Search
Menu

Explore

Hazards

Analysis

Rankings

Reference

Tazlina River near Glennallen

Highest listed crest 41.77 ftFlood stage 31.0 ft18 crests since 1995

The Tazlina River near Glennallen crested at major flood stage 2 times among the 18 crests the National Weather Service lists from 1995 to 2021. The highest, 41.77 ft on May 31, 2008, was major flooding, 10.77 feet above flood stage.

The gauge

Highest listed crest
41.77 ft
May 31, 2008
Flood stage
31.0 ft
Major flooding from 36.0 ft
Crests at major
2
9th of 110 gauges in Alaska
Most recent flood crest
May 31, 2008
41.77 ft, major flooding

Flood stages

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

Flood categories, Tazlina River near Glennallen
Action stage28.56Jul 27, 2016The level at which the NWS or its partners begin to take action
Flood stage (minor)31.02Jul 19, 2003Minimal or no property damage, but possibly some public threat
Moderate flood stage32.02Aug 6, 2004Some inundation of structures and roads near the stream
Major flood stage36.02May 31, 2008Extensive inundation of structures and roads

Every listed crest

18 crests from 1995 to 2021. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Tazlina River near Glennallen, 1995 to 2021 2530354045ft Flood stage 31.0 ftMajor 36.0 ft Aug 2, 1995: 36.25 ft, major floodingAug 5, 1996: 26.92 ft, below flood stageAug 14, 1997: 35.00 ft, moderate floodingJul 22, 1998: 28.95 ft, action stageAug 8, 1999: 29.50 ft, action stageAug 12, 2000: 31.45 ft, minor floodingSep 12, 2001: 29.55 ft, action stageJul 29, 2002: 28.48 ft, below flood stageJul 19, 2003: 31.30 ft, minor floodingAug 6, 2004: 32.70 ft, moderate floodingSep 11, 2005: 30.45 ft, action stageMay 31, 2008: 41.77 ft, major floodingAug 12, 2010: 27.99 ft, below flood stage; 19,237 cubic feet per secondSep 23, 2014: 29.08 ft, action stageAug 24, 2015: 27.84 ft, below flood stageJul 27, 2016: 29.30 ft, action stageJul 28, 2017: 28.46 ft, below flood stageJul 30, 2021: 28.42 ft, below flood stage Highest, 41.77 ft, May 31, 2008 199520002005201020152020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Tazlina River near Glennallen 1990s: 2 2000s: 4 4 2010s: 0 2020s: 0 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, Tazlina River near Glennallen
1May 31, 200841.77+10.77Major—
2Aug 2, 199536.25+5.25Major—
3Aug 14, 199735.00+4.00Moderate—
4Aug 6, 200432.70+1.70Moderate—
5Aug 12, 200031.45+0.45Minor—
6Jul 19, 200331.30+0.30Minor—
7Sep 11, 200530.45−0.55Action—
8Sep 12, 200129.55−1.45Action—
9Aug 8, 199929.50−1.50Action—
10Jul 27, 201629.30−1.70Action—
11Sep 23, 201429.08−1.92Action—
12Jul 22, 199828.95−2.05Action—
13Jul 29, 200228.48−2.52Below flood stage—
14Jul 28, 201728.46−2.54Below flood stage—
15Jul 30, 202128.42−2.58Below flood stage—
16Aug 12, 201027.99−3.01Below flood stage19,237
17Aug 24, 201527.84−3.16Below flood stage—
18Aug 5, 199626.92−4.08Below flood stage—

Other gauges in Copper River Census Area

Flood gauges in Copper River Census Area
Sourdough11.016.03 ft, May 7, 19760
the Richardson Highway near Gulkana10.018.45 ft, May 11, 19860
Glenn Hwy10.512.30 ft, Jun 9, 20120
the Richardson Hwy near Tonsina12.514.57 ft, Oct 11, 20060
McCarthy1,350.01,353.71 ft, Jul 29, 19940

Copper River Census Area: every hazard · River floods across the country · Alaska

NOAA National Water Prediction Service, gauge TAZA2, 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.