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Grand River (SD) near Little Eagle

Highest listed crest 21.27 ftFlood stage 15.0 ft49 crests since 1971

The Grand River (SD) near Little Eagle crested at major flood stage 2 times among the 49 crests the National Weather Service lists from 1971 to 2025. The highest, 21.27 ft on March 17, 2011, was major flooding, 6.27 feet above flood stage.

The gauge

Highest listed crest
21.27 ft
March 17, 2011; 16,000 cubic feet per second
Flood stage
15.0 ft
Major flooding from 21.0 ft
Crests at major
2
42nd of 155 gauges in South Dakota
Most recent flood crest
May 21, 2025
15.47 ft, minor flooding
Location
Corson County
South Dakota

Flood stages

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

Flood categories, Grand River (SD) near Little Eagle
Action stage13.06Jul 17, 2001The level at which the NWS or its partners begin to take action
Flood stage (minor)15.04May 21, 2025Minimal or no property damage, but possibly some public threat
Moderate flood stage17.05Jun 10, 2021Some inundation of structures and roads near the stream
Major flood stage21.02Mar 17, 2011Extensive inundation of structures and roads

Every listed crest

49 crests from 1971 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Grand River (SD) near Little Eagle, 1971 to 2025 0510152025ft Flood stage 15.0 ftMajor 21.0 ft Mar 14, 1971: 14.93 ft, action stage; 7,370 cubic feet per secondMar 12, 1972: 21.01 ft, major flooding; 15,000 cubic feet per secondJan 19, 1973: 13.91 ft, action stageApr 21, 1974: 10.65 ft, below flood stage; 5,990 cubic feet per secondMay 12, 1975: 11.41 ft, below flood stage; 7,290 cubic feet per secondJun 25, 1976: 6.22 ft, below flood stage; 1,280 cubic feet per secondSep 25, 1977: 7.40 ft, below flood stage; 2,190 cubic feet per secondMar 23, 1978: 18.41 ft, moderate flooding; 19,000 cubic feet per secondMar 26, 1979: 9.93 ft, below flood stageJan 25, 1980: 8.73 ft, below flood stageFeb 1, 1981: 9.32 ft, below flood stageMay 22, 1982: 12.15 ft, below flood stage; 9,740 cubic feet per secondMay 13, 1983: 8.96 ft, below flood stage; 5,980 cubic feet per secondMar 22, 1984: 7.80 ft, below flood stage; 3,490 cubic feet per secondMar 16, 1985: 10.67 ft, below flood stage; 5,500 cubic feet per secondMay 10, 1986: 13.60 ft, action stage; 12,100 cubic feet per secondMar 23, 1987: 19.16 ft, moderate flooding; 31,000 cubic feet per secondJun 30, 1988: 7.47 ft, below flood stage; 4,160 cubic feet per secondMar 25, 1989: 9.87 ft, below flood stage; 6,930 cubic feet per secondAug 20, 1990: 3.18 ft, below flood stage; 715 cubic feet per secondMay 24, 1991: 5.85 ft, below flood stage; 2,520 cubic feet per secondJul 2, 1992: 5.12 ft, below flood stage; 1,600 cubic feet per secondMar 7, 1993: 10.72 ft, below flood stage; 8,110 cubic feet per secondMar 6, 1994: 14.23 ft, action stage; 4,000 cubic feet per secondMar 11, 1994: 9.95 ft, below flood stage; 4,000 cubic feet per secondMar 14, 1995: 13.84 ft, action stage; 12,800 cubic feet per secondMar 12, 1996: 17.25 ft, moderate flooding; 6,000 cubic feet per secondMar 27, 1997: 16.96 ft, minor flooding; 20,900 cubic feet per secondJul 12, 1998: 9.53 ft, below flood stage; 2,570 cubic feet per secondMay 11, 1999: 12.25 ft, below flood stage; 5,040 cubic feet per secondMay 9, 2000: 9.56 ft, below flood stage; 2,460 cubic feet per secondJul 17, 2001: 14.64 ft, action stage; 7,150 cubic feet per secondOct 1, 2001: 4.96 ft, below flood stage; 155 cubic feet per secondMar 21, 2003: 9.70 ft, below flood stage; 2,000 cubic feet per secondMar 11, 2004: 11.08 ft, below flood stage; 3,250 cubic feet per secondJun 9, 2005: 12.72 ft, below flood stage; 4,600 cubic feet per secondAug 11, 2006: 6.82 ft, below flood stage; 591 cubic feet per secondJun 8, 2007: 12.31 ft, below flood stage; 3,890 cubic feet per secondMar 24, 2010: 15.76 ft, minor flooding; 9,210 cubic feet per secondMar 17, 2011: 21.27 ft, major flooding; 16,000 cubic feet per secondNov 17, 2011: 6.23 ft, below flood stage; 650 cubic feet per secondMay 31, 2013: 15.83 ft, minor flooding; 9,720 cubic feet per secondAug 25, 2014: 20.76 ft, moderate flooding; 17,400 cubic feet per secondMay 17, 2015: 12.44 ft, below flood stage; 5,150 cubic feet per secondApr 20, 2016: 11.65 ft, below flood stage; 4,450 cubic feet per secondFeb 23, 2017: 9.28 ft, below flood stage; 1,900 cubic feet per secondJun 10, 2021: 17.94 ft, moderate flooding; 12,000 cubic feet per secondApr 11, 2023: 12.52 ft, below flood stage; 5,680 cubic feet per secondMay 21, 2025: 15.47 ft, minor flooding; 9,090 cubic feet per second Highest, 21.27 ft, Mar 17, 2011 19801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Grand River (SD) near Little Eagle 1970s: 2 1980s: 1 1990s: 2 2000s: 0 2010s: 4 4 2020s: 2 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.
  3. 18 crests measured on an earlier gauge datum are left out: 19.00 ft on Mar 12, 1929; 20.50 ft on Mar 14, 1930; 19.50 ft on Apr 9, 1944; 0.00 ft on Mar 12, 1959; 0.00 ft on Mar 22, 1960; 0.00 ft on Jun 14, 1961; and more.

