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Hydrograph River at a Glance Download
Alcovy River above Covington Stage (ft)Flow (kcfs)Highest Observation: 3.32 ft at 9:30PM Oct 16, 2021Highest Observation: 3.32 ft at 9:45PM Oct 16, 2021Highest Observation: 3.32 ft at 10:00PM Oct 16, 2021Highest Observation: 3.32 ft at 10:15PM Oct 16, 2021Highest Observation: 3.32 ft at 10:30PM Oct 16, 2021Highest Observation: 3.32 ft at 10:45PM Oct 16, 2021Observed: 3.31 ft at 11:00PM Oct 16, 2021Highest Observation: 3.32 ft at 11:15PM Oct 16, 2021Highest Observation: 3.32 ft at 11:30PM Oct 16, 2021Highest Observation: 3.32 ft at 11:45PM Oct 16, 2021Observed: 3.31 ft at 12:00AM Oct 17, 2021Observed: 3.31 ft at 12:15AM Oct 17, 2021Observed: 3.3 ft at 12:30AM Oct 17, 2021Observed: 3.3 ft at 12:45AM Oct 17, 2021Observed: 3.3 ft at 1:00AM Oct 17, 2021Observed: 3.3 ft at 1:15AM Oct 17, 2021Observed: 3.3 ft at 1:30AM Oct 17, 2021Observed: 3.3 ft at 1:45AM Oct 17, 2021Observed: 3.3 ft at 2:00AM Oct 17, 2021Observed: 3.3 ft at 2:15AM Oct 17, 2021Observed: 3.3 ft at 2:30AM Oct 17, 2021Observed: 3.3 ft at 2:45AM Oct 17, 2021Observed: 3.3 ft at 3:00AM Oct 17, 2021Observed: 3.29 ft at 3:15AM Oct 17, 2021Observed: 3.29 ft at 3:30AM Oct 17, 2021Observed: 3.28 ft at 3:45AM Oct 17, 2021Observed: 3.29 ft at 4:00AM Oct 17, 2021Observed: 3.29 ft at 4:15AM Oct 17, 2021Observed: 3.28 ft at 4:30AM Oct 17, 2021Observed: 3.28 ft at 4:45AM Oct 17, 2021Observed: 3.28 ft at 5:00AM Oct 17, 2021Observed: 3.28 ft at 5:15AM Oct 17, 2021Observed: 3.28 ft at 5:30AM Oct 17, 2021Observed: 3.28 ft at 5:45AM Oct 17, 2021Observed: 3.27 ft at 6:00AM Oct 17, 2021Observed: 3.27 ft at 6:15AM Oct 17, 2021Observed: 3.27 ft at 6:30AM Oct 17, 2021Observed: 3.27 ft at 6:45AM Oct 17, 2021Observed: 3.27 ft at 7:00AM Oct 17, 2021Observed: 3.27 ft at 7:15AM Oct 17, 2021Observed: 3.26 ft at 7:30AM Oct 17, 2021Observed: 3.26 ft at 7:45AM Oct 17, 2021Observed: 3.26 ft at 8:00AM Oct 17, 2021Observed: 3.26 ft at 8:15AM Oct 17, 2021Observed: 3.26 ft at 8:30AM Oct 17, 2021Observed: 3.26 ft at 8:45AM Oct 17, 2021Observed: 3.26 ft at 9:00AM Oct 17, 2021Observed: 3.26 ft at 9:15AM Oct 17, 2021Observed: 3.26 ft at 9:30AM Oct 17, 2021Observed: 3.25 ft at 9:45AM Oct 17, 2021Observed: 3.25 ft at 10:00AM Oct 17, 2021Observed: 3.25 ft at 10:15AM Oct 17, 2021Observed: 3.25 ft at 10:30AM Oct 17, 2021Observed: 3.25 ft at 10:45AM Oct 17, 2021Observed: 3.24 ft at 11:00AM Oct 17, 2021Observed: 3.24 ft at 11:15AM Oct 17, 2021Observed: 3.24 ft at 11:30AM Oct 17, 2021Observed: 3.24 ft at 11:45AM Oct 17, 2021Observed: 3.24 ft at 12:00PM Oct 17, 2021Observed: 3.23 ft at 12:15PM Oct 17, 2021Observed: 3.23 ft at 12:30PM Oct 17, 2021Observed: 3.22 ft at 12:45PM Oct 17, 2021Observed: 3.22 ft at 1:00PM Oct 17, 