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 51–75 of 254
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Crystal Lake Reservoir Dam Litchfield County | 13 | 1892 | Significant | Fair |
| Crystal Pond Dam Windham County | 31 | 1900 | Significant | Fair |
| Darrow Pond Dam New London County | 8 | 1880 | Significant | Fair |
| Deans Reservoir Dam New London County | 15 | 1888 | High | Fair |
| Dennis Pond Dam Tolland County | 14 | 1880 | Significant | Fair |
| Dividend Pond-Upper Dam Hartford County | 24 | 1870 | Significant | Fair |
| Dobsonville Pond Dam Tolland County | 26 | 1900 | Significant | Fair |
| Dodson Pond Dam New London County | 22 | 1962 | Significant | Fair |
| Dominick'S Pond Dam Fairfield County | 5 | — | Significant | Fair |
| Dooley Pond Dam Middlesex County | 24 | 1870 | High | Fair |
| Dot Pond Dam Hartford County | 14 | — | Significant | Fair |
| Doyles Pond Dam Fairfield County | 8 | — | Significant | Fair |
| Duffield Dam New Haven County | 12 | 1880 | Significant | Fair |
| Eagleville Dam Tolland County | 18 | 1860 | High | Fair |
| Easton Reservoir Dam Fairfield County | 123 | 1926 | High | Fair |
| Ella Fohs Camp Dam Litchfield County | 13 | 1900 | Significant | Fair |
| Ellithorpe Flood Control Site #5 Dam Tolland County | 29 | 1968 | High | Fair |
| Elmville Dam Windham County | 7 | 1900 | Significant | Fair |
| Eureka Lake Dam Fairfield County | 18 | 1878 | High | Fair |
| Fairy Lake Dam New London County | 20 | 1956 | Significant | Fair |
| Florsheim Pond Dam Fairfield County | 10 | 1874 | Significant | Fair |
| Foote Hill Farm Dam Tolland County | 18 | 1973 | Significant | Fair |
| Fountain Lake Dam New Haven County | 15 | 1888 | High | Fair |
| Friedman Pond Dam Litchfield County | 3 | 1957 | Significant | Fair |
| Fuller Dam Windham County | 13 | — | Significant | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.