Chattahoochee River at US 41, at Atlanta water level

Name: Chattahoochee River at US 41, at Atlanta water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Chattahoochee River, Georgia, United States

Directions

Low for mid-October

Water level

4.28ft Down 0.11 ft over the last 24 hours

Measured Oct 20, 2026, 10:45 AM EDT (24 min ago)

History

7 days 30 days 1 year Years compared

20252026

Water level Normal range (10–90 %) Minor flood stage

What this means

At 4.28 ft, the Chattahoochee River at US 41, at Atlanta is below normal for mid-October.

That puts it 0.44 ft below the median of 4.73 ft for mid-October, based on 42 years of readings. It is 9.72 ft below the flood stage of 14.00 ft. A year ago it stood at 5.04 ft (−0.76 ft).

The level is falling, down 0.11 ft over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. Over the past 30 days it has moved between 4.25 ft and 6.13 ft.

Fall is often low-water season on rivers, and it usually takes a few days of steady rain to change that.

Compared with 42 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 4.73 ft0.44 ft below the median for this date
Normal for this date: 4.27 ft – 6.99 ft8 years in 10 fall in this range (42 years of records)
Same day last year: 5.04 ft−0.76 ft
Lowest and highest in 30 days: 4.25 ft – 6.13 ft
Lowest and highest in 12 months: 3.95 ft – 9.22 ft
Highest on record: 28.59 ftSeptember 22, 2009

What the stage means on the water

Low water means more dragging on shallow riffles and slower floats. Fish crowd into the deeper runs, and warm, low water stresses them, so play and release them quickly.

The National Weather Service puts flood stage for this gauge at 14.00 ft, still 9.72 ft away.

What happens at each level

29.00 ft: Record flooding occurs with widespread inundation flooding of the woodlands and large portions of the Chattahoochee National Recreation Area upstream and downstream from the gage on Cobb Parkway. The flood waters will be around 14 feet deep over portions of the access road to the recreation area. Portions of the parking lot will be under 11 feet of water. The restrooms at the recreation area will be flooded 9 feet deep with only the roof exposed. This will be worse than the September 2009 flood event.
28.00 ft: Major flooding expands with widespread inundation flooding of the woodlands and large portions of the Chattahoochee National Recreation Area upstream and downstream from the gage on Cobb Parkway. The flood waters will be around 13 feet deep over portions of the access road to the recreation area. Portions of the parking lot will be under 10 feet of water. The restrooms at the recreation area will be flooded 8 feet deep with only the roof exposed. This will be similar to the September 2009 flood event.
26.00 ft: Major flooding expands with widespread inundation flooding of the woodlands and large portions of the Chattahoochee National Recreation Area along the river upstream and downstream from the gage on Cobb Parkway. The flood waters will be around 11 feet deep over portions of the access road to the recreation area. Portions of the parking lot will be under 8 feet of water. The restrooms at the recreation area will be flooded 6 feet deep.
24.00 ft: Major flooding continues with widespread inundation flooding of the woodlands and large portions of the Chattahoochee National Recreation Area along the river upstream and downstream from the gage on Cobb Parkway. The flood waters will be around 9 feet deep over portions of the access road to the recreation area. Portions of the parking lot will be under 6 feet of water. The restrooms at the recreation area will be flooded 4 feet deep.
22.00 ft: Major flooding continues with widespread inundation flooding of the woodlands and large portions of the Chattahoochee National Recreation Area along the river upstream and downstream from the gage on Cobb Parkway. The flood waters will be around 7 feet deep over portions of the access road to the recreation area. Portions of the parking lot will be under 4 feet of water. The restrooms at the recreation area will be flooded two feet deep.
20.00 ft: Major flooding begins. Widespread inundation flooding occurs in the woodlands and large portions of the Chattahoochee National Recreation Area along the river upstream and downstream from the gage on Cobb Parkway. The flood waters will be around 5 feet deep over portions of the access road to the recreation area. Portions of the parking lot will be under two feet of water. The restrooms at the recreation area will begin to flood.
18.00 ft: Moderate flooding begins. Significant flooding occurs in the woodlands and affects large portions of the Chattahoochee National Recreation Area along the river upstream and downstream from the gage on Cobb Parkway. The flood waters will be around 3 feet deep over portions of the access road to the recreation area. Portions of the parking lot will begin to flood.
16.00 ft: Minor flooding expands in the woodlands and affects large portions of the Chattahoochee National Recreation Area along the river upstream and downstream from the gage on Cobb Parkway. The flood waters will be around one foot deep over portions of the access road to the recreation area.
14.00 ft: Flood stage is reached. Minor flooding occurs in the woodlands and portions of the Chattahoochee National Recreation Area along the river upstream and downstream from the gage on Cobb Parkway. The flood waters will reach the top of the concrete boat ramp in the recreation area.
12.00 ft: Bankfull conditions occur in the woodlands and low lying portions of the Chattahoochee National Recreation Area along the river upstream and downstream from the gage on Cobb Parkway.
4.28 ft: Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Rank	Level	Date
1	28.59 ft	September 22, 2009
2	24.13 ft	September 27, 2024
3	23.65 ft	March 17, 1990
4	22.99 ft	April 13, 1979
5	20.50 ft	October 11, 2020
6	19.77 ft	November 11, 2009
7	19.31 ft	December 28, 2018
8	18.62 ft	April 19, 2019
9	17.91 ft	October 12, 2009
10	17.52 ft	September 8, 2021

Weather at the gauge

No rain in the last 3 days.