2021Observed: 3.22 ft at 1:15PM Oct 17, 2021Observed: 3.22 ft at 1:30PM Oct 17, 2021Observed: 3.22 ft at 1:45PM Oct 17, 2021Observed: 3.21 ft at 2:00PM Oct 17, 2021Observed: 3.21 ft at 2:15PM Oct 17, 2021Observed: 3.21 ft at 2:30PM Oct 17, 2021Observed: 3.21 ft at 2:45PM Oct 17, 2021Observed: 3.2 ft at 3:00PM Oct 17, 2021Observed: 3.2 ft at 3:15PM Oct 17, 2021Observed: 3.19 ft at 3:30PM Oct 17, 2021Observed: 3.19 ft at 3:45PM Oct 17, 2021Observed: 3.19 ft at 4:00PM Oct 17, 2021Observed: 3.19 ft at 4:15PM Oct 17, 2021Observed: 3.19 ft at 4:30PM Oct 17, 2021Observed: 3.19 ft at 4:45PM Oct 17, 2021Observed: 3.18 ft at 5:00PM Oct 17, 2021Observed: 3.19 ft at 5:15PM Oct 17, 2021Observed: 3.18 ft at 5:30PM Oct 17, 2021Observed: 3.19 ft at 5:45PM Oct 17, 2021Observed: 3.18 ft at 6:00PM Oct 17, 2021Observed: 3.18 ft at 6:15PM Oct 17, 2021Observed: 3.18 ft at 6:30PM Oct 17, 2021Observed: 3.18 ft at 6:45PM Oct 17, 2021Observed: 3.18 ft at 7:00PM Oct 17, 2021Observed: 3.18 ft at 7:15PM Oct 17, 2021Observed: 3.18 ft at 7:30PM Oct 17, 2021Observed: 3.18 ft at 7:45PM Oct 17, 2021Observed: 3.18 ft at 8:00PM Oct 17, 2021Observed: 3.18 ft at 8:15PM Oct 17, 2021Observed: 3.18 ft at 8:30PM Oct 17, 2021Observed: 3.18 ft at 8:45PM Oct 17, 2021Observed: 3.18 ft at 9:00PM Oct 17, 2021Observed: 3.18 ft at 9:15PM Oct 17, 2021Observed: 3.18 ft at 9:30PM Oct 17, 2021Observed: 3.18 ft at 9:45PM Oct 17, 2021Observed: 3.18 ft at 10:00PM Oct 17, 2021Observed: 3.18 ft at 10:15PM Oct 17, 2021Observed: 3.18 ft at 10:30PM Oct 17, 2021Observed: 3.18 ft at 10:45PM Oct 17, 2021Observed: 3.18 ft at 11:00PM Oct 17, 2021Observed: 3.18 ft at 11:15PM Oct 17, 2021Observed: 3.18 ft at 11:30PM Oct 17, 2021Observed: 3.17 ft at 11:45PM Oct 17, 2021Observed: 3.17 ft at 12:00AM Oct 18, 2021Observed: 3.17 ft at 12:15AM Oct 18, 2021Observed: 3.17 ft at 12:30AM Oct 18, 2021Observed: 3.17 ft at 12:45AM Oct 18, 2021Observed: 3.17 ft at 1:00AM Oct 18, 2021Observed: 3.17 ft at 1:15AM Oct 18, 2021Observed: 3.17 ft at 1:30AM Oct 18, 2021Observed: 3.16 ft at 1:45AM Oct 18, 2021Observed: 3.16 ft at 2:00AM Oct 18, 2021Observed: 3.16 ft at 2:15AM Oct 18, 2021Observed: 3.17 ft at 2:30AM Oct 18, 2021Observed: 3.17 ft at 2:45AM Oct 18, 2021Observed: 3.17 ft at 3:00AM Oct 18, 2021Observed: 3.16 ft at 3:15AM Oct 18, 2021Observed: 3.16 ft at 3:30AM Oct 18, 2021Observed: 3.16 ft at 3:45AM Oct 18, 2021Observed: 3.16 ft at 4:00AM Oct 18, 2021Observed: 3.15 ft at 4:15AM Oct 18, 2021Observed: 3.16 ft at 4:30AM Oct 18, 2021Observed: 3.15 ft at 4:45AM Oct 18, 2021Observed: 3.15 ft at 5:00AM Oct 18, 2021Observed: 3.15 ft at 5:15AM Oct 18, 2021Observed: 3.15 ft at 5:30AM Oct 18, 2021Observed: 3.15 ft at 5:45AM Oct 18, 2021Observed: 3.15 ft at 6:00AM Oct 18, 2021Observed: 3.15 ft at 6:15AM Oct 