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Hydrograph River at a Glance Download
Big Creek near Cumming Stage (ft)Flow (kcfs)Highest Observation: 1.45 ft at 9:00AM May 06, 2021Highest Observation: 1.45 ft at 9:15AM May 06, 2021Highest Observation: 1.45 ft at 9:30AM May 06, 2021Observed: 1.44 ft at 9:45AM May 06, 2021Observed: 1.44 ft at 10:00AM May 06, 2021Observed: 1.43 ft at 10:15AM May 06, 2021Observed: 1.42 ft at 10:30AM May 06, 2021Observed: 1.43 ft at 10:45AM May 06, 2021Observed: 1.42 ft at 11:00AM May 06, 2021Observed: 1.44 ft at 11:15AM May 06, 2021Observed: 1.41 ft at 11:30AM May 06, 2021Observed: 1.41 ft at 11:45AM May 06, 2021Observed: 1.41 ft at 12:00PM May 06, 2021Observed: 1.41 ft at 12:15PM May 06, 2021Observed: 1.41 ft at 12:30PM May 06, 2021Observed: 1.42 ft at 12:45PM May 06, 2021Observed: 1.4 ft at 1:00PM May 06, 2021Observed: 1.4 ft at 1:15PM May 06, 2021Observed: 1.4 ft at 1:30PM May 06, 2021Observed: 1.41 ft at 1:45PM May 06, 2021Observed: 1.39 ft at 2:00PM May 06, 2021Observed: 1.4 ft at 2:15PM May 06, 2021Observed: 1.39 ft at 2:30PM May 06, 2021Observed: 1.4 ft at 2:45PM May 06, 2021Observed: 1.38 ft at 3:00PM May 06, 2021Observed: 1.37 ft at 3:15PM May 06, 2021Observed: 1.37 ft at 3:30PM May 06, 2021Observed: 1.35 ft at 3:45PM May 06, 2021Observed: 1.37 ft at 4:00PM May 06, 2021Observed: 1.35 ft at 4:15PM May 06, 2021Observed: 1.36 ft at 4:30PM May 06, 2021Observed: 1.34 ft at 4:45PM May 06, 2021Observed: 1.35 ft at 5:00PM May 06, 2021Observed: 1.33 ft at 5:15PM May 06, 2021Observed: 1.33 ft at 5:30PM May 06, 2021Observed: 1.32 ft at 5:45PM May 06, 2021Observed: 1.33 ft at 6:00PM May 06, 2021Observed: 1.32 ft at 6:15PM May 06, 2021Observed: 1.31 ft at 6:30PM May 06, 2021Observed: 1.29 ft at 6:45PM May 06, 2021Observed: 1.29 ft at 7:00PM May 06, 2021Observed: 1.3 ft at 7:15PM May 06, 2021Observed: 1.29 ft at 7:30PM May 06, 2021Observed: 1.29 ft at 7:45PM May 06, 2021Observed: 1.27 ft at 8:15PM May 06, 2021Observed: 1.27 ft at 8:30PM May 06, 2021Observed: 1.27 ft at 8:45PM May 06, 2021Observed: 1.26 ft at 9:00PM May 06, 2021Observed: 1.27 ft at 9:15PM May 06, 2021Observed: 1.27 ft at 9:30PM May 06, 2021Observed: 1.25 ft at 9:45PM May 06, 2021Observed: 1.25 ft at 10:00PM May 06, 2021Observed: 1.24 ft at 10:15PM May 06, 2021Observed: 1.26 ft at 10:30PM May 06, 2021Observed: 1.25 ft at 10:45PM May 06, 2021Observed: 1.25 ft at 11:00PM May 06, 2021Observed: 1.25 ft at 11:15PM May 06, 2021Observed: 1.24 ft at 11:30PM May 06, 2021Observed: 1.25 ft at 11:45PM May 06, 2021Observed: 1.24 ft at 12:00AM May 07, 2021Observed: 1.25 ft at 12:15AM May 07, 2021Observed: 1.26 ft at 12:30AM May 07, 2021Observed: 1.24 ft at 12:45AM May 07, 2021Observed: 1.25 ft at 1:00AM May 07, 2021Observed: 1.23 ft at 1:15AM May 07, 2021Observed: 1.22 ft at 1:30AM May 07, 2021Observed: 1.21 ft at 1:45AM May 07, 2021Observed: 1.21 ft at 2:00AM May 07, 2021Observed: 1.22 ft at 2:15AM May 07, 