Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of Spring 2024. Existing AHPS content and features will be preserved and expanded within NWPS. The NWS is now accepting feedback on NWPS. Please visit https://www.weather.gov/owp/operations for more information.

Experimental National Water Center Products: Flood Inundation Mapping services are now available for 10% of the U.S. population. Please visit https://www.weather.gov/owp/operations for more information. The National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via the URL above, as described in the StoryMap here.

Weather Forecast Office Peachtree City/Atlanta, GA

Southeast River Forecast Center

Hydrograph

River at a Glance

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Printable Image About this graph Tabular Data (UTC) Tabular Data (EST) Datum: NAVD88 Metadata

NOTE: Automated gauge readings are now available, courtesy of the USGS. NOTE: Forecasts are not available for the Intrenchment Creek at Constitution Road near Atlanta. Only observed stages are available for this point.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Flood Categories (in feet) Major Flood Stage: 16 Moderate Flood Stage: 13 Flood Stage: 11 Action Stage: 9 Low Stage (in feet): 0 Historic Crests (1) 14.23 ft on 09/16/2004 (2) 13.85 ft on 05/06/2003 (3) 13.41 ft on 10/11/2020 (4) 13.33 ft on 12/24/2015 (5) 12.51 ft on 07/11/2005 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 12.04 ft on 06/27/2022 (2) 11.82 ft on 04/05/2022 (3) 11.80 ft on 12/30/2021 (4) 11.80 ft on 08/17/2021 (5) 12.16 ft on 07/23/2021 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 1.92 ft on 09/10/2007 For more information on your flood risk go to www.floodsmart.gov. Show FEMA's National Flood Hazard Layers FEMA's National Flood Hazard Layers not showing? Why aren't the FEMA National Flood Hazard Layers showing on the ESRI Map? Possible reasons: There are no FEMA National Flood Hazard Layers for the location which you are viewing on ESRI Maps. The FEMA Web Mapping Service (WMS) is down. Note: Your zoom level may have changed. ESRI's zoom levels must be between 14 and 16 to show National Flood Hazard layers.

Zoom Level:16 Legend FEMA Layer Gauge Location Disclaimer Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.

Flood Impacts & Photos

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16	Major flooding begins. Widespread inundation flooding occurs in the woodlands upstream and downstream from the gage on Constitution Road. Around two feet of water will cover portions of Constitution Road and will likely cause extensive erosion to the banks as the water flow hits the bridge.
15	Significant flooding expands into the woodlands upstream and downstream from the gage on Constitution Road. Around one foot of water will begin to cover portions of Constitution Road and will likely cause extensive erosion to the banks as the water flow hits the bridge.
14	Moderate flooding continues to expand into the woodlands upstream and downstream from the gage on Constitution Road. The water level will begin to cover portions of Constitution Road and will likely cause extensive erosion to the banks as the water flow hits the bridge.
13	Moderate flooding begins. Significant flooding will expand into the woodlands upstream and downstream from the gage at Constitution Road. The water level will be close to the bottom of the bridge.
11	Flood stage is reached. Minor flooding will occur in the woodlands and natural flood plain of the creek upstream and downstream from the gage at Constitution Road.
9	Bankfull conditions are reached along the creek upstream and downstream from the gage at Constitution Road.

About This Location

Latitude: 33.689028° N, Longitude: 84.330111° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 11 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps Vertical Datum Elevation (gauge height = 0) Elevation (gauge height = flood stage) Elevation information source NAVD88 771.48 ft 782.48 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks Other Not Available Not Available   Current/Historical Observations: U.S. Geological Survey (USGS) Data and Site Info for Constitution Road near Atlanta

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Inundation Mapping Locations Spring Flood Outlook USGS Georgia

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management WFO FFC Additional Links Google Earth Gage Locations Snow Information

Collaborative Agencies The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here. NWS Information National Weather Service Peachtree City/Atlanta Weather Forecast Office 4 Falcon Drive Peachtree City, GA 30269 (770) 486-1133 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:30 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities