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 101–125 of 474
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Shenipsit Flood Control Site #6 Dam Tolland County | 29 | 1961 | High | Satisfactory |
| Serra Pond Dam Litchfield County | 15 | 1972 | Significant | Satisfactory |
| Scovill Reservoir Dam Middlesex County | 21 | 1860 | High | Satisfactory |
| Scoville Reservoir Dike New Haven County | 15 | — | High | Satisfactory |
| Scotland Windham County | 37 | 1909 | Low | Satisfactory |
| Schreeder Pond Dam Middlesex County | 11 | 1900 | Significant | Satisfactory |
| Sawmill Pond Dam New London County | 12 | 1870 | High | Satisfactory |
| Saville Dam Litchfield County | 137 | 1940 | High | Satisfactory |
| Sandy Hook Fairfield County | 35 | 1905 | Significant | Satisfactory |
| Samuel P. Senior Dam Fairfield County | 130 | 1941 | High | Satisfactory |
| Samuel Bargh Reservoir Dam Fairfield County | 75 | 1955 | High | Satisfactory |
| Samp Mortar Reservoir Dam Fairfield County | 29 | 1901 | High | Satisfactory |
| Saddle Pond Dam Fairfield County | 11 | 1920 | Significant | Satisfactory |
| Ross Pond Dam Windham County | 17 | 1900 | Significant | Satisfactory |
| Rosers Pond Dam Hartford County | 12 | — | Significant | Satisfactory |
| Rose Hill Detention Basin Dam Hartford County | 11 | 1988 | Significant | Satisfactory |
| Rogers Pond Dam Middlesex County | 9 | 1850 | Significant | Satisfactory |
| Rogers Lake Dam New London County | 7 | 1822 | Significant | Satisfactory |
| Rocky River Main Dam Litchfield County | 107 | 1929 | High | Satisfactory |
| Rockwood Lake North Street Dike Fairfield County | 12 | 1893 | High | Satisfactory |
| Rockland Pond Dam New London County | 10 | 1900 | Significant | Satisfactory |
| Rock Lake Dam Fairfield County | 37 | 1875 | Significant | Satisfactory |
| Robertsville Dam Litchfield County | 29 | 1887 | Significant | Satisfactory |
| Roberts Pond Dam Fairfield County | 8 | — | Significant | Satisfactory |
| Rizzo Pond Dam Litchfield County | 18 | 1964 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.