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Bear River at Idaho-Utah State Line

Highest listed crest 21.72 ftFlood stage 18.1 ft43 crests since 1971

The Bear River at Idaho-Utah State Line crested above flood stage 11 times among the 43 crests the National Weather Service lists from 1971 to 2021. The highest, 21.72 ft on June 21, 1983, was minor flooding, 3.65 feet above flood stage.

The gauge

Highest listed crest
21.72 ft
June 21, 1983; 4,870 cubic feet per second
Flood stage
18.1 ft
No major stage set
Crests at major
0
11 above flood stage
Most recent flood crest
March 12, 1985
21.11 ft, minor flooding
Location
Franklin County
Near Smithfield (13.2 mi)

Flood stages

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

Flood categories, Bear River at Idaho-Utah State Line
Action stage15.86Feb 11, 2017The level at which the NWS or its partners begin to take action
Flood stage (minor)18.111Mar 12, 1985Minimal or no property damage, but possibly some public threat

Every listed crest

43 crests from 1971 to 2021. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Bear River at Idaho-Utah State Line, 1971 to 2021 10121416182022ft Flood stage 18.1 ft Jun 12, 1971: 20.25 ft, minor flooding; 4,190 cubic feet per secondApr 13, 1972: 18.95 ft, minor flooding; 3,100 cubic feet per secondApr 18, 1973: 18.35 ft, minor flooding; 2,840 cubic feet per secondApr 29, 1974: 18.40 ft, minor flooding; 2,980 cubic feet per secondMay 18, 1975: 18.60 ft, minor flooding; 3,070 cubic feet per secondApr 12, 1976: 18.84 ft, minor flooding; 3,400 cubic feet per secondApr 17, 1979: 17.36 ft, action stage; 2,770 cubic feet per secondJun 4, 1980: 19.33 ft, minor flooding; 4,050 cubic feet per secondMay 9, 1982: 20.04 ft, minor flooding; 3,080 cubic feet per secondJun 21, 1983: 21.72 ft, minor flooding; 4,870 cubic feet per secondJun 14, 1984: 21.20 ft, minor flooding; 4,870 cubic feet per secondMar 12, 1985: 21.11 ft, minor flooding; 4,780 cubic feet per secondNov 22, 1986: 16.38 ft, action stage; 2,960 cubic feet per secondOct 1, 1988: 15.46 ft, below flood stage; 2,900 cubic feet per secondApr 30, 1990: 14.50 ft, below flood stage; 2,340 cubic feet per secondJun 4, 1991: 16.15 ft, action stage; 3,630 cubic feet per secondMar 21, 1992: 13.00 ft, below flood stage; 1,560 cubic feet per secondMay 27, 1996: 15.95 ft, action stage; 2,910 cubic feet per secondMay 25, 1997: 16.22 ft, action stage; 3,050 cubic feet per secondApr 24, 1998: 15.43 ft, below flood stage; 2,650 cubic feet per secondMay 4, 1999: 15.41 ft, below flood stage; 2,640 cubic feet per secondNov 12, 1999: 14.74 ft, below flood stage; 2,390 cubic feet per secondJul 4, 2001: 12.46 ft, below flood stage; 1,470 cubic feet per secondApr 6, 2002: 12.89 ft, below flood stage; 1,550 cubic feet per secondAug 3, 2003: 12.08 ft, below flood stage; 1,260 cubic feet per secondMar 27, 2004: 11.85 ft, below flood stage; 1,180 cubic feet per secondApr 28, 2005: 14.72 ft, below flood stage; 2,370 cubic feet per secondApr 17, 2006: 15.58 ft, below flood stage; 2,750 cubic feet per secondApr 12, 2007: 11.90 ft, below flood stage; 1,230 cubic feet per secondMay 26, 2008: 11.85 ft, below flood stage; 1,210 cubic feet per secondJun 16, 2009: 13.76 ft, below flood stage; 2,160 cubic feet per secondApr 20, 2010: 11.47 ft, below flood stage; 1,180 cubic feet per secondApr 19, 2011: 15.07 ft, below flood stage; 2,740 cubic feet per secondNov 22, 2011: 12.89 ft, below flood stage; 1,750 cubic feet per secondApr 15, 2013: 11.81 ft, below flood stage; 1,330 cubic feet per secondFeb 14, 2014: 11.38 ft, below flood stage; 1,160 cubic feet per secondMay 31, 2015: 12.28 ft, below flood stage; 1,560 cubic feet per secondApr 15, 2016: 12.50 ft, below flood stage; 1,640 cubic feet per secondFeb 11, 2017: 17.66 ft, action stage; 3,790 cubic feet per secondMar 24, 2018: 14.11 ft, below flood stage; 2,260 cubic feet per secondApr 17, 2019: 14.23 ft, below flood stage; 2,320 cubic feet per secondMar 25, 2020: 13.16 ft, below flood stage; 1,900 cubic feet per secondJun 28, 2021: 11.05 ft, below flood stage; 1,120 cubic feet per second Highest, 21.72 ft, Jun 21, 1983 19801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Bear River at Idaho-Utah State Line 1970s: 6 6 1980s: 5 1990s: 0 2000s: 0 2010s: 0 2020s: 0 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.

