23.0 ft Mar 18, 1900: 17.30 ft, moderate floodingApr 2, 1901: 15.20 ft, minor floodingJul 24, 1902: 19.10 ft, moderate floodingMar 14, 1903: 17.00 ft, moderate floodingApr 1, 1904: 19.80 ft, moderate floodingJan 27, 1907: 17.50 ft, moderate floodingJul 17, 1908: 20.10 ft, moderate floodingMay 8, 1909: 15.10 ft, minor floodingApr 4, 1912: 17.10 ft, moderate floodingApr 4, 1913: 20.10 ft, moderate floodingAug 10, 1915: 14.80 ft, minor floodingJan 31, 1916: 19.70 ft, moderate floodingJun 17, 1917: 17.20 ft, moderate floodingFeb 24, 1918: 15.20 ft, minor floodingMar 27, 1919: 18.50 ft, moderate floodingApr 26, 1920: 19.60 ft, moderate floodingApr 20, 1922: 22.30 ft, moderate floodingAug 25, 1924: 18.60 ft, moderate floodingSep 19, 1926: 19.20 ft, moderate floodingOct 11, 1926: 23.00 ft, major floodingDec 19, 1927: 18.00 ft, moderate floodingApr 5, 1929: 19.40 ft, moderate floodingMar 4, 1930: 16.40 ft, minor floodingJan 23, 1932: 14.90 ft, minor floodingMay 23, 1933: 22.97 ft, moderate floodingMay 17, 1935: 19.87 ft, moderate floodingMay 3, 1936: 17.87 ft, moderate floodingMay 6, 1937: 16.37 ft, minor floodingApr 15, 1938: 19.07 ft, moderate floodingMar 20, 1939: 17.77 ft, moderate floodingFeb 19, 1942: 18.60 ft, moderate floodingMay 26, 1943: 27.10 ft, major floodingApr 29, 1944: 23.30 ft, major floodingMay 23, 1945: 18.10 ft, moderate floodingJun 13, 1947: 18.60 ft, moderate floodingMar 24, 1948: 19.70 ft, moderate floodingFeb 24, 1949: 16.50 ft, minor floodingApr 30, 1950: 20.90 ft, moderate floodingFeb 24, 1951: 19.20 ft, moderate floodingApr 24, 1952: 16.50 ft, minor floodingJun 6, 1954: 14.20 ft, minor floodingMay 4, 1957: 17.50 ft, moderate floodingJun 20, 1958: 16.90 ft, minor floodingFeb 19, 1959: 17.60 ft, moderate floodingApr 6, 1960: 19.80 ft, moderate floodingSep 30, 1961: 17.00 ft, moderate floodingMar 27, 1962: 21.50 ft, moderate floodingMar 12, 1963: 14.10 ft, minor floodingApr 29, 1965: 17.20 ft, moderate floodingMay 25, 1966: 17.90 ft, moderate floodingApr 7, 1967: 16.90 ft, minor floodingApr 28, 1974: 23.90 ft, major floodingApr 3, 1979: 25.10 ft, major floodingApr 17, 1979: 25.50 ft, major floodingMar 25, 1982: 24.50 ft, major floodingDec 11, 1982: 25.00 ft, major floodingApr 18, 1983: 23.40 ft, major floodingMar 9, 1985: 26.44 ft, major floodingOct 9, 1987: 19.69 ft, moderate floodingApr 12, 1988: 16.30 ft, minor floodingSep 17, 1989: 15.01 ft, minor floodingMar 17, 1990: 19.60 ft, moderate floodingJul 29, 1993: 23.46 ft, major floodingMay 31, 1995: 26.33 ft, major floodingJun 6, 1996: 21.90 ft, moderate floodingMar 4, 1997: 23.69 ft, major floodingJan 14, 1998: 15.40 ft, minor floodingFeb 17, 1998: 14.42 ft, minor floodingFeb 24, 1998: 14.45 ft, minor floodingMar 25, 1998: 20.50 ft, moderate floodingApr 11, 1998: 18.60 ft, moderate floodingMay 14, 1998: 20.85 ft, moderate floodingJun 24, 1998: 18.09 ft, moderate floodingJan 31, 1999: 18.50 ft, moderate floodingMay 2, 1999: 18.46 ft, moderate floodingMay 19, 1999: 18.12 ft, moderate floodingJun 19, 1999: 16.40 ft, minor floodingJun 30, 2000: 15.40 ft, minor floodingJul 15, 2000: 15.06 ft, minor floodingMay 19, 2002: 26.00 ft, major floodingMay 18, 2003: 15.06 ft, minor floodingJul 24, 2003: 14.61 ft, minor floodingMay 29, 2004: 14.00 ft, minor floodingJun 5, 2004: 16.60 ft, minor floodingJun 19, 2004: 17.40 ft, moderate floodingDec 13, 2004: 17.71 ft, moderate floodingJan 20, 2005: 23.04 ft, major floodingFeb 1, 2005: 17.50 ft, moderate floodingFeb 22, 2005: 16.80 ft, minor floodingJan 18, 2008: 19.16 ft, moderate flooding; 71,910 cubic feet per secondFeb 8, 2008: 17.70 ft, moderate flooding; 52,058 cubic feet per secondFeb 13, 2008: 18.04 ft, moderate flooding; 53,887 