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Alabama River at Henry Lock and Dam

Highest listed crest 135.40 ftFlood stage 122.0 ft23 crests since 1976

The Alabama River at Henry Lock and Dam crested at major flood stage 1 time among the 23 crests the National Weather Service lists from 1976 to 2018. The highest, 135.40 ft on March 20, 1990, was major flooding, 13.40 feet above flood stage. 4 other gauges on the Alabama River crested above flood stage within a week of it, 1 at its own highest listed crest.

The gauge

Highest listed crest
135.40 ft
March 20, 1990
Flood stage
122.0 ft
Major flooding from 135.0 ft
Crests at major
1
35th of 89 gauges in Alabama
Most recent flood crest
December 27, 2015
127.01 ft, minor flooding
Location
Lowndes County
Alabama

Flood stages

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

Flood categories, Alabama River at Henry Lock and Dam
Action stage122.00—The level at which the NWS or its partners begin to take action
Flood stage (minor)122.011Dec 27, 2015Minimal or no property damage, but possibly some public threat
Moderate flood stage132.01Apr 18, 1979Some inundation of structures and roads near the stream
Major flood stage135.01Mar 20, 1990Extensive inundation of structures and roads

Every listed crest

23 crests from 1976 to 2018. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Alabama River at Henry Lock and Dam, 1976 to 2018 100110120130140ft Flood stage 122.0 ftMajor 135.0 ft Apr 3, 1976: 126.90 ft, minor floodingApr 18, 1979: 133.00 ft, moderate floodingApr 1, 1980: 126.30 ft, minor floodingFeb 5, 1982: 123.60 ft, minor floodingApr 12, 1983: 126.18 ft, minor floodingJun 23, 1989: 124.80 ft, minor floodingJan 27, 1990: 119.97 ft, below flood stageFeb 21, 1990: 127.05 ft, minor floodingMar 20, 1990: 135.40 ft, major floodingApr 1, 1991: 110.90 ft, below flood stageMar 9, 1996: 122.56 ft, minor floodingMar 11, 1998: 125.92 ft, minor floodingMay 2, 2003: 121.36 ft, below flood stageApr 3, 2005: 126.02 ft, minor floodingMar 13, 2010: 121.46 ft, below flood stageMar 11, 2011: 115.36 ft, below flood stageMar 4, 2012: 102.49 ft, below flood stageFeb 14, 2013: 119.24 ft, below flood stageApr 10, 2014: 122.60 ft, minor floodingDec 27, 2015: 127.01 ft, minor floodingFeb 25, 2016: 113.59 ft, below flood stageJun 24, 2017: 115.57 ft, below flood stageDec 31, 2018: 120.20 ft, below flood stage Highest, 135.40 ft, Mar 20, 1990 1980199020002010

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Alabama River at Henry Lock and Dam 1970s: 2 1980s: 4 4 1990s: 4 2000s: 1 2010s: 2 1970s1980s1990s2000s2010s
  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, Alabama River at Henry Lock and Dam
1Mar 20, 1990135.40+13.40Major—
2Apr 18, 1979133.00+11.00Moderate—
3Feb 21, 1990127.05+5.05Minor—
4Dec 27, 2015127.01+5.01Minor—
5Apr 3, 1976126.90+4.90Minor—
6Apr 1, 1980126.30+4.30Minor—
7Apr 12, 1983126.18+4.18Minor—
8Apr 3, 2005126.02+4.02Minor—
9Mar 11, 1998125.92+3.92Minor—
10Jun 23, 1989124.80+2.80Minor—
11Feb 5, 1982123.60+1.60Minor—
12Apr 10, 2014122.60+0.60Minor—
13Mar 9, 1996122.56+0.56Minor—
14Mar 13, 2010121.46−0.54Below flood stage—
15May 2, 2003121.36−0.64Below flood stage—
16Dec 31, 2018120.20−1.80Below flood stage—
17Jan 27, 1990119.97−2.03Below flood stage—
18Feb 14, 2013119.24−2.76Below flood stage—
19Jun 24, 2017115.57−6.43Below flood stage—
20Mar 11, 2011115.36−6.64Below flood stage—
21Feb 25, 2016113.59−8.41Below flood stage—
22Apr 1, 1991110.90−11.10Below flood stage—
23Mar 4, 2012102.49−19.51Below flood stage—

The worst floods along the Alabama River

For this gauge's highest crests, the other gauges on the Alabama River that crested above flood stage within a week.

March 20, 1990: 135.40 ft here, major flooding

  • SelmaAL · Mar 21, 1990 · 56.80 ft · Major
  • Claiborne DamAL · Mar 25, 1990 · 56.60 ft · Major · its highest
  • MontgomeryAL · Mar 19, 1990 · 54.75 ft · Major
  • Miller's FerryAL · Mar 23, 1990 · 82.90 ft · Moderate

April 18, 1979: 133.00 ft here, moderate flooding

  • Claiborne DamAL · Apr 22, 1979 · 55.45 ft · Major
  • SelmaAL · Apr 18, 1979 · 55.02 ft · Major
  • MontgomeryAL · Apr 16, 1979 · 51.80 ft · Moderate

February 21, 1990: 127.05 ft here, minor flooding

  • Claiborne DamAL · Feb 25, 1990 · 54.30 ft · Major
  • SelmaAL · Feb 21, 1990 · 51.27 ft · Moderate
  • MontgomeryAL · Feb 21, 1990 · 43.50 ft · Minor

Gauges on the Alabama River

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

Flood gauges on the Alabama River
MontgomeryAL35.059.70 ft, Apr 1, 18868
Henry Lock and Dam this gaugeAL122.0135.40 ft, Mar 20, 19901
SelmaAL45.057.97 ft, Mar 1, 196111
Miller's FerryAL66.086.00 ft, Mar 3, 19611
Claiborne DamAL42.056.60 ft, Mar 25, 19908

Lowndes County: every hazard · River floods across the country · Alabama

NOAA National Water Prediction Service, gauge TYLA1, 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.