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Willow Creek (Eastern ID) below Ririe Dam near Ririe

Highest listed crest 14.07 ftFlood stage 12.1 ft6 crests since 1975

The Willow Creek (Eastern ID) below Ririe Dam near Ririe crested above flood stage 1 time among the 6 crests the National Weather Service lists from 1975 to 2022. The highest, 14.07 ft on May 20, 1975, was minor flooding, 1.97 feet above flood stage.

The gauge

Highest listed crest
14.07 ft
May 20, 1975; 2,320 cubic feet per second
Flood stage
12.1 ft
No major stage set
Crests at major
0
1 above flood stage
Most recent flood crest
May 20, 1975
14.07 ft, minor flooding
Location
Bonneville County
Near Ammon (13.1 mi)

Flood stages

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

Flood categories, Willow Creek (Eastern ID) below Ririe Dam near Ririe
Action stage10.50—The level at which the NWS or its partners begin to take action
Flood stage (minor)12.11May 20, 1975Minimal or no property damage, but possibly some public threat

Every listed crest

6 crests from 1975 to 2022. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Willow Creek (Eastern ID) below Ririe Dam near Ririe, 1975 to 2022 05101520ft Flood stage 12.1 ft May 20, 1975: 14.07 ft, minor flooding; 2,320 cubic feet per secondAug 28, 2002: 4.96 ft, below flood stage; 464 cubic feet per secondMay 4, 2017: 8.05 ft, below flood stage; 997 cubic feet per secondApr 29, 2018: 8.21 ft, below flood stage; 882 cubic feet per secondApr 29, 2020: 6.58 ft, below flood stage; 569 cubic feet per secondApr 13, 2022: 3.14 ft, below flood stage; 200 cubic feet per second Highest, 14.07 ft, May 20, 1975 19801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Willow Creek (Eastern ID) below Ririe Dam near Ririe 1970s: 1 1 1980s: 0 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, Willow Creek (Eastern ID) below Ririe Dam near Ririe
1May 20, 197514.07+1.97Minor2,320
2Apr 29, 20188.21−3.89Below flood stage882
3May 4, 20178.05−4.05Below flood stage997
4Apr 29, 20206.58−5.52Below flood stage569
5Aug 28, 20024.96−7.14Below flood stage464
6Apr 13, 20223.14−8.96Below flood stage200

Other gauges in Bonneville County

Flood gauges in Bonneville County
Heise8.011.26 ft, Jun 13, 19971
Idaho Falls13.218.91 ft, Jun 16, 19970

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

NOAA National Water Prediction Service, gauge RIRI1, 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.