RIVER GAUGE · NAUGATUCK RIVER
Naugatuck River at Beacon Falls
New Haven County, Connecticut
Water level1.34 ft
Flow90 cfs
Last readingSep 16, 2026, 4:30 PM UTC (last recorded)
Action11.5 ft
Minor flood12 ft
Moderate flood13 ft
Major flood14 ft
The past week
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What floods at each level
- 21 ft
Flooding begins along Route 8 from the Naugatuck Town Line downstream to the Seymour Town Line.
- 20 ft
The river level just touches the underside of the bridge on Bridge Street.
- 12 ft
Flooding begins in the upstream towns of Waterbury and Naugatuck.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Aug 18, 1955 | 25.7 ft | 106,000 cfs |
| Aug 28, 2011 | 14.36 ft | — |
| Mar 11, 1936 | 14.1 ft | 23,300 cfs |
Get an alert when Naugatuck River rises
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