Big Creek below Hog Wallow at Roswell
Georgia — Water Level & Flood Stage
Located in Fulton County, Georgia on the Big Creek. Live water level data from USGS gauge 02335757, updated every 15 minutes.
Current Water Level
Gage Height
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Streamflow
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Last Reading
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Flood Stages
Major Flood
17 ft
Moderate Flood
14 ft
Minor Flood
10 ft
Action Stage
9 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
17 ft
Major flooding begins with widespread inundation of yards along the creek...mainly upstream from the gage. Water up to two feet deep will be over portions of Oxbo Drive. Further downstream...moderate flooding expands into the Big Creek and Azalea parks along Riverside Road and Azalea Drive. If the Roswell gage on the Chattahoochee River is 6 feet or higher...then the combination of flows will cause the access road to the Huntcliff horse stables across from Azalea Park to flood.
15 ft
Moderate flooding of yards continues along the creek mainly upstream from the gage. Portions of Oxbo Drive will begin to flood. Further downstream...where the creek merges with the Chattahoochee River...minor flooding continues to expand into the Big Creek and Azalea Parks along Riverside Road and Azalea Drive. If the Roswell gage on the Chattahoochee River is 6.5 feet or higher...then the combination of flows will cause the access road to the Huntcliff horse stables across from Azalea Park to flood.
14 ft
Moderate flooding of yards begins along the creek...mainly upstream from the gage off Oxbo Drive. Further downstream...where the creek merges with the Chattahoochee River...minor flooding continues to expand into the Big Creek and Azalea parks...near Roswell Road and along Riverside Road and Azalea Drive. If the Roswell gage on the Chattahoochee River is 7 feet or higher...then the combination of flows will cause the access road to the Huntcliff horse stables across from Azalea Park to flood.
12 ft
Minor flooding continues to expand further into the woodlands and grassy areas along the creek upstream and downstream from the gage. Further downstream...where the creek merges with the Chattahoochee River...the Big Creek and Azalea parks near Roswell Road and along Riverside Road and Azalea Drive begin to flood. If the Roswell gage on the Chattahoochee River is 7.5 feet or higher...then the combination of flows will cause the access road to the Huntcliff horse stables across from Azalea Park to flood.
10 ft
Flood Stage is reached. Minor flooding of woodlands and grassy areas begin along the creek upstream and downstream from the gage off Oxbo Drive in the Roswell area. Also high water continues to encroach into the Big Creek Park two miles downstream along Roswell Road and Riverside Road. If the Roswell gage on the Chattahoochee River is 8 feet or higher...then the combination of flows will cause the access road to the Huntcliff horse stables across from Azalea Park to begin to flood.
9 ft
Bankfull conditions are reached along the creek upstream and downstream from the gage located off Oxbo Drive near the merger of Hog Wallow Creek. Also high water begins to encroach into the Big Creek Park... two miles downstream along Roswell Road and Riverside Road.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Sep 22, 2009 | 15.41 ft | 6,262 cfs |
| Sep 22, 2009 | 15.41 ft | 6,262 cfs |
| Sep 16, 2004 | 12.5 ft | 4,400 cfs |
| Sep 16, 2004 | 12.5 ft | 4,400 cfs |
| Sep 27, 2024 | 12.41 ft | 4,344 cfs |
About This Gauge
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Frequently Asked Questions
What is the current water level of Big Creek below Hog Wallow at Roswell?
The Big Creek below Hog Wallow at Roswell gauge is maintained by USGS (site 02335757) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Big Creek below Hog Wallow at Roswell?
The NWS-defined flood stage for Big Creek below Hog Wallow at Roswell is 10 feet. Action stage begins at 9 feet. Moderate flooding starts at 14 feet, and major flooding at 17 feet.
How do I get alerts when Big Creek rises?
Download StormCast free on Google Play, go to River Gauges, and add Big Creek below Hog Wallow at Roswell to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the Big Creek below Hog Wallow at Roswell gauge located?
The gauge is located in Fulton County, Georgia at coordinates 34.0175°N, 84.3533°W. USGS site number: 02335757. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Automated gauge readings are now available, courtesy of the USGS.