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Cedar River near Conesville

Highest listed crest 23.40 ftFlood stage 13.0 ft100 crests since 1929

The Cedar River near Conesville crested at major flood stage 12 times among the 100 crests the National Weather Service lists from 1929 to 2026. The highest, 23.40 ft on June 15, 2008, was major flooding, 10.40 feet above flood stage. 11 other gauges on the Cedar River crested above flood stage within a week of it, 8 at their own highest listed crest.

The gauge

Highest listed crest
23.40 ft
June 15, 2008; 127,000 cubic feet per second
Flood stage
13.0 ft
Major flooding from 16.5 ft
Crests at major
12
21st of 203 gauges in Iowa
Most recent flood crest
July 17, 2026
13.59 ft, minor flooding
Location
Muscatine County
Near Muscatine (11.5 mi)

Flood stages

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

Flood categories, Cedar River near Conesville
Action stage12.014Apr 10, 2006The level at which the NWS or its partners begin to take action
Flood stage (minor)13.039Jul 17, 2026Minimal or no property damage, but possibly some public threat
Moderate flood stage15.020Jun 27, 2020Some inundation of structures and roads near the stream
Major flood stage16.512Sep 29, 2016Extensive inundation of structures and roads

Every listed crest

100 crests from 1929 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Cedar River near Conesville, 1929 to 2026 510152025ft Flood stage 13.0 ftMajor 16.5 ft Mar 1, 1929: 15.80 ft, moderate floodingMar 19, 1940: 7.11 ft, below flood stage; 5,490 cubic feet per secondMar 24, 1941: 10.68 ft, below flood stage; 13,200 cubic feet per secondSep 11, 1941: 10.30 ft, below flood stage; 12,400 cubic feet per secondAug 6, 1942: 13.37 ft, minor flooding; 31,300 cubic feet per secondApr 2, 1943: 11.45 ft, below flood stage; 17,400 cubic feet per secondJun 27, 1944: 13.93 ft, minor flooding; 44,500 cubic feet per secondMar 21, 1945: 14.45 ft, minor flooding; 50,900 cubic feet per secondJan 10, 1946: 14.62 ft, minor flooding; 32,000 cubic feet per secondJun 18, 1947: 15.35 ft, moderate flooding; 60,000 cubic feet per secondJul 7, 1947: 12.40 ft, action stage; 20,300 cubic feet per secondMar 5, 1948: 14.00 ft, minor flooding; 42,600 cubic feet per secondMar 10, 1949: 13.69 ft, minor flooding; 28,700 cubic feet per secondMar 13, 1950: 14.10 ft, minor flooding; 34,100 cubic feet per secondApr 13, 1951: 15.10 ft, moderate flooding; 54,100 cubic feet per secondApr 7, 1952: 13.14 ft, minor flooding; 23,700 cubic feet per secondFeb 21, 1953: 12.87 ft, action stage; 22,400 cubic feet per secondJun 28, 1954: 14.80 ft, minor flooding; 36,600 cubic feet per secondOct 11, 1954: 10.26 ft, below flood stage; 10,700 cubic feet per secondApr 3, 1956: 7.90 ft, below flood stage; 5,580 cubic feet per secondJun 21, 1957: 9.89 ft, below flood stage; 9,950 cubic feet per secondJun 14, 1958: 9.04 ft, below flood stage; 7,800 cubic feet per secondApr 1, 1959: 13.45 ft, minor flooding; 26,100 cubic feet per secondApr 4, 1960: 15.60 ft, moderate flooding; 58,800 cubic feet per secondJun 6, 1960: 12.45 ft, action stage; 18,500 cubic feet per secondApr 2, 1961: 16.62 ft, major flooding; 70,800 cubic feet per secondJun 9, 1961: 11.62 ft, below flood stage; 14,800 cubic feet per secondNov 4, 1961: 12.30 ft, action stage; 17,500 cubic feet per secondApr 5, 1962: 15.34 ft, moderate flooding; 47,700 cubic feet per secondMar 24, 1963: 11.82 ft, below flood stage; 15,500 cubic feet per secondJun 23, 1964: 8.42 ft, below flood stage; 6,440 cubic feet per secondApr 12, 1965: 16.85 ft, major flooding; 68,100 cubic feet per secondOct 7, 1965: 13.95 ft, minor flooding; 27,000 cubic feet per secondFeb 16, 1966: 14.10 ft, minor floodingJun 7, 1967: 13.92 ft, minor flooding; 29,200 cubic feet per secondAug 10, 1968: 13.21 ft, minor flooding; 21,000 cubic feet per secondJul 15, 1969: 16.05 ft, moderate flooding; 55,200 cubic feet per secondMar 5, 1970: 12.83 ft, action stage; 20,200 cubic feet per secondFeb 22, 1971: 13.92 ft, minor flooding; 20,000 cubic feet per secondApr 7, 1971: 13.56 ft, minor flooding; 25,100 cubic feet per secondJul 18, 1972: 12.87 ft, action stage; 20,400 cubic feet per secondApr 22, 1973: 16.02 