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St Joe River at Calder

Highest listed crest 18.20 ftFlood stage 13.0 ft100 crests since 1921

The St Joe River at Calder crested at major flood stage 4 times among the 100 crests the National Weather Service lists from 1921 to 2024. The highest, 18.20 ft on April 18, 1938, was major flooding, 5.20 feet above flood stage.

The gauge

Highest listed crest
18.20 ft
April 18, 1938; 46,000 cubic feet per second
Flood stage
13.0 ft
Major flooding from 16.0 ft
Crests at major
4
5th of 78 gauges in Idaho
Most recent flood crest
March 19, 2017
13.46 ft, minor flooding
Location
Shoshone County
Idaho

Flood stages

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

Flood categories, St Joe River at Calder
Action stage12.024May 3, 2023The level at which the NWS or its partners begin to take action
Flood stage (minor)13.028Mar 19, 2017Minimal or no property damage, but possibly some public threat
Moderate flood stage15.06Feb 9, 1996Some inundation of structures and roads near the stream
Major flood stage16.04Feb 10, 2017Extensive inundation of structures and roads

Every listed crest

100 crests from 1921 to 2024. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the St Joe River at Calder, 1921 to 2024 8101214161820ft Flood stage 13.0 ftMajor 16.0 ft May 8, 1921: 12.52 ft, action stage; 17,400 cubic feet per secondMay 18, 1922: 12.77 ft, action stage; 17,600 cubic feet per secondMay 9, 1923: 11.60 ft, below flood stage; 13,600 cubic feet per secondMay 13, 1924: 11.46 ft, below flood stage; 13,100 cubic feet per secondFeb 4, 1925: 15.20 ft, moderate floodingApr 19, 1926: 10.97 ft, below flood stage; 11,500 cubic feet per secondMay 6, 1927: 12.95 ft, action stage; 18,000 cubic feet per secondDec 20, 1927: 12.97 ft, action stageMay 8, 1928: 12.47 ft, action stage; 16,600 cubic feet per secondMay 22, 1929: 10.20 ft, below flood stage; 9,360 cubic feet per secondApr 15, 1930: 9.83 ft, below flood stage; 8,510 cubic feet per secondMay 3, 1931: 10.00 ft, below flood stage; 8,790 cubic feet per secondMay 14, 1932: 12.48 ft, action stage; 17,400 cubic feet per secondDec 23, 1933: 17.50 ft, major flooding; 53,000 cubic feet per secondMar 29, 1934: 13.43 ft, minor flooding; 20,200 cubic feet per secondMay 23, 1935: 11.90 ft, below flood stage; 13,400 cubic feet per secondApr 12, 1936: 13.65 ft, minor flooding; 20,000 cubic feet per secondMay 4, 1937: 11.68 ft, below flood stage; 12,700 cubic feet per secondApr 18, 1938: 18.20 ft, major flooding; 46,000 cubic feet per secondApr 30, 1939: 11.90 ft, below flood stage; 13,800 cubic feet per secondMay 11, 1940: 10.21 ft, below flood stage; 8,140 cubic feet per secondMay 18, 1941: 8.86 ft, below flood stage; 5,280 cubic feet per secondDec 3, 1941: 10.99 ft, below flood stage; 10,400 cubic feet per secondApr 16, 1943: 12.33 ft, action stage; 14,800 cubic feet per secondMay 16, 1944: 9.04 ft, below flood stage; 5,470 cubic feet per secondMay 5, 1945: 12.53 ft, action stage; 15,500 cubic feet per secondApr 26, 1946: 12.40 ft, action stage; 15,200 cubic feet per secondDec 15, 1946: 13.98 ft, minor flooding; 23,600 cubic feet per secondMay 28, 1948: 14.04 ft, minor flooding; 23,700 cubic feet per secondMay 13, 1949: 13.38 ft, minor flooding; 19,200 cubic feet per secondMay 14, 1950: 13.34 ft, minor flooding; 18,400 cubic feet per secondFeb 11, 1951: 13.07 ft, minor flooding; 17,200 cubic feet per secondApr 27, 1952: 12.83 ft, action stage; 16,200 cubic feet per secondApr 25, 1953: 12.12 ft, action stage; 13,600 cubic feet per secondMay 19, 1954: 13.60 ft, minor flooding; 20,400 cubic feet per secondMay 21, 1955: 13.30 ft, minor flooding; 18,200 cubic feet per secondMay 21, 1956: 13.66 ft, minor flooding; 20,600 cubic feet per secondMay 20, 1957: 12.73 ft, action stage; 16,700 cubic feet per secondMay 12, 1958: 12.18 ft, action stage; 14,000 cubic feet per secondMay 1, 1959: 12.45 ft, action stage; 15,200 cubic feet per secondApr 9, 1960: 11.95 ft, below flood stage; 13,500 cubic feet per secondMay 27, 1961: 12.57 ft, action stage; 15,500 cubic feet per secondApr 7, 1962: 12.77 ft, action stage; 16,600 cubic feet per secondFeb 5, 1963: 