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Chattahoochee River at Highway 141 near Norcross

Highest listed crest 27.70 ftFlood stage 12.0 ft49 crests since 1886

The Chattahoochee River at Highway 141 near Norcross crested at major flood stage 13 times among the 49 crests the National Weather Service lists from 1886 to 2020. The highest, 27.70 ft on January 8, 1946, was major flooding, 15.70 feet above flood stage. 4 other gauges on the Chattahoochee River crested above flood stage within a week of it.

The gauge

Highest listed crest
27.70 ft
January 8, 1946; 55,000 cubic feet per second
Flood stage
12.0 ft
Major flooding from 20.0 ft
Crests at major
13
7th of 271 gauges in Georgia
Most recent flood crest
October 11, 2020
14.01 ft, minor flooding
Location
Fulton County
Near Johns Creek (2.5 mi), Peachtree Corners (2.7 mi), Duluth (3.0 mi)

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 Highway 141 near Norcross
Action stage10.00—The level at which the NWS or its partners begin to take action
Flood stage (minor)12.026Oct 11, 2020Minimal or no property damage, but possibly some public threat
Moderate flood stage16.010Mar 30, 1944Some inundation of structures and roads near the stream
Major flood stage20.013Jan 17, 1954Extensive inundation of structures and roads

Every listed crest

49 crests from 1886 to 2020. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Chattahoochee River at Highway 141 near Norcross, 1886 to 2020 1015202530ft Flood stage 12.0 ftMajor 20.0 ft Apr 1, 1886: 23.40 ft, major flooding; 40,000 cubic feet per secondMar 24, 1903: 20.60 ft, major flooding; 32,500 cubic feet per secondJan 13, 1905: 12.20 ft, minor flooding; 16,100 cubic feet per secondJan 4, 1906: 16.40 ft, moderate flooding; 24,300 cubic feet per secondApr 26, 1908: 14.30 ft, minor flooding; 20,400 cubic feet per secondMar 14, 1909: 16.00 ft, moderate flooding; 22,000 cubic feet per secondApr 6, 1911: 12.20 ft, minor flooding; 14,000 cubic feet per secondApr 16, 1912: 19.30 ft, moderate flooding; 30,500 cubic feet per secondMar 15, 1913: 13.40 ft, minor flooding; 16,000 cubic feet per secondDec 5, 1914: 14.80 ft, minor flooding; 18,400 cubic feet per secondDec 30, 1915: 21.40 ft, major flooding; 36,200 cubic feet per secondMar 25, 1917: 16.90 ft, moderate flooding; 24,200 cubic feet per secondDec 23, 1918: 21.30 ft, major flooding; 35,900 cubic feet per secondDec 10, 1919: 27.10 ft, major flooding; 54,700 cubic feet per secondFeb 10, 1921: 20.40 ft, major flooding; 33,300 cubic feet per secondMar 11, 1922: 12.40 ft, minor flooding; 14,000 cubic feet per secondDec 18, 1922: 14.60 ft, minor flooding; 18,600 cubic feet per secondJan 19, 1925: 13.40 ft, minor flooding; 16,800 cubic feet per secondJan 19, 1926: 14.80 ft, minor flooding; 19,700 cubic feet per secondAug 17, 1928: 12.80 ft, minor flooding; 15,600 cubic feet per secondSep 27, 1929: 19.60 ft, moderate flooding; 31,100 cubic feet per secondMar 8, 1930: 13.00 ft, minor flooding; 16,000 cubic feet per secondDec 16, 1931: 14.70 ft, minor flooding; 19,500 cubic feet per secondDec 29, 1932: 20.00 ft, major flooding; 32,100 cubic feet per secondMar 5, 1934: 19.90 ft, moderate flooding; 31,800 cubic feet per secondOct 7, 1934: 13.60 ft, minor flooding; 17,200 cubic feet per secondApr 7, 1936: 22.20 ft, major flooding; 38,400 cubic feet per secondJan 4, 1937: 18.10 ft, moderate flooding; 27,200 cubic feet per secondJul 23, 1938: 13.90 ft, minor flooding; 17,800 cubic feet per secondAug 19, 1939: 12.40 ft, minor flooding; 14,800 cubic feet per secondAug 15, 1940: 18.00 ft, moderate flooding; 22,500 cubic feet per secondFeb 18, 1942: 17.30 ft, moderate flooding; 20,600 cubic feet per secondDec 31, 1942: 14.80 ft, minor flooding; 15,500 cubic feet per secondMar 30, 1944: 18.00 ft, moderate flooding; 22,500 cubic feet per secondJan 8, 1946: 27.70 ft, major flooding; 55,000 cubic feet per secondJan 21, 1947: 20.10 ft, major flooding; 28,900 cubic feet per secondAug 6, 1948: 15.40 ft, minor flooding; 16,600 cubic feet per secondJan 7, 1949: 20.20 ft, major flooding; 29,200 cubic feet per secondMar 14, 1950: 12.00 ft, minor flooding; 11,000 cubic feet per secondMar 12, 1952: 22.00 ft, major flooding; 35,000 cubic feet per secondJan 11, 1953: 15.00 ft, minor flooding; 15,800 cubic feet per secondJan 17, 1954: 20.00 ft, major flooding; 28,600 cubic feet per secondFeb 9, 1955: 15.80 ft, minor flooding; 17,300 cubic feet per secondNov 22, 1962: 12.05 ft, minor flooding; 11,000 cubic feet per secondApr 5, 1964: 13.10 ft, minor flooding; 13,200 cubic feet per secondMar 16, 1973: 12.47 ft, minor flooding; 12,200 cubic feet per secondSep 22, 2009: 14.51 ft, minor flooding; 14,810 cubic feet per secondMay 19, 2013: 12.43 ft, minor flooding; 11,636 cubic feet per secondOct 11, 2020: 14.01 ft, minor flooding; 14,967 cubic feet per second Highest, 27.70 ft, Jan 8, 1946 1900192019401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Chattahoochee River at Highway 141 near Norcross 1880s: 1 1890s: 0 1900s: 5 1910s: 8 1920s: 7 1930s: 9 9 1940s: 8 1950s: 5 1960s: 2 1970s: 1 1980s: 0 1990s: 0 2000s: 1 2010s: 1 2020s: 1 1880s1900s1920s1940s1960s1980s2000s2020s
  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 Highway 141 near Norcross
1Jan 8, 194627.70+15.70Major55,000
2Dec 10, 191927.10+15.10Major54,700
3Apr 1, 188623.40+11.40Major40,000
4Apr 7, 193622.20+10.20Major38,400
5Mar 12, 195222.00+10.00Major35,000
6Dec 30, 191521.40+9.40Major36,200
7Dec 23, 191821.30+9.30Major35,900
8Mar 24, 190320.60+8.60Major32,500
9Feb 10, 192120.40+8.40Major33,300
10Jan 7, 194920.20+8.20Major29,200
11Jan 21, 194720.10+8.10Major28,900
12Dec 29, 193220.00+8.00Major32,100
13Jan 17, 195420.00+8.00Major28,600
14Mar 5, 193419.90+7.90Moderate31,800
15Sep 27, 192919.60+7.60Moderate31,100
16Apr 16, 191219.30+7.30Moderate30,500
17Jan 4, 193718.10+6.10Moderate27,200
18Aug 15, 194018.00+6.00Moderate22,500
19Mar 30, 194418.00+6.00Moderate22,500
20Feb 18, 194217.30+5.30Moderate20,600
21Mar 25, 191716.90+4.90Moderate24,200
22Jan 4, 190616.40+4.40Moderate24,300
23Mar 14, 190916.00+4.00Moderate22,000
24Feb 9, 195515.80+3.80Minor17,300
25Aug 6, 194815.40+3.40Minor16,600
26Jan 11, 195315.00+3.00Minor15,800
27Dec 5, 191414.80+2.80Minor18,400
28Jan 19, 192614.80+2.80Minor19,700
29Dec 31, 194214.80+2.80Minor15,500
30Dec 16, 193114.70+2.70Minor19,500
31Dec 18, 192214.60+2.60Minor18,600
32Sep 22, 200914.51+2.51Minor14,810
33Apr 26, 190814.30+2.30Minor20,400
34Oct 11, 202014.01+2.01Minor14,967
35Jul 23, 193813.90+1.90Minor17,800
36Oct 7, 193413.60+1.60Minor17,200
37Mar 15, 191313.40+1.40Minor16,000
38Jan 19, 192513.40+1.40Minor16,800
39Apr 5, 196413.10+1.10Minor13,200
40Mar 8, 193013.00+1.00Minor16,000
41Aug 17, 192812.80+0.80Minor15,600
42Mar 16, 197312.47+0.47Minor12,200
43May 19, 201312.43+0.43Minor11,636
44Mar 11, 192212.40+0.40Minor14,000
45Aug 19, 193912.40+0.40Minor14,800
46Jan 13, 190512.20+0.20Minor16,100
47Apr 6, 191112.20+0.20Minor14,000
48Nov 22, 196212.05+0.05Minor11,000
49Mar 14, 195012.000.00Minor11,000