ft, moderate flooding; 54,800 cubic feet per secondMay 18, 1974: 15.21 ft, moderate flooding; 43,500 cubic feet per secondMar 26, 1975: 13.88 ft, minor flooding; 31,600 cubic feet per secondApr 26, 1976: 12.63 ft, action stage; 20,700 cubic feet per secondSep 20, 1977: 12.47 ft, action stage; 17,200 cubic feet per secondJun 26, 1978: 12.64 ft, action stage; 19,000 cubic feet per secondMar 22, 1979: 14.74 ft, minor flooding; 37,900 cubic feet per secondAug 19, 1980: 12.78 ft, action stage; 19,900 cubic feet per secondJun 30, 1981: 12.04 ft, action stage; 16,400 cubic feet per secondJun 18, 1982: 14.23 ft, minor flooding; 30,300 cubic feet per secondApr 21, 1983: 13.87 ft, minor flooding; 28,700 cubic feet per secondFeb 18, 1984: 15.33 ft, moderate floodingApr 2, 1984: 12.63 ft, action stage; 19,000 cubic feet per secondMay 8, 1984: 13.95 ft, minor flooding; 29,500 cubic feet per secondFeb 25, 1985: 16.56 ft, major flooding; 28,000 cubic feet per secondMar 25, 1986: 14.58 ft, minor flooding; 36,000 cubic feet per secondOct 20, 1986: 13.01 ft, minor flooding; 21,200 cubic feet per secondJan 20, 1988: 11.02 ft, below flood stageMar 10, 1988: 9.47 ft, below flood stage; 8,460 cubic feet per secondMar 18, 1989: 8.61 ft, below flood stage; 6,650 cubic feet per secondJun 18, 1990: 16.87 ft, major flooding; 60,100 cubic feet per secondMay 25, 1991: 15.45 ft, moderate flooding; 46,800 cubic feet per secondApr 28, 1992: 13.22 ft, minor flooding; 22,600 cubic feet per secondApr 6, 1993: 17.11 ft, major flooding; 74,000 cubic feet per secondJul 7, 1993: 16.74 ft, major flooding; 66,500 cubic feet per secondJul 20, 1993: 16.42 ft, moderate flooding; 61,400 cubic feet per secondMar 11, 1994: 12.93 ft, action stage; 20,700 cubic feet per secondApr 28, 1995: 13.33 ft, minor flooding; 23,400 cubic feet per secondMay 11, 1996: 14.30 ft, minor flooding; 32,800 cubic feet per secondFeb 22, 1997: 14.52 ft, minor flooding; 35,200 cubic feet per secondJul 1, 1998: 14.74 ft, minor flooding; 33,400 cubic feet per secondMay 22, 1999: 16.30 ft, moderate flooding; 53,300 cubic feet per secondJul 28, 1999: 16.80 ft, major flooding; 60,900 cubic feet per secondJun 17, 2000: 14.17 ft, minor floodingJul 18, 2000: 14.17 ft, minor flooding; 29,000 cubic feet per secondApr 19, 2001: 15.20 ft, moderate flooding; 38,500 cubic feet per secondJun 6, 2002: 13.81 ft, minor flooding; 24,200 cubic feet per secondMay 18, 2003: 13.37 ft, minor flooding; 21,900 cubic feet per secondMay 29, 2004: 17.00 ft, major flooding; 70,200 cubic feet per secondJul 5, 2005: 13.56 ft, minor flooding; 24,200 cubic feet per secondApr 10, 2006: 12.39 ft, action stage; 17,900 cubic feet per secondAug 29, 2007: 14.25 ft, minor flooding; 29,500 cubic feet per secondApr 30, 2008: 16.20 ft, moderate floodingJun 15, 2008: 23.40 ft, major flooding; 127,000 cubic feet per secondAug 30, 2009: 15.36 ft, moderate flooding; 41,600 cubic feet per secondMar 19, 2010: 15.83 ft, moderate flooding; 51,100 cubic feet per secondMar 30, 2011: 14.25 ft, minor flooding; 27,500 cubic feet per secondMay 11, 2012: 9.97 ft, below flood stage; 10,700 cubic feet per secondJun 3, 2013: 16.90 ft, major flooding; 61,300 cubic feet per secondJul 2, 2014: 17.88 ft, major flooding; 77,700 cubic feet per secondJun 30, 2015: 13.51 ft, minor flooding; 23,900 cubic feet per secondSep 29, 2016: 18.06 ft, major flooding; 81,000 cubic feet per secondSep 28, 2018: 16.41 ft, moderate flooding; 56,300 cubic feet per secondMar 20, 2019: 16.31 ft, moderate flooding; 63,100 cubic feet per secondMay 31, 2019: 16.04 ft, moderate flooding; 46,357 cubic feet per secondJun 27, 2020: 15.84 ft, moderate flooding; 50,100 cubic feet per secondMar 6, 2023: 13.37 ft, minor flooding; 22,600 cubic feet per secondJul 1, 2024: 14.99 ft, minor flooding; 33,908 cubic feet per secondJul 17, 2026: 13.59 ft, minor flooding; 25,821 cubic feet per second Highest, 23.40 ft, Jun 15, 2008 19401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Cedar River near Conesville 1920s: 1 1930s: 0 1940s: 7 1950s: 5 1960s: 9 1970s: 6 1980s: 7 1990s: 12 12 2000s: 11 2010s: 9 2020s: 4 1920s1930s1940s1950s1960s1970s1980s1990s2000s2010s2020s
  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.