9.37 ft, below flood stage; 7,200 cubic feet per secondMay 21, 1964: 13.18 ft, minor flooding; 19,100 cubic feet per secondDec 23, 1964: 15.04 ft, moderate flooding; 30,400 cubic feet per secondMay 6, 1966: 12.23 ft, action stage; 14,400 cubic feet per secondMay 23, 1967: 13.19 ft, minor flooding; 18,200 cubic feet per secondJan 6, 1969: 15.21 ft, moderate floodingMay 27, 1970: 12.10 ft, action stage; 14,700 cubic feet per secondMay 13, 1971: 13.49 ft, minor flooding; 23,000 cubic feet per secondJun 1, 1972: 13.53 ft, minor flooding; 21,600 cubic feet per secondJan 16, 1974: 15.87 ft, moderate flooding; 33,000 cubic feet per secondDec 2, 1975: 16.04 ft, major floodingMay 11, 1976: 13.84 ft, minor flooding; 21,600 cubic feet per secondMay 2, 1977: 9.27 ft, below flood stage; 6,730 cubic feet per secondDec 2, 1977: 13.15 ft, minor flooding; 18,600 cubic feet per secondMay 15, 1979: 13.72 ft, minor flooding; 21,000 cubic feet per secondDec 26, 1980: 14.17 ft, minor flooding; 24,600 cubic feet per secondFeb 21, 1982: 14.10 ft, minor flooding; 23,800 cubic feet per secondMay 30, 1983: 11.58 ft, below flood stage; 12,700 cubic feet per secondJan 15, 1984: 15.40 ft, moderate floodingMay 3, 1985: 11.74 ft, below flood stage; 14,300 cubic feet per secondFeb 24, 1986: 11.86 ft, below flood stage; 14,800 cubic feet per secondMay 1, 1987: 11.44 ft, below flood stage; 13,300 cubic feet per secondApr 17, 1988: 11.26 ft, below flood stage; 12,700 cubic feet per secondMay 8, 1989: 11.71 ft, below flood stage; 14,200 cubic feet per secondDec 5, 1989: 10.83 ft, below flood stage; 11,100 cubic feet per secondNov 25, 1990: 14.46 ft, minor flooding; 24,000 cubic feet per secondApr 30, 1992: 9.38 ft, below flood stage; 6,980 cubic feet per secondMay 15, 1993: 11.81 ft, below flood stage; 13,900 cubic feet per secondApr 22, 1994: 10.16 ft, below flood stage; 8,970 cubic feet per secondFeb 20, 1995: 13.13 ft, minor flooding; 21,000 cubic feet per secondNov 30, 1995: 14.61 ft, minor flooding; 32,500 cubic feet per secondFeb 9, 1996: 15.22 ft, moderate flooding; 39,200 cubic feet per secondMay 14, 1997: 13.42 ft, minor flooding; 25,100 cubic feet per secondMay 4, 1998: 10.52 ft, below flood stage; 9,320 cubic feet per secondMay 26, 1999: 12.44 ft, action stage; 16,700 cubic feet per secondApr 14, 2000: 12.09 ft, action stage; 15,400 cubic feet per secondMay 1, 2001: 9.74 ft, below flood stage; 8,030 cubic feet per secondApr 15, 2002: 13.25 ft, minor flooding; 23,600 cubic feet per secondFeb 1, 2003: 12.00 ft, action stage; 18,100 cubic feet per secondMay 23, 2004: 10.00 ft, below flood stage; 9,540 cubic feet per secondDec 11, 2004: 9.86 ft, below flood stage; 9,640 cubic feet per secondMay 19, 2006: 11.10 ft, below flood stage; 13,700 cubic feet per secondNov 7, 2006: 11.39 ft, below flood stage; 14,800 cubic feet per secondMay 19, 2008: 13.17 ft, minor flooding; 23,100 cubic feet per secondMay 19, 2009: 11.12 ft, below flood stage; 13,700 cubic feet per secondJun 4, 2010: 9.37 ft, below flood stage; 7,820 cubic feet per secondJan 18, 2011: 13.21 ft, minor flooding; 22,852 cubic feet per secondApr 25, 2012: 13.03 ft, minor flooding; 21,900 cubic feet per secondFeb 10, 2017: 17.04 ft, major floodingMar 19, 2017: 13.46 ft, minor flooding; 23,881 cubic feet per secondMay 7, 2018: 12.64 ft, action stage; 18,800 cubic feet per secondMay 8, 2019: 11.21 ft, below flood stage; 12,400 cubic feet per secondMay 1, 2020: 11.21 ft, below flood stage; 12,400 cubic feet per secondMay 2, 2021: 10.46 ft, below flood stage; 9,150 cubic feet per secondMay 7, 2022: 12.57 ft, action stage; 16,800 cubic feet per secondMay 3, 2023: 12.49 ft, action stage; 16,700 cubic feet per secondApr 15, 2024: 9.47 ft, below flood stage; 6,300 cubic feet per second Highest, 18.20 ft, Apr 18, 1938 19401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, St Joe River at Calder 1920s: 1 1930s: 4 1940s: 3 1950s: 5 1960s: 4 1970s: 7 7 1980s: 3 1990s: 5 2000s: 2 2010s: 4 2020s: 0 1920s1930s1940s1950s1960s1970s1980s1990s2000s2010s2020s
  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. 1 crest measured on an earlier gauge datum is left out: -0.09 ft on May 6, 1911.

Highest crests

The 50 highest of 100 listed crests.

Highest listed crests, St Joe River at Calder
1Apr 18, 193818.20+5.20Major46,000
2Dec 23, 193317.50+4.50Major53,000
3Feb 10, 201717.04+4.04Major—
4Dec 2, 197516.04+3.04Major—
5Jan 16, 197415.87+2.87Moderate33,000
6Jan 15, 198415.40+2.40Moderate—
7Feb 9, 199615.22+2.22Moderate39,200
8Jan 6, 196915.21+2.21Moderate—
9Feb 4, 192515.20+2.20Moderate—
10Dec 23, 196415.04+2.04Moderate30,400
11Nov 30, 199514.61+1.61Minor32,500
12Nov 25, 199014.46+1.46Minor24,000
13Dec 26, 198014.17+1.17Minor24,600
14Feb 21, 198214.10+1.10Minor23,800
15May 28, 194814.04+1.04Minor23,700
16Dec 15, 194613.98+0.98Minor23,600
17May 11, 197613.84+0.84Minor21,600
18May 15, 197913.72+0.72Minor21,000
19May 21, 195613.66+0.66Minor20,600
20Apr 12, 193613.65+0.65Minor20,000
21May 19, 195413.60+0.60Minor20,400
22Jun 1, 197213.53+0.53Minor21,600
23May 13, 197113.49+0.49Minor23,000
24Mar 19, 201713.46+0.46Minor23,881
25Mar 29, 193413.43+0.43Minor20,200
26May 14, 199713.42+0.42Minor25,100
27May 13, 194913.38+0.38Minor19,200
28May 14, 195013.34+0.34Minor18,400
29May 21, 195513.30+0.30Minor18,200
30Apr 15, 200213.25+0.25Minor23,600
31Jan 18, 201113.21+0.21Minor22,852
32May 23, 196713.19+0.19Minor18,200
33May 21, 196413.18+0.18Minor19,100
34May 19, 200813.17+0.17Minor23,100
35Dec 2, 197713.15+0.15Minor18,600
36Feb 20, 199513.13+0.13Minor21,000
37Feb 11, 195113.07+0.07Minor17,200
38Apr 25, 201213.03+0.03Minor21,900
39Dec 20, 192712.97−0.03Action—
40May 6, 192712.95−0.05Action18,000
41Apr 27, 195212.83−0.17Action16,200
42May 18, 192212.77−0.23Action17,600
43Apr 7, 196212.77−0.23Action16,600
44May 20, 195712.73−0.27Action16,700
45May 7, 201812.64−0.36Action18,800
46May 27, 196112.57−0.43Action15,500
47May 7, 202212.57−0.43Action16,800
48May 5, 194512.53−0.47Action15,500
49May 8, 192112.52−0.48Action17,400
50May 3, 202312.49−0.51Action16,700

The worst floods along the St Joe River

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

December 23, 1933: 17.50 ft here, major flooding

  • St MariesID · Dec 23, 1933 · 42.20 ft · Major · its highest

January 16, 1974: 15.87 ft here, moderate flooding

  • St MariesID · Jan 16, 1974 · 41.40 ft · Major

Gauges on the St Joe River

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

Flood gauges on the St Joe River
Calder this gaugeID13.018.20 ft, Apr 18, 19384
St MariesID32.542.20 ft, Dec 23, 19337

Other gauges in Shoshone County

Flood gauges in Shoshone County
Cataldo43.058.23 ft, Jan 16, 19744
Enaville72.081.32 ft, Jan 16, 19745

Shoshone County: every hazard · River floods across the country · Idaho

NOAA National Water Prediction Service, gauge CLDI1, 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.