18, 2021Observed: 3.15 ft at 6:30AM Oct 18, 2021Observed: 3.14 ft at 6:45AM Oct 18, 2021Observed: 3.15 ft at 7:00AM Oct 18, 2021Observed: 3.15 ft at 7:15AM Oct 18, 2021Observed: 3.15 ft at 7:30AM Oct 18, 2021Observed: 3.14 ft at 7:45AM Oct 18, 2021Observed: 3.14 ft at 8:00AM Oct 18, 2021Observed: 3.14 ft at 8:15AM Oct 18, 2021Observed: 3.14 ft at 8:30AM Oct 18, 2021Observed: 3.14 ft at 8:45AM Oct 18, 2021Observed: 3.13 ft at 9:00AM Oct 18, 2021Observed: 3.13 ft at 9:15AM Oct 18, 2021Observed: 3.13 ft at 9:30AM Oct 18, 2021Observed: 3.13 ft at 9:45AM Oct 18, 2021Observed: 3.13 ft at 10:00AM Oct 18, 2021Observed: 3.13 ft at 10:15AM Oct 18, 2021Observed: 3.13 ft at 10:30AM Oct 18, 2021Observed: 3.12 ft at 10:45AM Oct 18, 2021Observed: 3.12 ft at 11:00AM Oct 18, 2021Observed: 3.12 ft at 11:15AM Oct 18, 2021Observed: 3.12 ft at 11:30AM Oct 18, 2021Observed: 3.11 ft at 11:45AM Oct 18, 2021Observed: 3.11 ft at 12:00PM Oct 18, 2021Observed: 3.11 ft at 12:15PM Oct 18, 2021Observed: 3.1 ft at 12:30PM Oct 18, 2021Observed: 3.1 ft at 12:45PM Oct 18, 2021Observed: 3.1 ft at 1:00PM Oct 18, 2021Observed: 3.1 ft at 1:15PM Oct 18, 2021Observed: 3.09 ft at 1:30PM Oct 18, 2021Observed: 3.08 ft at 1:45PM Oct 18, 2021Observed: 3.08 ft at 2:00PM Oct 18, 2021Observed: 3.08 ft at 2:15PM Oct 18, 2021Observed: 3.08 ft at 2:30PM Oct 18, 2021Observed: 3.08 ft at 2:45PM Oct 18, 2021Observed: 3.08 ft at 3:00PM Oct 18, 2021Observed: 3.07 ft at 3:15PM Oct 18, 2021Observed: 3.06 ft at 3:30PM Oct 18, 2021Observed: 3.07 ft at 3:45PM Oct 18, 2021Observed: 3.06 ft at 4:00PM Oct 18, 2021Observed: 3.06 ft at 4:15PM Oct 18, 2021Observed: 3.06 ft at 4:30PM Oct 18, 2021Observed: 3.05 ft at 4:45PM Oct 18, 2021Observed: 3.06 ft at 5:00PM Oct 18, 2021Observed: 3.06 ft at 5:15PM Oct 18, 2021Observed: 3.06 ft at 5:30PM Oct 18, 2021Observed: 3.06 ft at 5:45PM Oct 18, 2021Observed: 3.06 ft at 6:00PM Oct 18, 2021Observed: 3.06 ft at 6:15PM Oct 18, 2021Observed: 3.06 ft at 6:30PM Oct 18, 2021Observed: 3.06 ft at 6:45PM Oct 18, 2021Observed: 3.06 ft at 7:00PM Oct 18, 2021Observed: 3.06 ft at 7:15PM Oct 18, 2021Observed: 3.06 ft at 7:30PM Oct 18, 2021Observed: 3.06 ft at 7:45PM Oct 18, 2021Observed: 3.06 ft at 8:00PM Oct 18, 2021Observed: 3.06 ft at 8:15PM Oct 18, 2021Observed: 3.06 ft at 8:30PM Oct 18, 2021Observed: 3.06 ft at 8:45PM Oct 18, 2021Observed: 3.07 ft at 9:00PM Oct 18, 2021Observed: 3.07 ft at 9:15PM Oct 18, 2021Observed: 3.07 ft at 9:30PM Oct 18, 2021Observed: 3.07 ft at 9:45PM Oct 18, 2021Observed: 3.06 ft at 10:00PM Oct 18, 2021Observed: 3.06 ft at 10:15PM Oct 18, 2021Observed: 3.06 ft at 10:30PM Oct 18, 2021Observed: 3.06 ft at 10:45PM Oct 18, 2021Observed: 3.06 ft at 11:00PM Oct 18, 2021Observed: 3.07 ft at 11:15PM Oct 18, 2021Observed: 3.06 ft at 11:30PM Oct 18, 2021Observed: 3.06 ft at 11:45PM Oct 18, 2021Observed: 3.06 ft at 12:00AM Oct 19, 2021Observed: 3.06 ft at 12:15AM Oct 19, 2021Observed: 3.06 ft at 12:30AM Oct 19, 2021Observed: 3.06 ft at 12:45AM Oct 19, 2021Observed: 3.06 ft at 1:00AM Oct 19, 2021Observed: 3.03 ft at 10:15AM Oct 19, 2021Observed: 3.03 ft at 10:30AM Oct 19, 2021Observed: 3.03 ft at 10:45AM Oct 19, 2021Observed: 3.03 ft at 11:00AM Oct 19, 2021Observed: 3.03 ft at 11:15AM Oct 19, 2021Observed: 3.03 ft at 11:30AM Oct 19, 2021Observed: 3.03 ft at 11:45AM Oct 19, 2021Observed: 3.02 ft at 12:00PM Oct 19, 2021Observed: 3.02 ft at 12:15PM Oct 19, 2021Observed: 3.01 ft at 12:30PM Oct 19, 2021Observed: 3.01 ft at 12:45PM Oct 19, 2021Observed: 3.01 ft at 1:00PM Oct 19, 2021Observed: 3.01 ft at 1:15PM Oct 19, 2021Observed: 3 ft at 1:30PM Oct 19, 2021Observed: 3 ft at 1:45PM Oct 19, 2021Observed: 3 ft at 2:00PM Oct 19, 2021Observed: 2.99 ft at 2:15PM Oct 19, 2021Observed: 3 ft at 2:30PM Oct 19, 2021Observed: 2.99 ft at 2:45PM Oct 19, 2021Observed: 2.99 ft at 3:00PM Oct 19, 2021Observed: 2.99 ft at 3:15PM Oct 19, 2021Observed: 2.99 ft at 3:30PM Oct 19, 2021Observed: 2.98 ft at 3:45PM Oct 19, 2021Observed: 2.98 ft at 4:00PM Oct 19, 2021Observed: 2.98 ft at 4:15PM Oct 19, 2021Observed: 2.98 ft at 4:30PM Oct 19, 2021Observed: 2.98 ft at 4:45PM Oct 19, 2021Observed: 2.98 ft at 5:00PM Oct 19, 2021Observed: 2.98 ft at 5:15PM Oct 19, 2021Observed: 2.98 ft at 5:30PM Oct 19, 2021Observed: 2.98 ft at 5:45PM Oct 19, 2021Observed: 2.99 ft at 6:00PM Oct 19, 2021Observed: 2.99 ft at 6:15PM Oct 19, 2021Observed: 2.99 ft at 6:30PM Oct 19, 2021Observed: 2.99 ft at 6:45PM Oct 19, 2021Observed: 2.99 ft at 7:00PM Oct 19, 2021Observed: 2.99 ft at 7:15PM Oct 19, 2021Observed: 2.99 ft at 7:30PM Oct 19, 2021Observed: 2.99 ft at 7:45PM Oct 19, 2021Observed: 3 ft at 8:00PM Oct 19, 2021Observed: 3 ft at 8:15PM Oct 19, 2021Observed: 3 ft at 8:30PM Oct 19, 2021Observed: 3 ft at 8:45PM Oct 19, 2021Observed: 3 ft at 9:00PM Oct 19, 2021USGS--Water Resources of the United StatesACYG1(plotting HGIRG) Graph Created (9:19PM Oct 19, 2021)ObservedLatest observed value: 3 ft at 9:00 PM EDT 19-Oct-2021. Flood Stage is 12 ft
Printable Image
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 are not available for the Alcovy River above Covington. Only observed stages are available for this point.

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Upstream Gauge - near Lawrenceville Upstream Gauge Downstream Gauge Downstream Gauge - near High Point
Flood Categories (in feet)
Major Flood Stage: 20
Moderate Flood Stage: 16
Flood Stage: 12
Action Stage: 9
Low Stage (in feet): 0

Historic Crests
(1) 14.79 ft on 03/16/1976
(2) 14.40 ft on 03/18/1990
(3) 13.90 ft on 10/05/1995
(4) 13.73 ft on 07/02/2003
