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Mississippi River at Saverton Lock and Dam 22

Highest listed crest 29.58 ftFlood stage 16.0 ft145 crests since 1937

The Mississippi River at Saverton Lock and Dam 22 crested at major flood stage 9 times among the 145 crests the National Weather Service lists from 1937 to 2026. The highest, 29.58 ft on July 25, 1993, was major flooding, 13.58 feet above flood stage. 7 other gauges on the Mississippi River crested above flood stage within a week of it, 7 at their own highest listed crest.

The gauge

Highest listed crest
29.58 ft
July 25, 1993; 436,040 cubic feet per second
Flood stage
16.0 ft
Major flooding from 24.0 ft
Crests at major
9
21st of 173 gauges in Missouri
Most recent flood crest
April 28, 2026
18.71 ft, minor flooding
Location
Ralls County
Near Hannibal (9.4 mi)

Flood stages

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

Flood categories, Mississippi River at Saverton Lock and Dam 22
Action stage14.02Apr 18, 2006The level at which the NWS or its partners begin to take action
Flood stage (minor)16.098Apr 28, 2026Minimal or no property damage, but possibly some public threat
Moderate flood stage20.036May 6, 2023Some inundation of structures and roads near the stream
Major flood stage24.09Jun 2, 2019Extensive inundation of structures and roads

