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Old Mans Creek near Iowa City

Highest listed crest 18.61 ftFlood stage 12.0 ft84 crests since 1951

The Old Mans Creek near Iowa City crested above flood stage 56 times among the 84 crests the National Weather Service lists from 1951 to 2020. The highest, 18.61 ft on July 1, 2014, was minor flooding, 6.61 feet above flood stage.

The gauge

Highest listed crest
18.61 ft
July 1, 2014; 13,334 cubic feet per second
Flood stage
12.0 ft
No major stage set
Crests at major
0
56 above flood stage
Most recent flood crest
March 20, 2020
13.70 ft, minor flooding
Location
Johnson County
Near Iowa City (5.5 mi), Coralville (6.5 mi), North Liberty (9.5 mi)

Flood stages

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

Flood categories, Old Mans Creek near Iowa City
Action stage10.515Jul 21, 2017The level at which the NWS or its partners begin to take action
Flood stage (minor)12.056Mar 20, 2020Minimal or no property damage, but possibly some public threat

Every listed crest

84 crests from 1951 to 2020. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Old Mans Creek near Iowa City, 1951 to 2020 05101520ft Flood stage 12.0 ft Aug 28, 1951: 10.60 ft, action stage; 1,530 cubic feet per secondMar 12, 1952: 13.20 ft, minor flooding; 5,230 cubic feet per secondFeb 20, 1953: 12.60 ft, minor flooding; 3,510 cubic feet per secondMay 1, 1954: 5.47 ft, below flood stage; 460 cubic feet per secondApr 24, 1955: 9.06 ft, below flood stage; 1,120 cubic feet per secondAug 19, 1956: 10.46 ft, below flood stage; 1,430 cubic feet per secondAug 1, 1957: 4.92 ft, below flood stage; 380 cubic feet per secondSep 5, 1958: 8.64 ft, below flood stage; 1,040 cubic feet per secondMar 21, 1959: 12.93 ft, minor flooding; 4,180 cubic feet per secondMar 31, 1960: 13.58 ft, minor flooding; 6,840 cubic feet per secondMar 13, 1961: 10.80 ft, action stage; 1,640 cubic feet per secondMay 29, 1962: 14.52 ft, minor flooding; 12,000 cubic feet per secondMar 4, 1963: 12.20 ft, minor flooding; 1,400 cubic feet per secondJun 20, 1964: 10.42 ft, below flood stage; 1,480 cubic feet per secondSep 21, 1965: 15.55 ft, minor flooding; 7,750 cubic feet per secondMay 24, 1966: 13.00 ft, minor flooding; 3,400 cubic feet per secondJul 8, 1967: 9.33 ft, below flood stage; 1,200 cubic feet per secondJul 8, 1969: 12.73 ft, minor flooding; 2,570 cubic feet per secondMar 3, 1970: 14.38 ft, minor flooding; 7,400 cubic feet per secondFeb 19, 1971: 11.33 ft, action stage; 3,000 cubic feet per secondAug 6, 1972: 12.98 ft, minor flooding; 3,200 cubic feet per secondJan 18, 1973: 11.47 ft, action stage; 2,260 cubic feet per secondMay 17, 1974: 13.95 ft, minor flooding; 4,700 cubic feet per secondMar 20, 1975: 10.94 ft, action stage; 2,230 cubic feet per secondApr 24, 1976: 11.28 ft, action stage; 2,250 cubic feet per secondAug 16, 1977: 13.00 ft, minor flooding; 3,300 cubic feet per secondMar 18, 1979: 13.16 ft, minor flooding; 3,500 cubic feet per secondJun 29, 1981: 12.74 ft, minor flooding; 3,100 cubic feet per secondMay 15, 1982: 15.25 ft, minor flooding; 13,500 cubic feet per secondJun 28, 1983: 10.96 ft, action stage; 1,900 cubic feet per secondFeb 18, 1984: 10.31 ft, below flood stage; 1,700 cubic feet per secondFeb 23, 1985: 12.22 ft, minor flooding; 2,870 cubic feet per secondMay 18, 1986: 14.03 ft, minor flooding; 5,980 cubic feet per secondJun 20, 1987: 9.69 ft, below flood stage; 1,660 cubic feet per secondSep 9, 1989: 11.50 ft, action stage; 1,620 