Tidora

Connecticut River at Middle Haddam

National Weather Service gauge MHDC3 · Connecticut · Middlesex County · 41.5418, -72.5532 · USGS 01193050

Flood levels

Official flood levels at this gauge: action stage begins at 5.0 ft; minor flooding begins at 7.0 ft; moderate flooding begins at 10.5 ft; major flooding begins at 13.0 ft.

Action stage5.0 ft
Minor flooding7.0 ft
Moderate flooding10.5 ft
Major flooding13.0 ft

Highest recorded crests

What the water does

National Weather Service impact statements for this gauge, in the Weather Service's own words.

7.0 ftFlooding 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.
8.0 ftFlooding 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.
9.5 ftFlooding 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.
10.5 ftFlooding 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.
11.5 ftFlooding 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.
13.0 ftMajor 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.
15.0 ftSignificant 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.
16.5 ftThis 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.
18.0 ftThis 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.

Forecast office: NWS Norton · River Forecast Center: Northeast River Forecast Center.

Tidora wave T logo

Connecticut River at Middle Haddam in your pocket

Tidora puts this spot on your Home Screen and Lock Screen with free widgets, and sends free flood alerts before the water reaches the levels that matter to you. No account, no subscription needed for either.

Download Tidora on the App Store

Tidora is preparing for launch; these pages go fully live when the app ships.

Nearby stations and gauges