Summary
Total streamflow across the
Naugatuck River
was last observed at
1,036
cfs, and is expected to yield approximately
2,055
acre-ft of water today; about 86%
of normal.
Average streamflow for this time of year is
1,211 cfs,
with recent peaks last observed
on
2021-09-02 when daily discharge volume was observed at
14,338 cfs.
Maximum discharge along the river is currently at the
Naugatuck River At Beacon Falls
reporting a streamflow rate of 761 cfs.
This is also the highest stage along the Naugatuck River, with a gauge stage of
3.1 ft at this location.
This river is monitored from 2 different streamgauging stations along the Naugatuck River, the highest being situated at an altitude of 378 ft, the
Naugatuck River At Thomaston.
River Details
| Last Updated | 2025-12-21 |
| Discharge Volume | 2,055 ACRE-FT |
| Streamflow |
1,036.0 cfs
-1719.0 cfs (-62.4%) |
| Percent of Normal | 85.55% |
| Maximum |
14,338.0 cfs
2021-09-02 |
| Seasonal Avg | 1,211 cfs |
River Streamflow Levels
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Naugatuck River At Thomaston
USGS 01206900 |
275 cfs | 2.67 ft | -67.46 | |||||
|
Naugatuck River At Beacon Falls
USGS 01208500 |
761 cfs | 3.1 ft | -60.16 |
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile
The Naugatuck River is a 40.2-mile-long (64.7 km) river in the U.S. state of Connecticut. Its waters carve out the Naugatuck River Valley in the western reaches of the state, flowing generally due south and eventually emptying into the Housatonic River at Derby, Connecticut and thence 11 miles (18 km) to Long Island Sound. The Plume and Atwood Dam in Thomaston, completed in 1960 following the Great Flood of 1955, creates a reservoir on the river and is the last barrier to salmon and trout migrating up from the sea.