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 351–375 of 474
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Farm Brook Flood Control Site #2a Dam New Haven County | 29 | — | High | Satisfactory |
| Farm Brook Flood Control Site #1 Dam New Haven County | 11 | 1974 | High | Satisfactory |
| Falls Village Litchfield County | 15 | 1913 | Significant | Satisfactory |
| Fall Mountain Lake Dam Litchfield County | 12 | 1900 | Significant | Satisfactory |
| Fairview Reservoir Dam and Dikes New London County | 30 | 1868 | High | Satisfactory |
| Exeter Energy Storage Basin Dam Windham County | 7 | 2003 | Significant | Satisfactory |
| Eutro Pond Dam Fairfield County | 12 | — | Significant | Satisfactory |
| Ensign Bickford Dam Hartford County | 21 | 1900 | Significant | Satisfactory |
| Endres Pond Dam New Haven County | 8 | — | Significant | Satisfactory |
| Elmere Reservoir Dam Hartford County | 24 | — | Significant | Satisfactory |
| Ellis Flood Control Site #2 Dam Tolland County | 38 | 1960 | High | Satisfactory |
| Echo Lake Dam Litchfield County | 24 | 1958 | High | Satisfactory |
| E.A. Whiteford Dam New London County | 10 | 1964 | Significant | Satisfactory |
| East Mountain Reservoir Dam New Haven County | 35 | 1880 | High | Satisfactory |
| East Lake Reservoir Dam Fairfield County | 47 | 1855 | High | Satisfactory |
| East Branch Flood Control Dam Litchfield County | 92 | — | High | Satisfactory |
| Drop Pond Dam Middlesex County | 22 | — | Significant | Satisfactory |
| Drobney Dam Tolland County | 24 | 1970 | Significant | Satisfactory |
| Douglas Road Pond Dam Windham County | 8 | — | Significant | Satisfactory |
| Doolittle Lake Dam Litchfield County | 10 | 1920 | Significant | Satisfactory |
| Deuses Pond Dam Middlesex County | 20 | 1916 | Significant | Satisfactory |
| Deer Lake Dam Middlesex County | 12 | 1920 | Significant | Satisfactory |
| Deep River Reservoir Dam New London County | 62 | 1926 | High | Satisfactory |
| Deep Hollow Reservoir Dam Middlesex County | 28 | 1854 | Significant | Satisfactory |
| Dayville Emergency Spillway Windham County | 8 | 1925 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.