Highest crests

Highest listed crests, Bear River at Idaho-Utah State Line
1Jun 21, 198321.72+3.65Minor4,870
2Jun 14, 198421.20+3.13Minor4,870
3Mar 12, 198521.11+3.04Minor4,780
4Jun 12, 197120.25+2.18Minor4,190
5May 9, 198220.04+1.97Minor3,080
6Jun 4, 198019.33+1.26Minor4,050
7Apr 13, 197218.95+0.88Minor3,100
8Apr 12, 197618.84+0.77Minor3,400
9May 18, 197518.60+0.53Minor3,070
10Apr 29, 197418.40+0.33Minor2,980
11Apr 18, 197318.35+0.28Minor2,840
12Feb 11, 201717.66−0.41Action3,790
13Apr 17, 197917.36−0.71Action2,770
14Nov 22, 198616.38−1.69Action2,960
15May 25, 199716.22−1.85Action3,050
16Jun 4, 199116.15−1.92Action3,630
17May 27, 199615.95−2.12Action2,910
18Apr 17, 200615.58−2.49Below flood stage2,750
19Oct 1, 198815.46−2.61Below flood stage2,900
20Apr 24, 199815.43−2.64Below flood stage2,650
21May 4, 199915.41−2.66Below flood stage2,640
22Apr 19, 201115.07−3.00Below flood stage2,740
23Nov 12, 199914.74−3.33Below flood stage2,390
24Apr 28, 200514.72−3.35Below flood stage2,370
25Apr 30, 199014.50−3.57Below flood stage2,340
26Apr 17, 201914.23−3.84Below flood stage2,320
27Mar 24, 201814.11−3.96Below flood stage2,260
28Jun 16, 200913.76−4.31Below flood stage2,160
29Mar 25, 202013.16−4.91Below flood stage1,900
30Mar 21, 199213.00−5.07Below flood stage1,560
31Apr 6, 200212.89−5.18Below flood stage1,550
32Nov 22, 201112.89−5.18Below flood stage1,750
33Apr 15, 201612.50−5.57Below flood stage1,640
34Jul 4, 200112.46−5.61Below flood stage1,470
35May 31, 201512.28−5.79Below flood stage1,560
36Aug 3, 200312.08−5.99Below flood stage1,260
37Apr 12, 200711.90−6.17Below flood stage1,230
38Mar 27, 200411.85−6.22Below flood stage1,180
39May 26, 200811.85−6.22Below flood stage1,210
40Apr 15, 201311.81−6.26Below flood stage1,330
41Apr 20, 201011.47−6.60Below flood stage1,180
42Feb 14, 201411.38−6.69Below flood stage1,160
43Jun 28, 202111.05−7.02Below flood stage1,120

Gauges on the Bear River

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

Flood gauges on the Bear River
EvanstonWY7.07.60 ft, Jun 8, 20100
Pixley DamWY8.510.90 ft, Jun 5, 19831
CokevilleWY6.08.75 ft, Jun 7, 19830
BorderID7.59.69 ft, Jun 7, 19830
Idaho-Utah State Line this gaugeID18.121.72 ft, Jun 21, 19830
CollinstonUT8.28.70 ft, Feb 20, 19861
CorinneUT15.517.50 ft, May 19, 19841

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

NOAA National Water Prediction Service, gauge BIUI1, 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.