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Nenana River at Healy

Highest listed crest 14.80 ftFlood stage 14.0 ft9 crests since 1990

The Nenana River at Healy crested above flood stage 4 times among the 9 crests the National Weather Service lists from 1990 to 2025. The highest, 14.80 ft on September 21, 2012, was minor flooding, 0.80 feet above flood stage.

The gauge

Highest listed crest
14.80 ft
September 21, 2012
Flood stage
14.0 ft
No major stage set
Crests at major
0
4 above flood stage
Most recent flood crest
August 30, 2025
14.04 ft, minor flooding
Location
Denali Borough
Alaska

Flood stages

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

Flood categories, Nenana River at Healy
Action stage14.00—The level at which the NWS or its partners begin to take action
Flood stage (minor)14.04Aug 30, 2025Minimal or no property damage, but possibly some public threat
Moderate flood stage15.00—Some inundation of structures and roads near the stream

Every listed crest

9 crests from 1990 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Nenana River at Healy, 1990 to 2025 1112131415ft Flood stage 14.0 ft Sep 15, 1990: 14.40 ft, minor flooding; 31,200 cubic feet per secondJun 23, 1991: 12.48 ft, below flood stage; 18,100 cubic feet per secondJul 28, 2003: 14.37 ft, minor flooding; 31,000 cubic feet per secondOct 4, 2003: 11.70 ft, below flood stage; 12,100 cubic feet per secondJun 19, 2005: 13.20 ft, below flood stage; 20,800 cubic feet per secondAug 20, 2006: 13.64 ft, below flood stage; 24,900 cubic feet per secondAug 7, 2007: 12.24 ft, below flood stage; 17,200 cubic feet per secondSep 21, 2012: 14.80 ft, minor floodingAug 30, 2025: 14.04 ft, minor flooding Highest, 14.80 ft, Sep 21, 2012 1990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Nenana River at Healy 1990s: 1 1 2000s: 1 2010s: 1 2020s: 1 1990s2000s2010s2020s
  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, Nenana River at Healy
1Sep 21, 201214.80+0.80Minor—
2Sep 15, 199014.40+0.40Minor31,200
3Jul 28, 200314.37+0.37Minor31,000
4Aug 30, 202514.04+0.04Minor—
5Aug 20, 200613.64−0.36Below flood stage24,900
6Jun 19, 200513.20−0.80Below flood stage20,800
7Jun 23, 199112.48−1.52Below flood stage18,100
8Aug 7, 200712.24−1.76Below flood stage17,200
9Oct 4, 200311.70−2.30Below flood stage12,100

Other gauges in Denali Borough

Flood gauges in Denali Borough
Bridge near Kantishna7.28.90 ft, Jun 26, 20140

Denali Borough: every hazard · River floods across the country · Alaska

NOAA National Water Prediction Service, gauge HNRA2, 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.