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Chattahoochee River at George W. Andrews Lock and Dam (USACE)

Highest listed crest 128.28 ftFlood stage 106.0 ft29 crests since 1929

The Chattahoochee River at George W. Andrews Lock and Dam (USACE) crested at major flood stage 1 time among the 29 crests the National Weather Service lists from 1929 to 2024. The highest, 128.28 ft on March 18, 1929, was major flooding, 22.28 feet above flood stage. 3 other gauges on the Chattahoochee River crested above flood stage within a week of it, 2 at their own highest listed crest.

The gauge

Highest listed crest
128.28 ft
March 18, 1929; 203,000 cubic feet per second
Flood stage
106.0 ft
Major flooding from 124.0 ft
Crests at major
1
68th of 271 gauges in Georgia
Most recent flood crest
March 10, 2024
111.98 ft, minor flooding
Location
Early County
Georgia

Flood stages

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

Flood categories, Chattahoochee River at George W. Andrews Lock and Dam (USACE)
Action stage92.010Apr 18, 2022The level at which the NWS or its partners begin to take action
Flood stage (minor)106.07Mar 10, 2024Minimal or no property damage, but possibly some public threat
Moderate flood stage112.011Mar 7, 2020Some inundation of structures and roads near the stream
Major flood stage124.01Mar 18, 1929Extensive inundation of structures and roads

Every listed crest

29 crests from 1929 to 2024. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Chattahoochee River at George W. Andrews Lock and Dam (USACE), 1929 to 2024 90100110120130ft Flood stage 106.0 ftMajor 124.0 ft Mar 18, 1929: 128.28 ft, major flooding; 203,000 cubic feet per secondOct 2, 1929: 117.28 ft, moderate floodingJan 21, 1936: 117.20 ft, moderate floodingApr 12, 1936: 118.90 ft, moderate floodingJan 20, 1943: 118.60 ft, moderate floodingMar 24, 1943: 121.70 ft, moderate floodingDec 1, 1948: 121.80 ft, moderate floodingDec 1, 1964: 119.40 ft, moderate floodingJan 27, 1978: 118.12 ft, moderate floodingMar 19, 1990: 122.10 ft, moderate floodingApr 8, 2014: 106.09 ft, minor floodingApr 20, 2014: 106.57 ft, minor floodingDec 27, 2015: 120.67 ft, moderate floodingFeb 4, 2016: 99.74 ft, action stage; 45,000 cubic feet per secondApr 2, 2016: 101.35 ft, action stage; 52,000 cubic feet per secondJan 4, 2017: 104.23 ft, action stage; 59,180 cubic feet per secondJan 23, 2017: 97.79 ft, action stage; 43,500 cubic feet per secondFeb 12, 2018: 94.55 ft, action stage; 43,300 cubic feet per secondNov 17, 2018: 100.24 ft, action stage; 55,100 cubic feet per secondDec 15, 2018: 93.97 ft, action stage; 42,200 cubic feet per secondJan 16, 2020: 101.22 ft, action stage; 57,200 cubic feet per secondFeb 8, 2020: 106.30 ft, minor flooding; 72,700 cubic feet per secondFeb 23, 2020: 108.22 ft, minor flooding; 80,000 cubic feet per secondMar 7, 2020: 112.00 ft, moderate flooding; 97,800 cubic feet per secondSep 18, 2020: 101.00 ft, action stage; 57,000 cubic feet per secondFeb 6, 2022: 106.38 ft, minor floodingApr 18, 2022: 101.66 ft, action stage; 57,700 cubic feet per secondFeb 15, 2024: 110.01 ft, minor flooding; 87,900 cubic feet per secondMar 10, 2024: 111.98 ft, minor flooding; 97,489 cubic feet per second Highest, 128.28 ft, Mar 18, 1929 19401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Chattahoochee River at George W. Andrews Lock and Dam (USACE) 1920s: 2 1930s: 2 1940s: 3 1950s: 0 1960s: 1 1970s: 1 1980s: 0 1990s: 1 2000s: 0 2010s: 3 2020s: 6 6 1920s1930s1940s1950s1960s1970s1980s1990s2000s2010s2020s
  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, Chattahoochee River at George W. Andrews Lock and Dam (USACE)
1Mar 18, 1929128.28+22.28Major203,000
2Mar 19, 1990122.10+16.10Moderate—
3Dec 1, 1948121.80+15.80Moderate—
4Mar 24, 1943121.70+15.70Moderate—
5Dec 27, 2015120.67+14.67Moderate—
6Dec 1, 1964119.40+13.40Moderate—
7Apr 12, 1936118.90+12.90Moderate—
8Jan 20, 1943118.60+12.60Moderate—
9Jan 27, 1978118.12+12.12Moderate—
10Oct 2, 1929117.28+11.28Moderate—
11Jan 21, 1936117.20+11.20Moderate—
12Mar 7, 2020112.00+6.00Moderate97,800
13Mar 10, 2024111.98+5.98Minor97,489
14Feb 15, 2024110.01+4.01Minor87,900
15Feb 23, 2020108.22+2.22Minor80,000
16Apr 20, 2014106.57+0.57Minor—
17Feb 6, 2022106.38+0.38Minor—
18Feb 8, 2020106.30+0.30Minor72,700
19Apr 8, 2014106.09+0.09Minor—
20Jan 4, 2017104.23−1.77Action59,180
21Apr 18, 2022101.66−4.34Action57,700
22Apr 2, 2016101.35−4.65Action52,000
23Jan 16, 2020101.22−4.78Action57,200
24Sep 18, 2020101.00−5.00Action57,000
25Nov 17, 2018100.24−5.76Action55,100
26Feb 4, 201699.74−6.26Action45,000
27Jan 23, 201797.79−8.21Action43,500
28Feb 12, 201894.55−11.45Action43,300
29Dec 15, 201893.97−12.03Action42,200

The worst floods along the Chattahoochee River

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

March 18, 1929: 128.28 ft here, major flooding

March 19, 1990: 122.10 ft here, moderate flooding

December 1, 1948: 121.80 ft here, moderate flooding

Gauges on the Chattahoochee River

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

Flood gauges on the Chattahoochee River
HelenGA6.012.00 ft, Aug 23, 19672
CorneliaGA14.020.63 ft, Oct 11, 20200
Highway 141 near NorcrossGA12.027.70 ft, Jan 8, 194613
RoswellGA9.011.96 ft, Sep 21, 20090
Morgan Falls Dam near RoswellGA821.0827.01 ft, Sep 22, 20091
US 41 at AtlantaGA14.028.59 ft, Sep 22, 20095
AtlantaGA14.029.00 ft, Dec 10, 191913
GA 280 near AtlantaGA24.035.98 ft, Sep 22, 20093
FairburnGA20.031.60 ft, Dec 10, 19192
WhitesburgGA17.029.74 ft, Sep 23, 20093
GA 100 at FranklinGA23.030.55 ft, Sep 24, 20091
West PointGA17.029.25 ft, Dec 10, 191914
14th Street at ColumbusAL27.055.20 ft, Mar 15, 19294
W.F. George Lock and DamAL134.0158.50 ft, Mar 17, 19290
George W. Andrews Lock and Dam (USACE) this gaugeGA106.0128.28 ft, Mar 18, 19291

Early County: every hazard · River floods across the country · Georgia

NOAA National Water Prediction Service, gauge COLA1, 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.