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Yellow River at GA 124, near Lithonia, GA Water Level Today

Georgia · USGS gauge 02207120 · live data · Updated Oct 28, 2026

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About this gauge

USGS gauge 02207120 sits on the Yellow River and reads everything draining 161 square miles of the Upper Ocmulgee basin. Its datum sits 720 feet above sea level NAVD88. Daily flow has been on record here since 2001, 25 years of it.

Where this gauge sits in the drainage

Two gauged sites sit upstream of here. The closest is Yellow River near Snellville, GA, reading 136 square miles. This gauge adds the 25 square miles that drain in between. Downstream the next reading comes from Yellow River at Pleasant Hill Road, near Lithonia,ga at 213 square miles, so what passes this gauge is about 76% of the water measured there. Water passing here goes on to Yellow River at Milstead, GA, Yellow River at Gees Mill Road, near Milstead, GA and Yellow River Rocky Plains Rd near Rocky Plains, GA. It then enters Jackson Lake Lloyd Shoals near Jackson, GA, below which releases set the flow.

Normal flows here

The Yellow River runs a median of 137 cfs at this gauge across 25 years of record. February is the fullest month at a median 234 cfs, and October the leanest at 80 cfs. The highest daily mean on record is 15,000 cfs in 2009, and the lowest is 19 cfs in 2008.

Median flow by month
MonthMedian flowShare of annual median
Jan190 cfs139%
Feb234 cfs171%
Mar227 cfs166%
Apr188 cfs137%
May145 cfs106%
Jun126 cfs92%
Jul119 cfs87%
Aug109 cfs80%
Sep81 cfs59%
Oct80 cfs58%
Nov100 cfs73%
Dec166 cfs121%

Medians from the USGS daily-statistics record, 2001 to 2026. A month at 100% is running at its own long-term median.

Flood stages and record crests

The Yellow River reaches flood stage at this gauge at 15 feet. NWS starts watching it at 13 feet. The highest crest on record is 27.5 feet, in September 2009.

NWS flood categories
CategoryGage height
Action13 ft
Minor flooding15 ft
Moderate flooding19 ft
Major flooding24 ft
Highest crests on record
WhenCrest
September 200927.5 ft
September 202417.8 ft
July 200517.2 ft
May 200316.8 ft
December 201516.6 ft

Flood categories and crest history from the NOAA National Water Prediction Service, gauge YELG1. Stages are gage height, not depth. Not for navigation.

Dams near this gauge

The Army Corps' Morgan Falls Dam is 23 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 02207120. Percentile context computed against the gauge's period of record. Not for navigation.

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