Chattahoochee River below Morgan Falls Dam near Roswell, GA
River level and flood forecast · Fulton County
Normal811.5 ftas of Mon 4:45 PM
The river is 9.5 ft below flood stage (821 ft).
Flow: 1,380 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 7 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 826 ft |
| Moderate flood stage | 823 ft |
| Flood stage | 821 ft |
| Action stage | 819 ft |
| Record crest (September 22, 2009) | 827.01 ft |
What floods at each level
From the National Weather Service, highest first.
- 827 ftRecord flooding occurs with numerous evacuations downstream from the gage at Morgan Falls Dam. Extensive damage occurs to homes on Columns Drive in Cobb County and the road is under several feet of water. Widespread flood damage affects many homes on Edgewater Drive...Ferry Landing...River Chase Circle...River Glen Trace and Winterthur Drive in Fulton County. Most of the Chattahoochee River National Recreation Area will be under several feet of water. This will be similar to the September 2009 flood event.
- 826 ftMajor flooding begins and causes widespread inundation and evacuations downstream from the gage at Morgan Falls Dam. Extensive damage occurs to homes on Columns Drive in Cobb County and the road is covered with a few feet of water. Flood waters affect many homes on Edgewater Drive...Ferry Landing...River Chase Circle...River Glen Trace and Winterthur Drive in Fulton County. Large portions of the Chattahoochee River National Recreation Area will be under several feet of water.
- 825 ftSignificant flooding occurs downstream from the gage at Morgan Falls Dam. This affects homes on Columns Drive in Cobb County and the water will cover portions of the road near Sope Creek. Flood waters begin to affect several homes on Edgewater Drive...Ferry Landing...River Chase Circle...River Glen Trace and Winterthur Drive in Fulton County. Some evacuations will be likely. Large portions of the Chattahoochee River National Recreation Area will be under several feet of water.
- 823 ftModerate flooding begins and expands further into the residential yards downstream from the gage at Morgan Falls Dam. This affects homes on Columns Drive in Cobb County and the water will begin to cover the road near Sope Creek. The water will begin to reach the foundations of homes on Edgewater Drive...Ferry Landing...River Chase Circle...River Glen Trace and Winterthur Drive in Fulton County. Large portions of the Chattahoochee River National Recreation Area will be under a few feet of water.
- 822 ftMinor flooding continues of residential yards downstream from the gage at Morgan Falls Dam. This will affect homes on Columns Drive in Cobb County and the water will begin to rise up on the concrete bridge over Sope Creek. Minor flooding will expand in the yards of homes on Edgewater Drive...Ferry Landing...River Chase Circle...River Glen Trace and Winterthur Drive in Fulton County. Portions of the Chattahoochee River National Recreation Area and Atlanta Country Club Golf Course will have minor flooding.
- 821 ftFlood stage is reached. Minor flooding of residential yards occurs downstream from the gage at Morgan Falls Dam. This will affect homes on Columns Drive in Cobb County and the water will reach the bottom of the bridge over Sope Creek. Minor flooding will also affect the yards of homes on Edgewater Drive...Ferry Landing...River Chase Circle...River Glen Trace and Winterthur Drive in Fulton County. Portions of the Chattahoochee River National Recreation Area will have minor flooding.
- 819 ftBankfull conditions are reached downstream from the gage at Morgan Falls Dam. Water begins to flow into low areas of the flood plain. This will affect residential yards of homes on Columns Drive in Cobb County...and Edgewater Drive...Ferry Landing...River Chase Circle...River Glen Trace and Winterthur Drive in Fulton County. Low areas of the Chattahoochee River National Recreation Area will begin to flood.
Highest crests on record
- 827.01 ft — September 22, 2009
- 824.71 ft — September 17, 2004
- 822.59 ft — September 21, 2009
- 820.93 ft — March 6, 2003
- 820.56 ft — October 12, 2009
Recent crests: 819.12 ft (May 19, 2013) · 820.56 ft (October 12, 2009) · 827.01 ft (September 22, 2009) · 822.59 ft (September 21, 2009) · 819.28 ft (July 16, 2005)
Up and down the river, and nearby
- UpstreamChattahoochee River above Roswell, GA
- DownstreamChattahoochee River at Powers Ferry + I-285 near Atlanta, GA
- Willeo Creek at GA 120 near Roswell, GA
- Sope Creek at Lower Roswell Road near Marietta, GA
- Big Creek below Hog Wallow at Roswell, GA
- Sewell Mill Creek at GA 120 near Marietta, GA
- Nancy Creek at Johnson Ferry Road near Chamblee, GA
- Rottenwood Creek at Interstate North Parkway near Smyrna, GA
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (MGFG1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.