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South River at Forrest Park Road, at Atlanta, GA Water Level Today

Georgia · USGS gauge 02203655 · live data · Updated Oct 28, 2026

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About this gauge

USGS gauge 02203655 sits on the South River and reads everything draining 22 square miles of the Upper Ocmulgee basin. Its datum sits 748 feet above sea level NAVD88. Daily flow has been on record here since 2003, 24 years of it.

Where this gauge sits in the drainage

One gauged site sits upstream of here. The closest is Lakewood Park Lake Lkw near Lakewood Heights, GA, reading 6.3 square miles. This gauge adds the 16 square miles that drain in between. Downstream the next reading comes from South River at Bouldercrest Road at Atlanta, GA at 41 square miles, so what passes this gauge is about 54% of the water measured there. Water passing here goes on to South River at Flakes Mill Road near Atlanta, GA, 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 16 cfs at this gauge across 24 years of record. February is the fullest month at a median 22 cfs, and September the leanest at 9.9 cfs. The highest daily mean on record is 1,610 cfs in 2024, and the lowest is 2.0 cfs in 2012.

Median flow by month
MonthMedian flowShare of annual median
Jan18 cfs112%
Feb22 cfs138%
Mar21 cfs131%
Apr20 cfs125%
May17 cfs106%
Jun16 cfs97%
Jul17 cfs106%
Aug15 cfs94%
Sep9.9 cfs62%
Oct9.9 cfs62%
Nov11 cfs69%
Dec17 cfs106%

Medians from the USGS daily-statistics record, 2003 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 12 feet. The highest crest on record is 16.6 feet, in September 2009.

NWS flood categories
CategoryGage height
Action12 ft
Minor flooding15 ft
Moderate flooding18 ft
Major flooding21 ft
Highest crests on record
WhenCrest
September 200916.6 ft
July 200516.3 ft
September 200416.2 ft
December 201515.7 ft
September 202415.4 ft

Flood categories and crest history from the NOAA National Water Prediction Service, gauge STHG1. 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.

Nearby river gauges

Live streamflow and gage height: USGS gauge 02203655. Percentile context computed against the gauge's period of record. Not for navigation.

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