Connecticut Dams

1,225 dams tracked by the National Inventory of Dams

Total Dams

1,225

High Hazard

236

19.3%

Poor / Unsatisfactory

126

Average Age

115 yrs

Hazard Classification

High236 (19.3%)
Significant936 (76.4%)
Low53 (4.3%)

Condition Assessment

Satisfactory474 (38.7%)
Fair254 (20.7%)
Poor / Unsatisfactory126 (10.3%)
Not Rated371 (30.3%)

Federal

9

State

169

Local

254

Private

697

All Dams in Connecticut

Showing 226250 of 1,225

Dam NameHeight (ft)YearHazardCondition
Columbia Lake Dam

Tolland County

281865HighSatisfactory
Compensating Reservoir Dam

Litchfield County

751920HighFair
Comstock Pond Dam

Middlesex County

71874LowNot Rated
Congdon Pond Dam

New London County

351900SignificantPoor
Conrad Pond Dam

New Haven County

22HighSatisfactory
Converse Lake Dam

Fairfield County

301900HighFair
Cook Pond Dam

Tolland County

10SignificantNot Rated
Cooper Pond Dam

Fairfield County

6SignificantNot Rated
Corbin Wildlife Marsh Dam

Windham County

131967LowNot Rated
Cos Cob Pond Dam

Fairfield County

8SignificantFair
Cradnall Property Dam

New London County

5SignificantNot Rated
Crescent Lake Dam

Hartford County

131900SignificantSatisfactory
Crossing At Lisbon Detention Dam

New London County

162008SignificantSatisfactory
Cross Pond Dam

Fairfield County

11SignificantNot Rated
Crystal Lake Dam

Tolland County

111900SignificantNot Rated
Crystal Lake Dam

Litchfield County

361878SignificantFair
Crystal Lake Dam

Middlesex County

501850HighPoor
Crystal Lake Reservoir Dam

Litchfield County

131892SignificantFair
Crystal Pond Dam

Windham County

81940SignificantPoor
Crystal Pond Dam

Windham County

311900SignificantFair
Crystal Pond Park Dam

Windham County

131976SignificantPoor
Curtis Pond Dam

Fairfield County

151856SignificantSatisfactory
Cutler Pond Dam

Litchfield County

12SignificantNot Rated
Cyril Johnson Mill Dam

Tolland County

15SignificantNot Rated
Darrow Pond Dam

New London County

81880SignificantFair
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.