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 276–300 of 936
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Ravenswood Dam New Haven County | 20 | — | Significant | Satisfactory |
| Ratlum Fish and Game Club Pond Dam Hartford County | 12 | — | Significant | Not Rated |
| Rainer Pond Dam Litchfield County | 11 | — | Significant | Not Rated |
| Ragged Hill Pond Dam Windham County | 20 | — | Significant | Fair |
| Rader Pond Dam Litchfield County | 12 | — | Significant | Unsatisfactory |
| Quonnipaug Lake Dam New Haven County | 5 | 1850 | Significant | Poor |
| Quist Pond Dam Litchfield County | 12 | 1955 | Significant | Not Rated |
| Quirks Pond Dam New Haven County | 5 | — | Significant | Not Rated |
| Quassett Lake Road Dam Windham County | 14 | 1855 | Significant | Fair |
| Quassapaug Lake Dam New Haven County | 24 | 1900 | Significant | Fair |
| Putnam Park Pond Dam Fairfield County | 8 | 1900 | Significant | Satisfactory |
| Putnam Memorial Park Pond Dam Fairfield County | 8 | — | Significant | Poor |
| Punch Brook Pond Dam Hartford County | 10 | — | Significant | Poor |
| Pritchard Pond Dam New Haven County | 9 | 1890 | Significant | Not Rated |
| Prior Fish & Wildlife Dam Windham County | 10 | — | Significant | Not Rated |
| Pratt Read Dam Middlesex County | 11 | 1860 | Significant | Satisfactory |
| Pratt Pond Dam Litchfield County | 8 | — | Significant | Not Rated |
| Powers Lake Dam New London County | 25 | 1870 | Significant | Poor |
| Pound Pond Dam Fairfield County | 18 | — | Significant | Fair |
| Potash Pond Dam Windham County | 21 | 1880 | Significant | Fair |
| Post Pond Dam Middlesex County | 8 | — | Significant | Fair |
| Porter Reservoir Dam Hartford County | 32 | 1902 | Significant | Satisfactory |
| Porter Pond Dam Windham County | 9 | — | Significant | Satisfactory |
| Poole Pond Dam Windham County | 16 | 1974 | Significant | Satisfactory |
| Pomperaug River Dam New Haven County | 8 | — | Significant | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.