18 Sun 65° 43° – Wind 13 mph

19 Mon 69° 40° – Wind 9 mph

20 Tue 75° 54° – Wind 6 mph

21 Wed 78° 58° – Wind 5 mph

22 Thu 77° 57° – Wind 8 mph

23 Fri 77° 58° – Wind 7 mph

24 Sat 72° 56° – Wind 11 mph

Forecast: Open-Meteo

Sunrise 07:47 AM Sunset 06:59 PM Daylight 11 hr, 12 min First quarter 69%

Map

Other gauges on the Chattahoochee River

Gauge	Level	Compared with normal	24 hours	Distance
Chattahoochee River at Buford Dam, near BufordRiver gauge, Chattahoochee River	−0.57 ft	Very low	±0	29 mi
Chattahoochee River near BufordRiver gauge, Chattahoochee River	5.66 ft	No reference yet	−0.02 ft	27 mi
Chattahoochee River near NorcrossRiver gauge, Chattahoochee River	2.49 ft	Normal	+0.76 ft	17 mi
Chattahoochee River above RoswellRiver gauge, Chattahoochee River	3.58 ft	Normal	+0.85 ft	11 mi
Chattahoochee River at Morgan Falls DamReservoir, Chattahoochee River	864.17 ft	Very low	−1.24 ft	8 mi
Chattahoochee River below Morgan Falls DamRiver gauge, Chattahoochee River	811.30 ft	Normal	+0.01 ft	8 mi
Chattahoochee River at AtlantaRiver gauge, Chattahoochee River	2.90 ft	Low	−0.11 ft	0.6 mi
Chattahoochee River at GA 280, near AtlantaRiver gauge, Chattahoochee River	4.06 ft	Very low	−0.11 ft	3.8 mi
Chattahoochee River near FairburnRiver gauge, Chattahoochee River	0.34 ft	Low	−0.10 ft	19 mi
Chattahoochee River above Bear Creek, near RicoRiver gauge, Chattahoochee River	0.69 ft	Low	−0.04 ft	25 mi
Chattahoochee River near WhitesburgRiver gauge, Chattahoochee River	3.01 ft	Low	+0.04 ft	37 mi
Chattahoochee River at GA 100, at FranklinRiver gauge, Chattahoochee River	7.98 ft	Low	+0.02 ft	55 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Rottenwood Creek at Interstate N Pkwy, near SmyrnaRiver gauge, Rottenwood Creek	2.15 ft	Low	±0	1.8 mi
Nancy Creek at West Wesley Road, at AtlantaRiver gauge, Nancy Creek	1.77 ft	Normal	±0	2.2 mi
Chatt River at Powers Fy and I-285 near AtlantaRiver gauge, Chatt River	3.65 ft	Low	−0.04 ft	2.5 mi
Woodall Creek at Defoors Ferry Road, at AtlantaRiver gauge, Woodall Creek	0.76 ft	Normal	+0.01 ft	3.3 mi
Peachtree Creek at AtlantaRiver gauge, Peachtree Creek	2.22 ft	Low	+0.15 ft	4.2 mi
Nancy Creek at Rickenbacker Drive, at AtlantaRiver gauge, Nancy Creek	1.17 ft	Normal	±0	4.3 mi
Proctor Creek at Jackson Parkway, at AtlantaRiver gauge, Proctor Creek	2.99 ft	Very low	±0	5.2 mi
Nickajack Creek at US 78/278, near MabletonRiver gauge, Nickajack Creek	1.08 ft	Very low	−0.02 ft	5.9 mi

Questions and answers

How does the Chattahoochee River at US 41, at Atlanta compare with last year?

It is 0.76 ft lower than on the same day last year, when the reading was 5.04 ft.

What is flood stage for the Chattahoochee River at US 41, at Atlanta?

The official flood stage is 14.00 ft. The level is currently 9.72 ft below it.

What is a normal level for the Chattahoochee River at US 41, at Atlanta in mid-October?

The median for mid-October is 4.73 ft. In 8 years out of 10 the reading falls between 4.27 ft and 6.99 ft, based on 42 years of records.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Chattahoochee River at US 41, at Atlanta today?

On Oct 20, 2026, 10:45 AM EDT, the water level was 4.28 ft. Down 0.11 ft over the last 24 hours.

Is Chattahoochee River at US 41, at Atlanta rising or falling?

Down 0.11 ft over the last 24 hours. Down 0.42 ft over the last 7 days.

Is the level of Chattahoochee River at US 41, at Atlanta normal?

Low for mid-October. Compared with 42 years of daily readings for this time of year.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:02335990 (Agency page)
Coordinates: 33.86767, -84.45411 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	4.28 ft	2026-10-20 14:45	Provisional

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How to cite

U.S. Geological Survey: Chattahoochee River at US 41, at Atlanta (usgs:02335990). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/georgia/chattahoochee-river-at-us-41-at-atlanta

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer