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SwedenOostanaula River at Calhoun water level
River gauge, Oostanaula River, Georgia, United States
Right now
Low for mid-October
Water level
History
20252026
What this means
At 2.48 ft, the Oostanaula River at Calhoun is below normal for mid-October.
The median for mid-October is 3.57 ft, based on 31 years of readings, so the river stage is 1.09 ft below typical. It is 18.52 ft below the flood stage of 21.00 ft. On the same day last year the reading was 2.53 ft, a difference of −0.05 ft.
The level is falling, down 0.04 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 2.29 ft and 4.81 ft.
Fall is often low-water season on rivers, and it usually takes a few days of steady rain to change that.
Compared with 31 years of daily readings for this time of year. How to read levels
Key numbers
- Median for this date
- 3.57 ft1.09 ft below the median for this date
- Normal for this date
- 2.38 ft – 6.00 ft8 years in 10 fall in this range (31 years of records)
- Same day last year
- 2.53 ft−0.05 ft
- Lowest and highest in 30 days
- 2.29 ft – 4.81 ft
- Lowest and highest in 12 months
- 2.24 ft – 13.54 ft
- Highest on record
- 34.15 ftFebruary 19, 1990
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 21.00 ft, still 18.52 ft away.
What happens at each level
- 37.00 ft
- Near record flooding occurs with widespread innundation flooding in the woodlands...fields and pastures upstream and downstream from the gage behind the water treatment plant off Mauldin Road. Flood waters up to 8 feet deep will be affecting the athletic fields at the Harris River Park on Mauldin Road and additional athletic fields near the boat ramp off the Georgia Highway 136 Connector. The water level will reach the bottom of the North River Street bridge and begin to flood portions of the road.
- 35.00 ft
- Major flooding begins. Widespread innundation flooding occurs in the woodlands...fields and pastures upstream and downstream from the gage behind the water treatment plant off Mauldin Road. Flood waters up to 6 feet deep will be affecting the athletic fields at the Harris River Park on Mauldin Road and additional athletic fields near the boat ramp off the Georgia Highway 136 Connector. The water level will be approaching the foundation of a textile mill in Calhoun.
- 34.00 ft
- Significant flooding continues to expand further into the woodlands...fields and pastures upstream and downstream from the gage behind the water treatment plant off Mauldin Road. A boat ramp and small parking lot on the upstream and right bank side of the Georgia Highway 136 Connector will be under at least 13 feet of water. Flood waters up to 4 feet deep will be affecting the athletic fields at the Harris River Park on Mauldin Road and additional athletic fields near the boat ramp.
- 32.00 ft
- Significant flooding continues to expand into the woodlands...fields and pastures upstream and downstream from the gage behind the water treatment plant off Mauldin Road. A boat ramp and small parking lot on the upstream and right bank side of the Georgia Highway 136 Connector will be under at least 11 feet of water. Flood waters up to two feet deep will be affecting the athletic fields at the Harris River Park on Mauldin Road and additional athletic fields near the boat ramp.
- 30.00 ft
- Moderate flooding beings. Significant flooding expands into the woodlands...fields and pastures upstream and downstream from the gage behind the water treatment plant off Mauldin Road. A boat ramp and small parking lot on the upstream and right bank side of the Georgia Highway 136 Connector will be under at least 9 feet of water. Flood waters will be approaching athletic fields at the Harris River Park on Mauldin Road and additional athletic fields near the boat ramp.
- 29.00 ft
- Minor flooding continues to expand much further into the woodlands...fields and pastures upstream and downstream from the gage behind the water treatment plant off Mauldin Road. A boat ramp and small parking lot on the upstream and right bank side of the Georgia Highway 136 Connector will be under at least 8 feet of water. Flood water will begin to fill in low areas near athletic fields at the Harris River Park on Mauldin Road.
- 27.00 ft
- Minor flooding continues to expand further into the woodlands...fields and pastures upstream and downstream from the gage behind the water treatment plant off Mauldin Road. A boat ramp and small parking lot on the upstream and right bank side of the Georgia Highway 136 Connector will be under at least 6 feet of water.
- 25.00 ft
- Minor flooding continues to expand into the woodlands...fields and pastures upstream and downstream from the gage behind the water treatment plant off Mauldin Road. A boat ramp and small parking lot on the upstream and right bank side of the Georgia Highway 136 Connector will be under at least 4 feet of water.
