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SwedenPomperaug River at Southbury water level
River gauge, Pomperaug River, Connecticut, United States
Right now
Normal for mid-October
Water level
- Flow
- 83.2 cfs
History
20252026
What this means
The Pomperaug River at Southbury is at 3.11 ft, in the normal range for mid-October.
That puts it 0.28 ft above the median of 2.84 ft for mid-October, based on 26 years of readings. It is 5.89 ft below the flood stage of 9.00 ft. A year ago it stood at 2.48 ft (+0.63 ft).
It has dropped 0.05 ft over the past 24 hours. In the last month it has stayed between 2.78 ft and 4.27 ft.
Fall is often low-water season on rivers, until steadier rain returns.
Compared with 26 years of daily readings for this time of year. How to read levels
Key numbers
- Median for this date
- 2.84 ft0.28 ft above the median for this date
- Normal for this date
- 2.43 ft – 3.79 ft8 years in 10 fall in this range (26 years of records)
- Same day last year
- 2.48 ft+0.63 ft
- Lowest and highest in 30 days
- 2.78 ft – 4.27 ft
- Lowest and highest in 12 months
- 2.42 ft – 5.80 ft
- Highest on record
- 21.80 ftAugust 19, 1955
Floating and fishing near Pomperaug River at Southbury
Normal flows mean predictable rapids and good access at most put-ins.
Flood stage here is 9.00 ft, 5.89 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.
What happens at each level
- 12.00 ft
- Multiple roads flooded causing multiple road closures, such as Old Waterbury road at Church road, West Flat Hill road at Purchase Brook road, Stillson road, Main street at Main street north intersection. Route 6 at Woodbury line, State route 172 between Horse Fence Hill and Southbury Training School and Old Field road at Bullet Hill Brook.
- 11.00 ft
- Multiple roads will begin to flood causing closures, such as Old Waterbury road at Church road, West Flat Hill road at Purchase Brook road, Stillson road, Main street at Main street north intersection. Route 6 at Woodbury line.
- 10.00 ft
- Flooding will begin along River Trail and Route 172 causing street closures.
- 9.00 ft
- River over its bank will begin flooding properties yards along River Trail and Old Field Road.
- 3.11 ft
- Right now
Impact statements from the U.S. National Weather Service.
Highest crests on record
| Rank | Level | Date |
|---|---|---|
| 1 | 21.80 ft | August 19, 1955 |
| 2 | 17.66 ft | March 7, 2011 |
| 3 | 15.92 ft | April 4, 1987 |
| 4 | 14.18 ft | June 5, 1982 |
| 5 | 13.85 ft | April 16, 2007 |
| 6 | 12.82 ft | April 23, 2006 |
| 7 | 12.71 ft | October 20, 1989 |
| 8 | 11.63 ft | January 27, 1996 |
| 9 | 10.94 ft | August 22, 1994 |
| 10 | 10.92 ft | March 22, 1980 |
Weather at the gauge
The forecast is not available right now.
Map
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Weekeepeemee River at HotchkissvilleRiver gauge, Weekeepeemee River | 2.42 ft | High | −0.03 ft | 5.3 mi |
| Pootatuck River at Sandy HookRiver gauge, Pootatuck River | 27.0 cfs | Normal | −0.9 cfs | 5.3 mi |
| Pootatuck River at BerkshireRiver gauge, Pootatuck River | 19.7 cfs | Normal | −1.2 cfs | 5.8 mi |
| Nonewaug River at MinortownRiver gauge, Nonewaug River | 3.16 ft | Very high | −0.04 ft | 7 mi |
| Housatonic River at StevensonRiver gauge, Housatonic River | 2.59 ft | Low | +0.03 ft | 7 mi |
| Naugatuck River at Beacon FallsRiver gauge, Naugatuck River | 1.78 ft | Normal | −0.04 ft | 9 mi |
| Still River at Route 7 at Brookfield CenterRiver gauge, Still River | 7.18 ft | Below flood stage | ±0 | 9 mi |
| Naugatuck River at WaterburyRiver gauge, Naugatuck River | 138 cfs | Normal | −10.0 cfs | 10 mi |
Questions and answers
How does the Pomperaug River at Southbury compare with last year?
It is 0.63 ft higher than on the same day last year, when the reading was 2.48 ft.
What is flood stage for the Pomperaug River at Southbury?
The official flood stage is 9.00 ft. The level is currently 5.89 ft below it.
What is a normal level for the Pomperaug River at Southbury in mid-October?
The median for mid-October is 2.84 ft. In 8 years out of 10 the reading falls between 2.43 ft and 3.79 ft, based on 26 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 Pomperaug River at Southbury today?
On Oct 20, 2026, 03:00 AM EDT, the water level was 3.11 ft. Down 0.05 ft over the last 24 hours.
Is Pomperaug River at Southbury rising or falling?
Down 0.05 ft over the last 24 hours. Down 0.14 ft over the last 7 days.
Is the level of Pomperaug River at Southbury normal?
Normal for mid-October. Compared with 26 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:01204000(Agency page)- Coordinates
41.48194, -73.22457(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 | 3.11 ft | 2026-10-20 07:00 | Provisional |
| Flow | 83.2 cfs | 2026-10-20 07:00 | Provisional |
Download
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How to cite
U.S. Geological Survey: Pomperaug River at Southbury (usgs:01204000). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/connecticut/pomperaug-river-at-southbury
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