Naugatuck River at Beacon Falls, CT
River level and flood forecast · New Haven County
The river is 9.0 ft below flood stage (12 ft).
Forecast to fall to 1.9 ft by Thu, Oct 15, 8 AM.
Flow: 678 cubic feet per second (USGS).
Much higher than normal for October 13.
Usual for October 13: 99 to 301 cubic feet per second (the middle half of 104 years).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 11:14 AM. Forecasts change as rain falls and as upstream water arrives.
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An email when the National Weather Service forecasts Naugatuck River at Beacon Falls to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 14 ft |
| Moderate flood stage | 13 ft |
| Flood stage | 12 ft |
| Action stage | 11.5 ft |
| Record crest (August 28, 2011) | 14.36 ft |
What floods at each level
From the National Weather Service, highest first.
- 21 ftFlooding begins along Route 8 from the Naugatuck Town Line downstream to the Seymour Town Line.
- 20 ftThe river level just touches the underside of the bridge on Bridge Street.
- 12 ftFlooding begins in the upstream towns of Waterbury and Naugatuck.
Highest crests on record
- 14.36 ft — August 28, 2011
- 13.78 ft — January 25, 1979
- 12.95 ft — June 5, 1982
- 12.6 ft — March 7, 2011
- 12.21 ft — April 23, 2006
Recent crests: 14.36 ft (August 28, 2011) · 12.6 ft (March 7, 2011) · 12.1 ft (April 16, 2007) · 12.21 ft (April 23, 2006) · 12.95 ft (June 5, 1982)
Highest flow on record
106,000 cubic feet per second — August 19, 1955. From the USGS's yearly peaks since 1920.
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (BEAC3); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.