Major Flood
13 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
10.5 ft
Minor Flood
7 ft
Action Stage
5 ft
What Floods at Each Level
18 ft
This is a serious and life threatening flood episode. Follow the direction of your local emergency management officals. If asked to evacuate, do so immediately. All flood protection measures must be rushed to completion in flood prone areas. Widespread inundation is likely from Middletown and Portland downstream through Chester, Old Lyme and Old Saybrook.
16.5 ft
This is a serious and potentially life threatening flood episode. Follow the direction of your local emergency management officals. If asked to evacuate, do so immediately. All flood protection measures must be rushed to completion in flood prone areas.
15 ft
Significant flooding will continue to impact low lying homes and businesses along the river from Wethersfield south through Middle Haddam, downstream to the mouth of the river in Old Saybrook. A portion of Route 9 will flood near the Middletown Portland railroad bridge. Follow the directions of your local emergency management officals.
13 ft
Major river flooding will impact towns along the Connecticut River from Middletown and Portland downstream through Chester and Essex. Many roads near the river will be flooded. Some localized evacuations may be needed. Follow the directions of your local emergency management official. Know alternate routes for travel should roads in your area become flooded.
11.5 ft
Flooding will likely result in the evacuation of low lying areas along River Road in Cromwell and Meadow Road in Portland. Flooding will occur in the Harbor Park area. Flooding increases in surrounding towns along the river, from Middletown and Portland to the river mouth at Old Saybrook.
10.5 ft
Flooding continues to overspread sections of Portland and Middletown, as well as downstream towns including Chester and Essex. Some immediate river roads will be impassable. In Cromwell this usually impacts portions of River Road. In Rocky Hill, portions of Meadow Road will become impassable.
9.5 ft
Flooding closes most of Meadow Road, Route 17A, in the Gildersleeve section of Portland. Flooding impacts the Middletown Marina and Meadow Farms. In Cromwell, portions of River Road will be closed. In Rocky Hill, parts of Meadow Road will be impassable for a time. Flooding continues along the river southward through Essex.
8 ft
Flooding is expected in low lying sections along the Connecticut River from Wethersfield and Glastonbury downstream through Cromwell, Middletown and Portland. Boating interests should prepare for a period of swift river flows.
7 ft
Flooding is likely in the vicinity of Meadow Road, Route 17A, in the Gildersleeve section of Portland. A portion of this roadway will likely be closed. This includes the Exchange Club of Portland Fairgrounds. Boating interests should prepare for a period of swift river flows during this period.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Dec 21, 2023 | 11.2 ft | — |
| Jul 13, 2023 | 10.41 ft | 94,300 cfs |
| Mar 10, 2024 | 9.98 ft | — |
About This Gauge
USGS Site
NWS LID
MHDC3
River
Connecticut River
County
Middlesex, CT
Coordinates
41.5418°N, 72.5531°W
Get Flood Alerts for Connecticut River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Connecticut River at Middle Haddam?
The Connecticut River at Middle Haddam gauge is maintained by USGS (site 01193050) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Connecticut River at Middle Haddam?
The NWS-defined flood stage for Connecticut River at Middle Haddam is 7 feet. Action stage begins at 5 feet. Moderate flooding starts at 10.5 feet, and major flooding at 13 feet.
How do I get alerts when Connecticut River rises?
Download StormCast free on Google Play, go to River Gauges, and add Connecticut River at Middle Haddam to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Connecticut River at Middle Haddam gauge located?
The gauge is located in Middlesex County, Connecticut at coordinates 41.5418°N, 72.5531°W. USGS site number: 01193050. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Connecticut River
On This River
Upstream: Connecticut River at Hartford
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Gauge reading affected by ocean tides.
- Gauge reading may be affected by ice. Forecast flows are unadjusted for ice.