Chattahoochee River above Roswell water level

Name: Chattahoochee River above Roswell 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

Normal for mid-October

Water level

3.66ft Up 0.87 ft over the last 24 hours

Measured Oct 20, 2026, 09:00 AM EDT (22 min ago)

Flow: 1,560 cfs
Water temperature: 53 °F

History

7 days 30 days 1 year Years compared

20252026

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

What this means

Water levels are unremarkable at Chattahoochee River above Roswell, where the gauge shows 3.66 ft.

That puts it 0.25 ft above the median of 3.41 ft for mid-October, based on 33 years of readings. It is 5.34 ft below the flood stage of 9.00 ft. A year ago it stood at 3.61 ft (+0.05 ft).

It is on the way up, by 0.87 ft over the past 24 hours. There is still 5.34 ft of room before flood stage. The 30-day range is 2.57 ft – 4.11 ft.

Fall is often low-water season on rivers, until steadier rain returns. The sensor also reports a water temperature of 53 °F.

Compared with 33 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 3.41 ft0.25 ft above the median for this date
Normal for this date: 2.75 ft – 4.76 ft8 years in 10 fall in this range (33 years of records)
Same day last year: 3.61 ft+0.05 ft
Lowest and highest in 30 days: 2.57 ft – 4.11 ft
Lowest and highest in 12 months: 2.64 ft – 5.58 ft
Highest on record: 11.96 ftSeptember 21, 2009

Paddling and fishing conditions

Most paddlers and anglers will find the river in good shape at this stage.

For reference, flood stage is 9.00 ft.

What happens at each level

20.00 ft: Extensive flooding of many homes and businesses will result on Riverside Road. Sections of Riverside Road will be under water.
17.00 ft: Major flooding begins. The Fulton County Water Pollution Control Facility will flood between 17 and 17.5 feet. Eves Road begins to flood. Numerous homes are flooded along Riverside Road and Old Riverside Road.
14.00 ft: Moderate flooding expands of yards...walkways...access roads and some homes along portions of Riverside Road...Old Riverside Road and Azalea Drive. The tennis courts at the Huntcliff Club...the swimming pool and lower portions of the club house are flooded. Water is around three feet deep in the horse stables. The water level floods the gage house and automated stage readings are unlikely.
13.00 ft: Moderate flooding begins. Extensive flooding of yards...walkways...access roads and some homes develop along parts of Riverside Road...Old Riverside Road and Azalea Drive by the river. Water floods the tennis courts at the Huntcliff Club...the swimming pool and lower portions of the club house. Water is four feet deep over the road leading to the horse stables which are flooded with up to two feet of water. The water level is around one half foot below the gage house which may affect the stage readings.
12.00 ft: Minor flooding expands with water three feet deep in the Ace Sand Company office and a warehouse. Water covers the parking lots of Don White Memorial Park and the Azalea Park. Water floods the tennis courts at the Huntcliff Club and approaches the swimming pool. The water is three feet deep over the road leading to the horse stables which begin to flood. Riverside Road at Northcliff Trace is flooded with one foot of water. These conditions occurred in September 2009.
11.00 ft: Minor flooding continues with water two feet deep in the Ace Sand Company office and a warehouse. Flooding expands into the parking lots of Don White Memorial Park on Riverside Road...and the Azalea Park on Azalea Drive west of Roswell Road. Water floods the tennis courts at the Huntcliff Club and is two feet deep over the road leading to the horse stables and approaches the north end of the stables. The storm drains stop functioning at Riverside Road and Northcliff Trace and the road begins to flood.
10.00 ft: Minor flooding continues. The water is one foot deep in the Ace Sand Company office and begins to flood a warehouse. Flooding expands into the parkings lots of Don White Memorial Park on Riverside Road...and the Azalea Park on Azalea Drive west of Roswell Road. Water begins to flood the tennis courts at the Huntcliff Club across from Azalea Park and is one foot deep over the road leading to the horse stables. The storm drains will stop functioning at Riverside Road and Northcliff Trace.
9.00 ft: Flood stage is reached. The water reaches the bottom of the Ace Sand Company office and begins to flood the parking lot of Don White Memorial Park on Riverside Road...and the parking lot at the Azalea Park on Azalea Drive west of Roswell Road. Water will approach the tennis courts at the Huntcliff Club across from Azalea Park and begin to flood the road leading to the horse stables. The storm drains will no longer function properly at Riverside Road and Northcliff Trace.
8.00 ft: The river begins to come out of its banks in low lying areas...especially near the Ace Sand Company. The river level reaches the boardwalk and fishing pier at the Don White Memorial Park under Georgia Highway 400...two miles downstream from the gage. It also reaches the top of the boat ramp at the Azalea Park on Azalea Drive west of Georgia Highway 9.
3.66 ft: Right now

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

Highest crests on record

Chance of at least minor flooding in October to December: < 5 %.

