Olley Creek at Clay Road near Austell, GA
River level and flood forecast · Cobb County
Normal2.7 ftas of Mon 3:45 PM
The river is 9.3 ft below flood stage (12 ft).
Flow: 9 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 | 18 ft |
| Moderate flood stage | 15 ft |
| Flood stage | 12 ft |
| Action stage | 9 ft |
| Record crest (September 22, 2009) | 27.4 ft |
What floods at each level
From the National Weather Service, highest first.
- 20 ftMajor flooding continues with widespread inundation of the woodlands upstream and downstream from Clay Road. Flood waters are 3 to 4 feet deep over portions of Clay and Flint Hill Roads. Numerous homes will be flooded with up to two feet of water on portions of Clay and Flint Hill Roads...Madison Point Circle...Nature Trail...Chimney Hill Place...Parkside Court and Park Avenue.
- 18 ftMajor flooding begins. Widespread inundation flooding occurs into the woodlands upstream and downstream from the gage at Clay Road. Flood waters are 1 to 2 feet deep over portions of Clay and Flint Hill Roads. A barn...shed...auto repair shop and attached garage on the right bank will be flooded with 4 to 6 feet of water. The water begins to reach the foundations of homes on portions of Clay and Flint Hill Roads...Madison Point Circle...Nature Trail...Chimney Hill Place...Parkside Court and Park Avenue.
- 17 ftSignificant flooding expands further into the woodlands upstream and downstream from the gage at Clay Road. The water level hits the bridge and county officials will likely have it closed. A barn...shed...auto repair shop and attached garage on the right bank will be flooded with 3 to 5 feet of water. The backyards of homes on portions of Flint Hill Road...Madison Point Circle...Nature Trail...Parkside Court and Park Avenue will be flooded.
- 15 ftModerate flooding begins. Significant flooding expands into the woodlands upstream and downstream from the gage at Clay Road. The water level reaches the bottom of the bridge and county officials may close it. A barn...shed and auto repair shop and attached garage on the right bank will be flooded with 1 to 3 feet of water. The backyards of homes on portions of Flint Hill Road...Madison Point Circle...Nature Trail...Parkside Court and Park Avenue will be flooded.
- 14 ftMinor flooding continues to expand in the woodlands and natural flood plain upstream and downstream from the gage at Clay Road. A barn...shed and auto repair shop on the upstream and right bank of the creek from the gage will be flooded with two feet of water. The water level will reach the foundation of an attached garage to house on the right bank near the gage. The yards of homes on portions of Flint Hill Road...Madison Point Circle...Nature Trail...Parkside Court and Park Avenue will begin to flood.
- 12 ftFlood stage is reached. Minor flooding will occur in the woodlands and the natural flood plain upstream and downstream from the gage at Clay Road. The water level will reach the foundations of a barn...shed and auto repair shop on the upstream and right bank of the creek from the gage.
- 9 ftBankfull conditions are reached along the creek upstream and downstream from the gage at Clay Road.
Highest crests on record
- 27.4 ft — September 22, 2009
Recent crests: 27.4 ft (September 22, 2009)
Up and down the river, and nearby
- Sweetwater Creek near Northwest Austell, GA
- Noses Creek at Powder Springs Road near Powder Springs, GA
- Powder Springs Creek near Powder Springs, GA
- Sweetwater Creek near Austell, GA
- Sweetwater Creek at Brownsville Road near Powder Springs, GA
- Nickajack Creek at US Highway 78 and 278 near Mableton, GA
- Utoy Creek at Great Southwest Parkway near Atlanta, GA
- Sweetwater Creek below Austell, GA
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (OLYG1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.