Highest crests

Highest listed crests, Grand River (SD) near Little Eagle
1Mar 17, 201121.27+6.27Major16,000
2Mar 12, 197221.01+6.01Major15,000
3Aug 25, 201420.76+5.76Moderate17,400
4Mar 23, 198719.16+4.16Moderate31,000
5Mar 23, 197818.41+3.41Moderate19,000
6Jun 10, 202117.94+2.94Moderate12,000
7Mar 12, 199617.25+2.25Moderate6,000
8Mar 27, 199716.96+1.96Minor20,900
9May 31, 201315.83+0.83Minor9,720
10Mar 24, 201015.76+0.76Minor9,210
11May 21, 202515.47+0.47Minor9,090
12Mar 14, 197114.93−0.07Action7,370
13Jul 17, 200114.64−0.36Action7,150
14Mar 6, 199414.23−0.77Action4,000
15Jan 19, 197313.91−1.09Action—
16Mar 14, 199513.84−1.16Action12,800
17May 10, 198613.60−1.40Action12,100
18Jun 9, 200512.72−2.28Below flood stage4,600
19Apr 11, 202312.52−2.48Below flood stage5,680
20May 17, 201512.44−2.56Below flood stage5,150
21Jun 8, 200712.31−2.69Below flood stage3,890
22May 11, 199912.25−2.75Below flood stage5,040
23May 22, 198212.15−2.85Below flood stage9,740
24Apr 20, 201611.65−3.35Below flood stage4,450
25May 12, 197511.41−3.59Below flood stage7,290
26Mar 11, 200411.08−3.92Below flood stage3,250
27Mar 7, 199310.72−4.28Below flood stage8,110
28Mar 16, 198510.67−4.33Below flood stage5,500
29Apr 21, 197410.65−4.35Below flood stage5,990
30Mar 11, 19949.95−5.05Below flood stage4,000
31Mar 26, 19799.93−5.07Below flood stage—
32Mar 25, 19899.87−5.13Below flood stage6,930
33Mar 21, 20039.70−5.30Below flood stage2,000
34May 9, 20009.56−5.44Below flood stage2,460
35Jul 12, 19989.53−5.47Below flood stage2,570
36Feb 1, 19819.32−5.68Below flood stage—
37Feb 23, 20179.28−5.72Below flood stage1,900
38May 13, 19838.96−6.04Below flood stage5,980
39Jan 25, 19808.73−6.27Below flood stage—
40Mar 22, 19847.80−7.20Below flood stage3,490
41Jun 30, 19887.47−7.53Below flood stage4,160
42Sep 25, 19777.40−7.60Below flood stage2,190
43Aug 11, 20066.82−8.18Below flood stage591
44Nov 17, 20116.23−8.77Below flood stage650
45Jun 25, 19766.22−8.78Below flood stage1,280
46May 24, 19915.85−9.15Below flood stage2,520
47Jul 2, 19925.12−9.88Below flood stage1,600
48Oct 1, 20014.96−10.04Below flood stage155
49Aug 20, 19903.18−11.82Below flood stage715

Other gauges in Corson County

Flood gauges in Corson County
Wakpala10.019.83 ft, Mar 27, 19977

Corson County: every hazard · River floods across the country · South Dakota

NOAA National Water Prediction Service, gauge LIES2, 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.