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 122
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Pameacha Pond Dam Middlesex County | 11 | 1870 | Significant | Poor |
| Page Park Pond Dam Hartford County | 8 | — | Significant | Poor |
| Old Quarry Dam Litchfield County | 10 | — | Significant | Poor |
| North Grosvenordale Dam Windham County | 25 | 1900 | High | Poor |
| North Farms Reservoir Dam New Haven County | 5 | 1926 | Significant | Poor |
| New Milford Reservoir #4 Dam Litchfield County | 40 | 1900 | Significant | Poor |
| New City Pond Dam Tolland County | 15 | 1900 | Significant | Poor |
| Murphy Pond Dam Fairfield County | 13 | 1920 | Significant | Poor |
| Mountain Lake Dam Litchfield County | 8 | 1956 | Significant | Poor |
| Mirror Lake Dam Tolland County | 12 | — | High | Poor |
| Mill Pond Dam New London County | 8 | — | Low | Poor |
| Milbrook Upper Lake Dam Fairfield County | 14 | — | Significant | Poor |
| Middle Pond Dam and Dike Litchfield County | 10 | 1900 | Significant | Poor |
| Meadow Ridge Detention Dam Fairfield County | 6 | — | High | Poor |
| Mclaughlin Pond East Dam Tolland County | 11 | 1860 | Significant | Poor |
| Maupus Pond Dam New Haven County | 18 | 1920 | Significant | Poor |
| Malcein Pond Dam Hartford County | 10 | — | Significant | Poor |
| Mad River Dam Homestead Avenue Dam New Haven County | 31 | 1900 | High | Poor |
| Madison Lake Dam New Haven County | 6 | — | Significant | Poor |
| Lee'S Pond Dam Fairfield County | 18 | 1903 | Significant | Poor |
| Lake Whitney Dam New Haven County | 44 | 1861 | High | Poor |
| Kinneytown New Haven County | 21 | 1913 | Significant | Poor |
| Iffland Pond Dam Litchfield County | 15 | — | Significant | Poor |
| Hurds Lake Dam Tolland County | 15 | 1934 | Significant | Poor |
| Hoppers-Birge Pond Dam Hartford County | 16 | 1933 | Significant | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.