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Sac River near Caplinger Mills

Highest listed crest 30.95 ftFlood stage 16.0 ft95 crests since 1974

The Sac River near Caplinger Mills crested at major flood stage 7 times among the 95 crests the National Weather Service lists from 1974 to 2022. The highest, 30.95 ft on April 12, 1994, was major flooding, 14.95 feet above flood stage. 2 other gauges on the Sac River crested above flood stage within a week of it.

The gauge

Highest listed crest
30.95 ft
April 12, 1994; 61,500 cubic feet per second
Flood stage
16.0 ft
Major flooding from 28.0 ft
Crests at major
7
29th of 173 gauges in Missouri
Most recent flood crest
May 6, 2022
25.81 ft, moderate flooding
Location
St. Clair County
Missouri

Flood stages

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

Flood categories, Sac River near Caplinger Mills
Action stage14.03Apr 29, 1996The level at which the NWS or its partners begin to take action
Flood stage (minor)16.041Apr 22, 2022Minimal or no property damage, but possibly some public threat
Moderate flood stage19.039May 6, 2022Some inundation of structures and roads near the stream
Major flood stage28.07Apr 30, 2017Extensive inundation of structures and roads

Every listed crest

95 crests from 1974 to 2022. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Sac River near Caplinger Mills, 1974 to 2022 010203040ft Flood stage 16.0 ftMajor 28.0 ft Nov 4, 1974: 25.99 ft, moderate flooding; 17,900 cubic feet per secondJul 4, 1976: 16.05 ft, minor flooding; 7,180 cubic feet per secondJun 24, 1977: 13.83 ft, below flood stage; 5,280 cubic feet per secondMar 25, 1978: 19.82 ft, moderate flooding; 10,900 cubic feet per secondApr 11, 1979: 19.62 ft, moderate flooding; 10,700 cubic feet per secondNov 21, 1979: 22.32 ft, moderate flooding; 13,700 cubic feet per secondJun 23, 1981: 18.87 ft, minor flooding; 10,500 cubic feet per secondJan 31, 1982: 15.85 ft, action stage; 7,060 cubic feet per secondFeb 23, 1985: 28.15 ft, major flooding; 33,200 cubic feet per secondNov 20, 1985: 24.16 ft, moderate flooding; 17,600 cubic feet per secondOct 2, 1986: 30.00 ft, major flooding; 60,000 cubic feet per secondApr 3, 1988: 22.80 ft, moderate flooding; 15,200 cubic feet per secondMay 23, 1989: 25.79 ft, moderate flooding; 21,800 cubic feet per secondMar 15, 1990: 24.07 ft, moderate flooding; 17,400 cubic feet per secondJan 16, 1991: 15.65 ft, action stage; 7,390 cubic feet per secondJul 27, 1992: 19.17 ft, moderate flooding; 10,900 cubic feet per secondSep 25, 1993: 29.93 ft, major flooding; 51,200 cubic feet per secondApr 12, 1994: 30.95 ft, major flooding; 61,500 cubic feet per secondJun 11, 1995: 25.48 ft, moderate floodingApr 29, 1996: 15.83 ft, action stage; 7,590 cubic feet per secondFeb 22, 1997: 24.61 ft, moderate flooding; 21,100 cubic feet per secondOct 6, 1998: 29.00 ft, major flooding; 41,500 cubic feet per secondMay 5, 1999: 22.70 ft, moderate flooding; 17,000 cubic feet per secondAug 28, 2000: 12.26 ft, below flood stage; 4,090 cubic feet per secondFeb 25, 2001: 20.14 ft, moderate flooding; 13,400 cubic feet per secondMay 8, 2002: 23.90 ft, moderate flooding; 18,600 cubic feet per secondAug 26, 2003: 12.61 ft, below flood stage; 4,960 cubic feet per secondApr 25, 2004: 19.32 ft, moderate flooding; 12,200 cubic feet per secondJan 6, 2005: 24.95 ft, moderate flooding; 20,500 cubic feet per secondAug 19, 2006: 8.84 ft, below flood stage; 2,000 cubic feet per secondJul 2, 2007: 25.85 ft, moderate flooding; 22,600 cubic feet per secondMar 19, 2008: 24.98 ft, moderate flooding; 20,500 cubic feet per secondApr 1, 2008: 19.34 ft, moderate floodingApr 11, 2008: 26.12 ft, moderate flooding; 23,300 cubic feet per secondApr 19, 2008: 16.56 ft, minor floodingApr 25, 2008: 16.22 ft, minor floodingMay 9, 2008: 18.86 ft, minor floodingMay 28, 2008: 16.65 ft, minor floodingJun 10, 2008: 20.06 ft, moderate floodingJun 14, 2008: 21.00 ft, moderate floodingJun 21, 2008: 16.38 ft, minor floodingSep 15, 2008: 17.61 ft, minor flooding; 10,116 cubic feet per secondMay 9, 2009: 25.88 ft, moderate flooding; 22,700 cubic feet per secondJun 17, 2009: 20.49 ft, moderate flooding; 13,498 cubic feet per secondOct 10, 2009: 26.03 ft, moderate flooding; 23,100 cubic feet per secondMar 26, 2010: 16.43 ft, minor flooding; 8,823 cubic feet per secondFeb 25, 2011: 16.71 ft, minor flooding; 9,104 cubic feet per secondApr 26, 2011: 17.11 ft, minor flooding; 9,577 cubic feet per secondMay 19, 2011: 18.47 ft, minor flooding; 11,163 cubic feet per secondMay 21, 2012: 19.11 ft, moderate flooding; 11,900 cubic feet per secondApr 11, 2013: 19.10 ft, moderate flooding; 11,963 cubic feet per secondApr 28, 2013: 16.64 ft, minor flooding; 9,064 cubic feet per secondMay 4, 2013: 18.10 ft, minor flooding; 10,754 cubic feet per secondJun 2, 2013: 23.93 ft, moderate flooding; 19,100 cubic feet per secondAug 6, 2013: 21.80 ft, moderate flooding; 15,485 cubic feet per secondApr 11, 2014: 10.88 ft, below flood stage; 3,280 cubic feet per secondMay 31, 2015: 16.05 ft, minor flooding; 8,309 cubic feet per secondJun 18, 2015: 17.21 ft, minor flooding; 9,668 cubic feet per secondJun 26, 2015: 18.15 ft, minor flooding; 10,800 cubic feet per secondJul 9, 2015: 16.48 ft, minor flooding; 8,803 cubic feet per secondNov 28, 2015: 18.48 ft, minor flooding; 11,248 cubic feet per secondDec 14, 2015: 17.82 ft, minor flooding; 10,443 cubic feet per secondDec 28, 2015: 30.83 ft, major flooding; 49,600 cubic feet per secondMay 26, 2016: 16.71 ft, minor flooding; 8,952 cubic feet per secondApr 22, 2017: 16.27 ft, minor flooding; 8,570 cubic feet per secondApr 30, 2017: 28.39 ft, major flooding; 33,000 cubic feet per secondMay 4, 2017: 22.48 ft, moderate flooding; 16,700 cubic feet per secondMay 9, 2017: 16.29 ft, minor flooding; 8,590 cubic feet per secondMay 13, 2017: 17.82 ft, minor flooding; 10,400 cubic feet per secondMay 21, 2017: 17.51 ft, minor flooding; 10,000 cubic feet per secondMay 28, 2017: 17.48 ft, minor flooding; 10,000 cubic feet per secondJun 2, 2017: 16.27 ft, minor flooding; 8,570 cubic feet per secondJun 16, 2017: 16.80 ft, minor flooding; 9,058 cubic feet per secondFeb 25, 2018: 16.54 ft, minor flooding; 8,880 cubic feet per secondMar 13, 2019: 20.09 ft, moderate flooding; 13,400 cubic feet per secondMay 2, 2019: 27.30 ft, moderate flooding; 27,600 cubic feet per secondMay 8, 2019: 17.95 ft, minor flooding; 10,600 cubic feet per secondMay 22, 2019: 27.64 ft, moderate flooding; 29,200 cubic feet per secondJun 17, 2019: 17.19 ft, minor flooding; 9,650 cubic feet per secondJun 21, 2019: 16.30 ft, minor flooding; 8,600 cubic feet per secondJul 7, 2019: 20.36 ft, moderate flooding; 13,800 cubic feet per secondJul 11, 2019: 16.60 ft, minor flooding; 8,950 cubic feet per secondJan 12, 2020: 18.57 ft, minor flooding; 11,300 cubic feet per secondFeb 25, 2020: 17.63 ft, minor flooding; 10,200 cubic feet per secondMar 20, 2020: 20.42 ft, moderate flooding; 13,300 cubic feet per secondApr 26, 2020: 20.73 ft, moderate flooding; 14,300 cubic feet per secondMay 16, 2020: 18.80 ft, minor flooding; 11,700 cubic feet per secondMay 27, 2020: 19.88 ft, moderate flooding; 13,100 cubic feet per secondJan 26, 2021: 16.12 ft, minor flooding; 8,400 cubic feet per secondMar 15, 2021: 20.81 ft, moderate flooding; 14,400 cubic feet per secondMay 10, 2021: 17.14 ft, minor flooding; 9,590 cubic feet per secondMay 18, 2021: 17.49 ft, minor flooding; 10,000 cubic feet per secondMay 27, 2021: 16.00 ft, minor flooding; 8,260 cubic feet per secondApr 22, 2022: 17.36 ft, minor flooding; 9,851 cubic feet per secondMay 6, 2022: 25.81 ft, moderate flooding; 22,376 cubic feet per second Highest, 30.95 ft, Apr 12, 1994 19801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Sac River near Caplinger Mills 1970s: 5 1980s: 6 1990s: 8 2000s: 19 2010s: 36 36 2020s: 13 1970s1980s1990s2000s2010s2020s
  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 95 listed crests.

