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 51–75 of 474
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Black Spruce Pond Dam Windham County | 6 | 1960 | Significant | Satisfactory |
| Blast & Cast Pond Dam Hartford County | 20 | 1953 | Significant | Satisfactory |
| Blind Pond Dam Fairfield County | 9 | — | Significant | Satisfactory |
| Bloomfield Flood Control Site #3a Dam Hartford County | 16 | 1969 | Low | Satisfactory |
| Bloomfield Flood Control Site #3 Dam Hartford County | 29 | 1962 | High | Satisfactory |
| Blue Lake Dam New London County | 10 | 1900 | Significant | Satisfactory |
| Boggs Pond Dam Fairfield County | 14 | 1900 | Significant | Satisfactory |
| Bogue Brook Reservoir Dam New London County | 21 | 1920 | Significant | Satisfactory |
| Border Pond Dam New London County | 6 | — | Significant | Satisfactory |
| Bradway Pond Dam Tolland County | 10 | — | Significant | Satisfactory |
| Bradway Reservoir Site #4 Dam Tolland County | 29 | 1961 | Significant | Satisfactory |
| Brewster Pond Dam Fairfield County | 13 | — | Significant | Satisfactory |
| Bristol Fish & Game Club Dam New Haven County | 20 | 1961 | Significant | Satisfactory |
| Bristol Myers Squibb Dam New Haven County | 12 | — | Significant | Satisfactory |
| Bristol Reservoir #1 Dam Hartford County | 25 | 1885 | High | Satisfactory |
| Bristol Reservoir #2 Dam Litchfield County | 33 | 1889 | Significant | Satisfactory |
| Bristol Reservoir #4 Dam Litchfield County | 40 | 1906 | Significant | Satisfactory |
| Bristol Reservoir #5 Dam Litchfield County | 60 | 1932 | High | Satisfactory |
| Bronson E. Lockwood Dam Litchfield County | 34 | 1958 | High | Satisfactory |
| Brown Pond Dam Windham County | 12 | 1980 | Significant | Satisfactory |
| Bugbee Flood Control Dam Hartford County | 20 | 1969 | High | Satisfactory |
| Bulls Bridge Mountainside Spillway Litchfield County | 20 | 1902 | Significant | Satisfactory |
| Burnt Hill Flood Control Dam Hartford County | 38 | 1966 | High | Satisfactory |
| Burr Pond Dam Litchfield County | 17 | 1935 | High | Satisfactory |
| Bushy Hill Pond Dam Middlesex County | 33 | 1871 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.