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Meramec River near Eureka

Highest listed crest 46.11 ftFlood stage 19.0 ft71 crests since 1916

The Meramec River near Eureka crested at major flood stage 15 times among the 71 crests the National Weather Service lists from 1916 to 2026. The highest, 46.11 ft on May 3, 2017, was major flooding, 27.11 feet above flood stage. 6 other gauges on the Meramec River crested above flood stage within a week of it, 2 at their own highest listed crest.

The gauge

Highest listed crest
46.11 ft
May 3, 2017; 161,880 cubic feet per second
Flood stage
19.0 ft
Major flooding from 31.0 ft
Crests at major
15
6th of 173 gauges in Missouri
Most recent flood crest
March 8, 2026
23.60 ft, minor flooding
Location
St. Louis County
Near Eureka (3.0 mi), Ellisville (5.9 mi), Wildwood (6.5 mi)

Flood stages

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

Flood categories, Meramec River near Eureka
Action stage17.06Jun 20, 2009The level at which the NWS or its partners begin to take action
Flood stage (minor)19.036Mar 8, 2026Minimal or no property damage, but possibly some public threat
Moderate flood stage26.010Mar 27, 2023Some inundation of structures and roads near the stream
Major flood stage31.015Apr 8, 2025Extensive inundation of structures and roads

