River gauges›Georgia
RIVER GAUGE · CHATTAHOOCHEE RIVER

Chattahoochee River at Atlanta

Fulton County, Georgia

Water level4.23 ft
Flow2,750 cfs
Last readingSep 16, 2026, 4:45 PM UTC (last recorded)
Action12 ft14,900 cfs
Minor flood14 ft17,400 cfs
Moderate flood18 ft24,386 cfs
Major flood20 ft29,283 cfs

The past week

Loading chart…

What floods at each level

Highest crests on record

DateLevelFlow
Dec 9, 191929 ft64,000 cfs
Sep 21, 200928.12 ft59,534 cfs
Jan 8, 194628 ft59,000 cfs

When the water runs low

Flood map

See which streets and areas flood at each water level here. Open the flood map ↗

More on Chattahoochee River

Get an alert when Chattahoochee River rises

Save this gauge in the free StormCast app and pick the level that matters to you. Your phone goes off when the water gets there.

A river gauge in the StormCast app

← All Georgia gauges · Search another river