Housatonic River at Stevenson, CT
River level and flood forecast · Fairfield County
The river is 4.1 ft below flood stage (11 ft).
Forecast to fall to 4.8 ft by Thu, Oct 15, 8 AM.
Flow: 4,230 cubic feet per second (USGS).
Much higher than normal for October 13.
Usual for October 13: 460 to 1,820 cubic feet per second (the middle half of 98 years).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 11:34 AM. Forecasts change as rain falls and as upstream water arrives.
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An email when the National Weather Service forecasts Housatonic River at Stevenson to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 20 ft |
| Moderate flood stage | 15 ft |
| Flood stage | 11 ft |
| Action stage | 8 ft |
| Record crest (August 19, 1955) | 24.5 ft |
What floods at each level
From the National Weather Service, highest first.
- 20 ftMajor flood stage with widespread inundation of low lying properties from Stevenson south to Bridgeport.
- 15 ftModerate flood stage with numerous homes in the Maples area of Shelton affected.
- 11.5 ftWater reaches the Maples area of Shelton.
- 11 ftFlood stage.
- 9.5 ftWater reaches low lying areas in the Riverside neighborhood of Oxford.
- 8 ftThe river is about a foot above the top end of normal generation levels.
- 7 ftThe river is at the top end of normal generation levels.
- 2 ftThe river is at the low end of normal generation levels.
Highest crests on record
- 24.5 ft — August 19, 1955
- 24.5 ft — October 16, 1955
- 23.5 ft — March 12, 1936
- 22.36 ft — May 30, 1984
- 21.68 ft — March 7, 2011
Recent crests: 12.08 ft (March 12, 2026) · 11.96 ft (May 10, 2025) · 11.76 ft (May 6, 2025) · 20.51 ft (August 18, 2024) · 12.48 ft (March 24, 2024)
Highest flow on record
75,800 cubic feet per second — October 16, 1955. From the USGS's yearly peaks since 1924.
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (STVC3); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.