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Cheyenne River at Edgemont

Highest listed crest 14.00 ftFlood stage 9.0 ft88 crests since 1905

The Cheyenne River at Edgemont crested at major flood stage 3 times among the 88 crests the National Weather Service lists from 1905 to 2023. The highest, 14.00 ft on May 1, 1922, was major flooding, 5.00 feet above flood stage.

The gauge

Highest listed crest
14.00 ft
May 1, 1922
Flood stage
9.0 ft
Major flooding from 13.0 ft
Crests at major
3
31st of 155 gauges in South Dakota
Most recent flood crest
March 22, 2019
9.41 ft, minor flooding
Location
Fall River 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, Cheyenne River at Edgemont
Action stage8.04Jun 1, 2018The level at which the NWS or its partners begin to take action
Flood stage (minor)9.010Mar 22, 2019Minimal or no property damage, but possibly some public threat
Moderate flood stage11.01Jun 17, 1962Some inundation of structures and roads near the stream
Major flood stage13.03May 20, 1978Extensive inundation of structures and roads

Every listed crest

88 crests from 1905 to 2023. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Cheyenne River at Edgemont, 1905 to 2023 2468101214ft Flood stage 9.0 ftMajor 13.0 ft Jul 30, 1905: 10.50 ft, minor flooding; 13,000 cubic feet per secondMay 12, 1920: 13.00 ft, major floodingMay 1, 1922: 14.00 ft, major floodingJun 3, 1929: 9.86 ft, minor flooding; 10,500 cubic feet per secondAug 18, 1930: 7.00 ft, below flood stage; 4,090 cubic feet per secondOct 4, 1930: 6.80 ft, below flood stage; 3,690 cubic feet per secondJun 18, 1932: 7.70 ft, below flood stage; 5,560 cubic feet per secondJun 22, 1947: 6.70 ft, below flood stage; 2,800 cubic feet per secondJun 18, 1948: 7.15 ft, below flood stage; 3,490 cubic feet per secondJun 7, 1949: 5.82 ft, below flood stage; 1,510 cubic feet per secondJun 19, 1950: 6.00 ft, below flood stage; 1,820 cubic feet per secondJul 3, 1951: 7.44 ft, below flood stage; 4,000 cubic feet per secondJun 28, 1952: 9.29 ft, minor flooding; 8,940 cubic feet per secondMay 31, 1953: 5.75 ft, below flood stage; 2,050 cubic feet per secondMay 22, 1954: 7.57 ft, below flood stage; 5,150 cubic feet per secondAug 8, 1955: 8.02 ft, action stage; 5,660 cubic feet per secondJun 19, 1956: 6.12 ft, below flood stage; 2,820 cubic feet per secondMay 25, 1957: 9.05 ft, minor flooding; 7,980 cubic feet per secondJul 20, 1958: 7.71 ft, below flood stage; 5,160 cubic feet per secondJun 24, 1959: 5.47 ft, below flood stage; 1,450 cubic feet per secondJun 10, 1960: 5.35 ft, below flood stage; 1,320 cubic feet per secondJul 9, 1961: 5.50 ft, below flood stage; 1,260 cubic feet per secondJun 17, 1962: 11.46 ft, moderate flooding; 13,500 cubic feet per secondJun 7, 1963: 5.83 ft, below flood stage; 2,780 cubic feet per secondJun 12, 1964: 5.61 ft, below flood stage; 2,480 cubic feet per secondJun 17, 1965: 9.30 ft, minor flooding; 8,800 cubic feet per secondJul 16, 1966: 6.02 ft, below flood stage; 3,130 cubic feet per secondJun 24, 1967: 6.86 ft, below flood stage; 4,340 cubic feet per secondJun 10, 1968: 6.24 ft, below flood stage; 3,040 cubic feet per secondJul 20, 1969: 8.19 ft, action stage; 6,180 cubic feet per secondMay 17, 1970: 3.98 ft, below flood stage; 502 cubic feet per secondMay 25, 1971: 10.57 ft, minor flooding; 13,800 cubic feet per secondJun 17, 1972: 3.70 ft, below flood stage; 750 cubic feet per secondSep 10, 1973: 7.31 ft, below flood stage; 4,920 cubic feet per secondMar 6, 1974: 3.50 ft, below flood stage; 394 cubic feet per secondJun 29, 1975: 4.27 ft, below flood stage; 799 cubic feet per secondJun 18, 1976: 5.27 ft, below flood stage; 1,830 cubic feet per secondJul 10, 1977: 5.82 ft, below flood stage; 2,570 cubic feet per secondMay 20, 1978: 13.65 ft, major flooding; 28,000 cubic feet per secondAug 11, 1979: 5.95 ft, below flood stage; 3,960 cubic feet per secondAug 17, 1980: 4.64 ft, below flood stage; 2,500 cubic feet per secondJul 15, 1981: 5.04 ft, below flood stage; 3,010 cubic feet per secondJun 3, 1982: 6.72 ft, below flood stage; 4,160 cubic feet per secondJul 19, 1983: 5.14 ft, below flood stage; 1,760 cubic feet per secondMay 3, 1984: 4.94 ft, below flood stage; 1,460 cubic feet per secondMar 19, 1985: 3.01 ft, below flood stage; 496 cubic feet per secondJun 11, 1986: 6.43 ft, below flood stage; 2,760 cubic feet per secondMar 8, 1987: 6.24 ft, below flood stage; 2,550 cubic feet per secondAug 6, 1988: 2.53 ft, below flood stage; 324 cubic feet per secondSep 22, 1989: 5.16 ft, below flood stage; 1,610 cubic feet per secondJul 23, 1990: 4.19 ft, below flood stage; 1,060 cubic feet per secondJun 2, 1991: 9.60 ft, minor flooding; 8,700 cubic feet per secondJul 29, 1992: 2.58 ft, below flood stage; 341 cubic feet per secondAug 20, 1993: 7.56 ft, below flood stage; 4,350 cubic feet per secondMar 3, 1994: 6.25 ft, below flood stage; 2,000 cubic feet per secondMay 10, 1995: 5.87 ft, below flood stage; 2,310 cubic feet per secondMay 29, 1996: 5.68 ft, below flood stage; 1,550 cubic feet per secondFeb 19, 1997: 4.87 ft, below flood stage; 800 cubic feet per secondJun 19, 1998: 5.46 ft, below flood stage; 1,920 cubic feet per secondJun 13, 1999: 7.60 ft, below flood stage; 3,110 cubic feet per secondApr 20, 2000: 5.64 ft, below flood stage; 1,450 cubic feet per secondJun 7, 2001: 4.88 ft, below flood stage; 1,070 cubic feet per secondAug 31, 2002: 3.10 ft, below flood stage; 375 cubic feet per secondMar 19, 2003: 5.83 ft, below flood stage; 1,550 cubic feet per secondFeb 25, 2004: 3.86 ft, below flood stage; 100 cubic feet per secondJun 13, 2005: 6.88 ft, below flood stage; 1,460 cubic feet per secondAug 7, 2006: 5.14 ft, below flood stage; 868 cubic feet per secondMay 7, 2007: 5.38 ft, below flood stage; 1,110 cubic feet per secondMay 25, 2008: 9.60 ft, minor flooding; 5,120 cubic feet per secondJul 3, 2009: 5.84 ft, below flood stage; 1,140 cubic feet per secondMay 22, 2010: 6.36 ft, below flood stage; 1,410 cubic feet per secondMar 12, 2011: 8.74 ft, action stageMar 13, 2012: 3.24 ft, below flood stageMar 13, 2013: 3.25 ft, below flood stage; 397 cubic feet per secondJul 9, 2013: 5.26 ft, below flood stage; 963 cubic feet per secondOct 12, 2013: 7.16 ft, below flood stage; 1,870 cubic feet per secondJun 5, 2015: 9.54 ft, minor flooding; 6,250 cubic feet per secondFeb 25, 2016: 4.51 ft, below flood stageJul 31, 2016: 2.46 ft, below flood stage; 105 cubic feet per secondJun 15, 2017: 3.72 ft, below flood stage; 502 cubic feet per secondJun 1, 2018: 8.32 ft, action stage; 3,230 cubic feet per secondMar 22, 2019: 9.41 ft, minor flooding; 4,980 cubic feet per secondMar 3, 2020: 6.68 ft, below flood stageMar 8, 2020: 4.51 ft, below flood stage; 721 cubic feet per secondMay 24, 2021: 4.83 ft, below flood stage; 844 cubic feet per secondJun 8, 2022: 2.28 ft, below flood stage; 188 cubic feet per secondJul 9, 2023: 4.86 ft, below flood stage; 907 cubic feet per secondOct 15, 2023: 4.79 ft, below flood stage; 879 cubic feet per second Highest, 14.00 ft, May 1, 1922 192019401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Cheyenne River at Edgemont 1900s: 1 1910s: 0 1920s: 3 3 1930s: 0 1940s: 0 1950s: 2 1960s: 2 1970s: 2 1980s: 0 1990s: 1 2000s: 1 2010s: 2 2020s: 0 1900s1910s1920s1930s1940s1950s1960s1970s1980s1990s2000s2010s2020s
  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 88 listed crests.

Highest listed crests, Cheyenne River at Edgemont
1May 1, 192214.00+5.00Major—
2May 20, 197813.65+4.65Major28,000
3May 12, 192013.00+4.00Major—
4Jun 17, 196211.46+2.46Moderate13,500
5May 25, 197110.57+1.57Minor13,800
6Jul 30, 190510.50+1.50Minor13,000
7Jun 3, 19299.86+0.86Minor10,500
8Jun 2, 19919.60+0.60Minor8,700
9May 25, 20089.60+0.60Minor5,120
10Jun 5, 20159.54+0.54Minor6,250
11Mar 22, 20199.41+0.41Minor4,980
12Jun 17, 19659.30+0.30Minor8,800
13Jun 28, 19529.29+0.29Minor8,940
14May 25, 19579.05+0.05Minor7,980
15Mar 12, 20118.74−0.26Action—
16Jun 1, 20188.32−0.68Action3,230
17Jul 20, 19698.19−0.81Action6,180
18Aug 8, 19558.02−0.98Action5,660
19Jul 20, 19587.71−1.29Below flood stage5,160
20Jun 18, 19327.70−1.30Below flood stage5,560
21Jun 13, 19997.60−1.40Below flood stage3,110
22May 22, 19547.57−1.43Below flood stage5,150
23Aug 20, 19937.56−1.44Below flood stage4,350
24Jul 3, 19517.44−1.56Below flood stage4,000
25Sep 10, 19737.31−1.69Below flood stage4,920
26Oct 12, 20137.16−1.84Below flood stage1,870
27Jun 18, 19487.15−1.85Below flood stage3,490
28Aug 18, 19307.00−2.00Below flood stage4,090
29Jun 13, 20056.88−2.12Below flood stage1,460
30Jun 24, 19676.86−2.14Below flood stage4,340
31Oct 4, 19306.80−2.20Below flood stage3,690
32Jun 3, 19826.72−2.28Below flood stage4,160
33Jun 22, 19476.70−2.30Below flood stage2,800
34Mar 3, 20206.68−2.32Below flood stage—
35Jun 11, 19866.43−2.57Below flood stage2,760
36May 22, 20106.36−2.64Below flood stage1,410
37Mar 3, 19946.25−2.75Below flood stage2,000
38Jun 10, 19686.24−2.76Below flood stage3,040
39Mar 8, 19876.24−2.76Below flood stage2,550
40Jun 19, 19566.12−2.88Below flood stage2,820
41Jul 16, 19666.02−2.98Below flood stage3,130
42Jun 19, 19506.00−3.00Below flood stage1,820
43Aug 11, 19795.95−3.05Below flood stage3,960
44May 10, 19955.87−3.13Below flood stage2,310
45Jul 3, 20095.84−3.16Below flood stage1,140
46Jun 7, 19635.83−3.17Below flood stage2,780
47Mar 19, 20035.83−3.17Below flood stage1,550
48Jun 7, 19495.82−3.18Below flood stage1,510
49Jul 10, 19775.82−3.18Below flood stage2,570
50May 31, 19535.75−3.25Below flood stage2,050

The worst floods along the Cheyenne River

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

May 20, 1978: 13.65 ft here, major flooding

  • Buffalo GapSD · May 21, 1978 · 13.15 ft · Minor · its highest

May 12, 1920: 13.00 ft here, major flooding

  • WastaSD · May 15, 1920 · 18.00 ft · Major · its highest

Gauges on the Cheyenne River

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

Flood gauges on the Cheyenne River
Edgemont this gaugeSD9.014.00 ft, May 1, 19223
Buffalo GapSD13.013.15 ft, May 21, 19780
ScenicSD18.019.31 ft, Mar 11, 20110
WastaSD13.018.00 ft, May 15, 19202
PlainviewSD17.022.99 ft, May 23, 20193
Eagle ButteSD21.026.82 ft, Jun 7, 20081

Other gauges in Fall River County

Flood gauges in Fall River County
Buffalo Gap7.58.38 ft, Jul 14, 19660
Hot Springs45.048.39 ft, Aug 9, 20140
Hot Springs4.511.12 ft, Jun 20, 19472
Edgemont16.021.19 ft, Jun 6, 20150
Oelrichs16.016.31 ft, May 25, 20100

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

NOAA National Water Prediction Service, gauge EDGS2, 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.