Alcovy River at New Hope Road near Grayson

1. 15.00 ftSignificant flooding continues to expand further into the woodlands upstream and downstream from the river gage at New Hope Road. The bridge forms an obstacle and acts like a dam causing some backwater and erosion eddies to the sides of the bridge. The flood water will be around one foot deep over the road and county officials will have the bridge closed. The high water will likely affect the performance of the USGS gaging equipment near the bridge.
2. 14.00 ftSignificant flooding continues to expand further into the woodlands upstream and downstream from the river gage at New Hope Road. The bridge forms an obstacle and acts like a dam causing some backwater and erosion eddies to the sides of the bridge. The water will begin to flood the road and county officials will likely close the bridge. Also the water level reaches the bottom of the USGS gaging equipment near the bridge.
3. 13.00 ftSignificant flooding continues to expand further into the woodlands upstream and downstream from the river gauge at New Hope Road. The bridge forms an obstacle and acts like a dam causing some backwater and erosion eddies to the sides of the bridge. County officials may need to close the bridge.
4. 12.00 ftSignificant flooding expands further into the woodlands upstream and downstream from the river gauge at New Hope Road. The bridge begins to form an obstacle and act like a dam causing some backwater and erosion eddies to the sides of the bridge. County officials may need to close the bridge.
5. 11.00 ftModerate flooding begins. Significant flooding expands further into the woodlands upstream and downstream from the river gauge at New Hope Road. The water level reaches the bottom of the bridge. County officials may need to close the bridge due to erosion to the banks on the sides of the bridge.
6. 10.00 ftMinor flooding continues to expand further into the woodlands upstream and downstream from the river gauge at New Hope Road.
7. 9.00 ftFlood stage is reached. Minor flooding begins of the woodlands upstream and downstream from the river gauge at New Hope Road.
8. 7.00 ftBankfull conditions are reached upstream and downstream from the river gauge at New Hope Road.

Most recent crests

• August 5, 2025: 9.50 ft
• June 13, 2025: 9.17 ft
• February 13, 2025: 11.79 ft
• September 27, 2024: 11.97 ft
• March 6, 2024: 10.79 ft
• January 9, 2024: 12.61 ft
• June 21, 2023: 9.29 ft
• January 4, 2023: 10.35 ft
• July 21, 2022: 11.26 ft
• April 6, 2022: 10.37 ft

• UpstreamAlcovy River at Lawrenceville
• DownstreamAlcovy River at Covington
• Shoal Creek at Paper Mill Rd near Lawrenceville
• Apalachee River at Fence Road near Dacula
• Brushy Fork Creek at Beaver Road near Loganville
• Pew Creek at Patterson Road near Lawrenceville
• Wildcat Creek (GA) at Lawrenceville
• Yellow River Tributary at Plantation Road near Lawrenceville
• Big Haynes Creek at Lenora Road near Snellville

Forecasts by the Southeast River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. Automated gauge readings are now available, courtesy of the USGS. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.