Big Creek near Alpharetta, GA
Is Big Creek near Alpharetta, GA flooding right now?
Big Creek near Alpharetta, GA measured 4.40 ft on 2026-09-22 21:45:00 UTC. That observation was 2.6 ft below its 7 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
4.40 ft
Streamflow
268 cfs
Minor flooding here begins at 7 ft, with major flooding at 13 ft. The highest crest on record was 13.05 ft on Wed, Feb 3, 1982.
Flood forecast
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 6 ft | 1.6 ft below |
| Minor flood | 7 ft | 2.6 ft below |
| Moderate flood | 11 ft | 6.6 ft below |
| Major flood | 13 ft | 8.6 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 13.05 ft | 1982-02-03 |
| 12.81 ft | 1990-03-17 |
| 12.54 ft | 1961-02-21 |
| 12.5 ft | 2009-09-22 |
| 12.3 ft | 1983-12-06 |
Last 7 days
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Johns Creek at Buice Road, near Warsaw, GA | 4.1 mi | Fulton County |
| Johns Creek at State Bridge Road, near Warsaw, GA | 4.2 mi | Fulton County |
| Chattahoochee River above Roswell, GA | 5.2 mi | Fulton County |
| Big Creek below Hog Wallow Creek at Roswell, GA | 5.3 mi | Fulton County |
| Chattahoochee River near Norcross, GA | 5.3 mi | Gwinnett County |
Get a flood alert for this gauge
Free email alerts when this gauge approaches flood stage are coming soon. Leave your email and you'll be first in line.
One email when alerts launch, then only flood notifications. No spam, unsubscribe anytime.
Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.