Sewell Mill Creek at GA 120 near Marietta, GA
River level and flood forecast · Cobb County
Normal1.1 ftas of Mon 5:15 PM
The river is 9.9 ft below flood stage (11 ft).
Flow: 6 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 | 20 ft |
| Moderate flood stage | 16 ft |
| Flood stage | 11 ft |
| Action stage | 9 ft |
| Record crest (September 21, 2009) | 13.26 ft |
What floods at each level
From the National Weather Service, highest first.
- 14 ftMinor flooding continues to expand further into the residential yards and woodlands upstream and downstream from the gage on Roswell Road. The water will be from 3 to 6 feet deep in the East Cobb Park on the right bank of the creek. A portion of Robinson Road over the creek by Robinson Farms Drive will be flooded with at least 3 feet of water. The athletic field next to the creek off Robinson Road will be flooded with several feet of water.
- 13 ftMinor flooding continues to expand further into the residential yards and woodlands upstream and downstream from the gage on Roswell Road. The water will be from 2 to 5 feet deep in the East Cobb Park on the right bank of the creek. A portion of Robinson Road over the creek by Robinson Farms Drive will be flooded with at least 2 feet of water. The athletic field next to the creek off Robinson Road will be flooded with several feet of water.
- 12 ftMinor flooding continues of the residential yards and woodlands upstream and downstream from the gage on Roswell Road. The water will be from 1 to 4 feet deep in the East Cobb Park on the right bank of the creek. The portion of Robinson Road over the creek and by Robinson Farms Drive will be flooded with at least one foot of water. The athletic field next to the creek off Robinson Road will be flooded with a few feet of water.
- 11 ftFlood stage is reached. Minor flooding of residential yards and woodlands occurs upstream and downstream from the gage on Roswell Road. The water will be up to three feet deep in the lower portions of East Cobb Park on the right bank of the creek. The water level will begin to hit the Robinson Road bridge. The athletic field next to the creek off Robinson Road will begin to flood.
- 9 ftBankfull conditions are reached upstream and downstream from the gage on Roswell Road. Water begins to flow into low areas of East Cobb Park on the right bank of the creek.
Highest crests on record
- 13.26 ft — September 21, 2009
- 12.21 ft — July 12, 2012
- 11.32 ft — September 8, 2021
Recent crests: 11.32 ft (September 8, 2021) · 12.21 ft (July 12, 2012) · 13.26 ft (September 21, 2009)
Up and down the river, and nearby
- Sope Creek at Lower Roswell Road near Marietta, GA
- Willeo Creek at GA 120 near Roswell, GA
- Chattahoochee River below Morgan Falls Dam near Roswell, GA
- Chattahoochee River at Powers Ferry + I-285 near Atlanta, GA
- Rottenwood Creek at Interstate North Parkway near Smyrna, GA
- Big Creek below Hog Wallow at Roswell, GA
- Noonday Creek Upstream of Chastain Meadows Parkway near Kennesaw, GA
- Noonday Creek at Hawkins Store Road near Blackwells, GA
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (SMCG1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.