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 26–50 of 53
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Macdonald Swamp Pond New London County | 10 | — | Low | Not Rated |
| Lake Nova New London County | 8 | 1930 | Low | Not Rated |
| Lake Cuheca Dam New London County | 7 | 1900 | Low | Not Rated |
| Kelsey Pond Dam New Haven County | 14 | — | Low | Not Rated |
| Jordan Mill Pond Dam New London County | 7 | 1900 | Low | Not Rated |
| Ivy Mountain Dam Litchfield County | 20 | — | Low | Fair |
| Indian Hollow Pond Dam Windham County | 9 | 1900 | Low | Not Rated |
| Hell Hollow Pond Dam New London County | 10 | — | Low | Fair |
| Haviland Millpond Dam Fairfield County | 12 | 1920 | Low | Not Rated |
| Greenville New London County | 15 | 1888 | Low | Satisfactory |
| Great Pond Dam Hartford County | 9 | 1930 | Low | Not Rated |
| Goose Pond Dam Litchfield County | 11 | — | Low | Not Rated |
| Goodhall Dam Tolland County | 10 | 1976 | Low | Not Rated |
| Fosters Pond Hartford County | 13 | 1920 | Low | Not Rated |
| Drabik Pond Dam New London County | 15 | — | Low | Not Rated |
| Dayville Emergency Spillway Windham County | 8 | 1925 | Low | Satisfactory |
| Day Pond(Colchester) New London County | 10 | 1936 | Low | Not Rated |
| Corbin Wildlife Marsh Dam Windham County | 13 | 1967 | Low | Not Rated |
| Comstock Pond Dam Middlesex County | 7 | 1874 | Low | Not Rated |
| Buckley Dam Litchfield County | 13 | 1957 | Low | Fair |
| Brush Reservoir Dam Fairfield County | 23 | 1925 | Low | Poor |
| Brunswick Windham County | 19 | 1891 | Low | Fair |
| Bromley Pond Dam Litchfield County | 12 | — | Low | Fair |
| Bloomfield Flood Control Site #3a Dam Hartford County | 16 | 1969 | Low | Satisfactory |
| Blissville Pond Dam New London County | 11 | 1930 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.