2021Observed: 1.21 ft at 2:30AM May 07, 2021Observed: 1.21 ft at 2:45AM May 07, 2021Observed: 1.21 ft at 3:00AM May 07, 2021Observed: 1.21 ft at 3:15AM May 07, 2021Observed: 1.2 ft at 3:30AM May 07, 2021Observed: 1.21 ft at 3:45AM May 07, 2021Observed: 1.21 ft at 4:00AM May 07, 2021Observed: 1.19 ft at 4:15AM May 07, 2021Observed: 1.19 ft at 4:30AM May 07, 2021Observed: 1.2 ft at 4:45AM May 07, 2021Observed: 1.18 ft at 5:00AM May 07, 2021Observed: 1.18 ft at 5:15AM May 07, 2021Observed: 1.18 ft at 5:30AM May 07, 2021Observed: 1.19 ft at 5:45AM May 07, 2021Observed: 1.18 ft at 6:00AM May 07, 2021Observed: 1.18 ft at 6:15AM May 07, 2021Observed: 1.18 ft at 6:30AM May 07, 2021Observed: 1.18 ft at 6:45AM May 07, 2021Observed: 1.17 ft at 7:00AM May 07, 2021Observed: 1.17 ft at 7:15AM May 07, 2021Observed: 1.17 ft at 7:30AM May 07, 2021Observed: 1.17 ft at 7:45AM May 07, 2021Observed: 1.17 ft at 8:00AM May 07, 2021Observed: 1.17 ft at 8:15AM May 07, 2021Observed: 1.17 ft at 8:30AM May 07, 2021Observed: 1.16 ft at 8:45AM May 07, 2021Observed: 1.16 ft at 9:00AM May 07, 2021Observed: 1.17 ft at 9:15AM May 07, 2021Observed: 1.15 ft at 9:30AM May 07, 2021Observed: 1.15 ft at 9:45AM May 07, 2021Observed: 1.16 ft at 10:00AM May 07, 2021Observed: 1.15 ft at 10:15AM May 07, 2021Observed: 1.15 ft at 10:30AM May 07, 2021Observed: 1.15 ft at 10:45AM May 07, 2021Observed: 1.15 ft at 11:00AM May 07, 2021Observed: 1.15 ft at 11:15AM May 07, 2021Observed: 1.16 ft at 11:30AM May 07, 2021Observed: 1.15 ft at 11:45AM May 07, 2021Observed: 1.15 ft at 12:00PM May 07, 2021Observed: 1.16 ft at 12:15PM May 07, 2021Observed: 1.16 ft at 12:30PM May 07, 2021Observed: 1.16 ft at 12:45PM May 07, 2021Observed: 1.17 ft at 1:00PM May 07, 2021Observed: 1.16 ft at 1:15PM May 07, 2021Observed: 1.16 ft at 1:30PM May 07, 2021Observed: 1.17 ft at 1:45PM May 07, 2021Observed: 1.16 ft at 2:00PM May 07, 2021Observed: 1.16 ft at 2:15PM May 07, 2021Observed: 1.17 ft at 2:30PM May 07, 2021Observed: 1.16 ft at 2:45PM May 07, 2021Observed: 1.16 ft at 3:00PM May 07, 2021Observed: 1.16 ft at 3:15PM May 07, 2021Observed: 1.15 ft at 3:30PM May 07, 2021Observed: 1.15 ft at 3:45PM May 07, 2021Observed: 1.15 ft at 4:00PM May 07, 2021Observed: 1.14 ft at 4:15PM May 07, 2021Observed: 1.14 ft at 4:30PM May 07, 2021Observed: 1.16 ft at 4:45PM May 07, 2021Observed: 1.14 ft at 5:00PM May 07, 2021Observed: 1.13 ft at 5:15PM May 07, 2021Observed: 1.13 ft at 5:30PM May 07, 2021Observed: 1.13 ft at 5:45PM May 07, 2021Observed: 1.12 ft at 6:00PM May 07, 2021Observed: 1.12 ft at 6:15PM May 07, 2021Observed: 1.12 ft at 6:30PM May 07, 2021Observed: 1.12 ft at 6:45PM May 07, 2021Observed: 1.11 ft at 7:00PM May 07, 2021Observed: 1.12 ft at 7:15PM May 07, 2021Observed: 1.11 ft at 7:30PM May 07, 2021Observed: 1.11 ft at 7:45PM May 07, 2021Observed: 1.11 ft at 8:00PM May 07, 2021Observed: 1.11 ft at 8:15PM May 07, 2021Observed: 1.1 ft at 8:30PM May 07, 2021Observed: 1.1 ft at 8:45PM May 07, 2021Observed: 1.1 ft at 9:00PM May 07, 2021Observed: 1.1 ft at 9:15PM May 07, 2021Observed: 1.09 ft at 9:30PM May 07, 2021Observed: 1.09 ft at 9:45PM May 07, 2021Observed: 1.09 ft at 10:00PM May 07, 2021Observed: 1.09 ft at 10:15PM May 07, 2021Observed: 1.09 ft at 10:30PM May 07, 2021Observed: 1.08 ft at 10:45PM May 07, 2021Observed: 1.08 ft at 11:00PM May 07, 2021Observed: 1.08 ft at 11:15PM May 07, 2021Observed: 1.08 ft at 11:30PM May 07, 2021Observed: 1.09 ft at 11:45PM May 07, 2021Observed: 1.07 ft at 12:00AM May 08, 2021Observed: 1.08 ft at 12:15AM May 08, 2021Observed: 1.09 ft at 12:30AM May 08, 2021Observed: 1.07 ft at 12:45AM May 08, 2021Observed: 1.08 ft at 1:00AM May 08, 2021Observed: 1.07 ft at 1:15AM May 08, 2021Observed: 1.07 ft at 1:30AM May 08, 2021Observed: 1.07 ft at 1:45AM May 08, 2021Observed: 1.07 ft at 2:00AM May 08, 2021Observed: 1.07 ft at 2:15AM May 08, 2021Observed: 1.07 ft at 2:30AM May 08, 2021Observed: 1.07 ft at 2:45AM May 08, 2021Observed: 1.06 ft at 3:00AM May 08, 2021Observed: 1.06 ft at 3:15AM May 08, 2021Observed: 1.06 ft at 3:30AM May 08, 2021Observed: 1.07 ft at 3:45AM May 08, 2021Observed: 1.06 ft at 4:00AM May 08, 2021Observed: 1.06 ft at 4:15AM May 08, 2021Observed: 1.06 ft at 4:30AM May 08, 2021Observed: 1.05 ft at 4:45AM May 08, 2021Observed: 1.05 ft at 5:00AM May 08, 2021Observed: 1.05 ft at 5:15AM May 08, 2021Observed: 1.06 ft at 5:30AM May 08, 2021Observed: 1.05 ft at 5:45AM May 08, 2021Observed: 1.04 ft at 6:00AM May 08, 2021Observed: 1.05 ft at 6:15AM May 08, 2021Observed: 1.05 ft at 6:30AM May 08, 2021Observed: 1.05 ft at 6:45AM May 08, 2021Observed: 1.06 ft at 7:00AM May 08, 2021Observed: 1.05 ft at 7:15AM May 08, 2021Observed: 1.05 ft at 7:30AM May 08, 2021Observed: 1.05 ft at 7:45AM May 08, 2021Observed: 1.05 ft at 8:00AM May 08, 2021Observed: 1.05 ft at 8:15AM May 08, 2021Observed: 1.05 ft at 8:30AM May 08, 2021Observed: 1.05 ft at 8:45AM May 08, 2021Observed: 1.05 ft at 9:00AM May 08, 2021Observed: 1.04 ft at 9:15AM May 08, 2021Observed: 1.04 ft at 9:30AM May 08, 2021Observed: 1.04 ft at 9:45AM May 08, 2021Observed: 1.04 ft at 10:00AM May 08, 2021Observed: 1.04 ft at 10:15AM May 08, 2021Observed: 1.04 ft at 10:30AM May 08, 2021Observed: 1.03 ft at 10:45AM May 08, 2021Observed: 1.04 ft at 11:00AM May 08, 2021Observed: 1.04 ft at 11:15AM May 08, 2021Observed: 1.04 ft at 11:30AM May 08, 2021Observed: 1.04 ft at 11:45AM May 08, 2021Observed: 1.04 ft at 12:00PM May 08, 2021Observed: 1.04 ft at 12:15PM May 08, 2021Observed: 1.04 ft at 12:30PM May 08, 2021Observed: 1.05 ft at 12:45PM May 08, 2021Observed: 1.05 ft at 1:00PM May 08, 2021Observed: 1.04 ft at 1:15PM May 08, 2021Observed: 1.05 ft at 1:30PM May 08, 2021Observed: 1.05 ft at 1:45PM May 08, 2021Observed: 1.05 ft at 2:00PM May 08, 2021Observed: 1.05 ft at 2:15PM May 08, 2021Observed: 1.05 ft at 2:30PM May 08, 2021Observed: 1.06 ft at 2:45PM May 08, 2021Observed: 1.06 ft at 3:00PM May 08, 2021Observed: 1.06 ft at 3:15PM May 08, 2021Observed: 1.06 ft at 3:30PM May 08, 2021Observed: 1.08 ft at 3:45PM May 08, 2021Observed: 1.06 ft at 4:00PM May 08, 2021Observed: 1.06 ft at 4:15PM May 08, 2021Observed: 1.07 ft at 4:30PM May 08, 2021Observed: 1.06 ft at 4:45PM May 08, 2021Observed: 1.05 ft at 5:00PM May 08, 2021Observed: 1.06 ft at 5:15PM May 08, 2021Observed: 1.06 ft at 5:30PM May 08, 2021Observed: 1.04 ft at 5:45PM May 08, 2021Observed: 1.04 ft at 6:00PM May 08, 2021Observed: 1.04 ft at 6:15PM May 08, 2021Observed: 1.03 ft at 6:30PM May 08, 2021Observed: 1.03 ft at 6:45PM May 08, 2021Observed: 1.03 ft at 7:00PM May 08, 2021Observed: 1.03 ft at 7:15PM May 08, 2021Observed: 1.03 ft at 7:30PM May 08, 2021Observed: 1.02 ft at 7:45PM May 08, 2021Observed: 1.02 ft at 8:00PM May 08, 2021Observed: 1.02 ft at 8:15PM May 08, 2021Observed: 1.01 ft at 8:30PM May 08, 2021Observed: 1.02 ft at 8:45PM May 08, 2021Observed: 1.01 ft at 9:00PM May 08, 2021Observed: 1.02 ft at 9:15PM May 08, 2021Observed: 1.01 ft at 9:30PM May 08, 2021Observed: 1.01 ft at 9:45PM May 08, 2021Observed: 1.01 ft at 10:00PM May 08, 2021Observed: 1.01 ft at 10:15PM May 08, 2021Observed: 1.01 ft at 10:30PM May 08, 2021Observed: 1 ft at 10:45PM May 08, 2021Observed: 1 ft at 11:00PM May 08, 2021Observed: 1.01 ft at 11:15PM May 08, 2021Observed: 1.01 ft at 11:30PM May 08, 2021Observed: 1.01 ft at 11:45PM May 08, 2021Observed: 1 ft at 12:00AM May 09, 2021Observed: 1.01 ft at 12:15AM May 09, 2021Observed: 1.01 ft at 12:30AM May 09, 2021Observed: 1 ft at 12:45AM May 09, 2021Observed: 1 ft at 1:00AM May 09, 2021Observed: 1.01 ft at 1:15AM May 09, 2021Observed: 1 ft at 1:30AM May 09, 2021Observed: 1 ft at 1:45AM May 09, 2021Observed: 1 ft at 2:00AM May 09, 2021Observed: 1 ft at 2:15AM May 09, 2021Observed: 1 ft at 2:30AM May 09, 2021Observed: 1 ft at 2:45AM May 09, 2021Observed: 1 ft at 3:00AM May 09, 2021Observed: 1 ft at 3:15AM May 09, 2021Observed: 1 ft at 3:30AM May 09, 2021Observed: 1 ft at 3:45AM May 09, 2021Observed: 1 ft at 4:00AM May 09, 2021Observed: 1 ft at 4:15AM May 09, 2021Observed: 0.99 ft at 4:30AM May 09, 2021Observed: 1 ft at 4:45AM May 09, 2021Observed: 0.99 ft at 5:00AM May 09, 2021Observed: 0.99 ft at 5:15AM May 09, 2021Observed: 0.99 ft at 5:30AM May 09, 2021Observed: 1 ft at 5:45AM May 09, 2021Observed: 0.98 ft at 6:00AM May 09, 2021Observed: 0.99 ft at 6:15AM May 09, 2021Observed: 0.98 ft at 6:30AM May 09, 2021Observed: 0.99 ft at 6:45AM May 09, 2021Observed: 0.98 ft at 7:00AM May 09, 2021Observed: 0.98 ft at 7:15AM May 09, 2021Observed: 0.98 ft at 7:30AM May 09, 2021Observed: 0.98 ft at 7:45AM May 09, 2021USGS--Water Resources of the United StatesCMGG1(plotting HGIRG) Graph Created (8:49AM May 9, 2021)ObservedLatest observed value: 0.98 ft at 7:45 AM EDT 9-May-2021. Flood Stage is 6 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Automated gauge readings are now available, courtesy of the USGS.