Every listed crest

71 crests from 1916 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Meramec River near Eureka, 1916 to 2026 1020304050ft Flood stage 19.0 ftMajor 31.0 ft Feb 1, 1916: 39.00 ft, major flooding; 113,000 cubic feet per secondApr 14, 1952: 16.99 ft, below flood stage; 25,500 cubic feet per secondMar 23, 1955: 17.84 ft, action stage; 28,100 cubic feet per secondMar 23, 1962: 19.51 ft, minor flooding; 33,900 cubic feet per secondMar 12, 1964: 18.22 ft, action stage; 29,900 cubic feet per secondFeb 13, 1966: 26.85 ft, moderate flooding; 57,800 cubic feet per secondMay 16, 1967: 15.99 ft, below flood stage; 28,200 cubic feet per secondDec 24, 1967: 20.66 ft, minor flooding; 40,000 cubic feet per secondMay 3, 1970: 17.60 ft, action stage; 32,200 cubic feet per secondNov 4, 1972: 22.33 ft, minor flooding; 39,000 cubic feet per secondNov 28, 1973: 20.87 ft, minor flooding; 35,400 cubic feet per secondFeb 25, 1975: 23.32 ft, minor flooding; 41,500 cubic feet per secondMar 30, 1977: 24.39 ft, minor flooding; 44,200 cubic feet per secondMar 27, 1978: 20.61 ft, minor flooding; 34,100 cubic feet per secondApr 14, 1979: 33.43 ft, major flooding; 77,200 cubic feet per secondMay 21, 1981: 22.95 ft, minor flooding; 40,200 cubic feet per secondFeb 20, 1982: 22.76 ft, minor flooding; 41,800 cubic feet per secondDec 6, 1982: 42.89 ft, major flooding; 145,000 cubic feet per secondMay 3, 1983: 36.60 ft, major floodingApr 23, 1984: 18.09 ft, action stage; 28,300 cubic feet per secondNov 30, 1984: 20.20 ft, minor floodingFeb 26, 1985: 31.72 ft, major flooding; 76,300 cubic feet per secondApr 2, 1985: 26.80 ft, moderate floodingJun 21, 1985: 29.20 ft, moderate floodingNov 22, 1985: 34.68 ft, major flooding; 84,600 cubic feet per secondOct 5, 1986: 22.85 ft, minor flooding; 39,700 cubic feet per secondDec 29, 1987: 25.23 ft, minor flooding; 46,600 cubic feet per secondMay 28, 1990: 25.65 ft, minor flooding; 48,000 cubic feet per secondJan 1, 1991: 22.94 ft, minor flooding; 39,100 cubic feet per secondApr 22, 1992: 22.94 ft, minor flooding; 39,100 cubic feet per secondSep 26, 1993: 36.72 ft, major flooding; 95,200 cubic feet per secondNov 17, 1993: 35.60 ft, major floodingApr 14, 1994: 40.90 ft, major flooding; 123,000 cubic feet per secondMay 20, 1995: 31.18 ft, major flooding; 69,700 cubic feet per secondApr 30, 1996: 30.23 ft, moderate flooding; 66,900 cubic feet per secondMar 1, 1997: 21.95 ft, minor flooding; 40,800 cubic feet per secondJul 30, 1998: 26.30 ft, moderate flooding; 53,900 cubic feet per secondFeb 9, 1999: 22.33 ft, minor flooding; 39,900 cubic feet per secondMay 8, 2000: 27.88 ft, moderate flooding; 64,400 cubic feet per secondFeb 27, 2001: 14.74 ft, below flood stage; 23,900 cubic feet per secondMay 11, 2002: 26.70 ft, moderate flooding; 56,600 cubic feet per secondMay 8, 2003: 20.59 ft, minor flooding; 38,200 cubic feet per secondMar 7, 2004: 15.55 ft, below flood stage; 25,800 cubic feet per secondJan 8, 2005: 24.92 ft, minor flooding; 50,900 cubic feet per secondJan 15, 2005: 21.69 ft, minor flooding; 41,150 cubic feet per secondMar 14, 2006: 19.81 ft, minor flooding; 36,100 cubic feet per secondJan 16, 2007: 17.36 ft, action stage; 29,900 cubic feet per secondMar 22, 2008: 40.06 ft, major flooding; 123,000 cubic feet per secondApr 4, 2008: 23.21 ft, minor flooding; 45,700 cubic feet per secondApr 13, 2008: 24.67 ft, minor flooding; 50,100 cubic feet per secondSep 18, 2008: 19.52 ft, minor floodingMay 11, 2009: 24.85 ft, minor flooding; 50,700 cubic feet per secondJun 20, 2009: 18.75 ft, action stage; 33,500 cubic feet per secondNov 2, 2009: 29.12 ft, moderate flooding; 64,500 cubic feet per secondApr 29, 2011: 27.93 ft, moderate flooding; 60,600 cubic feet per secondApr 21, 2013: 24.12 ft, minor flooding; 48,400 cubic feet per secondDec 30, 2015: 46.06 ft, major flooding; 162,000 cubic feet per secondMay 3, 2017: 46.11 ft, major flooding; 161,880 cubic feet per secondFeb 27, 2018: 25.70 ft, minor flooding; 52,800 cubic feet per secondMar 31, 2018: 20.79 ft, minor flooding; 38,600 cubic feet per secondJan 14, 2020: 25.94 ft, minor floodingFeb 20, 2022: 20.76 ft, minor flooding; 38,500 cubic feet per secondApr 2, 2022: 21.83 ft, minor flooding; 41,500 cubic feet per secondMay 9, 2022: 24.89 ft, minor flooding; 50,400 cubic feet per secondMar 6, 2023: 21.82 ft, minor flooding; 41,500 cubic feet per secondMar 27, 2023: 27.19 ft, moderate flooding; 57,300 cubic feet per secondAug 6, 2023: 21.45 ft, minor flooding; 40,450 cubic feet per secondNov 8, 2024: 35.39 ft, major flooding; 88,200 cubic feet per secondApr 8, 2025: 32.45 ft, major flooding; 74,800 cubic feet per secondApr 22, 2025: 21.92 ft, minor flooding; 41,800 cubic feet per secondMar 8, 2026: 23.60 ft, minor flooding; 46,600 cubic feet per second Highest, 46.11 ft, May 3, 2017 192019401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Meramec River near Eureka 1910s: 1 1920s: 0 1930s: 0 1940s: 0 1950s: 0 1960s: 3 1970s: 6 1980s: 11 1990s: 11 2000s: 12 12 2010s: 6 2020s: 11 1910s1920s1930s1940s1950s1960s1970s1980s1990s2000s2010s2020s
  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. 32 crests measured on an earlier gauge datum are left out: 42.20 ft on Aug 22, 1915; 24.45 ft on Apr 19, 1922; 16.95 ft on Mar 17, 1923; 20.50 ft on May 30, 1924; 14.60 ft on Dec 22, 1924; 17.18 ft on Nov 10, 1925; and more.

Highest crests

The 50 highest of 71 listed crests.

Highest listed crests, Meramec River near Eureka
1May 3, 201746.11+27.11Major161,880
2Dec 30, 201546.06+27.06Major162,000
3Dec 6, 198242.89+23.89Major145,000
4Apr 14, 199440.90+21.90Major123,000
5Mar 22, 200840.06+21.06Major123,000
6Feb 1, 191639.00+20.00Major113,000
7Sep 26, 199336.72+17.72Major95,200
8May 3, 198336.60+17.60Major—
9Nov 17, 199335.60+16.60Major—
10Nov 8, 202435.39+16.39Major88,200
11Nov 22, 198534.68+15.68Major84,600
12Apr 14, 197933.43+14.43Major77,200
13Apr 8, 202532.45+13.45Major74,800
14Feb 26, 198531.72+12.72Major76,300
15May 20, 199531.18+12.18Major69,700
16Apr 30, 199630.23+11.23Moderate66,900
17Jun 21, 198529.20+10.20Moderate—
18Nov 2, 200929.12+10.12Moderate64,500
19Apr 29, 201127.93+8.93Moderate60,600
20May 8, 200027.88+8.88Moderate64,400
21Mar 27, 202327.19+8.19Moderate57,300
22Feb 13, 196626.85+7.85Moderate57,800
23Apr 2, 198526.80+7.80Moderate—
24May 11, 200226.70+7.70Moderate56,600
25Jul 30, 199826.30+7.30Moderate53,900
26Jan 14, 202025.94+6.94Minor—
27Feb 27, 201825.70+6.70Minor52,800
28May 28, 199025.65+6.65Minor48,000
29Dec 29, 198725.23+6.23Minor46,600
30Jan 8, 200524.92+5.92Minor50,900
31May 9, 202224.89+5.89Minor50,400
32May 11, 200924.85+5.85Minor50,700
33Apr 13, 200824.67+5.67Minor50,100
34Mar 30, 197724.39+5.39Minor44,200
35Apr 21, 201324.12+5.12Minor48,400
36Mar 8, 202623.60+4.60Minor46,600
37Feb 25, 197523.32+4.32Minor41,500
38Apr 4, 200823.21+4.21Minor45,700
39May 21, 198122.95+3.95Minor40,200
40Jan 1, 199122.94+3.94Minor39,100
41Apr 22, 199222.94+3.94Minor39,100
42Oct 5, 198622.85+3.85Minor39,700
43Feb 20, 198222.76+3.76Minor41,800
44Nov 4, 197222.33+3.33Minor39,000
45Feb 9, 199922.33+3.33Minor39,900
46Mar 1, 199721.95+2.95Minor40,800
47Apr 22, 202521.92+2.92Minor41,800
48Apr 2, 202221.83+2.83Minor41,500
49Mar 6, 202321.82+2.82Minor41,500
50Jan 15, 200521.69+2.69Minor41,150

The worst floods along the Meramec River

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

May 3, 2017: 46.11 ft here, major flooding

  • ArnoldMO · May 3, 2017 · 45.62 ft · Major
  • Valley ParkMO · May 3, 2017 · 43.31 ft · Major
  • FentonMO · May 3, 2017 · 41.88 ft · Major
  • SullivanMO · May 1, 2017 · 36.52 ft · Major · its highest
  • PacificMO · May 2, 2017 · 33.05 ft · Major
  • SteelvilleMO · May 1, 2017 · 28.71 ft · Major · its highest

December 30, 2015: 46.06 ft here, major flooding

  • ArnoldMO · Dec 31, 2015 · 47.26 ft · Major · its highest
  • Valley ParkMO · Dec 31, 2015 · 44.11 ft · Major · its highest
  • FentonMO · Dec 31, 2015 · 42.86 ft · Major · its highest
  • PacificMO · Dec 30, 2015 · 33.42 ft · Major · its highest
  • SullivanMO · Dec 29, 2015 · 31.48 ft · Major
  • SteelvilleMO · Dec 29, 2015 · 24.87 ft · Moderate

December 6, 1982: 42.89 ft here, major flooding

  • ArnoldMO · Dec 6, 1982 · 43.90 ft · Major
  • Valley ParkMO · Dec 6, 1982 · 39.73 ft · Major
  • PacificMO · Dec 6, 1982 · 32.71 ft · Major
  • SullivanMO · Dec 4, 1982 · 32.22 ft · Major
  • SteelvilleMO · Dec 4, 1982 · 25.60 ft · Major

Gauges on the Meramec River

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

Flood gauges on the Meramec River
SteelvilleMO12.028.71 ft, May 1, 20176
SullivanMO11.036.52 ft, May 1, 20178
PacificMO15.033.42 ft, Dec 30, 20155
Eureka this gaugeMO19.046.11 ft, May 3, 201715
Valley ParkMO18.044.11 ft, Dec 31, 201528
FentonMO23.042.86 ft, Dec 31, 20153
ArnoldMO24.047.26 ft, Dec 31, 201512

Other gauges in St. Louis County

Flood gauges in St. Louis County
Fenton23.042.86 ft, Dec 31, 20153
Valley Park18.044.11 ft, Dec 31, 201528
St. Charles25.040.11 ft, Jun 24, 18449

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

NOAA National Water Prediction Service, gauge ERKM7, 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.