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 126–150 of 474
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Far Mill River Dam Fairfield County | 19 | — | Significant | Satisfactory |
| Farmington Reservoir Dam Hartford County | 8 | 1895 | High | Satisfactory |
| Farm River (Northford) Diversion New Haven County | 12 | — | Significant | Satisfactory |
| Farringtons Pond Dam Fairfield County | 20 | 1900 | Significant | Satisfactory |
| Fedex Detention Basin Dam Tolland County | 12 | — | Significant | Satisfactory |
| Five Mile Windham County | 17 | 1855 | Significant | Satisfactory |
| Flanders Wildlife Center Dam Litchfield County | 9 | 1974 | Significant | Satisfactory |
| Folly Pond Dam Hartford County | 9 | — | Significant | Satisfactory |
| Ford Pond Dam Fairfield County | 4 | — | Significant | Satisfactory |
| Foster Pond Dam Middlesex County | 17 | 1900 | Significant | Satisfactory |
| Freemans Pond Dam Fairfield County | 14 | — | Significant | Satisfactory |
| Freshwater Pond Dam Hartford County | 20 | 1900 | High | Satisfactory |
| Frog Pond Dam Windham County | 10 | 1870 | Significant | Satisfactory |
| Frye Lake Dam Fairfield County | 10 | 1930 | Significant | Satisfactory |
| Gale Pond Dam Hartford County | 10 | 1930 | Significant | Satisfactory |
| Gardner Lake Dam New London County | 10 | 1900 | Significant | Satisfactory |
| Gay City Pond Dam Tolland County | 10 | — | Significant | Satisfactory |
| Gaylord Pond Dam Litchfield County | 12 | 1900 | Significant | Satisfactory |
| Glasgo Pond Dam New London County | 26 | 1860 | High | Satisfactory |
| Goodwin Hartford County | 125 | 1960 | High | Satisfactory |
| Goss Brook Dam Windham County | 39 | 1963 | High | Satisfactory |
| Grannis Pond Dam Hartford County | 9 | — | Significant | Satisfactory |
| Graves Dam New London County | 11 | — | Significant | Satisfactory |
| Great Hill Road Pond Dam New Haven County | 18 | — | Significant | Satisfactory |
| Great Swamp Flood Control Dam Fairfield County | 12 | 1979 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.