Highest listed crest 10.55 ft May 20, 1954; 9,400 cubic feet per second
Flood stage 9.0 ft Major flooding from 11.0 ft
Crests at major 0 26 above flood stage
Most recent flood crest May 17, 2018 9.09 ft, minor flooding Listed crests at the Moyie River at Eastport, 1930 to 2024 4 6 8 10 12 ft Flood stage 9.0 ft Major 11.0 ft May 31, 1930: 7.09 ft, below flood stage; 3,330 cubic feet per second May 15, 1931: 6.82 ft, below flood stage; 2,870 cubic feet per second May 22, 1932: 8.16 ft, action stage; 5,440 cubic feet per second May 31, 1933: 8.14 ft, action stage; 5,120 cubic feet per second Apr 28, 1934: 9.46 ft, minor flooding; 6,240 cubic feet per second May 23, 1935: 8.14 ft, action stage; 4,420 cubic feet per second Apr 18, 1936: 7.55 ft, below flood stage; 3,740 cubic feet per second May 28, 1937: 7.25 ft, below flood stage; 3,300 cubic feet per second Apr 18, 1938: 8.99 ft, action stage; 6,080 cubic feet per second May 4, 1939: 7.50 ft, below flood stage; 3,740 cubic feet per second May 12, 1940: 7.13 ft, below flood stage; 3,150 cubic feet per second May 17, 1941: 6.72 ft, below flood stage; 2,560 cubic feet per second May 27, 1942: 8.74 ft, action stage; 5,680 cubic feet per second Apr 19, 1943: 8.80 ft, action stage; 5,920 cubic feet per second May 9, 1944: 5.77 ft, below flood stage; 1,500 cubic feet per second May 6, 1945: 7.76 ft, below flood stage; 4,370 cubic feet per second May 6, 1946: 8.76 ft, action stage; 6,060 cubic feet per second May 10, 1947: 9.17 ft, minor flooding; 6,800 cubic feet per second May 24, 1948: 10.25 ft, moderate flooding; 8,030 cubic feet per second May 14, 1949: 9.15 ft, minor flooding; 6,190 cubic feet per second May 15, 1950: 9.22 ft, minor flooding; 6,650 cubic feet per second May 12, 1951: 9.11 ft, minor flooding; 6,450 cubic feet per second Apr 28, 1952: 8.73 ft, action stage; 5,760 cubic feet per second May 19, 1953: 8.08 ft, action stage; 4,850 cubic feet per second May 20, 1954: 10.55 ft, moderate flooding; 9,400 cubic feet per second May 21, 1955: 8.65 ft, action stage; 5,540 cubic feet per second May 20, 1956: 10.52 ft, moderate flooding; 9,310 cubic feet per second May 6, 1957: 8.91 ft, action stage; 6,200 cubic feet per second May 12, 1958: 7.94 ft, below flood stage; 4,550 cubic feet per second Jun 6, 1959: 8.42 ft, action stage; 5,410 cubic feet per second May 13, 1960: 8.93 ft, action stage; 6,120 cubic feet per second May 27, 1961: 10.44 ft, moderate flooding; 8,450 cubic feet per second May 25, 1962: 7.59 ft, below flood stage; 3,940 cubic feet per second May 24, 1963: 7.82 ft, below flood stage; 4,400 cubic feet per second May 21, 1964: 8.80 ft, action stage; 6,940 cubic feet per second May 16, 1965: 7.98 ft, below flood stage; 4,860 cubic feet per second May 10, 1966: 8.72 ft, action stage; 6,600 cubic feet per second May 23, 1967: 9.54 ft, minor flooding; 7,680 cubic feet per second May 14, 1969: 9.08 ft, minor flooding; 6,780 cubic feet per second May 26, 1970: 7.79 ft, below flood stage; 4,400 cubic feet per second May 12, 1971: 9.38 ft, minor flooding; 7,360 cubic feet per second Jun 1, 1972: 9.35 ft, minor flooding; 7,380 cubic feet per second May 18, 1973: 8.36 ft, action stage; 5,400 cubic feet per second Jun 17, 1974: 9.19 ft, minor flooding; 6,980 cubic feet per second May 16, 1975: 8.43 ft, action stage; 5,750 cubic feet per second May 11, 1976: 10.32 ft, moderate flooding; 9,100 cubic feet per second May 2, 1977: 6.14 ft, below flood stage; 1,950 cubic feet per second May 15, 1978: 8.03 ft, action stage; 4,680 cubic feet per second May 6, 1979: 6.98 ft, below flood stage; 3,070 cubic feet per second Apr 29, 1980: 8.73 ft, action stage; 5,970 cubic feet per second May 25, 1981: 8.36 