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Redwater Creek (WY) at Wyoming-South Dakota State Line

Highest listed crest 12.19 ftFlood stage 12.0 ft75 crests since 1955

The Redwater Creek (WY) at Wyoming-South Dakota State Line crested above flood stage 1 time among the 75 crests the National Weather Service lists from 1955 to 2024. The highest, 12.19 ft on August 22, 1973, was minor flooding, 0.19 feet above flood stage.

The gauge

Highest listed crest
12.19 ft
August 22, 1973; 2,440 cubic feet per second
Flood stage
12.0 ft
Major flooding from 14.0 ft
Crests at major
0
1 above flood stage
Most recent flood crest
August 22, 1973
12.19 ft, minor flooding
Location
Lawrence County
Near Spearfish (12.9 mi)

Flood stages

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

Flood categories, Redwater Creek (WY) at Wyoming-South Dakota State Line
Action stage10.06Jun 5, 2015The level at which the NWS or its partners begin to take action
Flood stage (minor)12.01Aug 22, 1973Minimal or no property damage, but possibly some public threat
Moderate flood stage13.00—Some inundation of structures and roads near the stream
Major flood stage14.00—Extensive inundation of structures and roads

Every listed crest

75 crests from 1955 to 2024. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Redwater Creek (WY) at Wyoming-South Dakota State Line, 1955 to 2024 2468101214ft Flood stage 12.0 ftMajor 14.0 ft Jun 11, 1955: 3.87 ft, below flood stage; 194 cubic feet per secondJul 7, 1956: 3.70 ft, below flood stage; 123 cubic feet per secondAug 21, 1957: 4.01 ft, below flood stage; 108 cubic feet per secondJul 19, 1958: 3.85 ft, below flood stage; 186 cubic feet per secondJun 25, 1959: 2.73 ft, below flood stage; 37 cubic feet per secondMar 22, 1960: 4.18 ft, below flood stage; 273 cubic feet per secondJan 16, 1961: 2.75 ft, below flood stage; 28 cubic feet per secondJun 16, 1962: 11.95 ft, action stage; 2,340 cubic feet per secondApr 29, 1963: 4.30 ft, below flood stage; 267 cubic feet per secondJun 23, 1964: 7.04 ft, below flood stage; 798 cubic feet per secondMay 15, 1965: 8.83 ft, below flood stage; 1,230 cubic feet per secondJul 28, 1966: 3.96 ft, below flood stage; 217 cubic feet per secondMay 10, 1967: 3.40 ft, below flood stage; 124 cubic feet per secondJul 26, 1968: 3.05 ft, below flood stage; 94 cubic feet per secondMay 4, 1969: 4.46 ft, below flood stage; 300 cubic feet per secondJun 12, 1970: 7.61 ft, below flood stage; 948 cubic feet per secondFeb 13, 1971: 4.80 ft, below flood stage; 391 cubic feet per secondJun 20, 1972: 4.07 ft, below flood stage; 251 cubic feet per secondAug 22, 1973: 12.19 ft, minor flooding; 2,440 cubic feet per secondJul 2, 1974: 3.96 ft, below flood stage; 226 cubic feet per secondMay 7, 1975: 3.36 ft, below flood stage; 127 cubic feet per secondJun 15, 1976: 9.56 ft, below flood stage; 1,500 cubic feet per secondAug 15, 1977: 3.56 ft, below flood stage; 172 cubic feet per secondMay 11, 1978: 4.80 ft, below flood stage; 360 cubic feet per secondMar 7, 1979: 3.04 ft, below flood stage; 93 cubic feet per secondJun 14, 1980: 6.65 ft, below flood stage; 738 cubic feet per secondJul 16, 1981: 3.00 ft, below flood stage; 72 cubic feet per secondMay 16, 1982: 6.37 ft, below flood stageMay 7, 1983: 3.83 ft, below flood stage; 168 cubic feet per secondJun 16, 1984: 10.89 ft, action stage; 1,960 cubic feet per secondOct 4, 1984: 3.07 ft, below flood stage; 78 cubic feet per secondJun 30, 1986: 5.71 ft, below flood stage; 465 cubic feet per secondMar 7, 1987: 5.42 ft, below flood stage; 400 cubic feet per secondMay 9, 1988: 3.25 ft, below flood stage; 75 cubic feet per secondApr 27, 1989: 2.68 ft, below flood stage; 40 cubic feet per secondOct 29, 1989: 2.98 ft, below flood stage; 34 cubic feet per secondNov 8, 1990: 2.76 ft, below flood stage; 49 cubic feet per secondJul 28, 1992: 3.14 ft, below flood stage; 32 cubic feet per secondJun 9, 1993: 4.87 ft, below flood stage; 236 cubic feet per secondMay 6, 1994: 3.66 ft, below flood stage; 82 cubic feet per secondMay 9, 1995: 10.62 ft, action stage; 1,640 cubic feet per secondMar 13, 1996: 6.74 ft, below flood stage; 622 cubic feet per secondMar 22, 1997: 11.58 ft, action stage; 1,840 cubic feet per secondApr 6, 1997: 3.88 ft, below flood stage; 119 cubic feet per secondJun 19, 1998: 4.39 ft, below flood stage; 166 cubic feet per secondJul 20, 1999: 4.95 ft, below flood stage; 200 cubic feet per secondApr 26, 2000: 3.39 ft, below flood stage; 69 cubic feet per secondNov 1, 2001: 3.93 ft, below flood stage; 548 cubic feet per secondSep 18, 2002: 3.39 ft, below flood stage; 255 cubic feet per secondMar 15, 2003: 3.64 ft, below flood stage; 368 cubic feet per secondFeb 19, 2004: 3.31 ft, below flood stage; 179 cubic feet per secondMay 13, 2005: 3.48 ft, below flood stage; 272 cubic feet per secondMay 2, 2006: 3.89 ft, below flood stage; 486 cubic feet per secondJun 2, 2007: 6.91 ft, below flood stage; 2,250 cubic feet per secondJun 6, 2008: 9.16 ft, below flood stage; 5,440 cubic feet per secondApr 24, 2009: 4.54 ft, below flood stage; 207 cubic feet per secondMay 11, 2010: 5.81 ft, below flood stage; 356 cubic feet per secondMay 22, 2011: 8.36 ft, below flood stage; 800 cubic feet per secondMar 6, 2012: 3.54 ft, below flood stage; 118 cubic feet per secondJun 1, 2013: 11.26 ft, action stage; 1,340 cubic feet per secondJun 27, 2014: 8.55 ft, below flood stage; 818 cubic feet per secondJun 5, 2015: 11.86 ft, action stage; 1,470 cubic feet per secondApr 28, 2016: 3.52 ft, below flood stage; 68 cubic feet per secondMay 3, 2017: 3.62 ft, below flood stage; 51 cubic feet per secondMay 22, 2017: 3.65 ft, below flood stageJul 18, 2018: 9.81 ft, below flood stage; 1,040 cubic feet per secondMay 29, 2019: 6.37 ft, below flood stage; 445 cubic feet per secondMay 1, 2020: 4.68 ft, below flood stage; 221 cubic feet per secondOct 19, 2020: 3.27 ft, below flood stage; 63 cubic feet per secondFeb 15, 2021: 4.81 ft, below flood stageJan 7, 2022: 4.89 ft, below flood stageJun 1, 2022: 4.60 ft, below flood stage; 159 cubic feet per secondMay 27, 2023: 6.08 ft, below flood stage; 341 cubic feet per secondJan 14, 2024: 5.30 ft, below flood stageMay 16, 2024: 4.97 ft, below flood stage; 135 cubic feet per second Highest, 12.19 ft, Aug 22, 1973 1960197019801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Redwater Creek (WY) at Wyoming-South Dakota State Line 1950s: 0 1960s: 0 1970s: 1 1 1980s: 0 1990s: 0 2000s: 0 2010s: 0 2020s: 0 1950s1960s1970s1980s1990s2000s2010s2020s
  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. 5 crests measured on an earlier gauge datum are left out: 6.20 ft on May 26, 1929; 5.30 ft on Jun 9, 1930; 4.94 ft on Jul 13, 1931; 7.72 ft on Jul 13, 1936; 11.50 ft on Jul 17, 1937.