Highest crests

The 50 highest of 100 listed crests.

Highest listed crests, Cedar River near Conesville
1Jun 15, 200823.40+10.40Major127,000
2Sep 29, 201618.06+5.06Major81,000
3Jul 2, 201417.88+4.88Major77,700
4Apr 6, 199317.11+4.11Major74,000
5May 29, 200417.00+4.00Major70,200
6Jun 3, 201316.90+3.90Major61,300
7Jun 18, 199016.87+3.87Major60,100
8Apr 12, 196516.85+3.85Major68,100
9Jul 28, 199916.80+3.80Major60,900
10Jul 7, 199316.74+3.74Major66,500
11Apr 2, 196116.62+3.62Major70,800
12Feb 25, 198516.56+3.56Major28,000
13Jul 20, 199316.42+3.42Moderate61,400
14Sep 28, 201816.41+3.41Moderate56,300
15Mar 20, 201916.31+3.31Moderate63,100
16May 22, 199916.30+3.30Moderate53,300
17Apr 30, 200816.20+3.20Moderate—
18Jul 15, 196916.05+3.05Moderate55,200
19May 31, 201916.04+3.04Moderate46,357
20Apr 22, 197316.02+3.02Moderate54,800
21Jun 27, 202015.84+2.84Moderate50,100
22Mar 19, 201015.83+2.83Moderate51,100
23Mar 1, 192915.80+2.80Moderate—
24Apr 4, 196015.60+2.60Moderate58,800
25May 25, 199115.45+2.45Moderate46,800
26Aug 30, 200915.36+2.36Moderate41,600
27Jun 18, 194715.35+2.35Moderate60,000
28Apr 5, 196215.34+2.34Moderate47,700
29Feb 18, 198415.33+2.33Moderate—
30May 18, 197415.21+2.21Moderate43,500
31Apr 19, 200115.20+2.20Moderate38,500
32Apr 13, 195115.10+2.10Moderate54,100
33Jul 1, 202414.99+1.99Minor33,908
34Jun 28, 195414.80+1.80Minor36,600
35Mar 22, 197914.74+1.74Minor37,900
36Jul 1, 199814.74+1.74Minor33,400
37Jan 10, 194614.62+1.62Minor32,000
38Mar 25, 198614.58+1.58Minor36,000
39Feb 22, 199714.52+1.52Minor35,200
40Mar 21, 194514.45+1.45Minor50,900
41May 11, 199614.30+1.30Minor32,800
42Aug 29, 200714.25+1.25Minor29,500
43Mar 30, 201114.25+1.25Minor27,500
44Jun 18, 198214.23+1.23Minor30,300
45Jun 17, 200014.17+1.17Minor—
46Jul 18, 200014.17+1.17Minor29,000
47Mar 13, 195014.10+1.10Minor34,100
48Feb 16, 196614.10+1.10Minor—
49Mar 5, 194814.00+1.00Minor42,600
50Oct 7, 196513.95+0.95Minor27,000

