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Sweetwater Creek near Northwest Austell

Highest listed crest 37.04 ftFlood stage 19.0 ft5 crests since 2009

The Sweetwater Creek near Northwest Austell crested at major flood stage 1 time among the 5 crests the National Weather Service lists from 2009 to 2025. The highest, 37.04 ft on September 22, 2009, was major flooding, 18.04 feet above flood stage. 2 other gauges on the Sweetwater Creek crested above flood stage within a week of it, 2 at their own highest listed crest.

The gauge

Highest listed crest
37.04 ft
September 22, 2009
Flood stage
19.0 ft
Major flooding from 27.0 ft
Crests at major
1
68th of 271 gauges in Georgia
Most recent flood crest
February 14, 2025
19.79 ft, minor flooding
Location
Cobb County
Near Powder Springs (3.7 mi), Mableton (4.2 mi), Douglasville (6.3 mi)

Flood stages

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

Flood categories, Sweetwater Creek near Northwest Austell
Action stage16.00—The level at which the NWS or its partners begin to take action
Flood stage (minor)19.04Feb 14, 2025Minimal or no property damage, but possibly some public threat
Moderate flood stage23.00—Some inundation of structures and roads near the stream
Major flood stage27.01Sep 22, 2009Extensive inundation of structures and roads

Every listed crest

5 crests from 2009 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Sweetwater Creek near Northwest Austell, 2009 to 2025 152025303540ft Flood stage 19.0 ftMajor 27.0 ft Sep 22, 2009: 37.04 ft, major floodingMay 6, 2021: 19.71 ft, minor flooding; 2,853 cubic feet per secondJan 26, 2024: 19.15 ft, minor flooding; 2,714 cubic feet per secondSep 28, 2024: 21.31 ft, minor flooding; 3,254 cubic feet per secondFeb 14, 2025: 19.79 ft, minor flooding; 2,874 cubic feet per second Highest, 37.04 ft, Sep 22, 2009 2010201520202025

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Sweetwater Creek near Northwest Austell 2000s: 1 2010s: 0 2020s: 4 4 2000s2010s2020s
  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, Sweetwater Creek near Northwest Austell
1Sep 22, 200937.04+18.04Major—
2Sep 28, 202421.31+2.31Minor3,254
3Feb 14, 202519.79+0.79Minor2,874
4May 6, 202119.71+0.71Minor2,853
5Jan 26, 202419.15+0.15Minor2,714

The worst floods along the Sweetwater Creek

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

September 22, 2009: 37.04 ft here, major flooding

September 28, 2024: 21.31 ft here, minor flooding

February 14, 2025: 19.79 ft here, minor flooding

Gauges on the Sweetwater Creek

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

Flood gauges on the Sweetwater Creek
Brownsville Road near Powder SpringsGA13.031.45 ft, Sep 21, 20091
Northwest Austell this gaugeGA19.037.04 ft, Sep 22, 20091
AustellGA10.030.82 ft, Sep 22, 200911
AustellGA21.025.43 ft, Sep 28, 20240

Other gauges in Cobb County

Flood gauges in Cobb County
Stilesboro Road near Acworth13.023.90 ft, Sep 21, 20091
Mack Dobbs Road near Kennesaw11.014.27 ft, Sep 21, 20090
US 41 at Atlanta14.028.59 ft, Sep 22, 20095
US Highway 78 and 278 near Mableton10.019.85 ft, Sep 22, 20090
Chastain Meadows Parkway near Kennesaw11.011.94 ft, Sep 27, 20240
Hawkins Store Road near Blackwells11.017.31 ft, Sep 21, 20090
Shallowford River near Woodstock10.019.66 ft, Sep 21, 20091
Powder Springs Road near Powder Springs11.023.20 ft, Sep 22, 20091
Clay Road near Austell12.027.40 ft, Sep 22, 20091
Powder Springs11.019.82 ft, Sep 21, 20090
Interstate North Parkway near Smyrna14.014.67 ft, Sep 8, 20210
GA 120 near Marietta11.013.26 ft, Sep 21, 20090
Lower Roswell Road near Marietta12.021.10 ft, Mar 30, 19776
Brownsville Road near Powder Springs13.031.45 ft, Sep 21, 20091
GA 120 near Roswell12.014.70 ft, Sep 21, 20090

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

NOAA National Water Prediction Service, gauge NATG1, 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.