(5) 13.57 ft on 04/21/2019
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 12.92 ft on 02/08/2020
(2) 13.57 ft on 04/21/2019
(3) 12.40 ft on 12/31/2015
(4) 13.34 ft on 12/26/2015
(5) 12.16 ft on 11/12/2009
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.60 ft on 10/04/2007
(2) 0.83 ft on 09/26/2007

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
22 Major flooding with widespread innundation expands further into the woodlands and fields near the river upstream and downstream from the gage on Alcovy Trestle Road. The water level reaches the top of the bridge with erosion likely to the road on either side of the bridge. Portions of Hamby Lane and Alcovy Trestle Road will be under two feet of water. The bridge and roads will be closed by local officials.
20 Major flooding begins. Widespread innundation of water expands further into the woodlands and fields near the river upstream and downstream from the gage on Alcovy Trestle Road. The bridge forms an obstacle and acts like a dam causing some backwater and erosion eddies to the sides of the bridge. The intersection of Hamby Lane and Alcovy Trestle Road begins to flood. This may cause local officials to close it.
18 Moderate flooding continues to expand further into the woodlands and fields near the river upstream and downstream from the gage on Alcovy Trestle Road. The bridge forms an obstacle and acts like a dam causing some backwater and erosion eddies to the sides of the bridge. The intersection of Hamby Lane and Alcovy Trestle Road begins to flood. This may cause local officials to close it.
16 Moderate flooding begins. Flooding continues to expand further into the woodlands and fields near the river upstream and downstream from the gage on Alcovy Trestle Road. The water level is near the bottom of the bridge. This may cause local officials to close it due to possible erosion around the supports.
14 Minor flooding continues of the natural flood plain and expands further into the woodlands along the river upstream and downstream from the gage on Alcovy Trestle Road.
12 Flood Stage is reached. Minor flooding begins of woodlands and the natural flood plain of the river upstream and downstream from the gage on Alcovy Trestle Road.
9 Bankfull conditions are reached along the river upstream and downstream from the gage on Alcovy Trestle Road.
About This Location Collapse

Latitude: 33.639389° N, Longitude: 83.778417° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 12 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 646 ft 658 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:
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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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