cubic feet per secondJun 17, 1990: 17.20 ft, minor flooding; 10,400 cubic feet per secondAug 21, 1990: 16.88 ft, minor flooding; 8,440 cubic feet per secondAug 25, 1990: 13.74 ft, minor flooding; 2,580 cubic feet per secondMar 2, 1991: 12.70 ft, minor flooding; 1,890 cubic feet per secondJul 30, 1992: 12.96 ft, minor flooding; 2,110 cubic feet per secondNov 20, 1992: 14.83 ft, minor flooding; 5,110 cubic feet per secondMar 4, 1993: 14.38 ft, minor flooding; 3,160 cubic feet per secondMar 22, 1993: 14.18 ft, minor flooding; 3,200 cubic feet per secondApr 21, 1993: 14.76 ft, minor flooding; 3,660 cubic feet per secondMay 5, 1993: 14.94 ft, minor flooding; 4,000 cubic feet per secondJul 6, 1993: 17.61 ft, minor flooding; 13,000 cubic feet per secondJul 25, 1993: 15.57 ft, minor flooding; 4,820 cubic feet per secondAug 10, 1993: 15.16 ft, minor flooding; 4,150 cubic feet per secondAug 16, 1993: 15.24 ft, minor flooding; 4,250 cubic feet per secondSep 27, 1993: 15.50 ft, minor flooding; 4,660 cubic feet per secondFeb 20, 1994: 10.61 ft, action stageJun 23, 1994: 10.58 ft, action stage; 1,590 cubic feet per secondMay 10, 1995: 13.53 ft, minor flooding; 2,710 cubic feet per secondMay 10, 1996: 16.92 ft, minor flooding; 8,930 cubic feet per secondMay 28, 1996: 14.01 ft, minor flooding; 3,340 cubic feet per secondFeb 21, 1997: 15.45 ft, minor flooding; 4,670 cubic feet per secondJun 29, 1998: 12.89 ft, minor flooding; 2,510 cubic feet per secondOct 17, 1998: 14.89 ft, minor flooding; 4,300 cubic feet per secondJun 14, 2000: 14.71 ft, minor flooding; 3,190 cubic feet per secondFeb 9, 2001: 14.86 ft, minor floodingFeb 25, 2001: 14.57 ft, minor flooding; 3,910 cubic feet per secondAug 23, 2002: 10.82 ft, action stage; 1,680 cubic feet per secondOct 3, 2002: 7.78 ft, below flood stage; 908 cubic feet per secondMar 5, 2004: 10.78 ft, action stage; 1,650 cubic feet per secondFeb 4, 2005: 8.59 ft, below flood stage; 1,090 cubic feet per secondApr 7, 2006: 5.99 ft, below flood stage; 529 cubic feet per secondJun 25, 2007: 15.07 ft, minor flooding; 3,280 cubic feet per secondJun 13, 2008: 15.29 ft, minor flooding; 3,420 cubic feet per secondMar 10, 2009: 15.85 ft, minor flooding; 5,140 cubic feet per secondOct 30, 2009: 15.55 ft, minor flooding; 4,360 cubic feet per secondFeb 17, 2011: 13.43 ft, minor floodingJun 10, 2011: 13.36 ft, minor flooding; 2,480 cubic feet per secondApr 15, 2012: 10.95 ft, action stage; 1,750 cubic feet per secondApr 18, 2013: 17.83 ft, minor flooding; 14,600 cubic feet per secondJul 1, 2014: 18.61 ft, minor flooding; 13,334 cubic feet per secondMay 5, 2015: 11.71 ft, action stage; 1,850 cubic feet per secondDec 14, 2015: 14.07 ft, minor flooding; 2,670 cubic feet per secondMay 19, 2017: 9.98 ft, below flood stage; 1,660 cubic feet per secondJul 21, 2017: 10.59 ft, action stage; 2,015 cubic feet per secondSep 5, 2018: 14.96 ft, minor flooding; 4,430 cubic feet per secondOct 8, 2018: 16.36 ft, minor flooding; 5,960 cubic feet per secondMar 14, 2019: 16.03 ft, minor flooding; 5,247 cubic feet per secondMay 19, 2019: 15.38 ft, minor flooding; 4,051 cubic feet per secondMar 20, 2020: 13.70 ft, minor flooding; 2,470 cubic feet per second Highest, 18.61 ft, Jul 1, 2014 1960197019801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Old Mans Creek near Iowa City 1950s: 3 1960s: 6 1970s: 5 1980s: 4 1990s: 21 21 2000s: 7 2010s: 9 2020s: 1 1950s1960s1970s1980s1990s2000s2010s2020s
  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 84 listed crests.

Highest listed crests, Old Mans Creek near Iowa City
1Jul 1, 201418.61+6.61Minor13,334
2Apr 18, 201317.83+5.83Minor14,600
3Jul 6, 199317.61+5.61Minor13,000
4Jun 17, 199017.20+5.20Minor10,400
5May 10, 199616.92+4.92Minor8,930
6Aug 21, 199016.88+4.88Minor8,440
7Oct 8, 201816.36+4.36Minor5,960
8Mar 14, 201916.03+4.03Minor5,247
9Mar 10, 200915.85+3.85Minor5,140
10Jul 25, 199315.57+3.57Minor4,820
11Sep 21, 196515.55+3.55Minor7,750
12Oct 30, 200915.55+3.55Minor4,360
13Sep 27, 199315.50+3.50Minor4,660
14Feb 21, 199715.45+3.45Minor4,670
15May 19, 201915.38+3.38Minor4,051
16Jun 13, 200815.29+3.29Minor3,420
17May 15, 198215.25+3.25Minor13,500
18Aug 16, 199315.24+3.24Minor4,250
19Aug 10, 199315.16+3.16Minor4,150
20Jun 25, 200715.07+3.07Minor3,280
21Sep 5, 201814.96+2.96Minor4,430
22May 5, 199314.94+2.94Minor4,000
23Oct 17, 199814.89+2.89Minor4,300
24Feb 9, 200114.86+2.86Minor—
25Nov 20, 199214.83+2.83Minor5,110
26Apr 21, 199314.76+2.76Minor3,660
27Jun 14, 200014.71+2.71Minor3,190
28Feb 25, 200114.57+2.57Minor3,910
29May 29, 196214.52+2.52Minor12,000
30Mar 3, 197014.38+2.38Minor7,400
31Mar 4, 199314.38+2.38Minor3,160
32Mar 22, 199314.18+2.18Minor3,200
33Dec 14, 201514.07+2.07Minor2,670
34May 18, 198614.03+2.03Minor5,980
35May 28, 199614.01+2.01Minor3,340
36May 17, 197413.95+1.95Minor4,700
37Aug 25, 199013.74+1.74Minor2,580
38Mar 20, 202013.70+1.70Minor2,470
39Mar 31, 196013.58+1.58Minor6,840
40May 10, 199513.53+1.53Minor2,710
41Feb 17, 201113.43+1.43Minor—
42Jun 10, 201113.36+1.36Minor2,480
43Mar 12, 195213.20+1.20Minor5,230
44Mar 18, 197913.16+1.16Minor3,500
45May 24, 196613.00+1.00Minor3,400
46Aug 16, 197713.00+1.00Minor3,300
47Aug 6, 197212.98+0.98Minor3,200
48Jul 30, 199212.96+0.96Minor2,110
49Mar 21, 195912.93+0.93Minor4,180
50Jun 29, 199812.89+0.89Minor2,510

Other gauges in Johnson County

Flood gauges in Johnson County
Coralville11.016.36 ft, Jun 17, 19900
Oxford10.016.05 ft, Jul 1, 20140
Iowa City23.531.53 ft, Jun 15, 20082
Iowa City9.015.61 ft, Aug 10, 19930
Iowa City7.010.50 ft, Jul 14, 19620

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

NOAA National Water Prediction Service, gauge IOCI4, 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.