cubic feet per secondFeb 21, 2008: 19.65 ft, moderate flooding; 75,462 cubic feet per secondSep 23, 2008: 23.54 ft, major flooding; 74,283 cubic feet per secondJan 4, 2009: 20.82 ft, moderate flooding; 75,805 cubic feet per secondFeb 20, 2009: 15.76 ft, minor floodingMar 16, 2009: 24.14 ft, major flooding; 105,840 cubic feet per secondMay 22, 2009: 25.24 ft, major floodingNov 6, 2009: 20.75 ft, moderate floodingNov 22, 2009: 17.45 ft, moderate floodingJan 1, 2010: 19.05 ft, moderate floodingJan 29, 2010: 17.51 ft, moderate floodingMar 20, 2010: 19.20 ft, moderate floodingMay 23, 2010: 18.43 ft, moderate floodingJun 29, 2010: 23.35 ft, major floodingJul 21, 2010: 14.05 ft, minor floodingJul 29, 2010: 14.42 ft, minor floodingMar 10, 2011: 18.41 ft, moderate floodingMay 3, 2011: 21.14 ft, moderate floodingJun 4, 2011: 20.51 ft, moderate floodingMar 17, 2013: 16.85 ft, minor floodingApr 25, 2013: 27.78 ft, major floodingMay 13, 2013: 14.91 ft, minor floodingFeb 27, 2014: 17.10 ft, moderate floodingMar 17, 2014: 17.18 ft, moderate floodingJul 5, 2014: 17.34 ft, moderate floodingSep 13, 2014: 14.36 ft, minor floodingMar 18, 2015: 14.07 ft, minor floodingJul 1, 2015: 27.24 ft, major floodingJan 4, 2016: 26.80 ft, major floodingMay 19, 2016: 15.25 ft, minor floodingSep 3, 2016: 15.76 ft, minor floodingJan 28, 2017: 16.15 ft, minor floodingApr 12, 2017: 19.32 ft, moderate floodingMay 8, 2017: 22.58 ft, moderate floodingJul 29, 2017: 14.49 ft, minor floodingMar 3, 2018: 21.05 ft, moderate floodingJun 30, 2018: 15.92 ft, minor floodingSep 10, 2018: 11.99 ft, below flood stageDec 7, 2018: 15.48 ft, minor floodingJan 9, 2019: 15.66 ft, minor floodingMar 18, 2019: 18.45 ft, moderate floodingApr 5, 2019: 18.33 ft, moderate floodingMay 9, 2019: 26.64 ft, major floodingJun 3, 2019: 26.73 ft, major floodingOct 6, 2019: 17.98 ft, moderate floodingNov 7, 2019: 17.85 ft, moderate floodingDec 6, 2019: 12.78 ft, below flood stageJan 22, 2020: 18.05 ft, moderate floodingApr 2, 2020: 16.60 ft, minor floodingMay 26, 2020: 25.19 ft, major floodingMar 7, 2021: 13.64 ft, action stageMar 26, 2021: 14.59 ft, minor floodingApr 15, 2021: 13.37 ft, action stageMay 23, 2021: 16.27 ft, minor floodingJul 6, 2021: 18.27 ft, moderate flooding; 51,451 cubic feet per secondNov 3, 2021: 17.56 ft, moderate floodingFeb 28, 2022: 16.98 ft, minor floodingApr 10, 2022: 17.87 ft, moderate floodingMay 12, 2022: 16.08 ft, minor floodingMar 12, 2023: 16.18 ft, minor flooding; 40,972 cubic feet per secondApr 6, 2023: 15.97 ft, minor flooding; 39,946 cubic feet per secondFeb 3, 2024: 19.32 ft, moderate flooding; 57,435 cubic feet per secondMar 18, 2024: 13.23 ft, action stage; 26,723 cubic feet per secondApr 12, 2024: 17.11 ft, moderate flooding; 45,540 cubic feet per secondMay 6, 2024: 18.71 ft, moderate flooding; 53,959 cubic feet per secondJul 19, 2024: 13.67 ft, action stage; 28,969 cubic feet per secondApr 12, 2025: 13.15 ft, action stageMar 26, 2026: 12.29 ft, below flood stageApr 23, 2026: 16.64 ft, minor floodingJun 26, 2026: 19.82 ft, moderate floodingAug 20, 2026: 16.87 ft, minor flooding Highest, 27.78 ft, Apr 25, 2013 1900192019401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Illinois River near Havana 1900s: 8 1910s: 7 1920s: 7 1930s: 8 1940s: 7 1950s: 7 1960s: 7 1970s: 3 1980s: 7 1990s: 16 2000s: 23 2010s: 36 36 2020s: 18 1900s1910s1920s1930s1940s1950s1960s1970s1980s1990s2000s2010s2020s
  1. 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.
  2. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.
  3. 4 crests measured on an earlier gauge datum are left out: 22.20 ft on Jan 1, 1844; 20.60 ft on Jan 1, 1883; 16.00 ft on Mar 27, 1897; 18.00 ft on Apr 2, 1898.