The worst floods along the Cedar River

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

June 15, 2008: 23.40 ft here, major flooding

  • Cedar FallsIA · Jun 10, 2008 · 102.10 ft · Major · its highest
  • Cedar RapidsIA · Jun 13, 2008 · 31.12 ft · Major · its highest
  • WaterlooIA · Jun 11, 2008 · 27.01 ft · Major · its highest
  • Charles CityIA · Jun 9, 2008 · 25.33 ft · Major · its highest
  • VintonIA · Jun 12, 2008 · 24.70 ft · Major · its highest
  • PaloIA · Jun 13, 2008 · 23.22 ft · Major · its highest
  • AustinMN · Jun 12, 2008 · 22.40 ft · Major
  • JanesvilleIA · Jun 10, 2008 · 19.45 ft · Major · its highest
  • WaverlyIA · Jun 10, 2008 · 19.33 ft · Major · its highest
  • LansingMN · Jun 12, 2008 · 20.55 ft · Moderate

September 29, 2016: 18.06 ft here, major flooding

  • Cedar FallsIA · Sep 24, 2016 · 98.90 ft · Major
  • WaterlooIA · Sep 24, 2016 · 22.95 ft · Major
  • Cedar RapidsIA · Sep 27, 2016 · 21.97 ft · Major
  • VintonIA · Sep 26, 2016 · 21.80 ft · Major
  • Charles CityIA · Sep 24, 2016 · 21.00 ft · Major
  • PaloIA · Sep 27, 2016 · 18.07 ft · Major
  • Cedar BluffIA · Sep 28, 2016 · 24.70 ft · Moderate · its highest
  • LansingMN · Sep 22, 2016 · 20.33 ft · Moderate
  • AustinMN · Sep 23, 2016 · 19.80 ft · Moderate
  • JanesvilleIA · Sep 24, 2016 · 16.27 ft · Moderate

July 2, 2014: 17.88 ft here, major flooding

Gauges on the Cedar River

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

Flood gauges on the Cedar River
AustinMN15.025.00 ft, Sep 16, 20047
Cedar BluffIA16.024.70 ft, Sep 28, 20160
Cedar FallsIA89.0102.10 ft, Jun 10, 20087
Cedar RapidsIA12.031.12 ft, Jun 13, 200827
Charles CityIA12.025.33 ft, Jun 9, 200816
JanesvilleIA13.019.45 ft, Jun 10, 20081
PaloIA12.523.22 ft, Jun 13, 20082
VintonIA15.024.70 ft, Jun 12, 20084
WaterlooIA13.027.01 ft, Jun 11, 20084
WaverlyIA12.019.33 ft, Jun 10, 20081
AustinMN10.023.26 ft, Sep 16, 20040
Conesville this gaugeIA13.023.40 ft, Jun 15, 200812
LansingMN18.022.98 ft, Sep 15, 20041
Otranto (IFC)IA1,141.01,148.60 ft, Sep 23, 20160
St. Ansgar (IFC)IA1,104.01,109.48 ft, Jun 23, 20240

Other gauges in Muscatine County

Flood gauges in Muscatine County
Illinois City15.024.10 ft, Jul 9, 199321
Muscatine16.025.61 ft, Jul 9, 199321

Muscatine County: every hazard · River floods across the country · Iowa

NOAA National Water Prediction Service, gauge CNEI4, 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.