Every listed crest

145 crests from 1937 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Mississippi River at Saverton Lock and Dam 22, 1937 to 2026 1015202530ft Flood stage 16.0 ftMajor 24.0 ft Mar 12, 1937: 16.60 ft, minor floodingSep 28, 1938: 16.70 ft, minor floodingMar 15, 1939: 16.80 ft, minor floodingApr 18, 1939: 16.40 ft, minor floodingJun 19, 1942: 16.30 ft, minor floodingMay 21, 1943: 16.17 ft, minor floodingJun 19, 1943: 16.18 ft, minor floodingApr 26, 1944: 18.62 ft, minor floodingMay 28, 1944: 20.94 ft, moderate floodingJun 24, 1944: 17.66 ft, minor floodingMar 28, 1945: 18.67 ft, minor floodingMay 19, 1945: 17.27 ft, minor floodingJun 11, 1945: 17.17 ft, minor floodingJun 18, 1945: 18.59 ft, minor floodingJan 12, 1946: 18.03 ft, minor floodingMar 26, 1946: 17.20 ft, minor floodingMar 28, 1947: 17.72 ft, minor floodingApr 8, 1947: 17.72 ft, minor floodingJun 10, 1947: 22.76 ft, moderate floodingMar 24, 1948: 20.17 ft, moderate floodingJun 22, 1950: 17.60 ft, minor floodingApr 5, 1951: 18.26 ft, minor floodingMay 13, 1951: 20.98 ft, moderate floodingApr 26, 1952: 20.16 ft, moderate floodingJan 18, 1960: 16.08 ft, minor floodingApr 4, 1960: 22.03 ft, moderate flooding; 313,619 cubic feet per secondMay 14, 1960: 17.49 ft, minor floodingApr 7, 1961: 17.78 ft, minor floodingApr 9, 1962: 19.67 ft, minor floodingMay 1, 1965: 23.26 ft, moderate flooding; 337,248 cubic feet per secondApr 17, 1967: 18.23 ft, minor floodingApr 30, 1969: 19.22 ft, minor floodingJul 11, 1969: 21.65 ft, moderate floodingSep 25, 1970: 17.76 ft, minor floodingMay 13, 1972: 16.00 ft, minor floodingApr 25, 1973: 26.80 ft, major flooding; 400,240 cubic feet per secondMay 22, 1974: 21.56 ft, moderate floodingJun 28, 1974: 19.49 ft, minor floodingMay 10, 1975: 19.78 ft, minor floodingApr 27, 1976: 21.03 ft, moderate floodingApr 13, 1978: 16.26 ft, minor floodingApr 13, 1979: 21.88 ft, moderate floodingJul 6, 1981: 16.10 ft, minor floodingMar 22, 1982: 18.40 ft, minor floodingApr 19, 1982: 19.84 ft, minor floodingMay 3, 1982: 16.40 ft, minor floodingJun 2, 1982: 16.13 ft, minor floodingJul 21, 1982: 17.33 ft, minor floodingDec 5, 1982: 19.52 ft, minor floodingApr 5, 1983: 23.40 ft, moderate flooding; 339,954 cubic feet per secondMar 24, 1984: 16.30 ft, minor floodingMay 6, 1984: 18.00 ft, minor floodingJul 1, 1984: 18.20 ft, minor floodingFeb 28, 1985: 18.10 ft, minor floodingMar 6, 1985: 22.00 ft, moderate floodingApr 17, 1986: 18.10 ft, minor floodingMay 20, 1986: 21.50 ft, moderate floodingJul 14, 1986: 16.72 ft, minor floodingSep 26, 1986: 16.40 ft, minor floodingOct 5, 1986: 24.10 ft, major flooding; 353,402 cubic feet per secondJun 23, 1990: 20.93 ft, moderate flooding; 292,990 cubic feet per secondApr 22, 1991: 17.77 ft, minor flooding; 238,330 cubic feet per secondMay 2, 1992: 16.89 ft, minor flooding; 224,905 cubic feet per secondApr 27, 1993: 23.04 ft, moderate flooding; 332,608 cubic feet per secondJul 25, 1993: 29.58 ft, major flooding; 436,040 cubic feet per secondApr 13, 1995: 17.25 ft, minor flooding; 229,304 cubic feet per secondMay 26, 1995: 21.08 ft, moderate flooding; 294,949 cubic feet per secondMay 12, 1996: 21.83 ft, moderate flooding; 309,872 cubic feet per secondMay 30, 1996: 23.68 ft, moderate flooding; 345,356 cubic feet per secondFeb 27, 1997: 18.20 ft, minor flooding; 244,980 cubic feet per secondApr 23, 1997: 19.97 ft, minor flooding; 276,076 cubic feet per secondApr 15, 1998: 22.99 ft, moderate flooding; 332,028 cubic feet per secondJul 9, 1998: 19.16 ft, minor flooding; 262,125 cubic feet per secondApr 30, 1999: 19.37 ft, minor flooding; 265,802 cubic feet per secondMay 29, 1999: 18.18 ft, minor flooding; 246,013 cubic feet per secondJun 19, 2000: 16.47 ft, minor flooding; 218,136 cubic feet per secondJun 28, 2000: 17.90 ft, minor flooding; 240,723 cubic feet per secondMar 17, 2001: 16.20 ft, minor floodingApr 28, 2001: 22.60 ft, moderate flooding; 324,263 cubic feet per secondMay 16, 2001: 26.12 ft, major flooding; 389,541 cubic feet per