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 751–775 of 936
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Cos Cob Pond Dam Fairfield County | 8 | — | Significant | Fair |
| Cooper Pond Dam Fairfield County | 6 | — | Significant | Not Rated |
| Cook Pond Dam Tolland County | 10 | — | Significant | Not Rated |
| Congdon Pond Dam New London County | 35 | 1900 | Significant | Poor |
| Collins Pond Dam Fairfield County | 10 | — | Significant | Poor |
| Collins Company Lower Dam Hartford County | 33 | — | Significant | Satisfactory |
| Cold Brook Reservoir Dam Hartford County | 13 | 1919 | Significant | Fair |
| Coginchaug River Dam #1 Middlesex County | 12 | — | Significant | Satisfactory |
| Coderre Pond Dam Windham County | 8 | — | Significant | Poor |
| Cockaponset Pond Dam Middlesex County | 10 | — | Significant | Satisfactory |
| Cobbs Mill Pond Dam Fairfield County | 21 | 1892 | Significant | Fair |
| Cobble Hill Pond Dam Litchfield County | 8 | — | Significant | Not Rated |
| Coat Pond Dam Fairfield County | 6 | — | Significant | Not Rated |
| Clunde Pond Dam Litchfield County | 7 | — | Significant | Not Rated |
| Clarks Pond Dam New Haven County | 30 | — | Significant | Satisfactory |
| Clarks Pond Dam New Haven County | 10 | — | Significant | Fair |
| Clark Pond Dam New Haven County | 8 | — | Significant | Not Rated |
| Clark Falls Dam New London County | 11 | — | Significant | Fair |
| City Pond Dam New London County | 31 | — | Significant | Poor |
| City Hall Pond Dam New Haven County | 13 | — | Significant | Not Rated |
| Cigar Pond Dam Tolland County | 9 | — | Significant | Not Rated |
| Cider Mill Pond Dam Tolland County | 10 | — | Significant | Not Rated |
| Choate Upper Pond Dam | 8 | — | Significant | Not Rated |
| Choate Lower Pond Dam | 11 | 1900 | Significant | Not Rated |
| Chestnut Hill Pond Dam Fairfield County | 5 | — | Significant | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.