Highest crests

The 50 highest of 75 listed crests.

Highest listed crests, Redwater Creek (WY) at Wyoming-South Dakota State Line
1Aug 22, 197312.19+0.19Minor2,440
2Jun 16, 196211.95−0.05Action2,340
3Jun 5, 201511.86−0.14Action1,470
4Mar 22, 199711.58−0.42Action1,840
5Jun 1, 201311.26−0.74Action1,340
6Jun 16, 198410.89−1.11Action1,960
7May 9, 199510.62−1.38Action1,640
8Jul 18, 20189.81−2.19Below flood stage1,040
9Jun 15, 19769.56−2.44Below flood stage1,500
10Jun 6, 20089.16−2.84Below flood stage5,440
11May 15, 19658.83−3.17Below flood stage1,230
12Jun 27, 20148.55−3.45Below flood stage818
13May 22, 20118.36−3.64Below flood stage800
14Jun 12, 19707.61−4.39Below flood stage948
15Jun 23, 19647.04−4.96Below flood stage798
16Jun 2, 20076.91−5.09Below flood stage2,250
17Mar 13, 19966.74−5.26Below flood stage622
18Jun 14, 19806.65−5.35Below flood stage738
19May 16, 19826.37−5.63Below flood stage—
20May 29, 20196.37−5.63Below flood stage445
21May 27, 20236.08−5.92Below flood stage341
22May 11, 20105.81−6.19Below flood stage356
23Jun 30, 19865.71−6.29Below flood stage465
24Mar 7, 19875.42−6.58Below flood stage400
25Jan 14, 20245.30−6.70Below flood stage—
26May 16, 20244.97−7.03Below flood stage135
27Jul 20, 19994.95−7.05Below flood stage200
28Jan 7, 20224.89−7.11Below flood stage—
29Jun 9, 19934.87−7.13Below flood stage236
30Feb 15, 20214.81−7.19Below flood stage—
31Feb 13, 19714.80−7.20Below flood stage391
32May 11, 19784.80−7.20Below flood stage360
33May 1, 20204.68−7.32Below flood stage221
34Jun 1, 20224.60−7.40Below flood stage159
35Apr 24, 20094.54−7.46Below flood stage207
36May 4, 19694.46−7.54Below flood stage300
37Jun 19, 19984.39−7.61Below flood stage166
38Apr 29, 19634.30−7.70Below flood stage267
39Mar 22, 19604.18−7.82Below flood stage273
40Jun 20, 19724.07−7.93Below flood stage251
41Aug 21, 19574.01−7.99Below flood stage108
42Jul 28, 19663.96−8.04Below flood stage217
43Jul 2, 19743.96−8.04Below flood stage226
44Nov 1, 20013.93−8.07Below flood stage548
45May 2, 20063.89−8.11Below flood stage486
46Apr 6, 19973.88−8.12Below flood stage119
47Jun 11, 19553.87−8.13Below flood stage194
48Jul 19, 19583.85−8.15Below flood stage186
49May 7, 19833.83−8.17Below flood stage168
50Jul 7, 19563.70−8.30Below flood stage123

Other gauges in Lawrence County

Flood gauges in Lawrence County
Bear Butte Creek in Boulder Canyon6.57.86 ft, Jul 4, 20190
Galena7.58.34 ft, May 8, 19950
Roubaix11.012.32 ft, May 8, 19950
Lead7.523.40 ft, May 2, 199710
Spearfish7.07.42 ft, May 8, 19950
Spearfish10.010.54 ft, Jun 15, 19760

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

NOAA National Water Prediction Service, gauge RDWS2, 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.