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 101–122 of 122
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Chestnut Hill Pond Dam Fairfield County | 5 | — | Significant | Poor |
| Chalkers Millpond Dam Middlesex County | 5 | 1845 | Significant | Poor |
| Case Brothers Upper Pond Dam Hartford County | 16 | 1870 | Significant | Poor |
| Case Brothers Lower Pond Dam Hartford County | 27 | 1870 | Significant | Poor |
| Camp Ramah Upper Pond Middlesex County | 8 | — | Significant | Poor |
| Camp Delaware Dam Litchfield County | 10 | — | Significant | Poor |
| Brush Reservoir Dam Fairfield County | 23 | 1925 | Low | Poor |
| Bristol Reservoir #3 Dam Litchfield County | 14 | — | Significant | Poor |
| Brewster Pond Dam New London County | 13 | 1854 | Significant | Poor |
| Bog Meadow Reservoir Dam New London County | 17 | 1893 | Significant | Poor |
| Bleachery Dam Litchfield County | 15 | 1920 | Low | Poor |
| Bladens River Dam New Haven County | 12 | 1906 | Significant | Poor |
| Blackhouse Road Pond Dam Fairfield County | 9 | — | Significant | Poor |
| Bishops Pond Dam New Haven County | 7 | 1955 | Significant | Poor |
| Bell Pond Dam Hartford County | 14 | 1900 | Significant | Poor |
| Beaver Pond Dam New Haven County | 12 | 1893 | Significant | Poor |
| Barstow Pond Dam Hartford County | 4 | — | Significant | Poor |
| Barnes Reservoir Dam New London County | 22 | 1902 | Significant | Poor |
| Barber Pond Dam Hartford County | 11 | 1955 | High | Poor |
| Baltic Reservoir Dam (East) New London County | 9 | — | Significant | Poor |
| Asylum Reservoir #1 Dam Middlesex County | 5 | — | Significant | Poor |
| Ahlberg Pond Dam Tolland County | 13 | — | Significant | Poor |
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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.