NOTE: Forecasts for the Big Creek near Cumming are issued as needed during times of high water, but are not routinely available.

Return to Area Map
Downstream Gauge Downstream Gauge - near Alpharetta
Flood Categories (in feet)
Major Flood Stage: 15
Moderate Flood Stage: 12
Flood Stage: 6
Action Stage: 4
Low Stage (in feet): -9999

Historic Crests
(1) 10.43 ft on 09/22/2009
(2) 9.15 ft on 08/01/2013
(3) 9.02 ft on 10/11/2020
(4) 8.86 ft on 01/04/2015
(5) 8.80 ft on 02/06/2020
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 6.15 ft on 01/26/2021
(2) 7.68 ft on 01/02/2021
(3) 6.51 ft on 11/12/2020
(4) 6.15 ft on 10/29/2020
(5) 9.02 ft on 10/11/2020
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.24 ft on 09/16/2016
(2) 0.58 ft on 10/03/2007
(3) 0.59 ft on 10/02/2007

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
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 Collapse
If you notice any errors in the below information, please contact our Webmaster
14 Moderate flooding continues with significant flooding expanding further into the woodlands and pasture near the creek. The sidewalk and boardwalk of the Big Creek Greenway will be completely flooded out with several feet of water. Around two feet of water will be flowing over portions of the Atlanta Highway. This will likely cause a washout of the road near the culvert. The water level will also be reaching the bottom of the bridge on Majors Road.
12 Moderate flooding begins with significant flooding expanding further into the woodlands and pasture near the creek. The sidewalk and boardwalk of the Big Creek Greenway will be completely flooded out with several feet of water. The water will begin flowing over portions of the Atlanta Highway. Extensive erosion of the banks near the culvert may cause a washout.
10 Minor flooding continues to expand further into the woodlands and pasture near the creek. The sidewalk and boardwalk of the Big Creek Greenway will be completely flooded out. The areas under the Georgia 400 Highway and McFarland Road will be covered with around five feet of water. A portion of the sidewalk under Majors Road will be covered with around six feet of water. Maximum flow will be reached through the culvert at Atlanta Highway and erosion of the banks near the bridge will begin.
8 Minor flooding will expand into the natural flood plain of the creek upstream and downstream from the gage at Atlanta Highway or Georgia Highway 9. Most of the sidewalk and boardwalk of the Big Creek Greenway will be under a foot or two of water. The areas under the Georgia 400 Highway and McFarland Road will be covered with around three feet of water. A portion of the sidewalk under Majors Road will be covered with around four feet of water.
7 Minor flooding continues to expand into the natural flood plain of the creek upstream and downstream from the gage at Atlanta Highway or Georgia Highway 9. Large portions of the sidewalk and boardwalk of the Big Creek Greenway will be flooded. The areas under the Georgia 400 Highway and McFarland Road will be covered with around two feet of water. A portion of the sidewalk under Majors Road will be covered with around 3 feet of water.
6 Flood stage is reached. Minor flooding will expand into the natural flood plain of the creek upstream and downstream from the gage at Atlanta Highway or Georgia Highway 9. Large portions of the sidewalk and boardwalk of the Big Creek Greenway will begin to flood. The areas under the Georgia 400 Highway and McFarland Road will be covered with around one foot of water. A portion of the sidewalk under Majors Road will be covered with around two feet of water.
5 Bankfull conditions continue to expand into low lying areas of the creek upstream and downstream from the gage at Atlanta Highway or Georgia Highway 9. Portions of the sidewalk on the Big Creek Greenway under the Georgia 400 Highway and McFarland Road begin to flood. A portion of the sidewalk under Majors Road will be covered with around one foot of water. The water level will begin reaching the bottom of the boardwalk along several sections of the Greenway.
4 Bankfull conditions are reached in some low lying areas of the creek upstream and downstream from the gage at Atlanta Highway or Georgia Highway 9. A small portion of the sidewalk on the Big Creek Greenway under Majors Road will begin to flood.
About This Location Collapse

Latitude: 34.155833° N, Longitude: 84.218611° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 6 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 1007.8 ft 1013.8 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:

Additional Information Collapse
Bankfull and flood stage levels have been set primarily due to the impacts on the Big Creek Greenway.
Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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
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Page last modified: 2-Nov-2020 7:30 PM
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