TidalMapChattahoochee River at GA 280, near Atlanta, GA Water Level Today
NWS river forecast
| When | Stage | Flow |
|---|
Forecast from the NOAA National Water Prediction Service. Issued a few times a day and only while a forecast is active. Not for navigation.
Last 30 days
About this gauge
USGS gauge 02336490 sits on the Chattahoochee River and reads everything draining 1,590 square miles of the Middle Chattahoochee-Lake Harding basin. Its datum sits 737 feet above sea level NAVD88. Daily flow has been on record here since 1981, 45 years of it.
Where this gauge sits in the drainage
Eight gauged sites sit upstream of here. The closest is Chattahoochee River at Atlanta, GA, reading 1,450 square miles. This gauge adds the 140 square miles that drain in between. Downstream the next reading comes from Chattahoochee River near Fairburn, GA at 2,060 square miles, so what passes this gauge is about 77% of the water measured there. Water passing here goes on to Chattahoochee River above Bear Creek, near Rico, GA and Chattahoochee River near Whitesburg, GA.
Normal flows here
The Chattahoochee River runs a median of 1,855 cfs at this gauge across 45 years of record. March is the fullest month at a median 2,360 cfs, and October the leanest at 1,560 cfs. The highest daily mean on record is 34,000 cfs in 2009, and the lowest is 768 cfs in 2002.
| Month | Median flow | Share of annual median |
|---|---|---|
| Jan | 1,950 cfs | 105% |
| Feb | 2,190 cfs | 118% |
| Mar | 2,360 cfs | 127% |
| Apr | 2,045 cfs | 110% |
| May | 2,100 cfs | 113% |
| Jun | 1,845 cfs | 99% |
| Jul | 1,830 cfs | 99% |
| Aug | 1,860 cfs | 100% |
| Sep | 1,630 cfs | 88% |
| Oct | 1,560 cfs | 84% |
| Nov | 1,670 cfs | 90% |
| Dec | 1,750 cfs | 94% |
Medians from the USGS daily-statistics record, 1981 to 2026. A month at 100% is running at its own long-term median.
Flood stages and record crests
The Chattahoochee River reaches flood stage at this gauge at 24 feet. NWS starts watching it at 22 feet. The highest crest on record is 36 feet, in September 2009.
| Category | Gage height |
|---|---|
| Action | 22 ft |
| Minor flooding | 24 ft |
| Moderate flooding | 28 ft |
| Major flooding | 31 ft |
| When | Crest |
|---|---|
| September 2009 | 36 ft |
| September 2024 | 32.2 ft |
| March 1990 | 31.5 ft |
| April 1979 | 30.7 ft |
| September 2004 | 30.3 ft |
Flood categories and crest history from the NOAA National Water Prediction Service, gauge CHAG1. Stages are gage height, not depth. Not for navigation.
Dams near this gauge
The Army Corps' Morgan Falls Dam sits 12 miles from this gauge and its releases set what this gauge reads. The Corps publishes no release schedule for this project; its last observed release and elevations load below.
- Morgan Falls Dam 12 miles
Nearby river gauges
- Proctor Creek at Jackson Parkway, at Atlanta, GA
- Woodall Creek at Defoors Ferry Rd, at Atlanta, GA
- Nickajack Creek at US 78/278, near Mableton, GA
- Nancy Creek at West Wesley Road, at Atlanta, GA
- Chattahoochee River at Atlanta, GA
- Chattahoochee River at US 41, at Atlanta, GA
- Peachtree Creek at Atlanta, GA
- Rottenwood Creek at Interstate N Pkwy, near Smyrna, GA
- Chatt River at Powers Fy and I-285 near Atlanta, GA
- Nancy Creek at Rickenbacker Drive, at Atlanta, GA
- Utoy Creek at Great Southwest Pkwy near Atlanta, GA
- N.f Peachtree Creek, Buford Hwy, near Atlanta, GA
Live streamflow and gage height: USGS gauge 02336490. Percentile context computed against the gauge's period of record. Not for navigation.
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