Highest listed crests, Sac River near Caplinger Mills
1Apr 12, 199430.95+14.95Major61,500
2Dec 28, 201530.83+14.83Major49,600
3Oct 2, 198630.00+14.00Major60,000
4Sep 25, 199329.93+13.93Major51,200
5Oct 6, 199829.00+13.00Major41,500
6Apr 30, 201728.39+12.39Major33,000
7Feb 23, 198528.15+12.15Major33,200
8May 22, 201927.64+11.64Moderate29,200
9May 2, 201927.30+11.30Moderate27,600
10Apr 11, 200826.12+10.12Moderate23,300
11Oct 10, 200926.03+10.03Moderate23,100
12Nov 4, 197425.99+9.99Moderate17,900
13May 9, 200925.88+9.88Moderate22,700
14Jul 2, 200725.85+9.85Moderate22,600
15May 6, 202225.81+9.81Moderate22,376
16May 23, 198925.79+9.79Moderate21,800
17Jun 11, 199525.48+9.48Moderate—
18Mar 19, 200824.98+8.98Moderate20,500
19Jan 6, 200524.95+8.95Moderate20,500
20Feb 22, 199724.61+8.61Moderate21,100
21Nov 20, 198524.16+8.16Moderate17,600
22Mar 15, 199024.07+8.07Moderate17,400
23Jun 2, 201323.93+7.93Moderate19,100
24May 8, 200223.90+7.90Moderate18,600
25Apr 3, 198822.80+6.80Moderate15,200
26May 5, 199922.70+6.70Moderate17,000
27May 4, 201722.48+6.48Moderate16,700
28Nov 21, 197922.32+6.32Moderate13,700
29Aug 6, 201321.80+5.80Moderate15,485
30Jun 14, 200821.00+5.00Moderate—
31Mar 15, 202120.81+4.81Moderate14,400
32Apr 26, 202020.73+4.73Moderate14,300
33Jun 17, 200920.49+4.49Moderate13,498
34Mar 20, 202020.42+4.42Moderate13,300
35Jul 7, 201920.36+4.36Moderate13,800
36Feb 25, 200120.14+4.14Moderate13,400
37Mar 13, 201920.09+4.09Moderate13,400
38Jun 10, 200820.06+4.06Moderate—
39May 27, 202019.88+3.88Moderate13,100
40Mar 25, 197819.82+3.82Moderate10,900
41Apr 11, 197919.62+3.62Moderate10,700
42Apr 1, 200819.34+3.34Moderate—
43Apr 25, 200419.32+3.32Moderate12,200
44Jul 27, 199219.17+3.17Moderate10,900
45May 21, 201219.11+3.11Moderate11,900
46Apr 11, 201319.10+3.10Moderate11,963
47Jun 23, 198118.87+2.87Minor10,500
48May 9, 200818.86+2.86Minor—
49May 16, 202018.80+2.80Minor11,700
50Jan 12, 202018.57+2.57Minor11,300

The worst floods along the Sac River

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

April 12, 1994: 30.95 ft here, major flooding

December 28, 2015: 30.83 ft here, major flooding

September 25, 1993: 29.93 ft here, major flooding

Gauges on the Sac River

In USGS station-number order, which runs downstream within a river basin.

Flood gauges on the Sac River
DadevilleMO14.027.56 ft, Sep 25, 19933
Stockton DamMO20.031.80 ft, May 19, 19430
Highway J near StocktonMO17.523.86 ft, Dec 27, 20150
Caplinger Mills this gaugeMO16.030.95 ft, Apr 12, 19947

Other gauges in St. Clair County

Flood gauges in St. Clair County
Taberville23.043.65 ft, May 27, 20190

St. Clair County: every hazard · River floods across the country · Missouri

NOAA National Water Prediction Service, gauge CMZM7, 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.