ft, action stage; 5,420 cubic feet per second May 26, 1982: 8.69 ft, action stage; 6,150 cubic feet per second May 26, 1983: 8.30 ft, action stage; 5,380 cubic feet per second May 30, 1984: 7.57 ft, below flood stage; 4,110 cubic feet per second May 20, 1985: 7.70 ft, below flood stage; 4,390 cubic feet per second May 28, 1986: 7.40 ft, below flood stage; 3,900 cubic feet per second May 1, 1987: 8.54 ft, action stage; 5,320 cubic feet per second May 13, 1988: 7.12 ft, below flood stage; 3,330 cubic feet per second May 8, 1989: 8.44 ft, action stage; 5,810 cubic feet per second Jun 7, 1990: 8.29 ft, action stage; 5,140 cubic feet per second May 20, 1991: 8.90 ft, action stage; 6,420 cubic feet per second May 8, 1992: 6.60 ft, below flood stage; 2,720 cubic feet per second May 14, 1993: 7.87 ft, below flood stage; 4,480 cubic feet per second Apr 22, 1994: 7.45 ft, below flood stage; 3,840 cubic feet per second May 18, 1995: 7.87 ft, below flood stage; 4,480 cubic feet per second Jun 5, 1996: 8.20 ft, action stage; 5,010 cubic feet per second May 17, 1997: 10.26 ft, moderate flooding; 8,890 cubic feet per second May 30, 1998: 9.41 ft, minor flooding; 7,180 cubic feet per second May 26, 1999: 9.39 ft, minor flooding; 7,140 cubic feet per second May 4, 2000: 7.48 ft, below flood stage; 3,880 cubic feet per second May 24, 2001: 6.50 ft, below flood stage; 2,540 cubic feet per second May 21, 2002: 10.46 ft, moderate flooding; 9,310 cubic feet per second May 26, 2003: 7.56 ft, below flood stage; 4,000 cubic feet per second May 5, 2004: 6.75 ft, below flood stage; 2,830 cubic feet per second May 17, 2005: 6.82 ft, below flood stage; 2,680 cubic feet per second May 20, 2006: 9.24 ft, minor flooding; 6,880 cubic feet per second Mar 25, 2007: 8.75 ft, action stage; 5,910 cubic feet per second May 21, 2008: 9.96 ft, minor flooding; 8,450 cubic feet per second May 30, 2009: 7.80 ft, below flood stage; 4,170 cubic feet per second Jun 3, 2010: 8.26 ft, action stage; 4,980 cubic feet per second May 26, 2011: 9.00 ft, minor flooding; 6,390 cubic feet per second Jun 9, 2011: 9.14 ft, minor flooding; 6,670 cubic feet per second Jun 6, 2012: 8.88 ft, action stage; 6,150 cubic feet per second May 14, 2013: 9.10 ft, minor flooding; 6,590 cubic feet per second May 24, 2014: 8.49 ft, action stage; 5,490 cubic feet per second Mar 16, 2015: 6.66 ft, below flood stage; 2,560 cubic feet per second Apr 23, 2016: 7.30 ft, below flood stage; 3,650 cubic feet per second May 7, 2017: 8.52 ft, action stage; 5,540 cubic feet per second May 9, 2018: 9.53 ft, minor flooding; 7,494 cubic feet per second May 17, 2018: 9.09 ft, minor flooding; 7,057 cubic feet per second May 17, 2019: 6.76 ft, below flood stage; 3,040 cubic feet per second May 31, 2020: 8.26 ft, action stage; 5,320 cubic feet per second May 18, 2021: 6.79 ft, below flood stage; 3,030 cubic feet per second Jun 14, 2022: 8.86 ft, action stage; 6,650 cubic feet per second May 6, 2023: 8.04 ft, action stage; 5,080 cubic feet per second May 17, 2024: 7.03 ft, below flood stage; 3,380 cubic feet per second Highest, 10.55 ft, May 20, 1954 1940 1960 1980 2000 2020 Crests at or above flood stage, by decade Crests at or above flood stage per decade, Moyie River at Eastport 1930s: 1 1940s: 3 1950s: 4 1960s: 3 1970s: 4 1980s: 0 1990s: 3 2000s: 3 2010s: 5 5 2020s: 0 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s 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. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable. 05 Other gauges in Boundary County Boundary County: every hazard · River floods across the country · Idaho
NOAA National Water Prediction Service, gauge EASI1, 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.