- 23.00 ft
- Minor flooding continues to expand into the woodlands...fields and pastures upstream and downstream from the gage behind the water treatment plant off Mauldin Road. A boat ramp and small parking lot on the upstream and right bank side of the Georgia Highway 136 Connector will be under at least 2 feet of water.
- 21.00 ft
- Minor flooding begins of woodlands...fields and pastures upstream and downstream from the gage behind a water treatment plant off Mauldin Road. A boat ramp and portions of a small parking lot on the upstream and right bank side of the Georgia Highway 136 Connector will be under water.
- 18.00 ft
- Bankfull is reached upstream and downstream from the river gauge behind the water treatment plant off Mauldin Road. The water level reaches the top of the boat ramp just upstream from the Georgia Highway 136 Connector or North River Street bridge.
- 2.48 ft
- Right now
Impact statements from the U.S. National Weather Service.
Highest crests on record
| Rank | Level | Date |
|---|---|---|
| 1 | 34.15 ft | February 19, 1990 |
| 2 | 29.97 ft | December 28, 2015 |
| 3 | 29.71 ft | March 24, 1980 |
| 4 | 29.10 ft | January 6, 1982 |
| 5 | 28.12 ft | March 28, 2021 |
| 6 | 28.00 ft | February 24, 2019 |
| 7 | 25.74 ft | January 9, 2009 |
| 8 | 25.64 ft | February 9, 2020 |
| 9 | 25.57 ft | April 6, 2000 |
| 10 | 25.47 ft | May 9, 2013 |
Weather at the gauge
The forecast is not available right now.
Map
Other gauges on the Oostanaula River
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Oostanaula River at ResacaRiver gauge, Oostanaula River | 1.65 ft | Low | −0.03 ft | 4.1 mi |
| Oostanaula River near RomeRiver gauge, Oostanaula River | 3.85 ft | Low | −0.13 ft | 18 mi |
| Oostanaula River at US 27, at RomeRiver gauge, Oostanaula River | 2.17 ft | Very low | −0.15 ft | 22 mi |
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Oothkalooga Creek at GA 53 Spur, at CalhounRiver gauge, Oothkalooga Creek | 7.73 ft | Very high | ±0 | 1.8 mi |
| Coosawattee River at Pine ChapelRiver gauge, Coosawattee River | 0.85 ft | Very low | +0.03 ft | 7 mi |
| Coosawattee River near Pine ChapelRiver gauge, Coosawattee River | 3.75 ft | Very low | +0.01 ft | 8 mi |
| Conasauga River at Sloan Bridge, below DaltonRiver gauge, Conasauga River | −0.54 ft | Low | −0.03 ft | 8 mi |
| Conasauga River at TiltonRiver gauge, Conasauga River | 2.33 ft | Very low | −0.04 ft | 10 mi |
| Armuchee Creek at Old Dalton Road, near RomeRiver gauge, Armuchee Creek | 3.73 ft | Very low | ±0 | 15 mi |
| Coosawattee River at CartersRiver gauge, Coosawattee River | 3.94 ft | Low | ±0 | 16 mi |
| Coahulla Creek at Keiths Mill Road, near DaltonRiver gauge, Coahulla Creek | 7.37 ft | Low | −0.02 ft | 16 mi |
Questions and answers
Is the Oostanaula River at Calhoun higher than last year?
No, it is 0.05 ft lower than on the same day last year, when the reading was 2.53 ft.
What is flood stage for the Oostanaula River at Calhoun?
The official flood stage is 21.00 ft. The level is currently 18.52 ft below it.
What is a normal level for the Oostanaula River at Calhoun in mid-October?
The median for mid-October is 3.57 ft. In 8 years out of 10 the reading falls between 2.38 ft and 6.00 ft, based on 31 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 Oostanaula River at Calhoun today?
On Oct 19, 2026, 02:15 PM EDT, the water level was 2.48 ft. Down 0.04 ft over the last 24 hours.
Is Oostanaula River at Calhoun rising or falling?
Down 0.04 ft over the last 24 hours. Down 1.53 ft over the last 7 days.
Is the level of Oostanaula River at Calhoun normal?
Low for mid-October. Compared with 31 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:02387520(Agency page)- Coordinates
34.51889, -84.95444(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 | 2.48 ft | 2026-10-19 18:15 | Provisional |
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How to cite
U.S. Geological Survey: Oostanaula River at Calhoun (usgs:02387520). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/georgia/oostanaula-river-at-calhoun
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