secondJun 7, 2001: 20.10 ft, moderate floodingJun 17, 2001: 16.09 ft, minor flooding; 211,987 cubic feet per secondMay 14, 2002: 20.98 ft, moderate flooding; 292,658 cubic feet per secondJun 15, 2002: 19.00 ft, minor flooding; 254,843 cubic feet per secondMay 26, 2003: 16.35 ft, minor flooding; 216,100 cubic feet per secondJun 5, 2004: 20.29 ft, moderate flooding; 282,000 cubic feet per secondApr 15, 2005: 15.07 ft, action stage; 194,800 cubic feet per secondApr 18, 2006: 14.25 ft, action stageMar 28, 2007: 16.12 ft, minor floodingApr 4, 2007: 16.37 ft, minor floodingApr 14, 2007: 17.18 ft, minor floodingApr 28, 2007: 16.38 ft, minor floodingAug 27, 2007: 17.52 ft, minor floodingApr 27, 2008: 20.58 ft, moderate floodingMay 5, 2008: 22.38 ft, moderate floodingJun 18, 2008: 28.00 ft, major floodingSep 15, 2008: 18.02 ft, minor floodingMar 12, 2009: 21.07 ft, moderate flooding; 294,345 cubic feet per secondMay 18, 2009: 20.06 ft, moderate flooding; 27,860 cubic feet per secondNov 1, 2009: 18.11 ft, minor floodingMar 23, 2010: 19.31 ft, minor floodingApr 27, 2010: 17.79 ft, minor floodingMay 15, 2010: 19.19 ft, minor floodingJun 16, 2010: 17.97 ft, minor floodingJun 24, 2010: 21.68 ft, moderate floodingOct 9, 2010: 17.28 ft, minor floodingApr 24, 2011: 22.30 ft, moderate flooding; 323,000 cubic feet per secondJun 4, 2011: 19.67 ft, minor flooding; 272,600 cubic feet per secondJun 17, 2011: 22.65 ft, moderate flooding; 330,300 cubic feet per secondJun 29, 2011: 19.67 ft, minor flooding; 272,600 cubic feet per secondMar 14, 2013: 17.26 ft, minor flooding; 230,900 cubic feet per secondApr 21, 2013: 26.42 ft, major flooding; 421,050 cubic feet per secondJun 1, 2013: 24.62 ft, major flooding; 359,000 cubic feet per secondJul 5, 2013: 20.82 ft, moderate flooding; 294,100 cubic feet per secondMay 16, 2014: 17.54 ft, minor flooding; 235,500 cubic feet per secondJul 8, 2014: 25.78 ft, major flooding; 390,400 cubic feet per secondSep 12, 2014: 18.24 ft, minor flooding; 244,800 cubic feet per secondJun 28, 2015: 22.91 ft, moderate flooding; 326,100 cubic feet per secondJul 9, 2015: 16.26 ft, minor flooding; 214,000 cubic feet per secondJul 13, 2015: 17.86 ft, minor flooding; 238,500 cubic feet per secondDec 3, 2015: 16.56 ft, minor flooding; 218,500 cubic feet per secondDec 16, 2015: 16.83 ft, minor flooding; 222,500 cubic feet per secondDec 29, 2015: 21.49 ft, moderate flooding; 298,800 cubic feet per secondApr 1, 2016: 16.46 ft, minor flooding; 216,470 cubic feet per secondOct 7, 2016: 18.94 ft, minor flooding; 257,000 cubic feet per secondApr 8, 2017: 17.31 ft, minor flooding; 229,500 cubic feet per secondMay 3, 2017: 19.47 ft, minor flooding; 265,000 cubic feet per secondMay 20, 2017: 16.32 ft, minor flooding; 215,000 cubic feet per secondJun 3, 2017: 18.65 ft, minor flooding; 251,900 cubic feet per secondMay 16, 2018: 19.03 ft, minor flooding; 258,600 cubic feet per secondJul 5, 2018: 18.52 ft, minor flooding; 249,700 cubic feet per secondSep 10, 2018: 19.69 ft, minor flooding; 268,300 cubic feet per secondOct 12, 2018: 23.93 ft, moderate flooding; 346,600 cubic feet per secondNov 6, 2018: 16.35 ft, minor floodingJun 2, 2019: 28.48 ft, major floodingOct 17, 2019: 19.32 ft, minor floodingApr 2, 2020: 18.98 ft, minor floodingJun 12, 2020: 17.30 ft, minor floodingJul 2, 2020: 16.65 ft, minor floodingMar 19, 2021: 16.36 ft, minor flooding; 215,600 cubic feet per secondApr 12, 2021: 17.25 ft, minor flooding; 228,900 cubic feet per secondMay 6, 2023: 20.38 ft, moderate floodingApr 30, 2024: 16.78 ft, minor floodingJul 28, 2025: 16.13 ft, minor floodingApr 28, 2026: 18.71 ft, minor flooding; 253,000 cubic feet per second Highest, 29.58 ft, Jul 25, 1993 19401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Mississippi River at Saverton Lock and Dam 22 1930s: 4 1940s: 16 1950s: 4 1960s: 9 1970s: 9 1980s: 18 1990s: 15 2000s: 23 2010s: 36 36 2020s: 9 1930s1940s1950s1960s1970s1980s1990s2000s2010s2020s
  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 145 listed crests.

Highest listed crests, Mississippi River at Saverton Lock and Dam 22
1Jul 25, 199329.58+13.58Major436,040
2Jun 2, 201928.48+12.48Major—
3Jun 18, 200828.00+12.00Major—
4Apr 25, 197326.80+10.80Major400,240
5Apr 21, 201326.42+10.42Major421,050
6May 16, 200126.12+10.12Major389,541
7Jul 8, 201425.78+9.78Major390,400
8Jun 1, 201324.62+8.62Major359,000
9Oct 5, 198624.10+8.10Major353,402
10Oct 12, 201823.93+7.93Moderate346,600
11May 30, 199623.68+7.68Moderate345,356
12Apr 5, 198323.40+7.40Moderate339,954
13May 1, 196523.26+7.26Moderate337,248
14Apr 27, 199323.04+7.04Moderate332,608
15Apr 15, 199822.99+6.99Moderate332,028
16Jun 28, 201522.91+6.91Moderate326,100
17Jun 10, 194722.76+6.76Moderate—
18Jun 17, 201122.65+6.65Moderate330,300
19Apr 28, 200122.60+6.60Moderate324,263
20May 5, 200822.38+6.38Moderate—
21Apr 24, 201122.30+6.30Moderate323,000
22Apr 4, 196022.03+6.03Moderate313,619
23Mar 6, 198522.00+6.00Moderate—
24Apr 13, 197921.88+5.88Moderate—
25May 12, 199621.83+5.83Moderate309,872
26Jun 24, 201021.68+5.68Moderate—
27Jul 11, 196921.65+5.65Moderate—
28May 22, 197421.56+5.56Moderate—
29May 20, 198621.50+5.50Moderate—
30Dec 29, 201521.49+5.49Moderate298,800
31May 26, 199521.08+5.08Moderate294,949
32Mar 12, 200921.07+5.07Moderate294,345
33Apr 27, 197621.03+5.03Moderate—
34May 13, 195120.98+4.98Moderate—
35May 14, 200220.98+4.98Moderate292,658
36May 28, 194420.94+4.94Moderate—
37Jun 23, 199020.93+4.93Moderate292,990
38Jul 5, 201320.82+4.82Moderate294,100
39Apr 27, 200820.58+4.58Moderate—
40May 6, 202320.38+4.38Moderate—
41Jun 5, 200420.29+4.29Moderate282,000
42Mar 24, 194820.17+4.17Moderate—
43Apr 26, 195220.16+4.16Moderate—
44Jun 7, 200120.10+4.10Moderate—
45May 18, 200920.06+4.06Moderate27,860
46Apr 23, 199719.97+3.97Minor276,076
47Apr 19, 198219.84+3.84Minor—
48May 10, 197519.78+3.78Minor—
49Sep 10, 201819.69+3.69Minor268,300
50Apr 9, 196219.67+3.67Minor—

The worst floods along the Mississippi River

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

July 25, 1993: 29.58 ft here, major flooding

June 2, 2019: 28.48 ft here, major flooding

June 18, 2008: 28.00 ft here, major flooding

Gauges on the Mississippi River

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

Flood gauges on the Mississippi River
TiptonvilleMO37.048.35 ft, May 5, 20112
Alma - Pool 5MN672.0672.13 ft, Apr 16, 20010
AltonIL21.039.55 ft, Aug 1, 19937
Baton RougeLA35.047.28 ft, May 15, 192731
BellevueIL17.023.51 ft, Apr 26, 196511
BrainerdMN16.017.61 ft, Jun 28, 20120
BrownsvilleMN635.0640.20 ft, Apr 22, 19650
BurlingtonIL15.025.73 ft, Jun 17, 200836
CamancheIA17.024.65 ft, Apr 28, 196520
Canton Lock and Dam 20MO15.027.88 ft, Jul 9, 19933
Cape GirardeauMO32.048.86 ft, Jan 2, 201615
CaruthersvilleMO32.047.61 ft, May 7, 20112
ChesterIL27.049.74 ft, Aug 7, 19939
Clarksville Lock and Dam 24MO25.037.73 ft, Jul 29, 199310
ClaytonIA620.0627.28 ft, Apr 24, 19650
DakotaMN644.0649.08 ft, Apr 21, 19650
DonaldsonvilleLA27.036.01 ft, May 15, 19273
Dubuque (LD11)IA16.025.69 ft, Apr 26, 196513
Dubuque (Railroad Bridge)IA17.026.81 ft, Apr 26, 196518
Fort RipleyMN10.514.15 ft, Apr 8, 19970
Fridley abv 37th Ave NEMN16.020.00 ft, Apr 17, 19656
FultonIL16.024.75 ft, Apr 28, 196513
GladstoneIL10.022.46 ft, Jun 17, 200824
GraftonIL20.038.17 ft, Aug 1, 199315
Gregory LandingMO15.028.49 ft, Jul 9, 19934
HannibalMO17.031.80 ft, Jul 15, 199310
HelenaAR44.060.21 ft, Feb 12, 19374
HerculaneumMO26.029.79 ft, Jul 10, 20240
HickmanKY34.054.29 ft, May 2, 20113
Hwy 169 at ChamplinMN12.017.96 ft, Apr 12, 19653
Hwy 610 in Brooklyn ParkMN12.019.53 ft, Apr 17, 19654
Illinois CityIA15.024.10 ft, Jul 9, 199321
KeithsburgIA14.024.49 ft, Jun 17, 200822
KeokukIA16.027.58 ft, Jul 10, 199324
La Crosse - Pool 8WI12.017.89 ft, Apr 22, 19654
LaGrangeMO17.030.00 ft, Jul 13, 19934
Lake CityWI16.022.18 ft, Apr 19, 19653
Lansing - Pool 9IA17.022.50 ft, Apr 24, 19651
LeClaireIA11.017.75 ft, Apr 28, 196516
LouisianaMO15.028.40 ft, Jul 28, 19934
McGregorIA16.025.38 ft, Apr 24, 19653
Mel Price (Alton) Lock and DamIL21.042.72 ft, Aug 1, 19938
MemphisTN34.048.70 ft, Feb 10, 19372
MuscatineIA16.025.61 ft, Jul 9, 199321
NatchezMS48.061.95 ft, May 19, 20116
New BostonIL15.025.90 ft, Jul 9, 199322
New MadridMO34.048.35 ft, May 6, 20114
New OrleansLA17.021.27 ft, Apr 25, 19225
OsceolaAR28.050.90 ft, Feb 7, 193742
QuincyIL19.032.13 ft, Jul 13, 19937
Quincy Lock and Dam 21IL18.031.30 ft, Jul 13, 19937
Red River LandingLA48.063.39 ft, May 18, 20110
Red WingMN14.020.70 ft, Apr 18, 19659
ReserveLA22.026.00 ft, Jun 11, 19291
Rock IslandIL15.022.70 ft, May 2, 201920
Saverton Lock and Dam 22 this gaugeMO16.029.58 ft, Jul 25, 19939
St. CloudMN9.011.44 ft, Apr 8, 19971
St. LouisMO30.049.58 ft, Aug 1, 19939
St. PaulMN14.026.01 ft, Apr 16, 196516
ThebesIL33.047.74 ft, Jan 2, 201612
Tunica Mhoon LandingMS30.053.20 ft, Feb 10, 19375
VicksburgLA43.057.10 ft, May 19, 201112
Wabasha - Pool 4MN12.020.05 ft, Apr 19, 19657
Winfield Lock and Dam 25MO26.039.62 ft, Aug 1, 19939
Winona - Pool 6MN13.020.77 ft, Apr 19, 19655
Lock and Dam 10 - GuttenbergIA15.023.65 ft, Apr 24, 19652
Lock and Dam 2 - HastingsMN15.025.90 ft, Apr 17, 196512
Lock and Dam 3 - Red WingMN680.5687.77 ft, Apr 19, 19658
Lock and Dam 4 - AlmaWI16.019.78 ft, Apr 19, 19652
Lock and Dam 5 - Minnesota CityMN660.0667.85 ft, Apr 19, 19654
Lock and Dam 5a - WinonaMN655.0663.35 ft, Apr 19, 19654
Lock and Dam 6 - TrempealeauMN647.0653.02 ft, Apr 21, 19654
Lock and Dam 7 - La CrescentMN641.0647.38 ft, Apr 21, 19652
Lock and Dam 8 - GenoaWI631.0638.40 ft, Apr 22, 19653
Lock and Dam 9 - LynxvilleWI625.0633.16 ft, Apr 24, 19653
AitkinMN13.022.49 ft, May 20, 195011
Arkansas CityAR37.059.20 ft, Apr 21, 192715
GreenvilleAR48.065.40 ft, Apr 21, 192718

Other gauges in Ralls County

Flood gauges in Ralls County
New London19.031.80 ft, Apr 22, 19737

Ralls County: every hazard · River floods across the country · Missouri

NOAA National Water Prediction Service, gauge SVRM7, 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.