TidalMapSouth River at Bouldercrest Road at Atlanta, GA Water Level Today
NWS river forecast
| When | Stage | Flow |
|---|
Forecast from the NOAA National Water Prediction Service. Issued a few times a day and only while a forecast is active. Not for navigation.
Last 30 days
About this gauge
USGS gauge 02203800 sits on the South River and reads everything draining 41 square miles of the Upper Ocmulgee basin. Its datum sits 753 feet above sea level NAVD88. Daily flow has been on record here since 2024, 2 years of it.
Where this gauge sits in the drainage
Two gauged sites sit upstream of here. The closest is South River at Forrest Park Road, at Atlanta, GA, reading 22 square miles. This gauge adds the 19 square miles that drain in between. Downstream the next reading comes from South River at Flakes Mill Road near Atlanta, GA at 99 square miles, so what passes this gauge is about 42% of the water measured there. Water passing here goes on to South River at Klondike Road, near Lithonia, GA and South River at GA 81, at Snapping Shoals, GA.
Normal flows here
The South River runs a median of 30 cfs at this gauge across 2 years of record. July is the fullest month at a median 75 cfs, and September the leanest at 18 cfs. The highest daily mean on record is 3,770 cfs in 2024, and the lowest is 12 cfs in 2024.
| Month | Median flow | Share of annual median |
|---|---|---|
| Jan | 31 cfs | 103% |
| Feb | 36 cfs | 118% |
| Mar | 35 cfs | 117% |
| Apr | 28 cfs | 92% |
| May | 38 cfs | 127% |
| Jun | 34 cfs | 115% |
| Jul | 75 cfs | 250% |
| Aug | 28 cfs | 93% |
| Sep | 18 cfs | 60% |
| Oct | 19 cfs | 63% |
| Nov | 22 cfs | 73% |
| Dec | 25 cfs | 83% |
Medians from the USGS daily-statistics record, 2024 to 2026. A month at 100% is running at its own long-term median.
Flood stages and record crests
The South River reaches flood stage at this gauge at 15 feet. NWS starts watching it at 13 feet. The highest crest on record is 16 feet, in September 2024.
| Category | Gage height |
|---|---|
| Action | 13 ft |
| Minor flooding | 15 ft |
| Moderate flooding | 25 ft |
| Major flooding | 28 ft |
| When | Crest |
|---|---|
| September 2024 | 16 ft |
| March 1976 | 11.9 ft |
| February 1961 | 11.1 ft |
| March 1990 | 10.6 ft |
| May 1980 | 10.1 ft |
Flood categories and crest history from the NOAA National Water Prediction Service, gauge SOBG1. Stages are gage height, not depth. Not for navigation.
Dams near this gauge
The Army Corps' Morgan Falls Dam is 20 miles from this gauge. The Corps publishes no release schedule for this project; its last observed release and elevations load below.
- Morgan Falls Dam 20 miles
Nearby river gauges
- Doolittle Creek at Flat Shoals Rd, near Decatur, GA
- South River at Forrest Park Road, at Atlanta, GA
- Shoal Creek at Columbia Drive near Atlanta, GA
- Cobbs Creek at Rainbow Dr, near Decatur, GA
- South River at Flakes Mill Road near Atlanta, GA
- South River at Springdale Road, at Atlanta, GA
- Snapfinger Creek at Thompson Mill Rd near Lithonia, GA
- Snapfinger Creek near Decatur, GA
- Flint River at GA 85, near Forest Park, GA
- S.f Peachtree Creek Johnson Rd, near Atlanta, GA
- South Fork Peachtree at Casa Dr, near Clarkston, GA
- Burnt Fork Creek at Millwood Way near Clarkston, GA
Live streamflow and gage height: USGS gauge 02203800. Percentile context computed against the gauge's period of record. Not for navigation.
Open South River at Bouldercrest Road at Atlanta, GA on the live chart →
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