Highest crests

The 50 highest of 162 listed crests.

Highest listed crests, Illinois River near Havana
1Apr 25, 201327.78+13.78Major—
2Jul 1, 201527.24+13.24Major—
3May 26, 194327.10+13.10Major—
4Jan 4, 201626.80+12.80Major—
5Jun 3, 201926.73+12.73Major—
6May 9, 201926.64+12.64Major—
7Mar 9, 198526.44+12.44Major—
8May 31, 199526.33+12.33Major—
9May 19, 200226.00+12.00Major—
10Apr 17, 197925.50+11.50Major—
11May 22, 200925.24+11.24Major—
12May 26, 202025.19+11.19Major—
13Apr 3, 197925.10+11.10Major—
14Dec 11, 198225.00+11.00Major—
15Mar 25, 198224.50+10.50Major—
16Mar 16, 200924.14+10.14Major105,840
17Apr 28, 197423.90+9.90Major—
18Mar 4, 199723.69+9.69Major—
19Sep 23, 200823.54+9.54Major74,283
20Jul 29, 199323.46+9.46Major—
21Apr 18, 198323.40+9.40Major—
22Jun 29, 201023.35+9.35Major—
23Apr 29, 194423.30+9.30Major—
24Jan 20, 200523.04+9.04Major—
25Oct 11, 192623.00+9.00Major—
26May 23, 193322.97+8.97Moderate—
27May 8, 201722.58+8.58Moderate—
28Apr 20, 192222.30+8.30Moderate—
29Jun 6, 199621.90+7.90Moderate—
30Mar 27, 196221.50+7.50Moderate—
31May 3, 201121.14+7.14Moderate—
32Mar 3, 201821.05+7.05Moderate—
33Apr 30, 195020.90+6.90Moderate—
34May 14, 199820.85+6.85Moderate—
35Jan 4, 200920.82+6.82Moderate75,805
36Nov 6, 200920.75+6.75Moderate—
37Jun 4, 201120.51+6.51Moderate—
38Mar 25, 199820.50+6.50Moderate—
39Jul 17, 190820.10+6.10Moderate—
40Apr 4, 191320.10+6.10Moderate—
41May 17, 193519.87+5.87Moderate—
42Jun 26, 202619.82+5.82Moderate—
43Apr 1, 190419.80+5.80Moderate—
44Apr 6, 196019.80+5.80Moderate—
45Jan 31, 191619.70+5.70Moderate—
46Mar 24, 194819.70+5.70Moderate—
47Oct 9, 198719.69+5.69Moderate—
48Feb 21, 200819.65+5.65Moderate75,462
49Apr 26, 192019.60+5.60Moderate—
50Mar 17, 199019.60+5.60Moderate—

The worst floods along the Illinois River

For this gauge's highest crests, the other gauges on the Illinois River that crested above flood stage within a week.

April 25, 2013: 27.78 ft here, major flooding

  • OttawaIL · Apr 19, 2013 · 473.72 ft · Major · its highest
  • Starved Rock Lock (tailwater)IL · Apr 19, 2013 · 467.81 ft · Major · its highest
  • Peoria Lock and DamIL · Apr 23, 2013 · 456.57 ft · Major · its highest
  • LaGrange Lock and DamIL · Apr 27, 2013 · 34.50 ft · Major
  • La SalleIL · Apr 20, 2013 · 34.44 ft · Major · its highest
  • HenryIL · Apr 22, 2013 · 32.94 ft · Major · its highest
  • BeardstownIL · Apr 27, 2013 · 29.81 ft · Major · its highest
  • PeoriaIL · Apr 23, 2013 · 29.35 ft · Major · its highest
  • MeredosiaIL · Apr 27, 2013 · 28.69 ft · Major
  • Valley CityIL · Apr 27, 2013 · 26.63 ft · Major

July 1, 2015: 27.24 ft here, major flooding

  • HardinIL · Jun 30, 2015 · 36.50 ft · Major
  • LaGrange Lock and DamIL · Jul 2, 2015 · 34.66 ft · Major · its highest
  • BeardstownIL · Jul 2, 2015 · 29.75 ft · Major
  • MeredosiaIL · Jul 2, 2015 · 28.86 ft · Major · its highest
  • Valley CityIL · Jul 2, 2015 · 26.85 ft · Major
  • Peoria Lock and DamIL · Jun 30, 2015 · 454.55 ft · Moderate
  • HenryIL · Jun 30, 2015 · 30.39 ft · Moderate
  • La SalleIL · Jun 24, 2015 · 28.98 ft · Moderate
  • PeoriaIL · Jun 30, 2015 · 27.09 ft · Moderate

May 26, 1943: 27.10 ft here, major flooding

Gauges on the Illinois River

Flood gauges sharing the river's name, linked within 80 miles of one another.

Flood gauges on the Illinois River
BeardstownIL14.029.81 ft, Apr 27, 201310
HardinIL25.042.40 ft, Aug 3, 199320
LaGrange Lock and DamIL23.034.66 ft, Jul 2, 201517
Marseilles Lock (tailwater)IL467.0476.72 ft, Apr 19, 20130
MeredosiaIL17.028.86 ft, Jul 2, 201523
MorrisIL16.024.91 ft, Apr 19, 201312
OttawaIL463.0473.72 ft, Apr 19, 20134
PeoriaIL18.029.35 ft, Apr 23, 20135
Peoria Lock and DamIL447.0456.57 ft, Apr 23, 20135
Starved Rock Lock (tailwater)IL450.0467.81 ft, Apr 19, 20133
Valley CityIL14.027.00 ft, May 26, 194317
Havana this gaugeIL14.027.78 ft, Apr 25, 201325
HenryIL23.032.94 ft, Apr 22, 20137
La SalleIL20.034.44 ft, Apr 20, 20139

Mason County: every hazard · River floods across the country · Illinois

NOAA National Water Prediction Service, gauge HAVI2, 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.