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 176–200 of 254
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Quassett Lake Road Dam Windham County | 14 | 1855 | Significant | Fair |
| Quillinan Reservoir Dam New Haven County | 19 | 1880 | High | Fair |
| Ragged Hill Pond Dam Windham County | 20 | — | Significant | Fair |
| Red Cedar Lake Dam New London County | 9 | 1900 | Significant | Fair |
| Ridge Pond Dam Fairfield County | 6 | — | Significant | Fair |
| Risley Reservoir Dam (No Longer Using 14605) Tolland County | 28 | 1853 | Significant | Fair |
| Robinson Pond Dam Windham County | 14 | 1966 | Significant | Fair |
| Rogers Corporation Dam Windham County | 12 | 1900 | Significant | Fair |
| Romanek Pond Dam Windham County | 10 | 1969 | Significant | Fair |
| Roman Pond Dam Tolland County | 12 | — | High | Fair |
| Rose Hill Ave Pond Dam Fairfield County | 19 | — | Significant | Fair |
| Ross Management Area Pond Dam Windham County | 4 | 1963 | Significant | Fair |
| Round Hill Pond Dam New Haven County | 12 | 1961 | Significant | Fair |
| Rugg Brook Reservoir Dam Litchfield County | 36 | 1890 | Significant | Fair |
| Savin Lake Dam New London County | 18 | 1920 | Significant | Fair |
| Scarletts Mill Dam Hartford County | 15 | — | Significant | Fair |
| Schriber Park (Great Brook Dam) Middlesex County | 15 | — | Significant | Fair |
| Schwartz Pond Dam Litchfield County | 20 | 1964 | Significant | Fair |
| Serenity Pond Dam Fairfield County | 12 | 1928 | Significant | Fair |
| Seyer Dam Fairfield County | 11 | 1900 | Significant | Fair |
| Seymour Reservoir #1 Dam New Haven County | 26 | 1898 | Significant | Fair |
| Seymour Reservoir #2 Dam New Haven County | 31 | 1948 | Significant | Fair |
| Seymour Reservoir #3 Dam New Haven County | 42 | 1910 | Significant | Fair |
| Shadow Lake Dam Fairfield County | 25 | 1937 | Significant | Fair |
| Shaker Pond Dam Hartford County | 12 | 1880 | Significant | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.