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.

January 8, 1946: 27.70 ft here, major flooding

December 10, 1919: 27.10 ft here, major flooding

April 1, 1886: 23.40 ft here, major 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 Norcross this gaugeGA12.027.70 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)GA106.0128.28 ft, Mar 18, 19291

Other gauges in Fulton County

Flood gauges in Fulton County
Hog Wallow at Roswell10.015.41 ft, Sep 22, 20090
Alpharetta7.013.05 ft, Feb 3, 19821
Roswell9.011.96 ft, Sep 21, 20090
Atlanta14.029.00 ft, Dec 10, 191913
GA 280 near Atlanta24.035.98 ft, Sep 22, 20093
Morgan Falls Dam near Roswell821.0827.01 ft, Sep 22, 20091
Rickenbacker Drive at Atlanta11.015.50 ft, Dec 1, 19738
West Wesley Road at Atlanta12.025.46 ft, Sep 22, 20093
Atlanta17.025.80 ft, Dec 9, 19199
Jackson Parkway at Atlanta13.018.03 ft, Mar 13, 19750
Atlanta12.015.95 ft, Mar 13, 20190
Forrest Park Road at Atlanta15.016.62 ft, Sep 19, 20090
Great Southwest Parkway near Atlanta18.027.89 ft, Sep 22, 20091
Defoors Ferry Road at Atlanta15.023.61 ft, Sep 22, 20091

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

NOAA National Water Prediction Service, gauge NCRG1, 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.