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
Tallest Dams
- Colebrook River Dam223 ft
- Mad River Flood Control Dam178 ft
- Nepaug Dam156 ft
- Shepaug 138 ft
- Saville Dam137 ft
High Hazard Dams
- Colebrook River DamHigh
- Mad River Flood Control DamHigh
- Nepaug DamHigh
- Shepaug High
- Saville DamHigh
Poor Condition Dams
All Dams in Connecticut
Showing 976–1000 of 1,225
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Darrow Pond Dam New London County | 8 | 1880 | Significant | Fair |
| Cyril Johnson Mill Dam Tolland County | 15 | — | Significant | Not Rated |
| Cutler Pond Dam Litchfield County | 12 | — | Significant | Not Rated |
| Curtis Pond Dam Fairfield County | 15 | 1856 | Significant | Satisfactory |
| Crystal Pond Park Dam Windham County | 13 | 1976 | Significant | Poor |
| Crystal Pond Dam Windham County | 31 | 1900 | Significant | Fair |
| Crystal Pond Dam Windham County | 8 | 1940 | Significant | Poor |
| Crystal Lake Reservoir Dam Litchfield County | 13 | 1892 | Significant | Fair |
| Crystal Lake Dam Middlesex County | 50 | 1850 | High | Poor |
| Crystal Lake Dam Litchfield County | 36 | 1878 | Significant | Fair |
| Crystal Lake Dam Tolland County | 11 | 1900 | Significant | Not Rated |
| Cross Pond Dam Fairfield County | 11 | — | Significant | Not Rated |
| Crossing At Lisbon Detention Dam New London County | 16 | 2008 | Significant | Satisfactory |
| Crescent Lake Dam Hartford County | 13 | 1900 | Significant | Satisfactory |
| Cradnall Property Dam New London County | 5 | — | Significant | Not Rated |
| Cos Cob Pond Dam Fairfield County | 8 | — | Significant | Fair |
| Corbin Wildlife Marsh Dam Windham County | 13 | 1967 | Low | Not Rated |
| Cooper Pond Dam Fairfield County | 6 | — | Significant | Not Rated |
| Cook Pond Dam Tolland County | 10 | — | Significant | Not Rated |
| Converse Lake Dam Fairfield County | 30 | 1900 | High | Fair |
| Conrad Pond Dam New Haven County | 22 | — | High | Satisfactory |
| Congdon Pond Dam New London County | 35 | 1900 | Significant | Poor |
| Comstock Pond Dam Middlesex County | 7 | 1874 | Low | Not Rated |
| Compensating Reservoir Dam Litchfield County | 75 | 1920 | High | Fair |
| Columbia Lake Dam Tolland County | 28 | 1865 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.