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 801–825 of 936
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Calkinstown Reservoir Dam Litchfield County | 15 | — | Significant | Not Rated |
| Cady Pond Dam Windham County | 13 | 1865 | Significant | Satisfactory |
| Button Mill Pond Dam Fairfield County | 10 | — | Significant | Fair |
| Butterworth Lake Dam New Haven County | 15 | 1961 | Significant | Fair |
| Butternut Hollow Pond Dam Middlesex County | 21 | 1935 | Significant | Satisfactory |
| Bush Pond Dam New London County | 12 | — | Significant | Fair |
| Bush Hill Pond Windham County | — | — | Significant | Not Rated |
| Burdick Bros Dam Windham County | 7 | — | Significant | Fair |
| Bunnell Pond Litchfield County | 7 | — | Significant | Not Rated |
| Bulls Bridge Mountainside Spillway Litchfield County | 20 | 1902 | Significant | Satisfactory |
| Bull Pond Dam Dam Litchfield County | 4 | 1900 | Significant | Not Rated |
| Buckingham Reservoir Dam Hartford County | 30 | 1925 | Significant | Fair |
| Brunswick School Dam Fairfield County | — | — | Significant | Not Rated |
| Browns Brook Dam Fairfield County | 14 | 1836 | Significant | Fair |
| Brown Pond Dam Tolland County | 7 | — | Significant | Not Rated |
| Brown Pond Dam Windham County | 12 | 1980 | Significant | Satisfactory |
| Brown Hill Dam Windham County | 7 | — | Significant | Fair |
| Brownell Pond Dam Middlesex County | 8 | — | Significant | Fair |
| Brophy Pond Dam Litchfield County | 15 | 1900 | Significant | Not Rated |
| Brodie Pond Dam New London County | 13 | — | Significant | Not Rated |
| Broad Brook Mill Pond Dam Hartford County | 21 | 1880 | Significant | Not Rated |
| Bristol Reservoir #4 Dam Litchfield County | 40 | 1906 | Significant | Satisfactory |
| Bristol Reservoir #3 Dam Litchfield County | 14 | — | Significant | Poor |
| Bristol Reservoir #2 Dam Litchfield County | 33 | 1889 | Significant | Satisfactory |
| Bristol Myers Squibb Dam New Haven County | 12 | — | Significant | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.