Big Creek near Alpharetta
Georgia — Water Level & Flood Stage
Located in Fulton County, Georgia on the Big Creek. Live water level data from USGS gauge 02335700, 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
13 ft
6,200 cfs
Moderate Flood
11 ft
3,020 cfs
Minor Flood
7 ft
797 cfs
Action Stage
6 ft
543 cfs
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
19 ft
Catastrophic flooding occurs along the creek with water reaching the bottom of Kimball Bridge Road. Webb Bridge Road...McGinnis Ferry Road...Windward Parkway...Haynes Bridge Road...and Georgia 400 will be under a few feet of water. Apartments on Gran Crique Drive and Jameson Pass in Alpharetta and numerous homes on Jade Cove Circle and La View Circle near Roswell will be flooded. Rock Mill Park will be completely under water. Flood waters begin to reach several buildings in the Northpoint Mall complex.
17 ft
Flooding never seen before will affect portions of Alpharetta along the creek. Webb Bridge Road...McGinnis Ferry Road...Haynes Bridge Road...Old Holcomb Bridge Road and Georgia 400 will be under water. Several apartments on Gran Crique Drive and numerous homes on Jade Cove Circle and La View Circle near Roswell will be flooded. Flooding expands in the Rock Mill Park with water covering the concrete pad of the octagon pavilion and half of the parking lot. The Big Creek Greenway is flooded up to 11 feet deep.
15 ft
Record flooding continues upstream and downstream from Kimball Bridge Road. Flooding occurs on Webb Bridge Road...McGinnis Ferry Road...Haynes Bridge Road...Old Holcomb Bridge Road and Georgia 400. Flood waters enter several apartments on Gran Crique Drive and numerous homes on Jade Cove Circle and La View Circle near Roswell. Flooding expands in the Rock Mill Park with water covering the concrete pad of the square pavilion and more of the parking lot. The Big Creek Greenway is flooded up to 9 feet deep.
14 ft
Record flooding occurs upstream and downstream from Kimball Bridge Road. Flooding occurs on Webb Bridge Road...McGinnis Ferry Road...Haynes Bridge Road and Old Holcomb Bridge Road. Flood waters enter several apartments on Gran Crique Drive and numerous homes on Jade Cove Circle and La View Circle near Roswell. Flooding expands in the Rock Mill Park with the water covering the concrete pad of the square pavilion and more of the parking lot. The Big Creek Greenway is flooded up to 8 feet deep.
13 ft
Major flooding begins with water hitting a foot bridge just downstream of the gage on Kimball Bridge Road. Flooding begins on Webb Bridge Road...McGinnis Ferry Road and in the backyards of homes off Society Street. Flood waters reach the foundations of apartments on Gran Crique Drive...and homes on Jade Cove Circle and La View Circle near Roswell. The Big Creek Greenway is flooded up to 7 feet deep. A large portion of Rock Mill Park is flooded and the lower end of the parking lot is affected.
12 ft
Significant flooding expands along the creek as water reaches the bottom of a foot bridge just downstream of the gage on Kimball Bridge Road. Backyards of homes off Seale Drive and Gunter Court and portions of the Golf Club of Georgia are under 3 feet of water. Backyards of homes off Jade Cove Circle and La View Circle near Roswell will be under a foot of water. The Big Creek Greenway is flooded up to 6 feet deep. Flooding covers portions of Rock Mill Park and the YMCA Campground off Preston Ridge Road.
11 ft
Moderate flooding begins and occurs upstream and downstream from the gage on Kimball Bridge Road near Rock Mill Park. Backyards of homes off Seale Drive and Gunter Court and portions of the Golf Club of Georgia are under two feet of water. Backyards of homes off Jade Cove Circle and La View Circle near Roswell begin to flood. The Big Creek Greenway will be flooded up to 5 feet deep and will be closed. A large portion of the YMCA Campground off Preston Ridge Road will be under 3 feet of water.
10 ft
Minor flooding expands along the creek from near Cumming to Alpharetta and Roswell. Backyards of homes off Seale Drive and Gunter Court and portions of the Golf of Georgia are under a foot of water. The Big Creek Greenway experiences significant flooding up to 4 feet deep with closure of the paths. This especially occurs upstream and downstream from the gage on Kimball Bridge Road and Rock Mill Park. A large portion of the YMCA Campground off Preston Ridge Road will be under a two feet of water.
9 ft
Minor flooding expands along the creek from near Cumming to Alpharetta and Roswell. Backyards of homes off Seale Drive and Gunter Court and portions of the Golf of Georgia begin to flood. The Big Creek Greenway experiences significant flooding up to 3 feet deep...which results in closure of most of the paths. This especially occurs upstream and downstream from the gage on Kimball Bridge Road and Rock Mill Park. A large portion of the YMCA Campground off Preston Ridge Road will be under a foot of water.
8 ft
Minor flooding continues to expand further into the woodlands and fields along the creek from near Cumming in south Forsyth County to Alpharetta and Roswell in north Fulton County. Additional portions of The Big Creek Greenway have minor flooding with 1 to 2 feet of water. Most of the walking and biking paths will be closed...especially upstream and downstream from the gage on Kimball Bridge Road and near Rock Mill Park. Portions of the YMCA Campground off Preston Ridge Road will flood.
7 ft
Flood Stage is reached. Minor flooding of woodlands and fields begin along the creek between Cumming in Forsyth County...to Alpharetta and Roswell in North Fulton County. Flooding starts to effect portions of The Big Creek Greenway near Alpharetta and some portions may become closed with around one foot of water...especially upstream and downstream from the gage on Kimball Bridge Road and near Rock Mill Park. Portions of the YMCA Campground off Preston Ridge Road will begin to flood.
6 ft
Bankfull conditions are reached along the creek between Cumming in Forsyth County...to Alpharetta and Roswell in North Fulton County. Some low lying spots along The Big Creek Greenway will begin to flood with a few inches of water upstream and downstream from the gage on Kimball Bridge Road. Water will begin to enter low portions of the YMCA Campground off Preston Ridge Road.
Impact statements from the National Weather Service, describing what typically happens at each water level.
Low-Water Impacts
55-120 cfs
The paddling run from Big Creek (or Vickery Creek) at Oxbow Road to Azalea Drive on the Chattahoochee River is considered a class II-III run. A minimum flow of at least 55 cfs is recommended for paddling.
120-400 cfs
Minimum flow for whitewater kayaking on the 2.6 mile stretch from Grimes Bridge Road to Vickery Creek Park.
What happens as water levels drop, per the National Weather Service.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Feb 2, 1982 | 13.05 ft | 6,100 cfs |
| Feb 2, 1982 | 13.05 ft | 6,100 cfs |
| Mar 16, 1990 | 12.81 ft | 5,820 cfs |
| Mar 16, 1990 | 12.81 ft | 5,820 cfs |
| Feb 20, 1961 | 12.54 ft | 5,800 cfs |
About This Gauge
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Frequently Asked Questions
What is the current water level of Big Creek near Alpharetta?
The Big Creek near Alpharetta gauge is maintained by USGS (site 02335700) 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 near Alpharetta?
The NWS-defined flood stage for Big Creek near Alpharetta is 7 feet. Action stage begins at 6 feet. Moderate flooding starts at 11 feet, and major flooding at 13 feet.
How do I get alerts when Big Creek rises?
Download StormCast free on Google Play, go to River Gauges, and add Big Creek near Alpharetta 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 near Alpharetta gauge located?
The gauge is located in Fulton County, Georgia at coordinates 34.0506°N, 84.2694°W. USGS site number: 02335700. 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, Observations courtesy of U.S. Army Corps of Engineers
- Automated gauge readings are now available, courtesy of the USGS.
- River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.