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 1201–1225 of 1,225
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Arrigoni Pond Dam Middlesex County | 21 | 1945 | Significant | Satisfactory |
| Armstrong Park Pond Dam Fairfield County | 16 | — | Significant | Satisfactory |
| Armitage Pond Dam Windham County | 4 | — | Significant | Fair |
| Aqua Pond Dam Windham County | 11 | — | Significant | Satisfactory |
| Angus Park Pond Dam Hartford County | 16 | 1920 | Significant | Fair |
| Angulus Pond Dam Fairfield County | 14 | — | Significant | Not Rated |
| Andover Lake Dam Tolland County | 18 | 1926 | Significant | Satisfactory |
| Amston Lake Dam Tolland County | 10 | 1910 | Significant | Satisfactory |
| Amidon Farm Dam Windham County | 12 | — | Significant | Not Rated |
| American Felt Dam Fairfield County | 37 | 1867 | High | Satisfactory |
| American Can Company Dam Fairfield County | 53 | 1970 | High | Satisfactory |
| Allen Pond Dam Litchfield County | 15 | — | Significant | Satisfactory |
| Aldon Mill Pond Dam Tolland County | 25 | 1920 | Significant | Satisfactory |
| Alden Pond Dam Fairfield County | 10 | — | Significant | Not Rated |
| Alberti Forman Dam Hartford County | 8 | — | Significant | Not Rated |
| Ajello'S Pond New Haven County | 5 | — | Significant | Not Rated |
| Ahlberg Pond Dam Tolland County | 13 | — | Significant | Poor |
| Addison Pond Dam Hartford County | 18 | 1820 | Significant | Not Rated |
| Addie Road Pond Dam Litchfield County | 15 | — | Significant | Not Rated |
| Adder Reservoir Middlesex County | 28 | 1934 | High | Fair |
| Acme Pond Dam Windham County | 16 | 1846 | High | Satisfactory |
| Above Pond Dam Fairfield County | 14 | — | Significant | Satisfactory |
| Abby Road Pond Dam Hartford County | 4 | — | Significant | Fair |
| Abbott'S Pond Dam Windham County | 28 | 1960 | Significant | Satisfactory |
| Abbotts Pond Dam New Haven County | 9 | — | Significant | Not Rated |
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.