Rank	Level	Date
1	11.96 ft	September 21, 2009
2	11.51 ft	October 11, 2020
3	10.37 ft	September 27, 2024
4	9.97 ft	December 28, 2018
5	9.94 ft	September 17, 2004
6	9.89 ft	March 17, 1990
7	9.77 ft	January 4, 2023
8	9.77 ft	September 8, 2021
9	9.76 ft	April 19, 2019
10	9.75 ft	April 13, 1979

Weather at the gauge

No rain in the last 3 days.

19 Mon 70° 41° – Wind 10 mph

20 Tue 74° 43° – Wind 6 mph

21 Wed 74° 45° – Wind 8 mph

22 Thu 77° 55° – Wind 6 mph

23 Fri 75° 56° – Wind 9 mph

24 Sat 71° 53° – Wind 13 mph

25 Sun 71° 51° – Wind 10 mph

Forecast: Open-Meteo

Sunrise 07:47 AM Sunset 06:58 PM Daylight 11 hr, 12 min First quarter 68%

Map

Other gauges on the Chattahoochee River

Gauge	Level	Compared with normal	24 hours	Distance
Chattahoochee River near CorneliaRiver gauge, Chattahoochee River	0.14 ft	Very low	+0.02 ft	55 mi
Chattahoochee River at Buford Dam, near BufordRiver gauge, Chattahoochee River	−0.57 ft	Very low	±0	18 mi
Chattahoochee River near BufordRiver gauge, Chattahoochee River	5.65 ft	No reference yet	−0.03 ft	16 mi
Chattahoochee River near NorcrossRiver gauge, Chattahoochee River	2.89 ft	Normal	+1.11 ft	7 mi
Chattahoochee River at Morgan Falls DamReservoir, Chattahoochee River	863.91 ft	Very low	−1.60 ft	4.0 mi
Chattahoochee River below Morgan Falls DamRiver gauge, Chattahoochee River	811.30 ft	Normal	+0.01 ft	4.1 mi
Chattahoochee River at US 41, at AtlantaRiver gauge, Chattahoochee River	4.28 ft	Low	−0.13 ft	11 mi
Chattahoochee River at AtlantaRiver gauge, Chattahoochee River	2.90 ft	Low	−0.11 ft	12 mi
Chattahoochee River at GA 280, near AtlantaRiver gauge, Chattahoochee River	4.04 ft	Very low	−0.10 ft	15 mi
Chattahoochee River near FairburnRiver gauge, Chattahoochee River	0.38 ft	Low	−0.09 ft	31 mi
Chattahoochee River above Bear Creek, near RicoRiver gauge, Chattahoochee River	0.71 ft	Low	−0.03 ft	36 mi
Chattahoochee River near WhitesburgRiver gauge, Chattahoochee River	2.99 ft	Low	±0	49 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Big Creek below Hog Wallow Creek at RoswellRiver gauge, Big Creek	2.44 ft	Normal	+0.02 ft	3.1 mi
Crooked Creek near NorcrossRiver gauge, Crooked Creek	3.49 ft	Low	±0	3.3 mi
Willeo Creek at GA 120, near RoswellRiver gauge, Willeo Creek	0.87 ft	Normal	−0.01 ft	4.6 mi
Big Creek near AlpharettaRiver gauge, Big Creek	1.67 ft	Low	±0	5.2 mi
Nancy Creek at Johnson Ferry Road, at ChambleeRiver gauge, Nancy Creek	3.57 ft	Very low	−0.05 ft	6 mi
N.f. Peachtree Creek at Graves Road, near DoravilleRiver gauge, N.f. Peachtree Creek	3.62 ft	High	±0	8 mi
Sope Creek near MariettaRiver gauge, Sope Creek	0.92 ft	Very low	+0.01 ft	8 mi

Questions and answers

How does the Chattahoochee River above Roswell compare with last year?

It is 0.05 ft higher than on the same day last year, when the reading was 3.61 ft.

What is flood stage for the Chattahoochee River above Roswell?

The official flood stage is 9.00 ft. The level is currently 5.34 ft below it.

What is a normal level for the Chattahoochee River above Roswell in mid-October?

The median for mid-October is 3.41 ft. In 8 years out of 10 the reading falls between 2.75 ft and 4.76 ft, based on 33 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 above Roswell today?

On Oct 20, 2026, 09:00 AM EDT, the water level was 3.66 ft. Up 0.87 ft over the last 24 hours.

Is Chattahoochee River above Roswell rising or falling?

Up 0.87 ft over the last 24 hours. Up 0.37 ft over the last 7 days.

Is the level of Chattahoochee River above Roswell normal?

Normal for mid-October. Compared with 33 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:02335450 (Agency page)
Coordinates: 33.98581, -84.31569 (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	3.66 ft	2026-10-20 13:00	Provisional
Flow	1,560 cfs	2026-10-20 13:00	Provisional
Water temperature	53 °F	2026-10-20 13:00	Provisional

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How to cite

U.S. Geological Survey: Chattahoochee River above Roswell (usgs:02335450). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/georgia/chattahoochee-river-above-roswell

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